ParceableBoundingBox.java

/*
 * #%L
 * Wheelmap - App
 * %%
 * Copyright (C) 2011 - 2012 Michal Harakal - Michael Kroez - Sozialhelden e.V.
 * %%
 * Wheelmap App based on the Wheelmap Service by Sozialhelden e.V.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *         http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS-IS" BASIS
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */
package org.wheelmap.android.utils;


import org.mapsforge.android.maps.GeoPoint;
import org.wheelmap.android.net.request.BoundingBox;
import org.wheelmap.android.net.request.BoundingBox.Wgs84GeoCoordinates;

import android.os.Parcel;
import android.os.Parcelable;

import java.io.Serializable;

public class ParceableBoundingBox implements Parcelable, Serializable {

    private static final long serialVersionUID = 1566826330658318160L;

    protected final int mLatNorthE6;

    protected final int mLatSouthE6;

    protected final int mLonEastE6;

    protected final int mLonWestE6;

    public ParceableBoundingBox(final int northE6, final int eastE6, final int southE6,
            final int westE6) {
        this.mLatNorthE6 = northE6;
        this.mLonEastE6 = eastE6;
        this.mLatSouthE6 = southE6;
        this.mLonWestE6 = westE6;
    }

    public ParceableBoundingBox(final BoundingBox bb) {
        this.mLatNorthE6 = (int) (bb.getEastNorth().latitude * 1E6);
        this.mLonEastE6 = (int) (bb.getEastNorth().longitude * 1E6);
        this.mLatSouthE6 = (int) (bb.getWestSouth().latitude * 1E6);
        this.mLonWestE6 = (int) (bb.getWestSouth().latitude * 1E6);
    }


    /**
     * @return GeoPoint center of this BoundingBox
     */
    public GeoPoint getCenter() {
        return new GeoPoint((this.mLatNorthE6 + this.mLatSouthE6) / 2,
                (this.mLonEastE6 + this.mLonWestE6) / 2);
    }


    public int getLatNorthE6() {
        return this.mLatNorthE6;
    }

    public int getLatSouthE6() {
        return this.mLatSouthE6;
    }

    public int getLonEastE6() {
        return this.mLonEastE6;
    }

    public int getLonWestE6() {
        return this.mLonWestE6;
    }

    public double getLatNorth() {
        return (this.mLatNorthE6 / 1E6);
    }

    public double getLatSouth() {
        return (this.mLatSouthE6 / 1E6);
    }

    public double getLonEast() {
        return (this.mLonEastE6 / 1E6);
    }

    public double getLonWest() {
        return (this.mLonWestE6 / 1E6);
    }


    public int getLatitudeSpanE6() {
        return Math.abs(this.mLatNorthE6 - this.mLatSouthE6);
    }

    public int getLongitudeSpanE6() {
        return Math.abs(this.mLonEastE6 - this.mLonWestE6);
    }

    @Override
    public String toString() {
        return new StringBuffer().append("N:").append(this.mLatNorthE6).append("; E:")
                .append(this.mLonEastE6).append("; S:").append(this.mLatSouthE6).append("; W:")
                .append(this.mLonWestE6).toString();
    }

    // ===========================================================
    // Parcelable
    // ===========================================================

    public static final Parcelable.Creator<ParceableBoundingBox> CREATOR
            = new Parcelable.Creator<ParceableBoundingBox>() {
        @Override
        public ParceableBoundingBox createFromParcel(final Parcel in) {
            return readFromParcel(in);
        }

        @Override
        public ParceableBoundingBox[] newArray(final int size) {
            return new ParceableBoundingBox[size];
        }
    };

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

    @Override
    public void writeToParcel(final Parcel out, final int arg1) {
        out.writeInt(this.mLatNorthE6);
        out.writeInt(this.mLonEastE6);
        out.writeInt(this.mLatSouthE6);
        out.writeInt(this.mLonWestE6);
    }

    private static ParceableBoundingBox readFromParcel(final Parcel in) {
        final int latNorthE6 = in.readInt();
        final int lonEastE6 = in.readInt();
        final int latSouthE6 = in.readInt();
        final int lonWestE6 = in.readInt();
        return new ParceableBoundingBox(latNorthE6, lonEastE6, latSouthE6, lonWestE6);
    }

    public BoundingBox toBoundingBox() {
        return new BoundingBox(
                new Wgs84GeoCoordinates(mLonWestE6 / 1E6, mLatSouthE6 / 1E6),
                new Wgs84GeoCoordinates(mLonEastE6 / 1E6, mLatNorthE6 / 1E6));
    }
}