workspace/kwin/effects/scalein.cpp

   1 /********************************************************************
   2  KWin - the KDE window manager
   3  This file is part of the KDE project.
   4
   5 Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 *********************************************************************/
  20
  21 #include "scalein.h"
  22
  23 namespace KWin
  24 {
  25
  26 KWIN_EFFECT( scalein, ScaleInEffect )
  27
  28 void ScaleInEffect::prePaintScreen( ScreenPrePaintData& data, int time )
  29     {
  30     if( !windows.isEmpty())
  31         data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
  32     effects->prePaintScreen( data, time );
  33     }
  34
  35 void ScaleInEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
  36     {
  37     if( windows.contains( w ))
  38         {
  39         windows[ w ] += time / 300.; // complete change in 300ms
  40         if( windows[ w ] < 1 )
  41             data.setTransformed();
  42         else
  43             windows.remove( w );
  44         }
  45     effects->prePaintWindow( w, data, time );
  46     }
  47
  48 void ScaleInEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
  49     {
  50     if( windows.contains( w ))
  51         {
  52         data.xScale *= windows[ w ];
  53         data.yScale *= windows[ w ];
  54         data.xTranslate += int( w->width() / 2 * ( 1 - windows[ w ] ));
  55         data.yTranslate += int( w->height() / 2 * ( 1 - windows[ w ] ));
  56         }
  57     effects->paintWindow( w, mask, region, data );
  58     }
  59
  60 void ScaleInEffect::postPaintWindow( EffectWindow* w )
  61     {
  62     if( windows.contains( w ))
  63         w->addRepaintFull(); // trigger next animation repaint
  64     effects->postPaintWindow( w );
  65     }
  66
  67 void ScaleInEffect::windowAdded( EffectWindow* c )
  68     {
  69     if( c->isOnCurrentDesktop())
  70         {
  71         windows[ c ] = 0;
  72         c->addRepaintFull();
  73         }
  74     }
  75
  76 void ScaleInEffect::windowClosed( EffectWindow* c )
  77     {
  78     windows.remove( c );
  79     }
  80
  81 } // namespace