workspace/kwin/effects/diminactive.cpp

   1 /********************************************************************
   2  KWin - the KDE window manager
   3  This file is part of the KDE project.
   4
   5 Copyright (C) 2007 Lubos Lunak <l.lunak@kde.org>
   6 Copyright (C) 2007 Christian Nitschkowski <christian.nitschkowski@kdemail.net>
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 *********************************************************************/
  21
  22 #include "diminactive.h"
  23
  24 #include <kconfiggroup.h>
  25
  26 namespace KWin
  27 {
  28
  29 KWIN_EFFECT( diminactive, DimInactiveEffect )
  30
  31 DimInactiveEffect::DimInactiveEffect()
  32     {
  33     reconfigure( ReconfigureAll );
  34     active = effects->activeWindow();
  35     }
  36
  37 void DimInactiveEffect::reconfigure( ReconfigureFlags )
  38     {
  39     KConfigGroup conf = EffectsHandler::effectConfig("DimInactive");
  40     dim_panels = conf.readEntry("DimPanels", false);
  41     dim_desktop = conf.readEntry("DimDesktop", false);
  42     dim_by_group = conf.readEntry("DimByGroup", true);
  43     dim_strength = conf.readEntry("Strength", 25);
  44     }
  45
  46 void DimInactiveEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
  47     {
  48     if( dimWindow( w ))
  49         {
  50         data.brightness *= (1.0 - (dim_strength / 100.0));
  51         data.saturation *= (1.0 - (dim_strength / 100.0));
  52         }
  53     effects->paintWindow( w, mask, region, data );
  54     }
  55
  56 bool DimInactiveEffect::dimWindow( const EffectWindow* w ) const
  57     {
  58     if( active == w )
  59         return false; // never dim active window
  60     if( active && dim_by_group && active->group() == w->group())
  61         return false; // don't dim in active group if configured so
  62     if( w->isDock() && !dim_panels )
  63         return false; // don't dim panels if configured so
  64     if( w->isDesktop() && !dim_desktop )
  65         return false; // don't dim the desktop if configured so
  66     if( !w->isNormalWindow() && !w->isDialog() && !w->isDock() && !w->isDesktop())
  67         return false; // don't dim more special window types
  68     // don't dim unmanaged windows, grouping doesn't work for them and maybe dimming
  69     // them doesn't make sense in general (they should be short-lived anyway)
  70     if( !w->isManaged())
  71         return false;
  72     return true; // dim the rest
  73     }
  74
  75 void DimInactiveEffect::windowActivated( EffectWindow* w )
  76     {
  77     if( active != NULL )
  78         {
  79         if( dim_by_group )
  80             {
  81             if(( w == NULL || w->group() != active->group()) && active->group() != NULL )
  82                 { // repaint windows that are no longer in the active group
  83                 foreach( EffectWindow* tmp, active->group()->members())
  84                     tmp->addRepaintFull();
  85                 }
  86             }
  87         else
  88             active->addRepaintFull();
  89         }
  90     active = w;
  91     if( active != NULL )
  92         {
  93         if( dim_by_group )
  94             {
  95             if( active->group() != NULL )
  96                 { // repaint newly active windows
  97                 foreach( EffectWindow* tmp, active->group()->members())
  98                     tmp->addRepaintFull();
  99                 }
 100             }
 101         else
 102             active->addRepaintFull();
 103        }
 104     }
 105
 106 } // namespace