/* Markers.java
{{IS_NOTE
Purpose:
Description:
History:
Jun 21, 2012 5:18:11 PM , Created by jumperchen
}}IS_NOTE
Copyright (C) 2012 Potix Corporation. All Rights Reserved.
{{IS_RIGHT
}}IS_RIGHT
*/
package org.zkoss.openlayers.layer;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.zkoss.openlayers.Openlayers;
import org.zkoss.openlayers.marker.Marker;
import org.zkoss.openlayers.util.Function;
/**
* @author jumperchen
*
*/
public class Markers extends Layer {
private List<Marker> _markers;
public Markers(String name) {
this(name, null);
}
public Markers(String name, Map options) {
super(name, options);
init();
}
private void init() {
_markers = new LinkedList<Marker>();
}
public void addMarker(Marker marker) {
if (marker == null)
throw new NullPointerException("Marker cannot be null!");
_markers.add(marker);
marker.setParent(this);
if (_map != null) {
marker.onMapAttached(_map, null);
_map.invalidate();
}
}
public void removeMarker(Marker marker) {
if (_markers.remove(marker)) {
marker.onMapDetached(_map);
marker.setParent(null);
if (_map != null)
_map.invalidate();
}
}
public void clearMarkers() {
for (Marker m : _markers)
removeMarker(m);
}
@Override
public String toJSONString() {
Function fun = getNativeObject();
if (!_markers.isEmpty()) {
for (Marker m : _markers)
fun.invoke("addMarker", m);
}
return fun.toJSONString(_map);
}
@Override
public void onMapAttached(Openlayers newMap, Openlayers oldMap) {
super.onMapAttached(newMap, oldMap);
for (Marker m : _markers)
m.onMapAttached(newMap, oldMap);
}
@Override
public void onMapDetached(Openlayers map) {
super.onMapDetached(map);
for (Marker m : _markers)
m.onMapDetached(map);
}
@Override
protected String getNativeClass() {
return "OpenLayers.Layer.Markers";
}
}