pyqt5 设置窗口圆角及阴影

pyqt5 设置窗口圆角及阴影

效果：

代码如下：
创建一个 圆角边框的类，让后直接继承就行

from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *

class RoundShadow(QWidget):
	"""圆角边框类"""
    def __init__(self, parent=None):
        super(TRoundShadow, self).__init__(parent)
        self.border_width = 8
        # 设置 窗口无边框和背景透明 *必须
        self.setAttribute(Qt.WA_TranslucentBackground)
        self.setWindowFlags(Qt.FramelessWindowHint | Qt.Window)

    def paintEvent(self, event):
    	# 阴影
        path = QPainterPath()
        path.setFillRule(Qt.WindingFill)

        pat = QPainter(self)
        pat.setRenderHint(pat.Antialiasing)
        pat.fillPath(path, QBrush(Qt.white))

        color = QColor(192, 192, 192, 50)

        for i in range(10):
            i_path = QPainterPath()
            i_path.setFillRule(Qt.WindingFill)
            ref = QRectF(10-i, 10-i, self.width()-(10-i)*2, self.height()-(10-i)*2)
            # i_path.addRect(ref)
            i_path.addRoundedRect(ref, self.border_width, self.border_width)
            color.setAlpha(150 - i**0.5*50)
            pat.setPen(color)
            pat.drawPath(i_path)

        # 圆角
        pat2 = QPainter(self)
        pat2.setRenderHint(pat2.Antialiasing)  # 抗锯齿
        pat2.setBrush(Qt.white)
        pat2.setPen(Qt.transparent)

        rect = self.rect()
        rect.setLeft(9)
        rect.setTop(9)
        rect.setWidth(rect.width()-9)
        rect.setHeight(rect.height()-9)
        pat2.drawRoundedRect(rect, 4, 4)


class TestWindow(RoundShadow, QWidget):
	"""测试窗口"""
    def __init__(self, parent=None):
        super(TestWindow, self).__init__(parent)

        self.resize(300, 300)
        

if __name__ == '__main__':
    app = QApplication(sys.argv)
    t = TestWindow()
    # t = RoundImage('./Asset/new_icons/close.png')
    t.show()
    app.exec_()