git.maemo.org Git - jspeed/blob - src/orientation.cpp

   1 /*
   2  * This file is part of jSpeed.
   3  *
   4  * jSpeed is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * jSpeed 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 General Public License
  15  * along with jSpeed.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 #include "orientation.h"
  20
  21 Orientation::Orientation(QMainWindow* window): QtMobility::QOrientationSensor(window),
  22 current_(QtMobility::QOrientationReading::TopUp), orientations_(0), window_(window)
  23 {
  24     connect(this, SIGNAL(readingChanged()), this, SLOT(onReadingChanged()));
  25 }
  26
  27 void Orientation::setSupportedOrientations(int orientations)
  28 {
  29     orientations_ = orientations;
  30 }
  31
  32 void Orientation::update()
  33 {
  34     using QtMobility::QOrientationReading;
  35
  36     OrientationName orientation = LANDSCAPE;
  37
  38     QOrientationReading::Orientation current = reading()->orientation();
  39
  40     switch(current)
  41     {
  42     case QOrientationReading::LeftUp:
  43         orientation = PORTRAIT;
  44         break;
  45     case QOrientationReading::FaceUp:
  46         if(current_ == QOrientationReading::LeftUp)
  47         {
  48             orientation = PORTRAIT;
  49         }
  50         else
  51         {
  52             orientation = LANDSCAPE;
  53         }
  54         break;
  55     default:
  56         orientation = LANDSCAPE;
  57         break;
  58     }
  59
  60     current_ = current;
  61
  62     if(orientations_ & orientation)
  63     {
  64         switch(orientation)
  65         {
  66         case LANDSCAPE:
  67             window_->setAttribute(Qt::WA_Maemo5LandscapeOrientation, true);
  68             break;
  69         case PORTRAIT:
  70             window_->setAttribute(Qt::WA_Maemo5PortraitOrientation, true);
  71             break;
  72         }
  73     }
  74     else
  75     {
  76         if(orientations_ & LANDSCAPE)
  77         {
  78             window_->setAttribute(Qt::WA_Maemo5LandscapeOrientation, true);
  79         }
  80         else if(orientations_ & PORTRAIT)
  81         {
  82             window_->setAttribute(Qt::WA_Maemo5PortraitOrientation, true);
  83         }
  84     }
  85 }
  86
  87 void Orientation::onReadingChanged()
  88 {
  89     if(reading()->orientation() != current_)
  90     {
  91         update();
  92         emit changed();
  93     }
  94 }