WebSVN - Projects - Rev 2294 - /MKLiveView/v1.0/Source/GMap.NET.Core/GMap.NET.MapProviders/Google/GoogleMapProvider.cs

namespace GMap.NET.MapProviders
{
using System;
using GMap.NET.Projections;
using System.Security.Cryptography;
using System.Diagnostics;
using System.Net;
using System.IO;
using System.Text.RegularExpressions;
using System.Threading;
using GMap.NET.Internals;
using System.Collections.Generic;
using System.Globalization;
using System.Xml;
using System.Text;
#if PocketPC
using OpenNETCF.Security.Cryptography;
#endif

public abstract class GoogleMapProviderBase : GMapProvider, RoutingProvider, GeocodingProvider, DirectionsProvider
{
public GoogleMapProviderBase()
{
MaxZoom = null;
RefererUrl = string.Format("http://maps.{0}/", Server);
Copyright = string.Format("©{0} Google - Map data ©{0} Tele Atlas, Imagery ©{0} TerraMetrics", DateTime.Today.Year);
}

public readonly string ServerAPIs /* ;}~~ */ = Stuff.GString(/*{^_^}*/"9gERyvblybF8iMuCt/LD6w=="/*d{'_'}b*/);
public readonly string Server /* ;}~~~~ */ = Stuff.GString(/*{^_^}*/"gosr2U13BoS+bXaIxt6XWg=="/*d{'_'}b*/);
public readonly string ServerChina /* ;}~ */ = Stuff.GString(/*{^_^}*/"gosr2U13BoTEJoJJuO25gQ=="/*d{'_'}b*/);
public readonly string ServerKorea /* ;}~~ */ = Stuff.GString(/*{^_^}*/"8ZVBOEsBinzi+zmP7y7pPA=="/*d{'_'}b*/);
public readonly string ServerKoreaKr /* ;}~ */ = Stuff.GString(/*{^_^}*/"gosr2U13BoQyz1gkC4QLfg=="/*d{'_'}b*/);

public string SecureWord = "Galileo";

/// <summary>
/// Your application's API key, obtained from the Google Developers Console.
/// This key identifies your application for purposes of quota management.
/// Must provide either API key or Maps for Work credentials.
/// </summary>
public string ApiKey = string.Empty;

#region GMapProvider Members
public override Guid Id
{
get
{
throw new NotImplementedException();
}
}

public override string Name
{
get
{
throw new NotImplementedException();
}
}

public override PureProjection Projection
{
get
{
return MercatorProjection.Instance;
}
}

GMapProvider [] overlays;
public override GMapProvider [] Overlays
{
get
{
if (overlays == null)
{
overlays = new GMapProvider [] { this };
}
return overlays;
}
}

public override PureImage GetTileImage(GPoint pos, int zoom)
{
throw new NotImplementedException();
}
#endregion

public bool TryCorrectVersion = true;
static bool init = false;

public override void OnInitialized()
{
if (!init && TryCorrectVersion)
{
string url = string.Format("https://maps.{0}/maps/api/js?client=google-maps-lite&libraries=search&language=en&region=", ServerAPIs);
try
{
string html = GMaps.Instance.UseUrlCache ? Cache.Instance.GetContent(url, CacheType.UrlCache, TimeSpan.FromHours(8)) : string.Empty;

if (string.IsNullOrEmpty(html))
{
html = GetContentUsingHttp(url);
if (!string.IsNullOrEmpty(html))
{
if (GMaps.Instance.UseUrlCache)
{
Cache.Instance.SaveContent(url, CacheType.UrlCache, html);
}
}
}

if (!string.IsNullOrEmpty(html))
{
#region -- match versions --
Regex reg = new Regex(string.Format(@"https?://mts?\d.{0}/maps/vt\?lyrs=m@(\d*)", Server), RegexOptions.IgnoreCase);
Match mat = reg.Match(html);
if (mat.Success)
{
GroupCollection gc = mat.Groups;
int count = gc.Count;
if (count > 0)
{
string ver = string.Format("m@{0}", gc [1].Value);
string old = GMapProviders.GoogleMap.Version;

GMapProviders.GoogleMap.Version = ver;
GMapProviders.GoogleChinaMap.Version = ver;

string verh = string.Format("h@{0}", gc [1].Value);
string oldh = GMapProviders.GoogleHybridMap.Version;

GMapProviders.GoogleHybridMap.Version = verh;
GMapProviders.GoogleChinaHybridMap.Version = verh;
#if DEBUG
Debug.WriteLine("GMapProviders.GoogleMap.Version: " + ver + ", " + (ver == old ? "OK" : "old: " + old + ", consider updating source"));
Debug.WriteLine("GMapProviders.GoogleHybridMap.Version: " + verh + ", " + (verh == oldh ? "OK" : "old: " + oldh + ", consider updating source"));

if (Debugger.IsAttached && ver != old)
{
Thread.Sleep(1111);
}
#endif
}
}

reg = new Regex(string.Format(@"https?://khms?\d.{0}/kh\?v=(\d*)", Server), RegexOptions.IgnoreCase);
mat = reg.Match(html);
if (mat.Success)
{
GroupCollection gc = mat.Groups;
int count = gc.Count;
if (count > 0)
{
string ver = gc [1].Value;
string old = GMapProviders.GoogleSatelliteMap.Version;

