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709 changed files with 16501 additions and 76333 deletions

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name: Bug report
description: File a bug report.
title: "[BUG]: "
labels: ["bug"]
body:
- type: markdown
attributes:
value: |
Bug report:
- type: textarea
id: description
attributes:
label: Provide a brief description of the bug.
- type: textarea
id: expected
attributes:
label: Describe what you expected to happen and what actually happened.
- type: textarea
id: reproduction
attributes:
label: Outline the steps that lead to the bug's occurrence. Be specific and provide a clear sequence of actions.
- type: input
id: version
attributes:
label: bec_widgets version
description: which version of BEC widgets was running?
- type: input
id: bec-version
attributes:
label: bec core version
description: which version of BEC core was running?
- type: textarea
id: extra
attributes:
label: Any extra info / data? e.g. log output...
- type: input
id: issues
attributes:
label: Related issues
description: please tag any related issues

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name: "BEC Widgets Install"
description: "Install BEC Widgets and related os dependencies"
inputs:
BEC_WIDGETS_BRANCH: # id of input
required: false
default: "main"
description: "Branch of BEC Widgets to install"
BEC_CORE_BRANCH: # id of input
required: false
default: "main"
description: "Branch of BEC Core to install"
OPHYD_DEVICES_BRANCH: # id of input
required: false
default: "main"
description: "Branch of Ophyd Devices to install"
PYTHON_VERSION: # id of input
required: false
default: "3.11"
description: "Python version to use"
runs:
using: "composite"
steps:
- name: Setup Python
uses: actions/setup-python@v5
with:
python-version: ${{ inputs.PYTHON_VERSION }}
- name: Checkout BEC Core
uses: actions/checkout@v4
with:
repository: bec-project/bec
ref: ${{ inputs.BEC_CORE_BRANCH }}
path: ./bec
- name: Checkout Ophyd Devices
uses: actions/checkout@v4
with:
repository: bec-project/ophyd_devices
ref: ${{ inputs.OPHYD_DEVICES_BRANCH }}
path: ./ophyd_devices
- name: Checkout BEC Widgets
uses: actions/checkout@v4
with:
repository: bec-project/bec_widgets
ref: ${{ inputs.BEC_WIDGETS_BRANCH }}
path: ./bec_widgets
- name: Install dependencies
shell: bash
run: |
sudo apt-get update
sudo apt-get install -y libgl1 libegl1 x11-utils libxkbcommon-x11-0 libdbus-1-3 xvfb
sudo apt-get -y install libnss3 libxdamage1 libasound2t64 libatomic1 libxcursor1
- name: Install Python dependencies
shell: bash
run: |
pip install uv
uv pip install --system -e ./ophyd_devices
uv pip install --system -e ./bec/bec_lib[dev]
uv pip install --system -e ./bec/bec_ipython_client
uv pip install --system -e ./bec_widgets[dev,pyside6]

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import functools
import os
from typing import Literal
import requests
from github import Github
from pydantic import BaseModel
class GHConfig(BaseModel):
token: str
organization: str
repository: str
project_number: int
graphql_url: str
rest_url: str
headers: dict
class ProjectItemHandler:
"""
A class to handle GitHub project items.
"""
def __init__(self, gh_config: GHConfig):
self.gh_config = gh_config
self.gh = Github(gh_config.token)
self.repo = self.gh.get_repo(f"{gh_config.organization}/{gh_config.repository}")
self.project_node_id = self.get_project_node_id()
def set_issue_status(
self,
status: Literal[
"Selected for Development",
"Weekly Backlog",
"In Development",
"Ready For Review",
"On Hold",
"Done",
],
issue_number: int | None = None,
issue_node_id: str | None = None,
):
"""
Set the status field of a GitHub issue in the project.
Args:
status (str): The status to set. Must be one of the predefined statuses.
issue_number (int, optional): The issue number. If not provided, issue_node_id must be provided.
issue_node_id (str, optional): The issue node ID. If not provided, issue_number must be provided.
"""
if not issue_number and not issue_node_id:
raise ValueError("Either issue_number or issue_node_id must be provided.")
if issue_number and issue_node_id:
raise ValueError("Only one of issue_number or issue_node_id must be provided.")
if issue_number is not None:
issue = self.repo.get_issue(issue_number)
issue_id = self.get_issue_info(issue.node_id)[0]["id"]
else:
issue_id = issue_node_id
field_id, option_id = self.get_status_field_id(field_name=status)
self.set_field_option(issue_id, field_id, option_id)
def run_graphql(self, query: str, variables: dict) -> dict:
"""
Execute a GraphQL query against the GitHub API.
Args:
query (str): The GraphQL query to execute.
variables (dict): The variables to pass to the query.
Returns:
dict: The response from the GitHub API.
"""
response = requests.post(
self.gh_config.graphql_url,
json={"query": query, "variables": variables},
headers=self.gh_config.headers,
timeout=10,
)
if response.status_code != 200:
raise Exception(
f"Query failed with status code {response.status_code}: {response.text}"
)
return response.json()
def get_project_node_id(self):
"""
Retrieve the project node ID from the GitHub API.
"""
query = """
query($owner: String!, $number: Int!) {
organization(login: $owner) {
projectV2(number: $number) {
id
}
}
}
"""
variables = {"owner": self.gh_config.organization, "number": self.gh_config.project_number}
resp = self.run_graphql(query, variables)
return resp["data"]["organization"]["projectV2"]["id"]
def get_issue_info(self, issue_node_id: str):
"""
Get the project-related information for a given issue node ID.
Args:
issue_node_id (str): The node ID of the issue. Please note that this is not the issue number and typically starts with "I".
Returns:
list[dict]: A list of project items associated with the issue.
"""
query = """
query($issueId: ID!) {
node(id: $issueId) {
... on Issue {
projectItems(first: 10) {
nodes {
project {
id
title
}
id
fieldValues(first: 20) {
nodes {
... on ProjectV2ItemFieldSingleSelectValue {
name
field {
... on ProjectV2SingleSelectField {
name
}
}
}
}
}
}
}
}
}
}
"""
variables = {"issueId": issue_node_id}
resp = self.run_graphql(query, variables)
return resp["data"]["node"]["projectItems"]["nodes"]
def get_status_field_id(
self,
field_name: Literal[
"Selected for Development",
"Weekly Backlog",
"In Development",
"Ready For Review",
"On Hold",
"Done",
],
) -> tuple[str, str]:
"""
Get the status field ID and option ID for the given field name in the project.
Args:
field_name (str): The name of the field to retrieve.
Must be one of the predefined statuses.
Returns:
tuple[str, str]: A tuple containing the field ID and option ID.
"""
field_id = None
option_id = None
project_fields = self.get_project_fields()
for field in project_fields:
if field["name"] != "Status":
continue
field_id = field["id"]
for option in field["options"]:
if option["name"] == field_name:
option_id = option["id"]
break
if not field_id or not option_id:
raise ValueError(f"Field '{field_name}' not found in project fields.")
return field_id, option_id
def set_field_option(self, item_id, field_id, option_id):
"""
Set the option of a project item for a single-select field.
Args:
item_id (str): The ID of the project item to update.
field_id (str): The ID of the field to update.
option_id (str): The ID of the option to set.
"""
mutation = """
mutation($projectId: ID!, $itemId: ID!, $fieldId: ID!, $optionId: String!) {
updateProjectV2ItemFieldValue(
input: {
projectId: $projectId
itemId: $itemId
fieldId: $fieldId
value: { singleSelectOptionId: $optionId }
}
) {
projectV2Item {
id
}
}
}
"""
variables = {
"projectId": self.project_node_id,
"itemId": item_id,
"fieldId": field_id,
"optionId": option_id,
}
return self.run_graphql(mutation, variables)
@functools.lru_cache(maxsize=1)
def get_project_fields(self) -> list[dict]:
"""
Get the available fields in the project.
This method caches the result to avoid multiple API calls.
Returns:
list[dict]: A list of fields in the project.
"""
query = """
query($projectId: ID!) {
node(id: $projectId) {
... on ProjectV2 {
fields(first: 50) {
nodes {
... on ProjectV2SingleSelectField {
id
name
options {
id
name
}
}
}
}
}
}
}
"""
variables = {"projectId": self.project_node_id}
resp = self.run_graphql(query, variables)
return list(filter(bool, resp["data"]["node"]["fields"]["nodes"]))
def get_pull_request_linked_issues(self, pr_number: int) -> list[dict]:
"""
Get the linked issues of a pull request.
Args:
pr_number (int): The pull request number.
Returns:
list[dict]: A list of linked issues.
"""
query = """
query($number: Int!, $owner: String!, $repo: String!) {
repository(owner: $owner, name: $repo) {
pullRequest(number: $number) {
id
closingIssuesReferences(first: 50) {
edges {
node {
id
body
number
title
}
}
}
}
}
}
"""
variables = {
"number": pr_number,
"owner": self.gh_config.organization,
"repo": self.gh_config.repository,
}
resp = self.run_graphql(query, variables)
edges = resp["data"]["repository"]["pullRequest"]["closingIssuesReferences"]["edges"]
return [edge["node"] for edge in edges if edge.get("node")]
def main():
# GitHub settings
token = os.getenv("TOKEN")
org = os.getenv("ORG")
repo = os.getenv("REPO")
project_number = os.getenv("PROJECT_NUMBER")
pr_number = os.getenv("PR_NUMBER")
if not token:
raise ValueError("GitHub token is not set. Please set the TOKEN environment variable.")
if not org:
raise ValueError("GitHub organization is not set. Please set the ORG environment variable.")
if not repo:
raise ValueError("GitHub repository is not set. Please set the REPO environment variable.")
if not project_number:
raise ValueError(
"GitHub project number is not set. Please set the PROJECT_NUMBER environment variable."
)
if not pr_number:
raise ValueError(
"Pull request number is not set. Please set the PR_NUMBER environment variable."
)
project_number = int(project_number)
pr_number = int(pr_number)
gh_config = GHConfig(
token=token,
organization=org,
repository=repo,
project_number=project_number,
graphql_url="https://api.github.com/graphql",
rest_url=f"https://api.github.com/repos/{org}/{repo}/issues",
headers={"Authorization": f"Bearer {token}", "Accept": "application/vnd.github+json"},
)
project_item_handler = ProjectItemHandler(gh_config=gh_config)
# Get PR info
pr = project_item_handler.repo.get_pull(pr_number)
# Get the linked issues of the pull request
linked_issues = project_item_handler.get_pull_request_linked_issues(pr_number=pr_number)
print(f"Linked issues: {linked_issues}")
target_status = "In Development" if pr.draft else "Ready For Review"
print(f"Target status: {target_status}")
for issue in linked_issues:
project_item_handler.set_issue_status(issue_number=issue["number"], status=target_status)
if __name__ == "__main__":
main()

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pydantic
pygithub

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name: Check PR status for branch
on:
workflow_call:
outputs:
branch-pr:
description: The PR number if the branch is in one
value: ${{ jobs.pr.outputs.branch-pr }}
jobs:
pr:
runs-on: "ubuntu-latest"
outputs:
branch-pr: ${{ steps.script.outputs.result }}
steps:
- uses: actions/github-script@v7
id: script
if: github.event_name == 'push' && github.event.ref_type != 'tag'
with:
script: |
const prs = await github.rest.pulls.list({
owner: context.repo.owner,
repo: context.repo.repo,
head: context.repo.owner + ':${{ github.ref_name }}'
})
if (prs.data.length) {
console.log(`::notice ::Skipping CI on branch push as it is already run in PR #${prs.data[0]["number"]}`)
return prs.data[0]["number"]
}

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name: Full CI
on:
push:
pull_request:
workflow_dispatch:
inputs:
BEC_WIDGETS_BRANCH:
description: 'Branch of BEC Widgets to install'
required: false
type: string
BEC_CORE_BRANCH:
description: 'Branch of BEC Core to install'
required: false
type: string
OPHYD_DEVICES_BRANCH:
description: 'Branch of Ophyd Devices to install'
required: false
type: string
permissions:
pull-requests: write
jobs:
check_pr_status:
uses: ./.github/workflows/check_pr.yml
formatter:
needs: check_pr_status
if: needs.check_pr_status.outputs.branch-pr == ''
uses: ./.github/workflows/formatter.yml
unit-test:
needs: [check_pr_status, formatter]
if: needs.check_pr_status.outputs.branch-pr == ''
uses: ./.github/workflows/pytest.yml
with:
BEC_WIDGETS_BRANCH: ${{ inputs.BEC_WIDGETS_BRANCH || github.head_ref }}
BEC_CORE_BRANCH: ${{ inputs.BEC_CORE_BRANCH || 'main' }}
OPHYD_DEVICES_BRANCH: ${{ inputs.OPHYD_DEVICES_BRANCH || 'main' }}
secrets:
CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
unit-test-matrix:
needs: [check_pr_status, formatter]
if: needs.check_pr_status.outputs.branch-pr == ''
uses: ./.github/workflows/pytest-matrix.yml
with:
BEC_WIDGETS_BRANCH: ${{ inputs.BEC_WIDGETS_BRANCH || github.head_ref || github.sha}}
BEC_CORE_BRANCH: ${{ inputs.BEC_CORE_BRANCH || 'main' }}
OPHYD_DEVICES_BRANCH: ${{ inputs.OPHYD_DEVICES_BRANCH || 'main' }}
generate-cli-test:
needs: [check_pr_status, formatter]
if: needs.check_pr_status.outputs.branch-pr == ''
uses: ./.github/workflows/generate-cli-check.yml
end2end-test:
needs: [check_pr_status, formatter]
if: needs.check_pr_status.outputs.branch-pr == ''
uses: ./.github/workflows/end2end-conda.yml

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name: Run Pytest with Coverage
on: [workflow_call]
jobs:
pytest:
runs-on: ubuntu-latest
defaults:
run:
shell: bash -el {0}
env:
CHILD_PIPELINE_BRANCH: main # Set the branch you want for ophyd_devices
BEC_CORE_BRANCH: main # Set the branch you want for bec
OPHYD_DEVICES_BRANCH: main # Set the branch you want for ophyd_devices
PLUGIN_REPO_BRANCH: main # Set the branch you want for the plugin repo
PROJECT_PATH: ${{ github.repository }}
QTWEBENGINE_DISABLE_SANDBOX: 1
QT_QPA_PLATFORM: "offscreen"
steps:
- uses: actions/checkout@v4
- name: Set up Conda
uses: conda-incubator/setup-miniconda@v3
with:
auto-update-conda: true
auto-activate-base: true
python-version: '3.11'
- name: Install dependencies
run: |
sudo apt-get update
sudo apt-get install -y libgl1 libegl1 x11-utils libxkbcommon-x11-0 libdbus-1-3 xvfb
sudo apt-get -y install libnss3 libxdamage1 libasound2t64 libatomic1 libxcursor1
- name: Conda install and run pytest
run: |
echo -e "\033[35;1m Using branch $BEC_CORE_BRANCH of BEC CORE \033[0;m";
git clone --branch $BEC_CORE_BRANCH https://github.com/bec-project/bec.git
echo -e "\033[35;1m Using branch $OPHYD_DEVICES_BRANCH of OPHYD_DEVICES \033[0;m";
git clone --branch $OPHYD_DEVICES_BRANCH https://github.com/bec-project/ophyd_devices.git
export OHPYD_DEVICES_PATH=$PWD/ophyd_devices
echo -e "\033[35;1m Using branch $PLUGIN_REPO_BRANCH of bec_testing_plugin \033[0;m";
git clone --branch $PLUGIN_REPO_BRANCH https://github.com/bec-project/bec_testing_plugin.git
cd ./bec
conda create -q -n test-environment python=3.11
source ./bin/install_bec_dev.sh -t
cd ../
pip install -e ./ophyd_devices -e .[dev,pyside6] -e ./bec_testing_plugin
pytest -v --files-path ./ --start-servers --random-order ./tests/end-2-end
- name: Upload logs if job fails
if: failure()
uses: actions/upload-artifact@v4
with:
name: pytest-logs
path: ./logs/*.log
retention-days: 7

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name: Formatter and Pylint jobs
on: [workflow_call]
jobs:
Formatter:
runs-on: ubuntu-latest
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: '3.13'
- name: Run black and isort
run: |
pip install uv
uv pip install --system black isort
uv pip install --system -e .[dev]
black --check --diff --color .
isort --check --diff ./
- name: Check for disallowed imports from PySide
run: '! grep -re "from PySide6\." bec_widgets/ tests/ | grep -v -e "PySide6.QtDesigner" -e "PySide6.scripts"'
Pylint:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: '3.13'
- name: Install dependencies
run: |
python -m pip install --upgrade pip
pip install pylint pylint-exit anybadge
- name: Run Pylint
run: |
mkdir -p ./pylint
set +e
pylint ./${{ github.event.repository.name }} --output-format=text > ./pylint/pylint.log
pylint-exit $?
set -e
- name: Extract Pylint Score
id: score
run: |
SCORE=$(sed -n 's/^Your code has been rated at \([-0-9.]*\)\/.*/\1/p' ./pylint/pylint.log)
echo "score=$SCORE" >> $GITHUB_OUTPUT
- name: Create Badge
run: |
anybadge --label=Pylint --file=./pylint/pylint.svg --value="${{ steps.score.outputs.score }}" 2=red 4=orange 8=yellow 10=green
- name: Upload Artifacts
uses: actions/upload-artifact@v4
with:
name: pylint-artifacts
path: |
# ./pylint/pylint.log # not sure why this isn't working
./pylint/pylint.svg

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name: Run bw-generate-cli
on: [workflow_call]
jobs:
pytest:
runs-on: ubuntu-latest
defaults:
run:
shell: bash -el {0}
env:
CHILD_PIPELINE_BRANCH: main # Set the branch you want for ophyd_devices
BEC_CORE_BRANCH: main # Set the branch you want for bec
OPHYD_DEVICES_BRANCH: main # Set the branch you want for ophyd_devices
PROJECT_PATH: ${{ github.repository }}
QTWEBENGINE_DISABLE_SANDBOX: 1
QT_QPA_PLATFORM: "offscreen"
steps:
- uses: actions/checkout@v4
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.11"
- name: Install os dependencies
run: |
sudo apt-get update
sudo apt-get install -y libgl1 libegl1 x11-utils libxkbcommon-x11-0 libdbus-1-3 xvfb
sudo apt-get -y install libnss3 libxdamage1 libasound2t64 libatomic1 libxcursor1
- name: Clone and install dependencies
run: |
echo -e "\033[35;1m Using branch $BEC_CORE_BRANCH of BEC CORE \033[0;m";
git clone --branch $BEC_CORE_BRANCH https://github.com/bec-project/bec.git
echo -e "\033[35;1m Using branch $OPHYD_DEVICES_BRANCH of OPHYD_DEVICES \033[0;m";
git clone --branch $OPHYD_DEVICES_BRANCH https://github.com/bec-project/ophyd_devices.git
export OHPYD_DEVICES_PATH=$PWD/ophyd_devices
pip install -e ./ophyd_devices
pip install -e ./bec/bec_lib[dev]
pip install -e ./bec/bec_ipython_client
pip install -e .[dev,pyside6]
- name: Run bw-generate-cli
run: |
bw-generate-cli --target bec_widgets
git diff --exit-code

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name: Run Pytest with different Python versions
on:
workflow_call:
inputs:
pr_number:
description: 'Pull request number'
required: false
type: number
BEC_CORE_BRANCH:
description: 'Branch of BEC Core to install'
required: false
default: 'main'
type: string
OPHYD_DEVICES_BRANCH:
description: 'Branch of Ophyd Devices to install'
required: false
default: 'main'
type: string
BEC_WIDGETS_BRANCH:
description: 'Branch of BEC Widgets to install'
required: false
default: 'main'
type: string
jobs:
pytest-matrix:
runs-on: ubuntu-latest
strategy:
matrix:
python-version: ["3.10", "3.11", "3.12"]
env:
BEC_WIDGETS_BRANCH: main # Set the branch you want for bec_widgets
BEC_CORE_BRANCH: main # Set the branch you want for bec
OPHYD_DEVICES_BRANCH: main # Set the branch you want for ophyd_devices
PROJECT_PATH: ${{ github.repository }}
QTWEBENGINE_DISABLE_SANDBOX: 1
QT_QPA_PLATFORM: "offscreen"
steps:
- name: Checkout BEC Widgets
uses: actions/checkout@v4
with:
repository: bec-project/bec_widgets
ref: ${{ inputs.BEC_WIDGETS_BRANCH }}
- name: Install BEC Widgets and dependencies
uses: ./.github/actions/bw_install
with:
BEC_WIDGETS_BRANCH: ${{ inputs.BEC_WIDGETS_BRANCH }}
BEC_CORE_BRANCH: ${{ inputs.BEC_CORE_BRANCH }}
OPHYD_DEVICES_BRANCH: ${{ inputs.OPHYD_DEVICES_BRANCH }}
PYTHON_VERSION: ${{ matrix.python-version }}
- name: Run Pytest
run: |
pip install pytest pytest-random-order
pytest -v --junitxml=report.xml --random-order ./tests/unit_tests

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name: Run Pytest with Coverage
on:
workflow_call:
inputs:
pr_number:
description: 'Pull request number'
required: false
type: number
BEC_CORE_BRANCH:
description: 'Branch of BEC Core to install'
required: false
default: 'main'
type: string
OPHYD_DEVICES_BRANCH:
description: 'Branch of Ophyd Devices to install'
required: false
default: 'main'
type: string
BEC_WIDGETS_BRANCH:
description: 'Branch of BEC Widgets to install'
required: false
default: 'main'
type: string
secrets:
CODECOV_TOKEN:
required: true
permissions:
pull-requests: write
jobs:
pytest:
runs-on: ubuntu-latest
env:
QTWEBENGINE_DISABLE_SANDBOX: 1
QT_QPA_PLATFORM: "offscreen"
steps:
- name: Checkout BEC Widgets
uses: actions/checkout@v4
with:
repository: bec-project/bec_widgets
ref: ${{ inputs.BEC_WIDGETS_BRANCH }}
- name: Install BEC Widgets and dependencies
uses: ./.github/actions/bw_install
with:
BEC_WIDGETS_BRANCH: ${{ inputs.BEC_WIDGETS_BRANCH }}
BEC_CORE_BRANCH: ${{ inputs.BEC_CORE_BRANCH }}
OPHYD_DEVICES_BRANCH: ${{ inputs.OPHYD_DEVICES_BRANCH }}
PYTHON_VERSION: 3.11
- name: Run Pytest with Coverage
id: coverage
run: pytest --random-order --cov=bec_widgets --cov-config=pyproject.toml --cov-branch --cov-report=xml --no-cov-on-fail tests/unit_tests/
- name: Upload coverage to Codecov
uses: codecov/codecov-action@v5
with:
token: ${{ secrets.CODECOV_TOKEN }}
slug: bec-project/bec_widgets

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name: Continuous Delivery
on:
push:
branches:
- main
# default: least privileged permissions across all jobs
permissions:
contents: read
jobs:
release:
runs-on: ubuntu-latest
concurrency:
group: ${{ github.workflow }}-release-${{ github.ref_name }}
cancel-in-progress: false
env:
CHILD_PIPELINE_BRANCH: main # Set the branch you want for ophyd_devices
BEC_CORE_BRANCH: main # Set the branch you want for bec
OPHYD_DEVICES_BRANCH: main # Set the branch you want for ophyd_devices
PROJECT_PATH: ${{ github.repository }}
QTWEBENGINE_DISABLE_SANDBOX: 1
QT_QPA_PLATFORM: "offscreen"
permissions:
contents: write
steps:
# Note: We checkout the repository at the branch that triggered the workflow
# with the entire history to ensure to match PSR's release branch detection
# and history evaluation.
# However, we forcefully reset the branch to the workflow sha because it is
# possible that the branch was updated while the workflow was running. This
# prevents accidentally releasing un-evaluated changes.
- name: Setup | Checkout Repository on Release Branch
uses: actions/checkout@v4
with:
ref: ${{ github.ref_name }}
fetch-depth: 0
ssh-key: ${{ secrets.CI_DEPLOY_SSH_KEY }}
ssh-known-hosts: ${{ secrets.CI_DEPLOY_SSH_KNOWN_HOSTS }}
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: '3.11'
- name: Setup | Force release branch to be at workflow sha
run: |
git reset --hard ${{ github.sha }}
- name: Evaluate | Verify upstream has NOT changed
# Last chance to abort before causing an error as another PR/push was applied to
# the upstream branch while this workflow was running. This is important
# because we are committing a version change (--commit). You may omit this step
# if you have 'commit: false' in your configuration.
#
# You may consider moving this to a repo script and call it from this step instead
# of writing it in-line.
shell: bash
run: |
set +o pipefail
UPSTREAM_BRANCH_NAME="$(git status -sb | head -n 1 | cut -d' ' -f2 | grep -E '\.{3}' | cut -d'.' -f4)"
printf '%s\n' "Upstream branch name: $UPSTREAM_BRANCH_NAME"
set -o pipefail
if [ -z "$UPSTREAM_BRANCH_NAME" ]; then
printf >&2 '%s\n' "::error::Unable to determine upstream branch name!"
exit 1
fi
git fetch "${UPSTREAM_BRANCH_NAME%%/*}"
if ! UPSTREAM_SHA="$(git rev-parse "$UPSTREAM_BRANCH_NAME")"; then
printf >&2 '%s\n' "::error::Unable to determine upstream branch sha!"
exit 1
fi
HEAD_SHA="$(git rev-parse HEAD)"
if [ "$HEAD_SHA" != "$UPSTREAM_SHA" ]; then
printf >&2 '%s\n' "[HEAD SHA] $HEAD_SHA != $UPSTREAM_SHA [UPSTREAM SHA]"
printf >&2 '%s\n' "::error::Upstream has changed, aborting release..."
exit 1
fi
printf '%s\n' "Verified upstream branch has not changed, continuing with release..."
- name: Semantic Version Release
id: release
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
pip install python-semantic-release==9.* wheel build twine
semantic-release -vv version
if [ ! -d dist ]; then echo No release will be made; exit 0; fi
twine upload dist/* -u __token__ -p ${{ secrets.CI_PYPI_TOKEN }} --skip-existing
semantic-release publish

View File

@@ -1,15 +0,0 @@
name: 'Close stale issues and PRs'
on:
schedule:
- cron: '00 10 * * *'
jobs:
stale:
runs-on: ubuntu-latest
steps:
- uses: actions/stale@v9
with:
stale-issue-message: 'This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.'
stale-pr-message: 'This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.'
days-before-stale: 60
days-before-close: 7

View File

@@ -1,40 +0,0 @@
name: Sync PR to Project
on:
pull_request:
types: [opened, edited, ready_for_review, converted_to_draft, reopened, synchronize]
jobs:
sync-project:
runs-on: ubuntu-latest
permissions:
issues: write
pull-requests: read
contents: read
env:
PROJECT_NUMBER: 3 # BEC Project
ORG: 'bec-project'
REPO: 'bec_widgets'
TOKEN: ${{ secrets.ADD_ISSUE_TO_PROJECT }}
PR_NUMBER: ${{ github.event.pull_request.number }}
steps:
- name: Set up python environment
uses: actions/setup-python@v4
with:
python-version: 3.11
- name: Checkout repo
uses: actions/checkout@v4
with:
repository: ${{ github.repository }}
ref: ${{ github.event.pull_request.head.ref }}
- name: Install dependencies
run: |
pip install -r ./.github/scripts/pr_issue_sync/requirements.txt
- name: Sync PR to Project
run: |
python ./.github/scripts/pr_issue_sync/pr_issue_sync.py

3
.gitignore vendored
View File

@@ -64,9 +64,6 @@ coverage.xml
.pytest_cache/
cover/
# Output from end2end testing
tests/reference_failures/
# Translations
*.mo
*.pot

View File

@@ -1,20 +1,13 @@
# This file is a template, and might need editing before it works on your project.
# Official language image. Look for the different tagged releases at:
# https://hub.docker.com/r/library/python/tags/
image: $CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX/python:3.11
image: $CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX/python:3.10
#commands to run in the Docker container before starting each job.
variables:
DOCKER_TLS_CERTDIR: ""
BEC_CORE_BRANCH:
description: bec branch
value: main
OPHYD_DEVICES_BRANCH:
description: ophyd_devices branch
value: main
BEC_CORE_BRANCH: "main"
OPHYD_DEVICES_BRANCH: "main"
CHILD_PIPELINE_BRANCH: $CI_DEFAULT_BRANCH
CHECK_PKG_VERSIONS:
description: Whether to run additional tests against min/max/random selection of dependencies. Set to 1 for running.
value: 0
workflow:
rules:
@@ -29,13 +22,7 @@ workflow:
include:
- template: Security/Secret-Detection.gitlab-ci.yml
- project: "bec/awi_utils"
file: "/templates/check-packages-job.yml"
inputs:
stage: test
path: "."
pytest_args: "-v,--random-order,tests/unit_tests"
pip_args: ".[dev]"
# different stages in the pipeline
stages:
@@ -45,30 +32,8 @@ stages:
- End2End
- Deploy
.install-qt-webengine-deps: &install-qt-webengine-deps
- apt-get -y install libnss3 libxdamage1 libasound2 libatomic1 libxcursor1
- export QTWEBENGINE_DISABLE_SANDBOX=1
.clone-repos: &clone-repos
- echo -e "\033[35;1m Using branch $BEC_CORE_BRANCH of BEC CORE \033[0;m";
- git clone --branch $BEC_CORE_BRANCH https://gitlab.psi.ch/bec/bec.git
- echo -e "\033[35;1m Using branch $OPHYD_DEVICES_BRANCH of OPHYD_DEVICES \033[0;m";
- git clone --branch $OPHYD_DEVICES_BRANCH https://gitlab.psi.ch/bec/ophyd_devices.git
- export OHPYD_DEVICES_PATH=$PWD/ophyd_devices
.install-repos: &install-repos
- pip install -e ./ophyd_devices
- pip install -e ./bec/bec_lib[dev]
- pip install -e ./bec/bec_ipython_client
- pip install -e ./bec/pytest_bec_e2e
.install-os-packages: &install-os-packages
- apt-get update
- apt-get install -y libgl1-mesa-glx libegl1-mesa x11-utils libxkbcommon-x11-0 libdbus-1-3 xvfb
- *install-qt-webengine-deps
before_script:
- if [[ "$CI_PROJECT_PATH" != "bec/bec_widgets" ]]; then
- if [[ "$CI_PROJECT_PATH" != "bec/bec_widgets" ]]; then
echo -e "\033[35;1m Using branch $CHILD_PIPELINE_BRANCH of BEC Widgets \033[0;m";
test -d bec_widgets || git clone --branch $CHILD_PIPELINE_BRANCH https://gitlab.psi.ch/bec/bec_widgets.git; cd bec_widgets;
fi
@@ -77,9 +42,9 @@ formatter:
stage: Formatter
needs: []
script:
- pip install -e ./[dev]
- isort --check --diff --line-length=100 --profile=black --multi-line=3 --trailing-comma ./
- black --check --diff --color --line-length=100 --skip-magic-trailing-comma ./
- pip install black isort
- isort --check --diff ./
- black --check --diff --color ./
rules:
- if: $CI_PROJECT_PATH == "bec/bec_widgets"
@@ -88,7 +53,7 @@ pylint:
needs: []
before_script:
- pip install pylint pylint-exit anybadge
- pip install -e .[dev]
- pip install -e .[dev,pyqt6]
script:
- mkdir ./pylint
- pylint ./bec_widgets --output-format=text --output=./pylint/pylint.log | tee ./pylint/pylint.log || pylint-exit $?
@@ -100,7 +65,7 @@ pylint:
- ./pylint/
expire_in: 1 week
rules:
- if: $CI_PROJECT_PATH == "bec/bec_widgets"
- if: $CI_PROJECT_PATH == "bec/bec_widgets"
pylint-check:
stage: Formatter
@@ -111,21 +76,18 @@ pylint-check:
- apt-get update
- apt-get install -y bc
script:
- git fetch origin $CI_MERGE_REQUEST_TARGET_BRANCH_NAME
# Identify changed Python files
- if [ "$CI_PIPELINE_SOURCE" == "merge_request_event" ]; then
TARGET_BRANCH_COMMIT_SHA=$(git rev-parse origin/$CI_MERGE_REQUEST_TARGET_BRANCH_NAME);
CHANGED_FILES=$(git diff --name-only $TARGET_BRANCH_COMMIT_SHA HEAD | grep '\.py$' || true);
TARGET_BRANCH_COMMIT_SHA=$(git rev-parse $CI_MERGE_REQUEST_TARGET_BRANCH_NAME);
CHANGED_FILES=$(git diff --name-only $SOURCE_BRANCH_COMMIT_SHA $TARGET_BRANCH_COMMIT_SHA | grep '\.py$' || true);
else
CHANGED_FILES=$(git diff --name-only $CI_COMMIT_BEFORE_SHA $CI_COMMIT_SHA | grep '\.py$' || true);
CHANGED_FILES=$(git diff --name-only $CI_COMMIT_BEFORE_SHA $CI_COMMIT_SHA | grep '\.py$' || true);
fi
- if [ -z "$CHANGED_FILES" ]; then echo "No Python files changed."; exit 0; fi
- echo "Changed Python files:"
- $CHANGED_FILES
# Run pylint only on changed files
- mkdir ./pylint
- pylint $CHANGED_FILES --output-format=text | tee ./pylint/pylint_changed_files.log || pylint-exit $?
- pylint $CHANGED_FILES --output-format=text . | tee ./pylint/pylint_changed_files.log || pylint-exit $?
- PYLINT_SCORE=$(sed -n 's/^Your code has been rated at \([-0-9.]*\)\/.*/\1/p' ./pylint/pylint_changed_files.log)
- echo "Pylint score is $PYLINT_SCORE"
@@ -136,19 +98,22 @@ pylint-check:
- ./pylint/
expire_in: 1 week
rules:
- if: $CI_PROJECT_PATH == "bec/bec_widgets"
- if: $CI_PROJECT_PATH == "bec/bec_widgets"
tests:
stage: test
needs: []
variables:
QT_QPA_PLATFORM: "offscreen"
QT_QPA_PLATFORM: "offscreen"
script:
- *clone-repos
- *install-os-packages
- *install-repos
- pip install -e .[dev,pyside6]
- coverage run --source=./bec_widgets -m pytest -v --junitxml=report.xml --maxfail=2 --random-order --full-trace ./tests/unit_tests
- git clone --branch $BEC_CORE_BRANCH https://gitlab.psi.ch/bec/bec.git
- git clone --branch $OPHYD_DEVICES_BRANCH https://gitlab.psi.ch/bec/ophyd_devices.git
- export OHPYD_DEVICES_PATH=$PWD/ophyd_devices
- apt-get update
- apt-get install -y libgl1-mesa-glx libegl1-mesa x11-utils libxkbcommon-x11-0 libdbus-1-3
- pip install -e ./bec/bec_lib[dev]
- pip install -e .[dev,pyqt6]
- coverage run --source=./bec_widgets -m pytest -v --junitxml=report.xml --random-order --full-trace ./tests/unit_tests
- coverage report
- coverage xml
coverage: '/(?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$/'
@@ -158,79 +123,51 @@ tests:
coverage_report:
coverage_format: cobertura
path: coverage.xml
paths:
- tests/reference_failures/
when: always
generate-client-check:
stage: test
needs: []
variables:
QT_QPA_PLATFORM: "offscreen"
script:
- *clone-repos
- *install-os-packages
- *install-repos
- pip install -e .[dev,pyside6]
- bw-generate-cli --target bec_widgets
# if there are changes in the generated files, fail the job
- git diff --exit-code
test-matrix:
parallel:
matrix:
- PYTHON_VERSION:
- "3.10"
- "3.11"
- "3.12"
QT_PCKG:
- "pyside6"
tests-3.11:
extends: "tests"
stage: AdditionalTests
needs: []
variables:
QT_QPA_PLATFORM: "offscreen"
PYTHON_VERSION: ""
QT_PCKG: ""
image: $CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX/python:$PYTHON_VERSION
script:
- *clone-repos
- *install-os-packages
- *install-repos
- pip install -e .[dev,$QT_PCKG]
- pytest -v --maxfail=2 --junitxml=report.xml --random-order ./tests/unit_tests
image: $CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX/python:3.11
allow_failure: true
tests-3.12:
extends: "tests"
stage: AdditionalTests
image: $CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX/python:3.12
allow_failure: true
end-2-end-conda:
stage: End2End
needs: []
image: continuumio/miniconda3:25.1.1-2
image: continuumio/miniconda3
allow_failure: false
variables:
QT_QPA_PLATFORM: "offscreen"
script:
- *clone-repos
- *install-os-packages
- conda config --show-sources
- conda config --add channels conda-forge
- conda config --system --remove channels https://repo.anaconda.com/pkgs/main
- conda config --system --remove channels https://repo.anaconda.com/pkgs/r
- conda config --remove channels https://repo.anaconda.com/pkgs/main
- conda config --remove channels https://repo.anaconda.com/pkgs/r
- conda config --show-sources
- apt-get update
- apt-get install -y libgl1-mesa-glx libegl1-mesa x11-utils libxkbcommon-x11-0 libdbus-1-3
- conda config --prepend channels conda-forge
- conda config --set channel_priority strict
- conda config --set always_yes yes --set changeps1 no
- conda create -q -n test-environment python=3.11
- conda create -q -n test-environment python=3.10
- conda init bash
- source ~/.bashrc
- conda activate test-environment
- git clone --branch $BEC_CORE_BRANCH https://gitlab.psi.ch/bec/bec.git
- git clone --branch $OPHYD_DEVICES_BRANCH https://gitlab.psi.ch/bec/ophyd_devices.git
- export OHPYD_DEVICES_PATH=$PWD/ophyd_devices
- cd ./bec
- source ./bin/install_bec_dev.sh -t
- cd ../
- pip install -e ./ophyd_devices
- pip install -e .[dev,pyside6]
- pytest -v --files-path ./ --start-servers --random-order ./tests/end-2-end
- pip install -e ./bec_lib[dev]
- pip install -e ./bec_ipython_client[dev]
- cd ../
- pip install -e .[dev,pyqt6]
- cd ./tests/end-2-end
- pytest --start-servers --flush-redis --random-order
artifacts:
when: on_failure
@@ -245,7 +182,7 @@ end-2-end-conda:
- if: '$CI_PIPELINE_SOURCE == "parent_pipeline"'
- if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME == "main"'
- if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME == "production"'
- if: "$CI_MERGE_REQUEST_TARGET_BRANCH_NAME =~ /^pre_release.*$/"
semver:
stage: Deploy
@@ -265,7 +202,7 @@ semver:
- pip install python-semantic-release==9.* wheel build twine
- export GL_TOKEN=$CI_UPDATES
- semantic-release -vv version
# check if any artifacts were created
- if [ ! -d dist ]; then echo No release will be made; exit 0; fi
- twine upload dist/* -u __token__ -p $CI_PYPI_TOKEN --skip-existing
@@ -281,7 +218,7 @@ pages:
variables:
TARGET_BRANCH: $CI_COMMIT_REF_NAME
rules:
- if: "$CI_COMMIT_TAG != null"
- if: '$CI_COMMIT_TAG != null'
variables:
TARGET_BRANCH: $CI_COMMIT_TAG
- if: '$CI_COMMIT_REF_NAME == "main" && $CI_PROJECT_PATH == "bec/bec_widgets"'

View File

@@ -0,0 +1,17 @@
## Bug report
## Summary
[Provide a brief description of the bug.]
## Expected Behavior vs Actual Behavior
[Describe what you expected to happen and what actually happened.]
## Steps to Reproduce
[Outline the steps that lead to the bug's occurrence. Be specific and provide a clear sequence of actions.]
## Related Issues
[Paste links to any related issues or feature requests.]

View File

@@ -1,13 +1,3 @@
---
name: Documentation update request
about: Suggest an update to the docs
title: '[DOCS]: '
type: documentation
label: documentation
assignees: ''
---
## Documentation Section
[Specify the section or page of the documentation that needs updating]

View File

@@ -1,13 +1,3 @@
---
name: Feature request
about: Suggest an idea for this project
title: '[FEAT]: '
type: feature
label: feature
assignees: ''
---
## Feature Summary
[Provide a brief and clear summary of the new feature you are requesting]
@@ -47,3 +37,4 @@ assignees: ''
## Additional Information
[Provide any additional information that might be relevant to the feature request, such as user feedback, market trends, or similar features in other products]

View File

@@ -1,24 +1,19 @@
## Description
[Provide a brief description of the changes introduced by this pull request.]
[Provide a brief description of the changes introduced by this merge request.]
## Related Issues
[Cite any related issues or feature requests that are addressed or resolved by this pull request. Link the associated issue, for example, with `fixes #123` or `closes #123`.]
[Cite any related issues or feature requests that are addressed or resolved by this merge request. Use the gitlab syntax for linking issues, for example, `fixes #123` or `closes #123`.]
## Type of Change
- Change 1
- Change 2
## How to test
- Run unit tests
- Open [widget] in designer and play around with the properties
## Potential side effects
[Describe any potential side effects or risks of merging this PR.]
[Describe any potential side effects or risks of merging this MR.]
## Screenshots / GIFs (if applicable)

View File

@@ -3,7 +3,7 @@
# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may
# run arbitrary code.
extension-pkg-allow-list=PyQt6, PySide6, pyqtgraph
extension-pkg-allow-list=PyQt5, pyqtgraph
# A comma-separated list of package or module names from where C extensions may
# be loaded. Extensions are loading into the active Python interpreter and may

View File

@@ -7,13 +7,13 @@ version: 2
# Set the version of Python and other tools you might need
build:
os: ubuntu-22.04
os: ubuntu-20.04
tools:
python: "3.11"
python: "3.10"
# Build documentation in the docs/ directory with Sphinx
sphinx:
configuration: docs/conf.py
configuration: docs/conf.py
# If using Sphinx, optionally build your docs in additional formats such as PDF
# formats:
@@ -21,7 +21,5 @@ sphinx:
# Optionally declare the Python requirements required to build your docs
python:
install:
- requirements: docs/requirements.txt
- method: pip
path: .[dev]
install:
- requirements: docs/requirements.txt

File diff suppressed because it is too large Load Diff

View File

@@ -1,6 +1,6 @@
BSD 3-Clause License
Copyright (c) 2025, Paul Scherrer Institute
Copyright (c) 2023, bec
All rights reserved.
Redistribution and use in source and binary forms, with or without

View File

@@ -1,28 +1,12 @@
# BEC Widgets
[![CI](https://github.com/bec-project/bec_widgets/actions/workflows/ci.yml/badge.svg)](https://github.com/bec-project/bec_widgets/actions/workflows/ci.yml)
[![badge](https://img.shields.io/pypi/v/bec-widgets)](https://pypi.org/project/bec-widgets/)
[![License](https://img.shields.io/github/license/bec-project/bec_widgets)](./LICENSE)
[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
[![Python](https://img.shields.io/badge/python-3.10%20%7C%203.11%20%7C%203.12-blue?logo=python&logoColor=white)](https://www.python.org)
[![PySide6](https://img.shields.io/badge/PySide6-blue?logo=qt&logoColor=white)](https://doc.qt.io/qtforpython/)
[![Conventional Commits](https://img.shields.io/badge/conventional%20commits-1.0.0-yellow?logo=conventionalcommits&logoColor=white)](https://conventionalcommits.org)
[![codecov](https://codecov.io/gh/bec-project/bec_widgets/graph/badge.svg?token=0Z9IQRJKMY)](https://codecov.io/gh/bec-project/bec_widgets)
**⚠️ Important Notice:**
🚨 **PyQt6 is no longer supported** due to incompatibilities with Qt Designer. Please use **PySide6** instead. 🚨
BEC Widgets is a GUI framework designed for interaction with [BEC (Beamline Experiment Control)](https://gitlab.psi.ch/bec/bec).
## Installation
Use the package manager [pip](https://pip.pypa.io/en/stable/) to install BEC Widgets:
```bash
pip install bec_widgets[pyside6]
pip install bec_widgets PyQt6
```
For development purposes, you can clone the repository and install the package locally in editable mode:
@@ -30,12 +14,22 @@ For development purposes, you can clone the repository and install the package l
```bash
git clone https://gitlab.psi.ch/bec/bec-widgets
cd bec_widgets
pip install -e .[dev,pyside6]
pip install -e .[dev,pyqt6]
```
BEC Widgets now **only supports PySide6**. Users must manually install PySide6 as no default Qt distribution is
specified.
BEC Widgets currently supports both PyQt5 and PyQt6, however, no default distribution is specified. As a result, users must install one of the supported
Python Qt distributions manually.
To select a specific Python Qt distribution, install the package with an additional tag:
```bash
pip install bec_widgets[pyqt6]
```
or
```bash
pip install bec_widgets[pyqt5]
```
## Documentation
Documentation of BEC Widgets can be found [here](https://bec-widgets.readthedocs.io/en/latest/). The documentation of the BEC can be found [here](https://bec.readthedocs.io/en/latest/).
@@ -45,7 +39,7 @@ Documentation of BEC Widgets can be found [here](https://bec-widgets.readthedocs
All commits should use the Angular commit scheme:
> #### <a name="commit-header"></a>Angular Commit Message Header
>
>
> ```
> <type>(<scope>): <short summary>
> │ │ │
@@ -59,13 +53,13 @@ All commits should use the Angular commit scheme:
>
> └─⫸ Commit Type: build|ci|docs|feat|fix|perf|refactor|test
> ```
>
>
> The `<type>` and `<summary>` fields are mandatory, the `(<scope>)` field is optional.
> ##### Type
>
>
> Must be one of the following:
>
>
> * **build**: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
> * **ci**: Changes to our CI configuration files and scripts (examples: CircleCi, SauceLabs)
> * **docs**: Documentation only changes
@@ -77,5 +71,4 @@ All commits should use the Angular commit scheme:
## License
[BSD-3-Clause](https://choosealicense.com/licenses/bsd-3-clause/)
[BSD-3-Clause](https://choosealicense.com/licenses/bsd-3-clause/)

View File

@@ -1,4 +0,0 @@
from bec_widgets.utils.bec_widget import BECWidget
from bec_widgets.utils.error_popups import SafeProperty, SafeSlot
__all__ = ["BECWidget", "SafeSlot", "SafeProperty"]

View File

@@ -1,23 +0,0 @@
from __future__ import annotations
from bec_widgets.widgets.containers.auto_update.auto_updates import AutoUpdates
from bec_widgets.widgets.containers.dock.dock_area import BECDockArea
def dock_area(object_name: str | None = None) -> BECDockArea:
_dock_area = BECDockArea(object_name=object_name, root_widget=True)
return _dock_area
def auto_update_dock_area(object_name: str | None = None) -> AutoUpdates:
"""
Create a dock area with auto update enabled.
Args:
object_name(str): The name of the dock area.
Returns:
BECDockArea: The created dock area.
"""
_auto_update = AutoUpdates(object_name=object_name)
return _auto_update

