89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/*****************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2007 Rivo Laks <rivolaks@hot.ee>
|
|
|
|
You can Freely distribute this program under the GNU General Public
|
|
License. See the file "COPYING" for the exact licensing terms.
|
|
******************************************************************/
|
|
|
|
|
|
#include "demo_wavywindows.h"
|
|
|
|
#include <math.h>
|
|
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
KWIN_EFFECT( demo_wavywindows, WavyWindowsEffect )
|
|
|
|
WavyWindowsEffect::WavyWindowsEffect()
|
|
{
|
|
mTimeElapsed = 0.0f;
|
|
}
|
|
|
|
|
|
void WavyWindowsEffect::prePaintScreen( ScreenPrePaintData& data, int time )
|
|
{
|
|
// Adjust elapsed time
|
|
mTimeElapsed += (time / 1000.0f);
|
|
// We need to mark the screen windows as transformed. Otherwise the whole
|
|
// screen won't be repainted, resulting in artefacts
|
|
data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
|
|
|
|
effects->prePaintScreen(data, time);
|
|
}
|
|
|
|
void WavyWindowsEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
|
|
{
|
|
// This window will be transformed by the effect
|
|
data.setTransformed();
|
|
// Check if OpenGL compositing is used
|
|
// Request the window to be divided into cells which are at most 30x30
|
|
// pixels big
|
|
data.quads = data.quads.makeGrid( 30 );
|
|
|
|
effects->prePaintWindow( w, data, time );
|
|
}
|
|
|
|
void WavyWindowsEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
|
|
{
|
|
// Make sure we have OpenGL compositing and the window is vidible and not a
|
|
// special window
|
|
// TODO if( w->isVisible() && !w->isSpecialWindow() )
|
|
if( !w->isSpecialWindow() )
|
|
{
|
|
// We have OpenGL compositing and the window has been subdivided
|
|
// because of our request (in pre-paint pass)
|
|
// Transform all the vertices to create wavy effect
|
|
for( int i = 0;
|
|
i < data.quads.count();
|
|
++i )
|
|
for( int j = 0;
|
|
j < 4;
|
|
++j )
|
|
{
|
|
WindowVertex& v = data.quads[ i ][ j ];
|
|
v.move( v.x() + sin(mTimeElapsed + v.originalY() / 60 + 0.5f) * 10,
|
|
v.y() + sin(mTimeElapsed + v.originalX() / 80) * 10 );
|
|
}
|
|
}
|
|
|
|
// Call the next effect.
|
|
effects->paintWindow( w, mask, region, data );
|
|
}
|
|
|
|
void WavyWindowsEffect::postPaintScreen()
|
|
{
|
|
// Repaint the workspace so that everything would be repainted next time
|
|
effects->addRepaintFull();
|
|
|
|
// Call the next effect.
|
|
effects->postPaintScreen();
|
|
}
|
|
|
|
} // namespace
|
|
|