GMapProviders.GoogleSatelliteMap.Version = ver;
GMapProviders.GoogleKoreaSatelliteMap.Version = ver;
GMapProviders.GoogleChinaSatelliteMap.Version = "s@" + ver;
#if DEBUG
Debug.WriteLine("GMapProviders.GoogleSatelliteMap.Version: " + ver + ", " + (ver == old ? "OK" : "old: " + old + ", consider updating source"));
if (Debugger.IsAttached && ver != old)
{
Thread.Sleep(1111);
}
#endif
}
}

reg = new Regex(string.Format(@"https?://mts?\d.{0}/maps/vt\?lyrs=t@(\d*),r@(\d*)", Server), RegexOptions.IgnoreCase);
mat = reg.Match(html);
if (mat.Success)
{
GroupCollection gc = mat.Groups;
int count = gc.Count;
if (count > 1)
{
string ver = string.Format("t@{0},r@{1}", gc [1].Value, gc [2].Value);
string old = GMapProviders.GoogleTerrainMap.Version;

GMapProviders.GoogleTerrainMap.Version = ver;
GMapProviders.GoogleChinaTerrainMap.Version = ver;
#if DEBUG
Debug.WriteLine("GMapProviders.GoogleTerrainMap.Version: " + ver + ", " + (ver == old ? "OK" : "old: " + old + ", consider updating source"));
if (Debugger.IsAttached && ver != old)
{
Thread.Sleep(1111);
}
#endif
}
}
#endregion
}

init = true; // try it only once
}
catch (Exception ex)
{
Debug.WriteLine("TryCorrectGoogleVersions failed: " + ex.ToString());
}
}
}

internal void GetSecureWords(GPoint pos, out string sec1, out string sec2)
{
sec1 = string.Empty; // after &x=...
sec2 = string.Empty; // after &zoom=...
int seclen = (int)((pos.X * 3) + pos.Y) % 8;
sec2 = SecureWord.Substring(0, seclen);
if (pos.Y >= 10000 && pos.Y < 100000)
{
sec1 = Sec1;
}
}

static readonly string Sec1 = "&s=";

#region RoutingProvider Members

public MapRoute GetRoute(PointLatLng start, PointLatLng end, bool avoidHighways, bool walkingMode, int Zoom)
{
string tooltip;
int numLevels;
int zoomFactor;
MapRoute ret = null;
List<PointLatLng> points = GetRoutePoints(MakeRouteUrl(start, end, LanguageStr, avoidHighways, walkingMode), Zoom, out tooltip, out numLevels, out zoomFactor);
if (points != null)
{
ret = new MapRoute(points, tooltip);
}
return ret;
}

public MapRoute GetRoute(string start, string end, bool avoidHighways, bool walkingMode, int Zoom)
{
string tooltip;
int numLevels;
int zoomFactor;
MapRoute ret = null;
List<PointLatLng> points = GetRoutePoints(MakeRouteUrl(start, end, LanguageStr, avoidHighways, walkingMode), Zoom, out tooltip, out numLevels, out zoomFactor);
if (points != null)
{
ret = new MapRoute(points, tooltip);
}
return ret;
}

#region -- internals --

string MakeRouteUrl(PointLatLng start, PointLatLng end, string language, bool avoidHighways, bool walkingMode)
{
string opt = walkingMode ? WalkingStr : (avoidHighways ? RouteWithoutHighwaysStr : RouteStr);
return string.Format(CultureInfo.InvariantCulture, RouteUrlFormatPointLatLng, language, opt, start.Lat, start.Lng, end.Lat, end.Lng, Server);
}

string MakeRouteUrl(string start, string end, string language, bool avoidHighways, bool walkingMode)
{
string opt = walkingMode ? WalkingStr : (avoidHighways ? RouteWithoutHighwaysStr : RouteStr);
return string.Format(RouteUrlFormatStr, language, opt, start.Replace(' ', '+'), end.Replace(' ', '+'), Server);
}

List<PointLatLng> GetRoutePoints(string url, int zoom, out string tooltipHtml, out int numLevel, out int zoomFactor)
{
List<PointLatLng> points = null;
tooltipHtml = string.Empty;
numLevel = -1;
zoomFactor = -1;
try
{
string route = GMaps.Instance.UseRouteCache ? Cache.Instance.GetContent(url, CacheType.RouteCache) : string.Empty;

if (string.IsNullOrEmpty(route))
{
route = GetContentUsingHttp(url);

if (!string.IsNullOrEmpty(route))
{
if (GMaps.Instance.UseRouteCache)
{
Cache.Instance.SaveContent(url, CacheType.RouteCache, route);
}
}
}