View File

@@ -1,583 +0,0 @@
from __future__ import annotations
import os
import xml.etree.ElementTree as ET
from typing import TYPE_CHECKING, Callable
from bec_lib.logger import bec_logger
from qtpy.QtCore import Qt, Signal # type: ignore
from qtpy.QtGui import QFontMetrics, QPainter, QPainterPath, QPixmap
from qtpy.QtWidgets import (
QApplication,
QComboBox,
QFileDialog,
QHBoxLayout,
QLabel,
QPushButton,
QSizePolicy,
QSpacerItem,
QWidget,
)
import bec_widgets
from bec_widgets.cli.rpc.rpc_register import RPCRegister
from bec_widgets.utils.bec_plugin_helper import get_all_plugin_widgets
from bec_widgets.utils.container_utils import WidgetContainerUtils
from bec_widgets.utils.error_popups import SafeSlot
from bec_widgets.utils.name_utils import pascal_to_snake
from bec_widgets.utils.plugin_utils import get_plugin_auto_updates
from bec_widgets.utils.round_frame import RoundedFrame
from bec_widgets.utils.toolbars.toolbar import ModularToolBar
from bec_widgets.utils.ui_loader import UILoader
from bec_widgets.widgets.containers.auto_update.auto_updates import AutoUpdates
from bec_widgets.widgets.containers.dock.dock_area import BECDockArea
from bec_widgets.widgets.containers.main_window.main_window import BECMainWindow, UILaunchWindow
from bec_widgets.widgets.utility.visual.dark_mode_button.dark_mode_button import DarkModeButton
if TYPE_CHECKING: # pragma: no cover
from qtpy.QtCore import QObject
from bec_widgets.utils.bec_widget import BECWidget
logger = bec_logger.logger
MODULE_PATH = os.path.dirname(bec_widgets.__file__)
class LaunchTile(RoundedFrame):
DEFAULT_SIZE = (250, 300)
open_signal = Signal()
def __init__(
self,
parent: QObject | None = None,
icon_path: str | None = None,
top_label: str | None = None,
main_label: str | None = None,
description: str | None = None,
show_selector: bool = False,
tile_size: tuple[int, int] | None = None,
):
super().__init__(parent=parent, orientation="vertical")
# Provide a perinstance TILE_SIZE so the class can compute layout
if tile_size is None:
tile_size = self.DEFAULT_SIZE
self.tile_size = tile_size
self.icon_label = QLabel(parent=self)
self.icon_label.setFixedSize(100, 100)
self.icon_label.setScaledContents(True)
pixmap = QPixmap(icon_path)
if not pixmap.isNull():
size = 100
circular_pixmap = QPixmap(size, size)
circular_pixmap.fill(Qt.transparent)
painter = QPainter(circular_pixmap)
painter.setRenderHints(QPainter.Antialiasing, True)
path = QPainterPath()
path.addEllipse(0, 0, size, size)
painter.setClipPath(path)
pixmap = pixmap.scaled(size, size, Qt.KeepAspectRatio, Qt.SmoothTransformation)
painter.drawPixmap(0, 0, pixmap)
painter.end()
self.icon_label.setPixmap(circular_pixmap)
self.layout.addWidget(self.icon_label, alignment=Qt.AlignCenter)
# Top label
self.top_label = QLabel(top_label.upper())
font_top = self.top_label.font()
font_top.setPointSize(10)
self.top_label.setFont(font_top)
self.layout.addWidget(self.top_label, alignment=Qt.AlignCenter)
# Main label
self.main_label = QLabel(main_label)
# Desired default appearance
font_main = self.main_label.font()
font_main.setPointSize(14)
font_main.setBold(True)
self.main_label.setFont(font_main)
self.main_label.setAlignment(Qt.AlignCenter)
# Shrink font if the default would wrap on this platform / DPI
content_width = (
self.tile_size[0]
- self.layout.contentsMargins().left()
- self.layout.contentsMargins().right()
)
self._fit_label_to_width(self.main_label, content_width)
# Give every tile the same reserved height for the title so the
# description labels start at an identical yoffset.
self.main_label.setFixedHeight(QFontMetrics(self.main_label.font()).height() + 2)
self.layout.addWidget(self.main_label)
self.spacer_top = QSpacerItem(0, 10, QSizePolicy.Fixed, QSizePolicy.Fixed)
self.layout.addItem(self.spacer_top)
# Description
self.description_label = QLabel(description)
self.description_label.setWordWrap(True)
self.description_label.setAlignment(Qt.AlignCenter)
self.layout.addWidget(self.description_label)
# Selector
if show_selector:
self.selector = QComboBox(self)
self.layout.addWidget(self.selector)
else:
self.selector = None
self.spacer_bottom = QSpacerItem(0, 0, QSizePolicy.Fixed, QSizePolicy.Expanding)
self.layout.addItem(self.spacer_bottom)
# Action button
self.action_button = QPushButton("Open")
self.action_button.setStyleSheet(
"""
QPushButton {
background-color: #007AFF;
border: none;
padding: 8px 16px;
color: white;
border-radius: 6px;
font-weight: bold;
}
QPushButton:hover {
background-color: #005BB5;
}
"""
)
self.layout.addWidget(self.action_button, alignment=Qt.AlignCenter)
def _fit_label_to_width(self, label: QLabel, max_width: int, min_pt: int = 10):
"""
Fit the label text to the specified maximum width by adjusting the font size.
Args:
label(QLabel): The label to adjust.
max_width(int): The maximum width the label can occupy.
min_pt(int): The minimum font point size to use.
"""
font = label.font()
for pt in range(font.pointSize(), min_pt - 1, -1):
font.setPointSize(pt)
metrics = QFontMetrics(font)
if metrics.horizontalAdvance(label.text()) <= max_width:
label.setFont(font)
label.setWordWrap(False)
return
# If nothing fits, fall back to eliding
metrics = QFontMetrics(font)
label.setFont(font)
label.setWordWrap(False)
label.setText(metrics.elidedText(label.text(), Qt.ElideRight, max_width))
class LaunchWindow(BECMainWindow):
RPC = True
TILE_SIZE = (250, 300)
USER_ACCESS = ["show_launcher", "hide_launcher"]
def __init__(
self, parent=None, gui_id: str = None, window_title="BEC Launcher", *args, **kwargs
):
super().__init__(parent=parent, gui_id=gui_id, window_title=window_title, **kwargs)
self.app = QApplication.instance()
self.tiles: dict[str, LaunchTile] = {}
# Track the smallest mainlabel font size chosen so far
self._min_main_label_pt: int | None = None
# Toolbar
self.dark_mode_button = DarkModeButton(parent=self, toolbar=True)
self.toolbar = ModularToolBar(parent=self)
self.addToolBar(Qt.TopToolBarArea, self.toolbar)
self.spacer = QWidget(self)
self.spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.toolbar.addWidget(self.spacer)
self.toolbar.addWidget(self.dark_mode_button)
# Main Widget
self.central_widget = QWidget(self)
self.central_widget.layout = QHBoxLayout(self.central_widget)
self.setCentralWidget(self.central_widget)
self.register_tile(
name="dock_area",
icon_path=os.path.join(MODULE_PATH, "assets", "app_icons", "bec_widgets_icon.png"),
top_label="Get started",
main_label="BEC Dock Area",
description="Highly flexible and customizable dock area application with modular widgets.",
action_button=lambda: self.launch("dock_area"),
show_selector=False,
)
self.available_auto_updates: dict[str, type[AutoUpdates]] = (
self._update_available_auto_updates()
)
self.register_tile(
name="auto_update",
icon_path=os.path.join(MODULE_PATH, "assets", "app_icons", "auto_update.png"),
top_label="Get automated",
main_label="BEC Auto Update Dock Area",
description="Dock area with auto update functionality for BEC widgets plotting.",
action_button=self._open_auto_update,
show_selector=True,
selector_items=list(self.available_auto_updates.keys()) + ["Default"],
)
self.register_tile(
name="custom_ui_file",
icon_path=os.path.join(MODULE_PATH, "assets", "app_icons", "ui_loader_tile.png"),
top_label="Get customized",
main_label="Launch Custom UI File",
description="GUI application with custom UI file.",
action_button=self._open_custom_ui_file,
show_selector=False,
)
# plugin widgets
self.available_widgets: dict[str, type[BECWidget]] = get_all_plugin_widgets().as_dict()
if self.available_widgets:
plugin_repo_name = next(iter(self.available_widgets.values())).__module__.split(".")[0]
plugin_repo_name = plugin_repo_name.removesuffix("_bec").upper()
self.register_tile(
name="widget",
icon_path=os.path.join(
MODULE_PATH, "assets", "app_icons", "widget_launch_tile.png"
),
top_label="Get quickly started",
main_label=f"Launch a {plugin_repo_name} Widget",
description=f"GUI application with one widget from the {plugin_repo_name} repository.",
action_button=self._open_widget,
show_selector=True,
selector_items=list(self.available_widgets.keys()),
)
self._update_theme()
self.register = RPCRegister()
self.register.callbacks.append(self._turn_off_the_lights)
self.register.broadcast()
def register_tile(
self,
name: str,
icon_path: str | None = None,
top_label: str | None = None,
main_label: str | None = None,
description: str | None = None,
action_button: Callable | None = None,
show_selector: bool = False,
selector_items: list[str] | None = None,
):
"""
Register a tile in the launcher window.
Args:
name(str): The name of the tile.
icon_path(str): The path to the icon.
top_label(str): The top label of the tile.
main_label(str): The main label of the tile.
description(str): The description of the tile.
action_button(callable): The action to be performed when the button is clicked.
show_selector(bool): Whether to show a selector or not.
selector_items(list[str]): The items to be shown in the selector.
"""
tile = LaunchTile(
icon_path=icon_path,
top_label=top_label,
main_label=main_label,
description=description,
show_selector=show_selector,
tile_size=self.TILE_SIZE,
)
tile.setFixedWidth(self.TILE_SIZE[0])
tile.setMinimumHeight(self.TILE_SIZE[1])
tile.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.MinimumExpanding)
if action_button:
tile.action_button.clicked.connect(action_button)
if show_selector and selector_items:
tile.selector.addItems(selector_items)
self.central_widget.layout.addWidget(tile)
# keep all tiles' main labels at a unified point size
current_pt = tile.main_label.font().pointSize()
if self._min_main_label_pt is None or current_pt < self._min_main_label_pt:
# New global minimum shrink every existing tile to this size
self._min_main_label_pt = current_pt
for t in self.tiles.values():
f = t.main_label.font()
f.setPointSize(self._min_main_label_pt)
t.main_label.setFont(f)
t.main_label.setFixedHeight(QFontMetrics(f).height() + 2)
elif current_pt > self._min_main_label_pt:
# Tile is larger than global minimum shrink it to match
f = tile.main_label.font()
f.setPointSize(self._min_main_label_pt)
tile.main_label.setFont(f)
tile.main_label.setFixedHeight(QFontMetrics(f).height() + 2)
self.tiles[name] = tile
def launch(
self,
launch_script: str,
name: str | None = None,
geometry: tuple[int, int, int, int] | None = None,
**kwargs,
) -> QWidget | None:
"""Launch the specified script. If the launch script creates a QWidget, it will be
embedded in a BECMainWindow. If the launch script creates a BECMainWindow, it will be shown
as a separate window.
Args:
launch_script(str): The name of the script to be launched.
name(str): The name of the dock area.
geometry(tuple): The geometry parameters to be passed to the dock area.
Returns:
QWidget: The created dock area.
"""
from bec_widgets.applications import bw_launch
with RPCRegister.delayed_broadcast() as rpc_register:
existing_dock_areas = rpc_register.get_names_of_rpc_by_class_type(BECDockArea)
if name is not None:
if name in existing_dock_areas:
raise ValueError(
f"Name {name} must be unique for dock areas, but already exists: {existing_dock_areas}."
)
WidgetContainerUtils.raise_for_invalid_name(name)
else:
name = "dock_area"
name = WidgetContainerUtils.generate_unique_name(name, existing_dock_areas)
if launch_script is None:
launch_script = "dock_area"
if not isinstance(launch_script, str):
raise ValueError(f"Launch script must be a string, but got {type(launch_script)}.")
if launch_script == "custom_ui_file":
ui_file = kwargs.pop("ui_file", None)
if not ui_file:
return None
return self._launch_custom_ui_file(ui_file)
if launch_script == "auto_update":
auto_update = kwargs.pop("auto_update", None)
return self._launch_auto_update(auto_update)
if launch_script == "widget":
widget = kwargs.pop("widget", None)
if widget is None:
raise ValueError("Widget name must be provided.")
return self._launch_widget(widget)
launch = getattr(bw_launch, launch_script, None)
if launch is None:
raise ValueError(f"Launch script {launch_script} not found.")
result_widget = launch(name)
result_widget.resize(result_widget.minimumSizeHint())
# TODO Should we simply use the specified name as title here?
result_widget.window().setWindowTitle(f"BEC - {name}")
logger.info(f"Created new dock area: {name}")
if geometry is not None:
result_widget.setGeometry(*geometry)
if isinstance(result_widget, BECMainWindow):
result_widget.show()
else:
window = BECMainWindow()
window.setCentralWidget(result_widget)
window.setWindowTitle(f"BEC - {result_widget.objectName()}")
window.show()
return result_widget
def _launch_custom_ui_file(self, ui_file: str | None) -> BECMainWindow:
# Load the custom UI file
if ui_file is None:
raise ValueError("UI file must be provided for custom UI file launch.")
filename = os.path.basename(ui_file).split(".")[0]
WidgetContainerUtils.raise_for_invalid_name(filename)
tree = ET.parse(ui_file)
root = tree.getroot()
# Check if the top-level widget is a QMainWindow
widget = root.find("widget")
if widget is None:
raise ValueError("No widget found in the UI file.")
if widget.attrib.get("class") == "QMainWindow":
raise ValueError(
"Loading a QMainWindow from a UI file is currently not supported. "
"If you need this, please contact the BEC team or create a ticket on gitlab.psi.ch/bec/bec_widgets."
)
window = UILaunchWindow(object_name=filename)
QApplication.processEvents()
result_widget = UILoader(window).loader(ui_file)
window.setCentralWidget(result_widget)
window.setWindowTitle(f"BEC - {window.object_name}")
window.show()
logger.info(f"Object name of new instance: {result_widget.objectName()}, {window.gui_id}")
return window
def _launch_auto_update(self, auto_update: str) -> AutoUpdates:
if auto_update in self.available_auto_updates:
auto_update_cls = self.available_auto_updates[auto_update]
window = auto_update_cls()
else:
auto_update = "auto_updates"
window = AutoUpdates()
window.resize(window.minimumSizeHint())
QApplication.processEvents()
window.setWindowTitle(f"BEC - {window.objectName()}")
window.show()
return window
def _launch_widget(self, widget: type[BECWidget]) -> QWidget:
name = pascal_to_snake(widget.__name__)
WidgetContainerUtils.raise_for_invalid_name(name)
window = BECMainWindow()
widget_instance = widget(root_widget=True, object_name=name)
assert isinstance(widget_instance, QWidget)
QApplication.processEvents()
window.setCentralWidget(widget_instance)
window.resize(window.minimumSizeHint())
window.setWindowTitle(f"BEC - {widget_instance.objectName()}")
window.show()
return window
def apply_theme(self, theme: str):
"""
Change the theme of the application.
"""
for tile in self.tiles.values():
tile.apply_theme(theme)
super().apply_theme(theme)
def _open_auto_update(self):
"""
Open the auto update window.
"""
if self.tiles["auto_update"].selector is None:
auto_update = None
else:
auto_update = self.tiles["auto_update"].selector.currentText()
if auto_update == "Default":
auto_update = None
return self.launch("auto_update", auto_update=auto_update)
def _open_widget(self):
"""
Open a widget from the available widgets.
"""
if self.tiles["widget"].selector is None:
return
widget = self.tiles["widget"].selector.currentText()
if widget not in self.available_widgets:
raise ValueError(f"Widget {widget} not found in available widgets.")
return self.launch("widget", widget=self.available_widgets[widget])
@SafeSlot(popup_error=True)
def _open_custom_ui_file(self):
"""
Open a file dialog to select a custom UI file and launch it.
"""
ui_file, _ = QFileDialog.getOpenFileName(
self, "Select UI File", "", "UI Files (*.ui);;All Files (*)"
)
self.launch("custom_ui_file", ui_file=ui_file)
@staticmethod
def _update_available_auto_updates() -> dict[str, type[AutoUpdates]]:
"""
Load all available auto updates from the plugin repository.
"""
try:
auto_updates = get_plugin_auto_updates()
logger.info(f"Available auto updates: {auto_updates.keys()}")
except Exception as exc:
logger.error(f"Failed to load auto updates: {exc}")
return {}
return auto_updates
def show_launcher(self):
"""
Show the launcher window.
"""
self.show()
def hide_launcher(self):
"""
Hide the launcher window.
"""
self.hide()
def showEvent(self, event):
super().showEvent(event)
self.setFixedSize(self.size())
def _launcher_is_last_widget(self, connections: dict) -> bool:
"""
Check if the launcher is the last widget in the application.
"""
remaining_connections = [
connection for connection in connections.values() if connection.parent_id != self.gui_id
]
return len(remaining_connections) <= 4
def _turn_off_the_lights(self, connections: dict):
"""
If there is only one connection remaining, it is the launcher, so we show it.
Once the launcher is closed as the last window, we quit the application.
"""
if self._launcher_is_last_widget(connections):
self.show()
self.activateWindow()
self.raise_()
if self.app:
self.app.setQuitOnLastWindowClosed(True) # type: ignore
return
self.hide()
if self.app:
self.app.setQuitOnLastWindowClosed(False) # type: ignore
def closeEvent(self, event):
"""
Close the launcher window.
"""
connections = self.register.list_all_connections()
if self._launcher_is_last_widget(connections):
event.accept()
return
event.ignore()
self.hide()
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
launcher = LaunchWindow()
launcher.show()
sys.exit(app.exec())

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from bec_lib.utils.import_utils import lazy_import_from
# from .auto_updates import AutoUpdates, ScanInfo
# TODO: put back when Pydantic gets faster
AutoUpdates, ScanInfo = lazy_import_from(
"bec_widgets.cli.auto_updates", ("AutoUpdates", "ScanInfo")
)
from .client import BECDockArea, BECFigure

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from __future__ import annotations
from typing import TYPE_CHECKING
from pydantic import BaseModel
if TYPE_CHECKING:
from .client import BECFigure
class ScanInfo(BaseModel):
scan_id: str
scan_number: int
scan_name: str
scan_report_devices: list
monitored_devices: list
status: str
class AutoUpdates:
def __init__(self, figure: BECFigure, enabled: bool = True):
self.enabled = enabled
self.figure = figure
@staticmethod
def get_scan_info(msg) -> ScanInfo:
"""
Update the script with the given data.
"""
info = msg.info
status = msg.status
scan_id = msg.scan_id
scan_number = info.get("scan_number", 0)
scan_name = info.get("scan_name", "Unknown")
scan_report_devices = info.get("scan_report_devices", [])
monitored_devices = info.get("readout_priority", {}).get("monitored", [])
monitored_devices = [dev for dev in monitored_devices if dev not in scan_report_devices]
return ScanInfo(
scan_id=scan_id,
scan_number=scan_number,
scan_name=scan_name,
scan_report_devices=scan_report_devices,
monitored_devices=monitored_devices,
status=status,
)
def run(self, msg):
"""
Run the update function if enabled.
"""
if not self.enabled:
return
if msg.status != "open":
return
info = self.get_scan_info(msg)
self.handler(info)
@staticmethod
def get_selected_device(monitored_devices, selected_device):
"""
Get the selected device for the plot. If no device is selected, the first
device in the monitored devices list is selected.
"""
if selected_device:
return selected_device
if len(monitored_devices) > 0:
sel_device = monitored_devices[0]
return sel_device
return None
def handler(self, info: ScanInfo) -> None:
"""
Default update function.
"""
if info.scan_name == "line_scan" and info.scan_report_devices:
self.simple_line_scan(info)
return
if info.scan_name == "grid_scan" and info.scan_report_devices:
self.simple_grid_scan(info)
return
if info.scan_report_devices:
self.best_effort(info)
return
def simple_line_scan(self, info: ScanInfo) -> None:
"""
Simple line scan.
"""
dev_x = info.scan_report_devices[0]
dev_y = self.get_selected_device(info.monitored_devices, self.figure.selected_device)
if not dev_y:
return
self.figure.clear_all()
plt = self.figure.plot(dev_x, dev_y)
plt.set(title=f"Scan {info.scan_number}", x_label=dev_x, y_label=dev_y)
def simple_grid_scan(self, info: ScanInfo) -> None:
"""
Simple grid scan.
"""
dev_x = info.scan_report_devices[0]
dev_y = info.scan_report_devices[1]
dev_z = self.get_selected_device(info.monitored_devices, self.figure.selected_device)
self.figure.clear_all()
plt = self.figure.plot(dev_x, dev_y, dev_z, label=f"Scan {info.scan_number}")
plt.set(title=f"Scan {info.scan_number}", x_label=dev_x, y_label=dev_y)
def best_effort(self, info: ScanInfo) -> None:
"""
Best effort scan.
"""
dev_x = info.scan_report_devices[0]
dev_y = self.get_selected_device(info.monitored_devices, self.figure.selected_device)
if not dev_y:
return
self.figure.clear_all()
plt = self.figure.plot(dev_x, dev_y, label=f"Scan {info.scan_number}")
plt.set(title=f"Scan {info.scan_number}", x_label=dev_x, y_label=dev_y)

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"""Client utilities for the BEC GUI."""
from __future__ import annotations
import json
import importlib
import importlib.metadata as imd
import os
import select
import subprocess
import sys
import threading
import time
from contextlib import contextmanager
from threading import Lock
from typing import TYPE_CHECKING, Literal, TypeAlias, cast
import uuid
from functools import wraps
from typing import TYPE_CHECKING
from bec_lib.endpoints import MessageEndpoints
from bec_lib.logger import bec_logger
from bec_lib.utils.import_utils import lazy_import_from
from rich.console import Console
from rich.table import Table
from bec_lib.utils.import_utils import isinstance_based_on_class_name, lazy_import, lazy_import_from
from qtpy.QtCore import QCoreApplication
import bec_widgets.cli.client as client
from bec_widgets.cli.rpc.rpc_base import RPCBase, RPCReference
from bec_widgets.utils.serialization import register_serializer_extension
if TYPE_CHECKING: # pragma: no cover
from bec_lib.messages import GUIRegistryStateMessage
else:
GUIRegistryStateMessage = lazy_import_from("bec_lib.messages", "GUIRegistryStateMessage")
if TYPE_CHECKING:
from bec_lib.device import DeviceBase
logger = bec_logger.logger
IGNORE_WIDGETS = ["LaunchWindow"]
RegistryState: TypeAlias = dict[
Literal["gui_id", "name", "widget_class", "config", "__rpc__", "container_proxy"],
str | bool | dict,
]
# pylint: disable=redefined-outer-scope
messages = lazy_import("bec_lib.messages")
# from bec_lib.connector import MessageObject
MessageObject = lazy_import_from("bec_lib.connector", ("MessageObject",))
BECDispatcher = lazy_import_from("bec_widgets.utils.bec_dispatcher", ("BECDispatcher",))
def _filter_output(output: str) -> str:
def rpc_call(func):
"""
Filter out the output from the process.
A decorator for calling a function on the server.
Args:
func: The function to call.
Returns:
The result of the function call.
"""
if "IMKClient" in output:
# only relevant on macOS
# see https://discussions.apple.com/thread/255761734?sortBy=rank
return ""
return output
def _get_output(process, logger) -> None:
log_func = {process.stdout: logger.debug, process.stderr: logger.error}
stream_buffer = {process.stdout: [], process.stderr: []}
try:
os.set_blocking(process.stdout.fileno(), False)
os.set_blocking(process.stderr.fileno(), False)
while process.poll() is None:
readylist, _, _ = select.select([process.stdout, process.stderr], [], [], 1)
for stream in (process.stdout, process.stderr):
buf = stream_buffer[stream]
if stream in readylist:
buf.append(stream.read(4096))
output, _, remaining = "".join(buf).rpartition("\n")
output = _filter_output(output)
if output:
log_func[stream](output)
buf.clear()
buf.append(remaining)
except Exception as e:
logger.error(f"Error reading process output: {str(e)}")
def _start_plot_process(
gui_id: str,
gui_class_id: str,
config: dict | str,
gui_class: str = "dock_area",
logger=None, # FIXME change gui_class back to "launcher" later
) -> tuple[subprocess.Popen[str], threading.Thread | None]:
"""
Start the plot in a new process.
Logger must be a logger object with "debug" and "error" functions,
or it can be left to "None" as default. None means output from the
process will not be captured.
"""
# pylint: disable=subprocess-run-check
command = [
"bec-gui-server",
"--id",
gui_id,
"--gui_class",
gui_class,
"--gui_class_id",
gui_class_id,
"--hide",
]
if config:
if isinstance(config, dict):
config = json.dumps(config)
command.extend(["--config", str(config)])
env_dict = os.environ.copy()
env_dict["PYTHONUNBUFFERED"] = "1"
if logger is None:
stdout_redirect = subprocess.DEVNULL
stderr_redirect = subprocess.DEVNULL
else:
stdout_redirect = subprocess.PIPE
stderr_redirect = subprocess.PIPE
process = subprocess.Popen(
command,
text=True,
start_new_session=True,
stdout=stdout_redirect,
stderr=stderr_redirect,
env=env_dict,
)
if logger is None:
process_output_processing_thread = None
else:
process_output_processing_thread = threading.Thread(
target=_get_output, args=(process, logger)
)
process_output_processing_thread.start()
return process, process_output_processing_thread
class RepeatTimer(threading.Timer):
"""RepeatTimer class."""
def run(self):
while not self.finished.wait(self.interval):
self.function(*self.args, **self.kwargs)
# pylint: disable=protected-access
@contextmanager
def wait_for_server(client: BECGuiClient):
"""Context manager to wait for the server to start."""
timeout = client._startup_timeout
if not timeout:
if client._gui_is_alive():
# there is hope, let's wait a bit
timeout = 1
else:
@wraps(func)
def wrapper(self, *args, **kwargs):
# we could rely on a strict type check here, but this is more flexible
# moreover, it would anyway crash for objects...
out = []
for arg in args:
if hasattr(arg, "name"):
arg = arg.name
out.append(arg)
args = tuple(out)
for key, val in kwargs.items():
if hasattr(val, "name"):
kwargs[key] = val.name
if not self.gui_is_alive():
raise RuntimeError("GUI is not alive")
try:
if client._gui_started_event.wait(timeout=timeout):
client._gui_started_timer.cancel()
client._gui_started_timer.join()
else:
raise TimeoutError("Could not connect to GUI server")
finally:
# after initial waiting period, do not wait so much any more
# (only relevant if GUI didn't start)
client._startup_timeout = 0
yield
return self._run_rpc(func.__name__, *args, **kwargs)
return wrapper
class WidgetNameSpace:
def __repr__(self):
console = Console()
table = Table(title="Available widgets for BEC CLI usage")
table.add_column("Widget Name", justify="left", style="magenta")
table.add_column("Description", justify="left")
for attr, value in self.__dict__.items():
docs = value.__doc__
docs = docs if docs else "No description available"
table.add_row(attr, docs)
console.print(table)
return ""
class AvailableWidgetsNamespace:
"""Namespace for available widgets in the BEC GUI."""
def __init__(self):
for widget in client.Widgets:
name = widget.value
if name in IGNORE_WIDGETS:
continue
setattr(self, name, name)
def __repr__(self):
console = Console()
table = Table(title="Available widgets for BEC CLI usage")
table.add_column("Widget Name", justify="left", style="magenta")
table.add_column("Description", justify="left")
for attr_name, _ in self.__dict__.items():
docs = getattr(client, attr_name).__doc__
docs = docs if docs else "No description available"
table.add_row(attr_name, docs if len(docs.strip()) > 0 else "No description available")
console.print(table)
return ""
class BECGuiClient(RPCBase):
"""BEC GUI client class. Container for GUI applications within Python."""
class BECGuiClientMixin:
def __init__(self, **kwargs) -> None:
super().__init__(**kwargs)
self._lock = Lock()
self._anchor_widget = "launcher"
self._killed = False
self._top_level: dict[str, RPCReference] = {}
self._startup_timeout = 0
self._gui_started_timer = None
self._gui_started_event = threading.Event()
self._process = None
self._process_output_processing_thread = None
self._server_registry: dict[str, RegistryState] = {}
self._ipython_registry: dict[str, RPCReference] = {}
self.available_widgets = AvailableWidgetsNamespace()
register_serializer_extension()
self.update_script = self._get_update_script()
self._target_endpoint = MessageEndpoints.scan_status()
self._selected_device = None
self.stderr_output = []
####################
#### Client API ####
####################
def _get_update_script(self) -> AutoUpdates:
eps = imd.entry_points(group="bec.widgets.auto_updates")
for ep in eps:
if ep.name == "plugin_widgets_update":
return ep.load()(figure=self)
return None
@property
def launcher(self) -> RPCBase:
"""The launcher object."""
return RPCBase(gui_id=f"{self._gui_id}:launcher", parent=self, object_name="launcher")
def selected_device(self):
"""
Selected device for the plot.
"""
return self._selected_device
def connect_to_gui_server(self, gui_id: str) -> None:
"""Connect to a GUI server"""
# Unregister the old callback
self._client.connector.unregister(
MessageEndpoints.gui_registry_state(self._gui_id), cb=self._handle_registry_update
)
self._gui_id = gui_id
@selected_device.setter
def selected_device(self, device: str | DeviceBase):
if isinstance_based_on_class_name(device, "bec_lib.device.DeviceBase"):
self._selected_device = device.name
elif isinstance(device, str):
self._selected_device = device
else:
raise ValueError("Device must be a string or a device object")
# reset the namespace
self._update_dynamic_namespace({})
self._server_registry = {}
self._top_level = {}
self._ipython_registry = {}
# Register the new callback
def _start_update_script(self) -> None:
self._client.connector.register(
MessageEndpoints.gui_registry_state(self._gui_id),
cb=self._handle_registry_update,
parent=self,
from_start=True,
self._target_endpoint, cb=self._handle_msg_update, parent=self
)
@property
def windows(self) -> dict:
"""Dictionary with dock areas in the GUI."""
return {widget.object_name: widget for widget in self._top_level.values()}
@property
def window_list(self) -> list:
"""List with dock areas in the GUI."""
return list(self._top_level.values())
def start(self, wait: bool = False) -> None:
"""Start the GUI server."""
return self._start(wait=wait)
def show(self):
"""Show the GUI window."""
if self._check_if_server_is_alive():
return self._show_all()
return self.start(wait=True)
def hide(self):
"""Hide the GUI window."""
return self._hide_all()
def new(
self,
name: str | None = None,
wait: bool = True,
geometry: tuple[int, int, int, int] | None = None,
launch_script: str = "dock_area",
**kwargs,
) -> client.BECDockArea:
"""Create a new top-level dock area.
Args:
name(str, optional): The name of the dock area. Defaults to None.
wait(bool, optional): Whether to wait for the server to start. Defaults to True.
geometry(tuple[int, int, int, int] | None): The geometry of the dock area (pos_x, pos_y, w, h)
Returns:
client.BECDockArea: The new dock area.
"""
if not self._check_if_server_is_alive():
self.start(wait=True)
if wait:
with wait_for_server(self):
widget = self.launcher._run_rpc(
"launch", launch_script=launch_script, name=name, geometry=geometry, **kwargs
) # pylint: disable=protected-access
return widget
widget = self.launcher._run_rpc(
"launch", launch_script=launch_script, name=name, geometry=geometry, **kwargs
) # pylint: disable=protected-access
return widget
def delete(self, name: str) -> None:
"""Delete a dock area.
Args:
name(str): The name of the dock area.
"""
widget = self.windows.get(name)
if widget is None:
raise ValueError(f"Dock area {name} not found.")
widget._run_rpc("close") # pylint: disable=protected-access
def delete_all(self) -> None:
"""Delete all dock areas."""
for widget_name in self.windows:
self.delete(widget_name)
def kill_server(self) -> None:
"""Kill the GUI server."""
# Unregister the registry state
self._killed = True
if self._gui_started_timer is not None:
self._gui_started_timer.cancel()
self._gui_started_timer.join()
if self._process is None:
return
if self._process:
logger.success("Stopping GUI...")
self._process.terminate()
if self._process_output_processing_thread:
self._process_output_processing_thread.join()
self._process.wait()
self._process = None
# Unregister the registry state
self._client.connector.unregister(
MessageEndpoints.gui_registry_state(self._gui_id), cb=self._handle_registry_update
)
# Remove all reference from top level
self._top_level.clear()
self._server_registry.clear()
def close(self):
"""Deprecated. Use kill_server() instead."""
# FIXME, deprecated in favor of kill, will be removed in the future
self.kill_server()
#########################
#### Private methods ####
#########################
def _check_if_server_is_alive(self):
"""Checks if the process is alive"""
if self._process is None:
return False
if self._process.poll() is not None:
return False
return True
def _gui_post_startup(self):
timeout = 60
# Wait for 'bec' gui to be registered, this may take some time
# After 60s timeout. Should this raise an exception on timeout?
while time.time() < time.time() + timeout:
if len(list(self._server_registry.keys())) < 2 or not hasattr(
self, self._anchor_widget
):
time.sleep(0.1)
else:
break
self._gui_started_event.set()
def _start_server(self, wait: bool = False) -> None:
"""
Start the GUI server, and execute callback when it is launched
"""
if self._process is None or self._process.poll() is not None:
logger.success("GUI starting...")
self._startup_timeout = 5
self._gui_started_event.clear()
self._process, self._process_output_processing_thread = _start_plot_process(
self._gui_id,
gui_class_id="bec",
config=self._client._service_config.config, # pylint: disable=protected-access
logger=logger,
)
def gui_started_callback(callback):
try:
if callable(callback):
callback()
finally:
threading.current_thread().cancel() # type: ignore
self._gui_started_timer = RepeatTimer(
0.5, lambda: self._gui_is_alive() and gui_started_callback(self._gui_post_startup)
)
self._gui_started_timer.start()
if wait:
self._gui_started_event.wait()
def _start(self, wait: bool = False) -> None:
self._killed = False
self._client.connector.register(
MessageEndpoints.gui_registry_state(self._gui_id),
cb=self._handle_registry_update,
parent=self,
)
return self._start_server(wait=wait)
@staticmethod
def _handle_registry_update(
msg: dict[str, GUIRegistryStateMessage], parent: BECGuiClient
) -> None:
# This was causing a deadlock during shutdown, not sure why.
# with self._lock:
self = parent
self._server_registry = cast(dict[str, RegistryState], msg["data"].state)
self._update_dynamic_namespace(self._server_registry)
def _handle_msg_update(msg: MessageObject, parent: BECGuiClientMixin) -> None:
if parent.update_script is not None:
# pylint: disable=protected-access
parent._update_script_msg_parser(msg.value)
def _do_show_all(self):
rpc_client = RPCBase(gui_id=f"{self._gui_id}:launcher", parent=self)
rpc_client._run_rpc("show") # pylint: disable=protected-access
for window in self._top_level.values():
window.show()
def _update_script_msg_parser(self, msg: messages.BECMessage) -> None:
if isinstance(msg, messages.ScanStatusMessage):
if not self.gui_is_alive():
return
self.update_script.run(msg)
def _show_all(self):
with wait_for_server(self):
return self._do_show_all()
def _hide_all(self):
with wait_for_server(self):
rpc_client = RPCBase(gui_id=f"{self._gui_id}:launcher", parent=self)
rpc_client._run_rpc("hide") # pylint: disable=protected-access
if not self._killed:
for window in self._top_level.values():
window.hide()
def _update_dynamic_namespace(self, server_registry: dict):
def show(self) -> None:
"""
Update the dynamic name space with the given server registry.
Setting the server registry to an empty dictionary will remove all widgets from the namespace.
Args:
server_registry (dict): The server registry
Show the figure.
"""
top_level_widgets: dict[str, RPCReference] = {}
for gui_id, state in server_registry.items():
widget = self._add_widget(state, self)
if widget is None:
# ignore widgets that are not supported
continue
# get all top-level widgets. These are widgets that have no parent
if not state["config"].get("parent_id"):
top_level_widgets[gui_id] = widget
if self._process is None or self._process.poll() is not None:
self._start_plot_process()
while not self.gui_is_alive():
print("Waiting for GUI to start...")
time.sleep(1)
remove_from_registry = []
for gui_id, widget in self._ipython_registry.items():
if gui_id not in server_registry:
remove_from_registry.append(gui_id)
for gui_id in remove_from_registry:
self._ipython_registry.pop(gui_id)
removed_widgets = [
widget.object_name for widget in self._top_level.values() if widget._is_deleted()
]
for widget_name in removed_widgets:
# the check is not strictly necessary, but better safe
# than sorry; who knows what the user has done
if hasattr(self, widget_name):
delattr(self, widget_name)
for gui_id, widget_ref in top_level_widgets.items():
setattr(self, widget_ref.object_name, widget_ref)
self._top_level = top_level_widgets
for widget in self._ipython_registry.values():
widget._refresh_references()
def _add_widget(self, state: dict, parent: object) -> RPCReference | None:
"""Add a widget to the namespace
Args:
state (dict): The state of the widget from the _server_registry.
parent (object): The parent object.
def close(self) -> None:
"""
object_name = state["object_name"]
gui_id = state["gui_id"]
if state["widget_class"] in IGNORE_WIDGETS:
Close the figure.
"""
if self._process is None:
return
widget_class = getattr(client, state["widget_class"], None)
if widget_class is None:
return
obj = self._ipython_registry.get(gui_id)
if obj is None:
widget = widget_class(gui_id=gui_id, object_name=object_name, parent=parent)
self._ipython_registry[gui_id] = widget
if self.gui_is_alive():
self._run_rpc("close", (), wait_for_rpc_response=True)
else:
widget = obj
obj = RPCReference(registry=self._ipython_registry, gui_id=gui_id)
return obj
self._run_rpc("close", (), wait_for_rpc_response=False)
self._process.terminate()
self._process_output_processing_thread.join()
self._process = None
self._client.shutdown()
def _start_plot_process(self) -> None:
"""
Start the plot in a new process.
"""
self._start_update_script()
# pylint: disable=subprocess-run-check
config = self._client._service_config.redis
monitor_module = importlib.import_module("bec_widgets.cli.server")
monitor_path = monitor_module.__file__
gui_class = self.__class__.__name__
command = [
sys.executable,
"-u",
monitor_path,
"--id",
self._gui_id,
"--config",
config,
"--gui_class",
gui_class,
]
self._process = subprocess.Popen(
command, text=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE
)
self._process_output_processing_thread = threading.Thread(target=self._get_output)
self._process_output_processing_thread.start()
def print_log(self) -> None:
"""
Print the log of the plot process.
"""
if self._process is None:
return
print("".join(self.stderr_output))
# Flush list
self.stderr_output.clear()
def _get_output(self) -> str:
try:
os.set_blocking(self._process.stdout.fileno(), False)
os.set_blocking(self._process.stderr.fileno(), False)
while self._process.poll() is None:
readylist, _, _ = select.select(
[self._process.stdout, self._process.stderr], [], [], 1
)
if self._process.stdout in readylist:
output = self._process.stdout.read(1024)
if output:
print(output, end="")
if self._process.stderr in readylist:
error_output = self._process.stderr.read(1024)
if error_output:
print(error_output, end="", file=sys.stderr)
self.stderr_output.append(error_output)
except Exception as e:
print(f"Error reading process output: {str(e)}")
if __name__ == "__main__": # pragma: no cover
from bec_lib.client import BECClient
from bec_lib.service_config import ServiceConfig
class RPCResponseTimeoutError(Exception):
"""Exception raised when an RPC response is not received within the expected time."""
try:
config = ServiceConfig()
bec_client = BECClient(config)
bec_client.start()
def __init__(self, request_id, timeout):
super().__init__(
f"RPC response not received within {timeout} seconds for request ID {request_id}"
)
# Test the client_utils.py module
gui = BECGuiClient()
gui.start(wait=True)
gui.new().new(widget="Waveform")
time.sleep(10)
finally:
gui.kill_server()
class RPCBase:
def __init__(self, gui_id: str = None, config: dict = None, parent=None) -> None:
self._client = BECDispatcher().client
self._config = config if config is not None else {}
self._gui_id = gui_id if gui_id is not None else str(uuid.uuid4())
self._parent = parent
super().__init__()
# print(f"RPCBase: {self._gui_id}")
def __repr__(self):
type_ = type(self)
qualname = type_.__qualname__
return f"<{qualname} object at {hex(id(self))}>"
@property
def _root(self):
"""
Get the root widget. This is the BECFigure widget that holds
the anchor gui_id.
"""
parent = self
# pylint: disable=protected-access
while parent._parent is not None:
parent = parent._parent
return parent
def _run_rpc(self, method, *args, wait_for_rpc_response=True, **kwargs):
"""
Run the RPC call.
Args:
method: The method to call.
args: The arguments to pass to the method.
wait_for_rpc_response: Whether to wait for the RPC response.
kwargs: The keyword arguments to pass to the method.
Returns:
The result of the RPC call.
"""
request_id = str(uuid.uuid4())
rpc_msg = messages.GUIInstructionMessage(
action=method,
parameter={"args": args, "kwargs": kwargs, "gui_id": self._gui_id},
metadata={"request_id": request_id},
)
# pylint: disable=protected-access
receiver = self._root._gui_id
self._client.connector.set_and_publish(MessageEndpoints.gui_instructions(receiver), rpc_msg)
if not wait_for_rpc_response:
return None
response = self._wait_for_response(request_id)
# get class name
if not response.content["accepted"]:
raise ValueError(response.content["message"]["error"])
msg_result = response.content["message"].get("result")
return self._create_widget_from_msg_result(msg_result)
def _create_widget_from_msg_result(self, msg_result):
if msg_result is None:
return None
if isinstance(msg_result, list):
return [self._create_widget_from_msg_result(res) for res in msg_result]
if isinstance(msg_result, dict):
if "__rpc__" not in msg_result:
return {
key: self._create_widget_from_msg_result(val) for key, val in msg_result.items()
}
cls = msg_result.pop("widget_class", None)
msg_result.pop("__rpc__", None)
if not cls:
return msg_result
cls = getattr(client, cls)
# print(msg_result)
return cls(parent=self, **msg_result)
return msg_result
def _wait_for_response(self, request_id: str, timeout: int = 5):
"""
Wait for the response from the server.
Args:
request_id(str): The request ID.
timeout(int): The timeout in seconds.
Returns:
The response from the server.
"""
start_time = time.time()
response = None
while response is None and self.gui_is_alive() and (time.time() - start_time) < timeout:
response = self._client.connector.get(
MessageEndpoints.gui_instruction_response(request_id)
)
QCoreApplication.processEvents() # keep UI responsive (and execute signals/slots)
if response is None and (time.time() - start_time) >= timeout:
raise RPCResponseTimeoutError(request_id, timeout)
return response
def gui_is_alive(self):
"""
Check if the GUI is alive.
"""
heart = self._client.connector.get(MessageEndpoints.gui_heartbeat(self._root._gui_id))
return heart is not None

View File

@@ -1,22 +1,10 @@
# pylint: disable=missing-module-docstring
from __future__ import annotations
import argparse
import importlib
import inspect
import os
import sys
from pathlib import Path
import black
import isort
from bec_lib.logger import bec_logger
from qtpy.QtCore import Property as QtProperty
from bec_widgets.utils.generate_designer_plugin import DesignerPluginGenerator, plugin_filenames
from bec_widgets.utils.plugin_utils import BECClassContainer, get_custom_classes
logger = bec_logger.logger
if sys.version_info >= (3, 11):
from typing import get_overloads
@@ -26,116 +14,30 @@ else:
"If you want to use the real function 'typing.get_overloads()', please use Python 3.11 or later."
)
def get_overloads(_obj):
"""
Dummy function for Python versions before 3.11.
"""
def get_overloads(obj):
# Dummy function for Python versions before 3.11
return []
class ClientGenerator:
def __init__(self, base=False):
self._base = base
base_imports = (
"""import enum
import inspect
import traceback
from functools import reduce
from operator import add
from typing import Literal, Optional
"""
if self._base
else "\n"
)
self.header = f"""# This file was automatically generated by generate_cli.py
# type: ignore \n
from __future__ import annotations
{base_imports}
from bec_lib.logger import bec_logger
from bec_widgets.cli.rpc.rpc_base import RPCBase, rpc_call
{"from bec_widgets.utils.bec_plugin_helper import get_all_plugin_widgets, get_plugin_client_module" if self._base else ""}
logger = bec_logger.logger
# pylint: skip-file"""
def __init__(self):
self.header = """# This file was automatically generated by generate_cli.py\n
from bec_widgets.cli.client_utils import rpc_call, RPCBase, BECGuiClientMixin
from typing import Literal, Optional, overload"""
self.content = ""
def generate_client(self, class_container: BECClassContainer):
def generate_client(self, published_classes: list):
"""
Generate the client for the published classes, skipping any classes
that have `RPC = False`.
Generate the client for the published classes.
Args:
class_container: The class container with the classes to generate the client for.
published_classes(list): The list of published classes (e.g. [BECWaveform1D, BECFigure]).
"""
# Filter out classes that explicitly have RPC=False
rpc_top_level_classes = [
cls for cls in class_container.rpc_top_level_classes if getattr(cls, "RPC", True)
]
rpc_top_level_classes.sort(key=lambda x: x.__name__)
connector_classes = [
cls for cls in class_container.connector_classes if getattr(cls, "RPC", True)
]
connector_classes.sort(key=lambda x: x.__name__)
self.write_client_enum(rpc_top_level_classes)
for cls in connector_classes:
logger.debug(f"generating RPC client class for {cls.__name__}")
for cls in published_classes:
self.content += "\n\n"
self.generate_content_for_class(cls)
def write_client_enum(self, published_classes: list[type]):
"""
Write the client enum to the content.
"""
if self._base:
self.content += """
class _WidgetsEnumType(str, enum.Enum):
\"\"\" Enum for the available widgets, to be generated programatically \"\"\"
...
"""
self.content += """
_Widgets = {
"""
for cls in published_classes:
self.content += f'"{cls.__name__}": "{cls.__name__}",\n '
self.content += """}
"""
if self._base:
self.content += """
try:
_plugin_widgets = get_all_plugin_widgets().as_dict()
plugin_client = get_plugin_client_module()
Widgets = _WidgetsEnumType("Widgets", {name: name for name in _plugin_widgets} | _Widgets)
if (_overlap := _Widgets.keys() & _plugin_widgets.keys()) != set():
for _widget in _overlap:
logger.warning(f"Detected duplicate widget {_widget} in plugin repo file: {inspect.getfile(_plugin_widgets[_widget])} !")
for plugin_name, plugin_class in inspect.getmembers(plugin_client, inspect.isclass):
if issubclass(plugin_class, RPCBase) and plugin_class is not RPCBase:
if plugin_name in globals():
conflicting_file = (
inspect.getfile(_plugin_widgets[plugin_name])
if plugin_name in _plugin_widgets
else f"{plugin_client}"
)
logger.warning(
f"Plugin widget {plugin_name} from {conflicting_file} conflicts with a built-in class!"
)
continue
if plugin_name not in _overlap:
globals()[plugin_name] = plugin_class
except ImportError as e:
logger.error(f"Failed loading plugins: \\n{reduce(add, traceback.format_exception(e))}")
"""
def generate_content_for_class(self, cls):
"""
Generate the content for the class.
@@ -145,53 +47,25 @@ except ImportError as e:
"""
class_name = cls.__name__
module = cls.__module__
if class_name == "BECDockArea":
# Generate the header
# self.header += f"""
# from {module} import {class_name}"""
# Generate the content
if cls.__name__ == "BECDockArea":
self.content += f"""
class {class_name}(RPCBase):"""
class {class_name}(RPCBase, BECGuiClientMixin):"""
else:
self.content += f"""
class {class_name}(RPCBase):"""
if cls.__doc__:
# We only want the first line of the docstring
# But skip the first line if it's a blank line
first_line = cls.__doc__.split("\n")[0]
if first_line:
class_docs = first_line
else:
class_docs = cls.__doc__.split("\n")[1]
self.content += f"""
\"\"\"{class_docs}\"\"\"
"""
if not cls.USER_ACCESS:
self.content += """...
"""
for method in cls.USER_ACCESS:
is_property_setter = False
obj = getattr(cls, method, None)
if obj is None:
obj = getattr(cls, method.split(".setter")[0], None)
is_property_setter = True
method = method.split(".setter")[0]
if obj is None:
raise AttributeError(
f"Method {method} not found in class {cls.__name__}. "
f"Please check the USER_ACCESS list."
)
if isinstance(obj, (property, QtProperty)):
# for the cli, we can map qt properties to regular properties
if is_property_setter:
self.content += f"""
@{method}.setter
@rpc_call"""
else:
self.content += """
obj = getattr(cls, method)
if isinstance(obj, property):
self.content += """
@property
@rpc_call"""
sig = str(inspect.signature(obj.fget))
doc = inspect.getdoc(obj.fget)
else:
@@ -223,101 +97,43 @@ class {class_name}(RPCBase):"""
# Combine header and content, then format with black
full_content = self.header + "\n" + self.content
try:
formatted_content = black.format_str(full_content, mode=black.Mode(line_length=100))
formatted_content = black.format_str(full_content, mode=black.FileMode(line_length=100))
except black.NothingChanged:
formatted_content = full_content
config = isort.Config(
profile="black",
line_length=100,
multi_line_output=3,
include_trailing_comma=False,
known_first_party=["bec_widgets"],
)
formatted_content = isort.code(formatted_content, config=config)
with open(file_name, "w", encoding="utf-8") as file:
file.write(formatted_content)
def main():
"""
Main entry point for the script, controlled by command line arguments.
"""
parser = argparse.ArgumentParser(description="Auto-generate the client for RPC widgets")
parser.add_argument(
"--target",
action="store",
type=str,
help="Which package to generate plugin files for. Should be installed in the local environment (example: my_plugin_repo)",
)
args = parser.parse_args()
if args.target is None:
logger.error(
"You must provide a target - for safety, the default of running this on bec_widgets core has been removed. To generate the client for bec_widgets, run `bw-generate-cli --target bec_widgets`"
)
return
logger.info(f"BEC Widget code generation tool started with args: {args}")
client_subdir = "cli" if args.target == "bec_widgets" else "widgets"
module_name = "bec_widgets" if args.target == "bec_widgets" else f"{args.target}.bec_widgets"
try:
module = importlib.import_module(module_name)
assert module.__file__ is not None
module_file = Path(module.__file__)
module_dir = module_file.parent if module_file.is_file() else module_file
except Exception as e:
logger.error(f"Failed to load module {module_name} for code generation: {e}")
return
client_path = module_dir / client_subdir / "client.py"
rpc_classes = get_custom_classes(module_name)
logger.info(f"Obtained classes with RPC objects: {rpc_classes!r}")
generator = ClientGenerator(base=module_name == "bec_widgets")
logger.info(f"Generating client file at {client_path}")
generator.generate_client(rpc_classes)
generator.write(str(client_path))
if module_name != "bec_widgets":
non_overwrite_classes = list(clsinfo.name for clsinfo in get_custom_classes("bec_widgets"))
logger.info(
f"Not writing plugins which would conflict with builtin classes: {non_overwrite_classes}"
)
else:
non_overwrite_classes = []
for cls in rpc_classes.plugins:
logger.info(f"Writing bec-designer plugin files for {cls.__name__}...")
if cls.__name__ in non_overwrite_classes:
logger.error(
f"Not writing plugin files for {cls.__name__} because a built-in widget with that name exists"
)
plugin = DesignerPluginGenerator(cls)
if not hasattr(plugin, "info"):
continue
def _exists(file: str):
return os.path.exists(os.path.join(plugin.info.base_path, file))
if any(_exists(file) for file in plugin_filenames(plugin.info.plugin_name_snake)):
logger.debug(
f"Skipping generation of extra plugin files for {plugin.info.plugin_name_snake} - at least one file out of 'plugin.py', 'pyproject', and 'register_{plugin.info.plugin_name_snake}.py' already exists."
)
continue
plugin.run()
if __name__ == "__main__": # pragma: no cover
import sys
import os
sys.argv = ["bw-generate-cli", "--target", "bec_widgets"]
main()
from bec_widgets.utils import BECConnector
from bec_widgets.widgets import BECDock, BECDockArea, BECFigure, SpiralProgressBar
from bec_widgets.widgets.figure.plots.image.image import BECImageShow
from bec_widgets.widgets.figure.plots.image.image_item import BECImageItem
from bec_widgets.widgets.figure.plots.motor_map.motor_map import BECMotorMap
from bec_widgets.widgets.figure.plots.plot_base import BECPlotBase
from bec_widgets.widgets.figure.plots.waveform.waveform import BECWaveform
from bec_widgets.widgets.figure.plots.waveform.waveform_curve import BECCurve
from bec_widgets.widgets.spiral_progress_bar.ring import Ring
current_path = os.path.dirname(__file__)
client_path = os.path.join(current_path, "client.py")
clss = [
BECPlotBase,
BECWaveform,
BECFigure,
BECCurve,
BECImageShow,
BECConnector,
BECImageItem,
BECMotorMap,
BECDock,
BECDockArea,
SpiralProgressBar,
Ring,
]
generator = ClientGenerator()
generator.generate_client(clss)
generator.write(client_path)

