com.bb.extensions.plugin.unittests.internal.navigator.UnitTestsLabelProvider.java Source code

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Here is the source code for com.bb.extensions.plugin.unittests.internal.navigator.UnitTestsLabelProvider.java

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/*******************************************************************************
 * Copyright (C) 2013 Research In Motion Limited
 *
 * 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
 *******************************************************************************/

package com.bb.extensions.plugin.unittests.internal.navigator;

import java.net.URL;

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

import com.bb.extensions.plugin.unittests.Activator;

/**
 * @author tallen
 * 
 */
public class UnitTestsLabelProvider implements ILabelProvider {
    /**
     * The image registry object
     */
    private ImageRegistry images = new ImageRegistry();

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.
     * jface.viewers.ILabelProviderListener)
     */
    @Override
    public void addListener(ILabelProviderListener listener) {
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
     */
    @Override
    public void dispose() {
        images.dispose();
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang
     * .Object, java.lang.String)
     */
    @Override
    public boolean isLabelProperty(Object element, String property) {
        return true;
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse
     * .jface.viewers.ILabelProviderListener)
     */
    @Override
    public void removeListener(ILabelProviderListener listener) {
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
     */
    @Override
    public Image getImage(Object element) {
        Image result = null;

        if (element instanceof IUnitTestsNavigatorElement) {
            Object icon = ((IUnitTestsNavigatorElement) element).getIcon();

            if (icon instanceof String) {
                // it's a registered key
                result = Activator.getDefault().getImageRegistry().get((String) icon);
            } else if (icon instanceof Image) {
                result = (Image) icon;
            } else {
                ImageDescriptor descriptor = null;
                String key = null;

                if (icon instanceof URL) {
                    key = icon.toString();
                    descriptor = ImageDescriptor.createFromURL((URL) icon);
                } else if (icon instanceof ImageDescriptor) {
                    key = icon.toString(); // URLImageDescriptors have sensible
                    // toString()s
                    descriptor = (ImageDescriptor) icon;
                }

                if (key != null) {
                    result = images.get(key);
                    if (result == null) {
                        images.put(key, descriptor);
                        result = images.get(key);
                    }
                }
            }
        }

        return result;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
     */
    @Override
    public String getText(Object element) {
        if (element instanceof IUnitTestsNavigatorElement) {
            return ((IUnitTestsNavigatorElement) element).getLabel();
        }
        return new String();
    }

}