// parse values
if (!string.IsNullOrEmpty(route))
{
//{
//tooltipHtml:" (300\x26#160;km / 2 valandos 59 min.)",
//polylines:
//[{
// id:"route0",
// points:"cy~rIcvp`ClJ~v@jHpu@N|BB~A?tA_@`J@nAJrB|AhEf@h@~@^pANh@Mr@a@`@_@x@cBPk@ZiBHeDQ{C]wAc@mAqCeEoA_C{@_Cy@iDoEaW}AsJcJ}t@iWowB{C_Vyw@gvGyTyjBu@gHwDoZ{W_zBsX}~BiA_MmAyOcAwOs@yNy@eTk@mVUmTE}PJ_W`@cVd@cQ`@}KjA_V`AeOn@oItAkOdAaKfBaOhDiVbD}RpBuKtEkTtP}q@fr@ypCfCmK|CmNvEqVvCuQ`BgLnAmJ`CgTpA_N~@sLlBwYh@yLp@cSj@e]zFkzKHaVViSf@wZjFwqBt@{Wr@qS`AaUjAgStBkYrEwe@xIuw@`Gmj@rFok@~BkYtCy_@|KccBvBgZjC}[tD__@pDaYjB_MpBuLhGi[fC}KfFcSnEkObFgOrFkOzEoLt[ys@tJeUlIsSbKqXtFiPfKi]rG_W|CiNhDkPfDuQlDoShEuXrEy[nOgiAxF{`@|DoVzFk[fDwPlXupA~CoPfDuQxGcd@l@yEdH{r@xDam@`AiWz@mYtAq~@p@uqAfAqx@|@kZxA}^lBq\\|Be\\lAaO~Dm`@|Gsj@tS_~AhCyUrCeZrByWv@uLlUiyDpA}NdHkn@pGmb@LkAtAoIjDqR`I{`@`BcH|I_b@zJcd@lKig@\\_CbBaIlJ}g@lIoj@pAuJtFoh@~Eqs@hDmv@h@qOfF{jBn@gSxCio@dAuQn@gIVoBjAiOlCqWbCiT`PekAzKiu@~EgYfIya@fA{ExGwWnDkMdHiU|G}R`HgQhRsa@hW}g@jVsg@|a@cbAbJkUxKoYxLa_@`IiZzHu[`DoOXsBhBuJbCwNdBaL`EkYvAwM`CeVtEwj@nDqj@BkAnB{YpGgeAn@eJ`CmYvEid@tBkQpGkd@rE}UxB}JdJo_@nDcNfSan@nS}j@lCeIvDsMbC{J|CyNbAwFfCgPz@uGvBiSdD}`@rFon@nKaqAxDmc@xBuT|Fqc@nC_PrEcUtC_MpFcT`GqQxJmXfXwq@jQgh@hBeGhG_U|BaK|G}[nRikAzIam@tDsYfE}^v@_MbAwKn@oIr@yLrBub@jAoa@b@sRdDmjBx@aZdA}XnAqVpAgTlAqPn@oGvFye@dCeRzGwb@xT_}A`BcPrAoOvCad@jAmXv@eV`BieA~@a[fBg_@`CiZ~A_OhHqk@hHcn@tEwe@rDub@nBoW~@sN|BeZnAgMvDm\\hFs^hSigArFaY`Gc\\`C}OhD}YfByQdAaNbAkOtOu~Cn@wKz@uLfCeY|CkW~B}OhCmO|AcI~A_IvDoPpEyPdImWrDuKnL_YjI{Ptl@qfAle@u|@xI}PbImQvFwMbGgOxFkOpdAosCdD_KxGsU|E}RxFcXhCwNjDwTvBiPfBqOrAyMfBcTxAaVhAwVrCy_Al@iPt@_OtA}Q`AuJ`AgIzAkK`EoUtBsJhCaKxCaKdDaKhQeg@jGiRfGaSrFyR`HsWvL}f@xp@grC`Sq|@pEsVdAoGjF{XlkAgwHxHgj@|Jex@fg@qlEjQs{AdHwh@zDkVhEkVzI_e@v}AgzHpK_l@tE}YtEy[rC}TpFme@jg@cpEbF{d@~BoXfBqUbAyOx@yN|Ao]bAo[tIazC`@iLb@aJ~AkWbBgRdBgPjA{IdCePlAmHfBmJdCiL~CuM|DoNxhDezKdDkLvBoInFqVbCuMxBqNnAeJ~CwXdBoSb^crElFsl@`Dy[zDu^xBiRzc@aaE|Fsd@vCkShDmTpG}^lD}QzDoR|zAcdHvIob@dKoj@jDmSlKiq@xVacBhEqXnBqL|Ga^zJke@`y@ktD~Mop@tP}_AdOg`AtCiQxCyOlDkPfDoN`GiTfGkRjEwLvEsL|HkQtEkJdE{HrwAkaCrT{a@rpDiuHtE_KvLuV|{AwaDzAqCb@mAf{Ac`D~FqL~y@_fBlNmZbGaNtF}Mpn@s~AlYss@dFgK|DoGhBoCrDuE~AcBtGaGnByAnDwBnCwAfDwAnFaBjGkA~[{E`iEkn@pQaDvIwBnIiCl\\qLn}J{pDhMcGrFcDhGeEvoDehC|AsArCwChBaC`C_EzC_HbBcFd@uB`@qAn@gDdB}Kz@}Hn@iPjByx@jDcvAj@}RDsEn@yTv@a]VcPtEamFBcHT_LNkEdAiShDsi@`GudAbFgx@`@iKdP}yFhBgs@p@yRjCo_AJwCXeEb@uEz@_H|@yEnBqHrCiIpAmE`o@qhBxC_IjIuVdIcXh{AgmG`i@_{BfCuLrhAssGfFeXxbBklInCsN|_AoiGpGs_@pl@w}Czy@_kEvG{]h}@ieFbQehAdHye@lPagA|Eu\\tAmI|CwWjn@mwGj@eH|]azFl@kPjAqd@jJe|DlD}vAxAeh@@eBvVk}JzIkqDfE_aBfA{YbBk[zp@e}LhAaObCeUlAuIzAeJrb@q`CjCcOnAaIpBwOtBkTjDsg@~AiPvBwOlAcH|AkIlCkLlYudApDoN`BgHhBaJvAeIvAqJbAuHrBqQbAsLx@oL`MwrCXkFr@uJh@{FhBsOvXwoB|EqVdBmHxC}KtCcJtDgKjDoIxE}JdHcMdCuDdIoKlmB}|BjJuMfFgIlE{HlEyIdEeJ~FaOvCgInCuI`EmN`J}]rEsP`EuMzCoIxGwPpi@cnAhGgPzCiJvFmRrEwQbDyOtCoPbDwTxDq\\rAsK`BgLhB{KxBoLfCgLjDqKdBqEfEkJtSy^`EcJnDuJjAwDrCeK\\}AjCaNr@qEjAaJtNaqAdCqQ`BsItS}bAbQs{@|Kor@xBmKz}@}uDze@{zAjk@}fBjTsq@r@uCd@aDFyCIwCWcCY}Aq_@w|A{AwF_DyHgHwOgu@m_BSb@nFhL",
// levels:"B?@?????@?@???A???@?@????@??@????????@????@???A????@????@??@???@??@???A???@??@???A??@???@????A??@???@??@????@??@???@????@???@??A@?@???@????A????@??@?@???@???????@??@?@????@????@?A??@???@????@??@?A??????@???????@??A???@??@???@??@????@??@?@?????@?@?A?@????@???@??@??@????@?@??@?@??@??????@???@?@????@???B???@??@??????@??@???A?????@????@???A??@??????@??@??A?@???@???@??A????@???@???@????A????@@??A???@???@??@??A????@??????@??@???@???B????@?@????????@????@????A?????@????@??A???@???@???B???@?????@???@????@????@???A???????@??A@??@?@??@@?????A?@@????????@??@?A????@?????@???@???@???@???@?@?A???@??@?@??@???@?????@???A??@???????@????@???@????@????@@???A????@?@??@?B",
// numLevels:4,
// zoomFactor:16
//}]
//}

