org.eclipse.babel.tapiji.tools.rbmanager.ImageUtils.java Source code

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Here is the source code for org.eclipse.babel.tapiji.tools.rbmanager.ImageUtils.java

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/*******************************************************************************
 * Copyright (c) 2007 Michael Gasser.
 * 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:
 *    Michael Gasser - initial implementation
 ******************************************************************************/
package org.eclipse.babel.tapiji.tools.rbmanager;

import java.io.File;
import java.net.URISyntaxException;
import java.util.Locale;

import org.eclipse.babel.tapiji.tools.core.util.OverlayIcon;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;

public class ImageUtils {
    private static final ImageRegistry imageRegistry = new ImageRegistry();

    private static final String WARNING_FLAG_IMAGE = "warning_flag.gif"; //$NON-NLS-1$
    private static final String FRAGMENT_FLAG_IMAGE = "fragment_flag.gif"; //$NON-NLS-1$
    public static final String WARNING_IMAGE = "warning.gif"; //$NON-NLS-1$
    public static final String FRAGMENT_PROJECT_IMAGE = "fragmentproject.gif"; //$NON-NLS-1$
    public static final String RESOURCEBUNDLE_IMAGE = "resourcebundle.gif"; //$NON-NLS-1$
    public static final String EXPAND = "expand.gif"; //$NON-NLS-1$
    public static final String DEFAULT_LOCALICON = File.separatorChar + "countries" + File.separatorChar + "_f.gif";
    public static final String LOCATION_WITHOUT_ICON = File.separatorChar + "countries" + File.separatorChar
            + "un.gif";

    /**
     * @return a Image from the folder 'icons'
     * @throws URISyntaxException
     */
    public static Image getBaseImage(String imageName) {
        Image image = imageRegistry.get(imageName);
        if (image == null) {
            ImageDescriptor descriptor = RBManagerActivator.getImageDescriptor(imageName);

            if (descriptor.getImageData() != null) {
                image = descriptor.createImage(false);
                imageRegistry.put(imageName, image);
            }
        }

        return image;
    }

    /**
     * @param baseImage
     * @return baseImage with a overlay warning-image
     */
    public static Image getImageWithWarning(Image baseImage) {
        String imageWithWarningId = baseImage.toString() + ".w";
        Image imageWithWarning = imageRegistry.get(imageWithWarningId);

        if (imageWithWarning == null) {
            Image warningImage = getBaseImage(WARNING_FLAG_IMAGE);
            imageWithWarning = new OverlayIcon(baseImage, warningImage, OverlayIcon.BOTTOM_LEFT).createImage();
            imageRegistry.put(imageWithWarningId, imageWithWarning);
        }

        return imageWithWarning;
    }

    /**
     * 
     * @param baseImage
     * @return baseImage with a overlay fragment-image
     */
    public static Image getImageWithFragment(Image baseImage) {
        String imageWithFragmentId = baseImage.toString() + ".f";
        Image imageWithFragment = imageRegistry.get(imageWithFragmentId);

        if (imageWithFragment == null) {
            Image fragement = getBaseImage(FRAGMENT_FLAG_IMAGE);
            imageWithFragment = new OverlayIcon(baseImage, fragement, OverlayIcon.BOTTOM_RIGHT).createImage();
            imageRegistry.put(imageWithFragmentId, imageWithFragment);
        }

        return imageWithFragment;
    }

    /**
     * @return a Image with a flag of the given country
     */
    public static Image getLocalIcon(Locale locale) {
        String imageName;
        Image image = null;

        if (locale != null && !locale.getCountry().equals("")) {
            imageName = File.separatorChar + "countries" + File.separatorChar + locale.getCountry().toLowerCase()
                    + ".gif";
            image = getBaseImage(imageName);
        } else {
            if (locale != null) {
                imageName = File.separatorChar + "countries" + File.separatorChar + "l_"
                        + locale.getLanguage().toLowerCase() + ".gif";
                image = getBaseImage(imageName);
            } else {
                imageName = DEFAULT_LOCALICON.toLowerCase(); // Default locale
                // icon
                image = getBaseImage(imageName);
            }
        }

        if (image == null)
            image = getBaseImage(LOCATION_WITHOUT_ICON.toLowerCase());
        return image;
    }

}