protected Command createChangeConstraintCommand(ChangeBoundsRequest request,
EditPart child,
Object constraint) {
if ( child instanceof NodeEditPart && constraint instanceof Rectangle ) {
// return a command that can move and/or resize a BaseVertex
return new NodeSetConstraintCommand( (BaseVertex) child.getModel(),
request,
(Rectangle) constraint );
}
return super.createChangeConstraintCommand( request,
child,