fix: logpanel error cycle

Automatically generated by python-semantic-release

.github/workflows/end2end-conda.yml

@@ -12,6 +12,7 @@ jobs:
       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"
@@ -39,10 +40,11 @@ jobs:
           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
-          pip install -e .[dev,pyside6]
+          pip install -e ./ophyd_devices -e .[dev,pyside6] -e ./bec_testing_plugin
           pytest -v --files-path ./ --start-servers --random-order  ./tests/end-2-end

CHANGELOG.md

@@ -1,6 +1,65 @@
 # CHANGELOG
 
 
+## v2.8.2 (2025-05-27)
+
+### Bug Fixes
+
+- **image_roi**: Rois are invertible by default, fixes resizing bug when adding from ROI manager
+  ([`0bdd4e8`](https://github.com/bec-project/bec_widgets/commit/0bdd4e86a24a61b5365febcb2fcbde0532117053))
+
+
+## v2.8.1 (2025-05-27)
+
+### Bug Fixes
+
+- **launch_window**: Font and tile size fixed across OSs, closes #607
+  ([`ada0977`](https://github.com/bec-project/bec_widgets/commit/ada0977a1b50e750c2e2c848ce9b80895e0e524a))
+
+
+## v2.8.0 (2025-05-26)
+
+### Bug Fixes
+
+- **ImageProcessing**: Use target widget as parent
+  ([`d8547c7`](https://github.com/bec-project/bec_widgets/commit/d8547c7a56cea72dd41a2020c47adfd93969139f))
+
+### Features
+
+- **plot_base**: Add option to specify units
+  ([`3484507`](https://github.com/bec-project/bec_widgets/commit/3484507c75500dc1b1a53853ff01937ad9ad8913))
+
+### Refactoring
+
+- **server**: Minor cleanup of imports
+  ([`8abebb7`](https://github.com/bec-project/bec_widgets/commit/8abebb72862c44d32a24f5e692319dec7a0891bf))
+
+- **toolbar**: Add warning if no parent is provided as it may lead to segfaults
+  ([`4f69f5d`](https://github.com/bec-project/bec_widgets/commit/4f69f5da45420d92fd985801a8920ecf10166554))
+
+
+## v2.7.1 (2025-05-26)
+
+### Bug Fixes
+
+- **signal-combobox**: Bug fix in signal combobox that crashed upon switching from device to signal
+  input
+  ([`1a4eb1d`](https://github.com/bec-project/bec_widgets/commit/1a4eb1db67ff6cfc45ce91cd264ae2818a57230a))
+
+- **signal-line-edit**: Fix signal_line_edit validity check; closes #610
+  ([`ec740d3`](https://github.com/bec-project/bec_widgets/commit/ec740d31fdea561f1ed9274ea79b7be3b6ecba11))
+
+### Refactoring
+
+- Add rpc interface to signal_line_edit/combobox; add user access methods
+  ([`a8811c9`](https://github.com/bec-project/bec_widgets/commit/a8811c9d914feacf08f2f1f1aaf16302cd320ba3))
+
+### Testing
+
+- **input-widgets**: Add e2e tests to test widget inputs with demo config of bec.
+  ([`f57950c`](https://github.com/bec-project/bec_widgets/commit/f57950c4e3b0b5eab7bc303eaead89f7e50e2804))
+
+
 ## v2.7.0 (2025-05-26)
 
 ### Bug Fixes

bec_widgets/applications/launch_window.py

@@ -6,7 +6,7 @@ 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 QPainter, QPainterPath, QPixmap
+from qtpy.QtGui import QFontMetrics, QPainter, QPainterPath, QPixmap
 from qtpy.QtWidgets import (
     QApplication,
     QComboBox,
@@ -44,6 +44,7 @@ MODULE_PATH = os.path.dirname(bec_widgets.__file__)
 
 
 class LaunchTile(RoundedFrame):
+    DEFAULT_SIZE = (250, 300)
     open_signal = Signal()
 
     def __init__(
@@ -54,9 +55,15 @@ class LaunchTile(RoundedFrame):
         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 per‑instance 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)
@@ -87,12 +94,26 @@ class LaunchTile(RoundedFrame):
 
         # 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.setWordWrap(True)
         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 y‑offset.
+        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)
@@ -133,6 +154,29 @@ class LaunchTile(RoundedFrame):
         )
         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
@@ -146,6 +190,8 @@ class LaunchWindow(BECMainWindow):
 
         self.app = QApplication.instance()
         self.tiles: dict[str, LaunchTile] = {}
+        # Track the smallest main‑label font size chosen so far
+        self._min_main_label_pt: int | None = None
 
         # Toolbar
         self.dark_mode_button = DarkModeButton(parent=self, toolbar=True)
@@ -196,7 +242,7 @@ class LaunchWindow(BECMainWindow):
         )
 
         # plugin widgets
-        self.available_widgets: dict[str, BECWidget] = get_all_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()
@@ -250,14 +296,34 @@ class LaunchWindow(BECMainWindow):
             main_label=main_label,
             description=description,
             show_selector=show_selector,
+            tile_size=self.TILE_SIZE,
         )
-        tile.setFixedSize(*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(

bec_widgets/cli/client.py

@@ -51,6 +51,8 @@ _Widgets = {
     "RingProgressBar": "RingProgressBar",
     "ScanControl": "ScanControl",
     "ScatterWaveform": "ScatterWaveform",
+    "SignalComboBox": "SignalComboBox",
+    "SignalLineEdit": "SignalLineEdit",
     "StopButton": "StopButton",
     "TextBox": "TextBox",
     "VSCodeEditor": "VSCodeEditor",
@@ -61,7 +63,7 @@ _Widgets = {
 
 
 try:
-    _plugin_widgets = get_all_plugin_widgets()
+    _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)
 
@@ -939,9 +941,22 @@ class DeviceComboBox(RPCBase):
     """Combobox widget for device input with autocomplete for device names."""
 
     @rpc_call
-    def remove(self):
+    def set_device(self, device: "str"):
         """
-        Cleanup the BECConnector
+        Set the device.
+
+        Args:
+            device (str): Default name.
+        """
+
+    @property
+    @rpc_call
+    def devices(self) -> "list[str]":
+        """
+        Get the list of devices for the applied filters.
+
+        Returns:
+            list[str]: List of devices.
         """
 
 
@@ -959,9 +974,32 @@ class DeviceLineEdit(RPCBase):
     """Line edit widget for device input with autocomplete for device names."""
 
