Merged upstream changes.

code/nel/include/nel/gui/ctrl_base.h

@@ -68,9 +68,7 @@ namespace NLGUI
 		// special parse
 		virtual bool parse(xmlNodePtr cur, CInterfaceGroup *parentGroup);
 
-
-		/// Handle all events (implemented by derived classes) (return true to signal event handled)
-		virtual bool		handleEvent (const NLGUI::CEventDescriptor &event);
+		bool handleEvent (const NLGUI::CEventDescriptor &event);
 
 		virtual CCtrlBase	*getSubCtrl (sint32 /* x */, sint32 /* y */) { return this; }
 

code/nel/include/nel/gui/ctrl_text_button.h

@@ -42,6 +42,7 @@ namespace NLGUI
 
 		/// Constructor
 		CCtrlTextButton(const TCtorParam &param);
+		~CCtrlTextButton();
 
 		std::string getProperty( const std::string &name ) const;
 		void setProperty( const std::string &name, const std::string &value );
@@ -123,6 +124,9 @@ namespace NLGUI
 			REFLECT_LUA_METHOD("getViewText", luaGetViewText)
 		REFLECT_EXPORT_END
 
+		void onRemoved();
+		void onWidgetDeleted( CInterfaceElement *e );
+
 	protected:
 
 		enum	{NumTexture= 3};

code/nel/include/nel/gui/editor_selection_watcher.h

@@ -0,0 +1,30 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <string>
+
+namespace NLGUI
+{
+	/// Watches the currently selected GUI widget
+	class IEditorSelectionWatcher
+	{
+	public:
+
+		/// Notifies the watcher about the change
+		virtual void selectionChanged( std::string &newSelection ) = 0;
+	};
+}
+

code/nel/include/nel/gui/interface_element.h

@@ -70,6 +70,14 @@ namespace NLGUI
 	{
 	public:
 
+		/// Watches CInterfaceElement deletions
+		class IDeletionWatcher
+		{
+		public:
+			IDeletionWatcher(){}
+			virtual ~IDeletionWatcher(){}
+			virtual void onDeleted( const std::string &name ){}
+		};
 
 		enum EStrech
 		{
@@ -424,6 +432,8 @@ namespace NLGUI
 
 		void drawHotSpot(THotSpot hs, NLMISC::CRGBA col);
 
+		void drawHighlight();
+
 		// Returns 'true' if that element can be downcasted to a view
 		virtual bool isView() const { return false; }
 
@@ -473,6 +483,7 @@ namespace NLGUI
 		bool isInGroup( CInterfaceGroup *group );
 
 		static void setEditorMode( bool b ){ editorMode = b; }
+		static bool getEditorMode(){ return editorMode; }
 
 		void setEditorSelected( bool b ){ editorSelected = b; }
 		bool isEditorSelected() const{ return editorSelected; }
@@ -483,6 +494,19 @@ namespace NLGUI
 		void setSerializable( bool b ){ serializable = b; }
 		bool IsSerializable() const{ return serializable; }
 
+		/// Called when the widget is removed from it's parent group
+		virtual void onRemoved(){}
+
+		/// Registers a deletion watcher
+		static void registerDeletionWatcher( IDeletionWatcher *watcher );
+
+		/// Unregisters a deletion watcher
+		static void unregisterDeletionWatcher( IDeletionWatcher *watcher );
+
+		/// Called when the widget is deleted,
+		/// so other widgets in the group can check if it belongs to them
+		virtual void onWidgetDeleted( CInterfaceElement *e ){}
+
 	protected:
 
 		bool editorSelected;
@@ -543,6 +567,11 @@ namespace NLGUI
 		void parseSizeRef(const char *sizeRefStr, sint32 &sizeref, sint32 &sizeDivW, sint32 &sizeDivH);
 
 	private:
+		/// Notifies the deletion watchers that this interface element is being deleted
+		void notifyDeletionWatchers();
+		
+		static std::vector< IDeletionWatcher* > deletionWatchers;
+
 		//void	snapSize();
 		bool serializable;
 

code/nel/include/nel/gui/interface_group.h

@@ -322,6 +322,8 @@ namespace NLGUI
 		// Return the current Depth, with no ZBias applied.
 		float getDepthForZSort() const { return _DepthForZSort; }
 
+		void onWidgetDeleted( CInterfaceElement *e );
+
 	protected:
 
 		void makeNewClip (sint32 &oldClipX, sint32 &oldClipY, sint32 &oldClipW, sint32 &oldClipH);

code/nel/include/nel/gui/view_base.h

@@ -25,6 +25,7 @@
 
 namespace NLGUI
 {
+	class CEventDescriptor;
 
 	class CViewBase : public CInterfaceElement
 	{
@@ -76,6 +77,9 @@ namespace NLGUI
 
 		// special for mouse over : return true and fill the name of the cursor to display
 		virtual bool getMouseOverShape(std::string &/* texName */, uint8 &/* rot */, NLMISC::CRGBA &/* col */) { return false; }
+		
+		/// Handle all events (implemented by derived classes) (return true to signal event handled)
+		virtual bool handleEvent (const NLGUI::CEventDescriptor &evnt);
 
 	};
 

code/nel/include/nel/gui/widget_manager.h

@@ -47,6 +47,7 @@ namespace NLGUI
 	class CInterfaceOptions;
 	class CInterfaceAnim;
 	class CProcedure;
+	class IEditorSelectionWatcher;
 
