python之在带有 QT4 的 Python 中使用像素图或图像序列制作动画

我有一个小的 Python 脚本，可以创建一个透明窗口来在屏幕上显示图形，我想为该图形设置动画，但我完全不确定如何或从哪里开始。这是我至少拥有的:

import sys 
from PyQt4 import QtGui, Qt, QtCore 
 
class Transparent(QtGui.QWidget): 
 
    def __init__(self): 
        QtGui.QWidget.__init__(self) 
        self.setAttribute(Qt.Qt.WA_NoSystemBackground) 
        self.setAutoFillBackground(True) 
 
        pixmap = QtGui.QPixmap("test1.gif") 
                pixmap2 = QtGui.QPixmap("test2.gif") 
        width = pixmap.width() 
        height = pixmap.height() 
 
        self.setWindowTitle("Status") 
            self.resize(width, height) 
 
            self.label = QtGui.QLabel(self) 
 
 
        def animateEvent(): 
                    imgnumber = 0 
                    try: 
                        if imgnumber == 1: 
                            self.label.setPixmap(QtGui.QPixmap("test1.gif")) 
                            self.setMask(pixmap.mask()) 
                            imgnumber = 0 
                        else: 
                            self.label.setPixmap(QtGui.QPixmap("test2.gif")) 
                            self.setMask(pixmap2.mask()) 
                            imgnumber = 1 
                    finally: 
                        QtCore.QTimer.singleShot(1000, animateEvent) 
 
                animateEvent() 
 
 
        def paintEvent(self,event): 
        self.setAttribute(Qt.Qt.WA_NoSystemBackground) 
 
if __name__ == "__main__": 
    app = QtGui.QApplication(sys.argv) 
    x = Transparent() 
    x.show() 
    app.exec_() 

感觉它的成分正确，但像素图没有更新。

我尝试了 QMovie，但是窗口中本应透明的区域被黑色填充了。

请您参考如下方法:

从 www.daniweb.com 查看此代码并查看是否可以根据需要修改它:

import sys  
from PyQt4.QtCore import * 
from PyQt4.QtGui import *  
 
class MoviePlayer(QWidget):  
    def __init__(self, gif, parent=None):  
        super(MoviePlayer, self).__init__(parent) 
 
        self.setGeometry(200, 200, 400, 400) 
        self.setWindowTitle("QMovie to show animated gif") 
 
        self.movie_screen = QLabel() 
        self.movie_screen.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)         
        self.movie_screen.setAlignment(Qt.AlignCenter)  
 
        btn_start = QPushButton("Start Animation") 
        btn_start.clicked.connect(self.start)  
 
        btn_stop = QPushButton("Stop Animation") 
        btn_stop.clicked.connect(self.stop)  
 
        main_layout = QVBoxLayout()  
        main_layout.addWidget(self.movie_screen) 
        main_layout.addWidget(btn_start)  
        main_layout.addWidget(btn_stop) 
        self.setLayout(main_layout)  
 
        self.movie = QMovie(gif, QByteArray(), self)  
        self.movie.setCacheMode(QMovie.CacheAll)  
        self.movie.setSpeed(100)  
        self.movie_screen.setMovie(self.movie)  
 
 
    def start(self): 
        """ 
        Start animation 
        """ 
        self.movie.start() 
 
    def stop(self): 
        """ 
        Stop the animation 
        """ 
        self.movie.stop() 
 
 
app = QApplication(sys.argv)  
player = MoviePlayer("/path/to/image.gif")  
player.show()  
sys.exit(app.exec_())