     @rpc_call
-    def remove(self):
+    def set_device(self, device: "str"):
         """
-        Cleanup the BECConnector
+        Set the device.
+
+        Args:
+            device (str): Default name.
+        """
+
+    @property
+    @rpc_call
+    def devices(self) -> "list[str]":
+        """
+        Get the list of devices for the applied filters.
+
+        Returns:
+            list[str]: List of devices.
+        """
+
+    @property
+    @rpc_call
+    def _is_valid_input(self) -> bool:
+        """
+        Check if the current value is a valid device name.
+
+        Returns:
+            bool: True if the current value is a valid device name, False otherwise.
         """
 
 
@@ -3347,6 +3385,80 @@ class ScatterWaveform(RPCBase):
         """
 
 
+class SignalComboBox(RPCBase):
+    """Line edit widget for device input with autocomplete for device names."""
+
+    @rpc_call
+    def set_signal(self, signal: str):
+        """
+        Set the signal.
+
+        Args:
+            signal (str): signal name.
+        """
+
+    @rpc_call
+    def set_device(self, device: str | None):
+        """
+        Set the device. If device is not valid, device will be set to None which happens
+
+        Args:
+            device(str): device name.
+        """
+
+    @property
+    @rpc_call
+    def signals(self) -> list[str]:
+        """
+        Get the list of device signals for the applied filters.
+
+        Returns:
+            list[str]: List of device signals.
+        """
+
+
+class SignalLineEdit(RPCBase):
+    """Line edit widget for device input with autocomplete for device names."""
+
+    @property
+    @rpc_call
+    def _is_valid_input(self) -> bool:
+        """
+        Check if the current value is a valid device name.
+
+        Returns:
+            bool: True if the current value is a valid device name, False otherwise.
+        """
+
+    @rpc_call
+    def set_signal(self, signal: str):
+        """
+        Set the signal.
+
+        Args:
+            signal (str): signal name.
+        """
+
+    @rpc_call
+    def set_device(self, device: str | None):
+        """
+        Set the device. If device is not valid, device will be set to None which happens
+
+        Args:
+            device(str): device name.
+        """
+
+    @property
+    @rpc_call
+    def signals(self) -> list[str]:
+        """
+        Get the list of device signals for the applied filters.
+
+        Returns:
+            list[str]: List of device signals.
+        """
+
+
 class StopButton(RPCBase):
     """A button that stops the current scan."""
 

bec_widgets/cli/generate_cli.py

@@ -111,7 +111,7 @@ _Widgets = {
             self.content += """
 
 try:
-    _plugin_widgets = get_all_plugin_widgets()
+    _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)
 

bec_widgets/cli/rpc/rpc_widget_handler.py

@@ -31,10 +31,9 @@ class RPCWidgetHandler:
         Returns:
             None
         """
-        clss = get_custom_classes("bec_widgets")
-        self._widget_classes = get_all_plugin_widgets() | {
-            cls.__name__: cls for cls in clss.widgets if cls.__name__ not in IGNORE_WIDGETS
-        }
+        self._widget_classes = (
+            get_custom_classes("bec_widgets") + get_all_plugin_widgets()
+        ).as_dict(IGNORE_WIDGETS)
 
     def create_widget(self, widget_type, **kwargs) -> BECWidget:
         """

bec_widgets/cli/server.py

@@ -6,7 +6,6 @@ import os
 import signal
 import sys
 from contextlib import redirect_stderr, redirect_stdout
-from typing import cast
 
 from bec_lib.logger import bec_logger
 from bec_lib.service_config import ServiceConfig

bec_widgets/tests/utils.py

@@ -200,7 +200,13 @@ class DMMock:
         self.devices = DeviceContainer()
         self.enabled_devices = [device for device in self.devices if device.enabled]
 
-    def add_devives(self, devices: list):
+    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
 

bec_widgets/utils/bec_plugin_helper.py

@@ -3,12 +3,17 @@ 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_widgets.utils.bec_widget import BECWidget
+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, ...]:
@@ -30,7 +35,12 @@ def _loaded_submodules_from_specs(
         assert isinstance(
             submodule.__loader__, SourceFileLoader
         ), "Module found from FileFinder should have SourceFileLoader!"
-        submodule.__loader__.exec_module(submodule)
+        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
 
 
@@ -41,27 +51,29 @@ def _submodule_by_name(module: ModuleType, name: str):
     return None
 
 
-def _get_widgets_from_module(module: ModuleType) -> dict[str, "type[BECWidget]"]:
-    """Find any BECWidget subclasses in the given module and return them with their names."""
+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
 
-    return dict(
-        inspect.getmembers(
-            module,
-            predicate=lambda item: inspect.isclass(item)
-            and issubclass(item, BECWidget)
-            and item is not BECWidget,
-        )
+    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):
+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.update(_all_widgets_from_all_submods(submod))
+        widgets += _all_widgets_from_all_submods(submod)
     return widgets
 
 
@@ -75,15 +87,16 @@ def get_plugin_client_module() -> ModuleType | None:
     return _submodule_by_name(plugin, "client") if (plugin := user_widget_plugin()) else None
 
 
-def get_all_plugin_widgets() -> dict[str, "type[BECWidget]"]:
+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 {}
+        return BECClassContainer()
 
 
 if __name__ == "__main__":  # pragma: no cover
-    #  print(get_all_plugin_widgets())
+
     client = get_plugin_client_module()
+    print(get_all_plugin_widgets())
     ...

bec_widgets/utils/plugin_utils.py

@@ -4,7 +4,7 @@ import importlib
 import inspect
 import os
 from dataclasses import dataclass
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Iterable
 
 from bec_lib.plugin_helper import _get_available_plugins
 from qtpy.QtWidgets import QGraphicsWidget, QWidget
@@ -90,15 +90,15 @@ class BECClassInfo:
     name: str
     module: str
     file: str
-    obj: type
+    obj: type[BECWidget]
     is_connector: bool = False
     is_widget: bool = False
     is_plugin: bool = False
 
 
 class BECClassContainer:
-    def __init__(self):
-        self._collection: list[BECClassInfo] = []
+    def __init__(self, initial: Iterable[BECClassInfo] = []):
+        self._collection: list[BECClassInfo] = list(initial)
 
     def __repr__(self):
         return str(list(cl.name for cl in self.collection))
@@ -106,6 +106,16 @@ class BECClassContainer:
     def __iter__(self):
         return self._collection.__iter__()
 
+    def __add__(self, other: BECClassContainer):
+        return BECClassContainer((*self, *(c for c in other if c.name not in self.names)))
+
+    def as_dict(self, ignores: list[str] = []) -> dict[str, type[BECWidget]]:
+        """get a dict of {name: Type} for all the entries in the collection.
+
+        Args:
+            ignores(list[str]): a list of class names to exclude from the dictionary."""
+        return {c.name: c.obj for c in self if c.name not in ignores}
+
     def add_class(self, class_info: BECClassInfo):
         """
         Add a class to the collection.
@@ -115,53 +125,44 @@ class BECClassContainer:
         """
         self.collection.append(class_info)
 
+    @property
+    def names(self):
+        """Return a list of class names"""
+        return [c.name for c in self]
+
     @property
     def collection(self):
-        """
-        Get the collection of classes.
-        """
+        """Get the collection of classes."""
         return self._collection
 
     @property
     def connector_classes(self):
-        """
-        Get all connector classes.
-        """
+        """Get all connector classes."""
         return [info.obj for info in self.collection if info.is_connector]
 
     @property
     def top_level_classes(self):
-        """
-        Get all top-level classes.
-        """
+        """Get all top-level classes."""
         return [info.obj for info in self.collection if info.is_plugin]
 
     @property
     def plugins(self):
-        """
-        Get all plugins. These are all classes that are on the top level and are widgets.
-        """
+        """Get all plugins. These are all classes that are on the top level and are widgets."""
         return [info.obj for info in self.collection if info.is_widget and info.is_plugin]
 