 	/**
 	 GUI Widget Manager
@@ -341,6 +342,7 @@ namespace NLGUI
 		/**
 		 * Capture
 		 */
+		CViewBase *getCapturedView(){ return _CapturedView; }
 		CCtrlBase *getCapturePointerLeft() { return _CapturePointerLeft; }
 		CCtrlBase *getCapturePointerRight() { return _CapturePointerRight; }
 		CCtrlBase *getCaptureKeyboard() { return _CaptureKeyboard; }
@@ -483,7 +485,11 @@ namespace NLGUI
 
 		IParser* getParser() const{ return parser; }
 
+		std::string& getCurrentEditorSelection(){ return currentEditorSelection; }
 		void setCurrentEditorSelection( const std::string &name );
+		void notifySelectionWatchers();
+		void registerSelectionWatcher( IEditorSelectionWatcher *watcher );
+		void unregisterSelectionWatcher( IEditorSelectionWatcher *watcher );
 				
 	private:
 		CWidgetManager();
@@ -510,6 +516,8 @@ namespace NLGUI
 		NLMISC::CRefPtr<CCtrlBase>	_CapturePointerLeft;
 		NLMISC::CRefPtr<CCtrlBase>	_CapturePointerRight;
 
+		NLMISC::CRefPtr< CViewBase > _CapturedView;
+
 		// What is under pointer
 		std::vector< CViewBase* > _ViewsUnderPointer;
 		std::vector< CCtrlBase* > _CtrlsUnderPointer;
@@ -561,6 +569,8 @@ namespace NLGUI
 
 		std::vector< INewScreenSizeHandler* > newScreenSizeHandlers;
 		std::vector< IOnWidgetsDrawnHandler* > onWidgetsDrawnHandlers;
+		std::vector< IEditorSelectionWatcher* > selectionWatchers;
+		
 
 		std::string currentEditorSelection;
 	};

code/nel/src/gui/ctrl_base.cpp

@@ -37,6 +37,9 @@ namespace NLGUI
 	// ***************************************************************************
 	bool CCtrlBase::handleEvent(const NLGUI::CEventDescriptor &event)
 	{
+		if( CViewBase::handleEvent( event ) )
+			return true;
+
 		if (event.getType() == NLGUI::CEventDescriptor::system)
 		{
 			NLGUI::CEventDescriptorSystem &eds = (NLGUI::CEventDescriptorSystem&)event;

code/nel/src/gui/ctrl_base_button.cpp

@@ -668,12 +668,6 @@ namespace NLGUI
 				if (CWidgetManager::getInstance()->getCapturePointerLeft() != this)
 					return false;
 
-				if( editorMode )
-				{
-					CWidgetManager::getInstance()->setCurrentEditorSelection( getId() );
-					return true;
-				}
-
 				if (_LeftDblClickHandled)  // no effect on mouse up after double click has been handled
 				{
 					_LeftDblClickHandled = false;

code/nel/src/gui/ctrl_button.cpp

@@ -357,7 +357,7 @@ namespace NLGUI
 
 
 
-		if ( ( _Over && !editorMode ) || editorSelected )
+		if ( ( _Over && !editorMode ) )
 		{
 
 			if( !editorMode && (lastOver == false) && (_AHOnOver != NULL))

code/nel/src/gui/ctrl_text_button.cpp

@@ -60,6 +60,17 @@ namespace NLGUI
 		_ForceTextOver = false;
 	}
 
+	CCtrlTextButton::~CCtrlTextButton()
+	{
+		if( _ViewText != NULL )
+		{
+			if( _Parent != NULL )
+				_Parent->delView( _ViewText, true );
+			delete _ViewText;
+			_ViewText = NULL;
+		}
+	}
+
 	std::string CCtrlTextButton::getProperty( const std::string &name ) const
 	{
 		std::string prop;
@@ -111,7 +122,10 @@ namespace NLGUI
 		else
 		if( name == "hardtext" )
 		{
-			return _ViewText->getText().toString();
+			if( _ViewText != NULL )
+				return _ViewText->getText().toString();
+			else
+				return std::string( "" );
 		}
 		else
 		if( name == "text_y" )
@@ -126,7 +140,10 @@ namespace NLGUI
 		else
 		if( name == "text_underlined" )
 		{
-			return toString( _ViewText->getUnderlined() );
+			if( _ViewText != NULL )
+				return toString( _ViewText->getUnderlined() );
+			else
+				return std::string( "" );
 		}
 		else
 		if( name == "text_posref" )
@@ -267,7 +284,8 @@ namespace NLGUI
 		else
 		if( name == "hardtext" )
 		{
-			_ViewText->setText( value );
+			if( _ViewText != NULL )
+				_ViewText->setText( value );
 			return;
 		}
 		else
@@ -290,8 +308,10 @@ namespace NLGUI
 		if( name == "text_underlined" )
 		{
 			bool b;
-			if( fromString( value, b ) )
-				_ViewText->setUnderlined( b );
+			if( _ViewText != NULL )
+				if( fromString( value, b ) )
+					_ViewText->setUnderlined( b );
+
 			return;
 		}
 		else
@@ -764,8 +784,7 @@ namespace NLGUI
 		CCtrlBase *capturePointerLeft = CWidgetManager::getInstance()->getCapturePointerLeft();
 
