refactor(color_button_native): color button with OS native dialog separated from the curve tree

bec_widgets/widgets/plots/waveform/settings/curve_settings/curve_tree.py

@@ -31,6 +31,9 @@ from bec_widgets.widgets.control.device_input.device_line_edit.device_line_edit
 )
 from bec_widgets.widgets.dap.dap_combo_box.dap_combo_box import DapComboBox
 from bec_widgets.widgets.plots.waveform.curve import CurveConfig, DeviceSignal
+from bec_widgets.widgets.utility.visual.color_button_native.color_button_native import (
+    ColorButtonNative,
+)
 from bec_widgets.widgets.utility.visual.colormap_widget.colormap_widget import BECColorMapWidget
 
 if TYPE_CHECKING:  # pragma: no cover
@@ -40,49 +43,6 @@ if TYPE_CHECKING:  # pragma: no cover
 logger = bec_logger.logger
 
 
-class ColorButton(QPushButton):
-    """A QPushButton subclass that displays a color.
-
-    The background is set to the given color and the button text is the hex code.
-    The text color is chosen automatically (black if the background is light, white if dark)
-    to guarantee good readability.
-    """
-
-    def __init__(self, color="#000000", parent=None):
-        """Initialize the color button.
-
-        Args:
-            color (str): The initial color in hex format (e.g., '#000000').
-            parent: Optional QWidget parent.
-        """
-        super().__init__(parent)
-        self.set_color(color)
-
-    def set_color(self, color):
-        """Set the button's color and update its appearance.
-
-        Args:
-            color (str or QColor): The new color to assign.
-        """
-        if isinstance(color, QColor):
-            self._color = color.name()
-        else:
-            self._color = color
-        self._update_appearance()
-
-    def color(self):
-        """Return the current color in hex."""
-        return self._color
-
-    def _update_appearance(self):
-        """Update the button style based on the background color's brightness."""
-        c = QColor(self._color)
-        brightness = c.lightnessF()
-        text_color = "#000000" if brightness > 0.5 else "#FFFFFF"
-        self.setStyleSheet(f"background-color: {self._color}; color: {text_color};")
-        self.setText(self._color)
-
-
 class CurveRow(QTreeWidgetItem):
     DELETE_BUTTON_COLOR = "#CC181E"
     """A unified row that can represent either a device or a DAP curve.
@@ -193,7 +153,7 @@ class CurveRow(QTreeWidgetItem):
     def _init_style_controls(self):
         """Create columns 3..6: color button, style combo, width spin, symbol spin."""
         # Color in col 3
-        self.color_button = ColorButton(self.config.color)
+        self.color_button = ColorButtonNative(color=self.config.color)
         self.color_button.clicked.connect(lambda: self._select_color(self.color_button))
         self.tree.setItemWidget(self, 3, self.color_button)
 
@@ -284,6 +244,11 @@ class CurveRow(QTreeWidgetItem):
             self.dap_combo.deleteLater()
             self.dap_combo = None
 
+        if getattr(self, "color_button", None) is not None:
+            self.color_button.close()
+            self.color_button.deleteLater()
+            self.color_button = None
+
         # Remove the item from the tree widget
         index = self.tree.indexOfTopLevelItem(self)
         if index != -1:
@@ -337,8 +302,8 @@ class CurveRow(QTreeWidgetItem):
             self.config.label = f"{parent_conf.label}-{new_dap}"
 
         # Common style fields
-        self.config.color = self.color_button.color()
-        self.config.symbol_color = self.color_button.color()
+        self.config.color = self.color_button.color
+        self.config.symbol_color = self.color_button.color
         self.config.pen_style = self.style_combo.currentText()
         self.config.pen_width = self.width_spin.value()
         self.config.symbol_size = self.symbol_spin.value()