     @property
     def widgets(self):
-        """
-        Get all widgets. These are all classes inheriting from BECWidget.
-        """
+        """Get all widgets. These are all classes inheriting from BECWidget."""
         return [info.obj for info in self.collection if info.is_widget]
 
     @property
     def rpc_top_level_classes(self):
-        """
-        Get all top-level classes that are RPC-enabled. These are all classes that users can choose from.
-        """
+        """Get all top-level classes that are RPC-enabled. These are all classes that users can choose from."""
         return [info.obj for info in self.collection if info.is_plugin and info.is_connector]
 
     @property
     def classes(self):
-        """
-        Get all classes.
-        """
+        """Get all classes."""
         return [info.obj for info in self.collection]
 
 
@@ -197,7 +198,7 @@ def get_custom_classes(repo_name: str) -> BECClassContainer:
                 if not hasattr(obj, "__module__") or obj.__module__ != module.__name__:
                     continue
                 if isinstance(obj, type):
-                    class_info = BECClassInfo(name=name, module=module_name, file=path, obj=obj)
+                    class_info = BECClassInfo(name=name, module=module.__name__, file=path, obj=obj)
                     if issubclass(obj, BECConnector):
                         class_info.is_connector = True
                     if issubclass(obj, BECWidget):

bec_widgets/utils/toolbar.py

@@ -7,6 +7,7 @@ from abc import ABC, abstractmethod
 from collections import defaultdict
 from typing import Dict, List, Literal, Tuple
 
+from bec_lib.logger import bec_logger
 from bec_qthemes._icon.material_icons import material_icon
 from qtpy.QtCore import QSize, Qt, QTimer
 from qtpy.QtGui import QAction, QColor, QIcon
@@ -31,6 +32,8 @@ from bec_widgets.widgets.utility.visual.dark_mode_button.dark_mode_button import
 
 MODULE_PATH = os.path.dirname(bec_widgets.__file__)
 
+logger = bec_logger.logger
+
 # Ensure that icons are shown in menus (especially on macOS)
 QApplication.setAttribute(Qt.AA_DontShowIconsInMenus, False)
 
@@ -173,6 +176,10 @@ class MaterialIconAction(ToolBarAction):
             filled=self.filled,
             color=self.color,
         )
+        if parent is None:
+            logger.warning(
+                "MaterialIconAction was created without a parent. Please consider adding one. Using None as parent may cause issues."
+            )
         self.action = QAction(icon=self.icon, text=self.tooltip, parent=parent)
         self.action.setCheckable(self.checkable)
 

bec_widgets/utils/ui_loader.py

@@ -31,12 +31,9 @@ class UILoader:
     def __init__(self, parent=None):
         self.parent = parent
 
-        widgets = get_custom_classes("bec_widgets").classes
-
-        self.custom_widgets = {widget.__name__: widget for widget in widgets}
-
-        plugin_widgets = get_all_plugin_widgets()
-        self.custom_widgets.update(plugin_widgets)
+        self.custom_widgets = (
+            get_custom_classes("bec_widgets") + get_all_plugin_widgets()
+        ).as_dict()
 
         if PYSIDE6:
             self.loader = self.load_ui_pyside6

bec_widgets/widgets/control/device_input/base_classes/device_signal_input_base.py

@@ -79,7 +79,7 @@ class DeviceSignalInputBase(BECWidget):
     @Slot(str)
     def set_device(self, device: str | None):
         """
-        Set the device. If device is not valid, device will be set to None which happpens
+        Set the device. If device is not valid, device will be set to None which happens
 
         Args:
             device(str): device name.
@@ -112,9 +112,12 @@ class DeviceSignalInputBase(BECWidget):
         # See above convention for Signals and ComputedSignals
         if isinstance(device, Signal):
             self._signals = [self._device]
-            FilterIO.set_selection(widget=self, selection=[self._device])
+            self._hinted_signals = [self._device]
+            self._normal_signals = []
+            self._config_signals = []
+            FilterIO.set_selection(widget=self, selection=self._signals)
             return
-        device_info = device._info["signals"]
+        device_info = device._info.get("signals", {})
 
         def _update(kind: Kind):
             return [

bec_widgets/widgets/control/device_input/device_combobox/device_combobox.py

@@ -22,10 +22,14 @@ class DeviceComboBox(DeviceInputBase, QComboBox):
         config: Device input configuration.
         gui_id: GUI ID.
         device_filter: Device filter, name of the device class from BECDeviceFilter and BECReadoutPriority. Check DeviceInputBase for more details.
+        readout_priority_filter: Readout priority filter, name of the readout priority class from BECDeviceFilter and BECReadoutPriority. Check DeviceInputBase for more details.
+        available_devices: List of available devices, if passed, it sets apply filters to false and device/readout priority filters will not be applied.
         default: Default device name.
         arg_name: Argument name, can be used for the other widgets which has to call some other function in bec using correct argument names.
     """
 
+    USER_ACCESS = ["set_device", "devices"]
+
     ICON_NAME = "list_alt"
     PLUGIN = True
 

bec_widgets/widgets/control/device_input/device_line_edit/device_line_edit.py

@@ -24,11 +24,15 @@ class DeviceLineEdit(DeviceInputBase, QLineEdit):
         client: BEC client object.
         config: Device input configuration.
         gui_id: GUI ID.
-        device_filter: Device filter, name of the device class from BECDeviceFilter and ReadoutPriority. Check DeviceInputBase for more details.
+        device_filter: Device filter, name of the device class from BECDeviceFilter and BECReadoutPriority. Check DeviceInputBase for more details.
+        readout_priority_filter: Readout priority filter, name of the readout priority class from BECDeviceFilter and BECReadoutPriority. Check DeviceInputBase for more details.
+        available_devices: List of available devices, if passed, it sets apply filters to false and device/readout priority filters will not be applied.
         default: Default device name.
         arg_name: Argument name, can be used for the other widgets which has to call some other function in bec using correct argument names.
     """
 
+    USER_ACCESS = ["set_device", "devices", "_is_valid_input"]
+
     device_selected = Signal(str)
     device_config_update = Signal()
 
@@ -51,7 +55,7 @@ class DeviceLineEdit(DeviceInputBase, QLineEdit):
         **kwargs,
     ):
         self._callback_id = None
-        self._is_valid_input = False
+        self.__is_valid_input = False
         self._accent_colors = get_accent_colors()
         super().__init__(parent=parent, client=client, gui_id=gui_id, config=config, **kwargs)
         self.completer = QCompleter(self)
@@ -95,6 +99,20 @@ class DeviceLineEdit(DeviceInputBase, QLineEdit):
         self.textChanged.connect(self.check_validity)
         self.check_validity(self.text())
 
+    @property
+    def _is_valid_input(self) -> bool:
+        """
+        Check if the current value is a valid device name.
+
+        Returns:
+            bool: True if the current value is a valid device name, False otherwise.
+        """
+        return self.__is_valid_input
+
+    @_is_valid_input.setter
+    def _is_valid_input(self, value: bool) -> None:
+        self.__is_valid_input = value
+
     def on_device_update(self, action: str, content: dict) -> None:
         """
         Callback for device update events. Triggers the device_update signal.

