OriginalsTableLabelProvider.java

/**
 * Copyright 2010 The University of North Carolina at Chapel Hill
 *
 * 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.
 */
package unc.lib.cdr.workbench.capture;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.IDelayedLabelDecorator;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.model.WorkbenchLabelProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import unc.lib.cdr.workbench.IResourceConstants;
import unc.lib.cdr.workbench.views.LabelImageFactory;

/**
 * @author Gregory Jansen
 * 
 */
public class OriginalsTableLabelProvider implements ITableLabelProvider, IDelayedLabelDecorator {
	private static final Logger log = LoggerFactory.getLogger(OriginalsTableLabelProvider.class);
	public static final String[] headers = { "Name", "Size", "Modified" };
	public static final int[] bounds = { 400, 80, 80 };
	public static final int COL_NAME = 0;
	public static final int COL_MODIFIED = 2;
	public static final int COL_SIZE = 1;
	private static DateFormat shortDate = SimpleDateFormat.getDateInstance(SimpleDateFormat.SHORT);
	private DecoratingLabelProvider provider = (DecoratingLabelProvider) WorkbenchLabelProvider
			.getDecoratingWorkbenchLabelProvider();
	private IDelayedLabelDecorator decorator = (IDelayedLabelDecorator) provider.getLabelDecorator();
	private LabelImageFactory imageFactory = new LabelImageFactory();

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang .Object, int)
	 */
	@Override
	public Image getColumnImage(Object element, int columnIndex) {
		Image result = null;
		if (columnIndex == 0) {
			result = provider.getImage(element);
			// result = imageFactory.getImageForObject(element);
		}
		return result;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang .Object, int)
	 */
	@Override
	public String getColumnText(Object element, int columnIndex) {
		String result = null;
		IResource r = null;
		if (element instanceof IResource) {
			r = (IResource) element;
		}
		try {
			switch (columnIndex) {
				case COL_NAME:
					result = provider.getText(element);
					break;
				case COL_MODIFIED:
					if (element instanceof IFolder || element instanceof IFile) {
						result = getModified(r);
					}
					break;
				case COL_SIZE:
					if (element instanceof IFolder || element instanceof IFile) {
						return getSize(r);
					}
					break;
			}
		} catch (CoreException e) {
			log.debug(e.getLocalizedMessage());
		}
		return result;
	}

	/**
	 * @param r
	 * @return
	 * @throws CoreException
	 */
	private String getSize(IResource r) throws CoreException {
		return r.getPersistentProperty(IResourceConstants.BYTE_SIZE);
	}

	/**
	 * @param r
	 * @return
	 * @throws CoreException
	 */
	private String getModified(IResource r) throws CoreException {
		String result = null;
		String ts = r.getPersistentProperty(IResourceConstants.MODIFIED_TIMESTAMP);
		if (ts != null) {
			Date modified = new Date(Long.parseLong(ts));
			result = OriginalsTableLabelProvider.shortDate.format(modified);
		}
		return result;
	}

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

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
	 */
	@Override
	public void 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 this.provider.isLabelProperty(element, property);
	}

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

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.ILabelDecorator#decorateImage(org.eclipse.swt .graphics.Image, java.lang.Object)
	 */
	@Override
	public Image decorateImage(Image image, Object element) {
		return decorator.decorateImage(image, element);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.ILabelDecorator#decorateText(java.lang.String, java.lang.Object)
	 */
	@Override
	public String decorateText(String text, Object element) {
		return decorator.decorateText(text, element);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.IDelayedLabelDecorator#prepareDecoration(java .lang.Object, java.lang.String)
	 */
	@Override
	public boolean prepareDecoration(Object element, String originalText) {
		return decorator.prepareDecoration(element, originalText);
	}

}