getViewer() function of DisplayableInterface set public.

Interfaces/DisplayableInterface.h

@@ -49,9 +49,6 @@ private:
     }
 
 protected:
-    /** Recover the current viewer to which this Displayable is associated. */
-    inline GLViewer*            getViewer() const                       { return m_Viewer; }
-
     inline QString              getResourceContent( const QString &resourceName ) const
     {
         QString content;
@@ -102,6 +99,8 @@ public:
     inline                      DisplayableInterface( GenericUIData *m, GLViewer *v ) : QObject(), m_Data(m), m_Viewer(v), m_IsAnimationPaused(false) {}
     virtual                     ~DisplayableInterface() {}
 
+    /** Recover the current viewer to which this Displayable is associated. */
+    inline GLViewer*            getViewer() const                       { return m_Viewer; }
     /** Recover the source data from which this Displayable has been created. */
     inline GenericUIData*       getSource() const                       { return m_Data; }
     /** Recover the current state of the set of display parameters. */