bec_widgets/widgets/control/device_input/signal_combobox/signal_combobox.py

@@ -23,8 +23,11 @@ class SignalComboBox(DeviceSignalInputBase, QComboBox):
         arg_name: Argument name, can be used for the other widgets which has to call some other function in bec using correct argument names.
     """
 
+    USER_ACCESS = ["set_signal", "set_device", "signals"]
+
     ICON_NAME = "list_alt"
     PLUGIN = True
+    RPC = True
 
     device_signal_changed = Signal(str)
 

bec_widgets/widgets/control/device_input/signal_line_edit/signal_line_edit.py

@@ -24,9 +24,12 @@ class SignalLineEdit(DeviceSignalInputBase, QLineEdit):
         arg_name: Argument name, can be used for the other widgets which has to call some other function in bec using correct argument names.
     """
 
+    USER_ACCESS = ["_is_valid_input", "set_signal", "set_device", "signals"]
+
     device_signal_changed = Signal(str)
 
     PLUGIN = True
+    RPC = True
     ICON_NAME = "vital_signs"
 
     def __init__(
@@ -41,7 +44,7 @@ class SignalLineEdit(DeviceSignalInputBase, QLineEdit):
         arg_name: str | None = None,
         **kwargs,
     ):
-        self._is_valid_input = False
+        self.__is_valid_input = False
         super().__init__(parent=parent, client=client, gui_id=gui_id, config=config, **kwargs)
         self._accent_colors = get_accent_colors()
         self.completer = QCompleter(self)
@@ -65,8 +68,22 @@ class SignalLineEdit(DeviceSignalInputBase, QLineEdit):
             self.set_device(device)
         if default is not None:
             self.set_signal(default)
-        self.textChanged.connect(self.validate_device)
-        self.validate_device(self.text())
+        self.textChanged.connect(self.check_validity)
+        self.check_validity(self.text())
+
+    @property
+    def _is_valid_input(self) -> bool:
+        """
+        Check if the current value is a valid device name.
+
+        Returns:
+            bool: True if the current value is a valid device name, False otherwise.
+        """
+        return self.__is_valid_input
+
+    @_is_valid_input.setter
+    def _is_valid_input(self, value: bool) -> None:
+        self.__is_valid_input = value
 
     def get_current_device(self) -> object:
         """
@@ -131,6 +148,9 @@ if __name__ == "__main__":  # pragma: no cover
     from qtpy.QtWidgets import QApplication, QVBoxLayout, QWidget
 
     from bec_widgets.utils.colors import set_theme
+    from bec_widgets.widgets.control.device_input.device_combobox.device_combobox import (
+        DeviceComboBox,
+    )
 
     app = QApplication([])
     set_theme("dark")
@@ -138,6 +158,12 @@ if __name__ == "__main__":  # pragma: no cover
     widget.setFixedSize(200, 200)
     layout = QVBoxLayout()
     widget.setLayout(layout)
-    layout.addWidget(SignalLineEdit(device="samx"))
+    device_line_edit = DeviceComboBox()
+    device_line_edit.filter_to_positioner = True
+    signal_line_edit = SignalLineEdit()
+    device_line_edit.device_selected.connect(signal_line_edit.set_device)
+
+    layout.addWidget(device_line_edit)
+    layout.addWidget(signal_line_edit)
     widget.show()
     app.exec_()

bec_widgets/widgets/plots/image/toolbar_bundles/processing.py

@@ -11,18 +11,31 @@ class ImageProcessingToolbarBundle(ToolbarBundle):
         super().__init__(bundle_id=bundle_id, actions=[], **kwargs)
         self.target_widget = target_widget
 
-        self.fft = MaterialIconAction(icon_name="fft", tooltip="Toggle FFT", checkable=True)
-        self.log = MaterialIconAction(icon_name="log_scale", tooltip="Toggle Log", checkable=True)
+        self.fft = MaterialIconAction(
+            icon_name="fft", tooltip="Toggle FFT", checkable=True, parent=self.target_widget
+        )
+        self.log = MaterialIconAction(
+            icon_name="log_scale", tooltip="Toggle Log", checkable=True, parent=self.target_widget
+        )
         self.transpose = MaterialIconAction(
-            icon_name="transform", tooltip="Transpose Image", checkable=True
+            icon_name="transform",
+            tooltip="Transpose Image",
+            checkable=True,
+            parent=self.target_widget,
         )
         self.right = MaterialIconAction(
-            icon_name="rotate_right", tooltip="Rotate image clockwise by 90 deg"
+            icon_name="rotate_right",
+            tooltip="Rotate image clockwise by 90 deg",
+            parent=self.target_widget,
         )
         self.left = MaterialIconAction(
-            icon_name="rotate_left", tooltip="Rotate image counterclockwise by 90 deg"
+            icon_name="rotate_left",
+            tooltip="Rotate image counterclockwise by 90 deg",
+            parent=self.target_widget,
+        )
+        self.reset = MaterialIconAction(
+            icon_name="reset_settings", tooltip="Reset Image Settings", parent=self.target_widget
         )
-        self.reset = MaterialIconAction(icon_name="reset_settings", tooltip="Reset Image Settings")
 
         self.add_action("fft", self.fft)
         self.add_action("log", self.log)

bec_widgets/widgets/plots/plot_base.py

@@ -112,8 +112,10 @@ class PlotBase(BECWidget, QWidget):
         self.fps_label = QLabel(alignment=Qt.AlignmentFlag.AlignRight)
         self._user_x_label = ""
         self._x_label_suffix = ""
+        self._x_axis_units = ""
         self._user_y_label = ""
         self._y_label_suffix = ""
+        self._y_axis_units = ""
 
         # Plot Indicator Items
         self.tick_item = BECTickItem(parent=self, plot_item=self.plot_item)
@@ -473,12 +475,31 @@ class PlotBase(BECWidget, QWidget):
         self._x_label_suffix = suffix
         self._apply_x_label()
 
+    @property
+    def x_label_units(self) -> str:
+        """
+        The units of the x-axis.
+        """
+        return self._x_axis_units
+
+    @x_label_units.setter
+    def x_label_units(self, units: str):
+        """
+        The units of the x-axis.
+
+        Args:
+            units(str): The units to set.
+        """
+        self._x_axis_units = units
+        self._apply_x_label()
+
     @property
     def x_label_combined(self) -> str:
         """
-        The final label shown on the axis = user portion + suffix.
+        The final label shown on the axis = user portion + suffix + [units].
         """
-        return self._user_x_label + self._x_label_suffix
+        units = f" [{self._x_axis_units}]" if self._x_axis_units else ""
+        return self._user_x_label + self._x_label_suffix + units
 
     def _apply_x_label(self):
         """
@@ -521,12 +542,31 @@ class PlotBase(BECWidget, QWidget):
         self._y_label_suffix = suffix
         self._apply_y_label()
 