 		// *** Draw Over
-		if( editorSelected ||
-		    ( !editorMode && _Over && (_OverWhenPushed || !(_Pushed ||  capturePointerLeft == this ) ) ) 
+		if( ( !editorMode && _Over && (_OverWhenPushed || !(_Pushed ||  capturePointerLeft == this ) ) ) 
 		)
 		{
 			if( !editorMode && (lastOver == false) && (_AHOnOver != NULL) )
@@ -801,32 +820,35 @@ namespace NLGUI
 			}
 		}
 		// Setup ViewText color
-		if ( pTxId==_TextureIdNormal || editorMode )
+		if( _ViewText != NULL )
 		{
-			if(_TextHeaderColor)	viewTextColor.A=  _TextColorNormal.A;
-			else					viewTextColor= _TextColorNormal;
-			_ViewText->setColor(viewTextColor);
-			_ViewText->setShadowColor(_TextShadowColorNormal);
-			_ViewText->setModulateGlobalColor(_TextModulateGlobalColorNormal);
+			if ( pTxId==_TextureIdNormal || editorMode )
+			{
+				if(_TextHeaderColor)	viewTextColor.A=  _TextColorNormal.A;
+				else					viewTextColor= _TextColorNormal;
+				_ViewText->setColor(viewTextColor);
+				_ViewText->setShadowColor(_TextShadowColorNormal);
+				_ViewText->setModulateGlobalColor(_TextModulateGlobalColorNormal);
+			}
+			else if ( pTxId==_TextureIdPushed )
+			{
+				if(_TextHeaderColor)	viewTextColor.A=  _TextColorPushed.A;
+				else					viewTextColor= _TextColorPushed;
+				_ViewText->setColor(viewTextColor);
+				_ViewText->setShadowColor(_TextShadowColorPushed);
+				_ViewText->setModulateGlobalColor(_TextModulateGlobalColorPushed);
+			}
+			else if ( pTxId==_TextureIdOver )
+			{
+				if(_TextHeaderColor)	viewTextColor.A=  _TextColorOver.A;
+				else					viewTextColor= _TextColorOver;
+				_ViewText->setColor(viewTextColor);
+				_ViewText->setShadowColor(_TextShadowColorOver);
+				_ViewText->setModulateGlobalColor(_TextModulateGlobalColorOver);
+			}
+			if(getFrozen() && getFrozenHalfTone())
+				_ViewText->setAlpha(_ViewText->getAlpha()>>2);
 		}
-		else if ( pTxId==_TextureIdPushed )
-		{
-			if(_TextHeaderColor)	viewTextColor.A=  _TextColorPushed.A;
-			else					viewTextColor= _TextColorPushed;
-			_ViewText->setColor(viewTextColor);
-			_ViewText->setShadowColor(_TextShadowColorPushed);
-			_ViewText->setModulateGlobalColor(_TextModulateGlobalColorPushed);
-		}
-		else if ( pTxId==_TextureIdOver )
-		{
-			if(_TextHeaderColor)	viewTextColor.A=  _TextColorOver.A;
-			else					viewTextColor= _TextColorOver;
-			_ViewText->setColor(viewTextColor);
-			_ViewText->setShadowColor(_TextShadowColorOver);
-			_ViewText->setModulateGlobalColor(_TextModulateGlobalColorOver);
-		}
-		if(getFrozen() && getFrozenHalfTone())
-			_ViewText->setAlpha(_ViewText->getAlpha()>>2);
 	}
 
 
@@ -958,6 +980,19 @@ namespace NLGUI
 	}
 
 	// ***************************************************************************
+	void CCtrlTextButton::onRemoved()
+	{
+		if( _ViewText != NULL )
+		{
+			if( _Parent != NULL )
+				_Parent->delView( _ViewText, true );
+		}
+	}
 
+	void CCtrlTextButton::onWidgetDeleted( CInterfaceElement *e )
+	{
+		if( e == _ViewText )
+			_ViewText = NULL;
+	}
 }
 

code/nel/src/gui/interface_element.cpp

@@ -32,6 +32,7 @@ using namespace NLMISC;
 namespace NLGUI
 {
 	bool CInterfaceElement::editorMode = false;
+	std::vector< CInterfaceElement::IDeletionWatcher* > CInterfaceElement::deletionWatchers;
 
 	// ------------------------------------------------------------------------------------------------
 	CInterfaceElement::~CInterfaceElement()
@@ -44,6 +45,13 @@ namespace NLGUI
 			}
 			delete _Links;
 		}
+		
+		if( editorMode )
+		{
+			notifyDeletionWatchers();
+			if( _Parent != NULL )
+				_Parent->onWidgetDeleted( this );
+		}
 	}
 
 	// ------------------------------------------------------------------------------------------------
@@ -1300,6 +1308,11 @@ namespace NLGUI
 
 	}
 
+	void CInterfaceElement::drawHighlight()
+	{
+		CViewRenderer::getInstance()->drawWiredQuad( _XReal, _YReal, _WReal, _HReal );
+	}
+
 	// ***************************************************************************
 	void CInterfaceElement::invalidateContent()
 	{
@@ -1546,6 +1559,36 @@ namespace NLGUI
 		}
 	}
 
+	void CInterfaceElement::registerDeletionWatcher( IDeletionWatcher *watcher )
+	{
+		std::vector< IDeletionWatcher* >::iterator itr 
+			= std::find( deletionWatchers.begin(), deletionWatchers.end(), watcher );
+		// Already registered
+		if( itr != deletionWatchers.end() )
+			return;
+		deletionWatchers.push_back( watcher );
+	}
+
+	void CInterfaceElement::unregisterDeletionWatcher( IDeletionWatcher *watcher )
+	{
+		std::vector< IDeletionWatcher* >::iterator itr 
+			= std::find( deletionWatchers.begin(), deletionWatchers.end(), watcher );
+		// Not registered
+		if( itr == deletionWatchers.end() )
+			return;
+		deletionWatchers.erase( itr );
+	}
+
+	void CInterfaceElement::notifyDeletionWatchers()
+	{
+		std::vector< IDeletionWatcher* >::iterator itr = deletionWatchers.begin();
+		while( itr != deletionWatchers.end() )
+		{
+			(*itr)->onDeleted( _Id );
+			++itr;
+		}
+	}
+
 	CStringMapper* CStringShared::_UIStringMapper = NULL;
 
