workspace/kwin/effects/login.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 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 "login.h"
  22
  23 #include <kdebug.h>
  24
  25 namespace KWin
  26 {
  27
  28 KWIN_EFFECT( login, LoginEffect )
  29
  30 LoginEffect::LoginEffect()
  31     : progress( 1.0 )
  32     , login_window( NULL )
  33     {
  34     }
  35
  36 void LoginEffect::prePaintScreen( ScreenPrePaintData& data, int time )
  37     {
  38     if( login_window != NULL )
  39         {
  40         if( progress != 1.0 )
  41             {
  42             progress = qBound( 0.0, progress + time / animationTime( 2000 ), 1.0 );
  43             if( progress == 1.0 )
  44                 {
  45                 login_window->unrefWindow();
  46                 login_window = NULL;
  47                 effects->prePaintScreen( data, time );
  48                 return;
  49                 }
  50             }
  51         }
  52     effects->prePaintScreen( data, time );
  53     }
  54
  55 void LoginEffect::prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time )
  56     {
  57     if( progress != 1.0 && w == login_window )
  58         {
  59         w->enablePainting( EffectWindow::PAINT_DISABLED_BY_DELETE );
  60         data.setTranslucent();
  61         }
  62     effects->prePaintWindow( w, data, time );
  63     }
  64
  65 void LoginEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data )
  66     {
  67     if( w == login_window && progress != 1.0 )
  68         data.opacity *= ( 1.0 - progress );
  69     effects->paintWindow( w, mask, region, data );
  70     }
  71
  72 void LoginEffect::postPaintScreen()
  73     {
  74     if( login_window != NULL && progress != 1.0 )
  75         effects->addRepaintFull();
  76     effects->postPaintScreen();
  77     }
  78
  79 void LoginEffect::windowAdded( EffectWindow* w )
  80     {
  81     if( isLoginSplash( w ))
  82         {
  83         login_window = w;
  84         progress = 1.0;
  85         effects->addRepaintFull();
  86         }
  87     }
  88
  89 void LoginEffect::windowClosed( EffectWindow* w )
  90     {
  91     if( w == login_window )
  92         {
  93         login_window->refWindow();
  94         progress = 0.0;
  95         effects->addRepaintFull();
  96         }
  97     }
  98
  99 bool LoginEffect::isLoginSplash( EffectWindow* w )
 100     { // TODO there should be probably a better way (window type?)
 101     // see also fade effect and composite.cpp
 102     if( w->windowClass() == "ksplashx ksplashx"
 103         || w->windowClass() == "ksplashsimple ksplashsimple" )
 104         {
 105         return true;
 106         }
 107     return false;
 108     }
 109
 110 } // namespace