SIGNAL/SLOT added to GLViewer in order to control point size modifications.

GLViewer/GLViewer.cpp

@@ -127,6 +127,14 @@ GLViewer::GLViewer( DisplayDoF dof,
 
 GLViewer::~GLViewer()
 {
+    // Avoid the destruction of UIParamSet objects.
+    for( auto m : m_Displayables )
+        if( m.first->GetDisplayOptions() )
+        {
+            m_DisplayOptionsLayout->removeWidget( m.first->GetDisplayOptions() );
+            m.first->GetDisplayOptions()->setParent( NULL );
+        }
+
     for( std::vector<SelectionTool*>::iterator tool=m_SelectionTools.begin(); tool!=m_SelectionTools.end(); ++tool )
         delete *tool;
 
@@ -2413,6 +2421,7 @@ void GLViewer::setShiftSpeedFactor( const float shiftSpeedFactor )
 void GLViewer::increasePointSize()
 {
     ++ m_View.pointSize;
+    emit pointSizeChanged( m_View.pointSize );
     update();
 }
 
@@ -2422,6 +2431,18 @@ void GLViewer::decreasePointSize()
     if( m_View.pointSize > 1 )
     {
         -- m_View.pointSize;
+        emit pointSizeChanged( m_View.pointSize );
+        update();
+    }
+}
+
+
+void GLViewer::setPointSize( unsigned int size )
+{
+    if( size >= 1  &&  size != m_View.pointSize )
+    {
+        m_View.pointSize = size;
+        emit pointSizeChanged( m_View.pointSize );
         update();
     }
 }

GLViewer/GLViewer.h

@@ -354,6 +354,7 @@ signals:
     void                                        lightTrackingToggled( const bool trackingEnabled );
     void                                        keyPressed( QKeyEvent *evt );
     void                                        dataSelected( GenericUIData *d, Qt::KeyboardModifiers modifiers );
+    void                                        pointSizeChanged( unsigned int size );
 
     /************\
     | QT slot(s) |
@@ -370,6 +371,7 @@ public slots:
 
     void                                        increasePointSize();
     void                                        decreasePointSize();
+    void                                        setPointSize( unsigned int size );
 
     void                                        setFocusPoint( const QVector3D& p );
     void                                        setDistToFocusPoint( const float d );