#region -- title --
int tooltipEnd = 0;
{
int x = route.IndexOf("tooltipHtml:") + 13;
if (x >= 13)
{
tooltipEnd = route.IndexOf("\"", x + 1);
if (tooltipEnd > 0)
{
int l = tooltipEnd - x;
if (l > 0)
{
tooltipHtml = route.Substring(x, l).Replace(@"\x26#160;", " ");
}
}
}
}
#endregion

#region -- points --
int pointsEnd = 0;
{
int x = route.IndexOf("points:", tooltipEnd >= 0 ? tooltipEnd : 0) + 8;
if (x >= 8)
{
pointsEnd = route.IndexOf("\"", x + 1);
if (pointsEnd > 0)
{
int l = pointsEnd - x;
if (l > 0)
{
/*
while(l % 5 != 0)
{
l--;
}
*/

points = new List<PointLatLng>();
DecodePointsInto(points, route.Substring(x, l));
}
}
}
}
#endregion

#region -- levels --
string levels = string.Empty;
int levelsEnd = 0;
{
int x = route.IndexOf("levels:", pointsEnd >= 0 ? pointsEnd : 0) + 8;
if (x >= 8)
{
levelsEnd = route.IndexOf("\"", x + 1);
if (levelsEnd > 0)
{
int l = levelsEnd - x;
if (l > 0)
{
levels = route.Substring(x, l);
}
}
}
}
#endregion

