Reindex tile item nodes after deleting a node.

--HG--
branch : gsoc2014-dfighter

code/studio/src/plugins/tile_editor/tile_item.cpp

@@ -224,7 +224,33 @@ TileModel::TNodeTileType TileTypeNode::getTileType()
 	return m_nodeTileType;
 }
 
+bool TileTypeNode::removeChildren( int position, int count )
+{
+	bool ok = Node::removeChildren( position, count );
+	if( !ok )
+		return false;
 
+	reindex();
+
+	return true;
+}
+
+void TileTypeNode::reindex()
+{
+	int i = 0;
+
+	QListIterator< Node* > itr( m_childItems );
+	while( itr.hasNext() )
+	{
+		TileItemNode *n = dynamic_cast< TileItemNode* >( itr.next() );
+		if( n == NULL )
+			continue;
+
+		n->setId( i );
+
+		i++;
+	}
+}
 
 
 ///////////////////////////////////////////////////

code/studio/src/plugins/tile_editor/tile_item.h

@@ -90,7 +90,11 @@ public:
 	int columnCount() const;
 
 	TileModel::TNodeTileType getTileType();
+
+	bool removeChildren( int position, int count );
+
 private:
+	void reindex();
 	TileModel::TNodeTileType m_nodeTileType;
 };
 
@@ -102,6 +106,8 @@ public:
 	QVariant data(int column, int role) const;
 	int columnCount() const;
 	void setTileFilename(TileModel::TTileChannel channel, QString filename);
+	void setId( int id ){ m_tileId = id; }
+	int id() const{ return m_tileId; }
 private:
 	int m_tileId;
 	QMap<TileModel::TTileChannel, QString> m_tileFilename;