110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
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/********************************************************************
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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) 2009 Lucas Murray <lmurray@undefinedfire.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "fadedesktop.h"
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#include <math.h>
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namespace KWin
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{
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KWIN_EFFECT( fadedesktop, FadeDesktopEffect )
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FadeDesktopEffect::FadeDesktopEffect()
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: m_fading( false )
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{
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m_timeline.setCurveShape( TimeLine::LinearCurve );
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reconfigure( ReconfigureAll );
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}
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void FadeDesktopEffect::reconfigure( ReconfigureFlags )
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{
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m_timeline.setDuration( animationTime( 250 ));
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}
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void FadeDesktopEffect::prePaintScreen( ScreenPrePaintData &data, int time )
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{
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if( m_fading )
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{
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m_timeline.addTime( time );
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// PAINT_SCREEN_BACKGROUND_FIRST is needed because screen will be actually painted more than once,
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// so with normal screen painting second screen paint would erase parts of the first paint
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if( m_timeline.value() != 1.0 )
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data.mask |= PAINT_SCREEN_TRANSFORMED | PAINT_SCREEN_BACKGROUND_FIRST;
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else
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{
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m_fading = false;
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m_timeline.setProgress( 0.0 );
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effects->setActiveFullScreenEffect( NULL );
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}
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}
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effects->prePaintScreen( data, time );
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}
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void FadeDesktopEffect::postPaintScreen()
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{
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if( m_fading )
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effects->addRepaintFull();
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effects->postPaintScreen();
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}
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void FadeDesktopEffect::prePaintWindow( EffectWindow *w, WindowPrePaintData &data, int time )
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{
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if( m_fading )
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{
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if( w->isOnDesktop( m_oldDesktop ))
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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data.setTranslucent();
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}
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effects->prePaintWindow( w, data, time );
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}
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void FadeDesktopEffect::paintWindow( EffectWindow *w, int mask, QRegion region, WindowPaintData &data )
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{
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if( m_fading && !( w->isOnCurrentDesktop() && w->isOnDesktop( m_oldDesktop )))
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{
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if( w->isOnDesktop( m_oldDesktop ))
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data.opacity *= 1 - m_timeline.value();
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else
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data.opacity *= m_timeline.value();
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}
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effects->paintWindow( w, mask, region, data );
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}
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void FadeDesktopEffect::desktopChanged( int old )
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{
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if( effects->activeFullScreenEffect() && effects->activeFullScreenEffect() != this )
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return;
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// TODO: Fix glitches when fading while a previous fade is still happening
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effects->setActiveFullScreenEffect( this );
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m_fading = true;
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m_timeline.setProgress( 0 );
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m_oldDesktop = old;
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effects->addRepaintFull();
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}
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} // namespace
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#include "fadedesktop.moc"
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