#region -- numLevel --
int numLevelsEnd = 0;
{
int x = route.IndexOf("numLevels:", levelsEnd >= 0 ? levelsEnd : 0) + 10;
if (x >= 10)
{
numLevelsEnd = route.IndexOf(",", x);
if (numLevelsEnd > 0)
{
int l = numLevelsEnd - x;
if (l > 0)
{
numLevel = int.Parse(route.Substring(x, l));
}
}
}
}
#endregion

#region -- zoomFactor --
{
int x = route.IndexOf("zoomFactor:", numLevelsEnd >= 0 ? numLevelsEnd : 0) + 11;
if (x >= 11)
{
int end = route.IndexOf("}", x);
if (end > 0)
{
int l = end - x;
if (l > 0)
{
zoomFactor = int.Parse(route.Substring(x, l));
}
}
}
}
#endregion

#region -- trim point overload --
if (points != null && numLevel > 0 && !string.IsNullOrEmpty(levels))
{
if (points.Count - levels.Length > 0)
{
points.RemoveRange(levels.Length, points.Count - levels.Length);
}

//http://facstaff.unca.edu/mcmcclur/GoogleMaps/EncodePolyline/description.html
//
string allZlevels = "TSRPONMLKJIHGFEDCBA@?";
if (numLevel > allZlevels.Length)
{
numLevel = allZlevels.Length;
}

// used letters in levels string
string pLevels = allZlevels.Substring(allZlevels.Length - numLevel);

// remove useless points at zoom
{
List<PointLatLng> removedPoints = new List<PointLatLng>();

for (int i = 0; i < levels.Length; i++)
{
int zi = pLevels.IndexOf(levels [i]);
if (zi > 0)
{
if (zi * numLevel > zoom)
{
removedPoints.Add(points [i]);
}
}
}

foreach (var v in removedPoints)
{
points.Remove(v);
}
removedPoints.Clear();
removedPoints = null;
}
}
#endregion
}
}
catch (Exception ex)
{
points = null;
Debug.WriteLine("GetRoutePoints: " + ex);
}
return points;
}

static readonly string RouteUrlFormatPointLatLng = "http://maps.{6}/maps?f=q&output=dragdir&doflg=p&hl={0}{1}&q=&saddr=@{2},{3}&daddr=@{4},{5}";
static readonly string RouteUrlFormatStr = "http://maps.{4}/maps?f=q&output=dragdir&doflg=p&hl={0}{1}&q=&saddr=@{2}&daddr=@{3}";

static readonly string WalkingStr = "&mra=ls&dirflg=w";
static readonly string RouteWithoutHighwaysStr = "&mra=ls&dirflg=dh";
static readonly string RouteStr = "&mra=ls&dirflg=d";

#endregion

#endregion

#region GeocodingProvider Members

public GeoCoderStatusCode GetPoints(string keywords, out List<PointLatLng> pointList)
{
return GetLatLngFromGeocoderUrl(MakeGeocoderUrl(keywords, LanguageStr), out pointList);
}

public PointLatLng? GetPoint(string keywords, out GeoCoderStatusCode status)
{
List<PointLatLng> pointList;
status = GetPoints(keywords, out pointList);
return pointList != null && pointList.Count > 0 ? pointList [0] : (PointLatLng?)null;
}

/// <summary>
/// NotImplemented
/// </summary>
/// <param name="placemark"></param>
/// <param name="pointList"></param>
/// <returns></returns>
public GeoCoderStatusCode GetPoints(Placemark placemark, out List<PointLatLng> pointList)
{
throw new NotImplementedException("use GetPoints(string keywords...");
}

/// <summary>
/// NotImplemented
/// </summary>
/// <param name="placemark"></param>
/// <param name="status"></param>
/// <returns></returns>
public PointLatLng? GetPoint(Placemark placemark, out GeoCoderStatusCode status)
{
throw new NotImplementedException("use GetPoint(string keywords...");
}

public GeoCoderStatusCode GetPlacemarks(PointLatLng location, out List<Placemark> placemarkList)
{
return GetPlacemarkFromReverseGeocoderUrl(MakeReverseGeocoderUrl(location, LanguageStr), out placemarkList);
}

public Placemark? GetPlacemark(PointLatLng location, out GeoCoderStatusCode status)
{
List<Placemark> pointList;
status = GetPlacemarks(location, out pointList);
return pointList != null && pointList.Count > 0 ? pointList [0] : (Placemark?)null;
}

#region -- internals --

// The Coogle Geocoding API: http://tinyurl.com/cdlj889

string MakeGeocoderUrl(string keywords, string language)
{
return string.Format(CultureInfo.InvariantCulture, GeocoderUrlFormat, ServerAPIs, Uri.EscapeDataString(keywords).Replace(' ', '+'), language);
}

string MakeReverseGeocoderUrl(PointLatLng pt, string language)
{
return string.Format(CultureInfo.InvariantCulture, ReverseGeocoderUrlFormat, ServerAPIs, pt.Lat, pt.Lng, language);
}

