org.mxupdate.eclipse.mxadapter.MXDecorator.java Source code

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Here is the source code for org.mxupdate.eclipse.mxadapter.MXDecorator.java

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/*
 * Copyright 2008-2010 The MxUpdate Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Revision:        $Rev$
 * Last Changed:    $Date$
 * Last Changed By: $Author$
 */

package org.mxupdate.eclipse.mxadapter;

import org.eclipse.core.resources.IFile;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IDecoration;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.ILightweightLabelDecorator;
import org.mxupdate.eclipse.Activator;
import org.mxupdate.eclipse.adapter.IDeploymentAdapter;

/**
 * MX Update Eclipse plug-in specific decorator which evaluates depending on
 * the file prefixes and suffixes the related images.
 *
 * @author The MxUpdate Team
 * @version $Id$
 */
public class MXDecorator implements ILightweightLabelDecorator {

    /**
     * Depending on the file suffixes and prefixes the related image descriptor
     * is selected and shown as decorator image.
     *
     * @param _obj          object which must be checked for decoration
     * @param _decoration   decoration from Eclipse where the images are
     *                      "overlayed" on the top left
     */
    public void decorate(final Object _obj, final IDecoration _decoration) {
        final IFile file = (IFile) _obj;
        try {
            final IDeploymentAdapter adapter = Activator.getDefault().getAdapter(file.getProject());
            if (adapter != null) {
                final ImageDescriptor imageDesc = adapter.getImageDescriptor(file);
                if (imageDesc != null) {
                    _decoration.addOverlay(imageDesc, IDecoration.TOP_LEFT);
                }
            }
        } catch (final Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    /**
     * Method stub to implement interface {@link ILightweightLabelDecorator}.
     *
     * @param _ilabelproviderlistener   not used
     */
    public void addListener(final ILabelProviderListener _ilabelproviderlistener) {
    }

    /**
     * Method stub to implement interface {@link ILightweightLabelDecorator}.
     */
    public void dispose() {
    }

    /**
     * Method stub to implement interface {@link ILightweightLabelDecorator}.
     *
     * @return always <i>false</i>
     */
    public boolean isLabelProperty(final Object _obj, final String _s) {
        return false;
    }

    /**
     * Method stub to implement interface {@link ILightweightLabelDecorator}.
     *
     * @param _ilabelproviderlistener   not used
     */
    public void removeListener(final ILabelProviderListener _ilabelproviderlistener) {
    }
}