Android Open Source - SmartNavi Kml Point

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License

The source code is released under:

Apache License

Java Source Code

package org.osmdroid.bonuspack.kml;
/*from  w  w  w.  ja  v  a2s  . co  m*/
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import org.osmdroid.bonuspack.kml.KmlFeature.Styler;
import org.osmdroid.bonuspack.overlays.Marker;
import org.osmdroid.bonuspack.overlays.Marker.OnMarkerDragListener;
import org.osmdroid.util.BoundingBoxE6;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.Overlay;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import android.content.Context;
import android.os.Parcel;
import android.os.Parcelable;

/**
 * KML and/or GeoJSON Point
 * @author M.Kergall
 */
public class KmlPoint extends KmlGeometry implements Parcelable, Cloneable {

  public KmlPoint(){
    super();
  }
  
  public KmlPoint(GeoPoint position){
    this();
    setPosition(position);
  }
  
  /** GeoJSON constructor */
  public KmlPoint(JsonObject json){
    this();
    JsonElement coordinates = json.get("coordinates");
    if (coordinates != null){
      setPosition(KmlGeometry.parseGeoJSONPosition(coordinates.getAsJsonArray()));
    }
  }
  
  public void setPosition(GeoPoint position){
    if (mCoordinates == null){
      mCoordinates = new ArrayList<GeoPoint>(1);
      mCoordinates.add(position);
    } else
      mCoordinates.set(0, position);
  }
  
  public GeoPoint getPosition(){
    return mCoordinates.get(0);
  }
  
  /** default listener for dragging a Marker built from a KML Point */
  public class OnKMLMarkerDragListener implements OnMarkerDragListener {
    @Override public void onMarkerDrag(Marker marker) {}
    @Override public void onMarkerDragEnd(Marker marker) {
      Object object = marker.getRelatedObject();
      if (object != null && object instanceof KmlPoint){
        KmlPoint point = (KmlPoint)object;
        point.setPosition(marker.getPosition());
      }
    }
    @Override public void onMarkerDragStart(Marker marker) {}    
  }
  
  public void applyDefaultStyling(Marker marker, Style defaultStyle, KmlPlacemark kmlPlacemark,
      KmlDocument kmlDocument, MapView map){
    Context context = map.getContext();
    Style style = kmlDocument.getStyle(kmlPlacemark.mStyle);
    if (style != null && style.mIconStyle != null){
      style.mIconStyle.styleMarker(marker, context);
    } else if (defaultStyle!=null && defaultStyle.mIconStyle!=null){
      defaultStyle.mIconStyle.styleMarker(marker, context);
    }
    //allow marker drag, acting on KML Point:
    marker.setDraggable(true);
    marker.setOnMarkerDragListener(new OnKMLMarkerDragListener());
    marker.setEnabled(kmlPlacemark.mVisibility);
  }
  
  /** Build the corresponding Marker overlay */  
  @Override public Overlay buildOverlay(MapView map, Style defaultStyle, Styler styler, KmlPlacemark kmlPlacemark, 
      KmlDocument kmlDocument){
    Marker marker = new Marker(map);
    marker.setTitle(kmlPlacemark.mName);
    marker.setSnippet(kmlPlacemark.mDescription);
    marker.setPosition(getPosition());
    //keep the link from the marker to the KML feature:
    marker.setRelatedObject(this);
    if (styler == null){
      applyDefaultStyling(marker, defaultStyle, kmlPlacemark, kmlDocument, map);
    } else
      styler.onPoint(marker, kmlPlacemark, this);
    return marker;
  }
  
  @Override public void saveAsKML(Writer writer){
    try {
      writer.write("<Point>\n");
      writeKMLCoordinates(writer, mCoordinates);
      writer.write("</Point>\n");
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  
  @Override public JsonObject asGeoJSON(){
    JsonObject json = new JsonObject();
    json.addProperty("type", "Point");
    json.add("coordinates", KmlGeometry.geoJSONPosition(mCoordinates.get(0)));
    return json;
  }

  @Override public BoundingBoxE6 getBoundingBox(){
    return BoundingBoxE6.fromGeoPoints(mCoordinates);
  }
  
  //Cloneable implementation ------------------------------------
  
  @Override public KmlPoint clone(){
    KmlPoint kmlPoint = (KmlPoint)super.clone();
    return kmlPoint;
  }
  
  //Parcelable implementation ------------
  
  @Override public int describeContents() {
    return 0;
  }

  @Override public void writeToParcel(Parcel out, int flags) {
    super.writeToParcel(out, flags);
  }
  
  public static final Parcelable.Creator<KmlPoint> CREATOR = new Parcelable.Creator<KmlPoint>() {
    @Override public KmlPoint createFromParcel(Parcel source) {
      return new KmlPoint(source);
    }
    @Override public KmlPoint[] newArray(int size) {
      return new KmlPoint[size];
    }
  };
  
  public KmlPoint(Parcel in){
    super(in);
  }
}

Java Source Code List

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