Example of PyQt5 implementing smooth moving side menu bar effect

#!/usr/bin/env python
# encoding: utf-8
'''
@author: JHC 
@license: None
@contact: JHC000abc@
@file: 
@time: 2022/07/19/ 16:56
@desc:
'''
from  import Qt, QPropertyAnimation, QEasingCurve, QPoint, QPointF
from  import QMouseEvent
from  import QWidget, QApplication

class CDrawer(QWidget):

    LEFT, TOP, RIGHT, BOTTOM = range(4)

    def __init__(self, *args, stretch=1 / 3, direction=0, widget=None, **kwargs):
        super(CDrawer, self).__init__(*args, **kwargs)
        ((
        ) |  |  | )
        (Qt.WA_StyledBackground, True)
        (Qt.WA_TranslucentBackground, True)
        # Enter the animation         = QPropertyAnimation(
            self, duration=500, easingCurve=)
        (b'pos')
        # Leave the animation         = QPropertyAnimation(
            self, duration=500, finished=,
            easingCurve=)
        (b'pos')
        (500)
        (stretch)        #Percentage         = direction      # direction        # Translucent background         = QWidget(
            self, objectName='CDrawer_alphaWidget',
            styleSheet='#CDrawer_alphaWidget{background:rgba(55,55,55,100);}')
        (Qt.WA_TransparentForMouseEvents, True)
        (widget)          # Subcontrol
    def resizeEvent(self, event):
        (())
        super(CDrawer, self).resizeEvent(event)

    def mousePressEvent(self, event):
        pos = ()
        if () >= 0 and () >= 0 and (pos) == None and :
            if not ().contains(pos):
                ()
                return
        super(CDrawer, self).mousePressEvent(event)

    def show(self):
        super(CDrawer, self).show()
        parent = ().window() if () else ()
        if not parent or not :
            return
        # Set the Drawer size to the main window        (())
        geometry = ()
        (geometry)

    def animationIn(self, geometry):
        """Enter the animation
         :param geometry:
         """
        if  == :
            # left drawer            (
                0, 0, int(() * ), ())
            ()
            (QPoint(-(), 0))
            (QPoint(0, 0))
            ()
            ()
        elif  == :
            # upper drawer            (
                0, 0, (), int(() * ))
            ()
            (QPoint(0, -()))
            (QPoint(0, 0))
            ()
            ()
        elif  == :
            # right drawer            width = int(() * )
            (
                () - width, 0, width, ())
            ()
            (QPoint((), 0))
            (
                QPoint(() - (), 0))
            ()
            ()
        elif  == :
            # Drawer below            height = int(() * )
            (
                0, () - height, (), height)
            ()
            (QPoint(0, ()))
            (
                QPoint(0, () - ()))
            ()
            ()

    def animationOut(self):
        """Leave the animation
         """
        ()  # Stop entering the animation        geometry = ()
        if  == :
            # left drawer            (())
            (QPoint(-(), 0))
            ()
        elif  == :
            # upper drawer            (QPoint(0, ()))
            (QPoint(0, -()))
            ()
        elif  == :
            # right drawer            (QPoint((), 0))
            (QPoint((), 0))
            ()
        elif  == :
            # Drawer below            (QPoint(0, ()))
            (QPoint(0, ()))
            ()

    def onAnimOutEnd(self):
        """Leave the animation ends
         """
        # Simulate click outside to close        (self, QMouseEvent(
            , QPointF(-1, -1), , , ))

    def setWidget(self, widget):
        """Setting child controls
         :param widget:
         """
         = widget
        if widget:
            (self)
            (widget)
            (widget)

    def setEasingCurve(self, easingCurve):
        """Set an animation curve
         :param easingCurve:
         """
        (easingCurve)

    def getStretch(self):
        """Get proportion
         """
        return 

    def setStretch(self, stretch):
        """Set the proportion
         :param stretch:
         """
         = max(0.1, min(stretch, 0.9))

    def getDirection(self):
        """Get direction
         """
        return 

    def setDirection(self, direction):
        """Set the direction
         :param direction:
         """
        direction = int(direction)
        if direction < 0 or direction > 3:
            direction = 
         = direction

#!/usr/bin/env python
# encoding: utf-8
'''
@author: JHC 
@license: None
@contact: JHC000abc@
@file: 
@time: 2022/07/19/ 16:53
@desc:
'''
from  import Qt
from  import *
from  import *
from  import *
from CDrawer import CDrawer
import sys
import cgitb
 = (1, None, 5, '')
from  import QApplication


class DrawerWidget(QWidget):

    def __init__(self, *args, **kwargs):
        super(DrawerWidget, self).__init__(*args, **kwargs)
        (Qt.WA_StyledBackground, True)
        ('DrawerWidget{background:white;}')
         = QLineEdit(self)


        layout = QVBoxLayout(self)
        ()
        (QPushButton('button', self,clicked=self._click))
        (QPushButton('button2', self, clicked=self._click2))



    def _click(self):
        if () != "":
            print("The text entered in the box is:{}".format(()))
            ()
        else:
            print("The text not entered in the box is")

    def _click2(self):
        print("Useless")





class Window(QWidget):
    def __init__(self, *args, **kwargs):
        super(Window, self).__init__(*args, **kwargs)
        (480, 960)
         = 0
         = 0

         = 0
         = 0
        # layout = QGridLayout(self)
        # (QPushButton('Sidebar', self, clicked=), 1, 0)
    def mouseMoveEvent(self, event):
        print("-----------------------mouseMoveEvent-----------------------")
        if  == 1:
             = ()
             = ()
             = 1
            if  < 100 :
                ()
        ()


    def mousePressEvent(self, event):
        if  == 1 and  == 1 and () == :
             = ()
             = ()
            print("Press",,)

        else:
            pass
        ()



    def mouseReleaseEvent(self, event):
        if  == 1 and  == 1 and () == :
             = ()
             = ()
            print("Relax", , )
        else:
            pass
        ()

    def enterEvent(self, *args, **kwargs):
        if  == 0:
             = 1
        else:
            pass

    def leaveEvent(self, *args, **kwargs):
        if  == 1:
             = 0
        else:
            pass



    def doOpenLeft(self):
        if not hasattr(self, 'leftDrawer'):
             = CDrawer(self, direction=)
            (DrawerWidget())
        ()

    def paintEvent(self, event):
        super().paintEvent(event)
         = QPainter()
        (self)
        ()
        if  != 0 and  != 0 and  == 1:
            # print(", ",,)
            ()
        else:
            ()
        ()
        ()







if __name__ == '__main__':
    app = QApplication()
    w = Window()
    ()
    (app.exec_())