/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.kie.workbench.common.stunner.core.client.canvas.controls;
/**
* A canvas shape/element registration control.
* It can implement <code>IsWidget</code> if the control have to include views outside the canvas.
*/
public interface CanvasRegistationControl<C, E> extends CanvasControl<C> {
/**
* An element is registered on the canvas.
*/
void register(final E element);
/**
* An element is de-registered from the canvas.
*/
void deregister(final E element);
}