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;
/*from w  ww . j a v  a2 s  . c  o  m*/
import android.content.Context;
import android.os.Parcel;
import android.os.Parcelable;

import com.google.gson.JsonArray;
import com.google.gson.JsonObject;

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 java.io.IOException;
import java.io.Writer;

/**
 * KML and/or GeoJSON LineString
 *
 * @author M.Kergall
 */
public class KmlLineString extends KmlGeometry {

    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() {
        super();
    }

    public KmlLineString(JsonObject json) {
        this();
        JsonArray coordinates = json.get("coordinates").getAsJsonArray();
        mCoordinates = KmlGeometry.parseGeoJSONPositions(coordinates);
    }

    public KmlLineString(Parcel in) {
        super(in);
    }

    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();
        }
    }

    //Cloneable implementation ------------------------------------

    @Override
    public JsonObject asGeoJSON() {
        JsonObject json = new JsonObject();
        json.addProperty("type", "LineString");
        json.add("coordinates", KmlGeometry.geoJSONCoordinates(mCoordinates));
        return json;
    }

    //Parcelable implementation ------------

    @Override
    public BoundingBoxE6 getBoundingBox() {
        if (mCoordinates != null)
            return BoundingBoxE6.fromGeoPoints(mCoordinates);
        else
            return null;
    }

    @Override
    public KmlLineString clone() {
        KmlLineString kmlLineString = (KmlLineString) super.clone();
        return kmlLineString;
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel out, int flags) {
        super.writeToParcel(out, flags);
    }
}
Java Source Code List