bec_widgets/widgets/utility/visual/color_button_native/color_button_native.py

@@ -0,0 +1,58 @@
+from qtpy.QtGui import QColor
+from qtpy.QtWidgets import QPushButton
+
+from bec_widgets import BECWidget, SafeProperty, SafeSlot
+
+
+class ColorButtonNative(BECWidget, QPushButton):
+    """A QPushButton subclass that displays a color.
+
+    The background is set to the given color and the button text is the hex code.
+    The text color is chosen automatically (black if the background is light, white if dark)
+    to guarantee good readability.
+    """
+
+    RPC = False
+    PLUGIN = True
+    ICON_NAME = "colors"
+
+    def __init__(self, parent=None, color="#000000", **kwargs):
+        """Initialize the color button.
+
+        Args:
+            parent: Optional QWidget parent.
+            color (str): The initial color in hex format (e.g., '#000000').
+        """
+        super().__init__(parent=parent, **kwargs)
+        self.set_color(color)
+
+    @SafeSlot()
+    def set_color(self, color):
+        """Set the button's color and update its appearance.
+
+        Args:
+            color (str or QColor): The new color to assign.
+        """
+        if isinstance(color, QColor):
+            self._color = color.name()
+        else:
+            self._color = color
+        self._update_appearance()
+
+    @SafeProperty("QColor")
+    def color(self):
+        """Return the current color in hex."""
+        return self._color
+
+    @color.setter
+    def color(self, value):
+        """Set the button's color and update its appearance."""
+        self.set_color(value)
+
+    def _update_appearance(self):
+        """Update the button style based on the background color's brightness."""
+        c = QColor(self._color)
+        brightness = c.lightnessF()
+        text_color = "#000000" if brightness > 0.5 else "#FFFFFF"
+        self.setStyleSheet(f"background-color: {self._color}; color: {text_color};")
+        self.setText(self._color)

bec_widgets/widgets/utility/visual/color_button_native/color_button_native.pyproject

@@ -0,0 +1 @@
+{'files': ['color_button_native.py']}

bec_widgets/widgets/utility/visual/color_button_native/color_button_native_plugin.py

@@ -0,0 +1,56 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from qtpy.QtDesigner import QDesignerCustomWidgetInterface
+
+from bec_widgets.utils.bec_designer import designer_material_icon
+from bec_widgets.widgets.utility.visual.color_button_native.color_button_native import (
+    ColorButtonNative,
+)
+
+DOM_XML = """
+<ui language='c++'>
+    <widget class='ColorButtonNative' name='color_button_native'>
+    </widget>
+</ui>
+"""
+
+
+class ColorButtonNativePlugin(QDesignerCustomWidgetInterface):  # pragma: no cover
+    def __init__(self):
+        super().__init__()
+        self._form_editor = None
+
+    def createWidget(self, parent):
+        t = ColorButtonNative(parent)
+        return t
+
+    def domXml(self):
+        return DOM_XML
+
+    def group(self):
+        return "BEC Buttons"
+
+    def icon(self):
+        return designer_material_icon(ColorButtonNative.ICON_NAME)
+
+    def includeFile(self):
+        return "color_button_native"
+
+    def initialize(self, form_editor):
+        self._form_editor = form_editor
+
+    def isContainer(self):
+        return False
+
+    def isInitialized(self):
+        return self._form_editor is not None
+
+    def name(self):
+        return "ColorButtonNative"
+
+    def toolTip(self):
+        return "A QPushButton subclass that displays a color."
+
+    def whatsThis(self):
+        return self.toolTip()

bec_widgets/widgets/utility/visual/color_button_native/register_color_button_native.py

@@ -0,0 +1,17 @@
+def main():  # pragma: no cover
+    from qtpy import PYSIDE6
+
+    if not PYSIDE6:
+        print("PYSIDE6 is not available in the environment. Cannot patch designer.")
+        return
+    from PySide6.QtDesigner import QPyDesignerCustomWidgetCollection
+
+    from bec_widgets.widgets.utility.visual.color_button_native.color_button_native_plugin import (
+        ColorButtonNativePlugin,
+    )
+
+    QPyDesignerCustomWidgetCollection.addCustomWidget(ColorButtonNativePlugin())
+
+
+if __name__ == "__main__":  # pragma: no cover
+    main()