/*
* 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.MultiPoint;
import org.geomajas.gwt.client.spatial.geometry.MultiPolygon;
import org.geomajas.gwt.client.spatial.geometry.Point;
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;
/**
* Add coordinate operation.
*
* @author Pieter De Graef
*/
public class AddCoordinateOp extends GeometryEditor implements FeatureOperation {
private TransactionGeomIndex index;
private Coordinate coordinate;
public AddCoordinateOp(TransactionGeomIndex index, Coordinate coordinate) {
this.index = index;
this.coordinate = coordinate;
}
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 MultiPoint) {
execute((MultiPoint) geometry);
} else if (geometry instanceof Polygon) {
execute((Polygon) geometry);
} else if (geometry instanceof LineString) {
feature.setGeometry(execute((LineString) geometry));
} else if (geometry instanceof Point) {
execute((Point) 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 MultiPoint) {
undo((MultiPoint) geometry);
} else if (geometry instanceof Polygon) {
undo((Polygon) geometry);
} else if (geometry instanceof LineString) {
feature.setGeometry(undo((LineString) geometry));
} else if (geometry instanceof Point) {
undo((Point) geometry);
}
}
// -------------------------------------------------------------------------
// Private execution functions:
// -------------------------------------------------------------------------
private void execute(MultiPolygon multiPolygon) {
if (index.getGeometryIndex() >= multiPolygon.getNumGeometries()) {
Polygon[] polygons = new Polygon[multiPolygon.getNumGeometries() + 1];
for (int i = 0; i < multiPolygon.getNumGeometries(); i++) {
polygons[i] = (Polygon) multiPolygon.getGeometryN(i);
}
LinearRing exteriorRing = multiPolygon.getGeometryFactory().createLinearRing(
new Coordinate[] { coordinate });
polygons[multiPolygon.getNumGeometries()] = multiPolygon.getGeometryFactory().createPolygon(exteriorRing,
null);
setPolygons(multiPolygon, polygons);
} else {
execute((Polygon) multiPolygon.getGeometryN(index.getGeometryIndex()));
}
}
private void execute(MultiLineString multiLineString) {
if (index.getGeometryIndex() >= multiLineString.getNumGeometries()) {
LineString[] lineStrings = new LineString[multiLineString.getNumGeometries() + 1];
for (int i = 0; i < multiLineString.getNumGeometries(); i++) {
lineStrings[i] = (LineString) multiLineString.getGeometryN(i);
}
lineStrings[multiLineString.getNumGeometries()] = multiLineString.getGeometryFactory().createLineString(
new Coordinate[] { coordinate });
setLineStrings(multiLineString, lineStrings);
} else {
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();
if (ring == null) {
ring = polygon.getGeometryFactory().createLinearRing(new Coordinate[] { coordinate });
setExteriorRing(polygon, ring);
} else {
setExteriorRing(polygon, (LinearRing) execute(ring));
}
} else if (index.getInteriorRingIndex() >= 0) {
if (index.getGeometryIndex() >= polygon.getNumInteriorRing()) {
LinearRing[] interiorRings = new LinearRing[polygon.getNumInteriorRing() + 1];
for (int i = 0; i < polygon.getNumInteriorRing(); i++) {
interiorRings[i] = polygon.getInteriorRingN(i);
}
interiorRings[polygon.getNumInteriorRing()] = polygon.getGeometryFactory().createLinearRing(
new Coordinate[] { coordinate });
setInteriorRings(polygon, interiorRings);
} else {
ring = polygon.getInteriorRingN(index.getInteriorRingIndex());
LineString lineString = execute(ring);
setInteriorRingN(polygon, (LinearRing) lineString, index.getInteriorRingIndex());
}
}
}
private LineString execute(LineString lineString) {
InsertCoordinateOperation op = new InsertCoordinateOperation(lineString.getNumPoints(), coordinate);
return (LineString) op.execute(lineString);
}
private void execute(Point point) {
if (point.isEmpty()) {
setCoordinate(point, coordinate);
}
}
private void execute(MultiPoint multiPoint) {
addPoint(multiPoint, multiPoint.getGeometryFactory().createPoint(coordinate));
}
// -------------------------------------------------------------------------
// 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) {
RemoveCoordinateOperation op = new RemoveCoordinateOperation(lineString.getNumPoints());
return (LineString) op.execute(lineString);
}
private void undo(Point point) {
setCoordinate(point, null);
}
private void undo(MultiPoint multiPoint) {
Point[] points = new Point[multiPoint.getNumGeometries() - 1];
for (int n = 0; n < multiPoint.getNumGeometries() - 1; n++) {
points[n] = (Point) multiPoint.getGeometryN(n);
}
setPoints(multiPoint, points);
}
}