simplify general shadow building code
REVIEW: 103236 (cherry picked from commit 4089e5a1842906bb388d18ccb6a7b0437b8699e2)
This commit is contained in:
Thomas Lübking
parent
eedba353d6
commit
065666e35b
1 changed files with 59 additions and 49 deletions
108
shadow.cpp
108
shadow.cpp
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@ -115,80 +115,90 @@ bool Shadow::init(const QVector< long > &data)
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void Shadow::updateShadowRegion()
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{
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const QRect topRect(0, - m_topOffset, m_topLevel->width(), m_topOffset);
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const QRect rightRect(m_topLevel->width(), - m_topOffset, m_rightOffset, m_topLevel->height() + m_topOffset + m_bottomOffset);
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const QRect bottomRect(0, m_topLevel->height(), m_topLevel->width(), m_bottomOffset);
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const QRect leftRect(- m_leftOffset, - m_topOffset, m_leftOffset, m_topLevel->height() + m_topOffset + m_bottomOffset);
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m_shadowRegion = QRegion(topRect).united(rightRect).united(bottomRect).united(leftRect);
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const QRect top(0, - m_topOffset, m_topLevel->width(), m_topOffset);
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const QRect right(m_topLevel->width(), - m_topOffset, m_rightOffset, m_topLevel->height() + m_topOffset + m_bottomOffset);
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const QRect bottom(0, m_topLevel->height(), m_topLevel->width(), m_bottomOffset);
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const QRect left(- m_leftOffset, - m_topOffset, m_leftOffset, m_topLevel->height() + m_topOffset + m_bottomOffset);
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m_shadowRegion = QRegion(top).united(right).united(bottom).united(left);
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}
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void Shadow::buildQuads()
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{
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// prepare window quads
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m_shadowQuads.clear();
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const QRect topRect(QPoint(0, 0), m_shadowElements[ShadowElementTop].size());
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const QRect topRightRect(QPoint(0, 0), m_shadowElements[ShadowElementTopRight].size());
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const QRect rightRect(QPoint(0, 0), m_shadowElements[ShadowElementRight].size());
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const QRect bottomRightRect(QPoint(0, 0), m_shadowElements[ShadowElementBottomRight].size());
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const QRect bottomRect(QPoint(0, 0), m_shadowElements[ShadowElementBottom].size());
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const QRect bottomLeftRect(QPoint(0, 0), m_shadowElements[ShadowElementBottomLeft].size());
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const QRect leftRect(QPoint(0, 0), m_shadowElements[ShadowElementLeft].size());
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const QRect topLeftRect(QPoint(0, 0), m_shadowElements[ShadowElementTopLeft].size());
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if ((leftRect.width() - m_leftOffset > m_topLevel->width()) ||
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(rightRect.width() - m_rightOffset > m_topLevel->width()) ||
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(topRect.height() - m_topOffset > m_topLevel->height()) ||
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(bottomRect.height() - m_bottomOffset > m_topLevel->height())) {
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const QSize top(m_shadowElements[ShadowElementTop].size());
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const QSize topRight(m_shadowElements[ShadowElementTopRight].size());
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const QSize right(m_shadowElements[ShadowElementRight].size());
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const QSize bottomRight(m_shadowElements[ShadowElementBottomRight].size());
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const QSize bottom(m_shadowElements[ShadowElementBottom].size());
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const QSize bottomLeft(m_shadowElements[ShadowElementBottomLeft].size());
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const QSize left(m_shadowElements[ShadowElementLeft].size());
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const QSize topLeft(m_shadowElements[ShadowElementTopLeft].size());
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if ((left.width() - m_leftOffset > m_topLevel->width()) ||
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(right.width() - m_rightOffset > m_topLevel->width()) ||
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(top.height() - m_topOffset > m_topLevel->height()) ||
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(bottom.height() - m_bottomOffset > m_topLevel->height())) {
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// if our shadow is bigger than the window, we don't render the shadow
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m_shadowRegion = QRegion();
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return;
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}
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const QRect outerRect(QPoint(-m_leftOffset, -m_topOffset), QPoint(m_topLevel->width() + m_rightOffset, m_topLevel->height() + m_bottomOffset));
