More work on Canvas event handling/adapt for simgear changes

src/Canvas/FGCanvasSystemAdapter.cxx

@@ -99,4 +99,14 @@ namespace canvas
     getNasalSys()->gcRelease(key);
   }
 
+  //------------------------------------------------------------------------------
+  naRef FGCanvasSystemAdapter::callMethod( naRef code,
+                                           naRef self,
+                                           int argc,
+                                           naRef* args,
+                                           naRef locals )
+  {
+    return getNasalSys()->callMethod(code, self, argc, args, locals);
+  }
+
 }

src/Canvas/FGCanvasSystemAdapter.hxx

@@ -23,6 +23,11 @@ namespace canvas
 
       virtual int gcSave(naRef r);
       virtual void gcRelease(int key);
+      virtual naRef callMethod( naRef code,
+                                naRef self,
+                                int argc,
+                                naRef* args,
+                                naRef locals );
   };
 }
 

src/Canvas/gui_mgr.cxx

@@ -209,9 +209,6 @@ bool GUIMgr::handleEvent(const osgGA::GUIEventAdapter& ea)
     case osgGA::GUIEventAdapter::MOVE:
     case osgGA::GUIEventAdapter::SCROLL:
       return handleMouse(ea);
-//        case osgGA::GUIEventAdapter::MOVE:
-//          std::cout << "MOVE" << std::endl;
-//          break;
     case osgGA::GUIEventAdapter::RESIZE:
       handleResize( ea.getWindowX(),
                     ea.getWindowY(),
@@ -260,18 +257,25 @@ bool GUIMgr::handleMouse(const osgGA::GUIEventAdapter& ea)
   if( !_transform->getNumChildren() )
     return false;
 
-  simgear::canvas::MouseEvent event( ea.getEventType() );
+  namespace sc = simgear::canvas;
+  sc::MouseEventPtr event(new sc::MouseEvent);
 
-  event.x = 0.5 * (ea.getXnormalized() + 1) * _width + 0.5;
-  event.y = 0.5 * (ea.getYnormalized() + 1) * _height + 0.5;
+  event->pos.x() = 0.5 * (ea.getXnormalized() + 1) * _width + 0.5;
+  event->pos.y() = 0.5 * (ea.getYnormalized() + 1) * _height + 0.5;
   if(    ea.getMouseYOrientation()
       != osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS )
-    event.y = _height - event.y;
+    event->pos.y() = _height - event->pos.y();
 
-  event.button = ea.getButton();
-  event.state = ea.getButtonMask();
-  event.mod = ea.getModKeyMask();
-  event.scroll = ea.getScrollingMotion();
+  event->delta.x() = event->pos.x() - _last_x;
+  event->delta.y() = event->pos.y() - _last_y;
+
+  _last_x = event->pos.x();
+  _last_y = event->pos.y();
+
+  event->button = ea.getButton();
+  event->state = ea.getButtonMask();
+  event->mod = ea.getModKeyMask();
+  //event->scroll = ea.getScrollingMotion();
 
   canvas::WindowPtr window_at_cursor;
   for( int i = _transform->getNumChildren() - 1; i >= 0; --i )
@@ -287,7 +291,7 @@ bool GUIMgr::handleMouse(const osgGA::GUIEventAdapter& ea)
       canvas::WindowPtr window =
         static_cast<WindowUserData*>(layer->getChild(j)->getUserData())
           ->window.lock();
-      if( window->getRegion().contains(event.x, event.y) )
+      if( window->getRegion().contains(event->pos.x(), event->pos.y()) )
       {
         window_at_cursor = window;
         break;
@@ -303,19 +307,38 @@ bool GUIMgr::handleMouse(const osgGA::GUIEventAdapter& ea)
   {
     case osgGA::GUIEventAdapter::PUSH:
       _last_push = window_at_cursor;
+      event->type = sc::Event::MOUSE_DOWN;
       break;
-    case osgGA::GUIEventAdapter::SCROLL:
+//    case osgGA::GUIEventAdapter::SCROLL:
+//      event->type = sc::Event::SCROLL;
+//      break;
     case osgGA::GUIEventAdapter::MOVE:
-      break;
+    {
+      canvas::WindowPtr last_mouse_over = _last_mouse_over.lock();
+      if( last_mouse_over != window_at_cursor && last_mouse_over )
+      {
+        sc::MouseEventPtr move_event( new sc::MouseEvent(*event) );
+        move_event->type = sc::Event::MOUSE_LEAVE;
 
+        // Let the event position be always relative to the top left window corner
+        move_event->pos.x() -= last_mouse_over->getRegion().x();
+        move_event->pos.y() -= last_mouse_over->getRegion().y();
+
+        last_mouse_over->handleMouseEvent(move_event);
+      }
+      _last_mouse_over = window_at_cursor;
+      event->type = sc::Event::MOUSE_MOVE;
+      break;
+    }
     case osgGA::GUIEventAdapter::RELEASE:
       target_window = _last_push.lock();
       _last_push.reset();
+      event->type = sc::Event::MOUSE_UP;
       break;
 
