Пример #1
0
def qwtDrawBackground(painter, canvas):
    painter.save()
    borderClip = canvas.borderPath(canvas.rect())
    if not borderClip.isEmpty():
        painter.setClipPath(borderClip, Qt.IntersectClip)
    brush = canvas.palette().brush(canvas.backgroundRole())
    if brush.style() == Qt.TexturePattern:
        pm = QPixmap(canvas.size())
        QwtPainter.fillPixmap(canvas, pm)
        painter.drawPixmap(0, 0, pm)
    elif brush.gradient():
        rects = []
        if brush.gradient().coordinateMode() == QGradient.ObjectBoundingMode:
            rects += [canvas.rect()]
        else:
            rects += [painter.clipRegion().rects()]
        useRaster = False
        if painter.paintEngine().type() == QPaintEngine.X11:
            useRaster = True
        if useRaster:
            format_ = QImage.Format_RGB32
            stops = brush.gradient().stops()
            for stop in stops:
                if stop.second.alpha() != 255:
                    format_ = QImage.Format_ARGB32
                    break
            image = QImage(canvas.size(), format_)
            p = QPainter(image)
            p.setPen(Qt.NoPen)
            p.setBrush(brush)
            p.drawRects(_rects_conv_PyQt5(rects))
            p.end()
            painter.drawImage(0, 0, image)
        else:
            painter.setPen(Qt.NoPen)
            painter.setBrush(brush)
            painter.drawRects(_rects_conv_PyQt5(rects))
    else:
        painter.setPen(Qt.NoPen)
        painter.setBrush(brush)
        painter.drawRects(_rects_conv_PyQt5(painter.clipRegion().rects()))

    painter.restore()
Пример #2
0
def qwtDrawBackground(painter, canvas):
    painter.save()
    borderClip = canvas.borderPath(canvas.rect())
    if not borderClip.isEmpty():
        painter.setClipPath(borderClip, Qt.IntersectClip)
    brush = canvas.palette().brush(canvas.backgroundRole())
    if brush.style() == Qt.TexturePattern:
        pm = QPixmap(canvas.size())
        QwtPainter.fillPixmap(canvas, pm)
        painter.drawPixmap(0, 0, pm)
    elif brush.gradient():
        rects = []
        if brush.gradient().coordinateMode() == QGradient.ObjectBoundingMode:
            rects += [canvas.rect()]
        else:
            rects += [painter.clipRegion().rects()]
        useRaster = False
        if painter.paintEngine().type() == QPaintEngine.X11:
            useRaster = True
        if useRaster:
            format_ = QImage.Format_RGB32
            stops = brush.gradient().stops()
            for stop in stops:
                if stop.second.alpha() != 255:
                    format_ = QImage.Format_ARGB32
                    break
            image = QImage(canvas.size(), format_)
            p = QPainter(image)
            p.setPen(Qt.NoPen)
            p.setBrush(brush)
            p.drawRects(_rects_conv_PyQt5(rects))
            p.end()
            painter.drawImage(0, 0, image)
        else:
            painter.setPen(Qt.NoPen)
            painter.setBrush(brush)
            painter.drawRects(_rects_conv_PyQt5(rects))
    else:
        painter.setPen(Qt.NoPen)
        painter.setBrush(brush)
        painter.drawRects(_rects_conv_PyQt5(painter.clipRegion().rects()))

    painter.restore()