Handle screen distance stereo setting

Author: pka

src/plugins/globe/globe_plugin.cpp

@@ -164,7 +164,7 @@ void GlobePlugin::settings()
 {
   if (mSettingsDialog.exec())
   {
-    viewer.QgsGLWidgetAdapter::setStereoMode(mSettingsDialog.stereoMode);
+    //viewer stereo settings set by mSettingsDialog and stored in QSettings
   }
 }
 

src/plugins/globe/globe_plugin_dialog.cpp

@@ -32,16 +32,16 @@
 #include <QStringList>
 #include <QVariant>
 
-#include <osgViewer/Viewer>
+#include <osg/DisplaySettings>
 
 //constructor
 QgsGlobePluginDialog::QgsGlobePluginDialog( QWidget* parent, Qt::WFlags fl )
     : QDialog( parent, fl )
 {
   setupUi( this );
-  stereoMode = settings.value( "/Plugin-Globe/stereoMode", "OFF" ).toString();
-  comboStereoMode->setCurrentIndex( comboStereoMode->findText( stereoMode ) );
-  //showMessageBox("constructor " + stereoMode);
+  getStereoConfig(); //default values from OSG
+  loadStereoConfig();
+  setStereoConfig(); //overwrite with values from QSettings
 }
 
 //destructor
@@ -72,6 +72,8 @@ bool QgsGlobePluginDialog::globeRunning()
 
 void QgsGlobePluginDialog::on_buttonBox_accepted()
 {
+  setStereoConfig();
+  saveStereoConfig();
   /*
    * 
   // Validate input settings
@@ -170,7 +172,6 @@ void QgsGlobePluginDialog::on_buttonBox_rejected()
 
 void QgsGlobePluginDialog::on_comboStereoMode_currentIndexChanged( QString mode )
 {
-  stereoMode = mode;
   //showMessageBox("index_changed " + stereoMode);
 }
 
@@ -180,3 +181,70 @@ void QgsGlobePluginDialog::showMessageBox( QString text )
     msgBox.setText(text);
     msgBox.exec();
 }
+
+void QgsGlobePluginDialog::getStereoConfig()
+{
+  //stereoMode ignored
+
+  screenDistance->setValue( osg::DisplaySettings::instance()->getScreenDistance() );
+}
+
+void QgsGlobePluginDialog::setStereoConfig()
+{
+  //http://www.openscenegraph.org/projects/osg/wiki/Support/UserGuides/StereoConfig
+  //http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a00181.html
+
+  QString stereoMode = comboStereoMode->currentText();
+  if("OFF" == stereoMode)
+  {
+    osg::DisplaySettings::instance()->setStereo( false );
+  }
+  else
+  {
+    osg::DisplaySettings::instance()->setStereo( true );
+
+    if("ANAGLYPHIC" == stereoMode)
+    {
+      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::ANAGLYPHIC );
+    }
+    else if("VERTICAL_SPLIT" == stereoMode)
+    {
+      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::VERTICAL_SPLIT );
+    }
+    else if("HORIZONTAL_SPLIT" == stereoMode)
+    {
+      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::HORIZONTAL_SPLIT );
+    }
+    else if("QUAD_BUFFER" == stereoMode)
+    {
+      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::QUAD_BUFFER );
+    }
+    else
+    {
+      //should never get here
+      QMessageBox msgBox;
+      msgBox.setText("This stereo mode has not been implemented yet. Defaulting to ANAGLYPHIC");
+      msgBox.exec();
+    }
+  }
+
+  osg::DisplaySettings::instance()->setScreenDistance( screenDistance->value() );
+}
+
+void QgsGlobePluginDialog::loadStereoConfig()
+{
+  if ( settings.contains( "/Plugin-Globe/stereoMode" ) )
+  {
+    comboStereoMode->setCurrentIndex( comboStereoMode->findText( settings.value( "/Plugin-Globe/stereoMode" ).toString() ) );
+  }
+  if ( settings.contains( "/Plugin-Globe/screenDistance" ) )
+  {
+    screenDistance->setValue( settings.value( "/Plugin-Globe/screenDistance" ).toDouble() );
+  }
+}
+
+void QgsGlobePluginDialog::saveStereoConfig()
+{
+  settings.setValue( "/Plugin-Globe/stereoMode", comboStereoMode->currentText() );
+  settings.setValue( "/Plugin-Globe/screenDistance", screenDistance->value() );
+}

src/plugins/globe/globe_plugin_dialog.h

@@ -30,16 +30,22 @@ class QgsGlobePluginDialog:public QDialog, private Ui::QgsGlobePluginDialogGuiBa
   public:
     QgsGlobePluginDialog( QWidget * parent = 0, Qt::WFlags fl = 0 );
     ~QgsGlobePluginDialog();
-    QString stereoMode;
 