View File

@@ -1,308 +0,0 @@
from __future__ import annotations
import inspect
import threading
import uuid
from functools import wraps
from typing import TYPE_CHECKING, Any, cast
from bec_lib.client import BECClient
from bec_lib.endpoints import MessageEndpoints
from bec_lib.utils.import_utils import lazy_import, lazy_import_from
if TYPE_CHECKING: # pragma: no cover
from bec_lib import messages
from bec_lib.connector import MessageObject
import bec_widgets.cli.client as client
from bec_widgets.cli.client_utils import BECGuiClient
else:
client = lazy_import("bec_widgets.cli.client") # avoid circular import
messages = lazy_import("bec_lib.messages")
MessageObject = lazy_import_from("bec_lib.connector", ("MessageObject",))
# pylint: disable=protected-access
def rpc_call(func):
"""
A decorator for calling a function on the server.
Args:
func: The function to call.
Returns:
The result of the function call.
"""
@wraps(func)
def wrapper(self, *args, **kwargs):
# we could rely on a strict type check here, but this is more flexible
# moreover, it would anyway crash for objects...
caller_frame = inspect.currentframe().f_back # type: ignore
while caller_frame:
if "jedi" in caller_frame.f_globals:
# Jedi module is present, likely tab completion
# Do not run the RPC call
return None # func(*args, **kwargs)
caller_frame = caller_frame.f_back
out = []
for arg in args:
if hasattr(arg, "name"):
arg = arg.name
out.append(arg)
args = tuple(out)
for key, val in kwargs.items():
if hasattr(val, "name"):
kwargs[key] = val.name
if not self._root._gui_is_alive():
raise RuntimeError("GUI is not alive")
return self._run_rpc(func.__name__, *args, **kwargs)
return wrapper
class RPCResponseTimeoutError(Exception):
"""Exception raised when an RPC response is not received within the expected time."""
def __init__(self, request_id, timeout):
super().__init__(
f"RPC response not received within {timeout} seconds for request ID {request_id}"
)
class DeletedWidgetError(Exception): ...
def check_for_deleted_widget(func):
@wraps(func)
def wrapper(self, *args, **kwargs):
if self._gui_id not in self._registry:
raise DeletedWidgetError(f"Widget with gui_id {self._gui_id} has been deleted")
return func(self, *args, **kwargs)
return wrapper
class RPCReference:
def __init__(self, registry: dict, gui_id: str) -> None:
self._registry = registry
self._gui_id = gui_id
self.object_name = self._registry[self._gui_id].object_name
@check_for_deleted_widget
def __getattr__(self, name):
if name in ["_registry", "_gui_id", "_is_deleted", "object_name"]:
return super().__getattribute__(name)
return self._registry[self._gui_id].__getattribute__(name)
def __setattr__(self, name, value):
if name in ["_registry", "_gui_id", "_is_deleted", "object_name"]:
return super().__setattr__(name, value)
if self._gui_id not in self._registry:
raise DeletedWidgetError(f"Widget with gui_id {self._gui_id} has been deleted")
self._registry[self._gui_id].__setattr__(name, value)
def __repr__(self):
if self._gui_id not in self._registry:
return f"<Deleted widget with gui_id {self._gui_id}>"
return self._registry[self._gui_id].__repr__()
def __str__(self):
if self._gui_id not in self._registry:
return f"<Deleted widget with gui_id {self._gui_id}>"
return self._registry[self._gui_id].__str__()
def __dir__(self):
if self._gui_id not in self._registry:
return []
return self._registry[self._gui_id].__dir__()
def _is_deleted(self) -> bool:
return self._gui_id not in self._registry
class RPCBase:
def __init__(
self,
gui_id: str | None = None,
config: dict | None = None,
object_name: str | None = None,
parent=None,
**kwargs,
) -> None:
self._client = BECClient() # BECClient is a singleton; here, we simply get the instance
self._config = config if config is not None else {}
self._gui_id = gui_id if gui_id is not None else str(uuid.uuid4())[:5]
self.object_name = object_name if object_name is not None else str(uuid.uuid4())[:5]
self._parent = parent
self._msg_wait_event = threading.Event()
self._rpc_response = None
super().__init__()
self._rpc_references: dict[str, str] = {}
def __repr__(self):
type_ = type(self)
qualname = type_.__qualname__
return f"<{qualname} with name: {self.object_name}>"
def remove(self):
"""
Remove the widget.
"""
obj = self._root._server_registry.get(self._gui_id)
if obj is None:
raise ValueError(f"Widget {self._gui_id} not found.")
if proxy := obj.get("container_proxy"):
assert isinstance(proxy, str)
self._run_rpc("remove", gui_id=proxy)
return
self._run_rpc("remove")
@property
def _root(self) -> BECGuiClient:
"""
Get the root widget. This is the BECFigure widget that holds
the anchor gui_id.
"""
parent = self
# pylint: disable=protected-access
while parent._parent is not None:
parent = parent._parent
return parent # type: ignore
def _run_rpc(
self,
method,
*args,
wait_for_rpc_response=True,
timeout=5,
gui_id: str | None = None,
**kwargs,
) -> Any:
"""
Run the RPC call.
Args:
method: The method to call.
args: The arguments to pass to the method.
wait_for_rpc_response: Whether to wait for the RPC response.
timeout: The timeout for the RPC response.
gui_id: The GUI ID to use for the RPC call. If None, the default GUI ID is used.
kwargs: The keyword arguments to pass to the method.
Returns:
The result of the RPC call.
"""
request_id = str(uuid.uuid4())
rpc_msg = messages.GUIInstructionMessage(
action=method,
parameter={"args": args, "kwargs": kwargs, "gui_id": gui_id or self._gui_id},
metadata={"request_id": request_id},
)
# pylint: disable=protected-access
receiver = self._root._gui_id
if wait_for_rpc_response:
self._rpc_response = None
self._msg_wait_event.clear()
self._client.connector.register(
MessageEndpoints.gui_instruction_response(request_id),
cb=self._on_rpc_response,
parent=self,
)
self._client.connector.set_and_publish(MessageEndpoints.gui_instructions(receiver), rpc_msg)
if wait_for_rpc_response:
try:
finished = self._msg_wait_event.wait(timeout)
if not finished:
raise RPCResponseTimeoutError(request_id, timeout)
finally:
self._msg_wait_event.clear()
self._client.connector.unregister(
MessageEndpoints.gui_instruction_response(request_id), cb=self._on_rpc_response
)
# we can assume that the response is a RequestResponseMessage, updated by
# the _on_rpc_response method
assert isinstance(self._rpc_response, messages.RequestResponseMessage)
if not self._rpc_response.accepted:
raise ValueError(self._rpc_response.message["error"])
msg_result = self._rpc_response.message.get("result")
self._rpc_response = None
return self._create_widget_from_msg_result(msg_result)
@staticmethod
def _on_rpc_response(msg_obj: MessageObject, parent: RPCBase) -> None:
msg = cast(messages.RequestResponseMessage, msg_obj.value)
parent._rpc_response = msg
parent._msg_wait_event.set()
def _create_widget_from_msg_result(self, msg_result):
if msg_result is None:
return None
if isinstance(msg_result, list):
return [self._create_widget_from_msg_result(res) for res in msg_result]
if isinstance(msg_result, dict):
if "__rpc__" not in msg_result:
return {
key: self._create_widget_from_msg_result(val) for key, val in msg_result.items()
}
cls = msg_result.pop("widget_class", None)
msg_result.pop("__rpc__", None)
if not cls:
return msg_result
cls = getattr(client, cls)
# The namespace of the object will be updated dynamically on the client side
# Therefore it is important to check if the object is already in the registry
# If yes, we return the reference to the object, otherwise we create a new object
# pylint: disable=protected-access
if msg_result["gui_id"] in self._root._ipython_registry:
return RPCReference(self._root._ipython_registry, msg_result["gui_id"])
ret = cls(parent=self, **msg_result)
self._root._ipython_registry[ret._gui_id] = ret
self._refresh_references()
obj = RPCReference(self._root._ipython_registry, ret._gui_id)
return obj
# return ret
return msg_result
def _gui_is_alive(self):
"""
Check if the GUI is alive.
"""
heart = self._client.connector.get(MessageEndpoints.gui_heartbeat(self._root._gui_id))
if heart is None:
return False
if heart.status == messages.BECStatus.RUNNING:
return True
return False
def _refresh_references(self):
"""
Refresh the references.
"""
with self._root._lock:
references = {}
for key, val in self._root._server_registry.items():
parent_id = val["config"].get("parent_id")
if parent_id == self._gui_id:
references[key] = {
"gui_id": val["config"]["gui_id"],
"object_name": val["object_name"],
}
removed_references = set(self._rpc_references.keys()) - set(references.keys())
for key in removed_references:
delattr(self, self._rpc_references[key]["object_name"])
self._rpc_references = references
for key, val in references.items():
setattr(
self,
val["object_name"],
RPCReference(self._root._ipython_registry, val["gui_id"]),
)

View File

@@ -1,189 +0,0 @@
from __future__ import annotations
from functools import wraps
from threading import RLock
from typing import TYPE_CHECKING, Callable
from weakref import WeakValueDictionary
from bec_lib.logger import bec_logger
from qtpy.QtCore import QObject
if TYPE_CHECKING: # pragma: no cover
from bec_widgets.utils.bec_connector import BECConnector
from bec_widgets.utils.bec_widget import BECWidget
from bec_widgets.widgets.containers.dock.dock import BECDock
from bec_widgets.widgets.containers.dock.dock_area import BECDockArea
logger = bec_logger.logger
def broadcast_update(func):
"""
Decorator to broadcast updates to the RPCRegister whenever a new RPC object is added or removed.
If class attribute _skip_broadcast is set to True, the broadcast will be skipped
"""
@wraps(func)
def wrapper(self, *args, **kwargs):
result = func(self, *args, **kwargs)
self.broadcast()
return result
return wrapper
class RPCRegister:
"""
A singleton class that keeps track of all the RPC objects registered in the system for CLI usage.
"""
_instance = None
_initialized = False
def __new__(cls, *args, **kwargs):
if cls._instance is None:
cls._instance = super(RPCRegister, cls).__new__(cls)
cls._initialized = False
return cls._instance
def __init__(self):
if self._initialized:
return
self._rpc_register = WeakValueDictionary()
self._broadcast_on_hold = RPCRegisterBroadcast(self)
self._lock = RLock()
self._skip_broadcast = False
self._initialized = True
self.callbacks = []
@classmethod
def delayed_broadcast(cls):
"""
Delay the broadcast of the update to all the callbacks.
"""
register = cls()
return register._broadcast_on_hold
@broadcast_update
def add_rpc(self, rpc: BECConnector):
"""
Add an RPC object to the register.
Args:
rpc(QObject): The RPC object to be added to the register.
"""
if not hasattr(rpc, "gui_id"):
raise ValueError("RPC object must have a 'gui_id' attribute.")
self._rpc_register[rpc.gui_id] = rpc
@broadcast_update
def remove_rpc(self, rpc: BECConnector):
"""
Remove an RPC object from the register.
Args:
rpc(str): The RPC object to be removed from the register.
"""
if not hasattr(rpc, "gui_id"):
raise ValueError(f"RPC object {rpc} must have a 'gui_id' attribute.")
self._rpc_register.pop(rpc.gui_id, None)
def get_rpc_by_id(self, gui_id: str) -> QObject | None:
"""
Get an RPC object by its ID.
Args:
gui_id(str): The ID of the RPC object to be retrieved.
Returns:
QObject | None: The RPC object with the given ID or None
"""
rpc_object = self._rpc_register.get(gui_id, None)
return rpc_object
def list_all_connections(self) -> dict:
"""
List all the registered RPC objects.
Returns:
dict: A dictionary containing all the registered RPC objects.
"""
with self._lock:
connections = dict(self._rpc_register)
return connections
def get_names_of_rpc_by_class_type(
self, cls: type[BECWidget] | type[BECConnector] | type[BECDock] | type[BECDockArea]
) -> list[str]:
"""Get all the names of the widgets.
Args:
cls(BECWidget | BECConnector): The class of the RPC object to be retrieved.
"""
# This retrieves any rpc objects that are subclass of BECWidget,
# i.e. curve and image items are excluded
widgets = [rpc for rpc in self._rpc_register.values() if isinstance(rpc, cls)]
return [widget.object_name for widget in widgets]
def broadcast(self):
"""
Broadcast the update to all the callbacks.
"""
if self._skip_broadcast:
return
connections = self.list_all_connections()
for callback in self.callbacks:
callback(connections)
def object_is_registered(self, obj: BECConnector) -> bool:
"""
Check if an object is registered in the RPC register.
Args:
obj(QObject): The object to check.
Returns:
bool: True if the object is registered, False otherwise.
"""
return obj.gui_id in self._rpc_register
def add_callback(self, callback: Callable[[dict], None]):
"""
Add a callback that will be called whenever the registry is updated.
Args:
callback(Callable[[dict], None]): The callback to be added. It should accept a dictionary of all the
registered RPC objects as an argument.
"""
self.callbacks.append(callback)
@classmethod
def reset_singleton(cls):
"""
Reset the singleton instance.
"""
cls._instance = None
cls._initialized = False
class RPCRegisterBroadcast:
"""Context manager for RPCRegister broadcast."""
def __init__(self, rpc_register: RPCRegister) -> None:
self.rpc_register = rpc_register
self._call_depth = 0
def __enter__(self):
"""Enter the context manager"""
self._call_depth += 1 # Needed for nested calls
self.rpc_register._skip_broadcast = True
return self.rpc_register
def __exit__(self, *exc):
"""Exit the context manager"""
self._call_depth -= 1 # Remove nested calls
if self._call_depth == 0: # The Last one to exit is responsible for broadcasting
self.rpc_register._skip_broadcast = False
self.rpc_register.broadcast()

View File

@@ -1,56 +0,0 @@
from __future__ import annotations
from bec_widgets.cli.client_utils import IGNORE_WIDGETS
from bec_widgets.utils.bec_plugin_helper import get_all_plugin_widgets
from bec_widgets.utils.bec_widget import BECWidget
from bec_widgets.utils.plugin_utils import get_custom_classes
class RPCWidgetHandler:
"""Handler class for creating widgets from RPC messages."""
def __init__(self):
self._widget_classes = None
@property
def widget_classes(self) -> dict[str, type[BECWidget]]:
"""
Get the available widget classes.
Returns:
dict: The available widget classes.
"""
if self._widget_classes is None:
self.update_available_widgets()
return self._widget_classes # type: ignore
def update_available_widgets(self):
"""
Update the available widgets.
Returns:
None
"""
self._widget_classes = (
get_custom_classes("bec_widgets") + get_all_plugin_widgets()
).as_dict(IGNORE_WIDGETS)
def create_widget(self, widget_type, **kwargs) -> BECWidget:
"""
Create a widget from an RPC message.
Args:
widget_type(str): The type of the widget.
name (str): The name of the widget.
**kwargs: The keyword arguments for the widget.
Returns:
widget(BECWidget): The created widget.
"""
widget_class = self.widget_classes.get(widget_type) # type: ignore
if widget_class:
return widget_class(**kwargs)
raise ValueError(f"Unknown widget type: {widget_type}")
widget_handler = RPCWidgetHandler()

View File

@@ -0,0 +1,80 @@
from threading import Lock
from weakref import WeakValueDictionary
from qtpy.QtCore import QObject
class RPCRegister:
"""
A singleton class that keeps track of all the RPC objects registered in the system for CLI usage.
"""
_instance = None
_initialized = False
_lock = Lock()
def __new__(cls, *args, **kwargs):
if cls._instance is None:
cls._instance = super(RPCRegister, cls).__new__(cls)
cls._initialized = False
return cls._instance
def __init__(self):
if self._initialized:
return
self._rpc_register = WeakValueDictionary()
self._initialized = True
def add_rpc(self, rpc: QObject):
"""
Add an RPC object to the register.
Args:
rpc(QObject): The RPC object to be added to the register.
"""
if not hasattr(rpc, "gui_id"):
raise ValueError("RPC object must have a 'gui_id' attribute.")
self._rpc_register[rpc.gui_id] = rpc
def remove_rpc(self, rpc: str):
"""
Remove an RPC object from the register.
Args:
rpc(str): The RPC object to be removed from the register.
"""
if not hasattr(rpc, "gui_id"):
raise ValueError(f"RPC object {rpc} must have a 'gui_id' attribute.")
self._rpc_register.pop(rpc.gui_id, None)
def get_rpc_by_id(self, gui_id: str) -> QObject:
"""
Get an RPC object by its ID.
Args:
gui_id(str): The ID of the RPC object to be retrieved.
Returns:
QObject: The RPC object with the given ID.
"""
rpc_object = self._rpc_register.get(gui_id, None)
return rpc_object
def list_all_connections(self) -> dict:
"""
List all the registered RPC objects.
Returns:
dict: A dictionary containing all the registered RPC objects.
"""
with self._lock:
connections = dict(self._rpc_register)
return connections
@classmethod
def reset_singleton(cls):
"""
Reset the singleton instance.
"""
cls._instance = None
cls._initialized = False

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@@ -0,0 +1,26 @@
from bec_widgets.utils import BECConnector
from bec_widgets.widgets.figure import BECFigure
from bec_widgets.widgets.spiral_progress_bar.spiral_progress_bar import SpiralProgressBar
class RPCWidgetHandler:
"""Handler class for creating widgets from RPC messages."""
widget_classes = {"BECFigure": BECFigure, "SpiralProgressBar": SpiralProgressBar}
@staticmethod
def create_widget(widget_type, **kwargs) -> BECConnector:
"""
Create a widget from an RPC message.
Args:
widget_type(str): The type of the widget.
**kwargs: The keyword arguments for the widget.
Returns:
widget(BECConnector): The created widget.
"""
widget_class = RPCWidgetHandler.widget_classes.get(widget_type)
if widget_class:
return widget_class(**kwargs)
raise ValueError(f"Unknown widget type: {widget_type}")

View File

@@ -1,181 +1,168 @@
from __future__ import annotations
import inspect
from typing import Union
import argparse
import json
import os
import signal
import sys
from contextlib import redirect_stderr, redirect_stdout
from bec_lib.endpoints import MessageEndpoints
from bec_lib.utils.import_utils import lazy_import
from qtpy.QtCore import QTimer
from bec_lib.logger import bec_logger
from bec_lib.service_config import ServiceConfig
from qtpy.QtCore import QSize, Qt
from qtpy.QtGui import QIcon
from qtpy.QtWidgets import QApplication
from bec_widgets.cli.rpc_register import RPCRegister
from bec_widgets.utils import BECDispatcher
from bec_widgets.utils.bec_connector import BECConnector
from bec_widgets.widgets.dock.dock_area import BECDockArea
from bec_widgets.widgets.figure import BECFigure
import bec_widgets
from bec_widgets.applications.launch_window import LaunchWindow
from bec_widgets.cli.rpc.rpc_register import RPCRegister
from bec_widgets.utils.bec_dispatcher import BECDispatcher
logger = bec_logger.logger
MODULE_PATH = os.path.dirname(bec_widgets.__file__)
messages = lazy_import("bec_lib.messages")
class SimpleFileLikeFromLogOutputFunc:
def __init__(self, log_func):
self._log_func = log_func
self._buffer = []
class BECWidgetsCLIServer:
def write(self, buffer):
self._buffer.append(buffer)
def __init__(
self,
gui_id: str = None,
dispatcher: BECDispatcher = None,
client=None,
config=None,
gui_class: Union["BECFigure", "BECDockArea"] = BECFigure,
) -> None:
self.dispatcher = BECDispatcher(config=config) if dispatcher is None else dispatcher
self.client = self.dispatcher.client if client is None else client
self.client.start()
self.gui_id = gui_id
self.gui = gui_class(gui_id=self.gui_id)
self.rpc_register = RPCRegister()
self.rpc_register.add_rpc(self.gui)
def flush(self):
lines, _, remaining = "".join(self._buffer).rpartition("\n")
if lines:
self._log_func(lines)
self._buffer = [remaining]
@property
def encoding(self):
return "utf-8"
def close(self):
return
class GUIServer:
"""
This class is used to start the BEC GUI and is the main entry point for launching BEC Widgets in a subprocess.
"""
def __init__(self, args):
self.config = args.config
self.gui_id = args.id
self.gui_class = args.gui_class
self.gui_class_id = args.gui_class_id
self.hide = args.hide
self.app: QApplication | None = None
self.launcher_window: LaunchWindow | None = None
self.dispatcher: BECDispatcher | None = None
def start(self):
"""
Start the GUI server.
"""
bec_logger.level = bec_logger.LOGLEVEL.INFO
if self.hide:
# pylint: disable=protected-access
bec_logger._stderr_log_level = bec_logger.LOGLEVEL.ERROR
bec_logger._update_sinks()
with redirect_stdout(SimpleFileLikeFromLogOutputFunc(logger.info)): # type: ignore
with redirect_stderr(SimpleFileLikeFromLogOutputFunc(logger.error)): # type: ignore
self._run()
def _get_service_config(self) -> ServiceConfig:
if self.config:
try:
config = json.loads(self.config)
service_config = ServiceConfig(config=config)
except (json.JSONDecodeError, TypeError):
service_config = ServiceConfig(config_path=config)
else:
# if no config is provided, use the default config
service_config = ServiceConfig()
return service_config
def _run(self):
"""
Run the GUI server.
"""
self.app = QApplication(sys.argv)
self.app.setApplicationName("BEC")
self.app.gui_id = self.gui_id # type: ignore
self.setup_bec_icon()
service_config = self._get_service_config()
self.dispatcher = BECDispatcher(config=service_config, gui_id=self.gui_id)
# self.dispatcher.start_cli_server(gui_id=self.gui_id)
self.launcher_window = LaunchWindow(gui_id=f"{self.gui_id}:launcher")
self.launcher_window.setAttribute(Qt.WA_ShowWithoutActivating) # type: ignore
self.app.aboutToQuit.connect(self.shutdown)
self.app.setQuitOnLastWindowClosed(False)
if self.gui_class:
# If the server is started with a specific gui class, we launch it.
# This will automatically hide the launcher.
self.launcher_window.launch(self.gui_class, name=self.gui_class_id)
def sigint_handler(*args):
# display message, for people to let it terminate gracefully
print("Caught SIGINT, exiting")
# Widgets should be all closed.
with RPCRegister.delayed_broadcast():
for widget in QApplication.instance().topLevelWidgets(): # type: ignore
widget.close()
if self.app:
self.app.quit()
signal.signal(signal.SIGINT, sigint_handler)
signal.signal(signal.SIGTERM, sigint_handler)
sys.exit(self.app.exec())
def setup_bec_icon(self):
"""
Set the BEC icon for the application
"""
if self.app is None:
return
icon = QIcon()
icon.addFile(
os.path.join(MODULE_PATH, "assets", "app_icons", "bec_widgets_icon.png"),
size=QSize(48, 48),
self.dispatcher.connect_slot(
self.on_rpc_update, MessageEndpoints.gui_instructions(self.gui_id)
)
self.app.setWindowIcon(icon)
def shutdown(self):
"""
Shutdown the GUI server.
"""
if self.dispatcher:
self.dispatcher.stop_cli_server()
self.dispatcher.disconnect_all()
# Setup QTimer for heartbeat
self._shutdown_event = False
self._heartbeat_timer = QTimer()
self._heartbeat_timer.timeout.connect(self.emit_heartbeat)
self._heartbeat_timer.start(200) # Emit heartbeat every 1 seconds
def on_rpc_update(self, msg: dict, metadata: dict):
request_id = metadata.get("request_id")
try:
obj = self.get_object_from_config(msg["parameter"])
method = msg["action"]
args = msg["parameter"].get("args", [])
kwargs = msg["parameter"].get("kwargs", {})
res = self.run_rpc(obj, method, args, kwargs)
except Exception as e:
print(e)
self.send_response(request_id, False, {"error": str(e)})
else:
self.send_response(request_id, True, {"result": res})
def send_response(self, request_id: str, accepted: bool, msg: dict):
self.client.connector.set_and_publish(
MessageEndpoints.gui_instruction_response(request_id),
messages.RequestResponseMessage(accepted=accepted, message=msg),
expire=60,
)
def get_object_from_config(self, config: dict):
gui_id = config.get("gui_id")
obj = self.rpc_register.get_rpc_by_id(gui_id)
if obj is None:
raise ValueError(f"Object with gui_id {gui_id} not found")
return obj
def run_rpc(self, obj, method, args, kwargs):
method_obj = getattr(obj, method)
# check if the method accepts args and kwargs
if not callable(method_obj):
res = method_obj
else:
sig = inspect.signature(method_obj)
if sig.parameters:
res = method_obj(*args, **kwargs)
else:
res = method_obj()
if isinstance(res, list):
res = [self.serialize_object(obj) for obj in res]
elif isinstance(res, dict):
res = {key: self.serialize_object(val) for key, val in res.items()}
else:
res = self.serialize_object(res)
return res
def serialize_object(self, obj):
if isinstance(obj, BECConnector):
return {
"gui_id": obj.gui_id,
"widget_class": obj.__class__.__name__,
"config": obj.config.model_dump(),
"__rpc__": True,
}
return obj
def emit_heartbeat(self):
if self._shutdown_event is False:
self.client.connector.set(
MessageEndpoints.gui_heartbeat(self.gui_id),
messages.StatusMessage(name=self.gui_id, status=1, info={}),
expire=10,
)
def shutdown(self): # TODO not sure if needed when cleanup is done at level of BECConnector
self._shutdown_event = True
self._heartbeat_timer.stop()
self.client.shutdown()
def main():
"""
Main entry point for subprocesses that start a GUI server.
"""
if __name__ == "__main__": # pragma: no cover
import argparse
import os
import sys
from qtpy.QtCore import QSize
from qtpy.QtGui import QIcon
from qtpy.QtWidgets import QApplication, QMainWindow
import bec_widgets
app = QApplication(sys.argv)
app.setApplicationName("BEC Figure")
module_path = os.path.dirname(bec_widgets.__file__)
icon = QIcon()
icon.addFile(os.path.join(module_path, "assets", "bec_widgets_icon.png"), size=QSize(48, 48))
app.setWindowIcon(icon)
win = QMainWindow()
win.setWindowTitle("BEC Widgets")
parser = argparse.ArgumentParser(description="BEC Widgets CLI Server")
parser.add_argument("--id", type=str, default="test", help="The id of the server")
parser.add_argument("--id", type=str, help="The id of the server")
parser.add_argument(
"--gui_class",
type=str,
help="Name of the gui class to be rendered. Possible values: \n- BECFigure\n- BECDockArea",
)
parser.add_argument(
"--gui_class_id",
type=str,
default="bec",
help="The id of the gui class that is added to the QApplication",
)
parser.add_argument("--config", type=str, help="Config file or config string.")
parser.add_argument("--hide", action="store_true", help="Hide on startup")
parser.add_argument("--config", type=str, help="Config to connect to redis.")
args = parser.parse_args()
server = GUIServer(args)
server.start()
if args.gui_class == "BECFigure":
gui_class = BECFigure
elif args.gui_class == "BECDockArea":
gui_class = BECDockArea
else:
print(
"Please specify a valid gui_class to run. Use -h for help."
"\n Starting with default gui_class BECFigure."
)
gui_class = BECFigure
server = BECWidgetsCLIServer(gui_id=args.id, config=args.config, gui_class=gui_class)
if __name__ == "__main__":
# import sys
gui = server.gui
win.setCentralWidget(gui)
win.resize(800, 600)
win.show()
# sys.argv = ["bec_widgets", "--gui_class", "MainWindow"]
main()
app.aboutToQuit.connect(server.shutdown)
sys.exit(app.exec())

View File

@@ -0,0 +1,9 @@
from .motor_movement import (
MotorControlApp,
MotorControlMap,
MotorControlPanel,
MotorControlPanelAbsolute,
MotorControlPanelRelative,
MotorCoordinateTable,
MotorThread,
)

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import json
import os
import threading
import h5py
import numpy as np
import pyqtgraph as pg
import zmq
from pyqtgraph.Qt import uic
from qtpy.QtCore import Signal as pyqtSignal
from qtpy.QtCore import Slot as pyqtSlot
from qtpy.QtGui import QKeySequence
from qtpy.QtWidgets import QDialog, QFileDialog, QFrame, QLabel, QShortcut, QVBoxLayout, QWidget
# from scipy.stats import multivariate_normal
class EigerPlot(QWidget):
update_signal = pyqtSignal()
def __init__(self, parent=None):
super().__init__(parent)
# pg.setConfigOptions(background="w", foreground="k", antialias=True)
current_path = os.path.dirname(__file__)
uic.loadUi(os.path.join(current_path, "eiger_plot.ui"), self)
# Set widow name
self.setWindowTitle("Eiger Plot")
self.hist_lims = None
self.mask = None
self.image = None
# UI
self.init_ui()
self.hook_signals()
self.key_bindings()
# ZMQ Consumer
self._zmq_consumer_exit_event = threading.Event()
self._zmq_consumer_thread = self.start_zmq_consumer()
def close(self):
super().close()
self._zmq_consumer_exit_event.set()
self._zmq_consumer_thread.join()
def init_ui(self):
# Create Plot and add ImageItem
self.plot_item = pg.PlotItem()
self.plot_item.setAspectLocked(True)
self.imageItem = pg.ImageItem()
self.plot_item.addItem(self.imageItem)
# Setting up histogram
self.hist = pg.HistogramLUTItem()
self.hist.setImageItem(self.imageItem)
self.hist.gradient.loadPreset("magma")
self.update_hist()
# Adding Items to Graphical Layout
self.glw.addItem(self.plot_item)
self.glw.addItem(self.hist)
def hook_signals(self):
# Buttons
# self.pushButton_test.clicked.connect(self.start_sim_stream)
self.pushButton_mask.clicked.connect(self.load_mask_dialog)
self.pushButton_delete_mask.clicked.connect(self.delete_mask)
self.pushButton_help.clicked.connect(self.show_help_dialog)
# SpinBoxes
self.doubleSpinBox_hist_min.valueChanged.connect(self.update_hist)
self.doubleSpinBox_hist_max.valueChanged.connect(self.update_hist)
# Signal/Slots
self.update_signal.connect(self.on_image_update)
def key_bindings(self):
# Key bindings for rotation
rotate_plus = QShortcut(QKeySequence("Ctrl+A"), self)
rotate_minus = QShortcut(QKeySequence("Ctrl+Z"), self)
self.comboBox_rotation.setToolTip("Increase rotation: Ctrl+A\nDecrease rotation: Ctrl+Z")
self.checkBox_transpose.setToolTip("Toggle transpose: Ctrl+T")
max_index = self.comboBox_rotation.count() - 1 # Maximum valid index
rotate_plus.activated.connect(
lambda: self.comboBox_rotation.setCurrentIndex(
min(self.comboBox_rotation.currentIndex() + 1, max_index)
)
)
rotate_minus.activated.connect(
lambda: self.comboBox_rotation.setCurrentIndex(
max(self.comboBox_rotation.currentIndex() - 1, 0)
)
)
# Key bindings for transpose
transpose = QShortcut(QKeySequence("Ctrl+T"), self)
transpose.activated.connect(self.checkBox_transpose.toggle)
FFT = QShortcut(QKeySequence("Ctrl+F"), self)
FFT.activated.connect(self.checkBox_FFT.toggle)
self.checkBox_FFT.setToolTip("Toggle FFT: Ctrl+F")
log = QShortcut(QKeySequence("Ctrl+L"), self)
log.activated.connect(self.checkBox_log.toggle)
self.checkBox_log.setToolTip("Toggle log: Ctrl+L")
mask = QShortcut(QKeySequence("Ctrl+M"), self)
mask.activated.connect(self.pushButton_mask.click)
self.pushButton_mask.setToolTip("Load mask: Ctrl+M")
delete_mask = QShortcut(QKeySequence("Ctrl+D"), self)
delete_mask.activated.connect(self.pushButton_delete_mask.click)
self.pushButton_delete_mask.setToolTip("Delete mask: Ctrl+D")
def update_hist(self):
self.hist_levels = [
self.doubleSpinBox_hist_min.value(),
self.doubleSpinBox_hist_max.value(),
]
self.hist.setLevels(min=self.hist_levels[0], max=self.hist_levels[1])
self.hist.setHistogramRange(
self.hist_levels[0] - 0.1 * self.hist_levels[0],
self.hist_levels[1] + 0.1 * self.hist_levels[1],
)
def load_mask_dialog(self):
options = QFileDialog.Options()
options |= QFileDialog.ReadOnly
file_name, _ = QFileDialog.getOpenFileName(
self, "Select Mask File", "", "H5 Files (*.h5);;All Files (*)", options=options
)
if file_name:
self.load_mask(file_name)
def load_mask(self, path):
try:
with h5py.File(path, "r") as f:
self.mask = f["data"][...]
if self.mask is not None:
# Set label to mask name without path
self.label_mask.setText(os.path.basename(path))
except KeyError as e:
# Update GUI with the error message
print(f"Error: {str(e)}")
def delete_mask(self):
self.mask = None
self.label_mask.setText("No Mask")
@pyqtSlot()
def on_image_update(self):
# TODO first rotate then transpose
if self.mask is not None:
# self.image = np.ma.masked_array(self.image, mask=self.mask) #TODO test if np works
self.image = self.image * (1 - self.mask) + 1
if self.checkBox_FFT.isChecked():
self.image = np.abs(np.fft.fftshift(np.fft.fft2(self.image)))
if self.comboBox_rotation.currentIndex() > 0: # rotate
self.image = np.rot90(self.image, k=self.comboBox_rotation.currentIndex(), axes=(0, 1))
if self.checkBox_transpose.isChecked(): # transpose
self.image = np.transpose(self.image)
if self.checkBox_log.isChecked():
self.image = np.log10(self.image)
self.imageItem.setImage(self.image, autoLevels=False)
###############################
# ZMQ Consumer
###############################
def start_zmq_consumer(self):
consumer_thread = threading.Thread(
target=self.zmq_consumer, args=(self._zmq_consumer_exit_event,), daemon=True
)
consumer_thread.start()
return consumer_thread
def zmq_consumer(self, exit_event):
print("starting consumer")
live_stream_url = "tcp://129.129.95.38:20000"
receiver = zmq.Context().socket(zmq.SUB)
receiver.connect(live_stream_url)
receiver.setsockopt_string(zmq.SUBSCRIBE, "")
poller = zmq.Poller()
poller.register(receiver, zmq.POLLIN)
# code could be a bit simpler here, testing exit_event in
# 'while' condition, but like this it is easier for the
# 'test_zmq_consumer' test
while True:
if poller.poll(1000): # 1s timeout
raw_meta, raw_data = receiver.recv_multipart(zmq.NOBLOCK)
meta = json.loads(raw_meta.decode("utf-8"))
self.image = np.frombuffer(raw_data, dtype=meta["type"]).reshape(meta["shape"])
self.update_signal.emit()
if exit_event.is_set():
break
receiver.disconnect(live_stream_url)
###############################
# just simulations from here
###############################
def show_help_dialog(self):
dialog = QDialog(self)
dialog.setWindowTitle("Help")
layout = QVBoxLayout()
# Key bindings section
layout.addWidget(QLabel("Keyboard Shortcuts:"))
key_bindings = [
("Ctrl+A", "Increase rotation"),
("Ctrl+Z", "Decrease rotation"),
("Ctrl+T", "Toggle transpose"),
("Ctrl+F", "Toggle FFT"),
("Ctrl+L", "Toggle log scale"),
("Ctrl+M", "Load mask"),
("Ctrl+D", "Delete mask"),
]
for keys, action in key_bindings:
layout.addWidget(QLabel(f"{keys} - {action}"))
# Separator
separator = QFrame()
separator.setFrameShape(QFrame.HLine)
separator.setFrameShadow(QFrame.Sunken)
layout.addWidget(separator)
# Histogram section
layout.addWidget(QLabel("Histogram:"))
layout.addWidget(
QLabel(
"Use the Double Spin Boxes to adjust the minimum and maximum values of the histogram."
)
)
# Another Separator
another_separator = QFrame()
another_separator.setFrameShape(QFrame.HLine)
another_separator.setFrameShadow(QFrame.Sunken)
layout.addWidget(another_separator)
# Mask section
layout.addWidget(QLabel("Mask:"))
layout.addWidget(
QLabel(
"Use 'Load Mask' to load a mask from an H5 file. 'Delete Mask' removes the current mask."
)
)
dialog.setLayout(layout)
dialog.exec()
###############################
# just simulations from here
###############################
# def start_sim_stream(self):
# sim_stream_thread = threading.Thread(target=self.sim_stream, daemon=True)
# sim_stream_thread.start()
#
# def sim_stream(self):
# for i in range(100):
# # Generate 100x100 image of random noise
# self.image = np.random.rand(100, 100) * 0.2
#
# # Define Gaussian parameters
# x, y = np.mgrid[0:50, 0:50]
# pos = np.dstack((x, y))
#
# # Center at (25, 25) longer along y-axis
# rv = multivariate_normal(mean=[25, 25], cov=[[25, 0], [0, 80]])
#
# # Generate Gaussian in the first quadrant
# gaussian_quadrant = rv.pdf(pos) * 40
#
# # Place Gaussian in the first quadrant
# self.image[0:50, 0:50] += gaussian_quadrant * 10
#
# self.update_signal.emit()
# time.sleep(0.1)
if __name__ == "__main__":
import sys
from qtpy.QtWidgets import QApplication
app = QApplication(sys.argv)
plot = EigerPlot()
plot.show()
sys.exit(app.exec())

View File

@@ -0,0 +1,207 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Form</class>
<widget class="QWidget" name="Form">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>874</width>
<height>762</height>
</rect>
</property>
<property name="windowTitle">
<string>Form</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="QGroupBox" name="groupBox">
<property name="title">
<string>Plot Control</string>
</property>
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0">
<widget class="QLabel" name="label">
<property name="text">
<string>Histogram MIN</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QDoubleSpinBox" name="doubleSpinBox_hist_min">
<property name="minimum">
<double>-100000.000000000000000</double>
</property>
<property name="maximum">
<double>100000.000000000000000</double>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_2">
<property name="text">
<string>Histogram MAX</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QDoubleSpinBox" name="doubleSpinBox_hist_max">
<property name="minimum">
<double>-100000.000000000000000</double>
</property>
<property name="maximum">
<double>100000.000000000000000</double>
</property>
<property name="value">
<double>2.000000000000000</double>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox_2">
<property name="title">
<string>Data Control</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QCheckBox" name="checkBox_FFT">
<property name="enabled">
<bool>true</bool>
</property>
<property name="text">
<string>FFT</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="checkBox_log">
<property name="text">
<string>log</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton_mask">
<property name="text">
<string>Load Mask</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton_delete_mask">
<property name="text">
<string>Delete Mask</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox_3">
<property name="title">
<string>Orientation</string>
</property>
<layout class="QGridLayout" name="gridLayout_2">
<item row="2" column="1">
<widget class="QComboBox" name="comboBox_rotation">
<item>
<property name="text">
<string>0</string>
</property>
</item>
<item>
<property name="text">
<string>90</string>
</property>
</item>
<item>
<property name="text">
<string>180</string>
</property>
</item>
<item>
<property name="text">
<string>270</string>
</property>
</item>
</widget>
</item>
<item row="2" column="0">
<widget class="QLabel" name="label_3">
<property name="text">
<string>Rotation</string>
</property>
</widget>
</item>
<item row="0" column="0" colspan="2">
<widget class="QCheckBox" name="checkBox_transpose">
<property name="text">
<string>Transpose</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox_4">
<property name="title">
<string>Help</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_3">
<item>
<widget class="QLabel" name="label_mask">
<property name="text">
<string>No Mask</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton_help">
<property name="text">
<string>Help</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="horizontalSpacer">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
</layout>
</item>
<item>
<widget class="GraphicsLayoutWidget" name="glw"/>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>GraphicsLayoutWidget</class>
<extends>QGraphicsView</extends>
<header>pyqtgraph.h</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

View File

@@ -1,92 +0,0 @@
import os
import sys
from qtpy.QtCore import QSize
from qtpy.QtGui import QActionGroup, QIcon
from qtpy.QtWidgets import QApplication, QMainWindow, QStyle
import bec_widgets
from bec_widgets.examples.general_app.web_links import BECWebLinksMixin
from bec_widgets.utils.colors import apply_theme
from bec_widgets.utils.ui_loader import UILoader
MODULE_PATH = os.path.dirname(bec_widgets.__file__)
class BECGeneralApp(QMainWindow):
def __init__(self, parent=None):
super(BECGeneralApp, self).__init__(parent)
ui_file_path = os.path.join(os.path.dirname(__file__), "general_app.ui")
self.load_ui(ui_file_path)
self.resize(1280, 720)
self.ini_ui()
def ini_ui(self):
self._setup_icons()
self._hook_menubar_docs()
self._hook_theme_bar()
def load_ui(self, ui_file):
loader = UILoader(self)
self.ui = loader.loader(ui_file)
self.setCentralWidget(self.ui)
def _hook_menubar_docs(self):
# BEC Docs
self.ui.action_BEC_docs.triggered.connect(BECWebLinksMixin.open_bec_docs)
# BEC Widgets Docs
self.ui.action_BEC_widgets_docs.triggered.connect(BECWebLinksMixin.open_bec_widgets_docs)
# Bug report
self.ui.action_bug_report.triggered.connect(BECWebLinksMixin.open_bec_bug_report)
def change_theme(self, theme):
apply_theme(theme)
def _setup_icons(self):
help_icon = QApplication.style().standardIcon(QStyle.SP_MessageBoxQuestion)
bug_icon = QApplication.style().standardIcon(QStyle.SP_MessageBoxInformation)
computer_icon = QIcon.fromTheme("computer")
widget_icon = QIcon(os.path.join(MODULE_PATH, "assets", "designer_icons", "dock_area.png"))
self.ui.action_BEC_docs.setIcon(help_icon)
self.ui.action_BEC_widgets_docs.setIcon(help_icon)
self.ui.action_bug_report.setIcon(bug_icon)
self.ui.central_tab.setTabIcon(0, widget_icon)
self.ui.central_tab.setTabIcon(1, computer_icon)
def _hook_theme_bar(self):
self.ui.action_light.setCheckable(True)
self.ui.action_dark.setCheckable(True)
# Create an action group to make sure only one can be checked at a time
theme_group = QActionGroup(self)
theme_group.addAction(self.ui.action_light)
theme_group.addAction(self.ui.action_dark)
theme_group.setExclusive(True)
# Connect the actions to the theme change method
self.ui.action_light.triggered.connect(lambda: self.change_theme("light"))
self.ui.action_dark.triggered.connect(lambda: self.change_theme("dark"))
self.ui.action_dark.trigger()
def main(): # pragma: no cover
app = QApplication(sys.argv)
icon = QIcon()
icon.addFile(
os.path.join(MODULE_PATH, "assets", "app_icons", "BEC-General-App.png"), size=QSize(48, 48)
)
app.setWindowIcon(icon)
main_window = BECGeneralApp()
main_window.show()
sys.exit(app.exec_())
if __name__ == "__main__": # pragma: no cover
main()

