/*******************************************************************************
 * This file is part of logisim-evolution.
 *
 *   logisim-evolution is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   logisim-evolution is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with logisim-evolution.  If not, see <http://www.gnu.org/licenses/>.
 *
 *   Original code by Carl Burch (http://www.cburch.com), 2011.
 *   Subsequent modifications by :
 *     + Haute École Spécialisée Bernoise
 *       http://www.bfh.ch
 *     + Haute École du paysage, d'ingénierie et d'architecture de Genève
 *       http://hepia.hesge.ch/
 *     + Haute École d'Ingénierie et de Gestion du Canton de Vaud
 *       http://www.heig-vd.ch/
 *   The project is currently maintained by :
 *     + REDS Institute - HEIG-VD
 *       Yverdon-les-Bains, Switzerland
 *       http://reds.heig-vd.ch
 *******************************************************************************/

package com.cburch.logisim.gui.generic;

import java.awt.Image;
import java.awt.Window;
import java.awt.event.WindowEvent;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import javax.swing.ImageIcon;
import javax.swing.JFrame;

import com.cburch.logisim.util.WindowClosable;

public class LFrame extends JFrame implements WindowClosable {
	public static void attachIcon(Window frame) {
		if (ICONS == null) {
			List<Image> loadedIcons = new ArrayList<Image>();
			ClassLoader loader = LFrame.class.getClassLoader();
			for (int size : SIZES) {
				URL url = loader.getResource(PATH + size + ".png");
				if (url != null) {
					ImageIcon icon = new ImageIcon(url);
					loadedIcons.add(icon.getImage());
					if (size == DEFAULT_SIZE) {
						DEFAULT_ICON = icon.getImage();
					}
				}
			}
			ICONS = loadedIcons;
		}

		boolean success = false;
		try {
			if (ICONS != null && !ICONS.isEmpty()) {
				Method set = frame.getClass().getMethod("setIconImages",
						List.class);
				set.invoke(frame, ICONS);
				success = true;
			}
		} catch (Exception e) {
		}

		if (!success && frame instanceof JFrame && DEFAULT_ICON != null) {
			((JFrame) frame).setIconImage(DEFAULT_ICON);
		}
	}

	private static final long serialVersionUID = 1L;
	private static final String PATH = "resources/logisim/img/logisim-icon-";
	private static final int[] SIZES = { 16, 20, 24, 48, 64, 128 };
	private static List<Image> ICONS = null;
	private static final int DEFAULT_SIZE = 48;

	private static Image DEFAULT_ICON = null;

	public LFrame() {
		LFrame.attachIcon(this);
	}

	@Override
	public void requestClose() {
		WindowEvent closing = new WindowEvent(this, WindowEvent.WINDOW_CLOSING);
		processWindowEvent(closing);
	}
}