 

code/nel/src/gui/interface_group.cpp

@@ -141,12 +141,12 @@ namespace NLGUI
 	//	initStart = ryzomGetLocalTime ();
 		clearGroups();
 	//	nlinfo ("%d seconds for clearGroups '%s'", (uint32)(ryzomGetLocalTime ()-initStart)/1000, _Id.c_str());
-	//	initStart = ryzomGetLocalTime ();
-		clearViews();
-	//	nlinfo ("%d seconds for clearViews '%s'", (uint32)(ryzomGetLocalTime ()-initStart)/1000, _Id.c_str());
 	//	initStart = ryzomGetLocalTime ();
 		clearControls();
 	//	nlinfo ("%d seconds for clearControls '%s'", (uint32)(ryzomGetLocalTime ()-initStart)/1000, _Id.c_str());
+	//	initStart = ryzomGetLocalTime ();
+		clearViews();
+	//	nlinfo ("%d seconds for clearViews '%s'", (uint32)(ryzomGetLocalTime ()-initStart)/1000, _Id.c_str());
 		CWidgetManager::getInstance()->removeRefOnGroup (this);
 
 	#ifdef AJM_DEBUG_TRACK_INTERFACE_GROUPS
@@ -1084,9 +1084,11 @@ namespace NLGUI
 		{
 			if (_Views[i] == child)
 			{
-				if (!dontDelete) delete _Views[i];
+				CViewBase *v = _Views[i];
 				_Views.erase(_Views.begin()+i);
 				delEltOrder (child);
+				child->onRemoved();
+				if (!dontDelete) delete v;
 				return true;
 			}
 		}
@@ -1100,9 +1102,11 @@ namespace NLGUI
 		{
 			if (_Controls[i] == child)
 			{
-				if (!dontDelete) delete _Controls[i];
+				CCtrlBase *c = _Controls[i];
 				_Controls.erase(_Controls.begin()+i);
 				delEltOrder (child);
+				child->onRemoved();
+				if (!dontDelete) delete c;
 				return true;
 			}
 		}
@@ -1116,9 +1120,11 @@ namespace NLGUI
 		{
 			if (_ChildrenGroups[i] == child)
 			{
-				if (!dontDelete) delete _ChildrenGroups[i];
+				CInterfaceGroup *g = _ChildrenGroups[i];
 				_ChildrenGroups.erase(_ChildrenGroups.begin()+i);
 				delEltOrder (child);
+				child->onRemoved();
+				if (!dontDelete) delete g;
 				return true;
 			}
 		}
@@ -2468,4 +2474,16 @@ namespace NLGUI
 		return "IMPLEMENT ME!";
 	}
 
-}
+	void CInterfaceGroup::onWidgetDeleted( CInterfaceElement *e )
+	{
+		for( std::vector< CViewBase* >::iterator itr = _Views.begin(); itr != _Views.end(); ++itr )
+			(*itr)->onWidgetDeleted( e );
+
+		for( std::vector< CCtrlBase* >::iterator itr = _Controls.begin(); itr != _Controls.end(); ++itr )
+			(*itr)->onWidgetDeleted( e );
+
+		for( std::vector< CInterfaceGroup* >::iterator itr = _ChildrenGroups.begin(); itr != _ChildrenGroups.end(); ++itr )
+			(*itr)->onWidgetDeleted( e );
+	}
+}
+

code/nel/src/gui/view_base.cpp

@@ -45,5 +45,23 @@ namespace NLGUI
 		CInterfaceElement::visit(visitor);
 	}
 
+
+	bool CViewBase::handleEvent( const NLGUI::CEventDescriptor &evnt )
+	{
+		if( evnt.getType() == NLGUI::CEventDescriptor::mouse )
+		{
+			const NLGUI::CEventDescriptorMouse &eventDesc = ( const NLGUI::CEventDescriptorMouse& )evnt;
+			if( eventDesc.getEventTypeExtended() == NLGUI::CEventDescriptorMouse::mouseleftdown )
+			{
+				if( editorMode )
+				{
+					CWidgetManager::getInstance()->setCurrentEditorSelection( getId() );
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
 }
 

code/nel/src/gui/widget_manager.cpp

@@ -31,6 +31,7 @@
 #include "nel/gui/proc.h"
 #include "nel/gui/interface_expr.h"
 #include "nel/gui/reflect_register.h"
+#include "nel/gui/editor_selection_watcher.h"
 #include "nel/misc/events.h"
 
 namespace NLGUI
@@ -1031,6 +1032,7 @@ namespace NLGUI
 		_OldCaptureKeyboard = NULL;
 		setCapturePointerLeft(NULL);
 		setCapturePointerRight(NULL);
+		_CapturedView = NULL;
 		
 		resetColorProps();
 
@@ -2054,6 +2056,16 @@ namespace NLGUI
 				getPointer()->draw ();
 		}
 
+		if( CInterfaceElement::getEditorMode() )
+		{
+			if( !currentEditorSelection.empty() )
+			{
+				CInterfaceElement *e = getElementFromId( currentEditorSelection );
+				if( e != NULL )
+					e->drawHighlight();
+			}
+		}
+
 		// flush layers
 		CViewRenderer::getInstance()->flush();
 
@@ -2086,6 +2098,12 @@ namespace NLGUI
 					getCapturePointerRight()->handleEvent( evnt );
 					setCapturePointerRight( NULL );
 				}
+
+				if( _CapturedView != NULL )
+				{
+					_CapturedView->handleEvent( evnt );
+					_CapturedView = NULL;
+				}
 			}
 		}
 