View File

@@ -1,262 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>1718</width>
<height>1139</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<property name="tabShape">
<enum>QTabWidget::TabShape::Rounded</enum>
</property>
<widget class="QWidget" name="centralwidget">
<layout class="QVBoxLayout" name="verticalLayout_3">
<item>
<widget class="QTabWidget" name="central_tab">
<property name="currentIndex">
<number>0</number>
</property>
<widget class="QWidget" name="dock_area_tab">
<attribute name="title">
<string>Dock Area</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout">
<property name="leftMargin">
<number>2</number>
</property>
<property name="topMargin">
<number>1</number>
</property>
<property name="rightMargin">
<number>2</number>
</property>
<property name="bottomMargin">
<number>2</number>
</property>
<item>
<widget class="BECDockArea" name="dock_area"/>
</item>
</layout>
</widget>
<widget class="QWidget" name="vscode_tab">
<attribute name="icon">
<iconset theme="QIcon::ThemeIcon::Computer"/>
</attribute>
<attribute name="title">
<string>Visual Studio Code</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_2">
<property name="leftMargin">
<number>2</number>
</property>
<property name="topMargin">
<number>1</number>
</property>
<property name="rightMargin">
<number>2</number>
</property>
<property name="bottomMargin">
<number>2</number>
</property>
<item>
<widget class="VSCodeEditor" name="vscode"/>
</item>
</layout>
</widget>
</widget>
</item>
</layout>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>1718</width>
<height>31</height>
</rect>
</property>
<widget class="QMenu" name="menuHelp">
<property name="title">
<string>Help</string>
</property>
<addaction name="action_BEC_docs"/>
<addaction name="action_BEC_widgets_docs"/>
<addaction name="action_bug_report"/>
</widget>
<widget class="QMenu" name="menuTheme">
<property name="title">
<string>Theme</string>
</property>
<addaction name="action_light"/>
<addaction name="action_dark"/>
</widget>
<addaction name="menuTheme"/>
<addaction name="menuHelp"/>
</widget>
<widget class="QStatusBar" name="statusbar"/>
<widget class="QDockWidget" name="dock_scan_control">
<property name="windowTitle">
<string>Scan Control</string>
</property>
<attribute name="dockWidgetArea">
<number>2</number>
</attribute>
<widget class="QWidget" name="dockWidgetContents_2">
<layout class="QVBoxLayout" name="verticalLayout_4">
<item>
<widget class="ScanControl" name="scan_control"/>
</item>
</layout>
</widget>
</widget>
<widget class="QDockWidget" name="dock_status_2">
<property name="windowTitle">
<string>BEC Service Status</string>
</property>
<attribute name="dockWidgetArea">
<number>2</number>
</attribute>
<widget class="QWidget" name="dockWidgetContents_3">
<layout class="QVBoxLayout" name="verticalLayout_5">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="BECStatusBox" name="bec_status_box_2"/>
</item>
</layout>
</widget>
</widget>
<widget class="QDockWidget" name="dock_queue">
<property name="windowTitle">
<string>Scan Queue</string>
</property>
<attribute name="dockWidgetArea">
<number>2</number>
</attribute>
<widget class="QWidget" name="dockWidgetContents_4">
<layout class="QVBoxLayout" name="verticalLayout_6">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<widget class="BECQueue" name="bec_queue">
<row/>
<column/>
<column/>
<column/>
<item row="0" column="0"/>
<item row="0" column="1"/>
<item row="0" column="2"/>
</widget>
</item>
</layout>
</widget>
</widget>
<action name="action_BEC_docs">
<property name="icon">
<iconset theme="QIcon::ThemeIcon::DialogQuestion"/>
</property>
<property name="text">
<string>BEC Docs</string>
</property>
</action>
<action name="action_BEC_widgets_docs">
<property name="icon">
<iconset theme="QIcon::ThemeIcon::DialogQuestion"/>
</property>
<property name="text">
<string>BEC Widgets Docs</string>
</property>
</action>
<action name="action_bug_report">
<property name="icon">
<iconset theme="QIcon::ThemeIcon::DialogError"/>
</property>
<property name="text">
<string>Bug Report</string>
</property>
</action>
<action name="action_light">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>Light</string>
</property>
</action>
<action name="action_dark">
<property name="checkable">
<bool>true</bool>
</property>
<property name="text">
<string>Dark</string>
</property>
</action>
</widget>
<customwidgets>
<customwidget>
<class>WebsiteWidget</class>
<extends>QWebEngineView</extends>
<header>website_widget</header>
</customwidget>
<customwidget>
<class>BECQueue</class>
<extends>QTableWidget</extends>
<header>bec_queue</header>
</customwidget>
<customwidget>
<class>ScanControl</class>
<extends>QWidget</extends>
<header>scan_control</header>
</customwidget>
<customwidget>
<class>VSCodeEditor</class>
<extends>WebsiteWidget</extends>
<header>vs_code_editor</header>
</customwidget>
<customwidget>
<class>BECStatusBox</class>
<extends>QWidget</extends>
<header>bec_status_box</header>
</customwidget>
<customwidget>
<class>BECDockArea</class>
<extends>QWidget</extends>
<header>dock_area</header>
</customwidget>
<customwidget>
<class>QWebEngineView</class>
<extends></extends>
<header location="global">QtWebEngineWidgets/QWebEngineView</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

View File

@@ -1,15 +0,0 @@
import webbrowser
class BECWebLinksMixin:
@staticmethod
def open_bec_docs():
webbrowser.open("https://beamline-experiment-control.readthedocs.io/en/latest/")
@staticmethod
def open_bec_widgets_docs():
webbrowser.open("https://bec.readthedocs.io/projects/bec-widgets/en/latest/")
@staticmethod
def open_bec_bug_report():
webbrowser.open("https://gitlab.psi.ch/groups/bec/-/issues/")

View File

@@ -2,29 +2,38 @@ import os
import numpy as np
import pyqtgraph as pg
from bec_qthemes import material_icon
from qtpy.QtWidgets import (
QApplication,
QGroupBox,
QHBoxLayout,
QPushButton,
QSplitter,
QTabWidget,
QVBoxLayout,
QWidget,
)
import qdarktheme
from PyQt6.QtWidgets import QPushButton, QTextEdit
from pyqtgraph.Qt import QtWidgets, uic
from qtconsole.inprocess import QtInProcessKernelManager
from qtconsole.rich_jupyter_widget import RichJupyterWidget
from qtpy.QtCore import QSize
from qtpy.QtGui import QIcon
from qtpy.QtWidgets import QApplication, QVBoxLayout, QWidget
from bec_widgets.cli.rpc_register import RPCRegister
from bec_widgets.utils import BECDispatcher
from bec_widgets.utils.widget_io import WidgetHierarchy as wh
from bec_widgets.widgets.containers.dock import BECDockArea
from bec_widgets.widgets.containers.layout_manager.layout_manager import LayoutManagerWidget
from bec_widgets.widgets.editors.jupyter_console.jupyter_console import BECJupyterConsole
from bec_widgets.widgets.plots.image.image import Image
from bec_widgets.widgets.plots.motor_map.motor_map import MotorMap
from bec_widgets.widgets.plots.multi_waveform.multi_waveform import MultiWaveform
from bec_widgets.widgets.plots.plot_base import PlotBase
from bec_widgets.widgets.plots.scatter_waveform.scatter_waveform import ScatterWaveform
from bec_widgets.widgets.plots.waveform.waveform import Waveform
from bec_widgets.widgets import BECFigure
from bec_widgets.widgets.dock.dock_area import BECDockArea
from bec_widgets.widgets.dock_area.dock_area import BECDockAreaAlt
from bec_widgets.widgets.spiral_progress_bar.spiral_progress_bar import SpiralProgressBar
class JupyterConsoleWidget(RichJupyterWidget): # pragma: no cover:
def __init__(self):
super().__init__()
self.kernel_manager = QtInProcessKernelManager()
self.kernel_manager.start_kernel(show_banner=False)
self.kernel_client = self.kernel_manager.client()
self.kernel_client.start_channels()
self.kernel_manager.kernel.shell.push({"np": np, "pg": pg})
# self.set_console_font_size(70)
def shutdown_kernel(self):
self.kernel_client.stop_channels()
self.kernel_manager.shutdown_kernel()
class JupyterConsoleWindow(QWidget): # pragma: no cover:
@@ -33,154 +42,136 @@ class JupyterConsoleWindow(QWidget): # pragma: no cover:
def __init__(self, parent=None):
super().__init__(parent)
current_path = os.path.dirname(__file__)
uic.loadUi(os.path.join(current_path, "jupyter_console_window.ui"), self)
self._init_ui()
self.splitter.setSizes([200, 100])
self.safe_close = False
# self.figure.clean_signal.connect(self.confirm_close)
self.register = RPCRegister()
self.register.add_rpc(self.figure)
# console push
if self.console.inprocess is True:
self.console.kernel_manager.kernel.shell.push(
{
"np": np,
"pg": pg,
"wh": wh,
"dock": self.dock,
"im": self.im,
# "mi": self.mi,
# "mm": self.mm,
# "lm": self.lm,
# "btn1": self.btn1,
# "btn2": self.btn2,
# "btn3": self.btn3,
# "btn4": self.btn4,
# "btn5": self.btn5,
# "btn6": self.btn6,
# "pb": self.pb,
# "pi": self.pi,
# "wf": self.wf,
# "scatter": self.scatter,
# "scatter_mi": self.scatter,
# "mwf": self.mwf,
}
)
self.console.kernel_manager.kernel.shell.push(
{
"fig": self.figure,
"register": self.register,
"dock": self.dock,
"w1": self.w1,
"w2": self.w2,
"w3": self.w3,
"d1": self.d1,
"d2": self.d2,
"d3": self.d3,
"bar": self.bar,
"b2a": self.button_2_a,
"b2b": self.button_2_b,
"b2c": self.button_2_c,
"bec": self.figure.client,
"scans": self.figure.client.scans,
"dev": self.figure.client.device_manager.devices,
}
)
def _init_ui(self):
self.layout = QHBoxLayout(self)
# Plotting window
self.glw_1_layout = QVBoxLayout(self.glw) # Create a new QVBoxLayout
self.figure = BECFigure(parent=self, gui_id="remote") # Create a new BECDeviceMonitor
self.glw_1_layout.addWidget(self.figure) # Add BECDeviceMonitor to the layout
# Horizontal splitter
splitter = QSplitter(self)
self.layout.addWidget(splitter)
self.dock_layout = QVBoxLayout(self.dock_placeholder)
self.dock = BECDockArea(gui_id="remote")
self.dock_layout.addWidget(self.dock)
tab_widget = QTabWidget(splitter)
# add stuff to figure
self._init_figure()
first_tab = QWidget()
first_tab_layout = QVBoxLayout(first_tab)
self.dock = BECDockArea(gui_id="dock")
first_tab_layout.addWidget(self.dock)
tab_widget.addTab(first_tab, "Dock Area")
# init dock for testing
self._init_dock()
# third_tab = QWidget()
# third_tab_layout = QVBoxLayout(third_tab)
# self.lm = LayoutManagerWidget()
# third_tab_layout.addWidget(self.lm)
# tab_widget.addTab(third_tab, "Layout Manager Widget")
#
# fourth_tab = QWidget()
# fourth_tab_layout = QVBoxLayout(fourth_tab)
# self.pb = PlotBase()
# self.pi = self.pb.plot_item
# fourth_tab_layout.addWidget(self.pb)
# tab_widget.addTab(fourth_tab, "PlotBase")
#
# tab_widget.setCurrentIndex(3)
#
group_box = QGroupBox("Jupyter Console", splitter)
group_box_layout = QVBoxLayout(group_box)
self.console = BECJupyterConsole(inprocess=True)
group_box_layout.addWidget(self.console)
#
# # Some buttons for layout testing
# self.btn1 = QPushButton("Button 1")
# self.btn2 = QPushButton("Button 2")
# self.btn3 = QPushButton("Button 3")
# self.btn4 = QPushButton("Button 4")
# self.btn5 = QPushButton("Button 5")
# self.btn6 = QPushButton("Button 6")
#
# fifth_tab = QWidget()
# fifth_tab_layout = QVBoxLayout(fifth_tab)
# self.wf = Waveform()
# fifth_tab_layout.addWidget(self.wf)
# tab_widget.addTab(fifth_tab, "Waveform Next Gen")
# tab_widget.setCurrentIndex(4)
#
sixth_tab = QWidget()
sixth_tab_layout = QVBoxLayout(sixth_tab)
self.im = Image(popups=True)
self.mi = self.im.main_image
sixth_tab_layout.addWidget(self.im)
tab_widget.addTab(sixth_tab, "Image Next Gen")
tab_widget.setCurrentIndex(1)
#
# seventh_tab = QWidget()
# seventh_tab_layout = QVBoxLayout(seventh_tab)
# self.scatter = ScatterWaveform()
# self.scatter_mi = self.scatter.main_curve
# self.scatter.plot("samx", "samy", "bpm4i")
# seventh_tab_layout.addWidget(self.scatter)
# tab_widget.addTab(seventh_tab, "Scatter Waveform")
# tab_widget.setCurrentIndex(6)
#
# eighth_tab = QWidget()
# eighth_tab_layout = QVBoxLayout(eighth_tab)
# self.mm = MotorMap()
# eighth_tab_layout.addWidget(self.mm)
# tab_widget.addTab(eighth_tab, "Motor Map")
# tab_widget.setCurrentIndex(7)
#
# ninth_tab = QWidget()
# ninth_tab_layout = QVBoxLayout(ninth_tab)
# self.mwf = MultiWaveform()
# ninth_tab_layout.addWidget(self.mwf)
# tab_widget.addTab(ninth_tab, "MultiWaveform")
# tab_widget.setCurrentIndex(8)
#
# # add stuff to the new Waveform widget
# self._init_waveform()
#
# self.setWindowTitle("Jupyter Console Window")
self.console_layout = QVBoxLayout(self.widget_console)
self.console = JupyterConsoleWidget()
self.console_layout.addWidget(self.console)
self.console.set_default_style("linux")
def _init_waveform(self):
self.wf.plot(y_name="bpm4i", y_entry="bpm4i", dap="GaussianModel")
self.wf.plot(y_name="bpm3a", y_entry="bpm3a", dap="GaussianModel")
def _init_figure(self):
self.figure.plot("samx", "bpm4d")
self.figure.motor_map("samx", "samy")
self.figure.image("eiger", color_map="viridis", vrange=(0, 100))
self.figure.change_layout(2, 2)
self.w1 = self.figure[0, 0]
self.w2 = self.figure[0, 1]
self.w3 = self.figure[1, 0]
# curves for w1
self.w1.add_curve_scan("samx", "samy", "bpm4i", pen_style="dash")
self.w1.add_curve_scan("samx", "samy", "bpm3a", pen_style="dash")
self.c1 = self.w1.get_config()
def _init_dock(self):
self.d0 = self.dock.add_dock(name="dock_0")
self.fig0 = self.d0.add_widget_bec("BECFigure")
self.fig0.image("eiger", vrange=(0, 100))
self.d1 = self.dock.add_dock(name="dock_1", position="right")
self.fig1 = self.d1.add_widget_bec("BECFigure")
self.fig1.plot("samx", "bpm4i")
self.fig1.plot("samx", "bpm3a")
self.d2 = self.dock.add_dock(name="dock_2", position="bottom")
self.fi2 = self.d2.add_widget_bec("BECFigure", row=0, col=0)
self.fi2.motor_map("samx", "samy")
self.bar2 = self.d2.add_widget_bec("SpiralProgressBar", row=0, col=1)
self.bar2.set_diameter(200)
self.dock.save_state()
def ini_dock_alt(self):
self.d0_alt = self.dock_alt.add_dock(title="dock_0", layout="grid", position="top")
self.fig0_alt = self.d0_alt.add_widget_bec("BECFigure")
self.fig0_alt.image("eiger", vrange=(0, 100))
self.d1_alt = self.dock_alt.add_dock(title="dock_1", layout="grid", position="top")
self.fig1_alt = self.d1_alt.add_widget_bec("BECFigure")
self.fig1_alt.plot("samx", "bpm4i")
self.fig1_alt.plot("samx", "bpm3a")
self.d2_alt = self.dock_alt.add_dock(title="dock_2", layout="grid", position="bottom")
self.fi2_alt = self.d2_alt.add_widget_bec("BECFigure", row=0, col=0)
self.fi2_alt.motor_map("samx", "samy")
self.bar2_alt = self.d2_alt.add_widget_bec("SpiralProgressBar", row=0, col=1)
self.bar2_alt.set_diameter(200)
def closeEvent(self, event):
"""Override to handle things when main window is closed."""
self.dock.cleanup()
self.dock.close()
self.console.close()
self.figure.clear_all()
self.figure.client.shutdown()
super().closeEvent(event)
if __name__ == "__main__": # pragma: no cover
import sys
import bec_widgets
module_path = os.path.dirname(bec_widgets.__file__)
bec_dispatcher = BECDispatcher()
client = bec_dispatcher.client
client.start()
app = QApplication(sys.argv)
app.setApplicationName("Jupyter Console")
app.setApplicationDisplayName("Jupyter Console")
icon = material_icon("terminal", color=(255, 255, 255, 255), filled=True)
qdarktheme.setup_theme("auto")
icon = QIcon()
icon.addFile("terminal_icon.png", size=QSize(48, 48))
app.setWindowIcon(icon)
bec_dispatcher = BECDispatcher(gui_id="jupyter_console")
client = bec_dispatcher.client
client.start()
win = JupyterConsoleWindow()
win.show()
win.resize(1500, 800)
app.aboutToQuit.connect(win.close)
sys.exit(app.exec_())

View File

@@ -0,0 +1,64 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Form</class>
<widget class="QWidget" name="Form">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>2104</width>
<height>966</height>
</rect>
</property>
<property name="windowTitle">
<string>Plotting Console</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_4">
<item>
<widget class="QSplitter" name="splitter">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<widget class="QTabWidget" name="tabWidget">
<property name="currentIndex">
<number>1</number>
</property>
<widget class="QWidget" name="tab_1">
<attribute name="title">
<string>Dock - Pyqtgraph</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QWidget" name="dock_placeholder" native="true"/>
</item>
</layout>
</widget>
<widget class="QWidget" name="tab">
<attribute name="title">
<string>Dock - Qt Native</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<widget class="QWidget" name="dock_alt_placeholder" native="true"/>
</item>
</layout>
</widget>
<widget class="QWidget" name="tab_2">
<attribute name="title">
<string>BECFigure</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_3">
<item>
<widget class="QWidget" name="glw" native="true"/>
</item>
</layout>
</widget>
</widget>
<widget class="QWidget" name="widget_console" native="true"/>
</widget>
</item>
</layout>
</widget>
<resources/>
<connections/>
</ui>

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# import simulation_progress as SP
import numpy as np
import pyqtgraph as pg
from bec_lib import messages
from bec_lib.endpoints import MessageEndpoints
from qtpy.QtCore import Signal as pyqtSignal
from qtpy.QtCore import Slot as pyqtSlot
from qtpy.QtWidgets import QApplication, QVBoxLayout, QWidget
class StreamApp(QWidget):
update_signal = pyqtSignal()
new_scan_id = pyqtSignal(str)
def __init__(self, device, sub_device):
super().__init__()
pg.setConfigOptions(background="w", foreground="k")
self.init_ui()
self.setWindowTitle("MCA readout")
self.data = None
self.scan_id = None
self.stream_consumer = None
self.device = device
self.sub_device = sub_device
self.start_device_consumer()
# self.start_device_consumer(self.device) # for simulation
self.new_scan_id.connect(self.create_new_stream_consumer)
self.update_signal.connect(self.plot_new)
def init_ui(self):
# Create layout and add widgets
self.layout = QVBoxLayout()
self.setLayout(self.layout)
# Create plot
self.glw = pg.GraphicsLayoutWidget()
self.layout.addWidget(self.glw)
# Create Plot and add ImageItem
self.plot_item = pg.PlotItem()
self.plot_item.setAspectLocked(False)
self.imageItem = pg.ImageItem()
# self.plot_item1D = pg.PlotItem()
# self.plot_item.addItem(self.imageItem)
# self.plot_item.addItem(self.plot_item1D)
# Setting up histogram
# self.hist = pg.HistogramLUTItem()
# self.hist.setImageItem(self.imageItem)
# self.hist.gradient.loadPreset("magma")
# self.update_hist()
# Adding Items to Graphical Layout
self.glw.addItem(self.plot_item)
# self.glw.addItem(self.hist)
@pyqtSlot(str)
def create_new_stream_consumer(self, scan_id: str):
print(f"Creating new stream consumer for scan_id: {scan_id}")
self.connect_stream_consumer(scan_id, self.device)
def connect_stream_consumer(self, scan_id, device):
if self.stream_consumer is not None:
self.stream_consumer.shutdown()
self.stream_consumer = connector.stream_consumer(
topics=MessageEndpoints.device_async_readback(scan_id=scan_id, device=device),
cb=self._streamer_cb,
parent=self,
)
self.stream_consumer.start()
def start_device_consumer(self):
self.device_consumer = connector.consumer(
topics=MessageEndpoints.scan_status(), cb=self._device_cv, parent=self
)
self.device_consumer.start()
# def start_device_consumer(self, device): #for simulation
# self.device_consumer = connector.consumer(
# topics=MessageEndpoints.device_status(device), cb=self._device_cv, parent=self
# )
#
# self.device_consumer.start()
def plot_new(self):
print(f"Printing data from plot update: {self.data}")
self.plot_item.plot(self.data[0])
# self.imageItem.setImage(self.data, autoLevels=False)
@staticmethod
def _streamer_cb(msg, *, parent, **_kwargs) -> None:
msgMCS = msg.value
print(msgMCS)
row = msgMCS.content["signals"][parent.sub_device]
metadata = msgMCS.metadata
# Check if the current number of rows is odd
# if parent.data is not None and parent.data.shape[0] % 2 == 1:
# row = np.flip(row) # Flip the row
print(f"Printing data from callback update: {row}")
parent.data = np.array([row])
# if parent.data is None:
# parent.data = np.array([row])
# else:
# parent.data = np.vstack((parent.data, row))
parent.update_signal.emit()
@staticmethod
def _device_cv(msg, *, parent, **_kwargs) -> None:
print("Getting ScanID")
msgDEV = msg.value
current_scan_id = msgDEV.content["scan_id"]
if parent.scan_id is None:
parent.scan_id = current_scan_id
parent.new_scan_id.emit(current_scan_id)
print(f"New scan_id: {current_scan_id}")
if current_scan_id != parent.scan_id:
parent.scan_id = current_scan_id
# parent.data = None
# parent.imageItem.clear()
parent.new_scan_id.emit(current_scan_id)
print(f"New scan_id: {current_scan_id}")
if __name__ == "__main__":
import argparse
from bec_lib.redis_connector import RedisConnector
parser = argparse.ArgumentParser(description="Stream App.")
parser.add_argument("--port", type=str, default="pc15543:6379", help="Port for RedisConnector")
parser.add_argument("--device", type=str, default="mcs", help="Device name")
parser.add_argument("--sub_device", type=str, default="mca4", help="Sub-device name")
args = parser.parse_args()
connector = RedisConnector(args.port)
app = QApplication([])
streamApp = StreamApp(device=args.device, sub_device=args.sub_device)
streamApp.show()
app.exec()

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import time
from bec_lib import messages
from bec_lib.endpoints import MessageEndpoints
from bec_lib.redis_connector import RedisConnector
connector = RedisConnector("localhost:6379")
metadata = {}
scan_id = "ScanID1"
metadata.update(
{"scan_id": scan_id, "async_update": "append"} # this will be different for each scan
)
for ii in range(20):
data = {"mca1": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], "mca2": [10, 9, 8, 7, 6, 5, 4, 3, 2, 1]}
msg = messages.DeviceMessage(signals=data, metadata=metadata).dumps()
connector.xadd(
topic=MessageEndpoints.device_async_readback(
scan_id=scan_id, device="mca"
), # scan_id will be different for each scan
msg={"data": msg}, # TODO should be msg_dict
expire=1800,
)
print(f"Sent {ii}")
time.sleep(0.5)

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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>1433</width>
<height>689</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<layout class="QGridLayout" name="gridLayout">
<item row="1" column="2">
<widget class="QLabel" name="label_3">
<property name="text">
<string>Plot Config 2</string>
</property>
</widget>
</item>
<item row="3" column="0" colspan="2">
<widget class="BECMonitor" name="plot_1"/>
</item>
<item row="1" column="3">
<widget class="QPushButton" name="pushButton_setting_2">
<property name="text">
<string>Setting Plot 2</string>
</property>
</widget>
</item>
<item row="3" column="2" colspan="2">
<widget class="BECMonitor" name="plot_2"/>
</item>
<item row="1" column="4">
<widget class="QLabel" name="label_2">
<property name="text">
<string>Plot Scan Types = True</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QPushButton" name="pushButton_setting_1">
<property name="text">
<string>Setting Plot 1</string>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label">
<property name="text">
<string>Plot Config 1</string>
</property>
</widget>
</item>
<item row="1" column="5">
<widget class="QPushButton" name="pushButton_setting_3">
<property name="text">
<string>Setting Plot 3</string>
</property>
</widget>
</item>
<item row="3" column="4" colspan="2">
<widget class="BECMonitor" name="plot_3"/>
</item>
</layout>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>1433</width>
<height>37</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<customwidgets>
<customwidget>
<class>BECMonitor</class>
<extends>QGraphicsView</extends>
<header location="global">bec_widgets.widgets.h</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

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import os
from qtpy import uic
from qtpy.QtWidgets import QApplication, QMainWindow
from bec_widgets.utils.bec_dispatcher import BECDispatcher
from bec_widgets.widgets import BECMonitor
# some default configs for demonstration purposes
CONFIG_SIMPLE = {
"plot_settings": {
"background_color": "black",
"num_columns": 2,
"colormap": "plasma",
"scan_types": False,
},
"plot_data": [
{
"plot_name": "BPM4i plots vs samx",
"x_label": "Motor X",
"y_label": "bpm4i",
"sources": [
{
"type": "scan_segment",
"signals": {
"x": [{"name": "samx"}],
"y": [{"name": "bpm4i", "entry": "bpm4i"}],
},
},
# {
# "type": "history",
# "signals": {
# "x": [{"name": "samx"}],
# "y": [{"name": "bpm4i", "entry": "bpm4i"}],
# },
# },
# {
# "type": "dap",
# 'worker':'some_worker',
# "signals": {
# "x": [{"name": "samx"}],
# "y": [{"name": "bpm4i", "entry": "bpm4i"}],
# },
# },
],
},
{
"plot_name": "Gauss plots vs samx",
"x_label": "Motor X",
"y_label": "Gauss",
"sources": [
{
"type": "scan_segment",
"signals": {
"x": [{"name": "samx", "entry": "samx"}],
"y": [{"name": "gauss_bpm"}, {"name": "gauss_adc1"}],
},
}
],
},
],
}
CONFIG_SCAN_MODE = {
"plot_settings": {
"background_color": "white",
"num_columns": 3,
"colormap": "plasma",
"scan_types": True,
},
"plot_data": {
"grid_scan": [
{
"plot_name": "Grid plot 1",
"x_label": "Motor X",
"y_label": "BPM",
"sources": [
{
"type": "scan_segment",
"signals": {
"x": [{"name": "samx", "entry": "samx"}],
"y": [{"name": "gauss_bpm"}],
},
}
],
},
{
"plot_name": "Grid plot 2",
"x_label": "Motor X",
"y_label": "BPM",
"sources": [
{
"type": "scan_segment",
"signals": {
"x": [{"name": "samx", "entry": "samx"}],
"y": [{"name": "gauss_adc1"}],
},
}
],
},
{
"plot_name": "Grid plot 3",
"x_label": "Motor X",
"y_label": "BPM",
"sources": [
{
"type": "scan_segment",
"signals": {"x": [{"name": "samy"}], "y": [{"name": "gauss_adc2"}]},
}
],
},
{
"plot_name": "Grid plot 4",
"x_label": "Motor X",
"y_label": "BPM",
"sources": [
{
"type": "scan_segment",
"signals": {
"x": [{"name": "samy", "entry": "samy"}],
"y": [{"name": "gauss_adc3"}],
},
}
],
},
],
"line_scan": [
{
"plot_name": "BPM plots vs samx",
"x_label": "Motor X",
"y_label": "Gauss",
"sources": [
{
"type": "scan_segment",
"signals": {
"x": [{"name": "samx", "entry": "samx"}],
"y": [{"name": "bpm4i"}],
},
}
],
},
{
"plot_name": "Gauss plots vs samx",
"x_label": "Motor X",
"y_label": "Gauss",
"sources": [
{
"type": "scan_segment",
"signals": {
"x": [{"name": "samx", "entry": "samx"}],
"y": [{"name": "gauss_bpm"}, {"name": "gauss_adc1"}],
},
}
],
},
],
},
}
class ModularApp(QMainWindow):
def __init__(self, client=None, parent=None):
super(ModularApp, self).__init__(parent)
# Client and device manager from BEC
self.client = BECDispatcher().client if client is None else client
# Loading UI
current_path = os.path.dirname(__file__)
uic.loadUi(os.path.join(current_path, "modular.ui"), self)
self._init_plots()
def _init_plots(self):
"""Initialize plots and connect the buttons to the config dialogs"""
plots = [self.plot_1, self.plot_2, self.plot_3]
configs = [CONFIG_SIMPLE, CONFIG_SCAN_MODE, CONFIG_SCAN_MODE]
buttons = [self.pushButton_setting_1, self.pushButton_setting_2, self.pushButton_setting_3]
# hook plots, configs and buttons together
for plot, config, button in zip(plots, configs, buttons):
plot.on_config_update(config)
button.clicked.connect(plot.show_config_dialog)
if __name__ == "__main__":
# BECclient global variables
client = BECDispatcher().client
client.start()
app = QApplication([])
modularApp = ModularApp(client=client)
window = modularApp
window.show()
app.exec()

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from .motor_control_compilations import (
MotorControlApp,
MotorControlMap,
MotorControlPanel,
MotorControlPanelAbsolute,
MotorControlPanelRelative,
MotorCoordinateTable,
MotorThread,
)

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selected_motors:
motor_x: "samx"
motor_y: "samy"
plot_motors:
max_points: 1000
num_dim_points: 100
scatter_size: 5
precision: 3
mode_lock: False # "Individual" or "Start/Stop". False to unlock
extra_columns:
- sample name: "sample 1"
- step_x [mu]: 25
- step_y [mu]: 25
- exp_time [s]: 1
- start: 1
- tilt [deg]: 0

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redis:
host: pc15543
port: 6379
mongodb:
host: localhost
port: 27017
scibec:
host: http://localhost
port: 3030
beamline: MyBeamline

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selected_motors:
motor_x: "samx"
motor_y: "samy"
plot_motors:
max_points: 1000
num_dim_points: 100
scatter_size: 5
precision: 3
mode_lock: Start/Stop # "Individual" or "Start/Stop"
extra_columns:
- sample name: "sample 1"
- step_x [mu]: 25
- step_y [mu]: 25
- exp_time [s]: 1
- start: 1
- tilt [deg]: 0

View File

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# pylint: disable = no-name-in-module,missing-class-docstring, missing-module-docstring
import qdarktheme
from qtpy.QtCore import Qt
from qtpy.QtWidgets import QApplication, QSplitter, QVBoxLayout, QWidget
from bec_widgets.utils.bec_dispatcher import BECDispatcher
from bec_widgets.widgets.motor_control.motor_control import MotorThread
from bec_widgets.widgets.motor_control.motor_table.motor_table import MotorCoordinateTable
from bec_widgets.widgets.motor_control.movement_absolute.movement_absolute import (
MotorControlAbsolute,
)
from bec_widgets.widgets.motor_control.movement_relative.movement_relative import (
MotorControlRelative,
)
from bec_widgets.widgets.motor_control.selection.selection import MotorControlSelection
CONFIG_DEFAULT = {
"motor_control": {
"motor_x": "samx",
"motor_y": "samy",
"step_size_x": 3,
"step_size_y": 3,
"precision": 4,
"step_x_y_same": False,
"move_with_arrows": False,
},
"plot_settings": {
"colormap": "Greys",
"scatter_size": 5,
"max_points": 1000,
"num_dim_points": 100,
"precision": 2,
"num_columns": 1,
"background_value": 25,
},
"motors": [
{
"plot_name": "Motor Map",
"x_label": "Motor X",
"y_label": "Motor Y",
"signals": {
"x": [{"name": "samx", "entry": "samx"}],
"y": [{"name": "samy", "entry": "samy"}],
},
}
],
}
class MotorControlApp(QWidget):
def __init__(self, parent=None, client=None, config=None):
super().__init__(parent)
bec_dispatcher = BECDispatcher()
self.client = bec_dispatcher.client if client is None else client
self.config = config
# Widgets
self.motor_control_panel = MotorControlPanel(client=self.client, config=self.config)
# Create MotorMap
# self.motion_map = MotorMap(client=self.client, config=self.config)
# Create MotorCoordinateTable
self.motor_table = MotorCoordinateTable(client=self.client, config=self.config)
# Create the splitter and add MotorMap and MotorControlPanel
splitter = QSplitter(Qt.Horizontal)
# splitter.addWidget(self.motion_map)
splitter.addWidget(self.motor_control_panel)
splitter.addWidget(self.motor_table)
# Set the main layout
layout = QVBoxLayout(self)
layout.addWidget(splitter)
self.setLayout(layout)
# Connecting signals and slots
# self.motor_control_panel.selection_widget.selected_motors_signal.connect(
# lambda x, y: self.motion_map.change_motors(x, y, 0)
# )
self.motor_control_panel.absolute_widget.coordinates_signal.connect(
self.motor_table.add_coordinate
)
self.motor_control_panel.relative_widget.precision_signal.connect(
self.motor_table.set_precision
)
self.motor_control_panel.relative_widget.precision_signal.connect(
self.motor_control_panel.absolute_widget.set_precision
)
# self.motor_table.plot_coordinates_signal.connect(self.motion_map.plot_saved_coordinates)
class MotorControlMap(QWidget):
def __init__(self, parent=None, client=None, config=None):
super().__init__(parent)
bec_dispatcher = BECDispatcher()
self.client = bec_dispatcher.client if client is None else client
self.config = config
# Widgets
self.motor_control_panel = MotorControlPanel(client=self.client, config=self.config)
# Create MotorMap
# self.motion_map = MotorMap(client=self.client, config=self.config)
# Create the splitter and add MotorMap and MotorControlPanel
splitter = QSplitter(Qt.Horizontal)
# splitter.addWidget(self.motion_map)
splitter.addWidget(self.motor_control_panel)
# Set the main layout
layout = QVBoxLayout(self)
layout.addWidget(splitter)
self.setLayout(layout)
# Connecting signals and slots
# self.motor_control_panel.selection_widget.selected_motors_signal.connect(
# lambda x, y: self.motion_map.change_motors(x, y, 0)
# )
class MotorControlPanel(QWidget):
def __init__(self, parent=None, client=None, config=None):
super().__init__(parent)
bec_dispatcher = BECDispatcher()
self.client = bec_dispatcher.client if client is None else client
self.config = config
self.motor_thread = MotorThread(client=self.client)
self.selection_widget = MotorControlSelection(
client=self.client, config=self.config, motor_thread=self.motor_thread
)
self.relative_widget = MotorControlRelative(
client=self.client, config=self.config, motor_thread=self.motor_thread
)
self.absolute_widget = MotorControlAbsolute(
client=self.client, config=self.config, motor_thread=self.motor_thread
)
layout = QVBoxLayout(self)
layout.addWidget(self.selection_widget)
layout.addWidget(self.relative_widget)
layout.addWidget(self.absolute_widget)
# Connecting signals and slots
self.selection_widget.selected_motors_signal.connect(self.relative_widget.change_motors)
self.selection_widget.selected_motors_signal.connect(self.absolute_widget.change_motors)
# Set the window to a fixed size based on its contents
self.layout().setSizeConstraint(layout.SetFixedSize)
class MotorControlPanelAbsolute(QWidget):
def __init__(self, parent=None, client=None, config=None):
super().__init__(parent)
bec_dispatcher = BECDispatcher()
self.client = bec_dispatcher.client if client is None else client
self.config = config
self.motor_thread = MotorThread(client=self.client)
self.selection_widget = MotorControlSelection(
client=client, config=config, motor_thread=self.motor_thread
)
self.absolute_widget = MotorControlAbsolute(
client=client, config=config, motor_thread=self.motor_thread
)
layout = QVBoxLayout(self)
layout.addWidget(self.selection_widget)
layout.addWidget(self.absolute_widget)
# Connecting signals and slots
self.selection_widget.selected_motors_signal.connect(self.absolute_widget.change_motors)
# Set the window to a fixed size based on its contents
self.layout().setSizeConstraint(layout.SetFixedSize)
class MotorControlPanelRelative(QWidget):
def __init__(self, parent=None, client=None, config=None):
super().__init__(parent)
bec_dispatcher = BECDispatcher()
self.client = bec_dispatcher.client if client is None else client
self.config = config
self.motor_thread = MotorThread(client=self.client)
self.selection_widget = MotorControlSelection(
client=client, config=config, motor_thread=self.motor_thread
)
self.relative_widget = MotorControlRelative(
client=client, config=config, motor_thread=self.motor_thread
)
layout = QVBoxLayout(self)
layout.addWidget(self.selection_widget)
layout.addWidget(self.relative_widget)
# Connecting signals and slots
self.selection_widget.selected_motors_signal.connect(self.relative_widget.change_motors)
# Set the window to a fixed size based on its contents
self.layout().setSizeConstraint(layout.SetFixedSize)
if __name__ == "__main__": # pragma: no cover
import argparse
import sys
parser = argparse.ArgumentParser(description="Run various Motor Control Widgets compositions.")
parser.add_argument(
"-v",
"--variant",
type=str,
choices=["app", "map", "panel", "panel_abs", "panel_rel"],
help="Select the variant of the motor control to run. "
"'app' for the full application, "
"'map' for MotorMap, "
"'panel' for the MotorControlPanel, "
"'panel_abs' for MotorControlPanel with absolute control, "
"'panel_rel' for MotorControlPanel with relative control.",
)
args = parser.parse_args()
bec_dispatcher = BECDispatcher()
client = bec_dispatcher.client
client.start()
app = QApplication([])
qdarktheme.setup_theme("auto")
if args.variant == "app":
window = MotorControlApp(client=client) # , config=CONFIG_DEFAULT)
elif args.variant == "map":
window = MotorControlMap(client=client) # , config=CONFIG_DEFAULT)
elif args.variant == "panel":
window = MotorControlPanel(client=client) # , config=CONFIG_DEFAULT)
elif args.variant == "panel_abs":
window = MotorControlPanelAbsolute(client=client) # , config=CONFIG_DEFAULT)
elif args.variant == "panel_rel":
window = MotorControlPanelRelative(client=client) # , config=CONFIG_DEFAULT)
else:
print("Please specify a valid variant to run. Use -h for help.")
print("Running the full application by default.")
window = MotorControlApp(client=client) # , config=CONFIG_DEFAULT)
window.show()
sys.exit(app.exec())

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<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Form</class>
<widget class="QWidget" name="Form">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>1561</width>
<height>748</height>
</rect>
</property>
<property name="minimumSize">
<size>
<width>1409</width>
<height>748</height>
</size>
</property>
<property name="windowTitle">
<string>Motor Controller</string>
</property>
<layout class="QHBoxLayout" name="horizontalLayout" stretch="8,5,8">
<item>
<widget class="GraphicsLayoutWidget" name="glw">
<property name="enabled">
<bool>true</bool>
</property>
</widget>
</item>
<item>
<widget class="QFrame" name="Controls">
<property name="minimumSize">
<size>
<width>221</width>
<height>471</height>
</size>
</property>
<layout class="QVBoxLayout" name="verticalLayout_6" stretch="1,1,1,0,1">
<property name="spacing">
<number>1</number>
</property>
<property name="sizeConstraint">
<enum>QLayout::SetMinimumSize</enum>
</property>
<item>
<widget class="QGroupBox" name="motorSelection">
<property name="minimumSize">
<size>
<width>261</width>
<height>145</height>
</size>
</property>
<property name="title">
<string>Motor Selection</string>
</property>
<layout class="QGridLayout" name="gridLayout_4">
<item row="2" column="0">
<widget class="QLabel" name="label_8">
<property name="text">
<string>Motor Y</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QComboBox" name="comboBox_motor_x"/>
</item>
<item row="2" column="1">
<widget class="QComboBox" name="comboBox_motor_y"/>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_5">
<property name="text">
<string>Motor X</string>
</property>
</widget>
</item>
<item row="3" column="0" colspan="2">
<widget class="QPushButton" name="pushButton_connecMotors">
<property name="text">
<string>Connect Motors</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="verticalSpacer_3">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeType">
<enum>QSizePolicy::Minimum</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>18</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QGroupBox" name="motorControl">
<property name="minimumSize">
<size>
<width>261</width>
<height>339</height>
</size>
</property>
<property name="title">
<string>Motor Relative</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout_5">
<item>
<widget class="QCheckBox" name="checkBox_enableArrows">
<property name="text">
<string>Move with arrow keys</string>
</property>
</widget>
</item>
<item>
<widget class="QCheckBox" name="checkBox_same_xy">
<property name="text">
<string>Step [X] = Step [Y]</string>
</property>
</widget>
</item>
<item>
<layout class="QGridLayout" name="step_grid">
<item row="2" column="0">
<widget class="QLabel" name="label_step_y">
<property name="minimumSize">
<size>
<width>111</width>
<height>19</height>
</size>
</property>
<property name="text">
<string>Step [Y]</string>
</property>
</widget>
</item>
<item row="0" column="0">
<widget class="QLabel" name="label_2">
<property name="minimumSize">
<size>
<width>111</width>
<height>19</height>
</size>
</property>
<property name="text">
<string>Decimal</string>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QDoubleSpinBox" name="spinBox_step_x">
<property name="minimumSize">
<size>
<width>110</width>
<height>19</height>
</size>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>0.000000000000000</double>
</property>
<property name="maximum">
<double>99.000000000000000</double>
</property>
<property name="singleStep">
<double>0.100000000000000</double>
</property>
<property name="value">
<double>1.000000000000000</double>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_step_x">
<property name="minimumSize">
<size>
<width>111</width>
<height>19</height>
</size>
</property>
<property name="text">
<string>Step [X]</string>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QDoubleSpinBox" name="spinBox_step_y">
<property name="minimumSize">
<size>
<width>110</width>
<height>19</height>
</size>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>0.000000000000000</double>
</property>
<property name="maximum">
<double>99.000000000000000</double>
</property>
<property name="singleStep">
<double>0.100000000000000</double>
</property>
<property name="value">
<double>1.000000000000000</double>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QSpinBox" name="spinBox_precision">
<property name="minimumSize">
<size>
<width>110</width>
<height>19</height>
</size>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="maximum">
<number>8</number>
</property>
<property name="value">
<number>2</number>
</property>
</widget>
</item>
</layout>
</item>
<item>
<layout class="QGridLayout" name="direction_grid">
<property name="sizeConstraint">
<enum>QLayout::SetDefaultConstraint</enum>
</property>
<item row="1" column="2" alignment="Qt::AlignHCenter|Qt::AlignVCenter">
<widget class="QToolButton" name="toolButton_up">
<property name="minimumSize">
<size>
<width>26</width>
<height>26</height>
</size>
</property>
<property name="text">
<string>...</string>
</property>
<property name="arrowType">
<enum>Qt::UpArrow</enum>
</property>
</widget>
</item>
<item row="2" column="4">
<spacer name="horizontalSpacer_2">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item row="3" column="2" alignment="Qt::AlignHCenter|Qt::AlignVCenter">
<widget class="QToolButton" name="toolButton_down">
<property name="minimumSize">
<size>
<width>26</width>
<height>26</height>
</size>
</property>
<property name="text">
<string>...</string>
</property>
<property name="arrowType">
<enum>Qt::DownArrow</enum>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QToolButton" name="toolButton_left">
<property name="minimumSize">
<size>
<width>26</width>
<height>26</height>
</size>
</property>
<property name="text">
<string>...</string>
</property>
<property name="arrowType">
<enum>Qt::LeftArrow</enum>
</property>
</widget>
</item>
<item row="0" column="2">
<spacer name="verticalSpacer">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
<item row="2" column="3">
<widget class="QToolButton" name="toolButton_right">
<property name="minimumSize">
<size>
<width>26</width>
<height>26</height>
</size>
</property>
<property name="text">
<string>...</string>
</property>
<property name="arrowType">
<enum>Qt::RightArrow</enum>
</property>
</widget>
</item>
<item row="2" column="0">
<spacer name="horizontalSpacer">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item row="4" column="2">
<spacer name="verticalSpacer_2">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>40</height>
</size>
</property>
</spacer>
</item>
</layout>
</item>
</layout>
</widget>
</item>
<item>
<spacer name="verticalSpacer_4">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<property name="sizeType">
<enum>QSizePolicy::Minimum</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>20</width>
<height>18</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QGroupBox" name="motorControl_absolute">
<property name="minimumSize">
<size>
<width>261</width>
<height>195</height>
</size>
</property>
<property name="title">
<string>Move Absolute</string>
</property>
<layout class="QVBoxLayout" name="verticalLayout">
<item>
<widget class="QCheckBox" name="checkBox_save_with_go">
<property name="text">
<string>Save position with Go</string>
</property>
</widget>
</item>
<item>
<layout class="QGridLayout" name="gridLayout_3">
<item row="1" column="1">
<widget class="QDoubleSpinBox" name="spinBox_absolute_y">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>-500.000000000000000</double>
</property>
<property name="maximum">
<double>500.000000000000000</double>
</property>
<property name="singleStep">
<double>0.100000000000000</double>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QDoubleSpinBox" name="spinBox_absolute_x">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>-500.000000000000000</double>
</property>
<property name="maximum">
<double>500.000000000000000</double>
</property>
<property name="singleStep">
<double>0.100000000000000</double>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QLabel" name="label_7">
<property name="text">
<string>Y</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="0" column="0">
<widget class="QLabel" name="label_6">
<property name="text">
<string>X</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
</layout>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout_2">
<item>
<widget class="QPushButton" name="pushButton_save">
<property name="text">
<string>Save</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton_set">
<property name="text">
<string>Set</string>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton_go_absolute">
<property name="text">
<string>Go</string>
</property>
</widget>
</item>
</layout>
</item>
<item>
<widget class="QPushButton" name="pushButton_stop">
<property name="text">
<string>Stop Movement</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QTabWidget" name="tabWidget_tables">
<property name="enabled">
<bool>true</bool>
</property>
<property name="currentIndex">
<number>0</number>
</property>
<widget class="QWidget" name="tab_coordinates">
<attribute name="title">
<string>Coordinates</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_3">
<item>
<layout class="QHBoxLayout" name="horizontalLayout_3">
<item>
<spacer name="horizontalSpacer_3">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<property name="sizeHint" stdset="0">
<size>
<width>40</width>
<height>20</height>
</size>
</property>
</spacer>
</item>
<item>
<widget class="QLabel" name="label">
<property name="text">
<string>Entries Mode:</string>
</property>
</widget>
</item>
<item>
<widget class="QComboBox" name="comboBox_mode">
<item>
<property name="text">
<string>Individual</string>
</property>
</item>
<item>
<property name="text">
<string>Start/Stop</string>
</property>
</item>
</widget>
</item>
</layout>
</item>
<item>
<widget class="QTableWidget" name="tableWidget_coordinates">
<property name="selectionMode">
<enum>QAbstractItemView::MultiSelection</enum>
</property>
<property name="selectionBehavior">
<enum>QAbstractItemView::SelectRows</enum>
</property>
<column>
<property name="text">
<string>Show</string>
</property>
</column>
<column>
<property name="text">
<string>Move</string>
</property>
</column>
<column>
<property name="text">
<string>Tag</string>
</property>
</column>
<column>
<property name="text">
<string>X</string>
</property>
</column>
<column>
<property name="text">
<string>Y</string>
</property>
</column>
</widget>
</item>
<item>
<layout class="QGridLayout" name="gridLayout">
<item row="1" column="1">
<widget class="QPushButton" name="pushButton_resize_table">
<property name="text">
<string>Resize Table</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QCheckBox" name="checkBox_resize_auto">
<property name="text">
<string>Resize Auto</string>
</property>
<property name="checked">
<bool>true</bool>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QPushButton" name="pushButton_importCSV">
<property name="text">
<string>Import CSV</string>
</property>
</widget>
</item>
<item row="0" column="0">
<widget class="QPushButton" name="pushButton_exportCSV">
<property name="text">
<string>Export CSV</string>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QPushButton" name="pushButton_help">
<property name="text">
<string>Help</string>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QPushButton" name="pushButton_duplicate">
<property name="text">
<string>Duplicate Last Entry</string>
</property>
</widget>
</item>
</layout>
</item>
</layout>
</widget>
<widget class="QWidget" name="tab_settings">
<attribute name="title">
<string>Settings</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_4">
<item>
<widget class="QGroupBox" name="motorLimits">
<property name="enabled">
<bool>false</bool>
</property>
<property name="title">
<string>Motor Limits</string>
</property>
<layout class="QGridLayout" name="gridLayout_2">
<item row="2" column="1">
<widget class="QPushButton" name="pushButton_updateLimits">
<property name="text">
<string>Update</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QLabel" name="label_Y_max">
<property name="text">
<string>+ Y</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="4" column="1">
<widget class="QLabel" name="label_Y_min">
<property name="text">
<string>- Y</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_X_min">
<property name="text">
<string>- X</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="1" column="2">
<widget class="QLabel" name="label_X_max">
<property name="text">
<string>+ X</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="1" column="1">
<widget class="QDoubleSpinBox" name="spinBox_y_max">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>-1000.000000000000000</double>
</property>
<property name="maximum">
<double>1000.000000000000000</double>
</property>
</widget>
</item>
<item row="3" column="1">
<widget class="QDoubleSpinBox" name="spinBox_y_min">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>-1000.000000000000000</double>
</property>
<property name="maximum">
<double>1000.000000000000000</double>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QDoubleSpinBox" name="spinBox_x_min">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>-1000.000000000000000</double>
</property>
<property name="maximum">
<double>1000.000000000000000</double>
</property>
</widget>
</item>
<item row="2" column="2">
<widget class="QDoubleSpinBox" name="spinBox_x_max">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<double>-1000.000000000000000</double>
</property>
<property name="maximum">
<double>1000.000000000000000</double>
</property>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox_2">
<property name="title">
<string>Plotting Options</string>
</property>
<layout class="QGridLayout" name="gridLayout_5">
<item row="0" column="1" colspan="2">
<widget class="QSpinBox" name="spinBox_max_points">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<number>100</number>
</property>
<property name="maximum">
<number>10000</number>
</property>
<property name="singleStep">
<number>100</number>
</property>
<property name="value">
<number>5000</number>
</property>
</widget>
</item>
<item row="0" column="0">
<widget class="QLabel" name="label_15">
<property name="text">
<string>Max Points</string>
</property>
</widget>
</item>
<item row="2" column="1" colspan="2">
<widget class="QSpinBox" name="spinBox_scatter_size">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<number>1</number>
</property>
<property name="maximum">
<number>15</number>
</property>
<property name="value">
<number>5</number>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QLabel" name="label_11">
<property name="text">
<string>Scatter Size</string>
</property>
</widget>
</item>
<item row="3" column="0" colspan="3">
<widget class="QPushButton" name="pushButton_update_config">
<property name="text">
<string>Update Settings</string>
</property>
</widget>
</item>
<item row="1" column="1" colspan="2">
<widget class="QSpinBox" name="spinBox_num_dim_points">
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
<property name="minimum">
<number>10</number>
</property>
<property name="maximum">
<number>1000</number>
</property>
<property name="singleStep">
<number>10</number>
</property>
<property name="value">
<number>100</number>
</property>
</widget>
</item>
<item row="1" column="0">
<widget class="QLabel" name="label_16">
<property name="text">
<string>N dim</string>
</property>
</widget>
</item>
<item row="4" column="0" colspan="3">
<widget class="QPushButton" name="pushButton_enableGUI">
<property name="text">
<string>Enable Control GUI</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>
</layout>
</widget>
<widget class="QWidget" name="tab_queue">
<attribute name="title">
<string>Queue</string>
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_2">
<item>
<widget class="QLabel" name="label_3">
<property name="text">
<string>Work in progress</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item>
<widget class="QPushButton" name="pushButton_5">
<property name="enabled">
<bool>false</bool>
</property>
<property name="text">
<string>Reset Queue</string>
</property>
</widget>
</item>
<item>
<widget class="QTableWidget" name="tableWidget_2">
<property name="enabled">
<bool>false</bool>
</property>
<column>
<property name="text">
<string>queueID</string>
</property>
</column>
<column>
<property name="text">
<string>scan_id</string>
</property>
</column>
<column>
<property name="text">
<string>is_scan</string>
</property>
</column>
<column>
<property name="text">
<string>type</string>
</property>
</column>
<column>
<property name="text">
<string>scan_number</string>
</property>
</column>
<column>
<property name="text">
<string>IQ status</string>
</property>
</column>
</widget>
</item>
</layout>
</widget>
</widget>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>GraphicsLayoutWidget</class>
<extends>QGraphicsView</extends>
<header>pyqtgraph.h</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

