PyQt5 QCalendarWidget - Adding QAction

PyQt5 QCalendarWidget - Adding QAction

In PyQt5, the QCalendarWidget is a widget that allows users to pick dates from a graphical calendar display. If you wish to add a context menu (right-click menu) with QAction items to this widget, you can use the setContextMenuPolicy and customContextMenuRequested methods to set up and display the custom context menu.

Below is a step-by-step guide on how to add a custom context menu with QAction to QCalendarWidget:

import sys from PyQt5.QtWidgets import QApplication, QMainWindow, QCalendarWidget, QMenu, QAction from PyQt5.QtCore import Qt class CalendarDemo(QMainWindow): def __init__(self): super().__init__() # Create a QCalendarWidget self.calendar = QCalendarWidget(self) self.setCentralWidget(self.calendar) # Create a QAction for the context menu self.mark_action = QAction("Mark Date", self) self.mark_action.triggered.connect(self.mark_date) # Set the context menu policy self.calendar.setContextMenuPolicy(Qt.CustomContextMenu) self.calendar.customContextMenuRequested.connect(self.show_context_menu) def show_context_menu(self, position): """Show context menu.""" context_menu = QMenu(self) context_menu.addAction(self.mark_action) context_menu.exec_(self.calendar.mapToGlobal(position)) def mark_date(self): """Handle marking the date.""" date = self.calendar.selectedDate() print(f"Marking the date: {date.toString()}") if __name__ == '__main__': app = QApplication(sys.argv) mainWin = CalendarDemo() mainWin.show() sys.exit(app.exec_())

In the code above:

  • A QAction named "Mark Date" is created.
  • The setContextMenuPolicy method sets the context menu policy to Qt.CustomContextMenu.
  • The customContextMenuRequested signal is connected to the show_context_menu method.
  • The show_context_menu method displays the custom context menu when the user right-clicks on the calendar.
  • The "Mark Date" action, when triggered, calls the mark_date method which just prints the selected date. You can expand upon this to add any functionality you need.

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