Fixed: #1302 Fixed crash program.

--HG--
branch : gsoc2011-worldeditorqt

code/nel/tools/3d/object_viewer_qt/src/plugins/world_editor/world_editor_actions.cpp

@@ -121,7 +121,7 @@ void removeGraphicsItems(const QModelIndex &primIndex, PrimitivesTreeModel *mode
 		{
 			QGraphicsItem *item = qvariant_cast<QGraphicsItem *>(node->data(Constants::GRAPHICS_DATA_QT4_2D));
 			if (item != 0)
-				delete item;
+				scene->removeWorldItem(item);
 			break;
 		}
 		}

code/nel/tools/3d/object_viewer_qt/src/plugins/world_editor/world_editor_scene.cpp

@@ -80,6 +80,15 @@ QGraphicsItem *WorldEditorScene::addWorldItemZone(const QPolygonF &polygon)
 	return item;
 }
 
+void WorldEditorScene::removeWorldItem(QGraphicsItem *item)
+{
+	updateSelectedItems(true);
+	m_selectedItems.clear();
+	m_editedSelectedItems = false;
+	m_firstSelection = false;
+	delete item;
+}
+
 void WorldEditorScene::setModeEdit(WorldEditorScene::ModeEdit mode)
 {
 	if (mode == WorldEditorScene::SelectMode)

code/nel/tools/3d/object_viewer_qt/src/plugins/world_editor/world_editor_scene.h

@@ -59,6 +59,8 @@ public:
 	QGraphicsItem *addWorldItemPath(const QPolygonF &polyline);
 	QGraphicsItem *addWorldItemZone(const QPolygonF &polygon);
 
+	void removeWorldItem(QGraphicsItem *item);
+
 	void setModeEdit(WorldEditorScene::ModeEdit mode);
 	WorldEditorScene::ModeEdit editMode() const;