5faa397849
for use in effects (and not only). Now a list of window quads (=window areas) is created at the beginning of the paint pass, prepaint calls can modify the split itself (i.e. divide it into more parts). The actual paint calls can then modify these quads (i.e. transform their geometry). This will allow better control of how the split is done and also allow painting e.g. only the decoration differently. Still work in progress, but it works. Also pass data to prepaint functions in a struct, as there is already quite a number of them. svn path=/trunk/KDE/kdebase/workspace/; revision=684893
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/*****************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
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You can Freely distribute this program under the GNU General Public
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License. See the file "COPYING" for the exact licensing terms.
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******************************************************************/
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#include "demo_shakymove.h"
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namespace KWin
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{
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KWIN_EFFECT( demo_shakymove, ShakyMoveEffect )
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ShakyMoveEffect::ShakyMoveEffect()
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{
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connect( &timer, SIGNAL( timeout()), SLOT( tick()));
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}
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static const int shaky_diff[] = { 0, 1, 2, 3, 2, 1, 0, -1, -2, -3, -2, -1 };
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static const int SHAKY_MAX = sizeof( shaky_diff ) / sizeof( shaky_diff[ 0 ] );
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void ShakyMoveEffect::prePaintScreen( ScreenPrePaintData& data, int time )
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{
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if( !windows.isEmpty())
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data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
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effects->prePaintScreen( data, time );
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}
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void ShakyMoveEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
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{
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if( windows.contains( w ))
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data.mask |= PAINT_WINDOW_TRANSFORMED;
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effects->prePaintWindow( w, data, time );
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}
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void ShakyMoveEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
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{
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if( windows.contains( w ))
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data.xTranslate += shaky_diff[ windows[ w ]];
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effects->paintWindow( w, mask, region, data );
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}
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void ShakyMoveEffect::windowUserMovedResized( EffectWindow* c, bool first, bool last )
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{
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if( first )
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{
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if( windows.isEmpty())
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timer.start( 50 );
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windows[ c ] = 0;
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}
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else if( last )
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{
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windows.remove( c );
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// just repaint whole screen, transformation is involved
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effects->addRepaintFull();
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if( windows.isEmpty())
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timer.stop();
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}
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}
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void ShakyMoveEffect::windowClosed( EffectWindow* c )
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{
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windows.remove( c );
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if( windows.isEmpty())
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timer.stop();
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}
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// TODO use time provided with prePaintWindow() instead
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void ShakyMoveEffect::tick()
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{
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for( QHash< const EffectWindow*, int >::Iterator it = windows.begin();
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it != windows.end();
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++it )
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{
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if( *it == SHAKY_MAX - 1 )
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*it = 0;
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else
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++(*it);
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// just repaint whole screen, transformation is involved
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effects->addRepaintFull();
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}
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}
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} // namespace
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#include "demo_shakymove.moc"
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