org.eclipse.contribution.visualiser.core.resources.VisualiserImages.java Source code

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Here is the source code for org.eclipse.contribution.visualiser.core.resources.VisualiserImages.java

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/*******************************************************************************
 * Copyright (c) 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     Sian Whiting - initial version
 *******************************************************************************/
package org.eclipse.contribution.visualiser.core.resources;

import java.net.MalformedURLException;
import java.net.URL;

import org.eclipse.contribution.visualiser.VisualiserPlugin;
import org.eclipse.jface.resource.ImageDescriptor;

/**
 * Central point for Images in the Visualiser plugin
 */
public class VisualiserImages {

    // URL for the directory containing the Visualiser icons
    private static URL iconBaseURL = null;

    public static final ImageDescriptor MEMBER_VIEW = create("member_view.gif"); //$NON-NLS-1$
    public static final ImageDescriptor CLASS_VIEW = create("class_view.gif"); //$NON-NLS-1$
    public static final ImageDescriptor PACKAGE_VIEW = create("package_view.gif"); //$NON-NLS-1$
    public static final ImageDescriptor GROUP_VIEW = create("group_view.gif"); //$NON-NLS-1$
    public static final ImageDescriptor FILE_VIEW = create("file_view.gif"); //$NON-NLS-1$
    public static final ImageDescriptor FOLDER_VIEW = create("folder_view.gif"); //$NON-NLS-1$
    public static final ImageDescriptor ZOOM_IN = create("zoom_in.gif"); //$NON-NLS-1$
    public static final ImageDescriptor ZOOM_OUT = create("zoom_out.gif"); //$NON-NLS-1$
    public static final ImageDescriptor LIMIT_MODE = create("limit_mode.gif"); //$NON-NLS-1$
    public static final ImageDescriptor LOCK = create("lock.gif"); //$NON-NLS-1$
    public static final ImageDescriptor PREFERENCES = create("preferences.gif"); //$NON-NLS-1$
    public static final ImageDescriptor CHANGE_STRIPE_MODE = create("change_mode.gif"); //$NON-NLS-1$
    public static final ImageDescriptor FIT_TO_VIEW = create("fit_to_view.gif"); //$NON-NLS-1$

    /**
     * Get the URL for an icon file
     * @param name
     * @return
     * @throws MalformedURLException
     */
    private static URL makeIconFileURL(String name) throws MalformedURLException {
        if (iconBaseURL == null) {
            String pathSuffix = "icons/"; //$NON-NLS-1$ 
            iconBaseURL = new URL(VisualiserPlugin.getDefault().getBundle().getEntry("/"), pathSuffix); //$NON-NLS-1$
        }
        return new URL(iconBaseURL, name);
    }

    /**
     * Create an image with the given name in the icons/cme directory.
     * @param name
     * @return the ImageDescriptor created
     */
    private static ImageDescriptor create(String name) {
        try {
            return ImageDescriptor.createFromURL(makeIconFileURL(name));
        } catch (MalformedURLException e) {
            return ImageDescriptor.getMissingImageDescriptor();
        }
    }

}