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Don't render a Shadow if the Shadow overlaps the window

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This commit is contained in:
Martin Gräßlin 2011-04-03 13:05:35 +02:00
parent 7287019050
commit a9ce4aa2af
1 changed files with 8 additions and 0 deletions
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8
shadow.cpp
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@ -127,6 +127,14 @@ void Shadow::buildQuads()
const QRect bottomLeftRect(QPoint(0, 0), m_shadowElements[ShadowElementBottomLeft].size());
const QRect leftRect(QPoint(0, 0), m_shadowElements[ShadowElementLeft].size());
const QRect topLeftRect(QPoint(0, 0), m_shadowElements[ShadowElementTopLeft].size());
if ((leftRect.width() - m_leftOffset > m_topLevel->width()) ||
(rightRect.width() - m_rightOffset > m_topLevel->width()) ||
(topRect.height() - m_topOffset > m_topLevel->height()) ||
(bottomRect.height() - m_bottomOffset > m_topLevel->height())) {
// if our shadow is bigger than the window, we don't render the shadow
m_shadowRegion = QRegion();
return;
}
WindowQuad topLeftQuad(WindowQuadShadowTopLeft);
topLeftQuad[ 0 ] = WindowVertex(-m_leftOffset, -m_topOffset, 0.0, 0.0);
topLeftQuad[ 1 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset, 1.0, 0.0);