118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
/*****************************************************************
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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) 2006 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 "dialogparent.h"
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#include <client.h>
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// Note that currently effects need to be manually enabled in the EffectsHandler
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// class constructor (in effects.cpp).
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namespace KWinInternal
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{
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void DialogParentEffect::prePaintWindow( Scene::Window* w, int* mask, QRegion* region, int time )
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{
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// How long does it take for the effect to get it's full strength (in ms)
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const float changeTime = 200;
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// Check if this window has a modal dialog and change the window's
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// effect's strength accordingly
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bool hasDialog = hasModalWindow(w->window());
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if( hasDialog )
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{
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// Increase effect strength of this window
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effectStrength[w] = qMin(1.0f, effectStrength[w] + time/changeTime);
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}
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else
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{
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effectStrength[w] = qMax(0.0f, effectStrength[w] - time/changeTime);
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}
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// Call the next effect
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effects->prePaintWindow( w, mask, region, time );
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}
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void DialogParentEffect::paintWindow( Scene::Window* w, int mask, QRegion region, WindowPaintData& data )
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{
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float s = effectStrength[w];
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if(s > 0.0f)
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{
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// Brightness will be within [1.0; 0.6]
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data.brightness *= (1.0 - s * 0.4);
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// Saturation within [1.0; 0.4]
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data.saturation *= (1.0 - s * 0.6);
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}
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// Call the next effect.
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effects->paintWindow( w, mask, region, data );
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}
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void DialogParentEffect::postPaintWindow( Scene::Window* w )
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{
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float s = effectStrength[w];
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// If strength is between 0 and 1, the effect is still in progress and the
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// window has to be repainted during the next pass
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if( s > 0.0 && s < 1.0 )
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w->window()->addDamageFull(); // trigger next animation repaint
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// Call the next effect.
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effects->postPaintWindow( w );
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}
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void DialogParentEffect::windowActivated( Toplevel* t )
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{
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// If this window is a dialog, we need to damage it's parent window, so
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// that the effect could be run for it
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// Set the window to be faded (or NULL if no window is active).
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Client* c = qobject_cast<Client *>(t);
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if ( c && c->isModal() )
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{
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// c is a modal dialog
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ClientList mainclients = c->mainClients();
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foreach( Client* parent, mainclients )
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parent->addDamageFull();
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}
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}
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void DialogParentEffect::windowDeleted( Toplevel* t )
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{
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// If this window is a dialog, we need to damage it's parent window, so
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// that the effect could be run for it
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// Set the window to be faded (or NULL if no window is active).
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Client* c = qobject_cast<Client *>(t);
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if ( c && c->isModal() )
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{
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// c is a modal dialog
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ClientList mainclients = c->mainClients();
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foreach( Client* parent, mainclients )
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parent->addDamageFull();
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}
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}
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bool DialogParentEffect::hasModalWindow( Toplevel* t )
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{
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Client* c = qobject_cast<Client *>(t);
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if( !c )
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return false;
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// Check if any of the direct transients (children) of this window is modal
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for( ClientList::ConstIterator it = c->transients().begin(); it != c->transients().end(); ++it )
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if( (*it)->isModal())
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return true;
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return false;
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}
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} // namespace
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