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bec_widgets/bec_widgets/widgets/services/bec_queue/bec_queue.py

263 lines
8.5 KiB
Python

from __future__ import annotations
from bec_lib.endpoints import MessageEndpoints
from bec_qthemes import material_icon
from qtpy.QtCore import Property, Qt, Signal, Slot
from qtpy.QtGui import QColor
from qtpy.QtWidgets import QHeaderView, QLabel, QTableWidget, QTableWidgetItem, QVBoxLayout, QWidget
from bec_widgets.utils.bec_connector import ConnectionConfig
from bec_widgets.utils.bec_widget import BECWidget
from bec_widgets.utils.compact_popup import CompactPopupWidget
from bec_widgets.utils.toolbar import ModularToolBar, SeparatorAction, WidgetAction
from bec_widgets.widgets.control.buttons.button_abort.button_abort import AbortButton
from bec_widgets.widgets.control.buttons.button_reset.button_reset import ResetButton
from bec_widgets.widgets.control.buttons.button_resume.button_resume import ResumeButton
from bec_widgets.widgets.control.buttons.stop_button.stop_button import StopButton
class BECQueue(BECWidget, CompactPopupWidget):
"""
Widget to display the BEC queue.
"""
PLUGIN = True
ICON_NAME = "edit_note"
status_colors = {
"STOPPED": "red",
"PENDING": "orange",
"IDLE": "gray",
"PAUSED": "yellow",
"DEFERRED_PAUSE": "lightyellow",
"RUNNING": "green",
"COMPLETED": "blue",
}
queue_busy = Signal(bool)
def __init__(
self,
parent: QWidget | None = None,
client=None,
config: ConnectionConfig = None,
gui_id: str = None,
refresh_upon_start: bool = True,
**kwargs,
):
super().__init__(
parent=parent, layout=QVBoxLayout, client=client, gui_id=gui_id, config=config, **kwargs
)
self.layout.setSpacing(0)
self.layout.setContentsMargins(0, 0, 0, 0)
# Set up the toolbar
self.set_toolbar()
# Set up the table
self.table = QTableWidget(self)
# self.layout.addWidget(self.table)
self.table.setColumnCount(4)
self.table.setHorizontalHeaderLabels(["Scan Number", "Type", "Status", "Cancel"])
header = self.table.horizontalHeader()
header.setSectionResizeMode(QHeaderView.Stretch)
self.addWidget(self.table)
self.label = "BEC Queue"
self.tooltip = "BEC Queue status"
self.bec_dispatcher.connect_slot(self.update_queue, MessageEndpoints.scan_queue_status())
self.reset_content()
if refresh_upon_start:
self.refresh_queue()
def set_toolbar(self):
"""
Set the toolbar.
"""
widget_label = QLabel("Live Queue")
widget_label.setStyleSheet("font-weight: bold;")
self.toolbar = ModularToolBar(
actions={
"widget_label": WidgetAction(widget=widget_label),
"separator_1": SeparatorAction(),
"resume": WidgetAction(widget=ResumeButton(toolbar=False)),
"stop": WidgetAction(widget=StopButton(toolbar=False)),
"reset": WidgetAction(widget=ResetButton(toolbar=False)),
},
target_widget=self,
)
self.addWidget(self.toolbar)
@Property(bool)
def hide_toolbar(self):
"""Property to hide the BEC Queue toolbar."""
return not self.toolbar.isVisible()
@hide_toolbar.setter
def hide_toolbar(self, hide: bool):
"""
Setters for the hide_toolbar property.
Args:
hide(bool): Whether to hide the toolbar.
"""
self._hide_toolbar(hide)
def _hide_toolbar(self, hide: bool):
"""
Hide the toolbar.
Args:
hide(bool): Whether to hide the toolbar.
"""
self.toolbar.setVisible(not hide)
def refresh_queue(self):
"""
Refresh the queue.
