69 lines
1.8 KiB
C++
69 lines
1.8 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) 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 "demo_showpicture.h"
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#include <kstandarddirs.h>
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#include <qimage.h>
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namespace KWin
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{
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KWIN_EFFECT( Demo_ShowPicture, ShowPictureEffect )
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ShowPictureEffect::ShowPictureEffect()
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: init( true )
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, picture( NULL )
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{
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}
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ShowPictureEffect::~ShowPictureEffect()
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{
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delete picture;
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}
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void ShowPictureEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
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{
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effects->paintScreen( mask, region, data );
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#ifdef HAVE_OPENGL
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if( init )
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{
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loadPicture();
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init = false;
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}
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if( picture && region.intersects( pictureRect ))
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{
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glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT );
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picture->bind();
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glEnable( GL_BLEND );
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glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
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picture->render( mask, region, pictureRect );
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picture->unbind();
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glPopAttrib();
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}
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#endif
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}
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void ShowPictureEffect::loadPicture()
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{
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#ifdef HAVE_OPENGL
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QString file = KGlobal::dirs()->findResource( "appdata", "showpicture.png" );
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if( file.isEmpty())
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return;
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QImage im( file );
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QRect area = effects->clientArea( PlacementArea, QPoint( 0, 0 ), effects->currentDesktop());
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picture = new GLTexture( im );
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pictureRect = QRect( area.x() + ( area.width() - im.width()) / 2,
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area.y() + ( area.height() - im.height()) / 2, im.width(), im.height());
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#endif
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}
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} // namespace
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