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我正在尝试获取将绘图放入 pyqt5 中的 groupbox 的图形。下面是我的代码。如果你运行它，它会将图形放在主窗口中并在其顶部绘制组框的边缘，但我希望它位于组框内（因为我计划在不同的框中制作几个不同的图形。

CENTERX = 80
CENTERY = 0
RADX = 50
RADY = 50
WIDTH = 160
HEIGHT = 120

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QSlider, QVBoxLayout, QHBoxLayout, QGridLayout

class DrawCircles(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(DrawCircles, self).__init__(parent, QtCore.Qt.WindowStaysOnTopHint)
        self.setGeometry(300, 300, WIDTH, HEIGHT)
        # Main Layout
        self.mainLayout = QVBoxLayout(self)
        self.groupGimble = QtWidgets.QGroupBox()
        self.mainLayout.addWidget(self.groupGimble)

    def paintEvent(self, event):
        print(str(event.rect()))
        self.drawCircle(event)

    def drawCircle(self, event):
        paint = QtGui.QPainter()
        paint.begin(self)
        # optional
        paint.setRenderHint(QtGui.QPainter.Antialiasing)
        # make a white drawing background
        paint.setBrush(QtCore.Qt.white)
        paint.drawRect(event.rect())
        
        # draw red circles
        paint.setPen(QtCore.Qt.black)
        paint.setBrush(QtCore.Qt.black)
        center = QtCore.QPoint(CENTERX, CENTERY)
        paint.drawEllipse(center, RADX, RADY)
        paint.end()

app = QtWidgets.QApplication([])
circles = DrawCircles()
circles.show()
app.exec_()

最后，我想我可以将行：更改 paint.begin(self) 为： paint.begin(self.groupGimble) 但之后它没有绘制任何图形。

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