workspace/plasma/shells/desktop/desktopcorona.h

   1 /*
   2  *   Copyright 2008 Aaron Seigo <aseigo@kde.org>
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU Library General Public License as
   6  *   published by the Free Software Foundation; either version 2, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details
  13  *
  14  *   You should have received a copy of the GNU Library General Public
  15  *   License along with this program; if not, write to the
  16  *   Free Software Foundation, Inc.,
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #ifndef DESKTOPCORONA_H
  21 #define DESKTOPCORONA_H
  22
  23 #include <QtGui/QGraphicsScene>
  24
  25 #include <Plasma/Corona>
  26
  27 namespace Plasma
  28 {
  29     class Applet;
  30 } // namespace Plasma
  31
  32 namespace Kephal {
  33     class Screen;
  34 } // namespace Kephal
  35
  36 /**
  37  * @short A Corona with desktop-y considerations
  38  */
  39 class DesktopCorona : public Plasma::Corona
  40 {
  41     Q_OBJECT
  42
  43 public:
  44     explicit DesktopCorona(QObject * parent = 0);
  45
  46     /**
  47      * Loads the default (system wide) layout for this user
  48      **/
  49     void loadDefaultLayout();
  50
  51     /**
  52      * Ensures we have the necessary containments for every screen
  53      */
  54     void checkScreens();
  55
  56     /**
  57      * Ensures we have the necessary containments for the given screen screen
  58      */
  59     void checkScreen(int screen, bool signalWhenExists = false);
  60
  61     virtual int numScreens() const;
  62     virtual QRect screenGeometry(int id) const;
  63     virtual QRegion availableScreenRegion(int id) const;
  64
  65 protected Q_SLOTS:
  66     void screenAdded(Kephal::Screen *s);
  67     void saveDefaultSetup();
  68
  69 private:
  70     void init();
  71     void addDesktopContainment(int screen, int desktop = -1);
  72     Plasma::Applet *loadDefaultApplet(const QString &pluginName, Plasma::Containment *c);
  73 };
  74
  75 #endif
  76
  77