Tweaks for pick callback cursors.

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

diff --git a/simgear/scene/util/SGPickCallback.hxx b/simgear/scene/util/SGPickCallback.hxx
index a8bf82cbe80de676371f2d9b403f0c3b299f9c23..33ab28adab6e529059ed1d7064eff06da1926966 100644 (file)
--- a/simgear/scene/util/SGPickCallback.hxx
+++ b/simgear/scene/util/SGPickCallback.hxx
@@ -22,26 +22,62 @@
 #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,
+    PriorityScenery = 3
+  };
+
   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 update(double dt, int keyModState)
   { }
-  virtual void buttonReleased(void)
+    
+  virtual void buttonReleased(int keyModState)
   { }
+
+  virtual void mouseMoved(const osgGA::GUIEventAdapter* event)
+  { }
+
+  virtual bool hover(const osg::Vec2d& windowPos, const Info& info)
+  {  return false; }
+
+  virtual Priority getPriority() const
+  { return _priority; }
+  
+  /**
+   * retrieve the name of the cursor to user when hovering this pickable
+   * object. Mapping is undefined, since SimGear doesn't know about cursors.
+   */
+  virtual std::string getCursor() const
+  { return std::string(); }
+
+private:
+  Priority _priority;
 };
 
 struct SGSceneryPick {