forked from upstream-mirrors/OpenTracks
Rodrigo Damazio
233 lines
7.4 KiB
Java
233 lines
7.4 KiB
Java
/*
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* Copyright 2008 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.google.android.apps.mytracks.io;
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import com.google.android.apps.mytracks.content.Track;
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import com.google.android.apps.mytracks.content.Waypoint;
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import com.google.android.apps.mytracks.io.TrackWriterFactory.TrackFileFormat;
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import com.google.android.apps.mytracks.util.StringUtils;
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import android.content.Context;
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import android.location.Location;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.util.Vector;
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/**
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* Write track as KML to a file.
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*
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* @author Leif Hendrik Wilden
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*/
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public class KmlTrackWriter implements TrackFormatWriter {
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private final Vector<Double> distances = new Vector<Double>();
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private final Vector<Double> elevations = new Vector<Double>();
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private final StringUtils stringUtils;
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private PrintWriter pw = null;
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private Track track;
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public KmlTrackWriter(Context context) {
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stringUtils = new StringUtils(context);
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}
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/**
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* Testing constructor.
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*/
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KmlTrackWriter(StringUtils stringUtils) {
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this.stringUtils = stringUtils;
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}
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@Override
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public void prepare(Track track, OutputStream out) {
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this.track = track;
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this.pw = new PrintWriter(out);
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}
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@Override
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public String getExtension() {
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return TrackFileFormat.KML.getExtension();
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}
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@Override
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public void writeHeader() {
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if (pw != null) {
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pw.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
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pw.print("<kml");
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pw.print(" xmlns=\"http://earth.google.com/kml/2.0\"");
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pw.println(" xmlns:atom=\"http://www.w3.org/2005/Atom\">");
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pw.println("<Document>");
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pw.println("<atom:author><atom:name>My Tracks running on Android"
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+ "</atom:name></atom:author>");
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pw.println("<name>" + StringUtils.stringAsCData(track.getName())
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+ "</name>");
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pw.println("<description>"
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+ StringUtils.stringAsCData(track.getDescription())
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+ "</description>");
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writeStyles();
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}
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}
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@Override
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public void writeFooter() {
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if (pw != null) {
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pw.println("</Document>");
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pw.println("</kml>");
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}
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}
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@Override
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public void writeBeginTrack(Location firstPoint) {
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if (pw != null) {
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writePlacemark("(Start)", track.getDescription(), "#sh_green-circle",
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firstPoint);
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pw.println("<Placemark>");
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pw.println("<name>" + StringUtils.stringAsCData(track.getName())
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+ "</name>");
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pw.println("<description>"
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+ StringUtils.stringAsCData(track.getDescription())
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+ "</description>");
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pw.println("<styleUrl>#track</styleUrl>");
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pw.println("<MultiGeometry>");
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}
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}
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@Override
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public void writeEndTrack(Location lastPoint) {
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if (pw != null) {
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pw.println("</MultiGeometry>");
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pw.println("</Placemark>");
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String description = stringUtils.generateTrackDescription(
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track, distances, elevations);
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writePlacemark("(End)", description, "#sh_red-circle", lastPoint);
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}
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}
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@Override
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public void writeOpenSegment() {
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if (pw != null) {
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pw.print("<LineString><coordinates>");
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}
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}
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@Override
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public void writeCloseSegment() {
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if (pw != null) {
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pw.println("</coordinates></LineString>");
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}
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}
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@Override
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public void writeLocation(Location l) {
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if (pw != null) {
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pw.print(l.getLongitude() + "," + l.getLatitude() + ","
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+ l.getAltitude() + " ");
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}
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}
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private String getPinStyle(Waypoint waypoint) {
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if (waypoint.getType() == Waypoint.TYPE_STATISTICS) {
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return "#sh_ylw-pushpin";
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}
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// Try to find the icon color.
