/*
* 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.widget.searchandfilter.client.widget.geometricsearch;
import org.geomajas.configuration.CircleInfo;
import org.geomajas.configuration.SymbolInfo;
import org.geomajas.geometry.Coordinate;
import org.geomajas.gwt.client.controller.editing.EditController.EditMode;
import org.geomajas.gwt.client.gfx.paintable.GfxGeometry;
import org.geomajas.gwt.client.gfx.style.ShapeStyle;
import org.geomajas.gwt.client.map.feature.TransactionGeomIndex;
import org.geomajas.gwt.client.spatial.geometry.GeometryFactory;
import org.geomajas.gwt.client.spatial.geometry.Point;
import org.geomajas.gwt.client.widget.MapWidget;
import org.geomajas.gwt.client.widget.MapWidget.RenderGroup;
import org.geomajas.gwt.client.widget.MapWidget.RenderStatus;
import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseUpEvent;
import com.google.gwt.user.client.Event;
/**
* Drawing controller for Point geometries.
*
* @author Bruce Palmkoeck
*/
public class PointDrawController extends AbstractFreeDrawingController {
protected TransactionGeomIndex index;
private String dragTargetId;
private GfxGeometry tempPoint;
private ShapeStyle drawStyle;
private SymbolInfo symbolStyle;
// -------------------------------------------------------------------------
// Constructor:
// -------------------------------------------------------------------------
public PointDrawController(MapWidget mapWidget, AbstractFreeDrawingController parent) {
super(mapWidget, parent);
factory = new GeometryFactory(mapWidget.getMapModel().getSrid(), mapWidget.getMapModel().getPrecision());
geometry = factory.createPoint(new Coordinate());
drawStyle = new ShapeStyle("#FF7F00", 0.3f, "#FF7F00", 1, 2);
symbolStyle = new SymbolInfo();
CircleInfo c = new CircleInfo();
symbolStyle.setCircle(c);
c.setR(8);
}
// -------------------------------------------------------------------------
// DrawController implementation:
// -------------------------------------------------------------------------
public void cleanup() {
removeTempPoint();
}
public boolean isBusy() {
// busy when inserting or dragging has started
return getEditMode() == EditMode.INSERT_MODE || (getEditMode() == EditMode.DRAG_MODE && dragTargetId != null);
}
// -------------------------------------------------------------------------
// MapController implementation:
// -------------------------------------------------------------------------
public void onMouseDown(MouseDownEvent event) {
Coordinate newCoords = getWorldPosition(event);
geometry = factory.createPoint(newCoords);
}
public void onMouseUp(MouseUpEvent event) {
if (event.getNativeButton() != Event.BUTTON_RIGHT) {
removeTempPoint();
createTempPoint();
}
}
// Getters and setters:
public void setEditMode(EditMode editMode) {
super.setEditMode(editMode);
if (editMode == EditMode.DRAG_MODE) {
removeTempPoint();
}
}
// Private methods:
private void createTempPoint() {
tempPoint = new GfxGeometry("PointDrawController.updatePoint");
tempPoint.setStyle(drawStyle);
tempPoint.setSymbolInfo(symbolStyle);
Coordinate coords = getTransformer().worldToPan(geometry.getCoordinate());
Point point = (Point) geometry.getGeometryFactory().createPoint(coords);
tempPoint.setGeometry(point);
mapWidget.render(tempPoint, RenderGroup.VECTOR, RenderStatus.ALL);
}
private void removeTempPoint() {
if (tempPoint != null) {
mapWidget.render(tempPoint, RenderGroup.VECTOR, RenderStatus.DELETE);
tempPoint = null;
}
}
}