GeoCoderStatusCode GetLatLngFromGeocoderUrl(string url, out List<PointLatLng> pointList)
{
var status = GeoCoderStatusCode.Unknow;
pointList = null;

try
{
string geo = GMaps.Instance.UseGeocoderCache ? Cache.Instance.GetContent(url, CacheType.GeocoderCache) : string.Empty;

bool cache = false;

if (string.IsNullOrEmpty(geo))
{
string urls = url;

// Must provide either API key or Maps for Work credentials.
if (!string.IsNullOrEmpty(ClientId))
{
urls = GetSignedUri(url);
}
else if (!string.IsNullOrEmpty(ApiKey))
{
urls += "&key=" + ApiKey;
}

geo = GetContentUsingHttp(urls);

if (!string.IsNullOrEmpty(geo))
{
cache = true;
}
}

if (!string.IsNullOrEmpty(geo))
{
if (geo.StartsWith("<?xml"))
{
#region -- xml response --
//<?xml version="1.0" encoding="UTF-8"?>
//<GeocodeResponse>
// <status>OK</status>
// <result>
// <type>locality</type>
// <type>political</type>
// <formatted_address>Vilnius, Lithuania</formatted_address>
// <address_component>
// <long_name>Vilnius</long_name>
// <short_name>Vilnius</short_name>
// <type>locality</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.6871555</lat>
// <lng>25.2796514</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.5677980</lat>
// <lng>25.0243760</lng>
// </southwest>
// <northeast>
// <lat>54.8325440</lat>
// <lng>25.4814883</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.5677980</lat>
// <lng>25.0243760</lng>
// </southwest>
// <northeast>
// <lat>54.8325440</lat>
// <lng>25.4814883</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
// <result>
// <type>airport</type>
// <type>transit_station</type>
// <type>establishment</type>
// <formatted_address>Vilnius International Airport (VNO), 10A, Vilnius, Lithuania</formatted_address>
// <address_component>
// <long_name>Vilnius International Airport</long_name>
// <short_name>Vilnius International Airport</short_name>
// <type>establishment</type>
// </address_component>
// <address_component>
// <long_name>10A</long_name>
// <short_name>10A</short_name>
// <type>street_number</type>
// </address_component>
// <address_component>
// <long_name>Vilnius</long_name>
// <short_name>Vilnius</short_name>
// <type>locality</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.6369440</lat>
// <lng>25.2877780</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.6158331</lat>
// <lng>25.2723832</lng>
// </southwest>
// <northeast>
// <lat>54.6538331</lat>
// <lng>25.3034219</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.6158331</lat>
// <lng>25.2723832</lng>
// </southwest>
// <northeast>
// <lat>54.6538331</lat>
// <lng>25.3034219</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
//</GeocodeResponse>

#endregion

XmlDocument doc = new XmlDocument();
doc.LoadXml(geo);

XmlNode nn = doc.SelectSingleNode("//status");
if (nn != null)
{
if (nn.InnerText != "OK")
{
Debug.WriteLine("GetLatLngFromGeocoderUrl: " + nn.InnerText);
}
else
{
status = GeoCoderStatusCode.G_GEO_SUCCESS;

if (cache && GMaps.Instance.UseGeocoderCache)
{
Cache.Instance.SaveContent(url, CacheType.GeocoderCache, geo);
}

pointList = new List<PointLatLng>();

XmlNodeList l = doc.SelectNodes("//result");
if (l != null)
{
foreach (XmlNode n in l)
{
nn = n.SelectSingleNode("geometry/location/lat");
if (nn != null)
{
double lat = double.Parse(nn.InnerText, CultureInfo.InvariantCulture);

nn = n.SelectSingleNode("geometry/location/lng");
if (nn != null)
{
double lng = double.Parse(nn.InnerText, CultureInfo.InvariantCulture);
pointList.Add(new PointLatLng(lat, lng));
}
}
}
}
}
}
}
}
}
catch (Exception ex)
{
status = GeoCoderStatusCode.ExceptionInCode;
Debug.WriteLine("GetLatLngFromGeocoderUrl: " + ex);
}

return status;
}

GeoCoderStatusCode GetPlacemarkFromReverseGeocoderUrl(string url, out List<Placemark> placemarkList)
{
GeoCoderStatusCode status = GeoCoderStatusCode.Unknow;
placemarkList = null;

try
{
string reverse = GMaps.Instance.UsePlacemarkCache ? Cache.Instance.GetContent(url, CacheType.PlacemarkCache) : string.Empty;

bool cache = false;

if (string.IsNullOrEmpty(reverse))
{
string urls = url;

