/*
* uDig - User Friendly Desktop Internet GIS client
* (C) HydroloGIS - www.hydrologis.com
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the HydroloGIS BSD
* License v1.0 (http://udig.refractions.net/files/hsd3-v10.html).
*/
package org.locationtech.udig.tools.jgrass.orientationview;
import java.util.LinkedList;
import java.util.List;
import org.locationtech.udig.project.ILayer;
import org.locationtech.udig.project.command.CompositeCommand;
import org.locationtech.udig.project.command.UndoableMapCommand;
import org.locationtech.udig.project.command.factory.EditCommandFactory;
import org.locationtech.udig.project.ui.ApplicationGIS;
import org.locationtech.udig.project.ui.tool.IToolContext;
import org.locationtech.udig.ui.operations.IOp;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.swt.widgets.Display;
import org.geotools.data.FeatureSource;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.data.simple.SimpleFeatureIterator;
import org.geotools.data.simple.SimpleFeatureSource;
import org.opengis.feature.simple.SimpleFeature;
import com.vividsolutions.jts.geom.Geometry;
import org.locationtech.udig.tools.jgrass.i18n.Messages;
import org.locationtech.udig.tools.jgrass.utils.OperationUtils;
/**
* Operation that inverts the orientation of selected features.
*
* @author Andrea Antonello (www.hydrologis.com)
*/
public class ReverseFeatureOrientation extends OperationUtils implements IOp {
private int count = 0;
public void op( final Display display, Object target, IProgressMonitor monitor ) throws Exception {
ILayer selectedLayer = (ILayer) target;
SimpleFeatureSource featureSource = (SimpleFeatureSource) selectedLayer.getResource(FeatureSource.class,
new SubProgressMonitor(monitor, 1));
if (featureSource == null) {
return;
}
SimpleFeatureCollection featureCollection = featureSource.getFeatures(selectedLayer.getQuery(true));
SimpleFeatureIterator featureIterator = featureCollection.features();
EditCommandFactory cmdFactory = EditCommandFactory.getInstance();
List<UndoableMapCommand> cmdList = new LinkedList<UndoableMapCommand>();
count = 0;
while( featureIterator.hasNext() ) {
SimpleFeature feature = featureIterator.next();
Geometry geometry = (Geometry) feature.getDefaultGeometry();
Geometry newGeometry = geometry.reverse();
UndoableMapCommand setGeometryCmd = cmdFactory.createSetGeomteryCommand(feature, selectedLayer, newGeometry);
cmdList.add(setGeometryCmd);
count++;
}
CompositeCommand compositeCommand = new CompositeCommand(cmdList);
IToolContext toolContext = ApplicationGIS.createContext(ApplicationGIS.getActiveMap());
toolContext.sendSyncCommand(compositeCommand);
showMessage(display, Messages.getString("ReverseFeatureOrientation_info"), //$NON-NLS-1$
Messages.getString("ReverseFeatureOrientation_infomsg") + count, MSGTYPE.INFO); //$NON-NLS-1$
}
}