+    @property
+    def y_label_units(self) -> str:
+        """
+        The units of the y-axis.
+        """
+        return self._y_axis_units
+
+    @y_label_units.setter
+    def y_label_units(self, units: str):
+        """
+        The units of the y-axis.
+
+        Args:
+            units(str): The units to set.
+        """
+        self._y_axis_units = units
+        self._apply_y_label()
+
     @property
     def y_label_combined(self) -> str:
         """
-        The final y label shown on the axis = user portion + suffix.
+        The final y label shown on the axis = user portion + suffix + [units].
         """
-        return self._user_y_label + self._y_label_suffix
+        units = f" [{self._y_axis_units}]" if self._y_axis_units else ""
+        return self._user_y_label + self._y_label_suffix + units
 
     def _apply_y_label(self):
         """

bec_widgets/widgets/plots/roi/image_roi.py

@@ -150,7 +150,12 @@ class BaseROI(BECConnector):
         self.parent_plot_item = parent_image.plot_item
         object_name = label.replace("-", "_").replace(" ", "_") if label else None
         super().__init__(
-            object_name=object_name, config=config, gui_id=gui_id, removable=True, **pg_kwargs
+            object_name=object_name,
+            config=config,
+            gui_id=gui_id,
+            removable=True,
+            invertible=True,
+            **pg_kwargs,
         )
 
         self._label = label or "ROI"

bec_widgets/widgets/plots/waveform/waveform.py

@@ -1468,7 +1468,7 @@ class Waveform(PlotBase):
                 x_data = data.get(x_name, {}).get(x_entry, {}).get(access_key, [0])
             else:  # history data
                 x_data = data.get(x_name, {}).get(x_entry, {}).read().get("value", [0])
-            new_suffix = f" [custom: {x_name}-{x_entry}]"
+            new_suffix = f" (custom: {x_name}-{x_entry})"
 
         # 2 User wants timestamp
         if self.x_axis_mode["name"] == "timestamp":
@@ -1477,19 +1477,19 @@ class Waveform(PlotBase):
             else:  # history data
                 timestamps = data[device_name][device_entry].read().get("timestamp", [0])
             x_data = timestamps
-            new_suffix = " [timestamp]"
+            new_suffix = " (timestamp)"
 
         # 3 User wants index
         if self.x_axis_mode["name"] == "index":
             x_data = None
-            new_suffix = " [index]"
+            new_suffix = " (index)"
 
         # 4 Best effort automatic mode
         if self.x_axis_mode["name"] is None or self.x_axis_mode["name"] == "auto":
             # 4.1 If there are async curves, use index
             if len(self._async_curves) > 0:
                 x_data = None
-                new_suffix = " [auto: index]"
+                new_suffix = " (auto: index)"
             # 4.2 If there are sync curves, use the first device from the scan report
             else:
                 try:
@@ -1503,7 +1503,7 @@ class Waveform(PlotBase):
                     x_data = data.get(x_name, {}).get(x_entry, {}).get(access_key, None)
                 else:
                     x_data = data.get(x_name, {}).get(x_entry, {}).read().get("value", None)
-                new_suffix = f" [auto: {x_name}-{x_entry}]"
+                new_suffix = f" (auto: {x_name}-{x_entry})"
         self._update_x_label_suffix(new_suffix)
         return x_data
 

bec_widgets/widgets/utility/logpanel/logpanel.py

@@ -35,6 +35,7 @@ from qtpy.QtWidgets import (
     QWidget,
 )
 
+from bec_widgets.utils.bec_connector import BECConnector
 from bec_widgets.utils.colors import get_theme_palette, set_theme
 from bec_widgets.utils.error_popups import SafeSlot
 from bec_widgets.widgets.editors.text_box.text_box import TextBox
@@ -69,22 +70,22 @@ DEFAULT_LOG_COLORS = {
 }
 
 
-class BecLogsQueue(QObject):
+class BecLogsQueue(BECConnector, QObject):
     """Manages getting logs from BEC Redis and formatting them for display"""
 
+    RPC = False
     new_message = Signal()
 
     def __init__(
         self,
         parent: QObject | None,
-        conn: ConnectorBase,
         maxlen: int = 1000,
         line_formatter: LineFormatter = noop_format,
     ) -> None:
         super().__init__(parent=parent)
         self._timestamp_start: QDateTime | None = None
         self._timestamp_end: QDateTime | None = None
-        self._conn = conn
+        self._conn = self.client.connector
         self._max_length = maxlen
         self._data: deque[LogMessage] = deque([], self._max_length)
         self._display_queue: deque[str] = deque([], self._max_length)
@@ -92,20 +93,27 @@ class BecLogsQueue(QObject):
         self._search_query: Pattern | str | None = None
         self._selected_services: set[str] | None = None
         self._set_formatter_and_update_filter(line_formatter)
-        self._conn.register([MessageEndpoints.log()], None, self._process_incoming_log_msg)
+        # instance attribute still accessible after c++ object is deleted, so the callback can be unregistered
+        self._callback = lambda *args: self._process_incoming_log_msg(*args)
+        self._conn.register([MessageEndpoints.log()], None, self._callback)
 
-    def unsub_from_redis(self):
+    def unsub_from_redis(self, *_):
         """Stop listening to the Redis log stream"""
-        self._conn.unregister([MessageEndpoints.log()], None, self._process_incoming_log_msg)
+        self._conn.unregister([MessageEndpoints.log()], None, self._callback)
 
     def _process_incoming_log_msg(self, msg: dict):
         try:
-            _msg: LogMessage = msg["data"]
+            _msg: LogMessage | None = msg.get("data", None)
+            if _msg is None or not isinstance(_msg, LogMessage):
+                return
             self._data.append(_msg)
             if self.filter is None or self.filter(_msg):
                 self._display_queue.append(self._line_formatter(_msg))
                 self.new_message.emit()
         except Exception as e:
+            if "Internal C++ object (BecLogsQueue) already deleted." in e.args:
+                self._conn.unregister([MessageEndpoints.log()], None, self._callback)
+                return
             logger.warning(f"Error in LogPanel incoming message callback: {e}")
 
     def _set_formatter_and_update_filter(self, line_formatter: LineFormatter = noop_format):
@@ -407,17 +415,15 @@ class LogPanel(TextBox):
         **kwargs,
     ):
         """Initialize the LogPanel widget."""
-        super().__init__(parent=parent, client=client, **kwargs)
+        super().__init__(parent=parent, client=client, config={"text": ""}, **kwargs)
         self._update_colors()
         self._service_status = service_status or BECServiceStatusMixin(self, client=self.client)  # type: ignore
         self._log_manager = BecLogsQueue(
-            parent,
-            self.client.connector,  # type: ignore
-            line_formatter=partial(simple_color_format, colors=self._colors),
+            parent=self, line_formatter=partial(simple_color_format, colors=self._colors)
         )
         self._log_manager.new_message.connect(self._new_messages)
 
-        self.toolbar = LogPanelToolbar(parent=parent)
+        self.toolbar = LogPanelToolbar(parent=self)
         self.toolbar_area = QScrollArea()
         self.toolbar_area.setVerticalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
         self.toolbar_area.setSizeAdjustPolicy(QScrollArea.SizeAdjustPolicy.AdjustToContents)
@@ -529,9 +535,9 @@ class LogPanel(TextBox):
 
     def cleanup(self):
         self._service_status.cleanup()
+        self._log_manager.new_message.disconnect()
+        self._new_messages.disconnect()
         self._log_manager.unsub_from_redis()
-        self._log_manager.new_message.disconnect(self._new_messages)
-        self._new_messages.disconnect(self._on_append)
         super().cleanup()
 
