feat: added help button

bec_widgets/examples/motor_movement/motor_controller.ui

@@ -555,6 +555,13 @@
          </property>
         </widget>
        </item>
+       <item>
+        <widget class="QPushButton" name="pushButton_help">
+         <property name="text">
+          <string>Help</string>
+         </property>
+        </widget>
+       </item>
       </layout>
      </widget>
      <widget class="QWidget" name="tab_settings">

bec_widgets/examples/motor_movement/motor_example.py

@@ -10,7 +10,17 @@ from PyQt5.QtCore import QThread, pyqtSlot, QPoint
 from PyQt5.QtCore import pyqtSignal, Qt
 from PyQt5.QtGui import QDoubleValidator
 from PyQt5.QtGui import QKeySequence
-from PyQt5.QtWidgets import QApplication, QWidget, QTableWidget, QFileDialog, QLineEdit
+from PyQt5.QtWidgets import (
+    QApplication,
+    QWidget,
+    QTableWidget,
+    QFileDialog,
+    QLineEdit,
+    QDialog,
+    QVBoxLayout,
+    QLabel,
+    QPushButton,
+)
 from PyQt5.QtWidgets import QShortcut
 from pyqtgraph.Qt import QtWidgets, uic, QtCore
 
@@ -415,6 +425,8 @@ class MotorApp(QWidget):
             lambda: self.load_table_from_csv(self.tableWidget_coordinates, precision=self.precision)
         )
 
+        self.pushButton_help.clicked.connect(self.show_help_dialog)
+
     def init_ui(self) -> None:
         """Setup all ui elements"""
 
@@ -837,6 +849,34 @@ class MotorApp(QWidget):
             value = spinBox1.value()
             spinBox2.setValue(value)
 
+    def show_help_dialog(self):
+        dialog = QDialog(self)
+        dialog.setWindowTitle("Keyboard Shortcuts")
+
+        layout = QVBoxLayout()
+
+        key_bindings = [
+            ("Delete/Backspace", "Delete selected row"),
+            ("Ctrl+A", "Increase step size for X motor"),
+            ("Ctrl+Z", "Decrease step size for X motor"),
+            ("Alt+A", "Increase step size for Y motor"),
+            ("Alt+Z", "Decrease step size for Y motor"),
+            ("Ctrl+G", "Go absolute"),
+            ("Ctrl+D", "Set absolute coordinates"),
+            ("Ctrl+S", "Save Current coordinates"),
+            ("Ctrl+X", "Stop"),
+        ]
+
+        for keys, action in key_bindings:
+            layout.addWidget(QLabel(f"{keys} - {action}"))
+
+        ok_button = QPushButton("OK")
+        ok_button.clicked.connect(dialog.close)
+        layout.addWidget(ok_button)
+
+        dialog.setLayout(layout)
+        dialog.exec_()
+
     @staticmethod
     def param_changed(ui_element):
         ui_element.setStyleSheet("background-color: #FFA700;")