/**
*
* geo-platform
* Rich webgis framework
* http://geo-platform.org
* ====================================================================
*
* Copyright (C) 2008-2017 geoSDI Group (CNR IMAA - Potenza - ITALY).
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version. This program is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License
* for more details. You should have received a copy of the GNU General
* Public License along with this program. If not, see http://www.gnu.org/licenses/
*
* ====================================================================
*
* Linking this library statically or dynamically with other modules is
* making a combined work based on this library. Thus, the terms and
* conditions of the GNU General Public License cover the whole combination.
*
* As a special exception, the copyright holders of this library give you permission
* to link this library with independent modules to produce an executable, regardless
* of the license terms of these independent modules, and to copy and distribute
* the resulting executable under terms of your choice, provided that you also meet,
* for each linked independent module, the terms and conditions of the license of
* that module. An independent module is a module which is not derived from or
* based on this library. If you modify this library, you may extend this exception
* to your version of the library, but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version.
*/
package org.geosdi.geoplatform.gui.client.widget.map.responsibility;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.event.MessageBoxEvent;
import com.extjs.gxt.ui.client.mvc.Dispatcher;
import com.extjs.gxt.ui.client.widget.Dialog;
import org.geosdi.geoplatform.gui.client.MapWidgetEvents;
import org.geosdi.geoplatform.gui.client.i18n.MapModuleConstants;
import org.geosdi.geoplatform.gui.client.widget.map.control.ModifyFeatureControl;
import org.geosdi.geoplatform.gui.configuration.message.GeoPlatformMessage;
import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
import org.gwtopenmaps.openlayers.client.geometry.Geometry;
import org.gwtopenmaps.openlayers.client.geometry.Polygon;
import org.gwtopenmaps.openlayers.client.layer.Vector;
/**
*
* @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
* @email giuseppe.lascaleia@geosdi.org
*/
public class PolygonRequestHandler extends GeometryRequestHandler {
public PolygonRequestHandler(ModifyFeatureControl theControl) {
super(theControl);
}
@Override
public void geometryRequest(VectorFeature feature, Vector vector) {
if ((feature.getGeometry().getClassName().equals(
Geometry.POLYGON_CLASS_NAME))
|| (feature.getGeometry().getClassName().equals(
Geometry.MULTI_POLYGON_CLASS_NAME))) {
if (!checkModifications(feature)) {
showConfirmMessage(feature, vector);
}
} else {
forwardGeometryRequest(feature, vector);
}
}
@Override
public boolean checkModifications(VectorFeature feature) {
Polygon oldPolygon = Polygon.narrowToPolygon(
control.getSelectedFeature().getGeometry().getJSObject());
Polygon pol = Polygon.narrowToPolygon(
feature.getGeometry().getJSObject());
return pol.equals(oldPolygon);
}
@Override
public void showConfirmMessage(final VectorFeature feature,
final Vector vector) {
final VectorFeature selectedFeature = getSelectedFeaure();
GeoPlatformMessage.confirmMessage(
MapModuleConstants.INSTANCE.PolygonRequestHandler_confirmFeatureChangesTitleText(),
MapModuleConstants.INSTANCE.PolygonRequestHandler_confirmFeatureChangesBodyText(),
new Listener<MessageBoxEvent>() {
@Override
public void handleEvent(MessageBoxEvent be) {
if (Dialog.YES.equals(be.getButtonClicked().getItemId())) {
Dispatcher.forwardEvent(
MapWidgetEvents.UPDATE_POLYGON_GEOMETRY,
feature);
} else {
vector.removeFeature(feature);
vector.addFeature(selectedFeature);
}
}
});
}
}