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "bec_widgets"
-version = "2.7.0"
+version = "2.8.2"
 description = "BEC Widgets"
 requires-python = ">=3.10"
 classifiers = [

tests/end-2-end/conftest.py

@@ -5,11 +5,20 @@ import random
 import pytest
 
 from bec_widgets.cli.client_utils import BECGuiClient
+from bec_widgets.widgets.control.scan_control import ScanControl
 
 # pylint: disable=unused-argument
 # pylint: disable=redefined-outer-name
 
 
+@pytest.fixture(scope="function")
+def scan_control(qtbot, bec_client_lib):  # , mock_dev):
+    widget = ScanControl(client=bec_client_lib)
+    qtbot.addWidget(widget)
+    qtbot.waitExposed(widget)
+    yield widget
+
+
 @pytest.fixture(autouse=True)
 def threads_check_fixture(threads_check):
     """

tests/end-2-end/test_scan_control_e2e.py

@@ -3,15 +3,6 @@ import time
 import pytest
 
 from bec_widgets.utils.widget_io import WidgetIO
-from bec_widgets.widgets.control.scan_control import ScanControl
-
-
-@pytest.fixture(scope="function")
-def scan_control(qtbot, bec_client_lib):  # , mock_dev):
-    widget = ScanControl(client=bec_client_lib)
-    qtbot.addWidget(widget)
-    qtbot.waitExposed(widget)
-    yield widget
 
 
 def test_scan_control_populate_scans_e2e(scan_control):
@@ -27,6 +18,7 @@ def test_scan_control_populate_scans_e2e(scan_control):
         "monitor_scan",
         "acquire",
         "line_scan",
+        "custom_testing_scan",
     ]
     items = [
         scan_control.comboBox_scan_selection.itemText(i)

tests/end-2-end/test_with_plugins_e2e.py

@@ -0,0 +1,89 @@
+import time
+
+import pytest
+from bec_testing_plugin.scans.metadata_schema.custom_test_scan_schema import CustomScanSchema
+from qtpy.QtWidgets import QGridLayout
+
+from bec_widgets.utils.widget_io import WidgetIO
+from bec_widgets.widgets.control.scan_control import ScanControl
+
+
+@pytest.fixture(scope="function")
+def scan_control(qtbot, bec_client_lib):  # , mock_dev):
+    widget = ScanControl(client=bec_client_lib)
+    qtbot.addWidget(widget)
+    qtbot.waitExposed(widget)
+    yield widget
+
+
+@pytest.mark.parametrize(
+    ["md", "valid"],
+    [
+        ({"treatment_description": "soaking", "treatment_temperature_k": 123}, True),
+        ({"treatment_description": "soaking", "treatment_temperature_k": "wrong type"}, False),
+        ({"treatment_description": "soaking", "wrong key": 123}, False),
+        (
+            {
+                "sample_name": "test sample",
+                "treatment_description": "soaking",
+                "treatment_temperature_k": 123,
+            },
+            True,
+        ),
+    ],
+)
+def test_scan_metadata_for_custom_scan(
+    scan_control: ScanControl, bec_client_lib, qtbot, md: dict, valid: bool
+):
+    client = bec_client_lib
+    queue = client.queue
+
+    scan_name = "custom_testing_scan"
+    kwargs = {"exp_time": 0.01, "steps": 10, "relative": True, "burst_at_each_point": 1}
+    args = {"device": "samx", "start": -5, "stop": 5}
+
+    scan_control.comboBox_scan_selection.setCurrentText(scan_name)
+
+    # Set kwargs in the UI
+    for kwarg_box in scan_control.kwarg_boxes:
+        for widget in kwarg_box.widgets:
+            for key, value in kwargs.items():
+                if widget.arg_name == key:
+                    WidgetIO.set_value(widget, value)
+                    break
+    # Set args in the UI
+    for widget in scan_control.arg_box.widgets:
+        for key, value in args.items():
+            if widget.arg_name == key:
+                WidgetIO.set_value(widget, value)
+                break
+
+    assert scan_control._metadata_form._md_schema == CustomScanSchema
+    assert not scan_control.button_run_scan.isEnabled()
+
+    def do_test():
+        # Set the metadata
+        grid: QGridLayout = scan_control._metadata_form._form_grid.layout()
+        for i in range(grid.rowCount()):  # type: ignore
+            field_name = grid.itemAtPosition(i, 0).widget().property("_model_field_name")
+            if (value_to_set := md.pop(field_name, None)) is not None:
+                grid.itemAtPosition(i, 1).widget().setValue(value_to_set)
+        # all values should be used
+        assert md == {}
+        assert scan_control.button_run_scan.isEnabled()
+
+        # Run the scan
+        scan_control.button_run_scan.click()
+        time.sleep(2)
+
+        last_scan = queue.scan_storage.storage[-1]
+        assert last_scan.status_message.info["scan_name"] == scan_name
+        assert last_scan.status_message.info["exp_time"] == kwargs["exp_time"]
+        assert last_scan.status_message.info["scan_motors"] == [args["device"]]
+        assert last_scan.status_message.info["num_points"] == kwargs["steps"]
+
+    if valid:
+        do_test()
+    else:
+        with pytest.raises(Exception):
+            do_test()

tests/end-2-end/user_interaction/test_user_interaction_e2e.py

@@ -258,7 +258,10 @@ def test_widgets_e2e_device_combo_box(qtbot, connected_client_gui_obj, random_ge
     dock: client.BECDock
     widget: client.DeviceComboBox
 
-    # No rpc calls to check so far, maybe set_device should be exposed
+    assert "samx" in widget.devices
+    assert "bpm4i" in widget.devices
+
+    widget.set_device("samx")
 
     # Test removing the widget, or leaving it open for the next test
     maybe_remove_dock_area(qtbot, gui=gui, random_int_gen=random_generator_from_seed)
@@ -274,10 +277,64 @@ def test_widgets_e2e_device_line_edit(qtbot, connected_client_gui_obj, random_ge
     dock: client.BECDock
     widget: client.DeviceLineEdit
 
-    # No rpc calls to check so far
-    # Should probably have a set_device method
+    assert widget._is_valid_input is False
+    assert "samx" in widget.devices
+    assert "bpm4i" in widget.devices
 