   private:
     QString earthFile;
     QString openFile();
     QSettings settings;
-    void setStereoMode();
     void restartGlobe();
     bool globeRunning();
     void showMessageBox( QString text);
+    //! Init dialog from osg/DisplaySettings
+    void getStereoConfig();
+    //! Set osg/DisplaySettings
+    void setStereoConfig();
+    //! Init dialog from settings
+    void loadStereoConfig();
+    //! Save settings
+    void saveStereoConfig();
 
   private slots:
     void on_buttonBox_accepted();

src/plugins/globe/globe_plugin_dialog_guibase.ui

@@ -34,7 +34,7 @@
    <item>
     <widget class="QTabWidget" name="tabWidget">
      <property name="currentIndex">
-      <number>1</number>
+      <number>0</number>
      </property>
      <widget class="QWidget" name="elevation">
       <attribute name="title">
@@ -212,15 +212,15 @@
        <item row="1" column="0">
         <widget class="QLabel" name="label">
          <property name="text">
-          <string>SCREEN_DISTANCE</string>
+          <string>Screen distance</string>
          </property>
          <property name="buddy">
-          <cstring>xxxx</cstring>
+          <cstring>screenDistance</cstring>
          </property>
         </widget>
        </item>
        <item row="1" column="2">
-        <widget class="QDoubleSpinBox" name="xxxx"/>
+        <widget class="QDoubleSpinBox" name="screenDistance"/>
        </item>
        <item row="2" column="0">
         <widget class="QLabel" name="label_3">

src/plugins/globe/qgsosgviewer.cpp

@@ -28,7 +28,6 @@ QgsGLWidgetAdapter::QgsGLWidgetAdapter( QWidget * parent, const char * name, con
     QGLWidget(parent, shareWidget, f)
 {
     _gw = new osgViewer::GraphicsWindowEmbedded(0,0,width(),height());
-    setStereoMode();
     setFocusPolicy(Qt::ClickFocus);
     setMouseTracking ( true );
 }
@@ -86,46 +85,3 @@ void QgsGLWidgetAdapter::wheelEvent(QWheelEvent *event)
 {
     _gw->getEventQueue()->mouseScroll((event->delta()>0) ? osgGA::GUIEventAdapter::SCROLL_DOWN : osgGA::GUIEventAdapter::SCROLL_UP);
 }
-
-void QgsGLWidgetAdapter::setStereoMode()
-{
-  setStereoMode(settings.value( "/Plugin-Globe/stereoMode", "OFF" ).toString());
-}
-
-void QgsGLWidgetAdapter::setStereoMode(QString stereoMode)
-{
-  settings.setValue( "/Plugin-Globe/stereoMode", stereoMode );
-  if("OFF" == stereoMode)
-  {
-    osg::DisplaySettings::instance()->setStereo( false );
-    }
-  else
-  {
-    osg::DisplaySettings::instance()->setStereo( true );
-    
-    if("ANAGLYPHIC" == stereoMode)
-    {
-      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::ANAGLYPHIC );
-    }
-    else if("VERTICAL_SPLIT" == stereoMode)
-    {
-      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::VERTICAL_SPLIT );
-    }
-    else if("HORIZONTAL_SPLIT" == stereoMode)
-    {
-      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::HORIZONTAL_SPLIT );
-    }
-    else if("QUAD_BUFFER" == stereoMode)
-    {
-      osg::DisplaySettings::instance()->setStereoMode( osg::DisplaySettings::QUAD_BUFFER );
-    }
-    else
-    {
-      //should never get here
-      settings.setValue( "/Plugin-Globe/stereoMode", "ANAGLYPHIC" );
-      QMessageBox msgBox;
-      msgBox.setText("This stereo mode has not been implemented yet. Defaulting to ANAGLYPHIC");
-      msgBox.exec();
-    }
-  }
-}

src/plugins/globe/qgsosgviewer.h

@@ -20,12 +20,10 @@
 #define QGS_OSG_VIEWER_H
 
 #include <osgViewer/Viewer>
-#include <osgViewer/CompositeViewer>
 
 #include <QtOpenGL/QGLWidget>
 #include <QtGui/QKeyEvent>
 #include <QtCore/QTimer>
-#include <QSettings>
 
 using Qt::WindowFlags;
 
@@ -39,9 +37,6 @@ class QgsGLWidgetAdapter : public QGLWidget
 
         osgViewer::GraphicsWindow* getGraphicsWindow() { return _gw.get(); }
         const osgViewer::GraphicsWindow* getGraphicsWindow() const { return _gw.get(); }
-        
-        void setStereoMode();
-        void setStereoMode(QString stereoMode);
 
     protected:
 
@@ -56,9 +51,6 @@ class QgsGLWidgetAdapter : public QGLWidget
 
         osg::ref_ptr<osgViewer::GraphicsWindowEmbedded> _gw;
 
-    private:
-    
-        QSettings settings;
 };