/*  This file is part of the source code for 3D-XplorMath-J, Version 1.0 (January 2008).
 *  Copyright (c) 2008 The 3D-XplorMath Consortium (http://3d-xplormath.org).
 *  This source code is released under a BSD License, which allows redistribution   
 *  in source and binary form, with or without modification, provided copyright
 *  and license information are included, and with no warranty or guarantee of
 *  any kind.  For details, see http://3d-xplormath.org/j/source/BSDLicense.txt
 */
 
 package vmm3d.xm3d;

import java.io.InputStream;
import java.net.URL;
import java.util.Locale;

import vmm3d.core.Exhibit;
import vmm3d.core.I18n;
import vmm3d.core.SaveAndRestore;
import vmm3d.core.UserExhibit;
import vmm3d.core.Util;
import vmm3d.core.View;


/**
* A main class that opens a window, possibly with options specified
* as command-line arguemnts.
* Command line argments can include an option "--Locale=xx" where
* xx is the two-letter language code to be used in {@link I18n};
* there can also be an argument specifying an Exhibit
* to be shown when the program is launched -- this argument
* should be either the full class name of an Exhibit class or
* the full resource file name, ending in ".xml", for an xml settings file).
* Any other command line arguments are ignored.
*/
public class MainXM3D {

	public static void main(String[] args) {
		String exhibitName = null;
		for (int i = 0; i < args.length; i++) {
			if (args[i].toLowerCase().startsWith("--locale=")) {
				String locale = args[i].substring(9).toLowerCase();
				if (locale.length() == 2)
					I18n.setLocale(new Locale(locale));
			}
			else if (! args[i].startsWith("-"))
				exhibitName = args[i];
		}
		Exhibit exhibit = null;
		View view = null;
		if (exhibitName != null) {
			try {
				if (exhibitName.endsWith(".xml")) {
					ClassLoader cl = MainForWebStart.class.getClassLoader();
					URL url = cl.getResource(exhibitName);
					if (url == null)
						throw new Exception("Can't find resource file.");
					InputStream in = url.openStream();					
					exhibit = SaveAndRestore.readExhibitFromXML(in,"Settings File");
					view = exhibit.getViews().get(0);
				}
				else {
					exhibit = (Exhibit)Class.forName(exhibitName).newInstance();
					if (exhibit instanceof UserExhibit) {
						view = ((UserExhibit)exhibit).getUserExhibitSupport().defaults();
						if (view == null)
							throw new Exception("Error while creating user exhibits with default settings");
					}
					else
						view = exhibit.getDefaultView();
				}
			}
			catch (Exception e) {
				System.out.println("Could not load specified exhibit, \"" + exhibitName + "\".");
				e.printStackTrace();
				exhibit = null;
				view = null;
			}
		}
		if (Util.isMacOS()) {
			try {
				System.setProperty("apple.laf.useScreenMenuBar","true");
				System.setProperty("com.apple.mrj.application.apple.menu.about.name","3D-XPlorMath-J");
			}
			catch (Exception e) {
			}
		}
		WindowXM window = new WindowXM();
		if (exhibit != null)
			window.getMenus().install(view, exhibit);
		window.setVisible(true);
	}
	
}