PaintUtils.java

/**
 * Copyright (c) 2014 Marc Fiume <mfiume@cs.toronto.edu>
 * Unauthorized use of this file is strictly prohibited.
 * 
 * All rights reserved. No warranty, explicit or implicit, provided.
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
 * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
package mfiume.component.transition.painter;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;

/**
 *
 * @author mfiume
 */
public class PaintUtils {
    
    static BufferedImage getImageFromSource(JPanel source, Dimension dim) {
        int width = dim.width;
        int height = dim.height;
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
        Graphics g = image.createGraphics();
        Rectangle originalBounds = source.getBounds();
        source.setBounds(0, 0, width, height);
        source.updateUI();
        source.paint(g);
        source.setBounds(originalBounds);
        g.dispose();
        return image;
    }
}