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76 lines
1.9 KiB
C++
76 lines
1.9 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) 2007 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 "drunken.h"
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#include <math.h>
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namespace KWin
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{
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KWIN_EFFECT(drunken, DrunkenEffect)
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void DrunkenEffect::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 DrunkenEffect::prePaintWindow(EffectWindow* w, WindowPrePaintData& data, int time)
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{
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if (windows.contains(w)) {
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windows[ w ] += time / 1000.;
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if (windows[ w ] < 1)
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data.setTransformed();
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else
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windows.remove(w);
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}
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effects->prePaintWindow(w, data, time);
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}
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void DrunkenEffect::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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effects->paintWindow(w, mask, region, data);
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return;
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}
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WindowPaintData d1 = data;
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// 4 cycles, decreasing amplitude
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int diff = int(sin(windows[ w ] * 8 * M_PI) * (1 - windows[ w ]) * 10);
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d1.xTranslate -= diff;
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d1.opacity *= 0.5;
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effects->paintWindow(w, mask, region, d1);
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WindowPaintData d2 = data;
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d2.xTranslate += diff;
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d2.opacity *= 0.5;
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effects->paintWindow(w, mask, region, d2);
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}
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void DrunkenEffect::postPaintWindow(EffectWindow* w)
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{
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if (windows.contains(w))
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w->addRepaintFull();
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effects->postPaintWindow(w);
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}
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void DrunkenEffect::windowAdded(EffectWindow* w)
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{
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windows[ w ] = 0;
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w->addRepaintFull();
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}
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void DrunkenEffect::windowClosed(EffectWindow* w)
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{
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windows.remove(w);
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}
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} // namespace
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