roundedButtonSet.py 文件源码

def paintEvent(self, event):
        painter = QPainter(self)
        painter.setRenderHint(QPainter.Antialiasing)
        self._optionsRects = {}
        w, h = self.width(), self.height()
        metrics = self.fontMetrics()
        hphp = 2 * _hPad

        painter.save()
        path = QPainterPath()
        path.addRoundedRect(.5, .5, w - 1, h - 1, 4, 4)
        painter.fillPath(path, QColor(250, 250, 250))
        x = 0
        linePath = QPainterPath()
        for text in self._options[:-1]:
            x += hphp + metrics.width(text)
            linePath.moveTo(x, 0)
            linePath.lineTo(x, h)
        pen = painter.pen()
        pen.setColor(QColor(218, 218, 218))
        pen.setWidth(0)
        painter.setPen(pen)
        painter.drawPath(path)
        painter.setRenderHint(QPainter.Antialiasing, False)
        painter.drawPath(linePath)
        painter.restore()

        painter.translate(_hPad, _vPad + metrics.ascent())
        left = 0
        for index, text in enumerate(self._options):
            if index in self._selection:
                color = QColor(20, 146, 230)
            else:
                color = QColor(63, 63, 63)
            painter.setPen(color)
            painter.drawText(0, 0, text)
            textWidth = metrics.width(text)
            rectWidth = textWidth + hphp
            rect = (left, 0, rectWidth, h)
            self._optionsRects[index] = rect
            painter.translate(rectWidth, 0)
            left += rectWidth