@@ -2249,6 +2267,9 @@ namespace NLGUI
 					getCapturePointerLeft() != getCapturePointerRight() )
 					handled|= getCapturePointerRight()->handleEvent(evnt);
 
+				if( _CapturedView != NULL )
+					_CapturedView->handleEvent( evnt );
+
 				CInterfaceGroup *ptr = getWindowUnder (eventDesc.getX(), eventDesc.getY());
 				setCurrentWindowUnder( ptr );
 
@@ -2326,6 +2347,8 @@ namespace NLGUI
 						}
 					}
 
+					bool captured = false;
+
 					// must not capture a new element if a sheet is currentlty being dragged.
 					// This may happen when alt-tab has been used => the sheet is dragged but the left button is up
 					if (!CCtrlDraggable::getDraggedSheet())
@@ -2343,9 +2366,25 @@ namespace NLGUI
 								{
 									nMaxDepth = d;
 									setCapturePointerLeft( ctrl );
+									captured = true;
 								}
 							}
 						}
+
+						if( CInterfaceElement::getEditorMode() && !captured )
+						{
+							for( sint32 i = _ViewsUnderPointer.size()-1; i >= 0; i-- )
+							{
+								CViewBase *v = _ViewsUnderPointer[i];
+								if( ( v != NULL ) && v->isInGroup( pNewCurrentWnd ) )
+								{
+									_CapturedView = v;
+									captured = true;
+									break;
+								}
+							}
+						}
+
 						notifyElementCaptured( getCapturePointerLeft() );
 						if (clickedOutModalWindow && !clickedOutModalWindow->OnPostClickOut.empty())
 						{
@@ -2353,13 +2392,16 @@ namespace NLGUI
 						}
 					}
 					//if found
-					if ( getCapturePointerLeft() != NULL)
+					if ( captured )
 					{
 						// consider clicking on a control implies handling of the event.
 						handled= true;
 
 						// handle the capture
-						getCapturePointerLeft()->handleEvent(evnt);
+						if( getCapturePointerLeft() != NULL )
+							getCapturePointerLeft()->handleEvent(evnt);
+						else
+							_CapturedView->handleEvent( evnt );
 					}
 				}
 
@@ -2588,6 +2630,8 @@ namespace NLGUI
 	// ***************************************************************************
 	void CWidgetManager::setCapturePointerLeft(CCtrlBase *c)
 	{
+		_CapturedView = NULL;
+
 		// additionally, abort any dragging
 		if( CCtrlDraggable::getDraggedSheet() != NULL )
 			CCtrlDraggable::getDraggedSheet()->abortDragging();
@@ -3147,8 +3191,47 @@ namespace NLGUI
 					prev->setEditorSelected( false );
 			}
 			e->setEditorSelected( true );
-			currentEditorSelection = name;
 		}
+		else
+		if( !name.empty() )
+			return;
+		
+		currentEditorSelection = name;
+		notifySelectionWatchers();
+	}
+
+	void CWidgetManager::notifySelectionWatchers()
+	{
+		std::vector< IEditorSelectionWatcher* >::iterator itr = selectionWatchers.begin();
+		while( itr != selectionWatchers.end() )
+		{
+			(*itr)->selectionChanged( currentEditorSelection );
+			++itr;
+		}
+	}
+
+	void CWidgetManager::registerSelectionWatcher( IEditorSelectionWatcher *watcher )
+	{
+		std::vector< IEditorSelectionWatcher* >::iterator itr =
+			std::find( selectionWatchers.begin(), selectionWatchers.end(), watcher );
+		
+		// We already have this watcher
+		if( itr != selectionWatchers.end() )
+			return;
+
+		selectionWatchers.push_back( watcher );
+	}
+
+	void CWidgetManager::unregisterSelectionWatcher( IEditorSelectionWatcher *watcher )
+	{
+		std::vector< IEditorSelectionWatcher* >::iterator itr =
+			std::find( selectionWatchers.begin(), selectionWatchers.end(), watcher );
+		
+		// We don't have this watcher
+		if( itr == selectionWatchers.end() )
+			return;
+
+		selectionWatchers.erase( itr );
 	}
 
 

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/CMakeLists.txt

@@ -60,6 +60,8 @@ SET(OVQT_PLUGIN_GUI_EDITOR_HDR
 	nelgui_widget.h
 	new_property_widget.h
 	new_widget_widget.h
+	editor_selection_watcher.h
+	editor_message_processor.h
 	)
 	
 SET(OVQT_PLUGIN_GUI_EDITOR_UIS

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/editor_message_processor.cpp

@@ -0,0 +1,58 @@
+// Object Viewer Qt GUI Editor plugin <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <QMessageBox>
+#include "editor_message_processor.h"
+
+#include "nel/gui/interface_group.h"
+#include "nel/gui/widget_manager.h"
+
+namespace GUIEditor
+{
+	void CEditorMessageProcessor::onDelete()
+	{
+		std::string selection = CWidgetManager::getInstance()->getCurrentEditorSelection();
+		if( selection.empty() )
+			return;
+
+		QMessageBox::StandardButton r =
+			QMessageBox::question( NULL, 
+									tr( "Deleting widget" ),
+									tr( "Are you sure you want to delete %1?" ).arg( selection.c_str() ),
+									QMessageBox::Yes | QMessageBox::No );
+		if( r != QMessageBox::Yes )
+			return;
+
+		CInterfaceElement *e =
+			CWidgetManager::getInstance()->getElementFromId( selection );
+		if( e == NULL )
+			return;
+
+		CInterfaceElement *p = e->getParent();
+		if( p == NULL )
+			return;
+		
+		CInterfaceGroup *g = dynamic_cast< CInterfaceGroup* >( p );
+		if( g == NULL )
+			return;
+
+		if( g->delElement( e ) )
+		{
+			CWidgetManager::getInstance()->setCurrentEditorSelection( "" );
+		}
+	}
+}
+

