29 lines
1.5 KiB
Text
29 lines
1.5 KiB
Text
This document lists changed needed for porting KWin decoration clients from KDE3 to KDE4:
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- the client needs to be ported to KDE4/Qt4 (obviously)
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- KCommonDecoration no longer inherits KDecoration, it only has the same API (it is
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source-compatible) - this means that generally there should not be any changes related
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to this needed, with the exception of converting from KCommonDecoration* to KDecoration*
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(most notably in createDecoration()) - call decoration() to do the conversion;
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for example, change
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"
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KDecoration* YourClientHandler::createDecoration( KDecorationBridge* bridge )
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{
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return new YourClientClient( bridge, this );
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}
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"
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to
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"
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KDecoration* YourClientHandler::createDecoration( KDecorationBridge* bridge )
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{
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return ( new YourClientClient( bridge, this ))->decoration();
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}
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"
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- KDecoration::workspaceWidget() has been removed, for drawing outlines in drawbound(),
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use code similar to example in the documentation for KDecoration::drawbound()
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- KDecoration::animateMinimize() and KDecoration::helperShowHide() have been removed,
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animations are now implemented only by KWin's compositing code
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- there are new AbilityColor* abilities you should add to supports()
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- Qt::WA_PaintOnScreen attribute is enabled for KDecoration::widget() in order to avoid
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extensive and unnecessary memory usage caused by the backing store. Double-buffer
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manually if necessary using a temporary QPixmap in paintEvent().
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