nz.co.senanque.madura.Images.java Source code

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Here is the source code for nz.co.senanque.madura.Images.java

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/*******************************************************************************
 * Copyright (c)2014 Prometheus Consulting
 *
 * 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
 *******************************************************************************/
package nz.co.senanque.madura;

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

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.resource.ImageDescriptor;

/**
 * Convenience class for storing references to image descriptors
 * @author Roger Parkinson
 */
public class Images {
    static final URL BASE_URL = getBaseURL();
    public static final ImageDescriptor QUEUE_IMAGE;
    public static final ImageDescriptor PROCESS_IMAGE;
    public static final ImageDescriptor RULE_IMAGE;
    public static final ImageDescriptor FORMULA_IMAGE;
    public static final ImageDescriptor CONSTRAINT_IMAGE;
    public static final ImageDescriptor TAG_IMAGE;

    static {
        QUEUE_IMAGE = createImageDescriptor("queue.gif"); //$NON-NLS-1$
        PROCESS_IMAGE = createImageDescriptor("process.gif"); //$NON-NLS-1$
        RULE_IMAGE = createImageDescriptor("rule.gif"); //$NON-NLS-1$
        CONSTRAINT_IMAGE = createImageDescriptor("constraint.gif"); //$NON-NLS-1$
        FORMULA_IMAGE = createImageDescriptor("formula.gif"); //$NON-NLS-1$
        TAG_IMAGE = createImageDescriptor("rules.gif"); //$NON-NLS-1$
    }

    /**
     * Utility method to create an <code>ImageDescriptor</code> from a path to a
     * file.
     */
    private static ImageDescriptor createImageDescriptor(String path) {
        try {
            URL url = new URL(BASE_URL, path);
            return ImageDescriptor.createFromURL(url);
        } catch (MalformedURLException e) {
        }
        return ImageDescriptor.getMissingImageDescriptor();
    }

    private static URL getBaseURL() {
        URL url = FileLocator.find(Platform.getBundle(MaduraPlugin.PLUGIN_ID), new Path("icons/"), null);
        return url;
    }
}