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@@ -1,18 +0,0 @@
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
"""PySide6 port of the Qt Designer taskmenuextension example from Qt v6.x"""
import sys
from bec_ipython_client.main import BECIPythonClient
from qtpy.QtWidgets import QApplication
from bec_widgets.examples.plugin_example_pyside.tictactoe import TicTacToe
if __name__ == "__main__": # pragma: no cover
app = QApplication(sys.argv)
window = TicTacToe()
window.state = "-X-XO----"
window.show()
sys.exit(app.exec())

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@@ -1,13 +0,0 @@
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from qtpy.QtDesigner import QPyDesignerCustomWidgetCollection
from bec_widgets.examples.plugin_example_pyside.tictactoe import TicTacToe
from bec_widgets.examples.plugin_example_pyside.tictactoeplugin import TicTacToePlugin
# Set PYSIDE_DESIGNER_PLUGINS to point to this directory and load the plugin
if __name__ == "__main__": # pragma: no cover
QPyDesignerCustomWidgetCollection.addCustomWidget(TicTacToePlugin())

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@@ -1,4 +0,0 @@
{
"files": ["tictactoe.py", "main.py", "registertictactoe.py", "tictactoeplugin.py",
"tictactoetaskmenu.py"]
}

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@@ -1,135 +0,0 @@
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from qtpy.QtCore import Property, QPoint, QRect, QSize, Qt, Slot
from qtpy.QtGui import QPainter, QPen
from qtpy.QtWidgets import QWidget
EMPTY = "-"
CROSS = "X"
NOUGHT = "O"
DEFAULT_STATE = "---------"
class TicTacToe(QWidget): # pragma: no cover
def __init__(self, parent=None):
super().__init__(parent)
self._state = DEFAULT_STATE
self._turn_number = 0
def minimumSizeHint(self):
return QSize(200, 200)
def sizeHint(self):
return QSize(200, 200)
def setState(self, new_state):
self._turn_number = 0
self._state = DEFAULT_STATE
for position in range(min(9, len(new_state))):
mark = new_state[position]
if mark == CROSS or mark == NOUGHT:
self._turn_number += 1
self._change_state_at(position, mark)
position += 1
self.update()
def state(self):
return self._state
@Slot()
def clear_board(self):
self._state = DEFAULT_STATE
self._turn_number = 0
self.update()
def _change_state_at(self, pos, new_state):
self._state = self._state[:pos] + new_state + self._state[pos + 1 :]
def mousePressEvent(self, event):
if self._turn_number == 9:
self.clear_board()
return
for position in range(9):
cell = self._cell_rect(position)
if cell.contains(event.position().toPoint()):
if self._state[position] == EMPTY:
new_state = CROSS if self._turn_number % 2 == 0 else NOUGHT
self._change_state_at(position, new_state)
self._turn_number += 1
self.update()
def paintEvent(self, event):
with QPainter(self) as painter:
painter.setRenderHint(QPainter.Antialiasing)
painter.setPen(QPen(Qt.darkGreen, 1))
painter.drawLine(self._cell_width(), 0, self._cell_width(), self.height())
painter.drawLine(2 * self._cell_width(), 0, 2 * self._cell_width(), self.height())
painter.drawLine(0, self._cell_height(), self.width(), self._cell_height())
painter.drawLine(0, 2 * self._cell_height(), self.width(), 2 * self._cell_height())
painter.setPen(QPen(Qt.darkBlue, 2))
for position in range(9):
cell = self._cell_rect(position)
if self._state[position] == CROSS:
painter.drawLine(cell.topLeft(), cell.bottomRight())
painter.drawLine(cell.topRight(), cell.bottomLeft())
elif self._state[position] == NOUGHT:
painter.drawEllipse(cell)
painter.setPen(QPen(Qt.yellow, 3))
for position in range(0, 8, 3):
if (
self._state[position] != EMPTY
and self._state[position + 1] == self._state[position]
and self._state[position + 2] == self._state[position]
):
y = self._cell_rect(position).center().y()
painter.drawLine(0, y, self.width(), y)
self._turn_number = 9
for position in range(3):
if (
self._state[position] != EMPTY
and self._state[position + 3] == self._state[position]
and self._state[position + 6] == self._state[position]
):
x = self._cell_rect(position).center().x()
painter.drawLine(x, 0, x, self.height())
self._turn_number = 9
if (
self._state[0] != EMPTY
and self._state[4] == self._state[0]
and self._state[8] == self._state[0]
):
painter.drawLine(0, 0, self.width(), self.height())
self._turn_number = 9
if (
self._state[2] != EMPTY
and self._state[4] == self._state[2]
and self._state[6] == self._state[2]
):
painter.drawLine(0, self.height(), self.width(), 0)
self._turn_number = 9
def _cell_rect(self, position):
h_margin = self.width() / 30
v_margin = self.height() / 30
row = int(position / 3)
column = position - 3 * row
pos = QPoint(column * self._cell_width() + h_margin, row * self._cell_height() + v_margin)
size = QSize(self._cell_width() - 2 * h_margin, self._cell_height() - 2 * v_margin)
return QRect(pos, size)
def _cell_width(self):
return self.width() / 3
def _cell_height(self):
return self.height() / 3
state = Property(str, state, setState)

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@@ -1,73 +0,0 @@
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import os
from qtpy.QtDesigner import QDesignerCustomWidgetInterface
import bec_widgets
from bec_widgets.examples.plugin_example_pyside.tictactoe import TicTacToe
from bec_widgets.examples.plugin_example_pyside.tictactoetaskmenu import TicTacToeTaskMenuFactory
from bec_widgets.utils.bec_designer import designer_material_icon
DOM_XML = """
<ui language='c++'>
<widget class='TicTacToe' name='ticTacToe'>
<property name='geometry'>
<rect>
<x>0</x>
<y>0</y>
<width>200</width>
<height>200</height>
</rect>
</property>
<property name='state'>
<string>-X-XO----</string>
</property>
</widget>
</ui>
"""
MODULE_PATH = os.path.dirname(bec_widgets.__file__)
class TicTacToePlugin(QDesignerCustomWidgetInterface): # pragma: no cover
def __init__(self):
super().__init__()
self._form_editor = None
def createWidget(self, parent):
t = TicTacToe(parent)
return t
def domXml(self):
return DOM_XML
def group(self):
return "Games"
def icon(self):
return designer_material_icon("sports_esports")
def includeFile(self):
return "tictactoe"
def initialize(self, form_editor):
self._form_editor = form_editor
manager = form_editor.extensionManager()
iid = TicTacToeTaskMenuFactory.task_menu_iid()
manager.registerExtensions(TicTacToeTaskMenuFactory(manager), iid)
def isContainer(self):
return False
def isInitialized(self):
return self._form_editor is not None
def name(self):
return "TicTacToe"
def toolTip(self):
return "Tic Tac Toe Example, demonstrating class QDesignerTaskMenuExtension (Python)"
def whatsThis(self):
return self.toolTip()

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@@ -1,68 +0,0 @@
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from qtpy.QtDesigner import QExtensionFactory, QPyDesignerTaskMenuExtension
from qtpy.QtGui import QAction
from qtpy.QtWidgets import QDialog, QDialogButtonBox, QVBoxLayout
from bec_widgets.examples.plugin_example_pyside.tictactoe import TicTacToe
from bec_widgets.utils.error_popups import SafeSlot as Slot
class TicTacToeDialog(QDialog): # pragma: no cover
def __init__(self, parent):
super().__init__(parent)
layout = QVBoxLayout(self)
self._ticTacToe = TicTacToe(self)
layout.addWidget(self._ticTacToe)
button_box = QDialogButtonBox(
QDialogButtonBox.Ok | QDialogButtonBox.Cancel | QDialogButtonBox.Reset
)
button_box.accepted.connect(self.accept)
button_box.rejected.connect(self.reject)
reset_button = button_box.button(QDialogButtonBox.Reset)
reset_button.clicked.connect(self._ticTacToe.clear_board)
layout.addWidget(button_box)
def set_state(self, new_state):
self._ticTacToe.setState(new_state)
def state(self):
return self._ticTacToe.state
class TicTacToeTaskMenu(QPyDesignerTaskMenuExtension):
def __init__(self, ticTacToe, parent):
super().__init__(parent)
self._ticTacToe = ticTacToe
self._edit_state_action = QAction("Edit State...", None)
self._edit_state_action.triggered.connect(self._edit_state)
def taskActions(self):
return [self._edit_state_action]
def preferredEditAction(self):
return self._edit_state_action
@Slot()
def _edit_state(self):
dialog = TicTacToeDialog(self._ticTacToe)
dialog.set_state(self._ticTacToe.state)
if dialog.exec() == QDialog.Accepted:
self._ticTacToe.state = dialog.state()
class TicTacToeTaskMenuFactory(QExtensionFactory):
def __init__(self, extension_manager):
super().__init__(extension_manager)
@staticmethod
def task_menu_iid():
return "org.qt-project.Qt.Designer.TaskMenu"
def createExtension(self, object, iid, parent):
if iid != TicTacToeTaskMenuFactory.task_menu_iid():
return None
if object.__class__.__name__ != "TicTacToe":
return None
return TicTacToeTaskMenu(object, parent)

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@@ -0,0 +1,155 @@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Form</class>
<widget class="QWidget" name="Form">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>845</width>
<height>635</height>
</rect>
</property>
<property name="windowTitle">
<string>Line Plot</string>
</property>
<layout class="QGridLayout" name="gridLayout">
<item row="0" column="0">
<widget class="QSplitter" name="splitter">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
<widget class="QSplitter" name="splitter_plot">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Expanding">
<horstretch>1</horstretch>
<verstretch>1</verstretch>
</sizepolicy>
</property>
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
<widget class="GraphicsLayoutWidget" name="glw_plot"/>
<widget class="GraphicsLayoutWidget" name="glw_image"/>
</widget>
<widget class="QWidget" name="">
<layout class="QVBoxLayout" name="verticalLayout" stretch="1,1,1,15">
<item>
<widget class="QPushButton" name="pushButton_generate">
<property name="text">
<string>Generate 1D and 2D data without stream</string>
</property>
</widget>
</item>
<item>
<widget class="QGroupBox" name="groupBox">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Expanding">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="title">
<string>1st angle of azimutal segment (deg)</string>
</property>
<layout class="QHBoxLayout" name="horizontalLayout">
<item>
<widget class="QDoubleSpinBox" name="doubleSpinBox">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Fixed">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<property name="maximum">
<double>360.000000000000000</double>
</property>
<property name="singleStep">
<double>0.250000000000000</double>
</property>
</widget>
</item>
<item>
<widget class="QComboBox" name="comboBox">
<property name="sizePolicy">
<sizepolicy hsizetype="Expanding" vsizetype="Expanding">
<horstretch>0</horstretch>
<verstretch>0</verstretch>
</sizepolicy>
</property>
<item>
<property name="text">
<string>f1amp</string>
</property>
</item>
<item>
<property name="text">
<string>f2amp</string>
</property>
</item>
<item>
<property name="text">
<string>f2 phase</string>
</property>
</item>
</widget>
</item>
</layout>
</widget>
</item>
<item>
<layout class="QHBoxLayout" name="horizontalLayout_2">
<item>
<widget class="QLabel" name="label">
<property name="text">
<string>Precision</string>
</property>
</widget>
</item>
<item>
<widget class="QSpinBox" name="spinBox_precision">
<property name="value">
<number>4</number>
</property>
</widget>
</item>
</layout>
</item>
<item>
<widget class="QTableWidget" name="cursor_table">
<property name="textElideMode">
<enum>Qt::ElideMiddle</enum>
</property>
<column>
<property name="text">
<string>Display</string>
</property>
</column>
<column>
<property name="text">
<string>X</string>
</property>
</column>
<column>
<property name="text">
<string>Y</string>
</property>
</column>
</widget>
</item>
</layout>
</widget>
</widget>
</item>
</layout>
</widget>
<customwidgets>
<customwidget>
<class>GraphicsLayoutWidget</class>
<extends>QGraphicsView</extends>
<header>pyqtgraph.h</header>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>

View File

@@ -0,0 +1,337 @@
import os
import threading
import time
import numpy as np
import pyqtgraph
import pyqtgraph as pg
from bec_lib import messages
from bec_lib.endpoints import MessageEndpoints
from bec_lib.redis_connector import RedisConnector
from pyqtgraph import mkBrush, mkPen
from pyqtgraph.Qt import QtCore, QtWidgets, uic
from pyqtgraph.Qt.QtCore import pyqtSignal
from qtpy.QtCore import Slot as pyqtSlot
from qtpy.QtWidgets import QTableWidgetItem
from bec_widgets.utils import Colors, Crosshair
from bec_widgets.utils.bec_dispatcher import BECDispatcher
class StreamPlot(QtWidgets.QWidget):
update_signal = pyqtSignal()
roi_signal = pyqtSignal(tuple)
def __init__(self, name="", y_value_list=["gauss_bpm"], client=None, parent=None) -> None:
"""
Basic plot widget for displaying scan data.
Args:
name (str, optional): Name of the plot. Defaults to "".
y_value_list (list, optional): List of signals to be plotted. Defaults to ["gauss_bpm"].
"""
# Client and device manager from BEC
self.client = BECDispatcher().client if client is None else client
super(StreamPlot, self).__init__()
# Set style for pyqtgraph plots
pg.setConfigOption("background", "w")
pg.setConfigOption("foreground", "k")
current_path = os.path.dirname(__file__)
uic.loadUi(os.path.join(current_path, "line_plot.ui"), self)
self._idle_time = 100
self.connector = RedisConnector(["localhost:6379"])
self.y_value_list = y_value_list
self.previous_y_value_list = None
self.plotter_data_x = []
self.plotter_data_y = []
self.plotter_scan_id = None
self._current_proj = None
self._current_metadata_ep = "px_stream/projection_{}/metadata"
self.proxy_update = pg.SignalProxy(self.update_signal, rateLimit=25, slot=self.update)
self._data_retriever_thread_exit_event = threading.Event()
self.data_retriever = threading.Thread(
target=self.on_projection, args=(self._data_retriever_thread_exit_event,), daemon=True
)
self.data_retriever.start()
##########################
# UI
##########################
self.init_ui()
self.init_curves()
self.hook_crosshair()
def close(self):
super().close()
self._data_retriever_thread_exit_event.set()
self.data_retriever.join()
def init_ui(self):
"""Setup all ui elements"""
##########################
# 1D Plot
##########################
# LabelItem for ROI
self.label_plot = pg.LabelItem(justify="center")
self.glw_plot.addItem(self.label_plot)
self.label_plot.setText("ROI region")
# ROI selector - so far from [-1,1] #TODO update to scale with xrange
self.roi_selector = pg.LinearRegionItem([-1, 1])
self.glw_plot.nextRow() # TODO update of cursor
self.label_plot_moved = pg.LabelItem(justify="center")
self.glw_plot.addItem(self.label_plot_moved)
self.label_plot_moved.setText("Actual coordinates (X, Y)")
# Label for coordinates clicked
self.glw_plot.nextRow()
self.label_plot_clicked = pg.LabelItem(justify="center")
self.glw_plot.addItem(self.label_plot_clicked)
self.label_plot_clicked.setText("Clicked coordinates (X, Y)")
# 1D PlotItem
self.glw_plot.nextRow()
self.plot = pg.PlotItem()
self.plot.setLogMode(True, True)
self.glw_plot.addItem(self.plot)
self.plot.addLegend()
##########################
# 2D Plot
##########################
# Label for coordinates moved
self.label_image_moved = pg.LabelItem(justify="center")
self.glw_image.addItem(self.label_image_moved)
self.label_image_moved.setText("Actual coordinates (X, Y)")
# Label for coordinates clicked
self.glw_image.nextRow()
self.label_image_clicked = pg.LabelItem(justify="center")
self.glw_image.addItem(self.label_image_clicked)
self.label_image_clicked.setText("Clicked coordinates (X, Y)")
# TODO try to lock aspect ratio with view
# # Create a window
# win = pg.GraphicsLayoutWidget()
# win.show()
#
# # Create a ViewBox
# view = win.addViewBox()
#
# # Lock the aspect ratio
# view.setAspectLocked(True)
# # Create an ImageItem
# image_item = pg.ImageItem(np.random.random((100, 100)))
#
# # Add the ImageItem to the ViewBox
# view.addItem(image_item)
# 2D ImageItem
self.glw_image.nextRow()
self.plot_image = pg.PlotItem()
self.glw_image.addItem(self.plot_image)
def init_curves(self):
# init of 1D plot
self.plot.clear()
self.curves = []
self.pens = []
self.brushs = []
self.color_list = Colors.golden_angle_color(colormap="CET-R2", num=len(self.y_value_list))
for ii, y_value in enumerate(self.y_value_list):
pen = mkPen(color=self.color_list[ii], width=2, style=QtCore.Qt.DashLine)
brush = mkBrush(color=self.color_list[ii])
curve = pg.PlotDataItem(symbolBrush=brush, pen=pen, skipFiniteCheck=True, name=y_value)
self.plot.addItem(curve)
self.curves.append(curve)
self.pens.append(pen)
self.brushs.append(brush)
# check if roi selector is in the plot
if self.roi_selector not in self.plot.items:
self.plot.addItem(self.roi_selector)
# init of 2D plot
self.plot_image.clear()
self.img = pg.ImageItem()
self.plot_image.addItem(self.img)
# hooking signals
self.hook_crosshair()
self.init_table()
def splitter_sizes(self): ...
def hook_crosshair(self):
self.crosshair_1d = Crosshair(self.plot, precision=4)
self.crosshair_1d.coordinatesChanged1D.connect(
lambda x, y: self.label_plot_moved.setText(f"Moved : ({x}, {y})")
)
self.crosshair_1d.coordinatesClicked1D.connect(
lambda x, y: self.label_plot_clicked.setText(f"Moved : ({x}, {y})")
)
self.crosshair_1d.coordinatesChanged1D.connect(
lambda x, y: self.update_table(table_widget=self.cursor_table, x=x, y_values=y)
)
self.crosshair_2D = Crosshair(self.plot_image)
self.crosshair_2D.coordinatesChanged2D.connect(
lambda x, y: self.label_image_moved.setText(f"Moved : ({x}, {y})")
)
self.crosshair_2D.coordinatesClicked2D.connect(
lambda x, y: self.label_image_clicked.setText(f"Moved : ({x}, {y})")
)
# ROI
self.roi_selector.sigRegionChangeFinished.connect(self.get_roi_region)
def get_roi_region(self):
"""For testing purpose now, get roi region and print it to self.label as tuple"""
region = self.roi_selector.getRegion()
self.label_plot.setText(f"x = {(10 ** region[0]):.4f}, y ={(10 ** region[1]):.4f}")
return_dict = {
"horiz_roi": [
np.where(self.plotter_data_x[0] > 10 ** region[0])[0][0],
np.where(self.plotter_data_x[0] < 10 ** region[1])[0][-1],
]
}
msg = messages.DeviceMessage(signals=return_dict).dumps()
self.connector.set_and_publish("px_stream/gui_event", msg=msg)
self.roi_signal.emit(region)
def init_table(self):
# Init number of rows in table according to n of devices
self.cursor_table.setRowCount(len(self.y_value_list))
# self.table.setHorizontalHeaderLabels(["(X, Y) - Moved", "(X, Y) - Clicked"]) #TODO can be dynamic
self.cursor_table.setVerticalHeaderLabels(self.y_value_list)
self.cursor_table.resizeColumnsToContents()
def update_table(self, table_widget, x, y_values):
for i, y in enumerate(y_values):
table_widget.setItem(i, 1, QTableWidgetItem(str(x)))
table_widget.setItem(i, 2, QTableWidgetItem(str(y)))
table_widget.resizeColumnsToContents()
def update(self):
"""Update the plot with the new data."""
# check if QTable was initialised and if list of devices was changed
# if self.y_value_list != self.previous_y_value_list:
# self.setup_cursor_table()
# self.previous_y_value_list = self.y_value_list.copy() if self.y_value_list else None
self.curves[0].setData(self.plotter_data_x[0], self.plotter_data_y[0])
@staticmethod
def flip_even_rows(arr):
arr_copy = np.copy(arr) # Create a writable copy
arr_copy[1::2, :] = arr_copy[1::2, ::-1]
return arr_copy
@staticmethod
def remove_curve_by_name(plot: pyqtgraph.PlotItem, name: str) -> None:
# def remove_curve_by_name(plot: pyqtgraph.PlotItem, checkbox: QtWidgets.QCheckBox, name: str) -> None:
"""Removes a curve from the given plot by the specified name.
Args:
plot (pyqtgraph.PlotItem): The plot from which to remove the curve.
name (str): The name of the curve to remove.
"""
# if checkbox.isChecked():
for item in plot.items:
if isinstance(item, pg.PlotDataItem) and getattr(item, "opts", {}).get("name") == name:
plot.removeItem(item)
return
# else:
# return
def on_projection(self, exit_event):
while not exit_event.is_set():
if self._current_proj is None:
time.sleep(0.1)
continue
endpoint = f"px_stream/projection_{self._current_proj}/data"
msgs = self.client.connector.lrange(topic=endpoint, start=-1, end=-1)
data = msgs
if not data:
continue
with np.errstate(divide="ignore", invalid="ignore"):
self.plotter_data_y = [
np.sum(
np.sum(data[-1].content["signals"]["data"] * self._current_norm, axis=1)
/ np.sum(self._current_norm, axis=0),
axis=0,
).squeeze()
]
self.update_signal.emit()
@pyqtSlot(dict, dict)
def on_dap_update(self, data: dict, metadata: dict):
flipped_data = self.flip_even_rows(data["data"]["z"])
self.img.setImage(flipped_data)
@pyqtSlot(dict, dict)
def new_proj(self, content: dict, _metadata: dict):
proj_nr = content["signals"]["proj_nr"]
endpoint = f"px_stream/projection_{proj_nr}/metadata"
msg_raw = self.client.connector.get(topic=endpoint)
msg = messages.DeviceMessage.loads(msg_raw)
self._current_q = msg.content["signals"]["q"]
self._current_norm = msg.content["signals"]["norm_sum"]
self._current_metadata = msg.content["signals"]["metadata"]
self.plotter_data_x = [self._current_q]
self._current_proj = proj_nr
if __name__ == "__main__":
import argparse
# from bec_widgets import ctrl_c # TODO uncomment when ctrl_c is ready to be compatible with qtpy
parser = argparse.ArgumentParser()
parser.add_argument(
"--signals", help="specify recorded signals", nargs="+", default=["gauss_bpm"]
)
# default = ["gauss_bpm", "bpm4i", "bpm5i", "bpm6i", "xert"],
value = parser.parse_args()
print(f"Plotting signals for: {', '.join(value.signals)}")
# Client from dispatcher
bec_dispatcher = BECDispatcher()
client = bec_dispatcher.client
app = QtWidgets.QApplication([])
# ctrl_c.setup(app) # TODO uncomment when ctrl_c is ready to be compatible with qtpy
plot = StreamPlot(y_value_list=value.signals, client=client)
bec_dispatcher.connect_slot(plot.new_proj, "px_stream/proj_nr")
bec_dispatcher.connect_slot(
plot.on_dap_update, MessageEndpoints.processed_data("px_dap_worker")
)
plot.show()
# client.callbacks.register("scan_segment", plot, sync=False)
app.exec()

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@@ -1,285 +0,0 @@
from unittest.mock import MagicMock
from bec_lib.device import Device as BECDevice
from bec_lib.device import Positioner as BECPositioner
from bec_lib.device import ReadoutPriority
from bec_lib.devicemanager import DeviceContainer
class FakeDevice(BECDevice):
"""Fake minimal positioner class for testing."""
def __init__(self, name, enabled=True, readout_priority=ReadoutPriority.MONITORED):
super().__init__(name=name)
self._enabled = enabled
self.signals = {self.name: {"value": 1.0}}
self.description = {self.name: {"source": self.name, "dtype": "number", "shape": []}}
self._readout_priority = readout_priority
self._config = {
"readoutPriority": "baseline",
"deviceClass": "ophyd.Device",
"deviceConfig": {},
"deviceTags": {"user device"},
"enabled": enabled,
"readOnly": False,
"name": self.name,
}
@property
def readout_priority(self):
return self._readout_priority
@readout_priority.setter
def readout_priority(self, value):
self._readout_priority = value
@property
def limits(self) -> tuple[float, float]:
return self._limits
@limits.setter
def limits(self, value: tuple[float, float]):
self._limits = value
def __contains__(self, item):
return item == self.name
@property
def _hints(self):
return [self.name]
def set_value(self, fake_value: float = 1.0) -> None:
"""
Setup fake value for device readout
Args:
fake_value(float): Desired fake value
"""
self.signals[self.name]["value"] = fake_value
def describe(self) -> dict:
"""
Get the description of the device
Returns:
dict: Description of the device
"""
return self.description
class FakePositioner(BECPositioner):
def __init__(
self,
name,
enabled=True,
limits=None,
read_value=1.0,
readout_priority=ReadoutPriority.MONITORED,
):
super().__init__(name=name)
# self.limits = limits if limits is not None else [0.0, 0.0]
self.read_value = read_value
self.setpoint_value = read_value
self.motor_is_moving_value = 0
self._enabled = enabled
self._limits = limits
self._readout_priority = readout_priority
self.signals = {self.name: {"value": 1.0}}
self.description = {self.name: {"source": self.name, "dtype": "number", "shape": []}}
self._config = {
"readoutPriority": "baseline",
"deviceClass": "ophyd_devices.SimPositioner",
"deviceConfig": {"delay": 1, "tolerance": 0.01, "update_frequency": 400},
"deviceTags": {"user motors"},
"enabled": enabled,
"readOnly": False,
"name": self.name,
}
self._info = {
"signals": {
"readback": {
"kind_str": "hinted",
"component_name": "readback",
"obj_name": self.name,
}, # hinted
"setpoint": {
"kind_str": "normal",
"component_name": "setpoint",
"obj_name": f"{self.name}_setpoint",
}, # normal
"velocity": {
"kind_str": "config",
"component_name": "velocity",
"obj_name": f"{self.name}_velocity",
}, # config
}
}
self.signals = {
self.name: {"value": self.read_value},
f"{self.name}_setpoint": {"value": self.setpoint_value},
f"{self.name}_motor_is_moving": {"value": self.motor_is_moving_value},
}
@property
def readout_priority(self):
return self._readout_priority
@readout_priority.setter
def readout_priority(self, value):
self._readout_priority = value
@property
def enabled(self) -> bool:
return self._enabled
@enabled.setter
def enabled(self, value: bool):
self._enabled = value
@property
def limits(self) -> tuple[float, float]:
return self._limits
@limits.setter
def limits(self, value: tuple[float, float]):
self._limits = value
def __contains__(self, item):
return item == self.name
@property
def _hints(self):
return [self.name]
def set_value(self, fake_value: float = 1.0) -> None:
"""
Setup fake value for device readout
Args:
fake_value(float): Desired fake value
"""
self.read_value = fake_value
def describe(self) -> dict:
"""
Get the description of the device
Returns:
dict: Description of the device
"""
return self.description
@property
def precision(self):
return 3
def set_read_value(self, value):
self.read_value = value
def read(self):
return self.signals
def set_limits(self, limits):
self.limits = limits
def move(self, value, relative=False):
"""Simulates moving the device to a new position."""
if relative:
self.read_value += value
else:
self.read_value = value
# Respect the limits
self.read_value = max(min(self.read_value, self.limits[1]), self.limits[0])
@property
def readback(self):
return MagicMock(get=MagicMock(return_value=self.read_value))
class Positioner(FakePositioner):
"""just placeholder for testing embedded isinstance check in DeviceCombobox"""
def __init__(self, name="test", limits=None, read_value=1.0, enabled=True):
super().__init__(name, limits=limits, read_value=read_value, enabled=enabled)
class Device(FakeDevice):
"""just placeholder for testing embedded isinstance check in DeviceCombobox"""
def __init__(self, name, enabled=True):
super().__init__(name, enabled)
class DMMock:
def __init__(self):
self.devices = DeviceContainer()
self.enabled_devices = [device for device in self.devices if device.enabled]
def add_devices(self, devices: list):
"""
Add devices to the DeviceContainer.
Args:
devices (list): List of device instances to add.
"""
for device in devices:
self.devices[device.name] = device
def get_bec_signals(self, signal_class_name: str):
"""
Emulate DeviceManager.get_bec_signals for unit-tests.
For “AsyncSignal” we list every device whose readout_priority is
ReadoutPriority.ASYNC and build a minimal tuple
(device_name, signal_name, signal_info_dict) that matches the real
API shape used by Waveform._check_async_signal_found.
"""
signals: list[tuple[str, str, dict]] = []
if signal_class_name != "AsyncSignal":
return signals
for device in self.devices.values():
if getattr(device, "readout_priority", None) == ReadoutPriority.ASYNC:
device_name = device.name
signal_name = device.name # primary signal in our mocks
signal_info = {
"component_name": signal_name,
"obj_name": signal_name,
"kind_str": "hinted",
"signal_class": signal_class_name,
"metadata": {
"connected": True,
"precision": None,
"read_access": True,
"timestamp": 0.0,
"write_access": True,
},
}
signals.append((device_name, signal_name, signal_info))
return signals
DEVICES = [
FakePositioner("samx", limits=[-10, 10], read_value=2.0),
FakePositioner("samy", limits=[-5, 5], read_value=3.0),
FakePositioner("samz", limits=[-8, 8], read_value=4.0),
FakePositioner("aptrx", limits=None, read_value=4.0),
FakePositioner("aptry", limits=None, read_value=5.0),
FakeDevice("gauss_bpm"),
FakeDevice("gauss_adc1"),
FakeDevice("gauss_adc2"),
FakeDevice("gauss_adc3"),
FakeDevice("bpm4i"),
FakeDevice("bpm3a"),
FakeDevice("bpm3i"),
FakeDevice("eiger", readout_priority=ReadoutPriority.ASYNC),
FakeDevice("waveform1d"),
FakeDevice("async_device", readout_priority=ReadoutPriority.ASYNC),
Positioner("test", limits=[-10, 10], read_value=2.0),
Device("test_device"),
]
def check_remote_data_size(widget, plot_name, num_elements):
"""
Check if the remote data has the correct number of elements.
Used in the qtbot.waitUntil function.
"""
return len(widget.get_all_data()[plot_name]["x"]) == num_elements

View File

@@ -1,5 +1,3 @@
from qtpy.QtWebEngineWidgets import QWebEngineView
from .bec_connector import BECConnector, ConnectionConfig
from .bec_dispatcher import BECDispatcher
from .bec_table import BECTable
@@ -9,5 +7,4 @@ from .crosshair import Crosshair
from .entry_validator import EntryValidator
from .layout_manager import GridLayoutManager
from .rpc_decorator import register_rpc_methods, rpc_public
from .ui_loader import UILoader
from .validator_delegate import DoubleValidationDelegate

View File

@@ -1,31 +1,16 @@
# pylint: disable = no-name-in-module,missing-module-docstring
from __future__ import annotations
import os
import time
import traceback
import uuid
from datetime import datetime
from typing import TYPE_CHECKING, Optional
from typing import Optional, Type
from bec_lib.logger import bec_logger
from bec_lib.utils.import_utils import lazy_import_from
from bec_lib.utils.import_utils import lazy_import, lazy_import_from
from pydantic import BaseModel, Field, field_validator
from qtpy.QtCore import QObject, QRunnable, QThreadPool, QTimer, Signal
from qtpy.QtWidgets import QApplication
from qtpy.QtCore import Slot as pyqtSlot
from bec_widgets.cli.rpc.rpc_register import RPCRegister
from bec_widgets.utils.error_popups import ErrorPopupUtility, SafeSlot
from bec_widgets.utils.widget_io import WidgetHierarchy
from bec_widgets.utils.yaml_dialog import load_yaml, load_yaml_gui, save_yaml, save_yaml_gui
from bec_widgets.cli.rpc_register import RPCRegister
if TYPE_CHECKING: # pragma: no cover
from bec_widgets.utils.bec_dispatcher import BECDispatcher
from bec_widgets.widgets.containers.dock import BECDock
else:
BECDispatcher = lazy_import_from("bec_widgets.utils.bec_dispatcher", ("BECDispatcher",))
logger = bec_logger.logger
BECDispatcher = lazy_import_from("bec_widgets.utils.bec_dispatcher", ("BECDispatcher",))
class ConnectionConfig(BaseModel):
@@ -35,308 +20,64 @@ class ConnectionConfig(BaseModel):
gui_id: Optional[str] = Field(
default=None, validate_default=True, description="The GUI ID of the widget."
)
model_config: dict = {"validate_assignment": True}
@field_validator("gui_id")
@classmethod
def generate_gui_id(cls, v, values):
"""Generate a GUI ID if none is provided."""
if v is None:
widget_class = values.data["widget_class"]
v = f"{widget_class}_{datetime.now().strftime('%Y_%m_%d_%H_%M_%S_%f')}"
v = f"{widget_class}_{str(time.time())}"
return v
return v
class WorkerSignals(QObject):
progress = Signal(dict)
completed = Signal()
class Worker(QRunnable):
"""
Worker class to run a function in a separate thread.
"""
def __init__(self, func, *args, **kwargs):
super().__init__()
self.signals = WorkerSignals()
self.func = func
self.args = args
self.kwargs = kwargs
def run(self):
"""
Run the specified function in the thread.
"""
self.func(*self.args, **self.kwargs)
self.signals.completed.emit()
class BECConnector:
"""Connection mixin class to handle BEC client and device manager"""
"""Connection mixin class for all BEC widgets, to handle BEC client and device manager"""
USER_ACCESS = ["_config_dict", "_get_all_rpc", "_rpc_id"]
EXIT_HANDLERS = {}
def __init__(
self,
client=None,
config: ConnectionConfig | None = None,
gui_id: str | None = None,
object_name: str | None = None,
parent_dock: BECDock | None = None, # TODO should go away -> issue created #473
root_widget: bool = False,
**kwargs,
):
"""
BECConnector mixin class to handle BEC client and device manager.
Args:
client(BECClient, optional): The BEC client.
config(ConnectionConfig, optional): The connection configuration with specific gui id.
gui_id(str, optional): The GUI ID.
object_name(str, optional): The object name.
parent_dock(BECDock, optional): The parent dock.# TODO should go away -> issue created #473
root_widget(bool, optional): If set to True, the parent_id will be always set to None, thus enforcing that the widget is accessible as a root widget of the BECGuiClient object.
**kwargs:
"""
# Extract object_name from kwargs to not pass it to Qt class
object_name = object_name or kwargs.pop("objectName", None)
# Ensure the parent is always the first argument for QObject
parent = kwargs.pop("parent", None)
# This initializes the QObject or any qt related class BECConnector has to be used from this line down with QObject, otherwise hierarchy logic will not work
super().__init__(parent=parent, **kwargs)
assert isinstance(
self, QObject
), "BECConnector must be used with a QObject or any qt related class."
# flag to check if the object was destroyed and its cleanup was called
self._destroyed = False
USER_ACCESS = ["config_dict", "get_all_rpc"]
def __init__(self, client=None, config: ConnectionConfig = None, gui_id: str = None):
# BEC related connections
self.bec_dispatcher = BECDispatcher(client=client)
self.client = self.bec_dispatcher.client if client is None else client
self._parent_dock = parent_dock # TODO also remove at some point -> issue created #473
self.rpc_register = RPCRegister()
if not self.client in BECConnector.EXIT_HANDLERS:
# register function to clean connections at exit;
# the function depends on BECClient, and BECDispatcher
@SafeSlot()
def terminate(client=self.client, dispatcher=self.bec_dispatcher):
logger.info("Disconnecting", repr(dispatcher))
dispatcher.disconnect_all()
logger.info("Shutting down BEC Client", repr(client))
client.shutdown()
BECConnector.EXIT_HANDLERS[self.client] = terminate
QApplication.instance().aboutToQuit.connect(terminate)
if config:
self.config = config
self.config.widget_class = self.__class__.__name__
else:
logger.debug(
print(
f"No initial config found for {self.__class__.__name__}.\n"
f"Initializing with default config."
)
self.config = ConnectionConfig(widget_class=self.__class__.__name__)
# If the gui_id is passed, it should be respected. However, this should be revisted since
# the gui_id has to be unique, and may no longer be.
if gui_id:
self.config.gui_id = gui_id
self.gui_id: str = gui_id # Keep namespace in sync
self.gui_id = gui_id
else:
self.gui_id: str = self.config.gui_id # type: ignore
self.gui_id = self.config.gui_id
if object_name is not None:
self.setObjectName(object_name)
# 1) If no objectName is set, set the initial name
if not self.objectName():
self.setObjectName(self.__class__.__name__)
self.object_name = self.objectName()
# 2) Enforce unique objectName among siblings with the same BECConnector parent
self.setParent(parent)
if isinstance(self.parent(), QObject) and hasattr(self, "cleanup"):
self.parent().destroyed.connect(self._run_cleanup_on_deleted_parent)
# Error popups
self.error_utility = ErrorPopupUtility()
self._thread_pool = QThreadPool.globalInstance()
# Store references to running workers so they're not garbage collected prematurely.
self._workers = []
# If set to True, the parent_id will be always set to None, thus enforcing that the widget is accessible as a root widget of the BECGuiClient object.
self.root_widget = root_widget
QTimer.singleShot(0, self._update_object_name)
@property
def parent_id(self) -> str | None:
try:
if self.root_widget:
return None
connector_parent = WidgetHierarchy._get_becwidget_ancestor(self)
return connector_parent.gui_id if connector_parent else None
except:
logger.error(f"Error getting parent_id for {self.__class__.__name__}")
def _run_cleanup_on_deleted_parent(self) -> None:
"""
Run cleanup on the deleted parent.
This method is called when the parent is deleted.
"""
if not hasattr(self, "cleanup"):
return
try:
if not self._destroyed:
self.cleanup()
self._destroyed = True
except Exception:
content = traceback.format_exc()
logger.info(
"Failed to run cleanup on deleted parent. "
f"This is not necessarily an error as the parent may be deleted before the child and includes already a cleanup. The following exception was raised:\n{content}"
)
def change_object_name(self, name: str) -> None:
"""
Change the object name of the widget. Unregister old name and register the new one.
Args:
name (str): The new object name.
"""
self.rpc_register.remove_rpc(self)
self.setObjectName(name.replace("-", "_").replace(" ", "_"))
QTimer.singleShot(0, self._update_object_name)
def _update_object_name(self) -> None:
"""
Enforce a unique object name among siblings and register the object for RPC.
This method is called through a single shot timer kicked off in the constructor.
"""
# 1) Enforce unique objectName among siblings with the same BECConnector parent
self._enforce_unique_sibling_name()
# 2) Register the object for RPC
# register widget to rpc register
self.rpc_register = RPCRegister()
self.rpc_register.add_rpc(self)
def _enforce_unique_sibling_name(self):
"""
Enforce that this BECConnector has a unique objectName among its siblings.
Sibling logic:
- If there's a nearest BECConnector parent, only compare with children of that parent.
- If parent is None (i.e., top-level object), compare with all other top-level BECConnectors.
"""
QApplication.processEvents()
parent_bec = WidgetHierarchy._get_becwidget_ancestor(self)
if parent_bec:
# We have a parent => only compare with siblings under that parent
siblings = parent_bec.findChildren(BECConnector)
else:
# No parent => treat all top-level BECConnectors as siblings
# 1) Gather all BECConnectors from QApplication
all_widgets = QApplication.allWidgets()
all_bec = [w for w in all_widgets if isinstance(w, BECConnector)]
# 2) "Top-level" means closest BECConnector parent is None
top_level_bec = [
w for w in all_bec if WidgetHierarchy._get_becwidget_ancestor(w) is None
]
# 3) We are among these top-level siblings
siblings = top_level_bec
# Collect used names among siblings
used_names = {sib.objectName() for sib in siblings if sib is not self}
base_name = self.object_name
if base_name not in used_names:
# Name is already unique among siblings
return
# Need a suffix to avoid collision
counter = 0
while True:
trial_name = f"{base_name}_{counter}"
if trial_name not in used_names:
self.setObjectName(trial_name)
self.object_name = trial_name
break
counter += 1
# pylint: disable=invalid-name
def setObjectName(self, name: str) -> None:
"""
Set the object name of the widget.
Args:
name (str): The new object name.
"""
super().setObjectName(name)
self.object_name = name
if self.rpc_register.object_is_registered(self):
self.rpc_register.broadcast()
def submit_task(self, fn, *args, on_complete: SafeSlot = None, **kwargs) -> Worker:
"""
Submit a task to run in a separate thread. The task will run the specified
function with the provided arguments and emit the completed signal when done.
Use this method if you want to wait for a task to complete without blocking the
main thread.
Args:
fn: Function to run in a separate thread.
*args: Arguments for the function.
on_complete: Slot to run when the task is complete.
**kwargs: Keyword arguments for the function.
Returns:
worker: The worker object that will run the task.
Examples:
>>> def my_function(a, b):
>>> print(a + b)
>>> self.submit_task(my_function, 1, 2)
>>> def my_function(a, b):
>>> print(a + b)
>>> def on_complete():
>>> print("Task complete")
>>> self.submit_task(my_function, 1, 2, on_complete=on_complete)
"""
worker = Worker(fn, *args, **kwargs)
if on_complete:
worker.signals.completed.connect(on_complete)
# Keep a reference to the worker so it is not garbage collected.
self._workers.append(worker)
# When the worker is done, remove it from our list.
worker.signals.completed.connect(lambda: self._workers.remove(worker))
self._thread_pool.start(worker)
return worker
def _get_all_rpc(self) -> dict:
def get_all_rpc(self) -> dict:
"""Get all registered RPC objects."""
all_connections = self.rpc_register.list_all_connections()
return dict(all_connections)
@property
def _rpc_id(self) -> str:
def rpc_id(self) -> str:
"""Get the RPC ID of the widget."""
return self.gui_id
@_rpc_id.setter
def _rpc_id(self, rpc_id: str) -> None:
@rpc_id.setter
def rpc_id(self, rpc_id: str) -> None:
"""Set the RPC ID of the widget."""
self.gui_id = rpc_id
@property
def _config_dict(self) -> dict:
def config_dict(self) -> dict:
"""
Get the configuration of the widget.
@@ -345,78 +86,23 @@ class BECConnector:
"""
return self.config.model_dump()
@_config_dict.setter
def _config_dict(self, config: BaseModel) -> None:
@config_dict.setter
def config_dict(self, config: BaseModel) -> None:
"""
Set the configuration of the widget.
Get the configuration of the widget.
Args:
config (BaseModel): The new configuration model.
Returns:
dict: The configuration of the widget.
"""
self.config = config
# FIXME some thoughts are required to decide how thhis should work with rpc registry
def apply_config(self, config: dict, generate_new_id: bool = True) -> None:
"""
Apply the configuration to the widget.
Args:
config (dict): Configuration settings.
generate_new_id (bool): If True, generate a new GUI ID for the widget.
"""
self.config = ConnectionConfig(**config)
if generate_new_id is True:
gui_id = str(uuid.uuid4())
self.rpc_register.remove_rpc(self)
self._set_gui_id(gui_id)
self.rpc_register.add_rpc(self)
else:
self.gui_id = self.config.gui_id
# FIXME some thoughts are required to decide how thhis should work with rpc registry
def load_config(self, path: str | None = None, gui: bool = False):
"""
Load the configuration of the widget from YAML.
Args:
path (str | None): Path to the configuration file for non-GUI dialog mode.
gui (bool): If True, use the GUI dialog to load the configuration file.
"""
if gui is True:
config = load_yaml_gui(self)
else:
config = load_yaml(path)
if config is not None:
if config.get("widget_class") != self.__class__.__name__:
raise ValueError(
f"Configuration file is not for {self.__class__.__name__}. Got configuration for {config.get('widget_class')}."
)
self.apply_config(config)
def save_config(self, path: str | None = None, gui: bool = False):
"""
Save the configuration of the widget to YAML.
Args:
path (str | None): Path to save the configuration file for non-GUI dialog mode.
gui (bool): If True, use the GUI dialog to save the configuration file.
"""
if gui is True:
save_yaml_gui(self, self._config_dict)
else:
if path is None:
path = os.getcwd()
file_path = os.path.join(path, f"{self.__class__.__name__}_config.yaml")
save_yaml(file_path, self._config_dict)
# @SafeSlot(str)
def _set_gui_id(self, gui_id: str) -> None:
@pyqtSlot(str)
def set_gui_id(self, gui_id: str) -> None:
"""
Set the GUI ID for the widget.
Args:
gui_id (str): GUI ID.
gui_id(str): GUI ID
"""
self.config.gui_id = gui_id
self.gui_id = gui_id
@@ -437,84 +123,48 @@ class BECConnector:
"""Update the client and device manager from BEC and create object for BEC shortcuts.
Args:
client: BEC client.
client: BEC client
"""
self.client = client
self.get_bec_shortcuts()
@SafeSlot(ConnectionConfig) # TODO can be also dict
@pyqtSlot(ConnectionConfig) # TODO can be also dict
def on_config_update(self, config: ConnectionConfig | dict) -> None:
"""
Update the configuration for the widget.
Args:
config (ConnectionConfig | dict): Configuration settings.
config(ConnectionConfig): Configuration settings.
"""
gui_id = getattr(config, "gui_id", None)
if isinstance(config, dict):
config = ConnectionConfig(**config)
self.config = config
if gui_id and config.gui_id != gui_id: # Recreating config should not overwrite the gui_id
self.config.gui_id = gui_id
# TODO add error handler
def remove(self):
"""Cleanup the BECConnector"""
# If the widget is attached to a dock, remove it from the dock.
# TODO this should be handled by dock and dock are not by BECConnector -> issue created #473
if self._parent_dock is not None:
self._parent_dock.delete(self.object_name)
# If the widget is from Qt, trigger its close method.
elif hasattr(self, "close"):
self.close()
# If the widget is neither from a Dock nor from Qt, remove it from the RPC registry.
# i.e. Curve Item from Waveform
else:
self.rpc_register.remove_rpc(self)
self.config = config
def get_config(self, dict_output: bool = True) -> dict | BaseModel:
"""
Get the configuration of the widget.
Args:
dict_output (bool): If True, return the configuration as a dictionary.
If False, return the configuration as a pydantic model.
dict_output(bool): If True, return the configuration as a dictionary. If False, return the configuration as a pydantic model.
Returns:
dict | BaseModel: The configuration of the widget.
dict: The configuration of the plot widget.
"""
if dict_output:
return self.config.model_dump()
else:
return self.config
def cleanup(self):
"""Cleanup the widget."""
self.rpc_register.remove_rpc(self)
all_connections = self.rpc_register.list_all_connections()
if len(all_connections) == 0:
print("No more connections. Shutting down GUI BEC client.")
self.client.shutdown()
# --- Example usage of BECConnector: running a simple task ---
if __name__ == "__main__": # pragma: no cover
import sys
# Create a QApplication instance (required for QThreadPool)
app = QApplication(sys.argv)
connector = BECConnector()
def print_numbers():
"""
Task function that prints numbers 1 to 10 with a 0.5 second delay between each.
"""
for i in range(1, 11):
print(i)
time.sleep(0.5)
def task_complete():
"""
Called when the task is complete.
"""
print("Task complete")
# Exit the application after the task completes.
app.quit()
# Submit the task using the connector's submit_task method.
connector.submit_task(print_numbers, on_complete=task_complete)
# Start the Qt event loop.
sys.exit(app.exec_())
# def closeEvent(self, event):
# self.cleanup()
# super().closeEvent(event)