-    # No rpc calls to check so far, maybe set_device should be exposed
+    widget.set_device("samx")
+    assert widget._is_valid_input is True
+
+    # Test removing the widget, or leaving it open for the next test
+    maybe_remove_dock_area(qtbot, gui=gui, random_int_gen=random_generator_from_seed)
+
+
+@pytest.mark.timeout(PYTEST_TIMEOUT)
+def test_widgets_e2e_signal_line_edit(qtbot, connected_client_gui_obj, random_generator_from_seed):
+    """Test the DeviceSignalLineEdit widget."""
+    gui = connected_client_gui_obj
+    bec = gui._client
+    # Create dock_area, dock, widget
+    dock, widget = create_widget(qtbot, gui, gui.available_widgets.SignalLineEdit)
+    dock: client.BECDock
+    widget: client.SignalLineEdit
+
+    widget.set_device("samx")
+    assert widget._is_valid_input is False
+    assert widget.signals == [
+        "readback",
+        "setpoint",
+        "motor_is_moving",
+        "velocity",
+        "acceleration",
+        "tolerance",
+    ]
+    widget.set_signal("readback")
+    assert widget._is_valid_input is True
+
+    # Test removing the widget, or leaving it open for the next test
+    maybe_remove_dock_area(qtbot, gui=gui, random_int_gen=random_generator_from_seed)
+
+
+@pytest.mark.timeout(PYTEST_TIMEOUT)
+def test_widgets_e2e_signal_combobox(qtbot, connected_client_gui_obj, random_generator_from_seed):
+    """Test the DeviceSignalComboBox widget."""
+    gui = connected_client_gui_obj
+    bec = gui._client
+    # Create dock_area, dock, widget
+    dock, widget = create_widget(qtbot, gui, gui.available_widgets.SignalComboBox)
+    dock: client.BECDock
+    widget: client.SignalComboBox
+
+    widget.set_device("samx")
+    assert widget.signals == [
+        "readback",
+        "setpoint",
+        "motor_is_moving",
+        "velocity",
+        "acceleration",
+        "tolerance",
+    ]
+    widget.set_signal("readback")
 
     # Test removing the widget, or leaving it open for the next test
     maybe_remove_dock_area(qtbot, gui=gui, random_int_gen=random_generator_from_seed)

tests/unit_tests/client_mocks.py

@@ -30,7 +30,7 @@ def mocked_client(bec_dispatcher):
     # Mock the device_manager.devices attribute
     client.connector = connector
     client.device_manager = DMMock()
-    client.device_manager.add_devives(DEVICES)
+    client.device_manager.add_devices(DEVICES)
 
     def mock_mv(*args, relative=False):
         # Extracting motor and value pairs

tests/unit_tests/test_bec_plugin_helper.py

@@ -2,7 +2,9 @@ from importlib.machinery import FileFinder, SourceFileLoader
 from types import ModuleType
 from unittest import mock
 
-from bec_widgets.utils.bec_plugin_helper import BECWidget, _all_widgets_from_all_submods
+from bec_widgets.utils.bec_plugin_helper import _all_widgets_from_all_submods
+from bec_widgets.utils.bec_widget import BECWidget
+from bec_widgets.utils.plugin_utils import BECClassContainer, BECClassInfo
 
 
 def test_all_widgets_from_module_no_submodules():
@@ -39,10 +41,17 @@ def test_all_widgets_from_module_with_submodules():
         mock.patch("importlib.util.module_from_spec", return_value=submodule),
         mock.patch(
             "bec_widgets.utils.bec_plugin_helper._get_widgets_from_module",
-            side_effect=[{"TestWidget": BECWidget}, {"SubWidget": BECWidget}],
+            side_effect=[
+                BECClassContainer(
+                    [BECClassInfo(name="TestWidget", module="", obj=BECWidget, file="")]
+                ),
+                BECClassContainer(
+                    [BECClassInfo(name="SubWidget", module="", obj=BECWidget, file="")]
+                ),
+            ],
         ),
     ):
-        widgets = _all_widgets_from_all_submods(module)
+        widgets = _all_widgets_from_all_submods(module).as_dict()
 
     assert widgets == {"TestWidget": BECWidget, "SubWidget": BECWidget}
 
@@ -54,8 +63,9 @@ def test_all_widgets_from_module_no_widgets():
     module = mock.MagicMock()
 
     with mock.patch(
-        "bec_widgets.utils.bec_plugin_helper._get_widgets_from_module", return_value={}
+        "bec_widgets.utils.bec_plugin_helper._get_widgets_from_module",
+        return_value=BECClassContainer([]),
     ):
-        widgets = _all_widgets_from_all_submods(module)
+        widgets = _all_widgets_from_all_submods(module).as_dict()
 
     assert widgets == {}

tests/unit_tests/test_client_plugin_widgets.py

@@ -7,6 +7,7 @@ from unittest.mock import MagicMock, call, patch
 
 from bec_widgets.cli import client
 from bec_widgets.cli.rpc.rpc_base import RPCBase
+from bec_widgets.utils.plugin_utils import BECClassContainer, BECClassInfo
 
 
 class _TestGlobalPlugin(RPCBase): ...
@@ -47,7 +48,9 @@ mock_client_module_duplicate.DeviceComboBox = _TestDuplicatePlugin
 )
 @patch(
     "bec_widgets.utils.bec_plugin_helper.get_all_plugin_widgets",
-    return_value={"DeviceComboBox": _TestDuplicatePlugin},
+    return_value=BECClassContainer(
+        [BECClassInfo(name="DeviceComboBox", obj=_TestDuplicatePlugin, module="", file="")]
+    ),
 )
 def test_duplicate_plugins_not_allowed(_, bec_logger: MagicMock):
     reload(client)

tests/unit_tests/test_device_signal_input.py

@@ -1,8 +1,10 @@
 from unittest import mock
 
 import pytest
+from bec_lib.device import Signal
 from qtpy.QtWidgets import QWidget
 
+from bec_widgets.tests.utils import FakeDevice
 from bec_widgets.utils.ophyd_kind_util import Kind
 from bec_widgets.widgets.control.device_input.base_classes.device_input_base import BECDeviceFilter
 from bec_widgets.widgets.control.device_input.base_classes.device_signal_input_base import (
@@ -18,6 +20,10 @@ from .client_mocks import mocked_client
 from .conftest import create_widget
 
 
+class FakeSignal(Signal):
+    """Fake signal to test the DeviceSignalInputBase."""
+
+
 class DeviceInputWidget(DeviceSignalInputBase, QWidget):
     """Thin wrapper around DeviceInputBase to make it a QWidget"""
 
@@ -107,6 +113,14 @@ def test_signal_combobox(qtbot, device_signal_combobox):
     assert device_signal_combobox.signals == ["readback", "setpoint", "velocity"]
     qtbot.wait(100)
     assert container == ["samx"]
+    # Set the type of class from the FakeDevice to Signal
+    fake_signal = FakeSignal(name="fake_signal")
+    device_signal_combobox.client.device_manager.add_devices([fake_signal])
+    device_signal_combobox.set_device("fake_signal")
+    assert device_signal_combobox.signals == ["fake_signal"]
+    assert device_signal_combobox._config_signals == []
+    assert device_signal_combobox._normal_signals == []
+    assert device_signal_combobox._hinted_signals == ["fake_signal"]
 
 
 def test_signal_lineeidt(device_signal_line_edit):
@@ -119,3 +133,8 @@ def test_signal_lineeidt(device_signal_line_edit):
     assert device_signal_line_edit.signals == []
     device_signal_line_edit.set_device("samx")
     assert device_signal_line_edit.signals == ["readback", "setpoint", "velocity"]
+    device_signal_line_edit.set_signal("readback")
+    assert device_signal_line_edit.text() == "readback"
+    assert device_signal_line_edit._is_valid_input is True
+    device_signal_line_edit.setText("invalid")
+    assert device_signal_line_edit._is_valid_input is False

tests/unit_tests/test_generate_cli_client.py

@@ -99,7 +99,7 @@ def test_client_generator_with_black_formatting():
 
         
         try:
-            _plugin_widgets = get_all_plugin_widgets()
+            _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)
 

