255 lines
10 KiB
C++
255 lines
10 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_finishing( false )
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, m_fadeDuration( double( animationTime( 150 )))
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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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static bool isInitiallyHidden( EffectWindow* w )
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{ // Is the window initially hidden until it is highlighted?
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return !w->visibleInClientGroup() || !w->isOnCurrentDesktop();
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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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// Calculate window opacities
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if( !m_highlightedWindows.isEmpty() )
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{ // Initial fade out and changing highlight animation
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double oldOpacity = m_windowOpacity[w];
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if( m_highlightedWindows.contains( w ))
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m_windowOpacity[w] = qMin( 1.0, m_windowOpacity[w] + time / m_fadeDuration );
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else if( w->isNormalWindow() || w->isDialog() ) // Only fade out windows
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m_windowOpacity[w] = qMax( isInitiallyHidden( w ) ? 0.0 : 0.15,
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m_windowOpacity[w] - time / m_fadeDuration );
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if( m_windowOpacity[w] != 1.0 )
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data.setTranslucent();
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if( oldOpacity != m_windowOpacity[w] )
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w->addRepaintFull();
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}
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else if( m_finishing && m_windowOpacity.contains( w ))
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{ // Final fading back in animation
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double oldOpacity = m_windowOpacity[w];
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if( isInitiallyHidden( w ))
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m_windowOpacity[w] = qMax( 0.0, m_windowOpacity[w] - time / m_fadeDuration );
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else
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m_windowOpacity[w] = qMin( 1.0, m_windowOpacity[w] + time / m_fadeDuration );
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if( m_windowOpacity[w] != 1.0 )
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data.setTranslucent();
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if( oldOpacity != m_windowOpacity[w] )
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w->addRepaintFull();
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if( m_windowOpacity[w] == 1.0 || m_windowOpacity[w] == 0.0 )
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m_windowOpacity.remove( w ); // We default to 1.0
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}
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// Show tabbed windows and windows on other desktops if highlighted
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if( m_windowOpacity.contains( w ) && m_windowOpacity[w] != 0.0 )
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{
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if( !w->visibleInClientGroup() )
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_CLIENT_GROUP );
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if( !w->isOnCurrentDesktop() )
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w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DESKTOP );
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}
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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_windowOpacity.contains( w ))
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data.opacity *= m_windowOpacity[w];
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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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if( !m_highlightedWindows.isEmpty() )
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{ // The effect is activated thus we need to add it to the opacity hash
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if( w->isNormalWindow() || w->isDialog() ) // Only fade out windows
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m_windowOpacity[w] = isInitiallyHidden( w ) ? 0.0 : 0.15;
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else
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m_windowOpacity[w] = 1.0;
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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::windowClosed( EffectWindow* w )
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{
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if( m_monitorWindow == w ) // The monitoring window was destroyed
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finishHighlighting();
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}
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void HighlightWindowEffect::windowDeleted( EffectWindow* w )
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{
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m_windowOpacity.remove( w );
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}
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void HighlightWindowEffect::propertyNotify( EffectWindow* w, long a )
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{
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if( !w || 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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{ // Property was removed, clearing highlight
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finishHighlighting();
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return;
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}
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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 by issuing a NULL target
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finishHighlighting();
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return;
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}
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m_monitorWindow = w;
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bool found = false;
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int length = byteData.length() / sizeof( data[0] );
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//foreach( EffectWindow* e, m_highlightedWindows )
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// effects->setElevatedWindow( e, false );
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m_highlightedWindows.clear();
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for( int i=0; i<length; i++ )
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{
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EffectWindow* foundWin = effects->findWindow( data[i] );
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if( !foundWin )
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{
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kDebug(1212) << "Invalid window targetted for highlight. Requested:" << data[i];
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continue;
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}
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if( !foundWin->isMinimized() )
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{
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m_highlightedWindows.append( foundWin );