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/editor_message_processor.h

@@ -0,0 +1,33 @@
+// Object Viewer Qt GUI Editor plugin <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <QObject>
+
+namespace GUIEditor
+{
+	/// Processes the GUI Editor's editor messages like delete, new, etc...
+	class CEditorMessageProcessor : public QObject
+	{
+		Q_OBJECT
+	public:
+		CEditorMessageProcessor( QObject *parent = NULL ) : QObject( parent ){}
+		~CEditorMessageProcessor(){}
+		
+	public Q_SLOTS:
+		void onDelete();
+	};
+}
+

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/editor_selection_watcher.cpp

@@ -0,0 +1,26 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "editor_selection_watcher.h"
+
+namespace GUIEditor
+{
+	void CEditorSelectionWatcher::selectionChanged( std::string &newSelection )
+	{
+		Q_EMIT sgnSelectionChanged( newSelection );
+	}
+}
+

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/editor_selection_watcher.h

@@ -0,0 +1,36 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include "nel/gui/editor_selection_watcher.h"
+#include <QObject>
+
+namespace GUIEditor
+{
+	/// Watches the Editor selection, and emits a signal when it changes
+	class CEditorSelectionWatcher : public QObject, public NLGUI::IEditorSelectionWatcher
+	{
+		Q_OBJECT
+
+	public:
+		CEditorSelectionWatcher() : QObject( NULL ){}
+
+		void selectionChanged( std::string &newSelection );
+
+	Q_SIGNALS:
+		void sgnSelectionChanged( std::string &id );
+	};
+}
+

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/gui_editor_window.cpp

@@ -41,6 +41,8 @@
 #include "project_file_serializer.h"
 #include "project_window.h"
 #include "nelgui_widget.h"
+#include "editor_selection_watcher.h"
+#include "editor_message_processor.h"
 
 namespace GUIEditor
 {
@@ -53,6 +55,7 @@ namespace GUIEditor
 	QMainWindow(parent)
 	{
 		m_ui.setupUi(this);
+		messageProcessor = new CEditorMessageProcessor;
 		m_undoStack   = new QUndoStack(this);
 		widgetProps   = new CWidgetProperties;
 		linkList      = new LinkList;
@@ -91,17 +94,16 @@ namespace GUIEditor
 
 		viewPort->init();
 
-		connect( viewPort, SIGNAL( guiLoadComplete() ), hierarchyView, SLOT( onGUILoaded() ) );
-		connect( viewPort, SIGNAL( guiLoadComplete() ), procList, SLOT( onGUILoaded() ) );
-		connect( viewPort, SIGNAL( guiLoadComplete() ), linkList, SLOT( onGUILoaded() ) );
-		connect( hierarchyView, SIGNAL( selectionChanged( std::string& ) ),
-			&browserCtrl, SLOT( onSelectionChanged( std::string& ) ) );
+		connect( viewPort, SIGNAL( guiLoadComplete() ), this, SLOT( onGUILoaded() ) );
 	}
 	
 	GUIEditorWindow::~GUIEditorWindow()
 	{
 		writeSettings();
 
+		delete messageProcessor;
+		messageProcessor = NULL;
+
 		delete widgetProps;
 		widgetProps = NULL;
 
@@ -262,6 +264,11 @@ namespace GUIEditor
 		if( reply != QMessageBox::Yes )
 			return false;
 
+
+		CEditorSelectionWatcher *w = viewPort->getWatcher();
+		disconnect( w, SIGNAL( sgnSelectionChanged( std::string& ) ), hierarchyView, SLOT( onSelectionChanged( std::string& ) ) );
+		disconnect( w, SIGNAL( sgnSelectionChanged( std::string& ) ), &browserCtrl, SLOT( onSelectionChanged( std::string& ) ) );
+
 		projectFiles.clearAll();
 		projectWindow->clear();
 		hierarchyView->clearHierarchy();
@@ -291,6 +298,16 @@ namespace GUIEditor
 		setCursor( Qt::ArrowCursor );
 	}
 
+	void GUIEditorWindow::onGUILoaded()
+	{
+		hierarchyView->onGUILoaded();
+		procList->onGUILoaded();
+		linkList->onGUILoaded();
+
+		CEditorSelectionWatcher *w = viewPort->getWatcher();
+		connect( w, SIGNAL( sgnSelectionChanged( std::string& ) ), hierarchyView, SLOT( onSelectionChanged( std::string& ) ) );
+		connect( w, SIGNAL( sgnSelectionChanged( std::string& ) ), &browserCtrl, SLOT( onSelectionChanged( std::string& ) ) );
+	}
 
 	void GUIEditorWindow::createMenus()
 	{
@@ -299,6 +316,7 @@ namespace GUIEditor
 		QAction *saveAction = mm->action( Core::Constants::SAVE );
 		QAction *saveAsAction = mm->action( Core::Constants::SAVE_AS );
 		QAction *closeAction = mm->action( Core::Constants::CLOSE );
+		QAction *delAction = mm->action( Core::Constants::DEL );
 