tests/unit_tests/test_launch_window.py

@@ -5,6 +5,7 @@ from unittest import mock
 
 import pytest
 from bec_lib.endpoints import MessageEndpoints
+from qtpy.QtGui import QFontMetrics
 
 import bec_widgets
 from bec_widgets.applications.launch_window import LaunchWindow
@@ -153,3 +154,32 @@ def test_launch_window_closes(bec_launch_window, connections, close_called):
                 mock_hide.assert_called_once()
                 close_event.accept.assert_not_called()
                 close_event.ignore.assert_called_once()
+
+
+def test_main_label_fits_tile_width(bec_launch_window, qtbot):
+    """
+    Every tile’s main label must render in a single line and its text
+    width must not exceed the usable width of the tile.
+    """
+    for name, tile in bec_launch_window.tiles.items():
+        label = tile.main_label
+        qtbot.waitUntil(lambda: label.isVisible())
+        metrics = QFontMetrics(label.font())
+        text_width = metrics.horizontalAdvance(label.text())
+        content_width = (
+            tile.tile_size[0]
+            - tile.layout.contentsMargins().left()
+            - tile.layout.contentsMargins().right()
+        )
+        assert text_width <= content_width, f"{name} main label exceeds tile width"
+        # _fit_label_to_width disables wrapping, so confirm that:
+        assert not label.wordWrap(), f"{name} main label is wrapped"
+
+
+def test_main_label_point_size_uniform(bec_launch_window):
+    """
+    The launcher should unify all main-label font sizes to the smallest
+    needed size, so every tile shares the same point size.
+    """
+    point_sizes = {tile.main_label.font().pointSize() for tile in bec_launch_window.tiles.values()}
+    assert len(point_sizes) == 1, f"Non-uniform main-label point sizes: {point_sizes}"

tests/unit_tests/test_logpanel.py

@@ -4,11 +4,12 @@
 # pylint: disable=protected-access
 
 from collections import deque
-from unittest.mock import MagicMock
+from unittest.mock import MagicMock, patch
 
 import pytest
 from bec_lib.messages import LogMessage
-from qtpy.QtCore import QDateTime, Qt, Signal  # type: ignore
+from bec_lib.redis_connector import StreamMessage
+from qtpy.QtCore import QDateTime
 
 from bec_widgets.widgets.utility.logpanel._util import (
     log_time,
@@ -136,3 +137,31 @@ def test_timestamp_filter(log_panel: LogPanel):
     assert not filter_(TEST_LOG_MESSAGES[0])
     assert filter_(TEST_LOG_MESSAGES[1])
     assert not filter_(TEST_LOG_MESSAGES[2])
+
+
+def test_error_handling_in_callback(log_panel: LogPanel):
+    log_panel._log_manager.new_message = MagicMock()
+
+    cbs = (lambda: log_panel._log_manager._process_incoming_log_msg, {})
+    with patch("bec_widgets.widgets.utility.logpanel.logpanel.logger") as logger:
+        # generally errors should be logged
+        log_panel._log_manager.new_message.emit = MagicMock(
+            side_effect=ValueError("Something went wrong")
+        )
+        log_panel.client.connector._handle_message(
+            msg=StreamMessage(
+                msg={"data": LogMessage(log_type="debug", log_msg="message")}, callbacks=[cbs]
+            )
+        )
+        logger.warning.assert_called_once()
+
+        # this specific error should be ignored and not relogged
+        log_panel._log_manager.new_message.emit = MagicMock(
+            side_effect=RuntimeError("Internal C++ object (BecLogsQueue) already deleted.")
+        )
+        log_panel.client.connector._handle_message(
+            msg=StreamMessage(
+                msg={"data": LogMessage(log_type="debug", log_msg="message")}, callbacks=[cbs]
+            )
+        )
+        logger.warning.assert_called_once()

tests/unit_tests/test_plot_base_next_gen.py

@@ -51,10 +51,11 @@ def test_set_x_label_emits_signal(qtbot, mocked_client):
     """
     pb = create_widget(qtbot, PlotBase, client=mocked_client)
     with qtbot.waitSignal(pb.property_changed, timeout=500) as signal:
-        pb.x_label = "Voltage (V)"
-    assert signal.args == ["x_label", "Voltage (V)"]
-    assert pb.x_label == "Voltage (V)"
-    assert pb.plot_item.getAxis("bottom").labelText == "Voltage (V)"
+        pb.x_label = "Voltage"
+    assert signal.args == ["x_label", "Voltage"]
+    assert pb.x_label == "Voltage"
+    pb.x_label_units = "V"
+    assert pb.plot_item.getAxis("bottom").labelText == "Voltage [V]"
 
 
 def test_set_y_label_emits_signal(qtbot, mocked_client):
@@ -63,10 +64,11 @@ def test_set_y_label_emits_signal(qtbot, mocked_client):
     """
     pb = create_widget(qtbot, PlotBase, client=mocked_client)
     with qtbot.waitSignal(pb.property_changed, timeout=500) as signal:
-        pb.y_label = "Current (A)"
-    assert signal.args == ["y_label", "Current (A)"]
-    assert pb.y_label == "Current (A)"
-    assert pb.plot_item.getAxis("left").labelText == "Current (A)"
+        pb.y_label = "Current"
+    assert signal.args == ["y_label", "Current"]
+    assert pb.y_label == "Current"
+    pb.y_label_units = "A"
+    assert pb.plot_item.getAxis("left").labelText == "Current [A]"
 
 
 def test_set_x_min_max(qtbot, mocked_client):

tests/unit_tests/test_rpc_widget_handler.py

@@ -7,6 +7,7 @@ from bec_widgets.cli import client
 from bec_widgets.cli.rpc.rpc_base import RPCBase
 from bec_widgets.cli.rpc.rpc_widget_handler import RPCWidgetHandler
 from bec_widgets.utils.bec_widget import BECWidget
+from bec_widgets.utils.plugin_utils import BECClassContainer, BECClassInfo
 from bec_widgets.widgets.containers.dock.dock import BECDock
 
 
@@ -21,7 +22,12 @@ class _TestPluginWidget(BECWidget): ...
 
 @patch(
     "bec_widgets.cli.rpc.rpc_widget_handler.get_all_plugin_widgets",
-    return_value={"DeviceComboBox": _TestPluginWidget, "NewPluginWidget": _TestPluginWidget},
+    return_value=BECClassContainer(
+        [
+            BECClassInfo(name="DeviceComboBox", obj=_TestPluginWidget, module="", file=""),
+            BECClassInfo(name="NewPluginWidget", obj=_TestPluginWidget, module="", file=""),
+        ]
+    ),
 )
 def test_duplicate_plugins_not_allowed(_):
     handler = RPCWidgetHandler()

tests/unit_tests/test_scan_control.py

@@ -5,7 +5,7 @@ from unittest.mock import MagicMock, patch
 import pytest
 from bec_lib.endpoints import MessageEndpoints
 from bec_lib.messages import AvailableResourceMessage, ScanQueueHistoryMessage, ScanQueueMessage
-from qtpy.QtCore import QModelIndex, QPoint, Qt
+from qtpy.QtCore import QModelIndex, Qt
 
 from bec_widgets.utils.forms_from_types.items import StrMetadataField
 from bec_widgets.utils.widget_io import WidgetIO