/*
* 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.plugin.geocoder.client;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.grid.ListGridRecord;
import com.smartgwt.client.widgets.grid.events.RecordClickEvent;
import com.smartgwt.client.widgets.grid.events.RecordClickHandler;
import org.geomajas.global.Api;
import org.geomajas.plugin.geocoder.client.event.SelectLocationEvent;
import org.geomajas.plugin.geocoder.command.dto.GetLocationForStringAlternative;
import java.util.List;
/**
* Grid object with geocoder alternatives.
*
* @author Joachim Van der Auwera
* @since 1.0.0
*/
@Api
public class GeocoderAlternativesGrid extends ListGrid {
private static final String LOCATION_FIELD = "Location";
private static final String LOCATION_OBJECT = "Object";
/**
* Create a grid with the alternatives.
*
* @param widget geocoder widget
* @param alternatives list of alternatives
*/
@Api
public GeocoderAlternativesGrid(final GeocoderWidget widget, List<GetLocationForStringAlternative> alternatives) {
super();
this.setWidth(300);
this.setHeight(200);
this.setCanEdit(false);
this.setPadding(5);
ListGridField locationField = new ListGridField(LOCATION_FIELD);
locationField.setCanEdit(false);
locationField.setCanSort(false);
locationField.setCanGroupBy(false);
this.setFields(locationField);
this.addRecordClickHandler(new GeocoderRecordClickHandler(widget));
update(alternatives);
}
/**
* Update alternatives grid with given alternatives.
*
* @param alternatives alternatives
*/
@Api
public void update(List<GetLocationForStringAlternative> alternatives) {
this.setData(toRecords(alternatives));
this.scrollTo(0, 0);
}
private ListGridRecord[] toRecords(List<GetLocationForStringAlternative> alternatives) {
ListGridRecord[] records = new ListGridRecord[alternatives.size()];
for (int i = 0; i < records.length; i++) {
GetLocationForStringAlternative alt = alternatives.get(i);
ListGridRecord record = new ListGridRecord();
record.setAttribute(LOCATION_FIELD, alt.getCanonicalLocation());
record.setAttribute(LOCATION_OBJECT, alt);
records[i] = record;
}
return records;
}
/**
* Default click handler for the alterantives.
*
* @author Joachim Van der Auwera
*/
private static final class GeocoderRecordClickHandler implements RecordClickHandler {
private GeocoderWidget widget;
private GeocoderRecordClickHandler(GeocoderWidget widget) {
this.widget = widget;
}
public void onRecordClick(RecordClickEvent recordClickEvent) {
GetLocationForStringAlternative alternative;
alternative = (GetLocationForStringAlternative) recordClickEvent.getRecord()
.getAttributeAsObject(LOCATION_OBJECT);
widget.fireEvent(new SelectLocationEvent(widget.getMap(), alternative));
}
}
}