refactor: add button for positioner selection

bec_widgets/widgets/positioner_box/positioner_box.py

@@ -7,16 +7,19 @@ from bec_lib.device import Positioner
 from bec_lib.endpoints import MessageEndpoints
 from bec_lib.logger import bec_logger
 from bec_lib.messages import ScanQueueMessage
-from qtpy.QtCore import Property, Signal, Slot
-from qtpy.QtGui import QDoubleValidator
-from qtpy.QtWidgets import QDoubleSpinBox, QVBoxLayout, QWidget
+from qtpy.QtCore import Property, QSize, Signal, Slot
+from qtpy.QtGui import QDoubleValidator, QIcon
+from qtpy.QtWidgets import QDialog, QDoubleSpinBox, QPushButton, QVBoxLayout, QWidget
 
 from bec_widgets.utils import UILoader
 from bec_widgets.utils.bec_widget import BECWidget
 from bec_widgets.utils.colors import apply_theme
+from bec_widgets.widgets.device_line_edit.device_line_edit import DeviceLineEdit
 
 logger = bec_logger.logger
 
+MODULE_PATH = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
+
 
 class PositionerBox(BECWidget, QWidget):
     """Simple Widget to control a positioner in box form"""
@@ -71,6 +74,36 @@ class PositionerBox(BECWidget, QWidget):
         self.setpoint_validator = QDoubleValidator()
         self.ui.setpoint.setValidator(self.setpoint_validator)
         self.ui.spinner_widget.start()
+        self.ui.tool_button.clicked.connect(self._open_dialog_selection)
+        icon = QIcon()
+        icon.addFile(
+            os.path.join(MODULE_PATH, "assets", "designer_icons", "device_line_edit.png"),
+            size=QSize(16, 16),
+        )
+        self.ui.tool_button.setIcon(icon)
+
+    def _open_dialog_selection(self):
+        """Open dialog window for positioner selection"""
+        dialog = QDialog(self)
+        dialog.setWindowTitle("Positioner Selection")
+        layout = QVBoxLayout()
+        line_edit = DeviceLineEdit(self, client=self.client, device_filter="Positioner")
+        line_edit.textChanged.connect(self._positioner_changed)
+        layout.addWidget(line_edit)
+        close_button = QPushButton("Close")
+        close_button.clicked.connect(dialog.accept)
+        layout.addWidget(close_button)
+        dialog.setLayout(layout)
+        dialog.exec()
+
+    @Slot(str)
+    def _positioner_changed(self, positioner_name: str):
+        """Changed input in combobox.
+
+        Args:
+            positioner_name (str): name of the positioner
+        """
+        self.set_positioner(positioner_name)
 
     def init_device(self):
         """Init the device view and readback"""
@@ -267,7 +300,7 @@ if __name__ == "__main__":  # pragma: no cover
     from qtpy.QtWidgets import QApplication
 
     app = QApplication(sys.argv)
-    apply_theme("light")
+    apply_theme("dark")
     widget = PositionerBox(device="bpm4i")
 
     widget.show()

bec_widgets/widgets/positioner_box/positioner_box.ui

@@ -78,6 +78,9 @@
         <property name="enabled">
          <bool>false</bool>
         </property>
+        <property name="alignment">
+         <set>Qt::AlignmentFlag::AlignCenter</set>
+        </property>
        </widget>
       </item>
       <item row="3" column="0">
@@ -125,6 +128,13 @@
        <layout class="QVBoxLayout" name="verticalLayout_2">
         <item>
          <layout class="QHBoxLayout" name="horizontalLayout">
+          <item>
+           <widget class="QToolButton" name="tool_button">
+            <property name="text">
+             <string>...</string>
+            </property>
+           </widget>
+          </item>
           <item>
            <spacer name="horizontalSpacer">
             <property name="orientation">

bec_widgets/widgets/positioner_box/positioner_box_plugin.py

@@ -1,6 +1,8 @@
 # Copyright (C) 2022 The Qt Company Ltd.
 # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
+import os
+
 from qtpy.QtDesigner import QDesignerCustomWidgetInterface
 from qtpy.QtGui import QIcon
 
@@ -12,6 +14,7 @@ DOM_XML = """
     </widget>
 </ui>
 """
+MODULE_PATH = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
 
 
 class PositionerBoxPlugin(QDesignerCustomWidgetInterface):  # pragma: no cover
@@ -27,10 +30,11 @@ class PositionerBoxPlugin(QDesignerCustomWidgetInterface):  # pragma: no cover
         return DOM_XML
 
     def group(self):
-        return ""
+        return "Device Control"
 
     def icon(self):
-        return QIcon()
+        icon_path = os.path.join(MODULE_PATH, "assets", "designer_icons", "positioner_box.png")
+        return QIcon(icon_path)
 
     def includeFile(self):
         return "positioner_box"