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WindowQuad topLeftQuad(WindowQuadShadowTopLeft);
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topLeftQuad[ 0 ] = WindowVertex(-m_leftOffset, -m_topOffset, 0.0, 0.0);
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topLeftQuad[ 1 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset, 1.0, 0.0);
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topLeftQuad[ 2 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset + topLeftRect.height(), 1.0, 1.0);
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topLeftQuad[ 3 ] = WindowVertex(-m_leftOffset, -m_topOffset + topLeftRect.height(), 0.0, 1.0);
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topLeftQuad[ 0 ] = WindowVertex(outerRect.x(), outerRect.y(), 0.0, 0.0);
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topLeftQuad[ 1 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y(), 1.0, 0.0);
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topLeftQuad[ 2 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y() + topLeft.height(), 1.0, 1.0);
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topLeftQuad[ 3 ] = WindowVertex(outerRect.x(), outerRect.y() + topLeft.height(), 0.0, 1.0);
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m_shadowQuads.append(topLeftQuad);
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WindowQuad topQuad(WindowQuadShadowTop);
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topQuad[ 0 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset, 0.0, 0.0);
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topQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset, 1.0, 0.0);
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topQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset + topRect.height(), 1.0, 1.0);
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topQuad[ 3 ] = WindowVertex(-m_leftOffset + topLeftRect.width(), -m_topOffset + topRect.height(), 0.0, 1.0);
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topQuad[ 0 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y(), 0.0, 0.0);
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topQuad[ 1 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y(), 1.0, 0.0);
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topQuad[ 2 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y() + top.height(), 1.0, 1.0);
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topQuad[ 3 ] = WindowVertex(outerRect.x() + topLeft.width(), outerRect.y() + top.height(), 0.0, 1.0);
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m_shadowQuads.append(topQuad);
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WindowQuad topRightQuad(WindowQuadShadowTopRight);
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topRightQuad[ 0 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset, 0.0, 0.0);
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topRightQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset, -m_topOffset, 1.0, 0.0);
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topRightQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset, -m_topOffset + topRightRect.height(), 1.0, 1.0);
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topRightQuad[ 3 ] = WindowVertex(m_topLevel->width() + m_rightOffset - topRightRect.width(), -m_topOffset + topRightRect.height(), 0.0, 1.0);
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topRightQuad[ 0 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y(), 0.0, 0.0);
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topRightQuad[ 1 ] = WindowVertex(outerRect.right(), outerRect.y(), 1.0, 0.0);
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topRightQuad[ 2 ] = WindowVertex(outerRect.right(), outerRect.y() + topRight.height(), 1.0, 1.0);
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topRightQuad[ 3 ] = WindowVertex(outerRect.right() - topRight.width(), outerRect.y() + topRight.height(), 0.0, 1.0);
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m_shadowQuads.append(topRightQuad);
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WindowQuad rightQuad(WindowQuadShadowRight);
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rightQuad[ 0 ] = WindowVertex(m_topLevel->width() + m_rightOffset - rightRect.width(), -m_topOffset + topRightRect.height(), 0.0, 0.0);
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rightQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset, -m_topOffset + topRightRect.height(), 1.0, 0.0);
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rightQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset, m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 1.0, 1.0);
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rightQuad[ 3 ] = WindowVertex(m_topLevel->width() + m_rightOffset - rightRect.width(), m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 0.0, 1.0);
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rightQuad[ 0 ] = WindowVertex(outerRect.right() - right.width(), outerRect.y() + topRight.height(), 0.0, 0.0);
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rightQuad[ 1 ] = WindowVertex(outerRect.right(), outerRect.y() + topRight.height(), 1.0, 0.0);
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rightQuad[ 2 ] = WindowVertex(outerRect.right(), outerRect.bottom() - bottomRight.height(), 1.0, 1.0);
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rightQuad[ 3 ] = WindowVertex(outerRect.right() - right.width(), outerRect.bottom() - bottomRight.height(), 0.0, 1.0);
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m_shadowQuads.append(rightQuad);
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WindowQuad bottomRightQuad(WindowQuadShadowBottomRight);
