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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.netbeans.api.visual.vmd;

import org.netbeans.api.visual.model.ObjectState;
import org.netbeans.api.visual.router.Router;
import org.netbeans.api.visual.widget.ConnectionWidget;
import org.netbeans.api.visual.widget.Scene;

/**
 * This class represents a connection widget in the VMD visualization style. Can be combined with any other widget.
 *
 * @author David Kaspar
 */
public class VMDConnectionWidget extends ConnectionWidget {

    private VMDColorScheme scheme;

    /**
     * Creates a connection widget with a specific router.
     * @param scene the scene
     * @param router the router
     */
    public VMDConnectionWidget (Scene scene, Router router) {
        this (scene, VMDFactory.getOriginalScheme ());
        if (router != null)
            setRouter (router);
    }

    /**
     * Creates a connection widget with a specific color scheme.
     * @param scene the scene
     * @param scheme the color scheme
     */
    public VMDConnectionWidget (Scene scene, VMDColorScheme scheme) {
        super (scene);
        assert scheme != null;
        this.scheme = scheme;
        scheme.installUI (this);
        setState (ObjectState.createNormal ());
    }

    /**
     * Implements the widget-state specific look of the widget.
     * @param previousState the previous state
     * @param state the new state
     */
    public void notifyStateChanged (ObjectState previousState, ObjectState state) {
        scheme.updateUI (this, previousState, state);
    }

}