// Must provide either API key or Maps for Work credentials.
if (!string.IsNullOrEmpty(ClientId))
{
urls = GetSignedUri(url);
}
else if (!string.IsNullOrEmpty(ApiKey))
{
urls += "&key=" + ApiKey;
}

reverse = GetContentUsingHttp(urls);

if (!string.IsNullOrEmpty(reverse))
{
cache = true;
}
}

if (!string.IsNullOrEmpty(reverse))
{
if (reverse.StartsWith("<?xml"))
{
#region -- xml response --
//<?xml version="1.0" encoding="UTF-8"?>
//<GeocodeResponse>
// <status>OK</status>
// <result>
// <type>street_address</type>
// <formatted_address>Tuskul??n?? gatv?? 2, Vilnius 09213, Lithuania</formatted_address>
// <address_component>
// <long_name>2</long_name>
// <short_name>2</short_name>
// <type>street_number</type>
// </address_component>
// <address_component>
// <long_name>Tuskul??n?? gatv??</long_name>
// <short_name>Tuskul??n?? g.</short_name>
// <type>route</type>
// </address_component>
// <address_component>
// <long_name>Vilnius</long_name>
// <short_name>Vilnius</short_name>
// <type>locality</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>09213</long_name>
// <short_name>09213</short_name>
// <type>postal_code</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.6963339</lat>
// <lng>25.2968939</lng>
// </location>
// <location_type>ROOFTOP</location_type>
// <viewport>
// <southwest>
// <lat>54.6949849</lat>
// <lng>25.2955449</lng>
// </southwest>
// <northeast>
// <lat>54.6976829</lat>
// <lng>25.2982429</lng>
// </northeast>
// </viewport>
// </geometry>
// </result>
// <result>
// <type>postal_code</type>
// <formatted_address>Vilnius 09213, Lithuania</formatted_address>
// <address_component>
// <long_name>09213</long_name>
// <short_name>09213</short_name>
// <type>postal_code</type>
// </address_component>
// <address_component>
// <long_name>Vilnius</long_name>
// <short_name>Vilnius</short_name>
// <type>locality</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.6963032</lat>
// <lng>25.2967390</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.6950889</lat>
// <lng>25.2958851</lng>
// </southwest>
// <northeast>
// <lat>54.6977869</lat>
// <lng>25.2985830</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.6956179</lat>
// <lng>25.2958871</lng>
// </southwest>
// <northeast>
// <lat>54.6972579</lat>
// <lng>25.2985810</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
// <result>
// <type>neighborhood</type>
// <type>political</type>
// <formatted_address>??irm??nai, Vilnius, Lithuania</formatted_address>
// <address_component>
// <long_name>??irm??nai</long_name>
// <short_name>??irm??nai</short_name>
// <type>neighborhood</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius</long_name>
// <short_name>Vilnius</short_name>
// <type>locality</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.7117424</lat>
// <lng>25.2974345</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.6888939</lat>
// <lng>25.2838700</lng>
// </southwest>
// <northeast>
// <lat>54.7304441</lat>
// <lng>25.3133630</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.6888939</lat>
// <lng>25.2838700</lng>
// </southwest>
// <northeast>
// <lat>54.7304441</lat>
// <lng>25.3133630</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
// <result>
// <type>administrative_area_level_3</type>
// <type>political</type>
// <formatted_address>??irm??n?? seni??nija, Lithuania</formatted_address>
// <address_component>
// <long_name>??irm??n?? seni??nija</long_name>
// <short_name>??irm??n?? sen.</short_name>
// <type>administrative_area_level_3</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.7117424</lat>
// <lng>25.2974345</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.6892135</lat>
// <lng>25.2837150</lng>
// </southwest>
// <northeast>
// <lat>54.7305878</lat>
// <lng>25.3135630</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.6892135</lat>
// <lng>25.2837150</lng>
// </southwest>
// <northeast>
// <lat>54.7305878</lat>
// <lng>25.3135630</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
// <result>
// <type>locality</type>
// <type>political</type>
// <formatted_address>Vilnius, Lithuania</formatted_address>
// <address_component>
// <long_name>Vilnius</long_name>
// <short_name>Vilnius</short_name>
// <type>locality</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.6871555</lat>
// <lng>25.2796514</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.5677980</lat>
// <lng>25.0243760</lng>
// </southwest>
// <northeast>
// <lat>54.8325440</lat>
// <lng>25.4814883</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.5677980</lat>
// <lng>25.0243760</lng>
// </southwest>
// <northeast>
// <lat>54.8325440</lat>
// <lng>25.4814883</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
// <result>
// <type>administrative_area_level_2</type>
// <type>political</type>
// <formatted_address>Vilniaus miesto savivaldyb??, Lithuania</formatted_address>
// <address_component>
// <long_name>Vilniaus miesto savivaldyb??</long_name>
// <short_name>Vilniaus m. sav.</short_name>
// <type>administrative_area_level_2</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.6759715</lat>
// <lng>25.2867413</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.5677980</lat>
// <lng>25.0243760</lng>
// </southwest>
// <northeast>
// <lat>54.8325440</lat>
// <lng>25.4814883</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.5677980</lat>
// <lng>25.0243760</lng>
// </southwest>
// <northeast>
// <lat>54.8325440</lat>
// <lng>25.4814883</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
// <result>
// <type>administrative_area_level_1</type>
// <type>political</type>
// <formatted_address>Vilnius County, Lithuania</formatted_address>
// <address_component>
// <long_name>Vilnius County</long_name>
// <short_name>Vilnius County</short_name>
// <type>administrative_area_level_1</type>
// <type>political</type>
// </address_component>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>54.8086502</lat>
// <lng>25.2182138</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>54.1276599</lat>
// <lng>24.3863751</lng>
// </southwest>
// <northeast>
// <lat>55.5174369</lat>
// <lng>26.7602130</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>54.1276599</lat>
// <lng>24.3863751</lng>
// </southwest>
// <northeast>
// <lat>55.5174369</lat>
// <lng>26.7602130</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
// <result>
// <type>country</type>
// <type>political</type>
// <formatted_address>Lithuania</formatted_address>
// <address_component>
// <long_name>Lithuania</long_name>
// <short_name>LT</short_name>
// <type>country</type>
// <type>political</type>
// </address_component>
// <geometry>
// <location>
// <lat>55.1694380</lat>
// <lng>23.8812750</lng>
// </location>
// <location_type>APPROXIMATE</location_type>
// <viewport>
// <southwest>
// <lat>53.8968787</lat>
// <lng>20.9543679</lng>
// </southwest>
// <northeast>
// <lat>56.4503209</lat>
// <lng>26.8355913</lng>
// </northeast>
// </viewport>
// <bounds>
// <southwest>
// <lat>53.8968787</lat>
// <lng>20.9543679</lng>
// </southwest>
// <northeast>
// <lat>56.4503209</lat>
// <lng>26.8355913</lng>
// </northeast>
// </bounds>
// </geometry>
// </result>
//</GeocodeResponse>

