yukijoou/kwin
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Make parts of the shadow texture that are under windows transparent.

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Fixes translucent windows graphical glitch.

svn path=/trunk/KDE/kdebase/workspace/; revision=889744
This commit is contained in:
Lucas Murray 2008-11-27 14:25:59 +00:00
parent 117cb5719f
commit 2385ed545b
1 changed files with 8 additions and 0 deletions
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8
clients/oxygen/oxygen.cpp
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@ -193,6 +193,7 @@ QList< QList<QImage> > OxygenFactory::shadowTextures()
shadow->fill( Qt::transparent );
QRadialGradient rg( size, size, size );
QColor c = color;
c.setAlpha( 0 ); rg.setColorAt( 4/size, c );
c.setAlpha( 255 ); rg.setColorAt( 4.4/size, c );
c = glow;
c.setAlpha( 220 ); rg.setColorAt( 4.5/size, c );
@ -207,6 +208,7 @@ QList< QList<QImage> > OxygenFactory::shadowTextures()
rg = QRadialGradient( size, size, size );
c = color;
c.setAlpha( 0 ); rg.setColorAt( 4/size, c );
c.setAlpha( 255 ); rg.setColorAt( 4.4/size, c );
c = glow2;
c.setAlpha( 0.58*255 ); rg.setColorAt( 4.5/size, c );
@ -319,6 +321,12 @@ QList< QList<QImage> > OxygenFactory::shadowTextures()
p.setPen(QPen(lg, 0.8));
p.drawEllipse(QRectF(size-4, size-4, 8, 8));
// cut out the part of the texture that is under the window
p.setCompositionMode( QPainter::CompositionMode_Xor );
p.setBrush( QColor( 0, 0, 0, 255 ));
p.setPen( Qt::NoPen );
p.drawEllipse(QRectF(size-4, size-4, 8, 8));
p.end();
MAKE_TEX( w, h, 0, h+1 ); // corner