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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 com.jfoenix.controls;

import com.jfoenix.transitions.hamburger.HamburgerTransition;
import javafx.animation.Transition;
import javafx.beans.DefaultProperty;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;

/**
 * the famous animated hamburger icon used in material design
 *
 * @author Shadi Shaheen
 * @version 1.0
 * @since 2016-03-09
 */
@DefaultProperty(value = "animation")
public class JFXHamburger extends VBox {

    private Transition animation;

    /**
     * creates a hamburger icon
     */
    public JFXHamburger() {

        StackPane line1 = new StackPane();
        StackPane line2 = new StackPane();
        StackPane line3 = new StackPane();

        initStyle(line1);
        initStyle(line2);
        initStyle(line3);

        this.getChildren().add(line1);
        this.getChildren().add(line2);
        this.getChildren().add(line3);

        this.getStyleClass().add(DEFAULT_STYLE_CLASS);
        this.setAlignment(Pos.CENTER);
        this.setFillWidth(false);
        this.setSpacing(4);
    }

    /**
     * @return the current animation of the hamburger
     */
    public Transition getAnimation() {
        return animation;
    }

    /**
     * set a specified {@link HamburgerTransition}
     *
     * @param animation
     */
    public void setAnimation(Transition animation) {
        this.animation = ((HamburgerTransition) animation).getAnimation(this);
        this.animation.setRate(-1);
    }

    private void initStyle(StackPane pane) {
        pane.setOpacity(1);
        pane.setPrefSize(30, 4);
        pane.setBackground(new Background(new BackgroundFill(Color.BLACK, new CornerRadii(5), Insets.EMPTY)));
    }

    /**
     * Initialize the style class to 'jfx-hamburger'.
     * 
     * This is the selector class from which CSS can be used to style
     * this control.
     */
    private static final String DEFAULT_STYLE_CLASS = "jfx-hamburger";

}