org.eclipse.rcptt.ecl.debug.ui.Images.java Source code

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Here is the source code for org.eclipse.rcptt.ecl.debug.ui.Images.java

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/*******************************************************************************
 * Copyright (c) 2009, 2014 Xored Software Inc and others.
 * 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:
 *     Xored Software Inc - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.eclipse.rcptt.ecl.debug.ui;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.viewers.DecorationOverlayIcon;
import org.eclipse.swt.graphics.Image;

public class Images {

    private static final String PREFIX = "icons/"; //$NON-NLS-1$

    public static final String LOCAL_VARIABLE = PREFIX + "localvariable_obj.gif"; //$NON-NLS-1$
    public static final String VARIABLE = PREFIX + "field_public_obj.gif"; //$NON-NLS-1$
    public static final String FIELD = PREFIX + "field_protected_obj.gif"; //$NON-NLS-1$
    public static final String OBJECT = PREFIX + "object_icon.gif"; //$NON-NLS-1$
    public static final String REFERENCE = PREFIX + "object_icon.gif"; //$NON-NLS-1$

    public synchronized static Image getImage(String key) {
        ImageRegistry registry = EclDebugUIPlugin.getDefault().getImageRegistry();
        Image image = registry.get(key);
        if (image == null || image.isDisposed()) {
            ImageDescriptor descriptor = getImageDescriptor(key);
            image = descriptor.createImage();
            registry.remove(key);
            registry.put(key, image);
        }
        return image;
    }

    public synchronized static Image getOverlayImageBottomRight(String key, String decor) {
        ImageRegistry registry = EclDebugUIPlugin.getDefault().getImageRegistry();
        Image image = registry.get(key + ".decorator.br" + decor); //$NON-NLS-1$
        if (image == null) {
            ImageDescriptor descriptor = getOverlayImageDescriptor(key,
                    new String[] { null, null, null, decor, null });
            image = descriptor.createImage();
            registry.put(key + ".decorator.br" + decor, image); //$NON-NLS-1$
        }
        return image;
    }

    public synchronized static ImageDescriptor getOverlayImageBottomRight(ImageDescriptor original, String key,
            String decor) {
        ImageRegistry registry = EclDebugUIPlugin.getDefault().getImageRegistry();
        ImageDescriptor image = registry.getDescriptor(key + ".decorator.br" + decor); //$NON-NLS-1$
        if (image == null) {
            ImageDescriptor descriptor = getOverlayImageDescriptor(original, key,
                    new String[] { null, null, null, decor, null });
            registry.put(key + ".decorator.br" + decor, descriptor); //$NON-NLS-1$
        }
        return image;
    }

    public synchronized static Image getOverlayImageBottomLeft(String key, String descriptorKey) {
        ImageRegistry registry = EclDebugUIPlugin.getDefault().getImageRegistry();
        Image image = registry.get(key + ".decorator.bl" + descriptorKey); //$NON-NLS-1$
        if (image == null) {
            ImageDescriptor descriptor = getOverlayImageDescriptor(key,
                    new String[] { null, null, descriptorKey, null, null });
            image = descriptor.createImage();
            registry.put(key + ".decorator.bl" + descriptorKey, image); //$NON-NLS-1$
        }
        return image;
    }

    private synchronized static ImageDescriptor getOverlayImageDescriptor(String key, String[] descriptorKeys) {
        ImageDescriptor[] decorators = new ImageDescriptor[descriptorKeys.length];
        for (int i = 0; i < decorators.length; i++) {
            if (descriptorKeys[i] != null) {
                decorators[i] = getImageDescriptor(descriptorKeys[i]);
            }
        }
        return new DecorationOverlayIcon(getImage(key), decorators);
    }

    private synchronized static ImageDescriptor getOverlayImageDescriptor(ImageDescriptor original, String key,
            String[] descriptorKeys) {
        ImageDescriptor[] decorators = new ImageDescriptor[descriptorKeys.length];
        for (int i = 0; i < decorators.length; i++) {
            if (descriptorKeys[i] != null) {
                decorators[i] = getImageDescriptor(descriptorKeys[i]);
            }
        }
        return new DecorationOverlayIcon(original.createImage(), decorators);
    }

    public static ImageDescriptor getImageDescriptor(String key) {
        return EclDebugUIPlugin.imageDescriptorFromPlugin(EclDebugUIPlugin.PLUGIN_ID, key);
    }
}