workspace/kwin/effects/magnifier.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
   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 #ifndef KWIN_MAGNIFIER_H
  22 #define KWIN_MAGNIFIER_H
  23
  24 #include <kwineffects.h>
  25
  26 namespace KWin
  27 {
  28
  29 class MagnifierEffect
  30     : public QObject, public Effect
  31     {
  32     Q_OBJECT
  33     public:
  34         MagnifierEffect();
  35         virtual void reconfigure( ReconfigureFlags );
  36         virtual void prePaintScreen( ScreenPrePaintData& data, int time );
  37         virtual void paintScreen( int mask, QRegion region, ScreenPaintData& data );
  38         virtual void postPaintScreen();
  39         virtual void mouseChanged( const QPoint& pos, const QPoint& old,
  40             Qt::MouseButtons buttons, Qt::MouseButtons oldbuttons,
  41             Qt::KeyboardModifiers modifiers, Qt::KeyboardModifiers oldmodifiers );
  42     private slots:
  43         void zoomIn();
  44         void zoomOut();
  45         void toggle();
  46     private:
  47         QRect magnifierArea( QPoint pos = cursorPos()) const;
  48         double zoom;
  49         double target_zoom;
  50         QSize magnifier_size;
  51     };
  52
  53 } // namespace
  54
  55 #endif