Icons.java

/*******************************************************************************
 * Copyright (c) 2014 Open Door Logistics (www.opendoorlogistics.com)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser Public License v3
 * which accompanies this distribution, and is available at http://www.gnu.org/licenses/lgpl.txt
 ******************************************************************************/
package com.opendoorlogistics.utils.ui;

import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Image;
import java.awt.image.BufferedImage;

import javax.swing.Icon;
import javax.swing.ImageIcon;

final public class Icons {
	private Icons() {
	}

	public static ImageIcon loadFromStandardPath(String name) {
		// Load using our own class loader (not Object's) so embedded resources are
		// loaded correctly if the jar is loaded by reflection.
		return new ImageIcon(Icons.class.getResource("/resources/icons/" + name));
	}

	/**
	 * See http://stackoverflow.com/questions/5830533/how-can-i-convert-an-icon-to-an-image
	 * @param icon
	 * @return
	 */
	public static Image iconToImage(Icon icon) {
		if (icon instanceof ImageIcon) {
			return ((ImageIcon) icon).getImage();
		} else {
			int w = icon.getIconWidth();
			int h = icon.getIconHeight();
			GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
			GraphicsDevice gd = ge.getDefaultScreenDevice();
			GraphicsConfiguration gc = gd.getDefaultConfiguration();
			BufferedImage image = gc.createCompatibleImage(w, h);
			Graphics2D g = image.createGraphics();
			icon.paintIcon(null, g, 0, 0);
			g.dispose();
			return image;
		}
	}
}