org.ow2.petals.client.swt.ImageIds.java Source code

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Here is the source code for org.ow2.petals.client.swt.ImageIds.java

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/****************************************************************************
 *
 * Copyright (c) 2012, Linagora
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *****************************************************************************/

package org.ow2.petals.client.swt;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.util.logging.Level;

import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.widgets.Display;

/**
 * @author Vincent Zurczak - Linagora
 */
public class ImageIds {

    public static final String PETALS_SPLASH = "/petals_splash.png";
    public static final String SEND_64x64 = "/send_64x64.png";

    public static final String ERROR_16x16 = "/error_16x16.gif";
    public static final String WARNING_16x16 = "/warning_16x16.gif";
    public static final String INFO_16x16 = "/info_16x16.gif";

    public static final String CONTRACT_16x16 = "/contract_16x16.gif";
    public static final String SERVICE_16x16 = "/service_16x16.gif";
    public static final String ENDPOINT_16x16 = "/endpoint_16x16.gif";
    public static final String VIEW_MENU_16x16 = "/view_menu_16x16.gif";
    public static final String SEARCH_16x16 = "/search_16x16.png";

    public static final String PETALS_16x16 = "/petals_16x16.png";
    public static final String PETALS_32x32 = "/petals_32x32.png";
    public static final String PETALS_48x48 = "/petals_48x48.png";

    /**
     * Loads all the images referenced by the class constants, into the JFace Resource manager.
     */
    public static void loadImageInJFaceResources(ClientApplication clientapp) {

        for (Field f : ImageIds.class.getDeclaredFields()) {
            try {
                String path = (String) f.get(String.class);
                if (path != null) {
                    Image img = loadImage(path, clientapp);
                    if (img != null)
                        JFaceResources.getImageRegistry().put(path, img);
                }

            } catch (IllegalArgumentException e) {
                clientapp.log(null, e, Level.INFO);

            } catch (IllegalAccessException e) {
                clientapp.log(null, e, Level.INFO);
            }
        }
    }

    public static void main(String[] args) {
        loadImageInJFaceResources(null);
    }

    /**
     * Loads an image from the resources.
     * @param relativePath the relative path of the image (class loader search)
     * @param clientApp the client application
     * @return an image, or null if it could not be created
     */
    private static Image loadImage(String relativePath, ClientApplication clientApp) {

        Image result = null;
        InputStream in = null;
        try {
            in = SwtUtils.class.getResourceAsStream(relativePath);
            if (in == null)
                throw new NullPointerException("No image could be found at " + relativePath);

            ImageData imgData = new ImageData(in);
            result = new Image(Display.getDefault(), imgData);

        } catch (Exception e) {
            clientApp.log(null, e, Level.WARNING);

        } finally {
            try {
                if (in != null)
                    in.close();
            } catch (IOException e) {
                // nothing
            }
        }

        return result;
    }

}