workspace/libs/kephal/outputs/desktopwidget/desktopwidgetoutputs.cpp

   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 #include "desktopwidgetoutputs.h"
  22 #include "../simpleoutput.h"
  23
  24 #include <QDesktopWidget>
  25 #include <QApplication>
  26 #include <QDebug>
  27
  28
  29 namespace Kephal {
  30
  31     DesktopWidgetOutputs::DesktopWidgetOutputs(QObject * parent)
  32             : Outputs(parent)
  33     {
  34         QDesktopWidget * desktop = QApplication::desktop();
  35         for (int i = 0; i < desktop->numScreens(); i++) {
  36             QRect geom = desktop->screenGeometry(i);
  37             qDebug() << "adding an output" << i << "with geom: " << geom;
  38
  39             SimpleOutput * output = new SimpleOutput(this,
  40                     "SCREEN-" + QString::number(i),
  41                     geom.size(),
  42                     geom.topLeft(),
  43                     true,
  44                     true);
  45             m_outputs.append(output);
  46         }
  47         for (int i = desktop->numScreens(); i < 4; i++) {
  48             qDebug() << "adding a disconnected output" << i;
  49
  50             SimpleOutput * output = new SimpleOutput(this,
  51                     "SCREEN-" + QString::number(i),
  52                     QSize(0, 0),
  53                     QPoint(0, 0),
  54                     false,
  55                     false);
  56             m_outputs.append(output);
  57         }
  58
  59         connect(desktop, SIGNAL(resized(int)), this, SLOT(screenChanged(int)));
  60     }
  61
  62     DesktopWidgetOutputs::~DesktopWidgetOutputs() {
  63         foreach(Output * output, m_outputs) {
  64             delete output;
  65         }
  66         m_outputs.clear();
  67     }
  68
  69     QList<Output *> DesktopWidgetOutputs::outputs()
  70     {
  71         QList<Output *> result;
  72         foreach(SimpleOutput * output, m_outputs) {
  73             result.append(output);
  74         }
  75         return result;
  76     }
  77
  78     void DesktopWidgetOutputs::activateLayout(const QMap<Output *, QRect> & layout)
  79     {
  80         Q_UNUSED(layout)
  81     }
  82
  83     void DesktopWidgetOutputs::screenChanged(int screen)
  84     {
  85         Q_UNUSED(screen)
  86
  87         QDesktopWidget * desktop = QApplication::desktop();
  88         for(int i = m_outputs.size() - 1; i >= desktop->numScreens(); i--) {
  89             SimpleOutput * output = m_outputs.at(i);
  90             if (output->isConnected()) {
  91                 qDebug() << "disconnecting output" << i;
  92                 output->_setConnected(false);
  93                 emit outputDisconnected(output);
  94             }
  95         }
  96
  97         for(int i = 0; i < desktop->numScreens(); i++) {
  98             if (m_outputs.size() <= i) {
  99                 m_outputs.append(new SimpleOutput(this,
 100                     "SCREEN-" + QString::number(i),
 101                     QSize(0, 0),
 102                     QPoint(0, 0),
 103                     false,
 104                     false));
 105             }
 106
 107             SimpleOutput * output = m_outputs[i];
 108             QRect geom = desktop->screenGeometry(i);
 109             if (! output->isConnected()) {
 110                 output->_setConnected(true);
 111                 output->_setActivated(true);
 112                 output->_setPosition(geom.topLeft());
 113                 output->_setSize(geom.size());
 114
 115                 emit outputConnected(output);
 116             }
 117             if (output->position() != geom.topLeft()) {
 118                 QPoint oldPos = output->position();
 119                 QPoint newPos = geom.topLeft();
 120                 qDebug() << "output" << i << "moved" << oldPos << "->" << newPos;
 121
 122                 output->_setPosition(newPos);
 123                 emit outputMoved(output, oldPos, newPos);
 124             }
 125             if (output->size() != geom.size()) {
 126                 QSize oldSize = output->size();
 127                 QSize newSize = geom.size();
 128                 qDebug() << "output" << i << "resized" << oldSize << "->" << newSize;
 129
 130                 output->_setSize(newSize);
 131                 emit outputResized(output, oldSize, newSize);
 132             }
 133         }
 134     }
 135
 136 }
 137