TypeRandomColorHandler.java

/*
 * Copyright (c) 2012 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     HUMBOLDT EU Integrated Project #030962
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.ui.style.handler;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.ui.PlatformUI;
import org.geotools.styling.Style;

import com.google.common.collect.SetMultimap;

import eu.esdihumboldt.hale.common.instance.model.DataSet;
import eu.esdihumboldt.hale.common.schema.model.TypeDefinition;
import eu.esdihumboldt.hale.ui.common.service.style.StyleService;
import eu.esdihumboldt.hale.ui.style.StyleHelper;
import eu.esdihumboldt.hale.ui.style.dialog.FeatureStyleDialog;

/**
 * Shows a {@link FeatureStyleDialog} for a selected {@link TypeDefinition} or
 * entity definition that represents a type.
 * 
 * @author Simon Templer
 */
public class TypeRandomColorHandler extends AbstractHandler {

	/**
	 * @see IHandler#execute(ExecutionEvent)
	 */
	@Override
	public Object execute(ExecutionEvent event) throws ExecutionException {

		// collect types and associated data sets
		SetMultimap<DataSet, TypeDefinition> types = TypeStyleHandler
				.collectTypesFromSelection(event);

		Style style = StyleHelper.getRandomStyles(types);

		StyleService styleService = PlatformUI.getWorkbench().getService(StyleService.class);
		styleService.addStyles(style);

		return null;
	}

}