/* **********************************************************************
*
* Use, duplication, or disclosure by the Government is subject to
* restricted rights as set forth in the DFARS.
*
* BBNT Solutions LLC
* A Part of
* Verizon
* 10 Moulton Street
* Cambridge, MA 02138
* (617) 873-3000
*
* Copyright (C) 2002 by BBNT Solutions, LLC
* All Rights Reserved.
* ********************************************************************** */
package com.bbn.openmap.examples.beanbox;
import java.awt.*;
import javax.swing.*;
import java.util.*;
import java.lang.reflect.*;
import com.bbn.openmap.Layer;
import com.bbn.openmap.event.MapMouseListener;
import com.bbn.openmap.event.ProjectionEvent;
import com.bbn.openmap.omGraphics.OMGraphic;
import com.bbn.openmap.omGraphics.OMGraphicConstants;
import com.bbn.openmap.omGraphics.OMRaster;
import com.bbn.openmap.omGraphics.OMRasterObject;
import com.bbn.openmap.proj.Projection;
import com.bbn.openmap.tools.beanbox.BeanBoxHandler;
import com.bbn.openmap.tools.beanbox.BeanBox;
/**
* An OpenMap Layer for displaying
* {@link com.bbn.openmap.examples.beanbox.SimpleBeanObject}beans.
* This class an example of an openmap layer that contains an instance
* of the {@link com.bbn.openmap.tools.beanbox.BeanBox}class. This
* layer maintains a reference to an instance of
* {@link com.bbn.openmap.examples.beanbox.SimpleBeanBox}class which
* is a sample implementation of the
* {@link com.bbn.openmap.tools.beanbox.BeanBox}class. The
* {@link com.bbn.openmap.examples.beanbox.SimpleBeanBox}class
* manages the set of
* {@link com.bbn.openmap.examples.beanbox.SimpleBeanObject}beans
* that are displayed by this layer.
*/
public class SimpleBeanLayer extends Layer implements BeanBoxHandler {
protected HashMap beans = new HashMap();
protected HashMap graphics = new HashMap();
protected Projection projection;
protected SimpleBeanBox beanBox;
private static SimpleBeanLayer thisLayer;
public SimpleBeanLayer() {
super();
setName("Simple Bean Layer");
addToBeanContext = true;
thisLayer = this;
beanBox = new SimpleBeanBox(this);
}
/** Gets a reference to this layer object. */
public static SimpleBeanLayer getLayer() {
return thisLayer;
}
/**
* @return the instance of
* {@link com.bbn.openmap.examples.beanbox.SimpleBeanBox}
* that is maintained by this layer.
*/
public BeanBox getBeanBox() {
return beanBox;
}
/** Gets the current projection */
public Projection getProjection() {
return projection;
}
/**
* @return an instance of
* {@link com.bbn.openmap.examples.beanbox.SimpleBeanBox},
* which implements the MapMouseListener interface.
*/
public MapMouseListener getMapMouseListener() {
return (MapMouseListener) beanBox;
}
/** Implement ProjectionListener method inherited from Layer. */
public void projectionChanged(ProjectionEvent event) {
projection = event.getProjection();
Collection values = graphics.values();
Iterator iter = values.iterator();
while (iter.hasNext())
((OMGraphic) iter.next()).generate(projection);
}
/** override Component method */
public void paint(Graphics g) {
Collection values = graphics.values();
Iterator iter = values.iterator();
while (iter.hasNext()) {
OMGraphic graphic = (OMGraphic) iter.next();
graphic.render(g);
}
}
/**
* Update all OMGraphic objects maintained by this layer using the
* information stored in corresponding SimpleBeanObject beans.
*/
public void updateGraphics() {
Set keys = beans.keySet();
Iterator iter = keys.iterator();
while (iter.hasNext()) {
Long id = (Long) iter.next();
SimpleBeanObject bean = (SimpleBeanObject) beans.get(id);
OMGraphic graphic = (OMGraphic) graphics.get(id);
if ((graphic instanceof CustomGraphic)) {
((CustomGraphic) graphic).updateGraphic(bean);
} else if (graphic instanceof OMRasterObject) {
((OMRasterObject) graphic).setLat(bean.getLatitude());
((OMRasterObject) graphic).setLon(bean.getLongitude());
((OMRasterObject) graphic).setRotationAngle(bean.getBearingInDeg()
* Math.PI / 180);
}
graphic.setNeedToRegenerate(true);
if (projection != null)
graphic.generate(projection);
}
repaint();
}
/**
* Adds a bean to this layer.
*/
public void addObject(SimpleBeanObject object) {
beans.put(new Long(object.getId()), object);
String customGraphicClassName = object.getCustomGraphicClassName();
OMGraphic graphic = null;
if (customGraphicClassName == null) {
ImageIcon icon = new ImageIcon(object.getGraphicImage());
int width = icon.getIconWidth();
int height = icon.getIconHeight();
graphic = new OMRaster(object.getLatitude(), object.getLongitude(), -width / 2, -height / 2, icon);
((OMRaster) graphic).setRotationAngle(object.getBearingInDeg()
* Math.PI / 180);
graphic.setRenderType(OMGraphicConstants.RENDERTYPE_OFFSET);
graphic.setAppObject(new Long(object.getId()));
} else {
try {
Class graphicClass = Class.forName(customGraphicClassName);
Class parentClass = graphicClass;
while (parentClass != null) {
if (parentClass == CustomGraphic.class) {
break;
} else
parentClass = parentClass.getSuperclass();
}
if (parentClass != null) {
Constructor constructor = graphicClass.getConstructor(new Class[] { SimpleBeanObject.class });
graphic = (CustomGraphic) constructor.newInstance(new Object[] { object });
}
} catch (Exception e) {
e.printStackTrace();
}
}
if (graphic != null) {
graphic.setNeedToRegenerate(true);
graphics.put(new Long(object.getId()), graphic);
if (projection != null)
graphic.generate(projection);
repaint();
}
}
/**
* Removes a bean from this layer.
*/
public void removeObject(Long id) {
beans.remove(id);
graphics.remove(id);
}
public void removeObject(long id) {
removeObject(new Long(id));
}
/**
* returns a bean with the specified id.
*/
public SimpleBeanObject getObject(Long id) {
return (SimpleBeanObject) beans.get(id);
}
public SimpleBeanObject getObject(long id) {
return (SimpleBeanObject) beans.get(new Long(id));
}
/**
* return all SimpleBeanObject beans maintained by this layer.
*/
public Vector getObjects() {
return new Vector(beans.values());
}
/**
* return the OMGraphic object associated with the
* SimpleBeanObject with the specified id.
*/
public OMGraphic getGraphic(Long id) {
return (OMGraphic) graphics.get(id);
}
public OMGraphic getGraphic(long id) {
return (OMGraphic) graphics.get(new Long(id));
}
/**
* Update the specified SimpleBeanObject object that may be
* maintained by this layer.
*/
public void updateObject(SimpleBeanObject object) {
// not yet added to layer. ignore
if (getObject(object.getId()) == null)
return;
removeObject(object.getId());
addObject(object);
}
}