Support motion-tracking in pick callbacks.

[simgear.git] / simgear / scene / util / SGPickCallback.hxx

diff --git a/simgear/scene/util/SGPickCallback.hxx b/simgear/scene/util/SGPickCallback.hxx
index baaef4366bb652877afb3ab22ad6f6cc1b55edda..5dac95245386c6cb629b49b8b4ace6f4179f70e3 100644 (file)
--- a/simgear/scene/util/SGPickCallback.hxx
+++ b/simgear/scene/util/SGPickCallback.hxx
@@ -22,25 +22,53 @@
 #ifndef SG_SCENE_PICKCALLBACK_HXX
 #define SG_SCENE_PICKCALLBACK_HXX
 
+#include <osg/Vec2d>
+   
 #include <simgear/structure/SGReferenced.hxx>
+#include <simgear/structure/SGSharedPtr.hxx>
 #include <simgear/math/SGMath.hxx>
 
+namespace osgGA { class GUIEventAdapter; }
+
 // Used to implement scenery interaction.
 // The interface is still under development
 class SGPickCallback : public SGReferenced {
 public:
+  enum Priority {
+    PriorityGUI = 0,
+    PriorityPanel = 1,
+    PriorityOther = 2
+  };
+
   struct Info {
     SGVec3d wgs84;
     SGVec3d local;
   };
 
+  SGPickCallback(Priority priority = PriorityOther) :
+    _priority(priority)
+  { }
+
   virtual ~SGPickCallback() {}
-  virtual bool buttonPressed(int button, const Info& info)
+  virtual bool buttonPressed(int button, const osgGA::GUIEventAdapter* event, const Info& info)
   { return false; }
+  
   virtual void update(double dt)
   { }
   virtual void buttonReleased(void)
   { }
+
+  virtual void mouseMoved(const osgGA::GUIEventAdapter* event)
+  { }
+
+  virtual bool hover(const osg::Vec2d& windowPos, const Info& info)
+  {  return false; }
+
+  Priority getPriority() const
+  { return _priority; }
+
+private:
+  Priority _priority;
 };
 
 struct SGSceneryPick {