ArrangementTableLabelProvider.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.arrange;

import gov.loc.mets.DivType;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.ILabelDecorator;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelDecorator;
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.views.LabelImageFactory;

public class ArrangementTableLabelProvider implements ITableLabelProvider {
	@SuppressWarnings("unused")
	private static final Logger log = LoggerFactory.getLogger(ArrangementTableLabelProvider.class);
	public static final String[] headers = { "Name", "Status" };
	public static final int[] bounds = { 400, 80 };
	public static final int COL_NAME = 0;
	public static final int COL_STATUS = 1;
	private DecoratingLabelProvider provider = (DecoratingLabelProvider) WorkbenchLabelProvider
			.getDecoratingWorkbenchLabelProvider();
	private ILabelDecorator decorator = provider.getLabelDecorator();

	/*
	 * (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 (COL_NAME == columnIndex) {
			// TODO add adapters from DivType to corresponding IResources
			if (element instanceof DivType) {
				DivType d = (DivType) element;
				Object adapted = Platform.getAdapterManager().getAdapter(d, IResource.class);
				if (adapted != null) {
					IResource r = (IResource) adapted;
					result = provider.getImage(r);
				}
			} else if (element instanceof IProject) {
				return null;
			}
			if (result == null) {
				result = LabelImageFactory.getImageForObject(element);
			}
			if (decorator != null) {
				if (decorator instanceof LabelDecorator) {
					LabelDecorator ld2 = (LabelDecorator) decorator;
					Image decorated = ld2.decorateImage(result, element, provider.getDecorationContext());
					if (decorated != null) {
						return decorated;
					}
				} else {
					Image decorated = decorator.decorateImage(result, element);
					if (decorated != null) {
						return decorated;
					}
				}
			}
		}
		return result;
	}

	@Override
	public String getColumnText(Object element, int columnIndex) {
		if (element instanceof IProject) {
			IProject p = (IProject) element;
			switch (columnIndex) {
				case (COL_NAME):
					return provider.getText(element);
					// return p.getName();
				case (COL_STATUS):
					if (p.isOpen()) {
						return "open";
					} else {
						return "closed";
					}
			}
		}
		// it is a DivType
		DivType d = (DivType) element;
		switch (columnIndex) {
			case (COL_NAME):
				// return provider.getText(element);
				return d.getLabel();
			default:
				return "n/a";
		}
	}

	@Override
	public void addListener(ILabelProviderListener listener) {
		this.provider.addListener(listener);
	}

	@Override
	public void dispose() {
	}

	@Override
	public boolean isLabelProperty(Object element, String property) {
		return this.provider.isLabelProperty(element, property);
	}

	@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) {
	// log.debug("decorating Image for Div");
	// 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);
	// }

}