View File

@@ -1,171 +0,0 @@
import importlib.metadata
import json
import os
import site
import sys
import sysconfig
from pathlib import Path
from bec_qthemes import material_icon
from qtpy import PYSIDE6
from qtpy.QtGui import QIcon
from bec_widgets.utils.bec_plugin_helper import user_widget_plugin
if PYSIDE6:
from PySide6.scripts.pyside_tool import (
_extend_path_var,
init_virtual_env,
is_pyenv_python,
is_virtual_env,
qt_tool_wrapper,
ui_tool_binary,
)
import bec_widgets
def designer_material_icon(icon_name: str) -> QIcon:
"""
Create a QIcon for the BECDesigner with the given material icon name.
Args:
icon_name (str): The name of the material icon.
Returns:
QIcon: The QIcon for the material icon.
"""
return QIcon(material_icon(icon_name, filled=True, convert_to_pixmap=True))
def list_editable_packages() -> set[str]:
"""
List all editable packages in the environment.
Returns:
set: A set of paths to editable packages.
"""
editable_packages = set()
# Get site-packages directories
site_packages = site.getsitepackages()
if hasattr(site, "getusersitepackages"):
site_packages.append(site.getusersitepackages())
for dist in importlib.metadata.distributions():
location = dist.locate_file("").resolve()
is_editable = all(not str(location).startswith(site_pkg) for site_pkg in site_packages)
if is_editable:
editable_packages.add(str(location))
for packages in site_packages:
# all dist-info directories in site-packages that contain a direct_url.json file
dist_info_dirs = Path(packages).rglob("*.dist-info")
for dist_info_dir in dist_info_dirs:
direct_url = dist_info_dir / "direct_url.json"
if not direct_url.exists():
continue
# load the json file and get the path to the package
with open(direct_url, "r", encoding="utf-8") as f:
data = json.load(f)
path = data.get("url", "")
if path.startswith("file://"):
path = path[7:]
editable_packages.add(path)
return editable_packages
def patch_designer(cmd_args: list[str] = []): # pragma: no cover
if not PYSIDE6:
print("PYSIDE6 is not available in the environment. Cannot patch designer.")
return
init_virtual_env()
major_version = sys.version_info[0]
minor_version = sys.version_info[1]
os.environ["PY_MAJOR_VERSION"] = str(major_version)
os.environ["PY_MINOR_VERSION"] = str(minor_version)
if sys.platform == "win32":
if is_virtual_env():
_extend_path_var("PATH", os.fspath(Path(sys._base_executable).parent), True)
else:
if sys.platform == "linux":
env_var = "LD_PRELOAD"
current_pid = os.getpid()
with open(f"/proc/{current_pid}/maps", "rt") as f:
for line in f:
if "libpython" in line:
lib_path = line.split()[-1]
os.environ[env_var] = lib_path
break
elif sys.platform == "darwin":
suffix = ".dylib"
env_var = "DYLD_INSERT_LIBRARIES"
version = f"{major_version}.{minor_version}"
library_name = f"libpython{version}{suffix}"
lib_path = str(Path(sysconfig.get_config_var("LIBDIR")) / library_name)
os.environ[env_var] = lib_path
else:
raise RuntimeError(f"Unsupported platform: {sys.platform}")
if is_pyenv_python() or is_virtual_env():
# append all editable packages to the PYTHONPATH
editable_packages = list_editable_packages()
for pckg in editable_packages:
_extend_path_var("PYTHONPATH", pckg, True)
qt_tool_wrapper(ui_tool_binary("designer"), cmd_args)
def find_plugin_paths(base_path: Path):
"""
Recursively find all directories containing a .pyproject file.
"""
plugin_paths = []
for path in base_path.rglob("*.pyproject"):
plugin_paths.append(str(path.parent))
return plugin_paths
def set_plugin_environment_variable(plugin_paths):
"""
Set the PYSIDE_DESIGNER_PLUGINS environment variable with the given plugin paths.
"""
current_paths = os.environ.get("PYSIDE_DESIGNER_PLUGINS", "")
if current_paths:
current_paths = current_paths.split(os.pathsep)
else:
current_paths = []
current_paths.extend(plugin_paths)
os.environ["PYSIDE_DESIGNER_PLUGINS"] = os.pathsep.join(current_paths)
# Patch the designer function
def open_designer(cmd_args: list[str] = []): # pragma: no cover
if not PYSIDE6:
print("PYSIDE6 is not available in the environment. Exiting...")
return
base_dir = Path(os.path.dirname(bec_widgets.__file__)).resolve()
plugin_paths = find_plugin_paths(base_dir)
if (plugin_repo := user_widget_plugin()) and isinstance(plugin_repo.__file__, str):
plugin_repo_dir = Path(os.path.dirname(plugin_repo.__file__)).resolve()
plugin_paths.extend(find_plugin_paths(plugin_repo_dir))
set_plugin_environment_variable(plugin_paths)
patch_designer(cmd_args)
def main():
open_designer(sys.argv[1:])
if __name__ == "__main__": # pragma: no cover
main()

View File

@@ -1,66 +1,37 @@
from __future__ import annotations
import argparse
import collections
import random
import string
from collections.abc import Callable
from typing import TYPE_CHECKING, DefaultDict, Hashable, Union
from typing import TYPE_CHECKING, Union
import louie
import redis
from bec_lib.client import BECClient
from bec_lib.logger import bec_logger
from bec_lib.redis_connector import MessageObject, RedisConnector
from bec_lib.service_config import ServiceConfig
from qtpy.QtCore import QObject
from qtpy.QtCore import Signal as pyqtSignal
from bec_widgets.utils.serialization import register_serializer_extension
logger = bec_logger.logger
if TYPE_CHECKING: # pragma: no cover
if TYPE_CHECKING:
from bec_lib.endpoints import EndpointInfo
from bec_widgets.utils.rpc_server import RPCServer
class QtThreadSafeCallback(QObject):
"""QtThreadSafeCallback is a wrapper around a callback function to make it thread-safe for Qt."""
cb_signal = pyqtSignal(dict, dict)
def __init__(self, cb: Callable, cb_info: dict | None = None):
"""
Initialize the QtThreadSafeCallback.
Args:
cb (Callable): The callback function to be wrapped.
cb_info (dict, optional): Additional information about the callback. Defaults to None.
"""
def __init__(self, cb):
super().__init__()
self.cb_info = cb_info
self.cb = cb
self.cb_ref = louie.saferef.safe_ref(cb)
self.cb_signal.connect(self.cb)
self.topics = set()
def __hash__(self):
# make 2 differents QtThreadSafeCallback to look
# identical when used as dictionary keys, if the
# callback is the same
return f"{id(self.cb_ref)}{self.cb_info}".__hash__()
def __eq__(self, other):
if not isinstance(other, QtThreadSafeCallback):
return False
return self.cb_ref == other.cb_ref and self.cb_info == other.cb_info
return id(self.cb)
def __call__(self, msg_content, metadata):
if self.cb_ref() is None:
# callback has been deleted
return
self.cb_signal.emit(msg_content, metadata)
@@ -100,184 +71,85 @@ class BECDispatcher:
_instance = None
_initialized = False
client: BECClient
cli_server: RPCServer | None = None
def __new__(
cls,
client=None,
config: str | ServiceConfig | None = None,
gui_id: str | None = None,
*args,
**kwargs,
):
def __new__(cls, client=None, config: str = None, *args, **kwargs):
if cls._instance is None:
cls._instance = super(BECDispatcher, cls).__new__(cls)
cls._initialized = False
return cls._instance
def __init__(self, client=None, config: str | ServiceConfig | None = None, gui_id: str = None):
def __init__(self, client=None, config: str = None):
if self._initialized:
return
self._registered_slots: DefaultDict[Hashable, QtThreadSafeCallback] = (
collections.defaultdict()
)
self._slots = collections.defaultdict(set)
self.client = client
if self.client is None:
if config is not None:
if not isinstance(config, ServiceConfig):
# config is supposed to be a path
config = ServiceConfig(config)
self.client = BECClient(
config=config, connector_cls=QtRedisConnector, name="BECWidgets"
)
host, port = config.split(":")
redis_config = {"host": host, "port": port}
self.client = BECClient(
config=ServiceConfig(redis=redis_config), connector_cls=QtRedisConnector
) # , forced=True)
else:
self.client = BECClient(connector_cls=QtRedisConnector) # , forced=True)
else:
if self.client.started:
# have to reinitialize client to use proper connector
logger.info("Shutting down BECClient to switch to QtRedisConnector")
self.client.shutdown()
self.client._BECClient__init_params["connector_cls"] = QtRedisConnector
try:
self.client.start()
except redis.exceptions.ConnectionError:
logger.warning("Could not connect to Redis, skipping start of BECClient.")
print("Could not connect to Redis, skipping start of BECClient.")
register_serializer_extension()
logger.success("Initialized BECDispatcher")
self.start_cli_server(gui_id=gui_id)
self._initialized = True
@classmethod
def reset_singleton(cls):
"""
Reset the singleton instance of the BECDispatcher.
"""
cls._instance = None
cls._initialized = False
def connect_slot(
self,
slot: Callable,
topics: EndpointInfo | str | list[EndpointInfo] | list[str],
cb_info: dict | None = None,
**kwargs,
self, slot: Callable, topics: Union[EndpointInfo, str, list[Union[EndpointInfo, str]]]
) -> None:
"""Connect widget's qt slot, so that it is called on new pub/sub topic message.
"""Connect widget's pyqt slot, so that it is called on new pub/sub topic message.
Args:
slot (Callable): A slot method/function that accepts two inputs: content and metadata of
the corresponding pub/sub message
topics EndpointInfo | str | list[EndpointInfo] | list[str]: A topic or list of topics that can typically be acquired via bec_lib.MessageEndpoints
cb_info (dict | None): A dictionary containing information about the callback. Defaults to None.
topics (EndpointInfo | str | list): A topic or list of topics that can typically be acquired via bec_lib.MessageEndpoints
"""
qt_slot = QtThreadSafeCallback(cb=slot, cb_info=cb_info)
if qt_slot not in self._registered_slots:
self._registered_slots[qt_slot] = qt_slot
qt_slot = self._registered_slots[qt_slot]
self.client.connector.register(topics, cb=qt_slot, **kwargs)
slot = QtThreadSafeCallback(slot)
self.client.connector.register(topics, cb=slot)
topics_str, _ = self.client.connector._convert_endpointinfo(topics)
qt_slot.topics.update(set(topics_str))
self._slots[slot].update(set(topics_str))
def disconnect_slot(
self, slot: Callable, topics: EndpointInfo | str | list[EndpointInfo] | list[str]
):
"""
Disconnect a slot from a topic.
Args:
slot(Callable): The slot to disconnect
topics EndpointInfo | str | list[EndpointInfo] | list[str]: A topic or list of topics to unsub from.
"""
def disconnect_slot(self, slot: Callable, topics: Union[str, list]):
# find the right slot to disconnect from ;
# slot callbacks are wrapped in QtThreadSafeCallback objects,
# but the slot we receive here is the original callable
for connected_slot in self._registered_slots.values():
for connected_slot in self._slots:
if connected_slot.cb == slot:
break
else:
return
self.client.connector.unregister(topics, cb=connected_slot)
topics_str, _ = self.client.connector._convert_endpointinfo(topics)
self._registered_slots[connected_slot].topics.difference_update(set(topics_str))
if not self._registered_slots[connected_slot].topics:
del self._registered_slots[connected_slot]
self._slots[slot].difference_update(set(topics_str))
if not self._slots[slot]:
del self._slots[slot]
def disconnect_topics(self, topics: Union[str, list]):
"""
Disconnect all slots from a topic.
Args:
topics(Union[str, list]): The topic(s) to disconnect from
"""
self.client.connector.unregister(topics)
topics_str, _ = self.client.connector._convert_endpointinfo(topics)
remove_slots = []
for connected_slot in self._registered_slots.values():
connected_slot.topics.difference_update(set(topics_str))
if not connected_slot.topics:
remove_slots.append(connected_slot)
for connected_slot in remove_slots:
self._registered_slots.pop(connected_slot, None)
for slot in list(self._slots.keys()):
slot_topics = self._slots[slot]
slot_topics.difference_update(set(topics_str))
if not slot_topics:
del self._slots[slot]
def disconnect_all(self, *args, **kwargs):
"""
Disconnect all slots from all topics.
Args:
*args: Arbitrary positional arguments
**kwargs: Arbitrary keyword arguments
"""
# pylint: disable=protected-access
self.disconnect_topics(self.client.connector._topics_cb)
def start_cli_server(self, gui_id: str | None = None):
"""
Start the CLI server.
Args:
gui_id(str, optional): The GUI ID. Defaults to None. If None, a unique identifier will be generated.
"""
# pylint: disable=import-outside-toplevel
from bec_widgets.utils.rpc_server import RPCServer
if gui_id is None:
gui_id = self.generate_unique_identifier()
if not self.client.started:
logger.error("Cannot start CLI server without a running client")
return
self.cli_server = RPCServer(gui_id, dispatcher=self, client=self.client)
logger.success(f"Started CLI server with gui_id: {gui_id}")
def stop_cli_server(self):
"""
Stop the CLI server.
"""
if self.cli_server is None:
logger.error("Cannot stop CLI server without starting it first")
return
self.cli_server.shutdown()
self.cli_server = None
logger.success("Stopped CLI server")
@staticmethod
def generate_unique_identifier(length: int = 4) -> str:
"""
Generate a unique identifier for the application.
Args:
length: The length of the identifier. Defaults to 4.
Returns:
str: The unique identifier.
"""
allowed_chars = string.ascii_lowercase + string.digits
return "".join(random.choices(allowed_chars, k=length))

View File

@@ -1,102 +0,0 @@
from __future__ import annotations
import importlib.metadata
import inspect
import pkgutil
import traceback
from importlib import util as importlib_util
from importlib.machinery import FileFinder, ModuleSpec, SourceFileLoader
from types import ModuleType
from typing import Generator
from bec_lib.logger import bec_logger
from bec_widgets.utils.plugin_utils import BECClassContainer, BECClassInfo
logger = bec_logger.logger
def _submodule_specs(module: ModuleType) -> tuple[ModuleSpec | None, ...]:
"""Return specs for all submodules of the given module."""
return tuple(
module_info.module_finder.find_spec(module_info.name)
for module_info in pkgutil.iter_modules(module.__path__)
if isinstance(module_info.module_finder, FileFinder)
)
def _loaded_submodules_from_specs(
submodule_specs: tuple[ModuleSpec | None, ...],
) -> Generator[ModuleType, None, None]:
"""Load all submodules from the given specs."""
for submodule in (
importlib_util.module_from_spec(spec) for spec in submodule_specs if spec is not None
):
assert isinstance(
submodule.__loader__, SourceFileLoader
), "Module found from FileFinder should have SourceFileLoader!"
try:
submodule.__loader__.exec_module(submodule)
except Exception as e:
logger.error(
f"Error loading plugin {submodule}: \n{''.join(traceback.format_exception(e))}"
)
yield submodule
def _submodule_by_name(module: ModuleType, name: str):
for submod in _loaded_submodules_from_specs(_submodule_specs(module)):
if submod.__name__ == name:
return submod
return None
def _get_widgets_from_module(module: ModuleType) -> BECClassContainer:
"""Find any BECWidget subclasses in the given module and return them with their info."""
from bec_widgets.utils.bec_widget import BECWidget # avoid circular import
classes = inspect.getmembers(
module,
predicate=lambda item: inspect.isclass(item)
and issubclass(item, BECWidget)
and item is not BECWidget,
)
return BECClassContainer(
BECClassInfo(name=k, module=module.__name__, file=module.__loader__.get_filename(), obj=v)
for k, v in classes
)
def _all_widgets_from_all_submods(module) -> BECClassContainer:
"""Recursively load submodules, find any BECWidgets, and return them all as a flat dict."""
widgets = _get_widgets_from_module(module)
if not hasattr(module, "__path__"):
return widgets
for submod in _loaded_submodules_from_specs(_submodule_specs(module)):
widgets += _all_widgets_from_all_submods(submod)
return widgets
def user_widget_plugin() -> ModuleType | None:
plugins = importlib.metadata.entry_points(group="bec.widgets.user_widgets") # type: ignore
return None if len(plugins) == 0 else tuple(plugins)[0].load()
def get_plugin_client_module() -> ModuleType | None:
"""If there is a plugin repository installed, return the client module."""
return _submodule_by_name(plugin, "client") if (plugin := user_widget_plugin()) else None
def get_all_plugin_widgets() -> BECClassContainer:
"""If there is a plugin repository installed, load all widgets from it."""
if plugin := user_widget_plugin():
return _all_widgets_from_all_submods(plugin)
else:
return BECClassContainer()
if __name__ == "__main__": # pragma: no cover
client = get_plugin_client_module()
print(get_all_plugin_widgets())
...

View File

@@ -1,90 +0,0 @@
"""This custom class is a thin wrapper around the SignalProxy class to allow signal calls to be blocked.
Unblocking the proxy needs to be done through the slot unblock_proxy. The most likely use case for this class is
when the callback function is potentially initiating a slower progress, i.e. requesting a data analysis routine to
analyse data. Requesting a new fit may lead to request piling up and an overall slow done of performance. This proxy
will allow you to decide by yourself when to unblock and execute the callback again."""
from pyqtgraph import SignalProxy
from qtpy.QtCore import QTimer, Signal
from bec_widgets.utils.error_popups import SafeSlot
class BECSignalProxy(SignalProxy):
"""
Thin wrapper around the SignalProxy class to allow signal calls to be blocked,
but arguments still being stored.
Args:
*args: Arguments to pass to the SignalProxy class.
rateLimit (int): The rateLimit of the proxy.
timeout (float): The number of seconds after which the proxy automatically
unblocks if still blocked. Default is 10.0 seconds.
**kwargs: Keyword arguments to pass to the SignalProxy class.
Example:
>>> proxy = BECSignalProxy(signal, rate_limit=25, slot=callback)
"""
is_blocked = Signal(bool)
def __init__(self, *args, rateLimit=25, timeout=10.0, **kwargs):
super().__init__(*args, rateLimit=rateLimit, **kwargs)
self._blocking = False
self.old_args = None
self.new_args = None
# Store timeout value (in seconds)
self._timeout = timeout
# Create a single-shot timer for auto-unblocking
self._timer = QTimer()
self._timer.setSingleShot(True)
self._timer.timeout.connect(self._timeout_unblock)
@property
def blocked(self):
"""Returns if the proxy is blocked"""
return self._blocking
@blocked.setter
def blocked(self, value: bool):
self._blocking = value
self.is_blocked.emit(value)
def signalReceived(self, *args):
"""Receive signal, store the args and call signalReceived from the parent class if not blocked"""
self.new_args = args
if self.blocked is True:
return
self.blocked = True
self.old_args = args
super().signalReceived(*args)
self._timer.start(int(self._timeout * 1000))
@SafeSlot()
def unblock_proxy(self):
"""Unblock the proxy, and call the signalReceived method in case there was an update of the args."""
if self.blocked:
self._timer.stop()
self.blocked = False
if self.new_args != self.old_args:
self.signalReceived(*self.new_args)
@SafeSlot()
def _timeout_unblock(self):
"""
Internal method called by the QTimer upon timeout. Unblocks the proxy
automatically if it is still blocked.
"""
if self.blocked:
self.unblock_proxy()
def cleanup(self):
"""
Cleanup the proxy by stopping the timer and disconnecting the timeout signal.
"""
self._timer.stop()
self._timer.timeout.disconnect(self._timeout_unblock)
self._timer.deleteLater()

View File

@@ -1,113 +0,0 @@
from __future__ import annotations
from typing import TYPE_CHECKING
import darkdetect
from bec_lib.logger import bec_logger
from qtpy.QtCore import QObject, Slot
from qtpy.QtWidgets import QApplication
from bec_widgets.cli.rpc.rpc_register import RPCRegister
from bec_widgets.utils.bec_connector import BECConnector, ConnectionConfig
from bec_widgets.utils.colors import set_theme
if TYPE_CHECKING: # pragma: no cover
from bec_widgets.widgets.containers.dock import BECDock
logger = bec_logger.logger
class BECWidget(BECConnector):
"""Mixin class for all BEC widgets, to handle cleanup"""
# The icon name is the name of the icon in the icon theme, typically a name taken
# from fonts.google.com/icons. Override this in subclasses to set the icon name.
ICON_NAME = "widgets"
USER_ACCESS = ["remove"]
# pylint: disable=too-many-arguments
def __init__(
self,
client=None,
config: ConnectionConfig = None,
gui_id: str | None = None,
theme_update: bool = False,
parent_dock: BECDock | None = None, # TODO should go away -> issue created #473
**kwargs,
):
"""
Base class for all BEC widgets. This class should be used as a mixin class for all BEC widgets, e.g.:
>>> class MyWidget(BECWidget, QWidget):
>>> def __init__(self, parent=None, client=None, config=None, gui_id=None):
>>> super().__init__(client=client, config=config, gui_id=gui_id)
>>> QWidget.__init__(self, parent=parent)
Args:
client(BECClient, optional): The BEC client.
config(ConnectionConfig, optional): The connection configuration.
gui_id(str, optional): The GUI ID.
theme_update(bool, optional): Whether to subscribe to theme updates. Defaults to False. When set to True, the
widget's apply_theme method will be called when the theme changes.
"""
super().__init__(
client=client, config=config, gui_id=gui_id, parent_dock=parent_dock, **kwargs
)
if not isinstance(self, QObject):
raise RuntimeError(f"{repr(self)} is not a subclass of QWidget")
app = QApplication.instance()
if not hasattr(app, "theme"):
# DO NOT SET THE THEME TO AUTO! Otherwise, the qwebengineview will segfault
# Instead, we will set the theme to the system setting on startup
if darkdetect.isDark():
set_theme("dark")
else:
set_theme("light")
if theme_update:
logger.debug(f"Subscribing to theme updates for {self.__class__.__name__}")
self._connect_to_theme_change()
def _connect_to_theme_change(self):
"""Connect to the theme change signal."""
qapp = QApplication.instance()
if hasattr(qapp, "theme_signal"):
qapp.theme_signal.theme_updated.connect(self._update_theme)
def _update_theme(self, theme: str | None = None):
"""Update the theme."""
if theme is None:
qapp = QApplication.instance()
if hasattr(qapp, "theme"):
theme = qapp.theme.theme
else:
theme = "dark"
self.apply_theme(theme)
@Slot(str)
def apply_theme(self, theme: str):
"""
Apply the theme to the widget.
Args:
theme(str, optional): The theme to be applied.
"""
def cleanup(self):
"""Cleanup the widget."""
with RPCRegister.delayed_broadcast():
# All widgets need to call super().cleanup() in their cleanup method
logger.info(f"Registry cleanup for widget {self.__class__.__name__}")
self.rpc_register.remove_rpc(self)
def closeEvent(self, event):
"""Wrap the close even to ensure the rpc_register is cleaned up."""
try:
if not self._destroyed:
self.cleanup()
self._destroyed = True
finally:
super().closeEvent(event) # pylint: disable=no-member

View File

@@ -1,13 +0,0 @@
from __future__ import annotations
from qtpy.QtCore import Signal
from qtpy.QtGui import QMouseEvent
from qtpy.QtWidgets import QLabel
class ClickableLabel(QLabel):
clicked = Signal()
def mouseReleaseEvent(self, ev: QMouseEvent) -> None:
self.clicked.emit()
return super().mouseReleaseEvent(ev)

View File

@@ -1,380 +0,0 @@
from __future__ import annotations
import sys
from typing import Literal
import pyqtgraph as pg
from qtpy.QtCore import Property, QEasingCurve, QObject, QPropertyAnimation
from qtpy.QtWidgets import (
QApplication,
QHBoxLayout,
QMainWindow,
QPushButton,
QSizePolicy,
QVBoxLayout,
QWidget,
)
from typeguard import typechecked
from bec_widgets.widgets.containers.layout_manager.layout_manager import LayoutManagerWidget
class DimensionAnimator(QObject):
"""
Helper class to animate the size of a panel widget.
"""
def __init__(self, panel_widget: QWidget, direction: str):
super().__init__()
self.panel_widget = panel_widget
self.direction = direction
self._size = 0
@Property(int)
def panel_width(self):
"""
Returns the current width of the panel widget.
"""
return self._size
@panel_width.setter
def panel_width(self, val: int):
"""
Set the width of the panel widget.
Args:
val(int): The width to set.
"""
self._size = val
self.panel_widget.setFixedWidth(val)
@Property(int)
def panel_height(self):
"""
Returns the current height of the panel widget.
"""
return self._size
@panel_height.setter
def panel_height(self, val: int):
"""
Set the height of the panel widget.
Args:
val(int): The height to set.
"""
self._size = val
self.panel_widget.setFixedHeight(val)
class CollapsiblePanelManager(QObject):
"""
Manager class to handle collapsible panels from a main widget using LayoutManagerWidget.
"""
def __init__(self, layout_manager: LayoutManagerWidget, reference_widget: QWidget, parent=None):
super().__init__(parent)
self.layout_manager = layout_manager
self.reference_widget = reference_widget
self.animations = {}
self.panels = {}
self.direction_settings = {
"left": {"property": b"maximumWidth", "default_size": 200},
"right": {"property": b"maximumWidth", "default_size": 200},
"top": {"property": b"maximumHeight", "default_size": 150},
"bottom": {"property": b"maximumHeight", "default_size": 150},
}
def add_panel(
self,
direction: Literal["left", "right", "top", "bottom"],
panel_widget: QWidget,
target_size: int | None = None,
duration: int = 300,
):
"""
Add a panel widget to the layout manager.
Args:
direction(Literal["left", "right", "top", "bottom"]): Direction of the panel.
panel_widget(QWidget): The panel widget to add.
target_size(int, optional): The target size of the panel. Defaults to None.
duration(int): The duration of the animation in milliseconds. Defaults to 300.
"""
if direction not in self.direction_settings:
raise ValueError("Direction must be one of 'left', 'right', 'top', 'bottom'.")
if target_size is None:
target_size = self.direction_settings[direction]["default_size"]
self.layout_manager.add_widget_relative(
widget=panel_widget, reference_widget=self.reference_widget, position=direction
)
panel_widget.setVisible(False)
# Set initial constraints as flexible
if direction in ["left", "right"]:
panel_widget.setMaximumWidth(0)
panel_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
else:
panel_widget.setMaximumHeight(0)
panel_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.panels[direction] = {
"widget": panel_widget,
"direction": direction,
"target_size": target_size,
"duration": duration,
"animator": None,
}
def toggle_panel(
self,
direction: Literal["left", "right", "top", "bottom"],
target_size: int | None = None,
duration: int | None = None,
easing_curve: QEasingCurve = QEasingCurve.InOutQuad,
ensure_max: bool = False,
scale: float | None = None,
animation: bool = True,
):
"""
Toggle the specified panel.
Parameters:
direction (Literal["left", "right", "top", "bottom"]): Direction of the panel to toggle.
target_size (int, optional): Override target size for this toggle.
duration (int, optional): Override the animation duration.
easing_curve (QEasingCurve): Animation easing curve.
ensure_max (bool): If True, animate as a fixed-size panel.
scale (float, optional): If provided, calculate target_size from main widget size.
animation (bool): If False, no animation is performed; panel instantly toggles.
"""
if direction not in self.panels:
raise ValueError(f"No panel found in direction '{direction}'.")
panel_info = self.panels[direction]
panel_widget = panel_info["widget"]
dir_settings = self.direction_settings[direction]
# Determine final target size
if scale is not None:
main_rect = self.reference_widget.geometry()
if direction in ["left", "right"]:
computed_target = int(main_rect.width() * scale)
else:
computed_target = int(main_rect.height() * scale)
final_target_size = computed_target
else:
if target_size is None:
final_target_size = panel_info["target_size"]
else:
final_target_size = target_size
if duration is None:
duration = panel_info["duration"]
expanding_property = dir_settings["property"]
currently_visible = panel_widget.isVisible()
if ensure_max:
if panel_info["animator"] is None:
panel_info["animator"] = DimensionAnimator(panel_widget, direction)
animator = panel_info["animator"]
if direction in ["left", "right"]:
prop_name = b"panel_width"
else:
prop_name = b"panel_height"
else:
animator = None
prop_name = expanding_property
if currently_visible:
# Hide the panel
if ensure_max:
start_value = final_target_size
end_value = 0
finish_callback = lambda w=panel_widget, d=direction: self._after_hide_reset(w, d)
else:
start_value = (
panel_widget.width()
if direction in ["left", "right"]
else panel_widget.height()
)
end_value = 0
finish_callback = lambda w=panel_widget: w.setVisible(False)
else:
# Show the panel
start_value = 0
end_value = final_target_size
finish_callback = None
if ensure_max:
# Fix panel exactly
if direction in ["left", "right"]:
panel_widget.setMinimumWidth(0)
panel_widget.setMaximumWidth(final_target_size)
panel_widget.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Expanding)
else:
panel_widget.setMinimumHeight(0)
panel_widget.setMaximumHeight(final_target_size)
panel_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
else:
# Flexible mode
if direction in ["left", "right"]:
panel_widget.setMinimumWidth(0)
panel_widget.setMaximumWidth(final_target_size)
panel_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
else:
panel_widget.setMinimumHeight(0)
panel_widget.setMaximumHeight(final_target_size)
panel_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
panel_widget.setVisible(True)
if not animation:
# No animation: instantly set final state
if end_value == 0:
# Hiding
if ensure_max:
# Reset after hide
self._after_hide_reset(panel_widget, direction)
else:
panel_widget.setVisible(False)
else:
# Showing
if ensure_max:
# Already set fixed size
if direction in ["left", "right"]:
panel_widget.setFixedWidth(end_value)
else:
panel_widget.setFixedHeight(end_value)
else:
# Just set maximum dimension
if direction in ["left", "right"]:
panel_widget.setMaximumWidth(end_value)
else:
panel_widget.setMaximumHeight(end_value)
return
# With animation
animation = QPropertyAnimation(animator if ensure_max else panel_widget, prop_name)
animation.setDuration(duration)
animation.setStartValue(start_value)
animation.setEndValue(end_value)
animation.setEasingCurve(easing_curve)
if end_value == 0 and finish_callback:
animation.finished.connect(finish_callback)
elif end_value == 0 and not finish_callback:
animation.finished.connect(lambda w=panel_widget: w.setVisible(False))
animation.start()
self.animations[panel_widget] = animation
@typechecked
def _after_hide_reset(
self, panel_widget: QWidget, direction: Literal["left", "right", "top", "bottom"]
):
"""
Reset the panel widget after hiding it in ensure_max mode.
Args:
panel_widget(QWidget): The panel widget to reset.
direction(Literal["left", "right", "top", "bottom"]): The direction of the panel.
"""
# Called after hiding a panel in ensure_max mode
panel_widget.setVisible(False)
if direction in ["left", "right"]:
panel_widget.setMinimumWidth(0)
panel_widget.setMaximumWidth(0)
panel_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
else:
panel_widget.setMinimumHeight(0)
panel_widget.setMaximumHeight(16777215)
panel_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
####################################################################################################
# The following code is for the GUI control panel to interact with the CollapsiblePanelManager.
# It is not covered by any tests as it serves only as an example for the CollapsiblePanelManager class.
####################################################################################################
class MainWindow(QMainWindow): # pragma: no cover
def __init__(self):
super().__init__()
self.setWindowTitle("Panels with ensure_max, scale, and animation toggle")
self.resize(800, 600)
central_widget = QWidget()
self.setCentralWidget(central_widget)
main_layout = QVBoxLayout(central_widget)
main_layout.setContentsMargins(10, 10, 10, 10)
main_layout.setSpacing(10)
# Buttons
buttons_layout = QHBoxLayout()
self.btn_left = QPushButton("Toggle Left (ensure_max=True)")
self.btn_top = QPushButton("Toggle Top (scale=0.5, no animation)")
self.btn_right = QPushButton("Toggle Right (ensure_max=True, scale=0.3)")
self.btn_bottom = QPushButton("Toggle Bottom (no animation)")
buttons_layout.addWidget(self.btn_left)
buttons_layout.addWidget(self.btn_top)
buttons_layout.addWidget(self.btn_right)
buttons_layout.addWidget(self.btn_bottom)
main_layout.addLayout(buttons_layout)
self.layout_manager = LayoutManagerWidget()
main_layout.addWidget(self.layout_manager)
# Main widget
self.main_plot = pg.PlotWidget()
self.main_plot.plot([1, 2, 3, 4], [4, 3, 2, 1])
self.layout_manager.add_widget(self.main_plot, 0, 0)
self.panel_manager = CollapsiblePanelManager(self.layout_manager, self.main_plot)
# Panels
self.left_panel = pg.PlotWidget()
self.left_panel.plot([1, 2, 3], [3, 2, 1])
self.panel_manager.add_panel("left", self.left_panel, target_size=200)
self.right_panel = pg.PlotWidget()
self.right_panel.plot([10, 20, 30], [1, 10, 1])
self.panel_manager.add_panel("right", self.right_panel, target_size=200)
self.top_panel = pg.PlotWidget()
self.top_panel.plot([1, 2, 3], [1, 2, 3])
self.panel_manager.add_panel("top", self.top_panel, target_size=150)
self.bottom_panel = pg.PlotWidget()
self.bottom_panel.plot([2, 4, 6], [10, 5, 10])
self.panel_manager.add_panel("bottom", self.bottom_panel, target_size=150)
# Connect buttons
# Left with ensure_max
self.btn_left.clicked.connect(
lambda: self.panel_manager.toggle_panel("left", ensure_max=True)
)
# Top with scale=0.5 and no animation
self.btn_top.clicked.connect(
lambda: self.panel_manager.toggle_panel("top", scale=0.5, animation=False)
)
# Right with ensure_max, scale=0.3
self.btn_right.clicked.connect(
lambda: self.panel_manager.toggle_panel("right", ensure_max=True, scale=0.3)
)
# Bottom no animation
self.btn_bottom.clicked.connect(
lambda: self.panel_manager.toggle_panel("bottom", target_size=100, animation=False)
)
if __name__ == "__main__": # pragma: no cover
app = QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec())

View File

@@ -1,144 +1,11 @@
from __future__ import annotations
from typing import Literal
import re
from typing import TYPE_CHECKING, Literal
import bec_qthemes
import numpy as np
import pyqtgraph as pg
from bec_qthemes._os_appearance.listener import OSThemeSwitchListener
from pydantic_core import PydanticCustomError
from qtpy.QtGui import QColor
from qtpy.QtWidgets import QApplication
if TYPE_CHECKING: # pragma: no cover
from bec_qthemes._main import AccentColors
def get_theme_name():
if QApplication.instance() is None or not hasattr(QApplication.instance(), "theme"):
return "dark"
else:
return QApplication.instance().theme.theme
def get_theme_palette():
return bec_qthemes.load_palette(get_theme_name())
def get_accent_colors() -> AccentColors | None:
"""
Get the accent colors for the current theme. These colors are extensions of the color palette
and are used to highlight specific elements in the UI.
"""
if QApplication.instance() is None or not hasattr(QApplication.instance(), "theme"):
return None
return QApplication.instance().theme.accent_colors
def _theme_update_callback():
"""
Internal callback function to update the theme based on the system theme.
"""
app = QApplication.instance()
# pylint: disable=protected-access
app.theme.theme = app.os_listener._theme.lower()
app.theme_signal.theme_updated.emit(app.theme.theme)
apply_theme(app.os_listener._theme.lower())
def set_theme(theme: Literal["dark", "light", "auto"]):
"""
Set the theme for the application.
Args:
theme (Literal["dark", "light", "auto"]): The theme to set. "auto" will automatically switch between dark and light themes based on the system theme.
"""
app = QApplication.instance()
bec_qthemes.setup_theme(theme, install_event_filter=False)
app.theme_signal.theme_updated.emit(theme)
apply_theme(theme)
if theme != "auto":
return
if not hasattr(app, "os_listener") or app.os_listener is None:
app.os_listener = OSThemeSwitchListener(_theme_update_callback)
app.installEventFilter(app.os_listener)
def apply_theme(theme: Literal["dark", "light"]):
"""
Apply the theme to all pyqtgraph widgets. Do not use this function directly. Use set_theme instead.
"""
app = QApplication.instance()
graphic_layouts = [
child
for top in app.topLevelWidgets()
for child in top.findChildren(pg.GraphicsLayoutWidget)
]
plot_items = [
item
for gl in graphic_layouts
for item in gl.ci.items.keys() # ci is internal pg.GraphicsLayout that hosts all items
if isinstance(item, pg.PlotItem)
]
histograms = [
item
for gl in graphic_layouts
for item in gl.ci.items.keys() # ci is internal pg.GraphicsLayout that hosts all items
if isinstance(item, pg.HistogramLUTItem)
]
# Update background color based on the theme
if theme == "light":
background_color = "#e9ecef" # Subtle contrast for light mode
foreground_color = "#141414"
label_color = "#000000"
axis_color = "#666666"
else:
background_color = "#141414" # Dark mode
foreground_color = "#e9ecef"
label_color = "#FFFFFF"
axis_color = "#CCCCCC"
# update GraphicsLayoutWidget
pg.setConfigOptions(foreground=foreground_color, background=background_color)
for pg_widget in graphic_layouts:
pg_widget.setBackground(background_color)
# update PlotItems
for plot_item in plot_items:
for axis in ["left", "right", "top", "bottom"]:
plot_item.getAxis(axis).setPen(pg.mkPen(color=axis_color))
plot_item.getAxis(axis).setTextPen(pg.mkPen(color=label_color))
# Change title color
plot_item.titleLabel.setText(plot_item.titleLabel.text, color=label_color)
# Change legend color
if hasattr(plot_item, "legend") and plot_item.legend is not None:
plot_item.legend.setLabelTextColor(label_color)
# if legend is in plot item and theme is changed, has to be like that because of pg opt logic
for sample, label in plot_item.legend.items:
label_text = label.text
label.setText(label_text, color=label_color)
# update HistogramLUTItem
for histogram in histograms:
histogram.axis.setPen(pg.mkPen(color=axis_color))
histogram.axis.setTextPen(pg.mkPen(color=label_color))
# now define stylesheet according to theme and apply it
style = bec_qthemes.load_stylesheet(theme)
app.setStyleSheet(style)
class Colors:
@staticmethod
def golden_ratio(num: int) -> list:
"""Calculate the golden ratio for a given number of angles.
@@ -158,98 +25,9 @@ class Colors:
angles.append(angle)
return angles
@staticmethod
def set_theme_offset(theme: Literal["light", "dark"] | None = None, offset=0.2) -> tuple:
"""
Set the theme offset to avoid colors too close to white or black with light or dark theme respectively for pyqtgraph plot background.
Args:
theme(str): The theme to be applied.
offset(float): Offset to avoid colors too close to white or black with light or dark theme respectively for pyqtgraph plot background.
Returns:
tuple: Tuple of min_pos and max_pos.
Raises:
ValueError: If theme_offset is not between 0 and 1.
"""
if offset < 0 or offset > 1:
raise ValueError("theme_offset must be between 0 and 1")
if theme is None:
app = QApplication.instance()
if hasattr(app, "theme"):
theme = app.theme.theme
if theme == "light":
min_pos = 0.0
max_pos = 1 - offset
else:
min_pos = 0.0 + offset
max_pos = 1.0
return min_pos, max_pos
@staticmethod
def evenly_spaced_colors(
colormap: str,
num: int,
format: Literal["QColor", "HEX", "RGB"] = "QColor",
theme_offset=0.2,
theme: Literal["light", "dark"] | None = None,
) -> list:
"""
Extract `num` colors from the specified colormap, evenly spaced along its range,
and return them in the specified format.
Args:
colormap (str): Name of the colormap.
num (int): Number of requested colors.
format (Literal["QColor","HEX","RGB"]): The format of the returned colors ('RGB', 'HEX', 'QColor').
theme_offset (float): Has to be between 0-1. Offset to avoid colors too close to white or black with light or dark theme respectively for pyqtgraph plot background.
theme (Literal['light', 'dark'] | None): The theme to be applied. Overrides the QApplication theme if specified.
Returns:
list: List of colors in the specified format.
Raises:
ValueError: If theme_offset is not between 0 and 1.
"""
if theme_offset < 0 or theme_offset > 1:
raise ValueError("theme_offset must be between 0 and 1")
cmap = pg.colormap.get(colormap)
min_pos, max_pos = Colors.set_theme_offset(theme, theme_offset)
# Generate positions that are evenly spaced within the acceptable range
if num == 1:
positions = np.array([(min_pos + max_pos) / 2])
else:
positions = np.linspace(min_pos, max_pos, num)
# Sample colors from the colormap at the calculated positions
colors = cmap.map(positions, mode="float")
color_list = []
for color in colors:
if format.upper() == "HEX":
color_list.append(QColor.fromRgbF(*color).name())
elif format.upper() == "RGB":
color_list.append(tuple((np.array(color) * 255).astype(int)))
elif format.upper() == "QCOLOR":
color_list.append(QColor.fromRgbF(*color))
else:
raise ValueError("Unsupported format. Please choose 'RGB', 'HEX', or 'QColor'.")
return color_list
@staticmethod
def golden_angle_color(
colormap: str,
num: int,
format: Literal["QColor", "HEX", "RGB"] = "QColor",
theme_offset=0.2,
theme: Literal["dark", "light"] | None = None,
colormap: str, num: int, format: Literal["QColor", "HEX", "RGB"] = "QColor"
) -> list:
"""
Extract num colors from the specified colormap following golden angle distribution and return them in the specified format.
@@ -258,293 +36,30 @@ class Colors:
colormap (str): Name of the colormap.
num (int): Number of requested colors.
format (Literal["QColor","HEX","RGB"]): The format of the returned colors ('RGB', 'HEX', 'QColor').
theme_offset (float): Has to be between 0-1. Offset to avoid colors too close to white or black with light or dark theme respectively for pyqtgraph plot background.
Returns:
list: List of colors in the specified format.
Raises:
ValueError: If theme_offset is not between 0 and 1.
ValueError: If the number of requested colors is greater than the number of colors in the colormap.
"""
cmap = pg.colormap.get(colormap)
phi = (1 + np.sqrt(5)) / 2 # Golden ratio
golden_angle_conjugate = 1 - (1 / phi) # Approximately 0.38196601125
min_pos, max_pos = Colors.set_theme_offset(theme, theme_offset)
# Generate positions within the acceptable range
positions = np.mod(np.arange(num) * golden_angle_conjugate, 1)
positions = min_pos + positions * (max_pos - min_pos)
# Sample colors from the colormap at the calculated positions
colors = cmap.map(positions, mode="float")
color_list = []
for color in colors:
cmap_colors = cmap.getColors(mode="float")
if num > len(cmap_colors):
raise ValueError(
f"Number of colors requested ({num}) is greater than the number of colors in the colormap ({len(cmap_colors)})"
)
angles = Colors.golden_ratio(len(cmap_colors))
color_selection = np.round(np.interp(angles, (-np.pi, np.pi), (0, len(cmap_colors))))
colors = []
for ii in color_selection[:num]:
color = cmap_colors[int(ii)]
if format.upper() == "HEX":
color_list.append(QColor.fromRgbF(*color).name())
colors.append(QColor.fromRgbF(*color).name())
elif format.upper() == "RGB":
color_list.append(tuple((np.array(color) * 255).astype(int)))
colors.append(tuple((np.array(color) * 255).astype(int)))
elif format.upper() == "QCOLOR":
color_list.append(QColor.fromRgbF(*color))
colors.append(QColor.fromRgbF(*color))
else:
raise ValueError("Unsupported format. Please choose 'RGB', 'HEX', or 'QColor'.")
return color_list
@staticmethod
def hex_to_rgba(hex_color: str, alpha=255) -> tuple:
"""
Convert HEX color to RGBA.
Args:
hex_color(str): HEX color string.
alpha(int): Alpha value (0-255). Default is 255 (opaque).
Returns:
tuple: RGBA color tuple (r, g, b, a).
"""
hex_color = hex_color.lstrip("#")
if len(hex_color) == 6:
r, g, b = tuple(int(hex_color[i : i + 2], 16) for i in (0, 2, 4))
elif len(hex_color) == 8:
r, g, b, a = tuple(int(hex_color[i : i + 2], 16) for i in (0, 2, 4, 6))
return (r, g, b, a)
else:
raise ValueError("HEX color must be 6 or 8 characters long.")
return (r, g, b, alpha)
@staticmethod
def rgba_to_hex(r: int, g: int, b: int, a: int = 255) -> str:
"""
Convert RGBA color to HEX.
Args:
r(int): Red value (0-255).
g(int): Green value (0-255).
b(int): Blue value (0-255).
a(int): Alpha value (0-255). Default is 255 (opaque).
Returns:
hec_color(str): HEX color string.
"""
return "#{:02X}{:02X}{:02X}{:02X}".format(r, g, b, a)
@staticmethod
def validate_color(color: tuple | str) -> tuple | str:
"""
Validate the color input if it is HEX or RGBA compatible. Can be used in any pydantic model as a field validator.
Args:
color(tuple|str): The color to be validated. Can be a tuple of RGBA values or a HEX string.
Returns:
tuple|str: The validated color.
"""
CSS_COLOR_NAMES = {
"aliceblue",
"antiquewhite",
"aqua",
"aquamarine",
"azure",
"beige",
"bisque",
"black",
"blanchedalmond",
"blue",
"blueviolet",
"brown",
"burlywood",
"cadetblue",
"chartreuse",
"chocolate",
"coral",
"cornflowerblue",
"cornsilk",
"crimson",
"cyan",
"darkblue",
"darkcyan",
"darkgoldenrod",
"darkgray",
"darkgreen",
"darkgrey",
"darkkhaki",
"darkmagenta",
"darkolivegreen",
"darkorange",
"darkorchid",
"darkred",
"darksalmon",
"darkseagreen",
"darkslateblue",
"darkslategray",
"darkslategrey",
"darkturquoise",
"darkviolet",
"deeppink",
"deepskyblue",
"dimgray",
"dimgrey",
"dodgerblue",
"firebrick",
"floralwhite",
"forestgreen",
"fuchsia",
"gainsboro",
"ghostwhite",
"gold",
"goldenrod",
"gray",
"green",
"greenyellow",
"grey",
"honeydew",
"hotpink",
"indianred",
"indigo",
"ivory",
"khaki",
"lavender",
"lavenderblush",
"lawngreen",
"lemonchiffon",
"lightblue",
"lightcoral",
"lightcyan",
"lightgoldenrodyellow",
"lightgray",
"lightgreen",
"lightgrey",
"lightpink",
"lightsalmon",
"lightseagreen",
"lightskyblue",
"lightslategray",
"lightslategrey",
"lightsteelblue",
"lightyellow",
"lime",
"limegreen",
"linen",
"magenta",
"maroon",
"mediumaquamarine",
"mediumblue",
"mediumorchid",
"mediumpurple",
"mediumseagreen",
"mediumslateblue",
"mediumspringgreen",
"mediumturquoise",
"mediumvioletred",
"midnightblue",
"mintcream",
"mistyrose",
"moccasin",
"navajowhite",
"navy",
"oldlace",
"olive",
"olivedrab",
"orange",
"orangered",
"orchid",
"palegoldenrod",
"palegreen",
"paleturquoise",
"palevioletred",
"papayawhip",
"peachpuff",
"peru",
"pink",
"plum",
"powderblue",
"purple",
"red",
"rosybrown",
"royalblue",
"saddlebrown",
"salmon",
"sandybrown",
"seagreen",
"seashell",
"sienna",
"silver",
"skyblue",
"slateblue",
"slategray",
"slategrey",
"snow",
"springgreen",
"steelblue",
"tan",
"teal",
"thistle",
"tomato",
"turquoise",
"violet",
"wheat",
"white",
"whitesmoke",
"yellow",
"yellowgreen",
}
if isinstance(color, str):
hex_pattern = re.compile(r"^#(?:[0-9a-fA-F]{3}){1,2}$")
if hex_pattern.match(color):
return color
elif color.lower() in CSS_COLOR_NAMES:
return color
else:
raise PydanticCustomError(
"unsupported color",
"The color must be a valid HEX string or CSS Color.",
{"wrong_value": color},
)
elif isinstance(color, tuple):
if len(color) != 4:
raise PydanticCustomError(
"unsupported color",
"The color must be a tuple of 4 elements (R, G, B, A).",
{"wrong_value": color},
)
for value in color:
if not 0 <= value <= 255:
raise PydanticCustomError(
"unsupported color",
f"The color values must be between 0 and 255 in RGBA format (R,G,B,A)",
{"wrong_value": color},
)
return color
@staticmethod
def validate_color_map(color_map: str, return_error: bool = True) -> str | bool:
"""
Validate the colormap input if it is supported by pyqtgraph. Can be used in any pydantic model as a field validator. If validation fails it prints all available colormaps from pyqtgraph instance.
Args:
color_map(str): The colormap to be validated.
Returns:
str: The validated colormap, if colormap is valid.
bool: False, if colormap is invalid.
Raises:
PydanticCustomError: If colormap is invalid.
"""
available_pg_maps = pg.colormap.listMaps()
available_mpl_maps = pg.colormap.listMaps("matplotlib")
available_mpl_colorcet = pg.colormap.listMaps("colorcet")
available_colormaps = available_pg_maps + available_mpl_maps + available_mpl_colorcet
if color_map not in available_colormaps:
if return_error:
raise PydanticCustomError(
"unsupported colormap",
f"Colormap '{color_map}' not found in the current installation of pyqtgraph. Choose on the following: {available_colormaps}.",
{"wrong_value": color_map},
)
else:
return False
return color_map
return colors

