/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library 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
* Lesser General Public License for more details.
*/
package org.geotools.gui.swing.contexttree.popup;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JMenuItem;
import javax.swing.tree.TreePath;
import org.geotools.gui.swing.contexttree.ContextTreeNode;
import org.geotools.gui.swing.map.map2d.Map2D;
import org.geotools.gui.swing.map.map2d.stream.NavigableMap2D;
import org.geotools.map.MapLayer;
/**
* Default popup control for zoom on MapLayer, use for JContextTreePopup
*
* @author Johann Sorel
*
* @source $URL$
*/
public class LayerZoomItem extends JMenuItem implements TreePopupItem {
private MapLayer layer;
private NavigableMap2D map;
/** Creates a new instance
* @param map
*/
public LayerZoomItem(Map2D map) {
this.setText(BUNDLE.getString("zoom_to_layer"));
init();
setMap(map);
}
public void setMap(Map2D map) {
if(map instanceof NavigableMap2D){
this.map = (NavigableMap2D) map;
}
}
public NavigableMap2D getMap() {
return map;
}
private void init() {
addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (map != null && layer != null) {
try {
map.getRenderingStrategy().setMapArea(layer.getBounds());
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
});
}
public boolean isValid(TreePath[] selection) {
if (selection.length == 1) {
ContextTreeNode node = (ContextTreeNode) selection[0].getLastPathComponent();
return ( node.getUserObject() instanceof MapLayer ) ;
}
return false;
}
public Component getComponent(TreePath[] selection) {
ContextTreeNode node = (ContextTreeNode) selection[0].getLastPathComponent();
layer = (MapLayer) node.getUserObject() ;
this.setEnabled((map != null));
return this;
}
}