PyQt5基础学习-掩膜实现不规则形状图片 1.QWidget.setMask(设置掩膜) 2.QPainter().drawPixmap(绘制图片)

设置掩膜，在画图时，导入掩膜的长和宽

AbnormityWindow.py 

"""
实现不规则窗口(异形窗口)

通过mask实现异形窗口

需要一张透明的png图, 透明部分被扣出, 形成一个非矩形区域
"""

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *

class AbnormityWindow(QWidget):
    def __init__(self):
        super(AbnormityWindow, self).__init__()
        self.setWindowTitle("异形窗口")
        self.pix = QBitmap("../picture/mask.png")
        self.resize(self.pix.size())
        self.setMask(self.pix)

    def paintEvent(self, event):
        painter = QPainter(self)
        painter.drawPixmap(0, 0, self.pix.width(), self.pix.height()
                           , QPixmap("../picture/screen1.jpg"))


if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = AbnormityWindow()
    form.show()
    sys.exit(app.exec_())