workspace/kcontrol/randr/randrdisplay.h

   1 /*
   2  * Copyright (c) 2007      Gustavo Pichorim Boiko <gustavo.boiko@kdemail.net>
   3  * Copyright (c) 2002,2003 Hamish Rodda <rodda@kde.org>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #ifndef __RANDRDISPLAY_H__
  21 #define __RANDRDISPLAY_H__
  22
  23 #include <QWidget>
  24 #include <KConfig>
  25 #include "randr.h"
  26
  27 #include <X11/Xlib.h>
  28
  29 class RandRDisplay
  30 {
  31 public:
  32         RandRDisplay();
  33         ~RandRDisplay();
  34
  35         bool isValid() const;
  36         const QString& errorCode() const;
  37         const QString& version() const;
  38
  39         int eventBase() const;
  40         int errorBase() const;
  41
  42         int screenIndexOfWidget(QWidget* widget);
  43
  44         int numScreens() const;
  45         LegacyRandRScreen* legacyScreen(int index);
  46         LegacyRandRScreen* currentLegacyScreen();
  47 #ifdef HAS_RANDR_1_2
  48         RandRScreen* screen(int index);
  49         RandRScreen* currentScreen();
  50 #endif
  51         void setCurrentScreen(int index);
  52         int     currentScreenIndex() const;
  53
  54         bool needsRefresh() const;
  55         void refresh();
  56
  57         /**
  58          * Loads saved settings.
  59          *
  60          * @param config the KConfig object to load from
  61          * @param loadScreens whether to call LegacyRandRScreen::load() for each screen
  62          * @retuns true if the settings should be applied on KDE startup.
  63          */
  64         bool loadDisplay(KConfig& config, bool loadScreens = true);
  65         void saveDisplay(KConfig& config, bool applyOnStartup, bool syncTrayApp);
  66
  67         static bool applyOnStartup(KConfig& config);
  68         static bool syncTrayApp(KConfig& config);
  69
  70         void applyProposed(bool confirm = true);
  71
  72         bool canHandle(const XEvent *e) const;
  73         void handleEvent(XEvent *e);
  74
  75 private:
  76         Display *m_dpy;
  77         int     m_numScreens;
  78         int     m_currentScreenIndex;
  79         LegacyScreenList m_legacyScreens;
  80 #ifdef HAS_RANDR_1_2
  81         ScreenList m_screens;
  82 #endif
  83
  84         bool m_valid;
  85         QString m_errorCode;
  86         QString m_version;
  87
  88         int     m_eventBase;
  89         int m_errorBase;
  90 };
  91
  92 #endif