d6a31bc921
all windows are faded out except the one that is being highlighted. It is nowhere near complete but committing it now so that the Plasma developers can start playing around with it. svn path=/trunk/KDE/kdebase/workspace/; revision=919159
99 lines
3.3 KiB
C++
99 lines
3.3 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) 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 "highlightwindow.h"
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#include <kdebug.h>
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namespace KWin
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{
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KWIN_EFFECT( highlightwindow, HighlightWindowEffect )
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HighlightWindowEffect::HighlightWindowEffect()
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: m_highlightedWindow( NULL )
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, m_monitorWindow( NULL )
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{
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m_atom = XInternAtom( display(), "_KDE_WINDOW_HIGHLIGHT", False );
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effects->registerPropertyType( m_atom, true );
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// Announce support by creating a dummy version on the root window
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unsigned char dummy = 0;
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XChangeProperty( display(), rootWindow(), m_atom, m_atom, 8, PropModeReplace, &dummy, 1 );
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}
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HighlightWindowEffect::~HighlightWindowEffect()
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{
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XDeleteProperty( display(), rootWindow(), m_atom );
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effects->registerPropertyType( m_atom, false );
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}
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void HighlightWindowEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
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{
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// If we are highlighting a window set the translucent flag to all others
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if( m_highlightedWindow && m_highlightedWindow != w && m_monitorWindow != w && w->isNormalWindow() )
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data.mask |= PAINT_WINDOW_TRANSLUCENT;
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effects->prePaintWindow( w, data, time );
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}
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void HighlightWindowEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
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{
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if( m_highlightedWindow && m_highlightedWindow != w && m_monitorWindow != w && w->isNormalWindow() )
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data.opacity *= 0.15; // TODO: Fade out
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effects->paintWindow( w, mask, region, data );
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}
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void HighlightWindowEffect::windowAdded( EffectWindow* w )
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{
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propertyNotify( w, m_atom ); // Check initial value
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}
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void HighlightWindowEffect::windowDeleted( EffectWindow* w )
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{
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if( m_monitorWindow == w )
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{ // The monitoring window was destroyed
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m_monitorWindow = NULL;
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m_highlightedWindow = NULL;
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}
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}
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void HighlightWindowEffect::propertyNotify( EffectWindow* w, long a )
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{
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if( a != m_atom )
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return; // Not our atom
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QByteArray byteData = w->readProperty( m_atom, m_atom, 32 );
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if( byteData.length() < 1 )
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return; // Invalid length
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long* data = reinterpret_cast<long*>( byteData.data() );
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if( !data[0] )
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{ // Purposely clearing highlight
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m_monitorWindow = NULL;
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m_highlightedWindow = NULL;
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return;
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}
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m_monitorWindow = w;
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m_highlightedWindow = effects->findWindow( data[0] );
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if( !m_highlightedWindow )
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kDebug(1212) << "Invalid window targetted for highlight. Requested:" << data[0];
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}
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} // namespace
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