Added help support for display help on screen to osgProducer::Viewer.

include/osgGA/CameraManipulator

@@ -35,6 +35,9 @@ class OSGGA_EXPORT CameraManipulator : public GUIEventHandler
 {
 public:
 
+
+        virtual const char* className() { return "CameraManipulator"; }
+
         /** Attach a camera to the manipulator to be used for specifying view.*/
         virtual void setCamera(osg::Camera*);
 

include/osgGA/DriveManipulator

@@ -31,8 +31,6 @@ class OSGGA_EXPORT DriveManipulator : public CameraManipulator
 
         DriveManipulator();
 
-        virtual ~DriveManipulator();
-
         virtual const char* className() { return "Drive"; }
 
         virtual void setNode(osg::Node*);
@@ -52,6 +50,8 @@ class OSGGA_EXPORT DriveManipulator : public CameraManipulator
 
     protected:
 
+        virtual ~DriveManipulator();
+
         /** Reset the internal GUIEvent stack.*/
         void flushMouseEventStack();
 

include/osgGA/FlightManipulator

@@ -30,7 +30,6 @@ class OSGGA_EXPORT FlightManipulator : public CameraManipulator
     public:
 
         FlightManipulator();
-        virtual ~FlightManipulator();
 
         virtual const char* className() { return "Flight"; }
 
@@ -59,6 +58,8 @@ class OSGGA_EXPORT FlightManipulator : public CameraManipulator
 
     protected:
 
+        virtual ~FlightManipulator();
+
         /** Reset the internal GUIEvent stack.*/
         void flushMouseEventStack();
         /** Add the current mouse GUIEvent to internal stack.*/

include/osgGA/TrackballManipulator

@@ -23,7 +23,6 @@ class OSGGA_EXPORT TrackballManipulator : public CameraManipulator
     public:
 
         TrackballManipulator();
-        virtual ~TrackballManipulator();
 
         virtual const char* className() { return "Trackball"; }
 
@@ -54,6 +53,8 @@ class OSGGA_EXPORT TrackballManipulator : public CameraManipulator
 
     protected:
 
+        virtual ~TrackballManipulator();
+
         /** Reset the internal GUIEvent stack.*/
         void flushMouseEventStack();
         /** Add the current mouse GUIEvent to internal stack.*/