package org.freeplane.plugin.openmaps.mapelements;
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.HashSet;
import java.util.Set;
import org.freeplane.plugin.openmaps.LocationChoosenListener;
import org.openstreetmap.gui.jmapviewer.Coordinate;
import org.openstreetmap.gui.jmapviewer.DefaultMapController;
import org.openstreetmap.gui.jmapviewer.JMapViewer;
import org.openstreetmap.gui.jmapviewer.MapMarkerDot;
import org.openstreetmap.gui.jmapviewer.OsmMercator;
/**
* @author Blair Archibald
*/
public class OpenMapsController extends DefaultMapController implements MouseListener {
private Set<LocationChoosenListener> Listeners;
private int locationCount;
public OpenMapsController(JMapViewer map) {
super(map);
configureButtons();
Listeners = new HashSet<LocationChoosenListener>();
locationCount = 0;
}
private void configureButtons() {
this.setDoubleClickZoomEnabled(false);
this.setMovementMouseButton(1);
}
@Override
public void mouseClicked(MouseEvent e) {
if (e.getClickCount() == 2 && e.getButton() == MouseEvent.BUTTON1) {
final Coordinate locationChoosen = getSelectedLocation(e.getPoint());
if (locationCount < 1) {
addMarkerToLocation(locationChoosen);
locationCount++;
}
sendLocation(locationChoosen, getCurrentZoomLevel());
}
}
public void addLocationChoosenListener(LocationChoosenListener listener) {
Listeners.add(listener);
}
public void removeLocationChoosenListener(LocationChoosenListener listener) {
Listeners.remove(listener);
}
private void sendLocation(Coordinate locationChoosen, int zoom) {
for (LocationChoosenListener l : Listeners) {
l.locationChoosenAction(locationChoosen, zoom);
}
}
public Coordinate getSelectedLocation(Point clickedLocation) {
return map.getPosition(clickedLocation);
}
public int getCurrentZoomLevel() {
return map.getZoom();
}
private void addMarkerToLocation(final Coordinate locationChoosen) {
map.addMapMarker(new MapMarkerDot(locationChoosen.getLat(), locationChoosen.getLon()));
}
public void zoomToLocation(Coordinate location, int zoom) {
if(locationCount == 0) {
addMarkerToLocation(location);
locationCount++;
}
// this method is not available in JMapViewer >= 1.03!
// map.setDisplayPositionByLatLon(new Point(map.getWidth() / 2, map.getHeight() / 2), location.getLat(), location.getLon(), zoom);
int x = (int)OsmMercator.LonToX(location.getLon(), zoom);
int y = (int)OsmMercator.LatToY(location.getLat(), zoom);
map.setDisplayPosition(new Point(map.getWidth() / 2, map.getHeight() / 2), x, y, zoom);
}
}