workspace/kwin/effects/test/test_thumbnail.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
   7 You can Freely distribute this program under the GNU General Public
   8 License. See the file "COPYING" for the exact licensing terms.
   9 ******************************************************************/
  10
  11 /*
  12
  13  Testing of painting a window more than once. The active window is painted
  14  once more as a thumbnail in the bottom-right corner of the screen.
  15
  16 */
  17
  18 #include "test_thumbnail.h"
  19
  20 namespace KWin
  21 {
  22
  23 KWIN_EFFECT( test_thumbnail, TestThumbnailEffect )
  24
  25 TestThumbnailEffect::TestThumbnailEffect()
  26     : active_window( NULL )
  27     {
  28     }
  29
  30 void TestThumbnailEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
  31     {
  32     effects->paintScreen( mask, region, data );
  33     if( active_window != NULL && region.contains( thumbnailRect()))
  34         {
  35         WindowPaintData data( active_window );
  36         QRect region;
  37         setPositionTransformations( data, region, active_window, thumbnailRect(), Qt::KeepAspectRatio );
  38         effects->drawWindow( active_window,
  39             PAINT_WINDOW_OPAQUE | PAINT_WINDOW_TRANSLUCENT | PAINT_WINDOW_TRANSFORMED,
  40             region, data );
  41         }
  42     }
  43
  44 void TestThumbnailEffect::windowActivated( EffectWindow* act )
  45     {
  46     active_window = act;
  47     effects->addRepaint( thumbnailRect());
  48     }
  49
  50 void TestThumbnailEffect::windowDamaged( EffectWindow* w, const QRect& )
  51     {
  52     if( w == active_window )
  53         effects->addRepaint( thumbnailRect());
  54     // TODO maybe just the relevant part of the area should be repainted?
  55     }
  56
  57 void TestThumbnailEffect::windowGeometryShapeChanged( EffectWindow* w, const QRect& old )
  58     {
  59     if( w == active_window && w->size() != old.size())
  60         effects->addRepaint( thumbnailRect());
  61     }
  62
  63 void TestThumbnailEffect::windowClosed( EffectWindow* w )
  64     {
  65     if( w == active_window )
  66         {
  67         active_window = NULL;
  68         effects->addRepaint( thumbnailRect());
  69         }
  70     }
  71
  72 QRect TestThumbnailEffect::thumbnailRect() const
  73     {
  74     return QRect( displayWidth() - 100, displayHeight() - 100, 100, 100 );
  75     }
  76
  77 } // namespace