View File

@@ -1,270 +0,0 @@
import time
from types import SimpleNamespace
from bec_qthemes import material_icon
from qtpy.QtCore import Property, Qt, Signal
from qtpy.QtGui import QColor
from qtpy.QtWidgets import (
QDialog,
QHBoxLayout,
QLabel,
QPushButton,
QSizePolicy,
QSpacerItem,
QVBoxLayout,
QWidget,
)
from bec_widgets.utils.colors import get_accent_colors
class LedLabel(QLabel):
success_led = "color: white;border-radius: 10;background-color: qlineargradient(spread:pad, x1:0.145, y1:0.16, x2:1, y2:1, stop:0 %s, stop:1 %s);"
emergency_led = "color: white;border-radius: 10;background-color: qlineargradient(spread:pad, x1:0.145, y1:0.16, x2:0.92, y2:0.988636, stop:0 %s, stop:1 %s);"
warning_led = "color: white;border-radius: 10;background-color: qlineargradient(spread:pad, x1:0.232, y1:0.272, x2:0.98, y2:0.959773, stop:0 %s, stop:1 %s);"
default_led = "color: white;border-radius: 10;background-color: qlineargradient(spread:pad, x1:0.04, y1:0.0565909, x2:0.799, y2:0.795, stop:0 %s, stop:1 %s);"
def __init__(self, parent=None):
super().__init__(parent)
self.palette = get_accent_colors()
if self.palette is None:
# no theme!
self.palette = SimpleNamespace(
default=QColor("blue"),
success=QColor("green"),
warning=QColor("orange"),
emergency=QColor("red"),
)
self.setState("default")
self.setFixedSize(20, 20)
def setState(self, state: str):
match state:
case "success":
r, g, b, a = self.palette.success.getRgb()
self.setStyleSheet(
LedLabel.success_led
% (
f"rgba({r},{g},{b},{a})",
f"rgba({int(r*0.8)},{int(g*0.8)},{int(b*0.8)},{a})",
)
)
case "default":
r, g, b, a = self.palette.default.getRgb()
self.setStyleSheet(
LedLabel.default_led
% (
f"rgba({r},{g},{b},{a})",
f"rgba({int(r*0.8)},{int(g*0.8)},{int(b*0.8)},{a})",
)
)
case "warning":
r, g, b, a = self.palette.warning.getRgb()
self.setStyleSheet(
LedLabel.warning_led
% (
f"rgba({r},{g},{b},{a})",
f"rgba({int(r*0.8)},{int(g*0.8)},{int(b*0.8)},{a})",
)
)
case "emergency":
r, g, b, a = self.palette.emergency.getRgb()
self.setStyleSheet(
LedLabel.emergency_led
% (
f"rgba({r},{g},{b},{a})",
f"rgba({int(r*0.8)},{int(g*0.8)},{int(b*0.8)},{a})",
)
)
case unknown_state:
raise ValueError(
f"Unknown state {repr(unknown_state)}, must be one of default, success, warning or emergency"
)
class PopupDialog(QDialog):
def __init__(self, content_widget):
self.parent = content_widget.parent()
self.content_widget = content_widget
super().__init__(self.parent)
self.setAttribute(Qt.WA_DeleteOnClose)
self.content_widget.setParent(self)
QVBoxLayout(self)
self.layout().addWidget(self.content_widget)
self.content_widget.setVisible(True)
def closeEvent(self, event):
self.content_widget.setVisible(False)
self.content_widget.setParent(self.parent)
self.done(True)
class CompactPopupWidget(QWidget):
"""Container widget, that can display its content or have a compact form,
in this case clicking on a small button pops the contained widget up.
In the compact form, a LED-like indicator shows a status indicator.
"""
expand = Signal(bool)
def __init__(self, parent=None, layout=QVBoxLayout):
super().__init__(parent)
self._popup_window = None
self._expand_popup = True
QVBoxLayout(self)
self.compact_view_widget = QWidget(self)
self.compact_view_widget.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
QHBoxLayout(self.compact_view_widget)
self.compact_view_widget.layout().setSpacing(0)
self.compact_view_widget.layout().setContentsMargins(0, 0, 0, 0)
self.compact_view_widget.layout().addSpacerItem(
QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Fixed)
)
self.compact_label = QLabel(self.compact_view_widget)
self.compact_status = LedLabel(self.compact_view_widget)
self.compact_show_popup = QPushButton(self.compact_view_widget)
self.compact_show_popup.setFlat(True)
self.compact_show_popup.setIcon(
material_icon(icon_name="expand_content", size=(10, 10), convert_to_pixmap=False)
)
self.compact_view_widget.layout().addWidget(self.compact_label)
self.compact_view_widget.layout().addWidget(self.compact_status)
self.compact_view_widget.layout().addWidget(self.compact_show_popup)
self.compact_view_widget.setVisible(False)
self.layout().addWidget(self.compact_view_widget)
self.container = QWidget(self)
self.layout().addWidget(self.container)
self.container.setVisible(True)
layout(self.container)
self.layout = self.container.layout()
self.compact_show_popup.clicked.connect(self.show_popup)
def set_global_state(self, state: str):
"""Set the LED-indicator state
The LED indicator represents the 'global' state. State can be one of the
following: "default", "success", "warning", "emergency"
"""
self.compact_status.setState(state)
def show_popup(self):
"""Display the contained widgets in a popup dialog"""
if self._expand_popup:
# show popup
self._popup_window = PopupDialog(self.container)
self._popup_window.show()
self._popup_window.finished.connect(lambda: self.expand.emit(False))
self.expand.emit(True)
else:
if self.compact_view:
# expand in place
self.compact_view = False
self.compact_view_widget.setVisible(True)
self.compact_label.setVisible(False)
self.compact_status.setVisible(False)
self.compact_show_popup.setIcon(
material_icon(
icon_name="collapse_content", size=(10, 10), convert_to_pixmap=False
)
)
self.expand.emit(True)
else:
# back to compact form
self.compact_label.setVisible(True)
self.compact_status.setVisible(True)
self.compact_show_popup.setIcon(
material_icon(
icon_name="expand_content", size=(10, 10), convert_to_pixmap=False
)
)
self.compact_view = True
self.expand.emit(False)
def setSizePolicy(self, size_policy1, size_policy2=None):
# setting size policy on the compact popup widget will set
# the policy for the container, and for itself
if size_policy2 is None:
# assuming first form: setSizePolicy(QSizePolicy)
self.container.setSizePolicy(size_policy1)
QWidget.setSizePolicy(self, size_policy1)
else:
self.container.setSizePolicy(size_policy1, size_policy2)
QWidget.setSizePolicy(self, size_policy1, size_policy2)
def addWidget(self, widget):
"""Add a widget to the popup container
The popup container corresponds to the "full view" (not compact)
The widget is reparented to the container, and added to the container layout
"""
widget.setParent(self.container)
self.container.layout().addWidget(widget)
@Property(bool)
def compact_view(self):
return self.compact_label.isVisible()
@compact_view.setter
def compact_view(self, set_compact: bool):
"""Sets the compact form
If set_compact is True, the compact view is displayed ; otherwise,
the full view is displayed. This is handled by toggling visibility of
the container widget or the compact view widget.
"""
if set_compact:
self.compact_view_widget.setVisible(True)
self.container.setVisible(False)
QWidget.setSizePolicy(self, QSizePolicy.Fixed, QSizePolicy.Fixed)
else:
self.compact_view_widget.setVisible(False)
self.container.setVisible(True)
QWidget.setSizePolicy(self, self.container.sizePolicy())
if self.parentWidget():
self.parentWidget().adjustSize()
else:
self.adjustSize()
@Property(str)
def label(self):
return self.compact_label.text()
@label.setter
def label(self, compact_label_text: str):
"""Set the label text associated to the compact view"""
self.compact_label.setText(compact_label_text)
@Property(str)
def tooltip(self):
return self.compact_label.toolTip()
@tooltip.setter
def tooltip(self, tooltip: str):
"""Set the tooltip text associated to the compact view"""
self.compact_label.setToolTip(tooltip)
self.compact_status.setToolTip(tooltip)
@Property(bool)
def expand_popup(self):
return self._expand_popup
@expand_popup.setter
def expand_popup(self, popup: bool):
self._expand_popup = popup
def closeEvent(self, event):
# Called by Qt, on closing - since the children widgets can be
# BECWidgets, it is good to explicitely call 'close' on them,
# to ensure proper resources cleanup
for child in self.container.findChildren(QWidget, options=Qt.FindDirectChildrenOnly):
child.close()
super().closeEvent(event)

View File

@@ -1,54 +1,28 @@
from __future__ import annotations
from typing import Any, Type
import itertools
from typing import Type
from qtpy.QtWidgets import QWidget
from bec_widgets.cli.client_utils import BECGuiClient
class WidgetContainerUtils:
# We need one handler that checks if a WIDGET of a given name is already created for that DOCKAREA
# 1. If the name exists, then it depends whether the name was auto-generated -> add _1 to the name
# or alternatively raise an error that it can't be added again ( just raise an error)
# 2. Dock names in between docks should also be unique
@staticmethod
def has_name_valid_chars(name: str) -> bool:
"""Check if the name is valid.
def generate_unique_widget_id(container: dict, prefix: str = "widget") -> str:
"""
Generate a unique widget ID.
Args:
name(str): The name to be checked.
container(dict): The container of widgets.
prefix(str): The prefix of the widget ID.
Returns:
bool: True if the name is valid, False otherwise.
widget_id(str): The unique widget ID.
"""
if not name or len(name) > 256:
return False # Don't accept empty names or names longer than 256 characters
check_value = name.replace("_", "").replace("-", "")
if not check_value.isalnum() or not check_value.isascii():
return False
return True
@staticmethod
def generate_unique_name(name: str, list_of_names: list[str] | None = None) -> str:
"""Generate a unique ID.
Args:
name(str): The name of the widget.
Returns:
tuple (str): The unique name
"""
if list_of_names is None:
list_of_names = []
ii = 0
while ii < 1000: # 1000 is arbritrary!
name_candidate = f"{name}_{ii}"
if name_candidate not in list_of_names:
return name_candidate
ii += 1
raise ValueError("Could not generate a unique name after within 1000 attempts.")
existing_ids = set(container.keys())
for i in itertools.count(1):
widget_id = f"{prefix}_{i}"
if widget_id not in existing_ids:
return widget_id
@staticmethod
def find_first_widget_by_class(
@@ -72,36 +46,3 @@ class WidgetContainerUtils:
return None
else:
raise ValueError(f"No widget of class {widget_class} found.")
@staticmethod
def name_is_protected(name: str, container: Any = None) -> bool:
"""
Check if the name is not protected.
Args:
name(str): The name to be checked.
Returns:
bool: True if the name is not protected, False otherwise.
"""
if container is None:
container = BECGuiClient
gui_client_methods = set(filter(lambda x: not x.startswith("_"), dir(container)))
return name in gui_client_methods
@staticmethod
def raise_for_invalid_name(name: str, container: Any = None) -> None:
"""
Check if the name is valid. If not, raise a ValueError.
Args:
name(str): The name to be checked.
Raises:
ValueError: If the name is not valid.
"""
if not WidgetContainerUtils.has_name_valid_chars(name):
raise ValueError(
f"Name '{name}' contains invalid characters. Only alphanumeric characters, underscores, and dashes are allowed."
)
if WidgetContainerUtils.name_is_protected(name, container):
raise ValueError(f"Name '{name}' is protected. Please choose another name.")

View File

@@ -1,303 +1,110 @@
from __future__ import annotations
from collections import defaultdict
from typing import Any
import numpy as np
import pyqtgraph as pg
from qtpy.QtCore import QObject, Qt, Signal, Slot
from qtpy.QtWidgets import QApplication
class CrosshairScatterItem(pg.ScatterPlotItem):
def setDownsampling(self, ds=None, auto=None, method=None):
pass
def setClipToView(self, state):
pass
def setAlpha(self, *args, **kwargs):
pass
# from qtpy.QtCore import QObject, pyqtSignal
from qtpy.QtCore import QObject
from qtpy.QtCore import Signal as pyqtSignal
class Crosshair(QObject):
# QT Position of mouse cursor
positionChanged = Signal(tuple)
positionClicked = Signal(tuple)
# Plain crosshair position signals mapped to real coordinates
crosshairChanged = Signal(tuple)
crosshairClicked = Signal(tuple)
# Signal for 1D plot
coordinatesChanged1D = Signal(tuple)
coordinatesClicked1D = Signal(tuple)
coordinatesChanged1D = pyqtSignal(float, list)
coordinatesClicked1D = pyqtSignal(float, list)
# Signal for 2D plot
coordinatesChanged2D = Signal(tuple)
coordinatesClicked2D = Signal(tuple)
coordinatesChanged2D = pyqtSignal(float, float)
coordinatesClicked2D = pyqtSignal(float, float)
def __init__(
self,
plot_item: pg.PlotItem,
precision: int | None = None,
*,
min_precision: int = 2,
parent=None,
):
def __init__(self, plot_item: pg.PlotItem, precision: int = None, parent=None):
"""
Crosshair for 1D and 2D plots.
Args:
plot_item (pyqtgraph.PlotItem): The plot item to which the crosshair will be attached.
precision (int | None, optional): Fixed number of decimal places to display. If *None*, precision is chosen dynamically from the current view range.
min_precision (int, optional): The lower bound (in decimal places) used when dynamic precision is enabled. Defaults to 2.
precision (int, optional): Number of decimal places to round the coordinates to. Defaults to None.
parent (QObject, optional): Parent object for the QObject. Defaults to None.
"""
super().__init__(parent)
self.is_log_y = None
self.is_log_x = None
self.is_derivative = None
self.plot_item = plot_item
self._precision = precision
self._min_precision = max(0, int(min_precision)) # ensure nonnegative
self.precision = precision
self.v_line = pg.InfiniteLine(angle=90, movable=False)
self.v_line.skip_auto_range = True
self.h_line = pg.InfiniteLine(angle=0, movable=False)
self.h_line.skip_auto_range = True
# Add custom attribute to identify crosshair lines
self.v_line.is_crosshair = True
self.h_line.is_crosshair = True
self.plot_item.addItem(self.v_line, ignoreBounds=True)
self.plot_item.addItem(self.h_line, ignoreBounds=True)
# Initialize highlighted curve in a case of multiple curves
self.highlighted_curve_index = None
# Add TextItem to display coordinates
self.coord_label = pg.TextItem("", anchor=(1, 1), fill=(0, 0, 0, 100))
self.coord_label.setVisible(False) # Hide initially
self.coord_label.skip_auto_range = True
self.plot_item.addItem(self.coord_label)
# Signals to connect
self.proxy = pg.SignalProxy(
self.plot_item.scene().sigMouseMoved, rateLimit=60, slot=self.mouse_moved
)
self.positionChanged.connect(self.update_coord_label)
self.plot_item.scene().sigMouseClicked.connect(self.mouse_clicked)
# Connect signals from pyqtgraph right click menu
self.plot_item.ctrl.derivativeCheck.checkStateChanged.connect(self.check_derivatives)
self.plot_item.ctrl.logXCheck.checkStateChanged.connect(self.check_log)
self.plot_item.ctrl.logYCheck.checkStateChanged.connect(self.check_log)
self.plot_item.ctrl.downsampleSpin.valueChanged.connect(self.clear_markers)
# Initialize markers
self.items = []
self.marker_moved_1d = {}
self.marker_clicked_1d = {}
self.marker_2d_row = None
self.marker_2d_col = None
self.update_markers()
self.check_log()
self.check_derivatives()
self._connect_to_theme_change()
@property
def precision(self) -> int | None:
"""Fixed number of decimals; ``None`` enables dynamic mode."""
return self._precision
@precision.setter
def precision(self, value: int | None):
"""
Set the fixed number of decimals to display.
Args:
value(int | None): The number of decimals to display. If `None`, dynamic precision is used based on the view range.
"""
self._precision = value
@property
def min_precision(self) -> int:
"""Lower bound on decimals when dynamic precision is used."""
return self._min_precision
@min_precision.setter
def min_precision(self, value: int):
"""
Set the lower bound on decimals when dynamic precision is used.
Args:
value(int): The minimum number of decimals to display. Must be non-negative.
"""
self._min_precision = max(0, int(value))
def _current_precision(self) -> int:
"""
Get the current precision based on the view range or fixed precision.
"""
if self._precision is not None:
return self._precision
# Dynamically choose precision from the smaller visible span
view_range = self.plot_item.vb.viewRange()
x_span = abs(view_range[0][1] - view_range[0][0])
y_span = abs(view_range[1][1] - view_range[1][0])
# Ignore zero spans that can appear during initialisation
spans = [s for s in (x_span, y_span) if s > 0]
span = min(spans) if spans else 1.0
exponent = np.floor(np.log10(span)) # order of magnitude
decimals = max(0, int(-exponent) + 1)
return max(self._min_precision, decimals)
def _connect_to_theme_change(self):
"""Connect to the theme change signal."""
qapp = QApplication.instance()
if hasattr(qapp, "theme_signal"):
qapp.theme_signal.theme_updated.connect(self._update_theme)
self._update_theme()
@Slot(str)
def _update_theme(self, theme: str | None = None):
"""Update the theme."""
if theme is None:
qapp = QApplication.instance()
if hasattr(qapp, "theme"):
theme = qapp.theme.theme
else:
theme = "dark"
self.apply_theme(theme)
def apply_theme(self, theme: str):
"""Apply the theme to the plot."""
if theme == "dark":
text_color = "w"
label_bg_color = (50, 50, 50, 150)
elif theme == "light":
text_color = "k"
label_bg_color = (240, 240, 240, 150)
else:
text_color = "w"
label_bg_color = (50, 50, 50, 150)
self.coord_label.setColor(text_color)
self.coord_label.fill = pg.mkBrush(label_bg_color)
self.coord_label.border = pg.mkPen(None)
@Slot(int)
def update_highlighted_curve(self, curve_index: int):
"""
Update the highlighted curve in the case of multiple curves in a plot item.
Args:
curve_index(int): The index of curve to highlight
"""
self.highlighted_curve_index = curve_index
self.clear_markers()
self.marker_moved_1d = []
self.marker_clicked_1d = []
self.marker_2d = None
self.update_markers()
def update_markers(self):
"""Update the markers for the crosshair, creating new ones if necessary."""
if self.highlighted_curve_index is not None and hasattr(self.plot_item, "visible_curves"):
# Focus on the highlighted curve only
self.items = [self.plot_item.visible_curves[self.highlighted_curve_index]]
else:
# Handle all curves
self.items = self.plot_item.items
# Clear existing markers
for marker in self.marker_moved_1d + self.marker_clicked_1d:
self.plot_item.removeItem(marker)
if self.marker_2d:
self.plot_item.removeItem(self.marker_2d)
# Create or update markers
for item in self.items:
# Create new markers
self.marker_moved_1d = []
self.marker_clicked_1d = []
self.marker_2d = None
for item in self.plot_item.items:
if isinstance(item, pg.PlotDataItem): # 1D plot
pen = item.opts["pen"]
color = pen.color() if hasattr(pen, "color") else pg.mkColor(pen)
name = item.name() or str(id(item))
if name in self.marker_moved_1d:
# Update existing markers
marker_moved = self.marker_moved_1d[name]
marker_moved.setPen(pg.mkPen(color))
# Update clicked markers' brushes
for marker_clicked in self.marker_clicked_1d[name]:
alpha = marker_clicked.opts["brush"].color().alpha()
marker_clicked.setBrush(
pg.mkBrush(color.red(), color.green(), color.blue(), alpha)
)
# Update z-values
marker_moved.setZValue(item.zValue() + 1)
for marker_clicked in self.marker_clicked_1d[name]:
marker_clicked.setZValue(item.zValue() + 1)
else:
# Create new markers
marker_moved = CrosshairScatterItem(
size=10, pen=pg.mkPen(color), brush=pg.mkBrush(None)
marker_moved = pg.ScatterPlotItem(
size=10, pen=pg.mkPen(color), brush=pg.mkBrush(None)
)
marker_clicked = pg.ScatterPlotItem(
size=10, pen=pg.mkPen(None), brush=pg.mkBrush(color)
)
self.marker_moved_1d.append(marker_moved)
self.plot_item.addItem(marker_moved)
# Create glowing effect markers for clicked events
marker_clicked_list = []
for size, alpha in [(18, 64), (14, 128), (10, 255)]:
marker_clicked = pg.ScatterPlotItem(
size=size,
pen=pg.mkPen(None),
brush=pg.mkBrush(color.red(), color.green(), color.blue(), alpha),
)
marker_moved.skip_auto_range = True
marker_moved.is_crosshair = True
self.marker_moved_1d[name] = marker_moved
self.plot_item.addItem(marker_moved)
# Set marker z-value higher than the curve
marker_moved.setZValue(item.zValue() + 1)
marker_clicked_list.append(marker_clicked)
self.plot_item.addItem(marker_clicked)
# Create glowing effect markers for clicked events
marker_clicked_list = []
for size, alpha in [(18, 64), (14, 128), (10, 255)]:
marker_clicked = CrosshairScatterItem(
size=size,
pen=pg.mkPen(None),
brush=pg.mkBrush(color.red(), color.green(), color.blue(), alpha),
)
marker_clicked.skip_auto_range = True
marker_clicked.is_crosshair = True
self.plot_item.addItem(marker_clicked)
marker_clicked.setZValue(item.zValue() + 1)
marker_clicked_list.append(marker_clicked)
self.marker_clicked_1d[name] = marker_clicked_list
self.marker_clicked_1d.append(marker_clicked_list)
elif isinstance(item, pg.ImageItem): # 2D plot
if self.marker_2d_row is not None and self.marker_2d_col is not None:
continue
# Create horizontal ROI for row highlighting
if item.image is None:
continue
self.marker_2d_row = pg.ROI(
[0, 0], size=[item.image.shape[0], 1], pen=pg.mkPen("r", width=2), movable=False
self.marker_2d = pg.ROI(
[0, 0], size=[1, 1], pen=pg.mkPen("r", width=2), movable=False
)
self.marker_2d_row.skip_auto_range = True
self.plot_item.addItem(self.marker_2d_row)
self.plot_item.addItem(self.marker_2d)
# Create vertical ROI for column highlighting
self.marker_2d_col = pg.ROI(
[0, 0], size=[1, item.image.shape[1]], pen=pg.mkPen("r", width=2), movable=False
)
self.marker_2d_col.skip_auto_range = True
self.plot_item.addItem(self.marker_2d_col)
def snap_to_data(
self, x: float, y: float
) -> tuple[None, None] | tuple[defaultdict[Any, list], defaultdict[Any, list]]:
def snap_to_data(self, x, y) -> tuple:
"""
Finds the nearest data points to the given x and y coordinates.
Args:
x(float): The x-coordinate of the mouse cursor
y(float): The y-coordinate of the mouse cursor
x: The x-coordinate
y: The y-coordinate
Returns:
tuple: x and y values snapped to the nearest data
tuple: The nearest x and y values
"""
y_values = defaultdict(list)
x_values = defaultdict(list)
y_values_1d = []
x_values_1d = []
image_2d = None
# Iterate through items in the plot
for item in self.items:
for item in self.plot_item.items:
if isinstance(item, pg.PlotDataItem): # 1D plot
name = item.name() or str(id(item))
plot_data = item._getDisplayDataset()
if plot_data is None:
continue
x_data, y_data = plot_data.x, plot_data.y
x_data, y_data = item.xData, item.yData
if x_data is not None and y_data is not None:
if self.is_log_x:
min_x_data = np.min(x_data[x_data > 0])
@@ -305,58 +112,43 @@ class Crosshair(QObject):
min_x_data = np.min(x_data)
max_x_data = np.max(x_data)
if x < min_x_data or x > max_x_data:
y_values[name] = None
x_values[name] = None
continue
return None, None
closest_x, closest_y = self.closest_x_y_value(x, x_data, y_data)
y_values[name] = closest_y
x_values[name] = closest_x
y_values_1d.append(closest_y)
x_values_1d.append(closest_x)
elif isinstance(item, pg.ImageItem): # 2D plot
name = item.objectName() or str(id(item))
image_2d = item.image
if image_2d is None:
continue
# Clip the x and y values to the image dimensions to avoid out of bounds errors
y_values[name] = int(np.clip(y, 0, image_2d.shape[1] - 1))
x_values[name] = int(np.clip(x, 0, image_2d.shape[0] - 1))
if x_values and y_values:
if all(v is None for v in x_values.values()) or all(
v is None for v in y_values.values()
):
# Handle 1D plot
if y_values_1d:
if all(v is None for v in x_values_1d) or all(v is None for v in y_values_1d):
return None, None
return x_values, y_values
closest_x = min(x_values_1d, key=lambda xi: abs(xi - x)) # Snap x to closest data point
return closest_x, y_values_1d
# Handle 2D plot
if image_2d is not None:
x_idx = int(np.clip(x, 0, image_2d.shape[0] - 1))
y_idx = int(np.clip(y, 0, image_2d.shape[1] - 1))
return x_idx, y_idx
return None, None
def closest_x_y_value(self, input_x: float, list_x: list, list_y: list) -> tuple:
def closest_x_y_value(self, input_value: float, list_x: list, list_y: list) -> tuple:
"""
Find the closest x and y value to the input value.
Args:
input_x (float): Input value
input_value (float): Input value
list_x (list): List of x values
list_y (list): List of y values
Returns:
tuple: Closest x and y value
"""
# Convert lists to NumPy arrays
arr_x = np.asarray(list_x)
# Get the indices where x is not NaN
valid_indices = ~np.isnan(arr_x)
# Filter x array to exclude NaN values
filtered_x = arr_x[valid_indices]
# Find the index of the closest value in the filtered x array
closest_index = np.abs(filtered_x - input_x).argmin()
# Map back to the original index in the list_x and list_y arrays
original_index = np.where(valid_indices)[0][closest_index]
return list_x[original_index], list_y[original_index]
arr = np.asarray(list_x)
i = (np.abs(arr - input_value)).argmin()
return list_x[i], list_y[i]
def mouse_moved(self, event):
"""Handles the mouse moved event, updating the crosshair position and emitting signals.
@@ -364,54 +156,37 @@ class Crosshair(QObject):
Args:
event: The mouse moved event
"""
self.check_log()
pos = event[0]
self.update_markers()
if self.plot_item.vb.sceneBoundingRect().contains(pos):
mouse_point = self.plot_item.vb.mapSceneToView(pos)
self.v_line.setPos(mouse_point.x())
self.h_line.setPos(mouse_point.y())
x, y = mouse_point.x(), mouse_point.y()
self.v_line.setPos(x)
self.h_line.setPos(y)
scaled_x, scaled_y = self.scale_emitted_coordinates(mouse_point.x(), mouse_point.y())
self.crosshairChanged.emit((scaled_x, scaled_y))
self.positionChanged.emit((x, y))
if self.is_log_x:
x = 10**x
if self.is_log_y:
y = 10**y
x, y_values = self.snap_to_data(x, y)
x_snap_values, y_snap_values = self.snap_to_data(x, y)
if x_snap_values is None or y_snap_values is None:
return
if all(v is None for v in x_snap_values.values()) or all(
v is None for v in y_snap_values.values()
):
# not sure how we got here, but just to be safe...
return
precision = self._current_precision()
for item in self.items:
for item in self.plot_item.items:
if isinstance(item, pg.PlotDataItem):
name = item.name() or str(id(item))
x, y = x_snap_values[name], y_snap_values[name]
if x is None or y is None:
continue
self.marker_moved_1d[name].setData([x], [y])
x_snapped_scaled, y_snapped_scaled = self.scale_emitted_coordinates(x, y)
coordinate_to_emit = (
name,
round(x_snapped_scaled, precision),
round(y_snapped_scaled, precision),
if x is None or all(v is None for v in y_values):
return
self.coordinatesChanged1D.emit(
round(x, self.precision),
[round(y_val, self.precision) for y_val in y_values],
)
self.coordinatesChanged1D.emit(coordinate_to_emit)
for i, y_val in enumerate(y_values):
self.marker_moved_1d[i].setData(
[x if not self.is_log_x else np.log10(x)],
[y_val if not self.is_log_y else np.log10(y_val)],
)
elif isinstance(item, pg.ImageItem):
name = item.objectName() or str(id(item))
x, y = x_snap_values[name], y_snap_values[name]
if x is None or y is None:
continue
# Set position of horizontal ROI (row)
self.marker_2d_row.setPos([0, y])
# Set position of vertical ROI (column)
self.marker_2d_col.setPos([x, 0])
coordinate_to_emit = (name, x, y)
self.coordinatesChanged2D.emit(coordinate_to_emit)
else:
continue
if x is None or y_values is None:
return
self.coordinatesChanged2D.emit(x, y_values)
def mouse_clicked(self, event):
"""Handles the mouse clicked event, updating the crosshair position and emitting signals.
@@ -419,129 +194,38 @@ class Crosshair(QObject):
Args:
event: The mouse clicked event
"""
# we only accept left mouse clicks
if event.button() != Qt.MouseButton.LeftButton:
return
self.update_markers()
self.check_log()
if self.plot_item.vb.sceneBoundingRect().contains(event._scenePos):
mouse_point = self.plot_item.vb.mapSceneToView(event._scenePos)
x, y = mouse_point.x(), mouse_point.y()
scaled_x, scaled_y = self.scale_emitted_coordinates(mouse_point.x(), mouse_point.y())
self.crosshairClicked.emit((scaled_x, scaled_y))
self.positionClicked.emit((x, y))
x_snap_values, y_snap_values = self.snap_to_data(x, y)
if self.is_log_x:
x = 10**x
if self.is_log_y:
y = 10**y
x, y_values = self.snap_to_data(x, y)
if x_snap_values is None or y_snap_values is None:
return
if all(v is None for v in x_snap_values.values()) or all(
v is None for v in y_snap_values.values()
):
# not sure how we got here, but just to be safe...
return
precision = self._current_precision()
for item in self.items:
for item in self.plot_item.items:
if isinstance(item, pg.PlotDataItem):
name = item.name() or str(id(item))
x, y = x_snap_values[name], y_snap_values[name]
if x is None or y is None:
continue
for marker_clicked in self.marker_clicked_1d[name]:
marker_clicked.setData([x], [y])
x_snapped_scaled, y_snapped_scaled = self.scale_emitted_coordinates(x, y)
coordinate_to_emit = (
name,
round(x_snapped_scaled, precision),
round(y_snapped_scaled, precision),
if x is None or all(v is None for v in y_values):
return
self.coordinatesClicked1D.emit(
round(x, self.precision),
[round(y_val, self.precision) for y_val in y_values],
)
self.coordinatesClicked1D.emit(coordinate_to_emit)
for i, y_val in enumerate(y_values):
for marker in self.marker_clicked_1d[i]:
marker.setData(
[x if not self.is_log_x else np.log10(x)],
[y_val if not self.is_log_y else np.log10(y_val)],
)
elif isinstance(item, pg.ImageItem):
name = item.objectName() or str(id(item))
x, y = x_snap_values[name], y_snap_values[name]
if x is None or y is None:
continue
# Set position of horizontal ROI (row)
self.marker_2d_row.setPos([0, y])
# Set position of vertical ROI (column)
self.marker_2d_col.setPos([x, 0])
coordinate_to_emit = (name, x, y)
self.coordinatesClicked2D.emit(coordinate_to_emit)
else:
continue
def clear_markers(self):
"""Clears the markers from the plot."""
for marker in self.marker_moved_1d.values():
self.plot_item.removeItem(marker)
for markers in self.marker_clicked_1d.values():
for marker in markers:
self.plot_item.removeItem(marker)
self.marker_moved_1d.clear()
self.marker_clicked_1d.clear()
def scale_emitted_coordinates(self, x, y):
"""Scales the emitted coordinates if the axes are in log scale.
Args:
x (float): The x-coordinate
y (float): The y-coordinate
Returns:
tuple: The scaled x and y coordinates
"""
if self.is_log_x:
x = 10**x
if self.is_log_y:
y = 10**y
return x, y
def update_coord_label(self, pos: tuple):
"""Updates the coordinate label based on the crosshair position and axis scales.
Args:
pos (tuple): The (x, y) position of the crosshair.
"""
x, y = pos
x_scaled, y_scaled = self.scale_emitted_coordinates(x, y)
precision = self._current_precision()
text = f"({x_scaled:.{precision}f}, {y_scaled:.{precision}f})"
for item in self.items:
if isinstance(item, pg.ImageItem):
image = item.image
if image is None:
continue
ix = int(np.clip(x, 0, image.shape[0] - 1))
iy = int(np.clip(y, 0, image.shape[1] - 1))
intensity = image[ix, iy]
text += f"\nIntensity: {intensity:.{precision}f}"
break
# Update coordinate label
self.coord_label.setText(text)
self.coord_label.setPos(x, y)
self.coord_label.setVisible(True)
if x is None or y_values is None:
return
self.coordinatesClicked2D.emit(x, y_values)
self.marker_2d.setPos([x, y_values])
def check_log(self):
"""Checks if the x or y axis is in log scale and updates the internal state accordingly."""
self.is_log_x = self.plot_item.axes["bottom"]["item"].logMode
self.is_log_y = self.plot_item.axes["left"]["item"].logMode
self.clear_markers()
def check_derivatives(self):
"""Checks if the derivatives are enabled and updates the internal state accordingly."""
self.is_derivative = self.plot_item.ctrl.derivativeCheck.isChecked()
self.clear_markers()
def cleanup(self):
if self.marker_2d_row is not None:
self.plot_item.removeItem(self.marker_2d_row)
self.marker_2d_row = None
if self.marker_2d_col is not None:
self.plot_item.removeItem(self.marker_2d_col)
self.marker_2d_col = None
self.plot_item.removeItem(self.v_line)
self.plot_item.removeItem(self.h_line)
self.plot_item.removeItem(self.coord_label)
self.clear_markers()
self.is_log_x = self.plot_item.ctrl.logXCheck.isChecked()
self.is_log_y = self.plot_item.ctrl.logYCheck.isChecked()

View File

@@ -17,24 +17,12 @@ class EntryValidator:
raise ValueError(f"Device '{name}' not found in current BEC session")
device = self.devices[name]
description = device.describe()
# Build list of available signal entries from device._info['signals']
signals_dict = getattr(device, "_info", {}).get("signals", {})
available_entries = [
sig.get("obj_name") for sig in signals_dict.values() if sig.get("obj_name")
]
# If no signals are found, means device is a signal, use the device name as the entry
if not available_entries:
available_entries = [name]
if entry is None or entry == "":
if entry is None:
entry = next(iter(device._hints), name) if hasattr(device, "_hints") else name
if entry not in available_entries:
raise ValueError(
f"Entry '{entry}' not found in device '{name}' signals. "
f"Available signals: '{available_entries}'"
)
if entry not in description:
raise ValueError(f"Entry '{entry}' not found in device '{name}' signals")
return entry

View File

@@ -1,344 +0,0 @@
import functools
import sys
import traceback
from bec_lib.logger import bec_logger
from qtpy.QtCore import Property, QObject, Qt, Signal, Slot
from qtpy.QtWidgets import QApplication, QMessageBox, QPushButton, QVBoxLayout, QWidget
logger = bec_logger.logger
def SafeProperty(prop_type, *prop_args, popup_error: bool = False, default=None, **prop_kwargs):
"""
Decorator to create a Qt Property with safe getter and setter so that
Qt Designer won't crash if an exception occurs in either method.
Args:
prop_type: The property type (e.g., str, bool, int, custom classes, etc.)
popup_error (bool): If True, show a popup for any error; otherwise, ignore or log silently.
default: Any default/fallback value to return if the getter raises an exception.
*prop_args, **prop_kwargs: Passed along to the underlying Qt Property constructor.
Usage:
@SafeProperty(int, default=-1)
def some_value(self) -> int:
# your getter logic
return ... # if an exception is raised, returns -1
@some_value.setter
def some_value(self, val: int):
# your setter logic
...
"""
def decorator(py_getter):
"""Decorator for the user's property getter function."""
@functools.wraps(py_getter)
def safe_getter(self_):
try:
return py_getter(self_)
except Exception:
# Identify which property function triggered error
prop_name = f"{py_getter.__module__}.{py_getter.__qualname__}"
error_msg = traceback.format_exc()
if popup_error:
ErrorPopupUtility().custom_exception_hook(*sys.exc_info(), popup_error=True)
logger.error(f"SafeProperty error in GETTER of '{prop_name}':\n{error_msg}")
return default
class PropertyWrapper:
"""
Intermediate wrapper used so that the user can optionally chain .setter(...).
"""
def __init__(self, getter_func):
# We store only our safe_getter in the wrapper
self.getter_func = safe_getter
def setter(self, setter_func):
"""Wraps the user-defined setter to handle errors safely."""
@functools.wraps(setter_func)
def safe_setter(self_, value):
try:
return setter_func(self_, value)
except Exception:
prop_name = f"{setter_func.__module__}.{setter_func.__qualname__}"
error_msg = traceback.format_exc()
if popup_error:
ErrorPopupUtility().custom_exception_hook(
*sys.exc_info(), popup_error=True
)
logger.error(f"SafeProperty error in SETTER of '{prop_name}':\n{error_msg}")
return
# Return the full read/write Property
return Property(prop_type, self.getter_func, safe_setter, *prop_args, **prop_kwargs)
def __call__(self):
"""
If user never calls `.setter(...)`, produce a read-only property.
"""
return Property(prop_type, self.getter_func, None, *prop_args, **prop_kwargs)
return PropertyWrapper(py_getter)
return decorator
def SafeSlot(*slot_args, **slot_kwargs): # pylint: disable=invalid-name
"""Function with args, acting like a decorator, applying "error_managed" decorator + Qt Slot
to the passed function, to display errors instead of potentially raising an exception
'popup_error' keyword argument can be passed with boolean value if a dialog should pop up,
otherwise error display is left to the original exception hook
'verify_sender' keyword argument can be passed with boolean value if the sender should be verified
before executing the slot. If True, the slot will only execute if the sender is a QObject. This is
useful to prevent function calls from already deleted objects.
'raise_error' keyword argument can be passed with boolean value if the error should be raised
after the error is displayed. This is useful to propagate the error to the caller but should be used
with great care to avoid segfaults.
The keywords above are stored in a container which can be overridden by passing
'_override_slot_params' keyword argument with a dictionary containing the keywords to override.
This is useful to override the default behavior of the decorator for a specific function call.
"""
_slot_params = {
"popup_error": bool(slot_kwargs.pop("popup_error", False)),
"verify_sender": bool(slot_kwargs.pop("verify_sender", False)),
"raise_error": bool(slot_kwargs.pop("raise_error", False)),
}
def error_managed(method):
@Slot(*slot_args, **slot_kwargs)
@functools.wraps(method)
def wrapper(*args, **kwargs):
_override_slot_params = kwargs.pop("_override_slot_params", {})
_slot_params.update(_override_slot_params)
try:
if not _slot_params["verify_sender"] or len(args) == 0:
return method(*args, **kwargs)
_instance = args[0]
if not isinstance(_instance, QObject):
return method(*args, **kwargs)
sender = _instance.sender()
if sender is None:
logger.info(
f"Sender is None for {method.__module__}.{method.__qualname__}, "
"skipping method call."
)
return
return method(*args, **kwargs)
except Exception:
slot_name = f"{method.__module__}.{method.__qualname__}"
error_msg = traceback.format_exc()
if _slot_params["popup_error"]:
ErrorPopupUtility().custom_exception_hook(*sys.exc_info(), popup_error=True)
logger.error(f"SafeSlot error in slot '{slot_name}':\n{error_msg}")
if _slot_params["raise_error"]:
raise
return wrapper
return error_managed
class WarningPopupUtility(QObject):
"""
Utility class to show warning popups in the application.
"""
@SafeSlot(str, str, str, QWidget)
def show_warning_message(self, title, message, detailed_text, widget):
msg = QMessageBox(widget)
msg.setIcon(QMessageBox.Warning)
msg.setWindowTitle(title)
msg.setText(message)
msg.setStandardButtons(QMessageBox.Ok)
msg.setDetailedText(detailed_text)
msg.exec_()
def show_warning(self, title: str, message: str, detailed_text: str, widget: QWidget = None):
"""
Show a warning message with the given title, message, and detailed text.
Args:
title (str): The title of the warning message.
message (str): The main text of the warning message.
detailed_text (str): The detailed text to show when the user expands the message.
widget (QWidget): The parent widget for the message box.
"""
self.show_warning_message(title, message, detailed_text, widget)
_popup_utility_instance = None
class _ErrorPopupUtility(QObject):
"""
Utility class to manage error popups in the application to show error messages to the users.
This class is singleton and the error popup can be enabled or disabled globally or attach to widget methods with decorator @error_managed.
"""
error_occurred = Signal(str, str, QWidget)
def __init__(self, parent=None):
super().__init__(parent=parent)
self.error_occurred.connect(self.show_error_message)
self.enable_error_popup = False
self._initialized = True
sys.excepthook = self.custom_exception_hook
@SafeSlot(str, str, QWidget)
def show_error_message(self, title, message, widget):
detailed_text = self.format_traceback(message)
error_message = self.parse_error_message(detailed_text)
msg = QMessageBox(widget)
msg.setIcon(QMessageBox.Critical)
msg.setWindowTitle(title)
msg.setText(error_message)
msg.setStandardButtons(QMessageBox.Ok)
msg.setDetailedText(detailed_text)
msg.setTextInteractionFlags(Qt.TextSelectableByMouse)
msg.setMinimumWidth(600)
msg.setMinimumHeight(400)
msg.exec_()
def show_property_error(self, title, message, widget):
"""
Show a property-specific error message.
"""
self.error_occurred.emit(title, message, widget)
def format_traceback(self, traceback_message: str) -> str:
"""
Format the traceback message to be displayed in the error popup by adding indentation to each line.
Args:
traceback_message(str): The traceback message to be formatted.
Returns:
str: The formatted traceback message.
"""
formatted_lines = []
lines = traceback_message.split("\n")
for line in lines:
formatted_lines.append(" " + line) # Add indentation to each line
return "\n".join(formatted_lines)
def parse_error_message(self, traceback_message):
lines = traceback_message.split("\n")
error_message = "Error occurred. See details."
capture = False
captured_message = []
for line in lines:
if "raise" in line:
capture = True
continue
if capture:
if line.strip() and not line.startswith(" File "):
captured_message.append(line.strip())
else:
break
if captured_message:
error_message = " ".join(captured_message)
return error_message
def get_error_message(self, exctype, value, tb):
return "".join(traceback.format_exception(exctype, value, tb))
def custom_exception_hook(self, exctype, value, tb, popup_error=False):
if popup_error or self.enable_error_popup:
self.error_occurred.emit(
"Method error" if popup_error else "Application Error",
self.get_error_message(exctype, value, tb),
self.parent(),
)
else:
sys.__excepthook__(exctype, value, tb) # Call the original excepthook
def enable_global_error_popups(self, state: bool):
"""
Enable or disable global error popups for all applications.
Args:
state(bool): True to enable error popups, False to disable error popups.
"""
self.enable_error_popup = bool(state)
def ErrorPopupUtility():
global _popup_utility_instance
if not _popup_utility_instance:
_popup_utility_instance = _ErrorPopupUtility()
return _popup_utility_instance
class ExampleWidget(QWidget): # pragma: no cover
"""
Example widget to demonstrate error handling with the ErrorPopupUtility.
Warnings -> This example works properly only with PySide6, PyQt6 has a bug with the error handling.
"""
def __init__(self, parent=None):
super().__init__(parent=parent)
self.init_ui()
self.warning_utility = WarningPopupUtility(self)
def init_ui(self):
self.layout = QVBoxLayout(self)
# Button to trigger method with error handling
self.error_button = QPushButton("Trigger Handled Error", self)
self.error_button.clicked.connect(self.method_with_error_handling)
self.layout.addWidget(self.error_button)
# Button to trigger method without error handling
self.normal_button = QPushButton("Trigger Normal Error", self)
self.normal_button.clicked.connect(self.method_without_error_handling)
self.layout.addWidget(self.normal_button)
# Button to trigger warning popup
self.warning_button = QPushButton("Trigger Warning", self)
self.warning_button.clicked.connect(self.trigger_warning)
self.layout.addWidget(self.warning_button)
@SafeSlot(popup_error=True)
def method_with_error_handling(self):
"""This method raises an error and the exception is handled by the decorator."""
raise ValueError("This is a handled error.")
@SafeSlot()
def method_without_error_handling(self):
"""This method raises an error and the exception is not handled here."""
raise ValueError("This is an unhandled error.")
@SafeSlot()
def trigger_warning(self):
"""Trigger a warning using the WarningPopupUtility."""
self.warning_utility.show_warning(
title="Warning",
message="This is a warning message.",
detailed_text="This is the detailed text of the warning message.",
widget=self,
)
if __name__ == "__main__": # pragma: no cover
app = QApplication(sys.argv)
widget = ExampleWidget()
widget.show()
sys.exit(app.exec_())

