PyQt5 QCalendarWidget – How to drag and drop it anywhere in the window using mouse

In this article we will see how we can drag and drop the calendar in the main window. In order to drag the calendar user has to click on the title bar of the calendar and move the cursor to move the calendar and in order to drop just release the cursor.

Implementation steps :
1. Create a Calendar class that inherits the QCalendarWidget
2. Inside the Calendar class override the mouse press and release event inside the events update the move flag
3. Create a main window class
4. Create a Calendar object
5. Set main window mouse tracking enabled
6. Override the mouse move event
7. Inside the mouse move event get the x, y co-ordinates and change the position of calendar according to it

Below is the implementation

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# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
# QCalendarWidget Class
class Calendar(QCalendarWidget):
  
    # constructor
    def __init__(self, parent = None):
        super(Calendar, self).__init__(parent)
  
    # overriding the mouse press event
    def mousePressEvent(self, QMouseEvent):
  
        # making flag true
        window.move_calendar = True
  
    # overriding the mouse release event
    def mouseReleaseEvent(self, event):
  
        # making flag false
        window.move_calendar = False
  
  
  
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 650, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
        # creating amove flag
        self.move_calendar = False
  
    # method for components
    def UiComponents(self):
  
        # creating a QCalendarWidget object
        # as Calendar class inherits QCalendarWidget
        self.calendar = Calendar(self)
  
        # enabling mouse tracking
        self.calendar.setMouseTracking(True)
        self.setMouseTracking(True)
  
        # setting geometry to the calender
        self.calendar.setGeometry(50, 10, 250, 250)
  
        # setting cursor
        self.calendar.setCursor(Qt.PointingHandCursor)
  
  
    # overriding the mouse move event
    def mouseMoveEvent(self, event):
  
        # getting x, y co-ordinates
        x = event.x()
        y = event.y()
  
        # checking the flag
        if self.move_calendar:
  
            # moving the calendar
            self.calendar.move(x, y)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

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Output :

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