"""
msg = self.client.connector.get(MessageEndpoints.scan_queue_status())
if msg is None:
# msg is None if no scan has been run yet (fresh start)
return
self.update_queue(msg.content, msg.metadata)
@Slot(dict, dict)
def update_queue(self, content, _metadata):
"""
Update the queue table with the latest queue information.
Args:
content (dict): The queue content.
_metadata (dict): The metadata.
"""
# only show the primary queue for now
queue_info = content.get("queue", {}).get("primary", {}).get("info", [])
self.table.setRowCount(len(queue_info))
self.table.clearContents()
if not queue_info:
self.reset_content()
return
for index, item in enumerate(queue_info):
blocks = item.get("request_blocks", [])
scan_types = []
scan_numbers = []
scan_ids = []
status = item.get("status", "")
for request_block in blocks:
scan_type = request_block.get("content", {}).get("scan_type", "")
if scan_type:
scan_types.append(scan_type)
scan_number = request_block.get("scan_number", "")
if scan_number:
scan_numbers.append(str(scan_number))
scan_id = request_block.get("scan_id", "")
if scan_id:
scan_ids.append(scan_id)
if scan_types:
scan_types = ", ".join(scan_types)
if scan_numbers:
scan_numbers = ", ".join(scan_numbers)
if scan_ids:
scan_ids = ", ".join(scan_ids)
self.set_row(index, scan_numbers, scan_types, status, scan_ids)
busy = (
False
if all(item.get("status") in ("STOPPED", "COMPLETED", "IDLE") for item in queue_info)
else True
)
self.set_global_state("warning" if busy else "default")
self.queue_busy.emit(busy)
def format_item(self, content: str, status=False) -> QTableWidgetItem:
"""
Format the content of the table item.
Args:
content (str): The content to be formatted.
Returns:
QTableWidgetItem: The formatted item.
"""
if not content or not isinstance(content, str):
content = ""
item = QTableWidgetItem(content)
item.setTextAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
# item.setFlags(item.flags() & ~Qt.ItemFlag.ItemIsEditable)
if status:
try:
color = self.status_colors.get(content, "black") # Default to black if not found
item.setForeground(QColor(color))
except:
return item
return item
def set_row(self, index: int, scan_number: str, scan_type: str, status: str, scan_id: str):
"""
Set the row of the table.
Args:
index (int): The index of the row.
scan_number (str): The scan number.
scan_type (str): The scan type.
status (str): The status.
"""
abort_button = self._create_abort_button(scan_id)
abort_button.button.clicked.connect(self.delete_selected_row)
self.table.setItem(index, 0, self.format_item(scan_number))
self.table.setItem(index, 1, self.format_item(scan_type))
self.table.setItem(index, 2, self.format_item(status, status=True))
self.table.setCellWidget(index, 3, abort_button)
def _create_abort_button(self, scan_id: str) -> AbortButton:
"""
Create an abort button with styling for BEC Queue widget for certain scan_id.
Args:
scan_id(str): The scan id to abort.
Returns:
AbortButton: The abort button.
"""
abort_button = AbortButton(scan_id=scan_id)
abort_button.button.setText("")
abort_button.button.setIcon(
material_icon("cancel", color="#cc181e", filled=True, convert_to_pixmap=False)
)
abort_button.button.setStyleSheet("background-color: rgba(0,0,0,0) ")
abort_button.button.setFlat(True)
return abort_button
def delete_selected_row(self):
button = self.sender()
row = self.table.indexAt(button.pos()).row()
self.table.removeRow(row)
button.deleteLater()
def reset_content(self):
"""
Reset the content of the table.
"""
self.table.setRowCount(1)
self.set_row(0, "", "", "", "")
if __name__ == "__main__": # pragma: no cover
import sys
from qtpy.QtWidgets import QApplication
app = QApplication(sys.argv)
widget = BECQueue()
widget.show()
sys.exit(app.exec_())