boofcv.gui.image.AnimatePanel Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of visualize Show documentation

BoofCV is an open source Java library for real-time computer vision and robotics applications.

The newest version!

/*
 * Copyright (c) 2011-2014, Peter Abeles. All Rights Reserved.
 *
 * This file is part of BoofCV (http://boofcv.org).
 *
 * 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 boofcv.gui.image;

import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;

/**
 * Displays a sequence of images.
 *
 * @author Peter Abeles
 */
public class AnimatePanel extends JPanel {

	BufferedImage images[];
	long previousTime;
	int period;
	int frame;

	Timer timer;

	public AnimatePanel( int period , BufferedImage... images) {
		this.period = period;
		this.images = images;
		if( images != null )
			setPreferredSize(new Dimension(images[0].getWidth(),images[1].getHeight()));
	}

	public void setAnimation( BufferedImage... images ) {
		this.images = images;
	}

	public void start() {
		if( timer != null )
			throw new IllegalArgumentException("Already running");

		timer = new Timer();
		timer.start();
	}

	public void stop() {
		timer.running = false;
		timer = null;
	}

	@Override
	public void paintComponent(Graphics g) {
		super.paintComponent(g);
		Graphics2D g2 = (Graphics2D)g;

		if( images == null )
			return;

		if( previousTime <= System.currentTimeMillis() ) {
			previousTime = System.currentTimeMillis()+period-1;
			frame = (frame+1)%images.length;
		}

		g2.drawImage(images[frame], 0, 0, this);
	}

	private class Timer extends Thread {

		public volatile boolean running = true;

		@Override
		public void run() {
			previousTime = 0;
			synchronized(this){
				while( running ) {
					try {
						wait(period);
						repaint();
					} catch (InterruptedException e) {}
				}
			}
		}
	}
}