/*
* This is part of Geomajas, a GIS framework, http://www.geomajas.org/.
*
* Copyright 2008-2011 Geosparc nv, http://www.geosparc.com/, Belgium.
*
* The program is available in open source according to the GNU Affero
* General Public License. All contributions in this program are covered
* by the Geomajas Contributors License Agreement. For full licensing
* details, see LICENSE.txt in the project root.
*/
package org.geomajas.gwt.client.map.feature.operation;
import org.geomajas.geometry.Coordinate;
import org.geomajas.gwt.client.map.feature.Feature;
import org.geomajas.gwt.client.map.feature.TransactionGeomIndex;
import org.geomajas.gwt.client.spatial.geometry.Geometry;
import org.geomajas.gwt.client.spatial.geometry.GeometryEditor;
import org.geomajas.gwt.client.spatial.geometry.LineString;
import org.geomajas.gwt.client.spatial.geometry.LinearRing;
import org.geomajas.gwt.client.spatial.geometry.MultiLineString;
import org.geomajas.gwt.client.spatial.geometry.MultiPolygon;
import org.geomajas.gwt.client.spatial.geometry.Polygon;
import org.geomajas.gwt.client.spatial.geometry.operation.InsertCoordinateOperation;
import org.geomajas.gwt.client.spatial.geometry.operation.RemoveCoordinateOperation;
/**
* Remove coordinate operation.
*
* @author Pieter De Graef
*/
public class RemoveCoordinateOp extends GeometryEditor implements FeatureOperation {
private TransactionGeomIndex index;
private Coordinate coordinate;
public RemoveCoordinateOp(TransactionGeomIndex index) {
this.index = index;
if (index.getCoordinateIndex() < 0) {
index.setCoordinateIndex(index.getEdgeIndex());
}
}
public void execute(Feature feature) {
Geometry geometry = feature.getGeometry();
if (geometry instanceof MultiPolygon) {
execute((MultiPolygon) geometry);
} else if (geometry instanceof MultiLineString) {
execute((MultiLineString) geometry);
} else if (geometry instanceof Polygon) {
execute((Polygon) geometry);
} else if (geometry instanceof LineString) {
feature.setGeometry(execute((LineString) geometry));
}
}
public void undo(Feature feature) {
Geometry geometry = feature.getGeometry();
if (geometry instanceof MultiPolygon) {
undo((MultiPolygon) geometry);
} else if (geometry instanceof MultiLineString) {
undo((MultiLineString) geometry);
} else if (geometry instanceof Polygon) {
undo((Polygon) geometry);
} else if (geometry instanceof LineString) {
feature.setGeometry(undo((LineString) geometry));
}
}
// -------------------------------------------------------------------------
// Private execution functions:
// -------------------------------------------------------------------------
private void execute(MultiPolygon multiPolygon) {
execute((Polygon) multiPolygon.getGeometryN(index.getGeometryIndex()));
}
private void execute(MultiLineString multiLineString) {
LineString lineString = execute((LineString) multiLineString.getGeometryN(index.getGeometryIndex()));
setLineStringN(multiLineString, lineString, index.getGeometryIndex());
}
private void execute(Polygon polygon) {
LinearRing ring = null;
if (index.isExteriorRing()) {
ring = polygon.getExteriorRing();
LineString lineString = execute(ring);
setExteriorRing(polygon, (LinearRing) lineString);
} else if (index.getInteriorRingIndex() >= 0) {
ring = polygon.getInteriorRingN(index.getInteriorRingIndex());
LineString lineString = execute(ring);
setInteriorRingN(polygon, (LinearRing) lineString, index.getInteriorRingIndex());
}
}
private LineString execute(LineString lineString) {
coordinate = (Coordinate) lineString.getCoordinateN(index.getCoordinateIndex()).clone();
RemoveCoordinateOperation op = new RemoveCoordinateOperation(index.getCoordinateIndex());
return (LineString) op.execute(lineString);
}
// -------------------------------------------------------------------------
// Private undo functions:
// -------------------------------------------------------------------------
private void undo(MultiPolygon multiPolygon) {
undo((Polygon) multiPolygon.getGeometryN(index.getGeometryIndex()));
}
private void undo(MultiLineString multiLineString) {
LineString lineString = undo((LineString) multiLineString.getGeometryN(index.getGeometryIndex()));
setLineStringN(multiLineString, lineString, index.getGeometryIndex());
}
private void undo(Polygon polygon) {
LinearRing ring = null;
if (index.isExteriorRing()) {
ring = polygon.getExteriorRing();
LineString lineString = undo(ring);
setExteriorRing(polygon, (LinearRing) lineString);
} else if (index.getInteriorRingIndex() >= 0) {
ring = polygon.getInteriorRingN(index.getInteriorRingIndex());
LineString lineString = undo(ring);
setInteriorRingN(polygon, (LinearRing) lineString, index.getInteriorRingIndex());
}
}
private LineString undo(LineString lineString) {
InsertCoordinateOperation op = new InsertCoordinateOperation(index.getCoordinateIndex(), coordinate);
return (LineString) op.execute(lineString);
}
}