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bottomRightQuad[ 0 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 0.0, 0.0);
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bottomRightQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset, m_topLevel->height() + m_bottomOffset - bottomRightRect.height(), 1.0, 0.0);
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bottomRightQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset, m_topLevel->height() + m_bottomOffset, 1.0, 1.0);
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bottomRightQuad[ 3 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset, 0.0, 1.0);
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bottomRightQuad[ 0 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom() - bottomRight.height(), 0.0, 0.0);
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bottomRightQuad[ 1 ] = WindowVertex(outerRect.right(), outerRect.bottom() - bottomRight.height(), 1.0, 0.0);
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bottomRightQuad[ 2 ] = WindowVertex(outerRect.right(), outerRect.bottom(), 1.0, 1.0);
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bottomRightQuad[ 3 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom(), 0.0, 1.0);
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m_shadowQuads.append(bottomRightQuad);
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WindowQuad bottomQuad(WindowQuadShadowBottom);
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bottomQuad[ 0 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset - bottomRect.height(), 0.0, 0.0);
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bottomQuad[ 1 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset - bottomRect.height(), 1.0, 0.0);
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bottomQuad[ 2 ] = WindowVertex(m_topLevel->width() + m_rightOffset - bottomRightRect.width(), m_topLevel->height() + m_bottomOffset, 1.0, 1.0);
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bottomQuad[ 3 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset, 0.0, 1.0);
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bottomQuad[ 0 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom() - bottom.height(), 0.0, 0.0);
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bottomQuad[ 1 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom() - bottom.height(), 1.0, 0.0);
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bottomQuad[ 2 ] = WindowVertex(outerRect.right() - bottomRight.width(), outerRect.bottom(), 1.0, 1.0);
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bottomQuad[ 3 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom(), 0.0, 1.0);
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m_shadowQuads.append(bottomQuad);
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WindowQuad bottomLeftQuad(WindowQuadShadowBottomLeft);
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bottomLeftQuad[ 0 ] = WindowVertex(-m_leftOffset, m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 0.0, 0.0);
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bottomLeftQuad[ 1 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 1.0, 0.0);
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bottomLeftQuad[ 2 ] = WindowVertex(-m_leftOffset + bottomLeftRect.width(), m_topLevel->height() + m_bottomOffset, 1.0, 1.0);
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bottomLeftQuad[ 3 ] = WindowVertex(-m_leftOffset, m_topLevel->height() + m_bottomOffset, 0.0, 1.0);
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bottomLeftQuad[ 0 ] = WindowVertex(outerRect.x(), outerRect.bottom() - bottomLeft.height(), 0.0, 0.0);
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bottomLeftQuad[ 1 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom() - bottomLeft.height(), 1.0, 0.0);
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bottomLeftQuad[ 2 ] = WindowVertex(outerRect.x() + bottomLeft.width(), outerRect.bottom(), 1.0, 1.0);
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bottomLeftQuad[ 3 ] = WindowVertex(outerRect.x(), outerRect.bottom(), 0.0, 1.0);
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m_shadowQuads.append(bottomLeftQuad);
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WindowQuad leftQuad(WindowQuadShadowLeft);
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leftQuad[ 0 ] = WindowVertex(-m_leftOffset, -m_topOffset + topLeftRect.height(), 0.0, 0.0);
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leftQuad[ 1 ] = WindowVertex(-m_leftOffset + leftRect.width(), -m_topOffset + topLeftRect.height(), 1.0, 0.0);
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leftQuad[ 2 ] = WindowVertex(-m_leftOffset + leftRect.width(), m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 1.0, 1.0);
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leftQuad[ 3 ] = WindowVertex(-m_leftOffset, m_topLevel->height() + m_bottomOffset - bottomLeftRect.height(), 0.0, 1.0);
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leftQuad[ 0 ] = WindowVertex(outerRect.x(), outerRect.y() + topLeft.height(), 0.0, 0.0);
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leftQuad[ 1 ] = WindowVertex(outerRect.x() + left.width(), outerRect.y() + topLeft.height(), 1.0, 0.0);
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leftQuad[ 2 ] = WindowVertex(outerRect.x() + left.width(), outerRect.bottom() - bottomLeft.height(), 1.0, 1.0);
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leftQuad[ 3 ] = WindowVertex(outerRect.x(), outerRect.bottom() - bottomLeft.height(), 0.0, 1.0);
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m_shadowQuads.append(leftQuad);
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}
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