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102 lines
2.9 KiB
102 lines
2.9 KiB
/***************************************************************** |
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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 "flame.h" |
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#include <assert.h> |
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namespace KWin |
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{ |
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KWIN_EFFECT( Flame, FlameEffect ) |
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void FlameEffect::prePaintScreen( int* mask, QRegion* region, int time ) |
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{ |
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if( !windows.isEmpty()) |
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*mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS; |
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effects->prePaintScreen(mask, region, time); |
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} |
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void FlameEffect::prePaintWindow( EffectWindow* w, int* mask, QRegion* paint, QRegion* clip, int time ) |
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{ |
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if( windows.contains( w )) |
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{ |
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if( windows[ w ] < 1 ) |
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{ |
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windows[ w ] += time / 500.; |
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*mask |= PAINT_WINDOW_TRANSFORMED; |
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DELETE ); |
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// Request the window to be divided into cells |
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w->requestVertexGrid( qMax( w->height() / 50, 5 )); |
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} |
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else |
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{ |
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windows.remove( w ); |
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w->unrefWindow(); |
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} |
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} |
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effects->prePaintWindow( w, mask, paint, clip, time ); |
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} |
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void FlameEffect::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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{ |
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QVector< Vertex >& vertices = w->vertices(); |
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QVector< Vertex > new_vertices; |
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double ylimit = windows[ w ] * w->height(); // parts above this are already away |
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assert( vertices.count() % 4 == 0 ); |
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for( int i = 0; |
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i < vertices.count(); |
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i += 4 ) |
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{ |
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bool is_in = false; |
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for( int j = 0; |
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j < 4; |
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++j ) |
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if( vertices[ i + j ].pos[ 1 ] >= ylimit ) |
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is_in = true; |
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if( !is_in ) |
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continue; |
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for( int j = 0; |
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j < 4; |
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++j ) |
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{ |
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Vertex vertex = vertices[ i + j ]; |
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new_vertices.append( vertex ); |
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} |
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} |
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if( new_vertices.isEmpty()) |
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return; // nothing to paint |
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w->vertices() = new_vertices; |
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w->markVerticesDirty(); |
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} |
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effects->paintWindow( w, mask, region, data ); |
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} |
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void FlameEffect::postPaintWindow( EffectWindow* w ) |
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{ |
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if( windows.contains( w )) |
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effects->addRepaint( w->geometry()); // workspace, since the window under it will need painting too |
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effects->postPaintScreen(); |
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} |
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void FlameEffect::windowClosed( EffectWindow* c ) |
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{ |
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windows[ c ] = 0; |
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c->refWindow(); |
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} |
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void FlameEffect::windowDeleted( EffectWindow* c ) |
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{ |
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windows.remove( c ); |
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} |
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} // namespace
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