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PyQt5之不规则窗口的显示

一、实现可以拖动的不规则窗口

import sysfrom PyQt5 import QtCorefrom PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *class Demo(QWidget):    def __init__(self):        super().__init__()        self.setWindowTitle('实现可以拖动的不规则窗口')        self.mypix()    #显示不规则图片    def mypix(self):        self.mypic = 'python.jpg'        self.pix = QPixmap(self.mypic,'0',Qt.AvoidDither | Qt.ThresholdDither | Qt.ThresholdAlphaDither)        self.resize(self.pix.size())        self.setMask(self.pix.mask())        self.dragPosition = None    def mousePressEvent(self, event):        #当鼠标左键按下时        if event.button() == Qt.LeftButton:            self.m_drag = True            self.m_dragPosition = event.globalPos() - self.pos()            event.accept()            self.setCursor(QCursor(Qt.OpenHandCursor))    def mouseMoveEvent(self, event):        #当鼠标左键移动时        if self.m_drag and Qt.LeftButton:            self.move(QMouseEvent.globalPos() - self.m_dragPosition)    #修改偏移值            QMouseEvent.accept()    def mouseReleaseEvent(self, event):        #当鼠标左键释放时        self.m_drag = False        self.setCursor(QCursor(Qt.ArrowCursor))    def paintEvent(self, event):        painter = QPainter(self)        painter.drawPixmap(0,0,self.pix.width(),self.pix.height(),self.pix)    def mouseDoubleClickEvent(self, event):    	#鼠标双击        self.mypix()if __name__ == "__main__":    app = QApplication(sys.argv)    form = Demo()    form.show()    sys.exit(app.exec_())

二、不规则窗口实现动画效果

import sysfrom PyQt5 import QtCorefrom PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *class Demo(QWidget):    def __init__(self):        super().__init__()        self.setWindowTitle('不规则窗口实现动画效果')        self.i = 1        self.mypix()        self.timer = QTimer()        self.timer.setInterval(500) #设置定时器，每500毫秒更新一次        self.timer.timeout.connect(self.timeChange)        self.timer.start()    #显示不规则图片    def mypix(self):        self.update()        if self.i ==5:            self.i = 1        self.mypic = {
   1:'left.png',2:'up.png',3:'right.png',4:'down.png'}        self.pix = QPixmap(self.mypic[self.i],'0',Qt.AvoidDither | Qt.ThresholdDither | Qt.ThresholdAlphaDither)        self.resize(self.pix.size())        self.setMask(self.pix.mask())        self.dragPosition = None    def mousePressEvent(self, event):        #当鼠标左键按下时        if event.button() == Qt.LeftButton:            self.m_drag = True            self.m_dragPosition = event.globalPos() - self.pos()            event.accept()            self.setCursor(QCursor(Qt.OpenHandCursor))    def mouseMoveEvent(self, event):        #当鼠标左键移动时        if self.m_drag and Qt.LeftButton:            self.move(QMouseEvent.globalPos() - self.m_dragPosition)    #修改偏移值            QMouseEvent.accept()    def mouseReleaseEvent(self, event):        #当鼠标左键释放时        self.m_drag = False        self.setCursor(QCursor(Qt.ArrowCursor))    def paintEvent(self, event):        painter = QPainter(self)        painter.drawPixmap(0,0,self.pix.width(),self.pix.height(),self.pix)    def mouseDoubleClickEvent(self, event):        #鼠标双击        if event.button() == 1:            self.i += 1            self.mypix()    def timeChange(self):        #每500毫秒窗口执行一次更新操作，重绘窗口        self.i += 1        self.mypix()if __name__ == "__main__":    app = QApplication(sys.argv)    form = Demo()    form.show()    sys.exit(app.exec_())

运行之后，会弹出一个窗口，显示不同方向的箭头，每500毫秒改变一次箭头方向。

三、加载GIF动画效果

import sysfrom PyQt5 import QtCorefrom PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *class Demo(QMainWindow):    def __init__(self):        super().__init__()        self.label = QLabel('',self)        self.label.move(50,50)        self.setFixedSize(128,128)        self.setWindowFlags(Qt.Dialog | Qt.CustomizeWindowHint)        self.movie = QMovie('biaoqingbao.gif')        self.label.setMovie(self.movie)        self.movie.start()if __name__ == "__main__":    app = QApplication(sys.argv)    form = Demo()    form.show()    sys.exit(app.exec_())

运行效果如下：

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