org.eclipse.dltk.javascript.internal.ui.JSModelLabelProvider.java Source code

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Here is the source code for org.eclipse.dltk.javascript.internal.ui.JSModelLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2010 xored software, Inc.
 *
 * 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 (Alex Panchenko)
 *******************************************************************************/
package org.eclipse.dltk.javascript.internal.ui;

import org.eclipse.dltk.core.IField;
import org.eclipse.dltk.core.IMember;
import org.eclipse.dltk.core.IMethod;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.dltk.internal.javascript.parser.JSModifiers;
import org.eclipse.dltk.ui.DLTKPluginImages;
import org.eclipse.dltk.ui.ScriptElementImageProvider;
import org.eclipse.dltk.ui.viewsupport.ImageDescriptorRegistry;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.BaseLabelProvider;
import org.eclipse.jface.viewers.DecorationOverlayIcon;
import org.eclipse.jface.viewers.IDecoration;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.swt.graphics.Image;

/**
 * @since 3.0
 */
public class JSModelLabelProvider extends BaseLabelProvider implements ILabelProvider {

    private final ImageDescriptorRegistry registry = new ImageDescriptorRegistry(false);

    public Image getImage(Object element) {
        if (element instanceof IMember) {
            final IMember method = (IMember) element;
            int flags;
            try {
                flags = method.getFlags();
            } catch (ModelException e) {
                flags = 0;
            }
            if ((flags & JSModifiers.DEPRECATED) != 0) {
                ImageDescriptor imageDescriptor = null;
                ImageDescriptor[] overlay = new ImageDescriptor[5];
                overlay[IDecoration.UNDERLAY] = DLTKPluginImages.DESC_OVR_DEPRECATED;
                if (element instanceof IMethod) {
                    try {
                        if (((IMethod) element).isConstructor()) {
                            overlay[IDecoration.TOP_RIGHT] = DLTKPluginImages.DESC_OVR_CONSTRUCTOR;
                        }
                    } catch (ModelException e) {
                    }
                    imageDescriptor = ScriptElementImageProvider.getMethodImageDescriptor(flags);
                } else if (element instanceof IField) {
                    imageDescriptor = ScriptElementImageProvider.getFieldImageDescriptor(flags);
                } else {
                    imageDescriptor = ScriptElementImageProvider.getTypeImageDescriptor(flags, false);
                }
                return registry.get(new DecorationOverlayIcon(registry.get(imageDescriptor), overlay));
            }
        }
        return null;
    }

    public String getText(Object element) {
        return null;
    }

    @Override
    public void dispose() {
        registry.dispose();
        super.dispose();
    }

}