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// The string should be of the form:
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// "http://maps.google.com/mapfiles/ms/micons/XXX.png"
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int slash = waypoint.getIcon().lastIndexOf('/');
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int png = waypoint.getIcon().lastIndexOf('.');
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if ((slash != -1) && (slash < png)) {
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String color = waypoint.getIcon().substring(slash + 1, png);
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return "#sh_" + color + "-pushpin";
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}
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return "#sh_blue-pushpin";
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}
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@Override
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public void writeWaypoint(Waypoint waypoint) {
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if (pw != null) {
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writePlacemark(
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waypoint.getName(),
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waypoint.getDescription(),
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getPinStyle(waypoint),
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waypoint.getLocation());
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}
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}
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@Override
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public void close() {
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if (pw != null) {
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pw.close();
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pw = null;
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}
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}
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private void writeStyles() {
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pw.println("<Style id=\"track\"><LineStyle><color>7f0000ff</color>"
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+ "<width>4</width></LineStyle></Style>");
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pw.print("<Style id=\"sh_green-circle\"><IconStyle><scale>1.3</scale>");
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pw.print("<Icon><href>http://maps.google.com/mapfiles/kml/paddle/"
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+ "grn-circle.png</href></Icon>");
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pw.println("<hotSpot x=\"32\" y=\"1\" xunits=\"pixels\" yunits=\"pixels\"/>"
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+ "</IconStyle></Style>");
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pw.print("<Style id=\"sh_red-circle\"><IconStyle><scale>1.3</scale>");
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pw.print("<Icon><href>http://maps.google.com/mapfiles/kml/paddle/"
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+ "red-circle.png</href></Icon>");
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pw.println("<hotSpot x=\"32\" y=\"1\" xunits=\"pixels\" yunits=\"pixels\"/>"
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+ "</IconStyle></Style>");
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pw.print("<Style id=\"sh_ylw-pushpin\"><IconStyle><scale>1.3</scale>");
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pw.print("<Icon><href>http://maps.google.com/mapfiles/kml/pushpin/"
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+ "ylw-pushpin.png</href></Icon>");
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pw.println("<hotSpot x=\"20\" y=\"2\" xunits=\"pixels\" yunits=\"pixels\"/>"
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+ "</IconStyle></Style>");
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pw.print("<Style id=\"sh_blue-pushpin\"><IconStyle><scale>1.3</scale>");
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pw.print("<Icon><href>http://maps.google.com/mapfiles/kml/pushpin/"
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+ "blue-pushpin.png</href></Icon>");
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pw.println("<hotSpot x=\"20\" y=\"2\" xunits=\"pixels\" yunits=\"pixels\"/>"
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+ "</IconStyle></Style>");
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pw.print("<Style id=\"sh_green-pushpin\"><IconStyle><scale>1.3</scale>");
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pw.print("<Icon><href>http://maps.google.com/mapfiles/kml/pushpin/"
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+ "grn-pushpin.png</href></Icon>");
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pw.println("<hotSpot x=\"20\" y=\"2\" xunits=\"pixels\" yunits=\"pixels\"/>"
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+ "</IconStyle></Style>");
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pw.print("<Style id=\"sh_red-pushpin\"><IconStyle><scale>1.3</scale>");
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pw.print("<Icon><href>http://maps.google.com/mapfiles/kml/pushpin/"
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+ "red-pushpin.png</href></Icon>");
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pw.println("<hotSpot x=\"20\" y=\"2\" xunits=\"pixels\" yunits=\"pixels\"/>"
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+ "</IconStyle></Style>");
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}
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private void writePlacemark(String name, String description, String style,
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Location location) {
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if (location != null) {
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pw.println("<Placemark>");
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pw.println(" <name>" + StringUtils.stringAsCData(name) + "</name>");
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pw.println(" <description>" + StringUtils.stringAsCData(description)
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+ "</description>");
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pw.println(" <styleUrl>" + style + "</styleUrl>");
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pw.println(" <Point>");
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pw.println(" <coordinates>" + location.getLongitude() + ","
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+ location.getLatitude() + "</coordinates>");
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pw.println(" </Point>");
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pw.println("</Placemark>");
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}
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}
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}
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