public void setParent ( AstNode parent ) { if ( parent == this . parent ) { return ; } // Convert position back to absolute. if ( this . parent != null ) { setRelative ( - this . parent . getAbsolutePosition ( ) ) ; } this . parent = parent ; if ( parent != null ) { setRelative ( parent . getAbsolutePosition ( ) ) ; } }
Sets the node parent . This method automatically adjusts the current node s start position to be relative to the new parent .