kwin/effects/dialogparent.cpp
Luboš Luňák e6069e9cf6 Arghl. Again a stupid bug caused by float having poor precision.
Reverting r700026 and changing floats to doubles again. I'd probably like
to change even the ones interfacing with OpenGL which I've left for now.


svn path=/trunk/KDE/kdebase/workspace/; revision=707987
2007-09-03 15:00:43 +00:00

96 lines
3 KiB
C++

/*****************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2006 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 "dialogparent.h"
namespace KWin
{
KWIN_EFFECT( dialogparent, DialogParentEffect )
void DialogParentEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
{
// How long does it take for the effect to get it's full strength (in ms)
const double changeTime = 200;
// Check if this window has a modal dialog and change the window's
// effect's strength accordingly
bool hasDialog = w->findModal() != NULL;
if( hasDialog )
{
// Increase effect strength of this window
effectStrength[w] = qMin(1.0, effectStrength[w] + time/changeTime);
}
else
{
effectStrength[w] = qMax(0.0, effectStrength[w] - time/changeTime);
}
// Call the next effect
effects->prePaintWindow( w, data, time );
}
void DialogParentEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
{
double s = effectStrength[w];
if(s > 0.0f)
{
// Brightness will be within [1.0; 0.6]
data.brightness *= (1.0 - s * 0.4);
// Saturation within [1.0; 0.4]
data.saturation *= (1.0 - s * 0.6);
}
// Call the next effect.
effects->paintWindow( w, mask, region, data );
}
void DialogParentEffect::postPaintWindow( EffectWindow* w )
{
double s = effectStrength[w];
// If strength is between 0 and 1, the effect is still in progress and the
// window has to be repainted during the next pass
if( s > 0.0 && s < 1.0 )
w->addRepaintFull(); // trigger next animation repaint
// Call the next effect.
effects->postPaintWindow( w );
}
void DialogParentEffect::windowActivated( EffectWindow* w )
{
// If this window is a dialog, we need to repaint it's parent window, so
// that the effect could be run for it
// Set the window to be faded (or NULL if no window is active).
if( w && w->isModal() )
{
// w is a modal dialog
EffectWindowList mainwindows = w->mainWindows();
foreach( EffectWindow* parent, mainwindows )
parent->addRepaintFull();
}
}
void DialogParentEffect::windowClosed( EffectWindow* w )
{
// If this window is a dialog, we need to repaint it's parent window, so
// that the effect could be run for it
// Set the window to be faded (or NULL if no window is active).
if ( w && w->isModal() )
{
// w is a modal dialog
EffectWindowList mainwindows = w->mainWindows();
foreach( EffectWindow* parent, mainwindows )
parent->addRepaintFull();
}
}
} // namespace