fr.inria.atlanmod.emfviews.ui.EmfViewsUIPlugin.java Source code

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Here is the source code for fr.inria.atlanmod.emfviews.ui.EmfViewsUIPlugin.java

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/*******************************************************************************
 * Copyright (c) 2013 INRIA.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Juan David Villa Calle - initial API and implementation
 *******************************************************************************/
package fr.inria.atlanmod.emfviews.ui;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;

public class EmfViewsUIPlugin extends AbstractUIPlugin {

    /** The plugin id. */
    public static final String PLUGIN_ID = "fr.inria.atlanmod.emfviews.ui"; //$NON-NLS-1$

    /** The shared instance. */
    private static EmfViewsUIPlugin plugin;

    /**
     * Gets the image at the given plug-in relative path.
     */
    private static Map<String, Image> path2image = new HashMap<String, Image>();

    /** Resource bundle. */
    private ResourceBundle resourceBundle;

    public EmfViewsUIPlugin() {
        super();
        plugin = this;

    }

    public static EmfViewsUIPlugin getDefault() {
        return plugin;
    }

    /**
     * Returns the string from the plugin's resource bundle, or 'key' if not
     * found.
     * 
     * @param key
     *            the default value
     * @return the string from the plugin's resource bundle, or 'key' if not
     *         found
     */
    public static String getResourceString(String key) {
        ResourceBundle bundle = EmfViewsUIPlugin.getDefault().getResourceBundle();
        try {
            return (bundle != null) ? bundle.getString(key) : key;
        } catch (MissingResourceException e) {
            return key;
        }
    }

    /**
     * Returns the plugin's resource bundle.
     * 
     * @return the plugin's resource bundle
     */
    public ResourceBundle getResourceBundle() {
        return resourceBundle;
    }

    /**
     * Looks for an image in the icons folder.
     * 
     * @param path
     *            the image path
     * @return the searched Image
     */
    public static Image getImage(String path) {
        Image result = path2image.get(path);
        if (result == null && !path2image.containsKey(path)) {
            ImageDescriptor descriptor = getImageDescriptor(path);
            if (descriptor != null) {
                result = descriptor.createImage();
                path2image.put(path, result);
            }
        }
        if (result != null) {
            if (result.isDisposed()) {
                result = null;
            }
        }
        return result;
    }

    /**
     * Returns the image descriptor with the given relative path.
     * 
     * @param name
     *            the image name
     * @return the image descriptor
     */
    public static ImageDescriptor getImageDescriptor(String name) {
        if (Platform.isRunning()) {
            String pluginDir = plugin.getBundle().getEntry("/").toString(); //$NON-NLS-1$
            String iconPath = "icons/"; //$NON-NLS-1$
            try {
                return ImageDescriptor.createFromURL(new URL(pluginDir + iconPath + name));
            } catch (MalformedURLException mfe) {
                return ImageDescriptor.getMissingImageDescriptor();
            }
        }
        return null;
    }

}