 		//if( newAction != NULL )
 		//	newAction->setEnabled( true );
@@ -308,6 +326,11 @@ namespace GUIEditor
 			saveAsAction->setEnabled( true );
 		if( closeAction != NULL )
 			closeAction->setEnabled( true );
+		if( delAction != NULL )
+		{
+			delAction->setEnabled( true );
+			connect( delAction, SIGNAL( triggered( bool ) ), messageProcessor, SLOT( onDelete() ) );
+		}
 
 		QMenu *menu = mm->menu( Core::Constants::M_TOOLS );
 		if( menu != NULL )

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/gui_editor_window.h

@@ -36,6 +36,7 @@ namespace GUIEditor
 	class ProjectWindow;
 	class NelGUIWidget;
 	class CWidgetInfoTree;
+	class CEditorMessageProcessor;
 
 	class GUIEditorWindow: public QMainWindow
 	{
@@ -58,6 +59,7 @@ public Q_SLOTS:
 
 private Q_SLOTS:
 		void onProjectFilesChanged();
+		void onGUILoaded();
 
 private:
 		void createMenus();
@@ -76,8 +78,8 @@ private:
 		ProcList *procList;
 		ProjectWindow *projectWindow;
 		NelGUIWidget *viewPort;
-
 		CWidgetInfoTree *widgetInfoTree;
+		CEditorMessageProcessor *messageProcessor;
 
 		CPropBrowserCtrl browserCtrl;
 		QString currentProject;

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/nelgui_widget.cpp

@@ -27,6 +27,7 @@
 #include <set>
 #include <string>
 #include <QTimerEvent>
+#include "editor_selection_watcher.h"
 
 namespace GUIEditor
 {
@@ -37,6 +38,7 @@ namespace GUIEditor
 	{
 		timerID = 0;
 		guiLoaded = false;
+		watcher = NULL;
 	}
 
 	NelGUIWidget::~NelGUIWidget()
@@ -70,6 +72,8 @@ namespace GUIEditor
 		NLGUI::CViewRenderer::getInstance()->init();
 
 		CWidgetManager::getInstance()->getParser()->setEditorMode( true );
+
+		watcher = new CEditorSelectionWatcher();
 	}
 
 	bool NelGUIWidget::parse( SProjectFiles &files )
@@ -106,6 +110,8 @@ namespace GUIEditor
 		guiLoaded = true;
 		Q_EMIT guiLoadComplete();
 
+		CWidgetManager::getInstance()->registerSelectionWatcher( watcher );
+
 		return true;
 	}
 
@@ -115,6 +121,7 @@ namespace GUIEditor
 		if( timerID != 0 )
 			killTimer( timerID );
 		timerID = 0;
+		CWidgetManager::getInstance()->unregisterSelectionWatcher( watcher );
 		CWidgetManager::getInstance()->reset();
 		CWidgetManager::getInstance()->getParser()->removeAll();
 		CViewRenderer::getInstance()->reset();

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/nelgui_widget.h

@@ -23,6 +23,8 @@
 
 namespace GUIEditor
 {
+	class CEditorSelectionWatcher;
+
 	/// Qt viewport for the Nel GUI library
 	class NelGUIWidget : public Nel3DWidget
 	{
@@ -35,6 +37,7 @@ namespace GUIEditor
 		bool parse( SProjectFiles &files );
 		void draw();
 		void reset();
+		CEditorSelectionWatcher* getWatcher(){ return watcher; }
 
 Q_SIGNALS:
 		void guiLoadComplete();
@@ -49,6 +52,7 @@ Q_SIGNALS:
 	private:
 		int timerID;
 		bool guiLoaded;
+		CEditorSelectionWatcher *watcher;
 	};
 }
 

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/property_browser_ctrl.cpp

@@ -78,7 +78,12 @@ namespace GUIEditor
 
 		CInterfaceElement *e = CWidgetManager::getInstance()->getElementFromId( id );
 		if( e == NULL )
+		{
+			connect( propertyMgr, SIGNAL( propertyChanged( QtProperty* ) ),
+				this, SLOT( onPropertyChanged( QtProperty* ) ) );
+
 			return;
+		}
 
 		currentElement = id;
 

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_hierarchy.cpp

@@ -56,6 +56,26 @@ namespace
 		name = s.toUtf8().constData();
 		return name;
 	}
+
+	class CWidgetDeletionWatcher : public CInterfaceElement::IDeletionWatcher
+	{
+	public:
+		CWidgetDeletionWatcher(){ h = NULL; }
+		
+		~CWidgetDeletionWatcher(){}
+		
+		void onDeleted( const std::string &id ){
+			if( h != NULL )
+				h->onWidgetDeleted( id );
+		}
+
+		void setWidgetHierarchy( GUIEditor::WidgetHierarchy *h ){ this->h = h; }
+
+	private:
+		GUIEditor::WidgetHierarchy *h;
+	};
+
+	CWidgetDeletionWatcher deletionWatcher;
 }
 
 namespace GUIEditor
@@ -66,6 +86,7 @@ namespace GUIEditor
 		setupUi( this );
 		connect( widgetHT, SIGNAL( itemDoubleClicked( QTreeWidgetItem*, int ) ),
 			this, SLOT( onItemDblClicked( QTreeWidgetItem* ) ) );
+		deletionWatcher.setWidgetHierarchy( this );
 	}
 
 	WidgetHierarchy::~WidgetHierarchy()
@@ -74,12 +95,15 @@ namespace GUIEditor
 
 	void WidgetHierarchy::clearHierarchy()
 	{
+		CInterfaceElement::unregisterDeletionWatcher( &deletionWatcher );
 		widgetHT->clear();
+		widgetHierarchyMap.clear();
 	}
 
 	void WidgetHierarchy::buildHierarchy( std::string &masterGroup )
 	{
 		clearHierarchy();
+		CInterfaceElement::registerDeletionWatcher( &deletionWatcher );
 
