workspace/libs/kephal/configurations/backendconfigurations.h

   1 /*
   2  *   Copyright 2008 Aike J Sommer <dev@aikesommer.name>
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as
   6  *   published by the Free Software Foundation; either version 2,
   7  *   or (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
  21 #ifndef KEPHAL_BACKENDCONFIGURATIONS_H
  22 #define KEPHAL_BACKENDCONFIGURATIONS_H
  23
  24
  25 #include <QMap>
  26 #include <QPoint>
  27 #include <QRect>
  28
  29 #include "kephal/configurations.h"
  30
  31
  32 namespace Kephal {
  33
  34     class BackendConfiguration : public Configuration {
  35         Q_OBJECT
  36         public:
  37             BackendConfiguration(QObject * parent);
  38
  39             /**
  40              * Returns the real layout, with screen-sizes
  41              * taken from the actual Outputs.
  42              *
  43              * @param simpleLayout The layout as returned
  44              *          from layout().
  45              * @param outputScreens A mapping of Outputs
  46              *          to Screens.
  47              * @param outputSizes The sizes to use for the
  48              *          Outputs instead of the current ones.
  49              */
  50             QMap<int, QRect> realLayout(const QMap<int, QPoint> & simpleLayout, const QMap<Output *, int> & outputScreens, const QMap<Output *, QSize> & outputSizes);
  51
  52             /**
  53              * Returns the real layout, with screen-sizes
  54              * taken from the actual Outputs.
  55              *
  56              * @param simpleLayout The layout as returned
  57              *          from layout().
  58              * @param outputScreens A mapping of Outputs
  59              *          to Screens.
  60              */
  61             QMap<int, QRect> realLayout(const QMap<int, QPoint> & simpleLayout, const QMap<Output *, int> & outputScreens);
  62
  63             /**
  64              * Returns the real layout, with screen-sizes
  65              * taken from the actual Outputs.
  66              * This will calculate the layout by calling
  67              * layout().
  68              *
  69              * @param outputScreens A mapping of Outputs
  70              *          to Screens.
  71              */
  72             QMap<int, QRect> realLayout(const QMap<Output *, int> & outputScreens);
  73
  74             /**
  75              * Returns the real layout, with screen-sizes
  76              * taken from the actual Outputs.
  77              * This will calculate the layout by calling
  78              * layout() and use the Output to Screen
  79              * mapping as currently active if possible.
  80              */
  81             QMap<int, QRect> realLayout();
  82
  83             /**
  84              * Returns a set of points covered in the
  85              * layout returned by layout().
  86              */
  87             QSet<QPoint> positions();
  88
  89             /**
  90              * Returns the positions as in positions
  91              * to which the Screen can be cloned.
  92              */
  93             QSet<QPoint> clonePositions(int screen);
  94
  95             /**
  96              * Returns the layout if the Screen screen
  97              * was to be cloned to any of the other
  98              * Screens.
  99              */
 100             QMap<int, QPoint> cloneLayout(int screen);
 101
 102             /**
 103              * Returns the possible positions as in
 104              * positions() to move the Screen screen
 105              * to.
 106              */
 107             QSet<QPoint> possiblePositions(int screen);
 108
 109         private:
 110             void simpleToReal(QMap<int, QPoint> & simpleLayout, const QMap<int, QSize> & screenSizes, int index, QMap<int, QRect> & screens);
 111             QList<QSet<QPoint> > partition(int screen);
 112             QSet<QPoint> border(QSet<QPoint> screens);
 113     };
 114
 115
 116
 117     class BackendConfigurations : public Configurations {
 118         Q_OBJECT
 119         public:
 120             static BackendConfigurations * self();
 121
 122             BackendConfigurations(QObject * parent);
 123             virtual ~BackendConfigurations();
 124
 125             /**
 126              * Find the Configuration for the currently
 127              * connected Outputs.
 128              */
 129             virtual Configuration * findConfiguration() = 0;
 130
 131             /**
 132              * Apply Output-specific settings such as size,
 133              * refresh-rate and rotation.
 134              */
 135             virtual void applyOutputSettings() = 0;
 136
 137             virtual BackendConfiguration * activeBackendConfiguration();
 138
 139         private:
 140             static BackendConfigurations * m_instance;
 141     };
 142
 143 }
 144
 145
 146 #endif // KEPHAL_BACKENDCONFIGURATIONS_H
 147