org.eclipse.ptp.etfw.tau.LaunchImages.java Source code

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Here is the source code for org.eclipse.ptp.etfw.tau.LaunchImages.java

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/****************************************************************************
 *         Tuning and Analysis Utilities
 *         http://www.cs.uoregon.edu/research/paracomp/tau
 ****************************************************************************
 * Copyright (c) 1997-2006
 *    Department of Computer and Information Science, University of Oregon
 *    Advanced Computing Laboratory, Los Alamos National Laboratory
 *    Research Center Juelich, ZAM Germany   
 *
 * 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:
 *    Wyatt Spear - current implementation
 *    modified from version provided by LANL
 *******************************************************************************/
package org.eclipse.ptp.etfw.tau;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
//import org.eclipse.ptp.etfw.tau.core.TAULaunchPlugin;
//import org.eclipse.ptp.etfw.tau.Activator;
import org.eclipse.ptp.etfw.tau.messages.Messages;
import org.eclipse.swt.graphics.Image;

/**
 * Manages graphics/icons for the TAU launch system
 * 
 * @author wspear
 * 
 */
public class LaunchImages {
    private static final String NAME_PREFIX = "org.eclipse.ptp.etfw.tau.core."; //$NON-NLS-1$
    private static final int NAME_PREFIX_LENGTH = NAME_PREFIX.length();

    private static URL iconBaseURL = null;

    static {
        final String pathSuffix = "icons/"; //$NON-NLS-1$
        iconBaseURL = Activator.getDefault().getBundle().getEntry(pathSuffix);
    }

    // The plugin registry
    private static ImageRegistry imageRegistry = null;
    private static HashMap<String, ImageDescriptor> avoidSWTErrorMap = null;

    public static final String IMG_PARALLEL_TAB = NAME_PREFIX + "parallel_tab.gif"; //$NON-NLS-1$
    public static final String IMG_ANALYSIS_TAB = NAME_PREFIX + "tauLogo.gif";//parallel_tab.gif //$NON-NLS-1$
    public static final String IMG_ARGUMENTS_TAB = NAME_PREFIX + "arguments_tab.gif"; //$NON-NLS-1$
    public static final String IMG_MAIN_TAB = NAME_PREFIX + "main_tab.gif"; //$NON-NLS-1$
    public static final String IMG_DEBUGGER_TAB = NAME_PREFIX + "debugger_tab.gif"; //$NON-NLS-1$

    public static final ImageDescriptor DESC_PARALLEL_TAB = createManaged(IMG_PARALLEL_TAB);
    public static final ImageDescriptor DESC_ANALYSIS_TAB = createManaged(IMG_ANALYSIS_TAB);
    public static final ImageDescriptor DESC_ARGUMENTS_TAB = createManaged(IMG_ARGUMENTS_TAB);
    public static final ImageDescriptor DESC_MAIN_TAB = createManaged(IMG_MAIN_TAB);
    public static final ImageDescriptor DESC_DEBUGGER_TAB = createManaged(IMG_DEBUGGER_TAB);

    private static ImageDescriptor createManaged(String name) {
        try {
            final ImageDescriptor result = ImageDescriptor
                    .createFromURL(makeIconFileURL(name.substring(NAME_PREFIX_LENGTH)));
            if (avoidSWTErrorMap == null) {
                avoidSWTErrorMap = new HashMap<String, ImageDescriptor>();
            }
            avoidSWTErrorMap.put(name, result);
            if (imageRegistry != null) {
                System.out.println(Messages.LaunchImages_InternalErrorRegDefined);
            }
            return result;
        } catch (final MalformedURLException e) {
            return ImageDescriptor.getMissingImageDescriptor();
        }
    }

    /*
     * private static ImageDescriptor create(String name) {
     * try {
     * return ImageDescriptor.createFromURL(makeIconFileURL(name));
     * } catch (MalformedURLException e) {
     * return ImageDescriptor.getMissingImageDescriptor();
     * }
     * }
     */
    public static ImageDescriptor getDescriptor(String key) {
        return getImageRegistry().getDescriptor(key);
    }

    /**
     * Returns the image managed under the given key in this registry.
     * 
     * @param key
     *            the image's key
     * @return the image managed under the given key
     */
    public static Image getImage(String key) {
        return getImageRegistry().get(key);
    }

    private static ImageRegistry getImageRegistry() {
        if (imageRegistry == null) {
            imageRegistry = new ImageRegistry();
            for (final String string : avoidSWTErrorMap.keySet()) {
                final String key = string;
                imageRegistry.put(key, avoidSWTErrorMap.get(key));
            }
            avoidSWTErrorMap = null;
        }
        return imageRegistry;
    }

    private static URL makeIconFileURL(String name) throws MalformedURLException {
        if (iconBaseURL == null) {
            throw new MalformedURLException();
        }

        return new URL(iconBaseURL, name);
    }
}