 		CInterfaceGroup *mg = CWidgetManager::getInstance()->getMasterGroupFromId( masterGroup );
 		if( mg != NULL )
@@ -87,6 +111,7 @@ namespace GUIEditor
 			QTreeWidgetItem *item = new QTreeWidgetItem( NULL );
 			item->setText( 0, "ui" );
 			widgetHT->addTopLevelItem( item );
+			widgetHierarchyMap[ "ui" ] = item;
 
 			buildHierarchy( item, mg );
 		}
@@ -96,7 +121,9 @@ namespace GUIEditor
 	{
 		// First add ourselves
 		QTreeWidgetItem *item = new QTreeWidgetItem( parent );
+		
 		item->setText( 0, makeNodeName( group->getId() ).c_str() );
+		widgetHierarchyMap[ group->getId() ] = item;
 
 		// Then add recursively our subgroups
 		const std::vector< CInterfaceGroup* > &groups = group->getGroups();
@@ -113,6 +140,7 @@ namespace GUIEditor
 		{
 			QTreeWidgetItem *subItem = new QTreeWidgetItem( item );
 			subItem->setText( 0, makeNodeName( (*citr)->getId() ).c_str() );
+			widgetHierarchyMap[ (*citr)->getId() ] = subItem;
 		}
 
 		// Add our views
@@ -122,14 +150,81 @@ namespace GUIEditor
 		{
 			QTreeWidgetItem *subItem = new QTreeWidgetItem( item );
 			subItem->setText( 0, makeNodeName( (*vitr)->getId() ).c_str() );
+			widgetHierarchyMap[ (*vitr)->getId() ] = subItem;
 		}
 	}
 
+	void WidgetHierarchy::onWidgetDeleted( const std::string &id )
+	{
+		std::map< std::string, QTreeWidgetItem* >::iterator itr
+			= widgetHierarchyMap.find( id );
+		if( itr == widgetHierarchyMap.end() )
+			return;
+
+		if( widgetHT->currentItem() == itr->second )
+		{
+			QTreeWidgetItem *item = itr->second;
+			QTreeWidgetItem *p = item;
+			
+			// Deselect item
+			item->setSelected( false );
+			widgetHT->setCurrentItem( NULL );
+			
+			// Collapse the tree
+			while( p != NULL )
+			{
+				p->setExpanded( false );
+				p = p->parent();
+			}
+			
+			currentSelection = "";
+		}
+
+		itr->second->setSelected( false );
+
+		delete itr->second;
+		itr->second = NULL;
+		widgetHierarchyMap.erase( itr );
+	}
+
 	void WidgetHierarchy::onGUILoaded()
 	{
 		if( masterGroup.empty() )
 			return;
 		buildHierarchy( masterGroup );
+		currentSelection.clear();
+	}
+
+	void WidgetHierarchy::onSelectionChanged( std::string &newSelection )
+	{
+		if( newSelection == currentSelection )
+			return;
+
+		if( newSelection.empty() )
+			return;
+
+		std::map< std::string, QTreeWidgetItem* >::iterator itr = 
+			widgetHierarchyMap.find( newSelection );
+		if( itr == widgetHierarchyMap.end() )
+			return;
+
+		// deselect current item
+		if( widgetHT->currentItem() != NULL )
+			widgetHT->currentItem()->setSelected( false );
+
+		// expand the tree items, so that we can see the selected item
+		QTreeWidgetItem *item = itr->second;
+		QTreeWidgetItem *currItem = item;
+		while( currItem != NULL )
+		{
+			currItem->setExpanded( true );
+			currItem = currItem->parent();
+		}
+
+		// select the current item
+		item->setSelected( true );
+		widgetHT->setCurrentItem( item );
+		currentSelection = newSelection;
 	}
 
 	void WidgetHierarchy::onItemDblClicked( QTreeWidgetItem *item )
@@ -138,9 +233,7 @@ namespace GUIEditor
 			return;
 		
 		std::string n = item->text( 0 ).toUtf8().constData();
-		std::string selection = makeFullName( item, n );
-		CWidgetManager::getInstance()->setCurrentEditorSelection( selection );
-		
-		Q_EMIT selectionChanged( selection );
+		currentSelection = makeFullName( item, n );
+		CWidgetManager::getInstance()->setCurrentEditorSelection( currentSelection );
 	}
 }

code/nel/tools/3d/object_viewer_qt/src/plugins/gui_editor/widget_hierarchy.h

@@ -18,6 +18,8 @@
 #define WIDGET_HA_H
 
 #include "ui_widget_hierarchy.h"
+#include <string>
+#include <map>
 
 namespace NLGUI
 {
@@ -40,11 +42,14 @@ namespace GUIEditor
 		void clearHierarchy();
 		void buildHierarchy( std::string &masterGroup );
 
+		void onWidgetDeleted( const std::string &id );
+
 	private:
 		void buildHierarchy( QTreeWidgetItem *parent, NLGUI::CInterfaceGroup *group );
 
 	public Q_SLOTS:
 		void onGUILoaded();
+		void onSelectionChanged( std::string &newSelection );
 
 	private Q_SLOTS:
 		void onItemDblClicked( QTreeWidgetItem *item );
@@ -52,9 +57,7 @@ namespace GUIEditor
 	private:
 		std::string currentSelection;
 		std::string masterGroup;
-
-	Q_SIGNALS:
-		void selectionChanged( std::string &id );
+		std::map< std::string, QTreeWidgetItem* > widgetHierarchyMap;
 	};
 }