pyqt-todolist/test/MenuAnimation.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on 2018年8月22日
@author: Irony
@site: https://pyqt.site , https://github.com/PyQt5
@email: 892768447@qq.com
@file: MenuAnimation
@description:
"""
from PyQt5.QtCore import QPropertyAnimation, QEasingCurve, QRect
from PyQt5.QtWidgets import QWidget, QMenu, QApplication
class Window(QWidget):
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
self.resize(800, 600)
self.initMenu()
self.initAnimation()
def contextMenuEvent(self, event):
pos = event.globalPos()
size = self._contextMenu.sizeHint()
x, y, w, h = pos.x(), pos.y(), size.width(), size.height()
self._animation.stop()
self._animation.setStartValue(QRect(x, y, 0, 0))
self._animation.setEndValue(QRect(x, y, w, h))
self._animation.start()
self._contextMenu.exec_(event.globalPos())
def hello(self):
QApplication.instance().aboutQt()
def initAnimation(self):
# 按钮动画
self._animation = QPropertyAnimation(
self._contextMenu, b'geometry', self,
easingCurve=QEasingCurve.Linear, duration=300)
# easingCurve 修改该变量可以实现不同的效果
def initMenu(self):
self._contextMenu = QMenu(self)
self._contextMenu.addAction('菜单1', self.hello)
self._contextMenu.addAction('菜单2', self.hello)
self._contextMenu.addAction('菜单3', self.hello)
self._contextMenu.addAction('菜单4', self.hello)
self._contextMenu.addAction('菜单5', self.hello)
self._contextMenu.addAction('菜单6', self.hello)
if __name__ == '__main__':
import sys
import cgitb
cgitb.enable(format='text')
app = QApplication(sys.argv)
w = Window()
w.show()
sys.exit(app.exec_())