Android Open Source - SmartNavi Kml Line String

From Project

Back to project page SmartNavi.

License

The source code is released under:

Apache License

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Java Source Code

package org.osmdroid.bonuspack.kml;
/*  ww  w  .  ja va 2s .c o m*/
import java.io.IOException;
import java.io.Writer;
import org.osmdroid.bonuspack.kml.KmlFeature.Styler;
import org.osmdroid.bonuspack.overlays.Polyline;
import org.osmdroid.util.BoundingBoxE6;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.Overlay;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import android.content.Context;
import android.os.Parcel;
import android.os.Parcelable;

/**
 * KML and/or GeoJSON LineString
 * @author M.Kergall
 */
public class KmlLineString extends KmlGeometry {
  
  public KmlLineString(){
    super();
  }
  
  public KmlLineString(JsonObject json){
    this();
    JsonArray coordinates = json.get("coordinates").getAsJsonArray();
    mCoordinates = KmlGeometry.parseGeoJSONPositions(coordinates);
  }
  
  public void applyDefaultStyling(Polyline lineStringOverlay, Style defaultStyle, KmlPlacemark kmlPlacemark,
      KmlDocument kmlDocument){
    Style style = kmlDocument.getStyle(kmlPlacemark.mStyle);
    if (style != null){
      lineStringOverlay.setPaint(style.getOutlinePaint());
    } else if (defaultStyle!=null && defaultStyle.mLineStyle!=null){ 
      lineStringOverlay.setPaint(defaultStyle.getOutlinePaint());
    }
    lineStringOverlay.setEnabled(kmlPlacemark.mVisibility);
  }
  
  /** Build the corresponding Polyline overlay */  
  @Override public Overlay buildOverlay(MapView map, Style defaultStyle, Styler styler, KmlPlacemark kmlPlacemark, 
      KmlDocument kmlDocument){
    Context context = map.getContext();
    Polyline lineStringOverlay = new Polyline(context);
    lineStringOverlay.setPoints(mCoordinates);
    if (styler != null)
      styler.onLineString(lineStringOverlay, kmlPlacemark, this);
    else {
      applyDefaultStyling(lineStringOverlay, defaultStyle, kmlPlacemark, kmlDocument);
    }
    return lineStringOverlay;
  }
  
  @Override public void saveAsKML(Writer writer){
    try {
      writer.write("<LineString>\n");
      writeKMLCoordinates(writer, mCoordinates);
      writer.write("</LineString>\n");
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  
  @Override public JsonObject asGeoJSON(){
    JsonObject json = new JsonObject();
    json.addProperty("type", "LineString");
    json.add("coordinates", KmlGeometry.geoJSONCoordinates(mCoordinates));
    return json;
  }
  
  @Override public BoundingBoxE6 getBoundingBox(){
    if (mCoordinates!=null)
      return BoundingBoxE6.fromGeoPoints(mCoordinates);
    else 
      return null;
  }
  
  //Cloneable implementation ------------------------------------
  
  @Override public KmlLineString clone(){
    KmlLineString kmlLineString = (KmlLineString)super.clone();
    return kmlLineString;
  }
  
  //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<KmlLineString> CREATOR = new Parcelable.Creator<KmlLineString>() {
    @Override public KmlLineString createFromParcel(Parcel source) {
      return new KmlLineString(source);
    }
    @Override public KmlLineString[] newArray(int size) {
      return new KmlLineString[size];
    }
  };
  
  public KmlLineString(Parcel in){
    super(in);
  }
}

Java Source Code List