Android Open Source - smartnavi Kml Point

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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;
//  www. j a va2  s  .  c  om
import android.content.Context;
import android.os.Parcel;
import android.os.Parcelable;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;

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 java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;

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

    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() {
        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 KmlPoint(Parcel in) {
        super(in);
    }

    public GeoPoint getPosition() {
        return mCoordinates.get(0);
    }

    public void setPosition(GeoPoint position) {
        if (mCoordinates == null) {
            mCoordinates = new ArrayList<GeoPoint>(1);
            mCoordinates.add(position);
        } else
            mCoordinates.set(0, position);
    }

    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;
    }

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

    @Override
    public BoundingBoxE6 getBoundingBox() {
        return BoundingBoxE6.fromGeoPoints(mCoordinates);
    }

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

    @Override
    public KmlPoint clone() {
        KmlPoint kmlPoint = (KmlPoint) super.clone();
        return kmlPoint;
    }

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

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

    /**
     * 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) {
        }
    }
}
Java Source Code List
