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113 lines
3.4 KiB
113 lines
3.4 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 Rivo Laks <rivolaks@hot.ee> |
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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 "lookingglass.h" |
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#include <kwinglutils.h> |
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#include <kactioncollection.h> |
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#include <kaction.h> |
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#include <klocale.h> |
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#include <kdebug.h> |
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namespace KWin |
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{ |
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KWIN_EFFECT( lookingglass, LookingGlassEffect ) |
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KWIN_EFFECT_SUPPORTED( lookingglass, ShaderEffect::supported() ) |
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LookingGlassEffect::LookingGlassEffect() : QObject(), ShaderEffect("lookingglass") |
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{ |
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zoom = 1.0f; |
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target_zoom = 1.0f; |
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KActionCollection* actionCollection = new KActionCollection( this ); |
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KAction* a; |
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a = static_cast< KAction* >( actionCollection->addAction( KStandardAction::ZoomIn, this, SLOT( zoomIn()))); |
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a->setGlobalShortcut(KShortcut(Qt::META + Qt::Key_Plus)); |
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a = static_cast< KAction* >( actionCollection->addAction( KStandardAction::ZoomOut, this, SLOT( zoomOut()))); |
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a->setGlobalShortcut(KShortcut(Qt::META + Qt::Key_Minus)); |
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a = static_cast< KAction* >( actionCollection->addAction( KStandardAction::ActualSize, this, SLOT( toggle()))); |
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a->setGlobalShortcut(KShortcut(Qt::META + Qt::Key_0)); |
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radius = 200; // TODO config option |
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} |
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void LookingGlassEffect::toggle() |
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{ |
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if( target_zoom == 1.0f ) |
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target_zoom = 2.0f; |
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else |
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target_zoom = 1.0f; |
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setEnabled( true ); |
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} |
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void LookingGlassEffect::zoomIn() |
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{ |
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target_zoom = qMin(7.0f, target_zoom + 0.5f); |
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setEnabled( true ); |
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effects->addRepaint( cursorPos().x() - radius, cursorPos().y() - radius, 2*radius, 2*radius ); |
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} |
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void LookingGlassEffect::zoomOut() |
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{ |
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target_zoom -= 0.5; |
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if( target_zoom < 1 ) |
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{ |
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target_zoom = 1; |
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setEnabled( false ); |
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} |
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effects->addRepaint( cursorPos().x() - radius, cursorPos().y() - radius, 2*radius, 2*radius ); |
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} |
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void LookingGlassEffect::prePaintScreen( ScreenPrePaintData& data, int time ) |
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{ |
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if( zoom != target_zoom ) |
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{ |
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float diff = time / 500.0f; |
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if( target_zoom > zoom ) |
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zoom = qMin( zoom * qMax( 1.0f + diff, 1.2f ), target_zoom ); |
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else |
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zoom = qMax( zoom * qMin( 1.0f - diff, 0.8f ), target_zoom ); |
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kDebug() << "zoom is now " << zoom; |
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radius = qBound(200.0f, 200.0f * zoom, 500.0f); |
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if( zoom > 1.0f ) |
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{ |
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shader()->bind(); |
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shader()->setUniform("zoom", zoom); |
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shader()->setUniform("radius", (float)radius); |
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shader()->unbind(); |
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} |
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else |
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{ |
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setEnabled( false ); |
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} |
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effects->addRepaint( cursorPos().x() - radius, cursorPos().y() - radius, 2*radius, 2*radius ); |
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} |
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ShaderEffect::prePaintScreen( data, time ); |
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} |
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void LookingGlassEffect::mouseChanged( const QPoint& pos, const QPoint& old, Qt::MouseButtons, Qt::KeyboardModifiers ) |
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{ |
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if( pos != old && isEnabled() ) |
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{ |
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effects->addRepaint( pos.x() - radius, pos.y() - radius, 2*radius, 2*radius ); |
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effects->addRepaint( old.x() - radius, old.y() - radius, 2*radius, 2*radius ); |
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} |
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} |
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} // namespace |
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#include "lookingglass.moc"
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