View File

@@ -1,128 +0,0 @@
from __future__ import annotations
from bec_qthemes import material_icon
from qtpy.QtCore import Signal
from qtpy.QtWidgets import (
QApplication,
QFrame,
QHBoxLayout,
QLabel,
QLayout,
QSizePolicy,
QToolButton,
QVBoxLayout,
QWidget,
)
from bec_widgets.utils.clickable_label import ClickableLabel
from bec_widgets.utils.error_popups import SafeProperty, SafeSlot
class ExpandableGroupFrame(QFrame):
expansion_state_changed = Signal()
EXPANDED_ICON_NAME: str = "collapse_all"
COLLAPSED_ICON_NAME: str = "expand_all"
def __init__(
self, parent: QWidget | None = None, title: str = "", expanded: bool = True, icon: str = ""
) -> None:
super().__init__(parent=parent)
self._expanded = expanded
self.setFrameStyle(QFrame.Shape.StyledPanel | QFrame.Shadow.Plain)
self.setSizePolicy(QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Minimum)
self._layout = QVBoxLayout()
self._layout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self._layout)
self._create_title_layout(title, icon)
self._contents = QWidget(self)
self._layout.addWidget(self._contents)
self._expansion_button.clicked.connect(self.switch_expanded_state)
self.expanded = self._expanded # type: ignore
self.expansion_state_changed.emit()
def _create_title_layout(self, title: str, icon: str):
self._title_layout = QHBoxLayout()
self._layout.addLayout(self._title_layout)
self._title = ClickableLabel(f"<b>{title}</b>")
self._title_icon = ClickableLabel()
self._title_layout.addWidget(self._title_icon)
self._title_layout.addWidget(self._title)
self.icon_name = icon
self._title.clicked.connect(self.switch_expanded_state)
self._title_icon.clicked.connect(self.switch_expanded_state)
self._title_layout.addStretch(1)
self._expansion_button = QToolButton()
self._update_expansion_icon()
self._title_layout.addWidget(self._expansion_button, stretch=1)
def set_layout(self, layout: QLayout) -> None:
self._contents.setLayout(layout)
self._contents.layout().setContentsMargins(0, 0, 0, 0) # type: ignore
@SafeSlot()
def switch_expanded_state(self):
self.expanded = not self.expanded # type: ignore
self._update_expansion_icon()
self.expansion_state_changed.emit()
@SafeProperty(bool)
def expanded(self): # type: ignore
return self._expanded
@expanded.setter
def expanded(self, expanded: bool):
self._expanded = expanded
self._contents.setVisible(expanded)
self.updateGeometry()
self.adjustSize()
def _update_expansion_icon(self):
self._expansion_button.setIcon(
material_icon(icon_name=self.EXPANDED_ICON_NAME, size=(10, 10), convert_to_pixmap=False)
if self.expanded
else material_icon(
icon_name=self.COLLAPSED_ICON_NAME, size=(10, 10), convert_to_pixmap=False
)
)
@SafeProperty(str)
def icon_name(self): # type: ignore
return self._title_icon_name
@icon_name.setter
def icon_name(self, icon_name: str):
self._title_icon_name = icon_name
self._set_title_icon(self._title_icon_name)
def _set_title_icon(self, icon_name: str):
if icon_name:
self._title_icon.setVisible(True)
self._title_icon.setPixmap(
material_icon(icon_name=icon_name, size=(20, 20), convert_to_pixmap=True)
)
else:
self._title_icon.setVisible(False)
# Application example
if __name__ == "__main__": # pragma: no cover
app = QApplication([])
frame = ExpandableGroupFrame()
layout = QVBoxLayout()
frame.set_layout(layout)
layout.addWidget(QLabel("test1"))
layout.addWidget(QLabel("test2"))
layout.addWidget(QLabel("test3"))
frame.show()
app.exec()

View File

@@ -1,272 +0,0 @@
"""Module for handling filter I/O operations in BEC Widgets for input fields.
These operations include filtering device/signal names and/or device types.
"""
from abc import ABC, abstractmethod
from bec_lib.logger import bec_logger
from qtpy.QtCore import QStringListModel
from qtpy.QtWidgets import QComboBox, QCompleter, QLineEdit
from bec_widgets.utils.ophyd_kind_util import Kind
logger = bec_logger.logger
class WidgetFilterHandler(ABC):
"""Abstract base class for widget filter handlers"""
@abstractmethod
def set_selection(self, widget, selection: list[str | tuple]) -> None:
"""Set the filtered_selection for the widget
Args:
widget: Widget instance
selection (list[str | tuple]): Filtered selection of items.
If tuple, it contains (text, data) pairs.
"""
@abstractmethod
def check_input(self, widget, text: str) -> bool:
"""Check if the input text is in the filtered selection
Args:
widget: Widget instance
text (str): Input text
Returns:
bool: True if the input text is in the filtered selection
"""
@abstractmethod
def update_with_kind(
self, kind: Kind, signal_filter: set, device_info: dict, device_name: str
) -> list[str | tuple]:
"""Update the selection based on the kind of signal.
Args:
kind (Kind): The kind of signal to filter.
signal_filter (set): Set of signal kinds to filter.
device_info (dict): Dictionary containing device information.
device_name (str): Name of the device.
Returns:
list[str | tuple]: A list of filtered signals based on the kind.
"""
# This method should be implemented in subclasses or extended as needed
class LineEditFilterHandler(WidgetFilterHandler):
"""Handler for QLineEdit widget"""
def set_selection(self, widget: QLineEdit, selection: list[str | tuple]) -> None:
"""Set the selection for the widget to the completer model
Args:
widget (QLineEdit): The QLineEdit widget
selection (list[str | tuple]): Filtered selection of items. If tuple, it contains (text, data) pairs.
"""
if isinstance(selection, tuple):
# If selection is a tuple, it contains (text, data) pairs
selection = [text for text, _ in selection]
if not isinstance(widget.completer, QCompleter):
completer = QCompleter(widget)
widget.setCompleter(completer)
widget.completer.setModel(QStringListModel(selection, widget))
def check_input(self, widget: QLineEdit, text: str) -> bool:
"""Check if the input text is in the filtered selection
Args:
widget (QLineEdit): The QLineEdit widget
text (str): Input text
Returns:
bool: True if the input text is in the filtered selection
"""
model = widget.completer.model()
model_data = [model.data(model.index(i)) for i in range(model.rowCount())]
return text in model_data
def update_with_kind(
self, kind: Kind, signal_filter: set, device_info: dict, device_name: str
) -> list[str | tuple]:
"""Update the selection based on the kind of signal.
Args:
kind (Kind): The kind of signal to filter.
signal_filter (set): Set of signal kinds to filter.
device_info (dict): Dictionary containing device information.
device_name (str): Name of the device.
Returns:
list[str | tuple]: A list of filtered signals based on the kind.
"""
return [
signal
for signal, signal_info in device_info.items()
if kind in signal_filter and (signal_info.get("kind_str", None) == str(kind.name))
]
class ComboBoxFilterHandler(WidgetFilterHandler):
"""Handler for QComboBox widget"""
def set_selection(self, widget: QComboBox, selection: list[str | tuple]) -> None:
"""Set the selection for the widget to the completer model
Args:
widget (QComboBox): The QComboBox widget
selection (list[str | tuple]): Filtered selection of items. If tuple, it contains (text, data) pairs.
"""
widget.clear()
if len(selection) == 0:
return
for element in selection:
if isinstance(element, str):
widget.addItem(element)
elif isinstance(element, tuple):
# If element is a tuple, it contains (text, data) pairs
widget.addItem(*element)
def check_input(self, widget: QComboBox, text: str) -> bool:
"""Check if the input text is in the filtered selection
Args:
widget (QComboBox): The QComboBox widget
text (str): Input text
Returns:
bool: True if the input text is in the filtered selection
"""
return text in [widget.itemText(i) for i in range(widget.count())]
def update_with_kind(
self, kind: Kind, signal_filter: set, device_info: dict, device_name: str
) -> list[str | tuple]:
"""Update the selection based on the kind of signal.
Args:
kind (Kind): The kind of signal to filter.
signal_filter (set): Set of signal kinds to filter.
device_info (dict): Dictionary containing device information.
device_name (str): Name of the device.
Returns:
list[str | tuple]: A list of filtered signals based on the kind.
"""
out = []
for signal, signal_info in device_info.items():
if kind not in signal_filter or (signal_info.get("kind_str", None) != str(kind.name)):
continue
obj_name = signal_info.get("obj_name", "")
component_name = signal_info.get("component_name", "")
signal_wo_device = obj_name.removeprefix(f"{device_name}_")
if not signal_wo_device:
signal_wo_device = obj_name
if signal_wo_device != signal and component_name.replace(".", "_") != signal_wo_device:
# If the object name is not the same as the signal name, we use the object name
# to display in the combobox.
out.append((f"{signal_wo_device} ({signal})", signal_info))
else:
# If the object name is the same as the signal name, we do not change it.
out.append((signal, signal_info))
return out
class FilterIO:
"""Public interface to set filters for input widgets.
It supports the list of widgets stored in class attribute _handlers.
"""
_handlers = {QLineEdit: LineEditFilterHandler, QComboBox: ComboBoxFilterHandler}
@staticmethod
def set_selection(widget, selection: list[str | tuple], ignore_errors=True):
"""
Retrieve value from the widget instance.
Args:
widget: Widget instance.
selection (list[str | tuple]): Filtered selection of items.
If tuple, it contains (text, data) pairs.
ignore_errors(bool, optional): Whether to ignore if no handler is found.
"""
handler_class = FilterIO._find_handler(widget)
if handler_class:
return handler_class().set_selection(widget=widget, selection=selection)
if not ignore_errors:
raise ValueError(
f"No matching handler for widget type: {type(widget)} in handler list {FilterIO._handlers}"
)
return None
@staticmethod
def check_input(widget, text: str, ignore_errors=True):
"""
Check if the input text is in the filtered selection.
Args:
widget: Widget instance.
text(str): Input text.
ignore_errors(bool, optional): Whether to ignore if no handler is found.
Returns:
bool: True if the input text is in the filtered selection.
"""
handler_class = FilterIO._find_handler(widget)
if handler_class:
return handler_class().check_input(widget=widget, text=text)
if not ignore_errors:
raise ValueError(
f"No matching handler for widget type: {type(widget)} in handler list {FilterIO._handlers}"
)
return None
@staticmethod
def update_with_kind(
widget, kind: Kind, signal_filter: set, device_info: dict, device_name: str
) -> list[str | tuple]:
"""
Update the selection based on the kind of signal.
Args:
widget: Widget instance.
kind (Kind): The kind of signal to filter.
signal_filter (set): Set of signal kinds to filter.
device_info (dict): Dictionary containing device information.
device_name (str): Name of the device.
Returns:
list[str | tuple]: A list of filtered signals based on the kind.
"""
handler_class = FilterIO._find_handler(widget)
if handler_class:
return handler_class().update_with_kind(
kind=kind,
signal_filter=signal_filter,
device_info=device_info,
device_name=device_name,
)
raise ValueError(
f"No matching handler for widget type: {type(widget)} in handler list {FilterIO._handlers}"
)
@staticmethod
def _find_handler(widget):
"""
Find the appropriate handler for the widget by checking its base classes.
Args:
widget: Widget instance.
Returns:
handler_class: The handler class if found, otherwise None.
"""
for base in type(widget).__mro__:
if base in FilterIO._handlers:
return FilterIO._handlers[base]
return None

View File

@@ -1,279 +0,0 @@
from __future__ import annotations
from types import NoneType
from typing import NamedTuple
from bec_lib.logger import bec_logger
from bec_qthemes import material_icon
from pydantic import BaseModel, ValidationError
from qtpy.QtCore import Signal # type: ignore
from qtpy.QtWidgets import QApplication, QGridLayout, QLabel, QSizePolicy, QVBoxLayout, QWidget
from bec_widgets.utils.bec_widget import BECWidget
from bec_widgets.utils.compact_popup import CompactPopupWidget
from bec_widgets.utils.error_popups import SafeProperty
from bec_widgets.utils.forms_from_types import styles
from bec_widgets.utils.forms_from_types.items import (
DynamicFormItem,
DynamicFormItemType,
FormItemSpec,
widget_from_type,
)
logger = bec_logger.logger
class GridRow(NamedTuple):
i: int
label: QLabel
widget: DynamicFormItem
class TypedForm(BECWidget, QWidget):
PLUGIN = True
ICON_NAME = "list_alt"
value_changed = Signal()
RPC = True
USER_ACCESS = ["enabled", "enabled.setter"]
def __init__(
self,
parent=None,
items: list[tuple[str, type]] | None = None,
form_item_specs: list[FormItemSpec] | None = None,
enabled: bool = True,
pretty_display: bool = False,
client=None,
**kwargs,
):
"""Widget with a list of form items based on a list of types.
Args:
items (list[tuple[str, type]]): list of tuples of a name for the field and its type.
Should be a type supported by the logic in items.py
form_item_specs (list[FormItemSpec]): list of form item specs, equivalent to items.
only one of items or form_item_specs should be
supplied.
enabled (bool, optional): whether fields are enabled for editing.
pretty_display (bool, optional): Whether to use a pretty display for the widget. Defaults to False. If True, disables the widget, doesn't add a clear button, and adapts the stylesheet for non-editable display.
"""
if items is not None and form_item_specs is not None:
logger.error(
"Must specify one and only one of items and form_item_specs! Ignoring `items`."
)
items = None
if items is None and form_item_specs is None:
logger.error("Must specify one and only one of items and form_item_specs!")
items = []
super().__init__(parent=parent, client=client, **kwargs)
self._items = form_item_specs or [
FormItemSpec(name=name, item_type=item_type, pretty_display=pretty_display)
for name, item_type in items # type: ignore
]
self.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Minimum)
self._layout = QVBoxLayout()
self._layout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self._layout)
self._enabled: bool = enabled
self._form_grid_container = QWidget(parent=self)
self._form_grid_container.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Minimum)
self._form_grid = QWidget(parent=self._form_grid_container)
self._form_grid.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Minimum)
self._layout.addWidget(self._form_grid_container)
self._form_grid_container.setLayout(QVBoxLayout())
self._form_grid.setLayout(self._new_grid_layout())
self._widget_types: dict | None = None
self._widget_from_type = widget_from_type
self._post_init()
def _post_init(self):
"""Override this if a subclass should do things after super().__init__ and before populate()"""
self.populate()
self.enabled = self._enabled # type: ignore # QProperty
def populate(self):
self._clear_grid()
for r, item in enumerate(self._items):
self._add_griditem(item, r)
gl: QGridLayout = self._form_grid.layout()
gl.setRowStretch(gl.rowCount(), 1)
def _add_griditem(self, item: FormItemSpec, row: int):
grid = self._form_grid.layout()
label = QLabel(item.name)
label.setProperty("_model_field_name", item.name)
label.setToolTip(item.info.description or item.name)
grid.addWidget(label, row, 0)
widget = self._widget_from_type(item, self._widget_types)(parent=self, spec=item)
widget.valueChanged.connect(self.value_changed)
widget.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Minimum)
grid.addWidget(widget, row, 1)
def enumerate_form_widgets(self):
"""Return a generator over the rows of the form, with the row number, the label widget (to
which the field name is attached as a property "_model_field_name"), and the entry widget"""
grid: QGridLayout = self._form_grid.layout() # type: ignore
for i in range(grid.rowCount() - 1): # One extra row for stretch
yield GridRow(i, grid.itemAtPosition(i, 0).widget(), grid.itemAtPosition(i, 1).widget())
def _dict_from_grid(self) -> dict[str, DynamicFormItemType]:
return {
row.label.property("_model_field_name"): row.widget.getValue()
for row in self.enumerate_form_widgets()
}
def _clear_grid(self):
if (old_layout := self._form_grid.layout()) is not None:
while old_layout.count():
item = old_layout.takeAt(0)
widget = item.widget()
if widget is not None:
widget.deleteLater()
old_layout.deleteLater()
self._form_grid.deleteLater()
self._form_grid = QWidget()
self._form_grid.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Minimum)
self._form_grid.setLayout(self._new_grid_layout())
self._form_grid_container.layout().addWidget(self._form_grid)
self.update_size()
def update_size(self):
self._form_grid.adjustSize()
self._form_grid_container.adjustSize()
self.adjustSize()
def _new_grid_layout(self):
new_grid = QGridLayout()
new_grid.setContentsMargins(0, 0, 0, 0)
return new_grid
@property
def widget_dict(self):
return {
row.label.property("_model_field_name"): row.widget
for row in self.enumerate_form_widgets()
}
@SafeProperty(bool)
def enabled(self):
return self._enabled
@enabled.setter
def enabled(self, value: bool):
self._enabled = value
self.setEnabled(value)
class PydanticModelForm(TypedForm):
metadata_updated = Signal(dict)
metadata_cleared = Signal(NoneType)
def __init__(
self,
parent=None,
data_model: type[BaseModel] | None = None,
enabled: bool = True,
pretty_display: bool = False,
client=None,
**kwargs,
):
"""
A form generated from a pydantic model.
Args:
data_model (type[BaseModel]): the model class for which to generate a form.
enabled (bool, optional): whether fields are enabled for editing.
pretty_display (bool, optional): Whether to use a pretty display for the widget. Defaults to False. If True, disables the widget, doesn't add a clear button, and adapts the stylesheet for non-editable display.
"""
self._pretty_display = pretty_display
self._md_schema = data_model
super().__init__(
parent=parent,
form_item_specs=self._form_item_specs(),
enabled=enabled,
client=client,
**kwargs,
)
self._validity = CompactPopupWidget()
self._validity.compact_view = True # type: ignore
self._validity.label = "Metadata validity" # type: ignore
self._validity.compact_show_popup.setIcon(
material_icon(icon_name="info", size=(10, 10), convert_to_pixmap=False)
)
self._validity_message = QLabel("Not yet validated")
self._validity.addWidget(self._validity_message)
self._layout.addWidget(self._validity)
self.value_changed.connect(self.validate_form)
self._connect_to_theme_change()
def set_pretty_display_theme(self, theme: str = "dark"):
if self._pretty_display:
self.setStyleSheet(styles.pretty_display_theme(theme))
def _connect_to_theme_change(self):
"""Connect to the theme change signal."""
qapp = QApplication.instance()
if hasattr(qapp, "theme_signal"):
qapp.theme_signal.theme_updated.connect(self.set_pretty_display_theme) # type: ignore
def set_schema(self, schema: type[BaseModel]):
self._md_schema = schema
self.populate()
def set_data(self, data: BaseModel):
"""Fill the data for the form.
Args:
data (BaseModel): the data to enter into the form. Must be the same type as the
currently set schema, raises TypeError otherwise."""
if not self._md_schema:
raise ValueError("Schema not set - can't set data")
if not isinstance(data, self._md_schema):
raise TypeError(f"Supplied data {data} not of type {self._md_schema}")
for form_item in self.enumerate_form_widgets():
form_item.widget.setValue(getattr(data, form_item.label.property("_model_field_name")))
def _form_item_specs(self):
return [
FormItemSpec(
name=name, info=info, item_type=info.annotation, pretty_display=self._pretty_display
)
for name, info in self._md_schema.model_fields.items()
]
def update_items_from_schema(self):
self._items = self._form_item_specs()
def populate(self):
self.update_items_from_schema()
super().populate()
def get_form_data(self):
"""Get the entered metadata as a dict."""
return self._dict_from_grid()
def validate_form(self, *_) -> bool:
"""validate the currently entered metadata against the pydantic schema.
If successful, returns on metadata_emitted and returns true.
Otherwise, emits on metadata_cleared and returns false."""
try:
metadata_dict = self.get_form_data()
self._md_schema.model_validate(metadata_dict)
self._validity.set_global_state("success")
self._validity_message.setText("No errors!")
self.metadata_updated.emit(metadata_dict)
return True
except ValidationError as e:
self._validity.set_global_state("emergency")
self._validity_message.setText(str(e))
self.metadata_cleared.emit(None)
return False

View File

@@ -1,612 +0,0 @@
from __future__ import annotations
import typing
from abc import abstractmethod
from decimal import Decimal
from types import GenericAlias, UnionType
from typing import Callable, Final, Iterable, Literal, NamedTuple, OrderedDict, get_args
from bec_lib.logger import bec_logger
from bec_qthemes import material_icon
from pydantic import BaseModel, ConfigDict, Field, field_validator
from pydantic.fields import FieldInfo
from pydantic_core import PydanticUndefined
from qtpy import QtCore
from qtpy.QtCore import QSize, Qt, Signal # type: ignore
from qtpy.QtGui import QFontMetrics
from qtpy.QtWidgets import (
QApplication,
QButtonGroup,
QCheckBox,
QComboBox,
QDoubleSpinBox,
QGridLayout,
QHBoxLayout,
QLabel,
QLayout,
QLineEdit,
QListWidget,
QListWidgetItem,
QPushButton,
QRadioButton,
QSizePolicy,
QSpinBox,
QToolButton,
QVBoxLayout,
QWidget,
)
from bec_widgets.utils.error_popups import SafeSlot
from bec_widgets.utils.widget_io import WidgetIO
from bec_widgets.widgets.editors.dict_backed_table import DictBackedTable
from bec_widgets.widgets.editors.scan_metadata._util import (
clearable_required,
field_default,
field_limits,
field_maxlen,
field_minlen,
field_precision,
)
from bec_widgets.widgets.utility.toggle.toggle import ToggleSwitch
logger = bec_logger.logger
class FormItemSpec(BaseModel):
"""
The specification for an item in a dynamically generated form. Uses a pydantic FieldInfo
to store most annotation info, since one of the main purposes is to store data for
forms genrated from pydantic models, but can also be composed from other sources or by hand.
"""
model_config = ConfigDict(arbitrary_types_allowed=True)
item_type: type | UnionType | GenericAlias
name: str
info: FieldInfo = FieldInfo()
pretty_display: bool = Field(
default=False,
description="Whether to use a pretty display for the widget. Defaults to False. If True, disables the widget, doesn't add a clear button, and adapts the stylesheet for non-editable display.",
)
@field_validator("item_type", mode="before")
@classmethod
def _validate_type(cls, v):
allowed_primitives = [str, int, float, bool]
if isinstance(v, (type, UnionType)):
return v
if isinstance(v, GenericAlias):
if v.__origin__ in [list, dict, set] and all(
arg in allowed_primitives for arg in v.__args__
):
return v
raise ValueError(
f"Generics of type {v} are not supported - only lists, dicts and sets of primitive types {allowed_primitives}"
)
if type(v) is type(Literal[""]): # _LiteralGenericAlias is not exported from typing
arg_types = set(type(arg) for arg in v.__args__)
if len(arg_types) != 1:
raise ValueError("Mixtures of literal types are not supported!")
if (t := arg_types.pop()) in allowed_primitives:
return t
raise ValueError(f"Literals of type {t} are not supported")
class ClearableBoolEntry(QWidget):
stateChanged = Signal()
def __init__(self, parent: QWidget | None = None) -> None:
super().__init__(parent)
self._layout = QHBoxLayout()
self._layout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self._layout)
self._layout.setSizeConstraint(QLayout.SizeConstraint.SetFixedSize)
self._entry = QButtonGroup()
self._true = QRadioButton("true", parent=self)
self._false = QRadioButton("false", parent=self)
for button in [self._true, self._false]:
self._layout.addWidget(button)
self._entry.addButton(button)
button.toggled.connect(self.stateChanged)
def clear(self):
self._entry.setExclusive(False)
self._true.setChecked(False)
self._false.setChecked(False)
self._entry.setExclusive(True)
def isChecked(self) -> bool | None:
if not self._true.isChecked() and not self._false.isChecked():
return None
return self._true.isChecked()
def setChecked(self, value: bool | None):
if value is None:
self.clear()
elif value:
self._true.setChecked(True)
self._false.setChecked(False)
else:
self._true.setChecked(False)
self._false.setChecked(True)
def setToolTip(self, tooltip: str):
self._true.setToolTip(tooltip)
self._false.setToolTip(tooltip)
DynamicFormItemType = str | int | float | Decimal | bool | dict | list | None
class DynamicFormItem(QWidget):
valueChanged = Signal()
def __init__(self, parent: QWidget | None = None, *, spec: FormItemSpec) -> None:
"""
Initializes the form item widget.
Args:
parent (QWidget | None, optional): The parent widget. Defaults to None.
spec (FormItemSpec): The specification for the form item.
"""
super().__init__(parent)
self._spec = spec
self._layout = QHBoxLayout()
self._layout.setContentsMargins(0, 0, 0, 0)
self._layout.setSizeConstraint(QLayout.SizeConstraint.SetMaximumSize)
self._default = field_default(self._spec.info)
self._desc = self._spec.info.description
self.setLayout(self._layout)
self._add_main_widget()
assert isinstance(self._main_widget, QWidget), "Please set a widget in _add_main_widget()" # type: ignore
self._main_widget.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
self.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
if not spec.pretty_display:
if clearable_required(spec.info):
self._add_clear_button()
else:
self._set_pretty_display()
@abstractmethod
def getValue(self) -> DynamicFormItemType: ...
@abstractmethod
def setValue(self, value): ...
@abstractmethod
def _add_main_widget(self) -> None:
"""Add the main data entry widget to self._main_widget and appply any
constraints from the field info"""
def _set_pretty_display(self):
self.setEnabled(False)
if button := getattr(self, "_clear_button", None):
button.setVisible(False)
def _describe(self, pad=" "):
return pad + (self._desc if self._desc else "")
def _add_clear_button(self):
self._clear_button = QToolButton()
self._clear_button.setIcon(
material_icon(icon_name="close", size=(10, 10), convert_to_pixmap=False)
)
self._layout.addWidget(self._clear_button)
# the widget added in _add_main_widget must implement .clear() if value is not required
self._clear_button.setToolTip("Clear value or reset to default.")
self._clear_button.clicked.connect(self._main_widget.clear) # type: ignore
def _value_changed(self, *_, **__):
self.valueChanged.emit()
class StrFormItem(DynamicFormItem):
def __init__(self, parent: QWidget | None = None, *, spec: FormItemSpec) -> None:
super().__init__(parent=parent, spec=spec)
self._main_widget.textChanged.connect(self._value_changed)
def _add_main_widget(self) -> None:
self._main_widget = QLineEdit()
self._layout.addWidget(self._main_widget)
min_length, max_length = (field_minlen(self._spec.info), field_maxlen(self._spec.info))
if max_length:
self._main_widget.setMaxLength(max_length)
self._main_widget.setToolTip(
f"(length min: {min_length} max: {max_length}){self._describe()}"
)
if self._default:
self._main_widget.setText(self._default)
self._add_clear_button()
def getValue(self):
if self._main_widget.text() == "":
return self._default
return self._main_widget.text()
def setValue(self, value: str):
if value is None:
return self._main_widget.setText("")
self._main_widget.setText(str(value))
class IntFormItem(DynamicFormItem):
def __init__(self, parent: QWidget | None = None, *, spec: FormItemSpec) -> None:
super().__init__(parent=parent, spec=spec)
self._main_widget.textChanged.connect(self._value_changed)
def _add_main_widget(self) -> None:
self._main_widget = QSpinBox()
self._layout.addWidget(self._main_widget)
min_, max_ = field_limits(self._spec.info, int)
self._main_widget.setMinimum(min_)
self._main_widget.setMaximum(max_)
self._main_widget.setToolTip(f"(range {min_} to {max_}){self._describe()}")
if self._default is not None:
self._main_widget.setValue(self._default)
self._add_clear_button()
else:
self._main_widget.clear()
def getValue(self):
if self._main_widget.text() == "":
return self._default
return self._main_widget.value()
def setValue(self, value: int):
if value is None:
self._main_widget.clear()
self._main_widget.setValue(value)
class FloatDecimalFormItem(DynamicFormItem):
def __init__(self, parent: QWidget | None = None, *, spec: FormItemSpec) -> None:
super().__init__(parent=parent, spec=spec)
self._main_widget.textChanged.connect(self._value_changed)
def _add_main_widget(self) -> None:
precision = field_precision(self._spec.info)
self._main_widget = QDoubleSpinBox()
self._layout.addWidget(self._main_widget)
min_, max_ = field_limits(self._spec.info, float, precision)
self._main_widget.setMinimum(min_)
self._main_widget.setMaximum(max_)
if precision:
self._main_widget.setDecimals(precision)
minstr = f"{float(min_):.3f}" if abs(min_) <= 1000 else f"{float(min_):.3e}"
maxstr = f"{float(max_):.3f}" if abs(max_) <= 1000 else f"{float(max_):.3e}"
self._main_widget.setToolTip(f"(range {minstr} to {maxstr}){self._describe()}")
if self._default is not None:
self._main_widget.setValue(self._default)
self._add_clear_button()
else:
self._main_widget.clear()
def getValue(self):
if self._main_widget.text() == "":
return self._default
return self._main_widget.value()
def setValue(self, value: float | Decimal):
if value is None:
self._main_widget.clear()
self._main_widget.setValue(float(value))
class BoolFormItem(DynamicFormItem):
def __init__(self, *, parent: QWidget | None = None, spec: FormItemSpec) -> None:
super().__init__(parent=parent, spec=spec)
self._main_widget.stateChanged.connect(self._value_changed)
def _add_main_widget(self) -> None:
if clearable_required(self._spec.info):
self._main_widget = ClearableBoolEntry()
else:
self._main_widget = QCheckBox()
self._layout.addWidget(self._main_widget)
self._main_widget.setToolTip(self._describe(""))
self._main_widget.setChecked(self._default) # type: ignore # if there is no default then it will be ClearableBoolEntry and can be set with None
def getValue(self):
return self._main_widget.isChecked()
def setValue(self, value):
self._main_widget.setChecked(value)
class BoolToggleFormItem(BoolFormItem):
def __init__(self, *, parent: QWidget | None = None, spec: FormItemSpec) -> None:
if spec.info.default is PydanticUndefined:
spec.info.default = False
super().__init__(parent=parent, spec=spec)
def _add_main_widget(self) -> None:
self._main_widget = ToggleSwitch()
self._layout.addWidget(self._main_widget)
self._main_widget.setToolTip(self._describe(""))
if self._default is not None:
self._main_widget.setChecked(self._default)
class DictFormItem(DynamicFormItem):
def __init__(self, *, parent: QWidget | None = None, spec: FormItemSpec) -> None:
super().__init__(parent=parent, spec=spec)
self._main_widget.data_changed.connect(self._value_changed)
if spec.info.default is not PydanticUndefined:
self._main_widget.set_default(spec.info.default)
def _set_pretty_display(self):
self._main_widget.set_button_visibility(False)
super()._set_pretty_display()
def _add_main_widget(self) -> None:
self._main_widget = DictBackedTable(self, [])
self._layout.addWidget(self._main_widget)
self._main_widget.setToolTip(self._describe(""))
def getValue(self):
return self._main_widget.dump_dict()
def setValue(self, value):
self._main_widget.replace_data(value)
class _ItemAndWidgetType(NamedTuple):
# TODO: this should be generic but not supported in 3.10
item: type[int | float | str]
widget: type[QWidget]
default: int | float | str
class ListFormItem(DynamicFormItem):
def __init__(self, *, parent: QWidget | None = None, spec: FormItemSpec) -> None:
if spec.info.annotation is list:
self._types = _ItemAndWidgetType(str, QLineEdit, "")
elif isinstance(spec.info.annotation, GenericAlias):
args = set(typing.get_args(spec.info.annotation))
if args == {str}:
self._types = _ItemAndWidgetType(str, QLineEdit, "")
if args == {int}:
self._types = _ItemAndWidgetType(int, QSpinBox, 0)
if args == {float} or args == {int, float}:
self._types = _ItemAndWidgetType(float, QDoubleSpinBox, 0.0)
else:
self._types = _ItemAndWidgetType(str, QLineEdit, "")
super().__init__(parent=parent, spec=spec)
self.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
self._main_widget: QListWidget
self._data = []
self._min_lines = 2 if spec.pretty_display else 4
self._repop(self._data)
def sizeHint(self):
default = super().sizeHint()
return QSize(default.width(), QFontMetrics(self.font()).height() * 6)
def _add_main_widget(self) -> None:
self._main_widget = QListWidget()
self._layout.addWidget(self._main_widget)
self._layout.setAlignment(Qt.AlignmentFlag.AlignTop)
self._add_buttons()
def _add_buttons(self):
self._button_holder = QWidget()
self._buttons = QVBoxLayout()
self._button_holder.setLayout(self._buttons)
self._layout.addWidget(self._button_holder)
self._add_button = QPushButton("+")
self._add_button.setToolTip("add a new row")
self._remove_button = QPushButton("-")
self._remove_button.setToolTip("delete the focused row (if any)")
self._add_button.clicked.connect(self._add_row)
self._remove_button.clicked.connect(self._delete_row)
self._buttons.addWidget(self._add_button)
self._buttons.addWidget(self._remove_button)
def _set_pretty_display(self):
super()._set_pretty_display()
self._button_holder.setHidden(True)
def _repop(self, data):
self._main_widget.clear()
for val in data:
self._add_list_item(val)
self.scale_to_data()
def _add_data_item(self, val=None):
val = val or self._types.default
self._data.append(val)
self._add_list_item(val)
self._repop(self._data)
def _add_list_item(self, val):
item = QListWidgetItem(self._main_widget)
item.setFlags(item.flags() | QtCore.Qt.ItemIsEditable | QtCore.Qt.ItemIsEditable)
item_widget = self._types.widget(parent=self)
WidgetIO.set_value(item_widget, val)
self._main_widget.setItemWidget(item, item_widget)
self._main_widget.addItem(item)
WidgetIO.connect_widget_change_signal(item_widget, self._update)
return item_widget
def _update(self, _, value, *args):
self._data[self._main_widget.currentRow()] = value
@SafeSlot()
def _add_row(self):
self._add_data_item(self._types.default)
self._repop(self._data)
@SafeSlot()
def _delete_row(self):
if selected := self._main_widget.currentItem():
self._main_widget.removeItemWidget(selected)
row = self._main_widget.currentRow()
self._main_widget.takeItem(row)
self._data.pop(row)
self._repop(self._data)
@SafeSlot()
def clear(self):
self._repop([])
def getValue(self):
return self._data
def setValue(self, value: Iterable):
if set(map(type, value)) | {self._types.item} != {self._types.item}:
raise ValueError(f"This widget only accepts items of type {self._types.item}")
self._data = list(value)
self._repop(self._data)
def _line_height(self):
return QFontMetrics(self._main_widget.font()).height()
def set_max_height_in_lines(self, lines: int):
outer_inc = 1 if self._spec.pretty_display else 3
self._main_widget.setFixedHeight(self._line_height() * max(lines, self._min_lines))
self._button_holder.setFixedHeight(self._line_height() * (max(lines, self._min_lines) + 1))
self.setFixedHeight(self._line_height() * (max(lines, self._min_lines) + outer_inc))
def scale_to_data(self, *_):
self.set_max_height_in_lines(self._main_widget.count() + 1)
class SetFormItem(ListFormItem):
def _add_main_widget(self) -> None:
super()._add_main_widget()
self._add_item_field = self._types.widget()
self._buttons.addWidget(QLabel("Add new:"))
self._buttons.addWidget(self._add_item_field)
self.setSizePolicy(QSizePolicy.Policy.MinimumExpanding, QSizePolicy.Policy.Minimum)
@SafeSlot()
def _add_row(self):
self._add_data_item(WidgetIO.get_value(self._add_item_field))
self._repop(self._data)
def _update(self, _, value, *args):
if value in self._data:
return
return super()._update(_, value, *args)
def _add_data_item(self, val=None):
val = val or self._types.default
if val == self._types.default or val in self._data:
return
self._data.append(val)
self._add_list_item(val)
def _add_list_item(self, val):
item_widget = super()._add_list_item(val)
if isinstance(item_widget, QLineEdit):
item_widget.setReadOnly(True)
return item_widget
def getValue(self):
return set(self._data)
def setValue(self, value: set):
return super().setValue(set(value))
class StrLiteralFormItem(DynamicFormItem):
def _add_main_widget(self) -> None:
self._main_widget = QComboBox()
self._options = get_args(self._spec.info.annotation)
for opt in self._options:
self._main_widget.addItem(opt)
self._layout.addWidget(self._main_widget)
def getValue(self):
return self._main_widget.currentText()
def setValue(self, value: str | None):
if value is None:
self.clear()
for i in range(self._main_widget.count()):
if self._main_widget.itemText(i) == value:
self._main_widget.setCurrentIndex(i)
return
raise ValueError(f"Cannot set value: {value}, options are: {self._options}")
def clear(self):
self._main_widget.setCurrentIndex(-1)
WidgetTypeRegistry = OrderedDict[str, tuple[Callable[[FormItemSpec], bool], type[DynamicFormItem]]]
DEFAULT_WIDGET_TYPES: Final[WidgetTypeRegistry] = OrderedDict() | {
# dict literals are ordered already but TypedForm subclasses may modify coppies of this dict
# and delete/insert keys or change the order
"literal_str": (
lambda spec: type(spec.info.annotation) is type(Literal[""])
and set(type(arg) for arg in get_args(spec.info.annotation)) == {str},
StrLiteralFormItem,
),
"str": (lambda spec: spec.item_type in [str, str | None, None], StrFormItem),
"int": (lambda spec: spec.item_type in [int, int | None], IntFormItem),
"float_decimal": (
lambda spec: spec.item_type in [float, float | None, Decimal, Decimal | None],
FloatDecimalFormItem,
),
"bool": (lambda spec: spec.item_type in [bool, bool | None], BoolFormItem),
"dict": (
lambda spec: spec.item_type in [dict, dict | None]
or (isinstance(spec.item_type, GenericAlias) and spec.item_type.__origin__ is dict),
DictFormItem,
),
"list": (
lambda spec: spec.item_type in [list, list | None]
or (isinstance(spec.item_type, GenericAlias) and spec.item_type.__origin__ is list),
ListFormItem,
),
"set": (
lambda spec: spec.item_type in [set, set | None]
or (isinstance(spec.item_type, GenericAlias) and spec.item_type.__origin__ is set),
SetFormItem,
),
}
def widget_from_type(
spec: FormItemSpec, widget_types: WidgetTypeRegistry | None = None
) -> type[DynamicFormItem]:
widget_types = widget_types or DEFAULT_WIDGET_TYPES
for predicate, widget_type in widget_types.values():
if predicate(spec):
return widget_type
logger.warning(
f"Type {spec.item_type=} / {spec.info.annotation=} is not (yet) supported in dynamic form creation."
)
return StrFormItem
if __name__ == "__main__": # pragma: no cover
class TestModel(BaseModel):
value0: set = Field(set(["a", "b"]))
value1: str | None = Field(None)
value2: bool | None = Field(None)
value3: bool = Field(True)
value4: int = Field(123)
value5: int | None = Field()
value6: list[int] = Field()
value7: list = Field()
app = QApplication([])
w = QWidget()
layout = QGridLayout()
w.setLayout(layout)
items = []
for i, (field_name, info) in enumerate(TestModel.model_fields.items()):
spec = spec = FormItemSpec(item_type=info.annotation, name=field_name, info=info)
layout.addWidget(QLabel(field_name), i, 0)
widg = widget_from_type(spec)(spec=spec)
items.append(widg)
layout.addWidget(widg, i, 1)
items[6].setValue([1, 2, 3, 4])
items[7].setValue(["1", "2", "asdfg", "qwerty"])
w.show()
app.exec()

View File

@@ -1,21 +0,0 @@
import bec_qthemes
def pretty_display_theme(theme: str = "dark"):
palette = bec_qthemes.load_palette(theme)
foreground = palette.text().color().name()
background = palette.base().color().name()
border = palette.shadow().color().name()
accent = palette.accent().color().name()
return f"""
QWidget {{color: {foreground}; background-color: {background}}}
QLabel {{ font-weight: bold; }}
QLineEdit,QLabel,QTreeView {{ border-style: solid; border-width: 2px; border-color: {border} }}
QRadioButton {{ color: {foreground}; }}
QRadioButton::indicator::checked {{ color: {accent}; }}
QCheckBox {{ color: {accent}; }}
"""
if __name__ == "__main__":
print(pretty_display_theme())

View File

@@ -1,84 +0,0 @@
"""
This module provides a utility class for counting and reporting frames per second (FPS) in a PyQtGraph application.
Classes:
FPSCounter: A class that monitors the paint events of a `ViewBox` to calculate and emit FPS values.
Usage:
The `FPSCounter` class can be used to monitor the rendering performance of a `ViewBox` in a PyQtGraph application.
It connects to the `ViewBox`'s paint event and calculates the FPS over a specified interval, emitting the FPS value
at regular intervals.
Example:
from qtpy import QtWidgets, QtCore
import pyqtgraph as pg
from fps_counter import FPSCounter
app = pg.mkQApp("FPS Counter Example")
win = pg.GraphicsLayoutWidget()
win.show()
vb = pg.ViewBox()
plot_item = pg.PlotItem(viewBox=vb)
win.addItem(plot_item)
fps_counter = FPSCounter(vb)
fps_counter.sigFpsUpdate.connect(lambda fps: print(f"FPS: {fps:.2f}"))
sys.exit(app.exec_())
"""
from time import perf_counter
import pyqtgraph as pg
from qtpy import QtCore
class FPSCounter(QtCore.QObject):
"""
A utility class for counting and reporting frames per second (FPS).
This class connects to a `ViewBox`'s paint event to count the number of
frames rendered and calculates the FPS over a specified interval. It emits
a signal with the FPS value at regular intervals.
Attributes:
sigFpsUpdate (QtCore.Signal): Signal emitted with the FPS value.
view_box (pg.ViewBox): The `ViewBox` instance to monitor.
"""
sigFpsUpdate = QtCore.Signal(float)
def __init__(self, view_box):
super().__init__()
self.view_box = view_box
self.view_box.sigPaint.connect(self.increment_count)
self.count = 0
self.last_update = perf_counter()
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.calculate_fps)
self.timer.start(1000)
def increment_count(self):
"""
Increment the frame count when the `ViewBox` is painted.
"""
self.count += 1
def calculate_fps(self):
"""
Calculate the frames per second (FPS) based on the number of frames
"""
now = perf_counter()
elapsed = now - self.last_update
fps = self.count / elapsed if elapsed > 0 else 0.0
self.last_update = now
self.count = 0
self.sigFpsUpdate.emit(fps)
def cleanup(self):
"""
Clean up the FPS counter by stopping the timer and disconnecting the signal.
"""
self.timer.stop()
self.timer.timeout.disconnect(self.calculate_fps)

View File

@@ -1,142 +0,0 @@
import inspect
import os
import re
from typing import NamedTuple
from qtpy.QtCore import QObject
from bec_widgets.utils.name_utils import pascal_to_snake
EXCLUDED_PLUGINS = ["BECConnector", "BECDockArea", "BECDock", "BECFigure"]
_PARENT_ARG_REGEX = r".__init__\(\s*(?:parent\)|parent=parent,?|parent,?)"
_SELF_PARENT_ARG_REGEX = r".__init__\(\s*self,\s*(?:parent\)|parent=parent,?|parent,?)"
SUPER_INIT_REGEX = re.compile(r"super\(\)" + _PARENT_ARG_REGEX, re.MULTILINE)
class PluginFilenames(NamedTuple):
register: str
plugin: str
pyproj: str
def plugin_filenames(name: str) -> PluginFilenames:
return PluginFilenames(f"register_{name}.py", f"{name}_plugin.py", f"{name}.pyproject")
class DesignerPluginInfo:
def __init__(self, plugin_class):
self.plugin_class = plugin_class
self.plugin_name_pascal = plugin_class.__name__
self.plugin_name_snake = pascal_to_snake(self.plugin_name_pascal)
self.widget_import = f"from {plugin_class.__module__} import {self.plugin_name_pascal}"
plugin_module = (
".".join(plugin_class.__module__.split(".")[:-1]) + f".{self.plugin_name_snake}_plugin"
)
self.plugin_import = f"from {plugin_module} import {self.plugin_name_pascal}Plugin"
# first sentence / line of the docstring is used as tooltip
self.plugin_tooltip = (
plugin_class.__doc__.split("\n")[0].strip().replace('"', "'")
if plugin_class.__doc__
else self.plugin_name_pascal
)
self.base_path = os.path.dirname(inspect.getfile(plugin_class))
class DesignerPluginGenerator:
def __init__(self, widget: type):
self._excluded = False
self.widget = widget
self.info = DesignerPluginInfo(widget)
if widget.__name__ in EXCLUDED_PLUGINS:
self._excluded = True
return
self.templates: dict[str, str] = {}
self.template_path = os.path.join(
os.path.dirname(os.path.abspath(__file__)), "plugin_templates"
)
@property
def filenames(self):
return plugin_filenames(self.info.plugin_name_snake)
def run(self, validate=True):
if self._excluded:
print(f"Plugin {self.widget.__name__} is excluded from generation.")
return
if validate:
self._check_class_validity()
self._load_templates()
self._write_templates()
def _check_class_validity(self):
# Check if the widget is a QWidget subclass
if not issubclass(self.widget, QObject):
return
# Check if the widget class has parent as the first argument. This is a strict requirement of Qt!
signature = list(inspect.signature(self.widget.__init__).parameters.values())
if len(signature) == 1 or signature[1].name != "parent":
raise ValueError(
f"Widget class {self.widget.__name__} must have parent as the first argument."
)
base_cls = [val for val in self.widget.__bases__ if issubclass(val, QObject)]
if not base_cls:
raise ValueError(
f"Widget class {self.widget.__name__} must inherit from a QObject subclass."
)
# Check if the widget class calls the super constructor with parent argument
init_source = inspect.getsource(self.widget.__init__)
class_re = re.compile(base_cls[0].__name__ + _SELF_PARENT_ARG_REGEX, re.MULTILINE)
cls_init_found = class_re.search(init_source) is not None
super_self_re = re.compile(
rf"super\({base_cls[0].__name__}, self\)" + _PARENT_ARG_REGEX, re.MULTILINE
)
super_init_found = super_self_re.search(init_source) is not None
if issubclass(self.widget.__bases__[0], QObject) and not super_init_found:
super_init_found = SUPER_INIT_REGEX.search(init_source) is not None
# for the new style classes, we only have one super call. We can therefore check if the
# number of __init__ calls is 2 (the class itself and the super class)
num_inits = re.findall(r"__init__", init_source)
if len(num_inits) == 2 and not super_init_found:
super_init_found = SUPER_INIT_REGEX.search(init_source) is not None
if not cls_init_found and not super_init_found:
raise ValueError(
f"Widget class {self.widget.__name__} must call the super constructor with parent."
)
def _write_file(self, name: str, contents: str):
with open(os.path.join(self.info.base_path, name), "w", encoding="utf-8") as f:
f.write(contents)
def _format(self, name: str):
return self.templates[name].format(**self.info.__dict__)
def _write_templates(self):
self._write_file(self.filenames.register, self._format("register"))
self._write_file(self.filenames.plugin, self._format("plugin"))
pyproj = str({"files": [f"{self.info.plugin_class.__module__.split('.')[-1]}.py"]})
self._write_file(self.filenames.pyproj, pyproj)
def _load_templates(self):
for file in os.listdir(self.template_path):
if not file.endswith(".template"):
continue
with open(os.path.join(self.template_path, file), "r", encoding="utf-8") as f:
self.templates[file.split(".")[0]] = f.read()
if __name__ == "__main__": # pragma: no cover
# from bec_widgets.widgets.bec_queue.bec_queue import BECQueue
from bec_widgets.widgets.utility.spinner import SpinnerWidget
generator = DesignerPluginGenerator(SpinnerWidget)
generator.run(validate=False)

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