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// TODO: We cannot just simply elevate the window as this will elevate it over
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// Plasma tooltips and other such windows as well
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//effects->setElevatedWindow( foundWin, true );
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}
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found = true;
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}
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if( !found )
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{
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finishHighlighting();
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return;
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}
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prepareHighlighting();
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m_windowOpacity[w] = 1.0; // Because it's not in stackingOrder() yet
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/* TODO: Finish thumbnails of offscreen windows, not sure if it's worth it though
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if( !m_highlightedWindow->isOnCurrentDesktop() )
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{ // Window is offscreen, determine thumbnail position
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QRect screenArea = effects->clientArea( MaximizeArea ); // Workable area of the active screen
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QRect outerArea = outerArea.adjusted( outerArea.width() / 10, outerArea.height() / 10,
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-outerArea.width() / 10, -outerArea.height() / 10 ); // Add 10% margin around the edge
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QRect innerArea = outerArea.adjusted( outerArea.width() / 40, outerArea.height() / 40,
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-outerArea.width() / 40, -outerArea.height() / 40 ); // Outer edge of the thumbnail border (2.5%)
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QRect thumbArea = outerArea.adjusted( 20, 20, -20, -20 ); // Outer edge of the thumbnail (20px)
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// Determine the maximum size that we can make the thumbnail within the innerArea
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double areaAspect = double( thumbArea.width() ) / double( thumbArea.height() );
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double windowAspect = aspectRatio( m_highlightedWindow );
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QRect thumbRect; // Position doesn't matter right now, but it will later
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if( windowAspect > areaAspect )
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// Top/bottom will touch first
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thumbRect = QRect( 0, 0, widthForHeight( thumbArea.height() ), thumbArea.height() );
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else // Left/right will touch first
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thumbRect = QRect( 0, 0, thumbArea.width(), heightForWidth( thumbArea.width() ));
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if( thumbRect.width() >= m_highlightedWindow->width() )
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// Area is larger than the window, just use the window's size
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thumbRect = m_highlightedWindow->geometry();
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// Determine position of desktop relative to the current one
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QPoint direction = effects->desktopGridCoords( m_highlightedWindow->desktop() ) -
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effects->desktopGridCoords( effects->currentDesktop() );
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// Draw a line from the center of the current desktop to the center of the target desktop.
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QPointF desktopLine( 0, 0, direction.x() * screenArea.width(), direction.y() * screenArea.height() );
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desktopLeft.translate( screenArea.width() / 2, screenArea.height() / 2 ); // Move to the screen center
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// Take the point where the line crosses the outerArea, this will be the tip of our arrow
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QPointF arrowTip;
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QLineF testLine( // Top
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outerArea.x(), outerArea.y(),
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outerArea.x() + outerArea.width(), outerArea.y() );
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if( desktopLine.intersect( testLine, &arrowTip ) != QLineF::BoundedIntersection )
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{
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testLine = QLineF( // Right
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outerArea.x() + outerArea.width(), outerArea.y(),
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outerArea.x() + outerArea.width(), outerArea.y() + outerArea.height() );
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if( desktopLine.intersect( testLine, &arrowTip ) != QLineF::BoundedIntersection )
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{
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testLine = QLineF( // Bottom
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outerArea.x() + outerArea.width(), outerArea.y() + outerArea.height(),
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outerArea.x(), outerArea.y() + outerArea.height() );
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if( desktopLine.intersect( testLine, &arrowTip ) != QLineF::BoundedIntersection )
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{
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testLine = QLineF( // Left
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outerArea.x(), outerArea.y() + outerArea.height(),
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outerArea.x(), outerArea.y() );
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desktopLine.intersect( testLine, &arrowTip ); // Should never fail
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}
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}
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}
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m_arrowTip = arrowTip.toPoint();
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} */
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}
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void HighlightWindowEffect::prepareHighlighting()
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{
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// Create window data for every window. Just calling [w] creates it.
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m_finishing = false;
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foreach( EffectWindow *w, effects->stackingOrder() )
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if( !m_windowOpacity.contains( w )) // Just in case we are still finishing from last time
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m_windowOpacity[w] = isInitiallyHidden( w ) ? 0.0 : 1.0;
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}
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void HighlightWindowEffect::finishHighlighting()
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{
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m_finishing = true;
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m_monitorWindow = NULL;
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m_highlightedWindows.clear();
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}
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} // namespace
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