60 lines
1.6 KiB
C++
60 lines
1.6 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_shiftworkspaceup.h"
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namespace KWin
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{
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KWIN_EFFECT( demo_shiftworkspaceup, ShiftWorkspaceUpEffect )
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ShiftWorkspaceUpEffect::ShiftWorkspaceUpEffect()
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: up( false )
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, diff( 0 )
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{
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connect( &timer, SIGNAL( timeout()), SLOT( tick()));
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timer.start( 2000 );
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}
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void ShiftWorkspaceUpEffect::prePaintScreen( ScreenPrePaintData& data, int time )
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{
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if( up && diff < 1000 )
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diff = qBound( 0, diff + time, 1000 ); // KDE3: note this differs from KCLAMP
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if( !up && diff > 0 )
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diff = qBound( 0, diff - time, 1000 );
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if( diff != 0 )
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data.mask |= PAINT_SCREEN_TRANSFORMED;
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effects->prePaintScreen( data, time );
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}
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void ShiftWorkspaceUpEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
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{
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if( diff != 0 )
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data.yTranslate -= diff / 100;
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effects->paintScreen( mask, region, data );
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}
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void ShiftWorkspaceUpEffect::postPaintScreen()
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{
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if( up ? diff < 1000 : diff > 0 )
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effects->addRepaintFull(); // trigger next animation repaint
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effects->postPaintScreen();
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}
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void ShiftWorkspaceUpEffect::tick()
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{
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up = !up;
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effects->addRepaintFull();
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}
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} // namespace
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#include "demo_shiftworkspaceup.moc"
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