/*******************************************************************************
 * Copyright (C) 2009 The University of Manchester
 *
 * Modifications to the initial code base are copyright of their respective
 * authors, or their employers as appropriate.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This program 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307
 ******************************************************************************/

package net.sf.taverna.t2.ui.perspectives.myexperiment;

import java.io.InputStream;
import java.net.URL;

import javax.swing.ImageIcon;

import net.sf.taverna.t2.ui.perspectives.myexperiment.model.Resource;
import net.sf.taverna.t2.workbench.ui.zaria.PerspectiveSPI;

import org.jdom.Element;

/**
 * @author Sergejs Aleksejevs, Jiten Bhagat
 */
public class MyExperimentPerspective implements PerspectiveSPI {
	// CONSTANTS
	// this is where all icons, stylesheet, etc are located
	private static final String BASE_RESOURCE_PATH = "/net/sf/taverna/t2/ui/perspectives/myexperiment/";
	public static final String PERSPECTIVE_NAME = "myExperiment";
	public static final String PLUGIN_VERSION = "0.2beta";

	// COMPONENTS
	private MainComponent perspectiveMainComponent;
	private boolean visible = true;

	public ImageIcon getButtonIcon() {
		URL iconURL = MyExperimentPerspective.getLocalResourceURL("myexp_icon16x16");
		if (iconURL == null) {
			return null;
		} else {
			return new ImageIcon(iconURL);
		}
	}

	public InputStream getLayoutInputStream() {
		return getClass().getResourceAsStream("myexperiment-perspective.xml");
	}

	public String getText() {
		return PERSPECTIVE_NAME;
	}

	public boolean isVisible() {
		return visible;
	}

	public int positionHint() {
		// this determines position of myExperiment perspective in the
		// bar with perspective buttons (currently makes it the last in the
		// list)
		return 30;
	}

	public void setVisible(boolean visible) {
		this.visible = visible;

	}

	public void update(Element layoutElement) {
		// Not sure what to do here
	}

	public void setMainComponent(MainComponent component) {
		this.perspectiveMainComponent = component;
	}

	/**
	 * Returns the instance of the main component of this perspective.
	 */
	public MainComponent getMainComponent() {
		return this.perspectiveMainComponent;
	}

	// a single point in the plugin where all resources are referenced
	public static URL getLocalResourceURL(String strResourceName) {
		String strResourcePath = MyExperimentPerspective.BASE_RESOURCE_PATH;

		if (strResourceName.equals("not_authorized_icon"))
			strResourcePath += "denied.png";
		if (strResourceName.equals("failure_icon"))
			strResourcePath += "denied.png";
		else if (strResourceName.equals("success_icon"))
			strResourcePath += "tick.png";
		else if (strResourceName.equals("spinner"))
			strResourcePath += "ajax-loader.gif";
		else if (strResourceName.equals("spinner_stopped"))
			strResourcePath += "ajax-loader-still.gif";
		else if (strResourceName.equals("external_link_small_icon"))
			strResourcePath += "external_link_listing_small.png";
		else if (strResourceName.equals("back_icon"))
			strResourcePath += "arrow_left.png";
		else if (strResourceName.equals("forward_icon"))
			strResourcePath += "arrow_right.png";
		else if (strResourceName.equals("refresh_icon"))
			strResourcePath += "arrow_refresh.png";
		else if (strResourceName.equals("favourite_icon"))
			strResourcePath += "star.png";
		else if (strResourceName.equals("add_favourite_icon"))
			strResourcePath += "favourite_add.png";
		else if (strResourceName.equals("delete_favourite_icon"))
			strResourcePath += "favourite_delete.png";
		else if (strResourceName.equals("destroy_icon"))
			strResourcePath += "cross.png";
		else if (strResourceName.equals("add_comment_icon"))
			strResourcePath += "comment_add.png";
		else if (strResourceName.equals("myexp_icon"))
			strResourcePath += "myexp_icon.png";
		else if (strResourceName.equals("myexp_icon16x16"))
			strResourcePath += "myexp_icon16x16.png";
		else if (strResourceName.equals("open_in_my_experiment_icon"))
			strResourcePath += "open_in_myExperiment.png";
		else if (strResourceName.equals("login_icon"))
			strResourcePath += "login.png";
		else if (strResourceName.equals("logout_icon"))
			strResourcePath += "logout.png";
		else if (strResourceName.equals("css_stylesheet"))
			strResourcePath += "styles.css";
		else {
			throw new java.lang.IllegalArgumentException(
					"Unknown myExperiment plugin resource requested; requested resource name was: "
							+ strResourceName);
		}

		// no exception was thrown, therefore the supplied resource name was
		// recognised;
		// return the local URL of that resource
		return (MyExperimentPerspective.class.getResource(strResourcePath));
	}

	// a single point in the plugin where all resources' icons are referenced
	public static URL getLocalIconURL(int iResourceType) {
		String strResourcePath = MyExperimentPerspective.BASE_RESOURCE_PATH;

		switch (iResourceType) {
		case Resource.WORKFLOW:
			strResourcePath += "workflow.png";
			break;
		case Resource.FILE:
			strResourcePath += "file.png";
			break;
		case Resource.PACK:
			strResourcePath += "pack.png";
			break;
		case Resource.PACK_EXTERNAL_ITEM:
			strResourcePath += "remote_resource.png";
			break;
		case Resource.USER:
			strResourcePath += "user.png";
			break;
		case Resource.GROUP:
			strResourcePath += "group.png";
			break;
		case Resource.TAG:
			strResourcePath += "tag_blue.png";
			break;
		default:
			throw new java.lang.IllegalArgumentException(
					"Unknown myExperiment plugin resource requested; requested resource name was: "
							+ Resource.getResourceTypeName(iResourceType));
		}

		// no exception was thrown, therefore the supplied resource name was
		// recognised;
		// return the local URL of that resource
		return (MyExperimentPerspective.class.getResource(strResourcePath));
	}

}