workspace/kwin/effects/thumbnailaside.h

   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 /*
  23
  24  Testing of painting a window more than once.
  25
  26 */
  27
  28 #ifndef KWIN_THUMBNAILASIDE_H
  29 #define KWIN_THUMBNAILASIDE_H
  30
  31 #include <kwineffects.h>
  32
  33 #include <qhash.h>
  34
  35 namespace KWin
  36 {
  37
  38 class ThumbnailAsideEffect
  39     : public QObject
  40     , public Effect
  41     {
  42     Q_OBJECT
  43     public:
  44         ThumbnailAsideEffect();
  45         virtual void paintScreen( int mask, QRegion region, ScreenPaintData& data );
  46         virtual void windowDamaged( EffectWindow* w, const QRect& damage );
  47         virtual void windowGeometryShapeChanged( EffectWindow* w, const QRect& old );
  48         virtual void windowClosed( EffectWindow* w );
  49     private slots:
  50         void toggleCurrentThumbnail();
  51     private:
  52         void addThumbnail( EffectWindow* w );
  53         void removeThumbnail( EffectWindow* w );
  54         void arrange();
  55         void repaintAll();
  56         struct Data
  57             {
  58             EffectWindow* window; // the same like the key in the hash (makes code simpler)
  59             int index;
  60             QRect rect;
  61             };
  62         QHash< EffectWindow*, Data > windows;
  63         int maxwidth;
  64         int spacing;
  65         double opacity;
  66         int screen;
  67     };
  68
  69 } // namespace
  70
  71 #endif