-    case osgGA::GUIEventAdapter::DRAG:
-      target_window = _last_push.lock();
-      break;
+//    case osgGA::GUIEventAdapter::DRAG:
+//      target_window = _last_push.lock();
+//      break;
 
     default:
       return false;
@@ -323,15 +346,9 @@ bool GUIMgr::handleMouse(const osgGA::GUIEventAdapter& ea)
 
   if( target_window )
   {
-    event.dx = event.x - _last_x;
-    event.dy = event.y - _last_y;
-
-    _last_x = event.x;
-    _last_y = event.y;
-
     // Let the event position be always relative to the top left window corner
-    event.x -= target_window->getRegion().x();
-    event.y -= target_window->getRegion().y();
+    event->pos.x() -= target_window->getRegion().x();
+    event->pos.y() -= target_window->getRegion().y();
 
     return target_window->handleMouseEvent(event);
   }

src/Canvas/gui_mgr.hxx

@@ -55,7 +55,8 @@ class GUIMgr:
     simgear::PropertyObject<int>        _width,
                                         _height;
 
-    canvas::WindowWeakPtr _last_push;
+    canvas::WindowWeakPtr _last_push,
+                          _last_mouse_over;
     float _last_x,
           _last_y;
 

src/Canvas/window.cxx

@@ -91,7 +91,7 @@ namespace canvas
   }
 
   //----------------------------------------------------------------------------
-  bool Window::handleMouseEvent(const simgear::canvas::MouseEvent& event)
+  bool Window::handleMouseEvent(const simgear::canvas::MouseEventPtr& event)
   {
     if( !getCanvas().expired() )
       return getCanvas().lock()->handleMouseEvent(event);

src/Canvas/window.hxx

@@ -45,7 +45,7 @@ namespace canvas
       void setCanvas(simgear::canvas::CanvasPtr canvas);
       simgear::canvas::CanvasWeakPtr getCanvas() const;
 
-      bool handleMouseEvent(const simgear::canvas::MouseEvent& event);
+      bool handleMouseEvent(const simgear::canvas::MouseEventPtr& event);
 
     protected:
 

src/Scripting/NasalCanvas.cxx

@@ -33,6 +33,7 @@
 
 #include <simgear/canvas/Canvas.hxx>
 #include <simgear/canvas/elements/CanvasElement.hxx>
+#include <simgear/canvas/MouseEvent.hxx>
 
 #include <simgear/nasal/cppbind/from_nasal.hxx>
 #include <simgear/nasal/cppbind/to_nasal.hxx>
@@ -49,6 +50,8 @@ naRef elementGetNode(naContext c, Element& element)
   return propNodeGhostCreate(c, element.getProps());
 }
 
+typedef nasal::Ghost<sc::EventPtr> NasalEvent;
+typedef nasal::Ghost<sc::MouseEventPtr> NasalMouseEvent;
 typedef nasal::Ghost<sc::CanvasPtr> NasalCanvas;
 typedef nasal::Ghost<sc::ElementPtr> NasalElement;
 typedef nasal::Ghost<sc::GroupPtr> NasalGroup;
@@ -145,27 +148,28 @@ static naRef f_getCanvas(naContext c, naRef me, int argc, naRef* args)
   return NasalCanvas::create(c, canvas);
 }
 
-naRef f_canvasCreateGroup( sc::Canvas& canvas,
-                           naContext c,
-                           int argc,
-                           naRef* args )
+naRef f_canvasCreateGroup(sc::Canvas& canvas, const nasal::CallContext& ctx)
 {
   std::string name;
-  if( argc > 0 )
-    name = nasal::from_nasal<std::string>(c, args[0]);
+  if( ctx.argc > 0 )
+    name = nasal::from_nasal<std::string>(ctx.c, ctx.args[0]);
 
-  return NasalGroup::create(c, canvas.createGroup(name));
+  return NasalGroup::create(ctx.c, canvas.createGroup(name));
 }
 
 naRef initNasalCanvas(naRef globals, naContext c, naRef gcSave)
 {
+  NasalEvent::init("canvas.Event");
+  NasalMouseEvent::init("canvas.MouseEvent")
+    .bases<NasalEvent>();
   NasalCanvas::init("Canvas")
     .member("_node_ghost", &elementGetNode<sc::Canvas>)
     .member("size_x", &sc::Canvas::getSizeX)
     .member("size_y", &sc::Canvas::getSizeY)
     .method_func<&f_canvasCreateGroup>("createGroup");
   NasalElement::init("canvas.Element")
-    .member("_node_ghost", &elementGetNode<sc::Element>);
+    .member("_node_ghost", &elementGetNode<sc::Element>)
+    .method<&sc::Element::addEventListener>("addEventListener");
   NasalGroup::init("canvas.Group")
     .bases<NasalElement>();