1. wxInputHandler now knows about wxRenderer and uses it

2. wxInputHandler::OnMouseMove() added
3. wxGTKRenderer (almost) draws scrollbars
4. scrollbar mouse handling starts to work


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/wxUNIVERSAL@8160 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/univ/inphand.h

@@ -28,10 +28,23 @@ class WXDLLEXPORT wxInputHandler
 public:
     // map a keyboard event to one or more actions (pressed == TRUE if the key
     // was pressed, FALSE if released)
-    virtual wxControlActions Map(const wxKeyEvent& event, bool pressed) = 0;
+    virtual wxControlActions Map(wxControl *control,
+                                 const wxKeyEvent& event,
+                                 bool pressed) = 0;
 
-    // map a mouse event to one or more actions
-    virtual wxControlActions Map(const wxMouseEvent& event) = 0;
+    // map a mouse (click) event to one or more actions
+    virtual wxControlActions Map(wxControl *control,
+                                 const wxMouseEvent& event) = 0;
+
+    // do something with mouse move/enter/leave: unlike the Map() functions,
+    // this doesn't translate the event into an action but, normally, uses the
+    // renderer directly to change the controls appearance as needed
+    //
+    // this is faster than using Map() which is important for mouse move
+    // events as they occur often and in a quick succession
+    //
+    // return TRUE to refresh the control, FALSE otherwise
+    virtual bool OnMouseMove(wxControl *control, const wxMouseEvent& event);
 
     // virtual dtor for any base class
     virtual ~wxInputHandler();