#endregion

XmlDocument doc = new XmlDocument();
doc.LoadXml(reverse);

XmlNode nn = doc.SelectSingleNode("//status");
if (nn != null)
{
if (nn.InnerText != "OK")
{
Debug.WriteLine("GetPlacemarkFromReverseGeocoderUrl: " + nn.InnerText);
}
else
{
status = GeoCoderStatusCode.G_GEO_SUCCESS;

if (cache && GMaps.Instance.UsePlacemarkCache)
{
Cache.Instance.SaveContent(url, CacheType.PlacemarkCache, reverse);
}

placemarkList = new List<Placemark>();

#region -- placemarks --
XmlNodeList l = doc.SelectNodes("//result");
if (l != null)
{
foreach (XmlNode n in l)
{
Debug.WriteLine("---------------------");

nn = n.SelectSingleNode("formatted_address");
if (nn != null)
{
var ret = new Placemark(nn.InnerText);

Debug.WriteLine("formatted_address: [" + nn.InnerText + "]");

nn = n.SelectSingleNode("type");
if (nn != null)
{
Debug.WriteLine("type: " + nn.InnerText);
}

// TODO: fill Placemark details

XmlNodeList acl = n.SelectNodes("address_component");
foreach (XmlNode ac in acl)
{
nn = ac.SelectSingleNode("type");
if (nn != null)
{
var type = nn.InnerText;
Debug.Write(" - [" + type + "], ");

nn = ac.SelectSingleNode("long_name");
if (nn != null)
{
Debug.WriteLine("long_name: [" + nn.InnerText + "]");

switch (type)
{
case "street_address":
{
ret.StreetNumber = nn.InnerText;
}
break;

case "route":
{
ret.ThoroughfareName = nn.InnerText;
}
break;

case "postal_code":
{
ret.PostalCodeNumber = nn.InnerText;
}
break;

case "country":
{
ret.CountryName = nn.InnerText;
}
break;

case "locality":
{
ret.LocalityName = nn.InnerText;
}
break;

case "administrative_area_level_2":
{
ret.DistrictName = nn.InnerText;
}
break;

case "administrative_area_level_1":
{
ret.AdministrativeAreaName = nn.InnerText;
}
break;

case "administrative_area_level_3":
{
ret.SubAdministrativeAreaName = nn.InnerText;
}
break;

case "neighborhood":
{
ret.Neighborhood = nn.InnerText;
}
break;
}
}
}
}

placemarkList.Add(ret);
}
}
}
#endregion
}
}
#endregion
}
}
}
catch (Exception ex)
{
status = GeoCoderStatusCode.ExceptionInCode;
placemarkList = null;
Debug.WriteLine("GetPlacemarkReverseGeocoderUrl: " + ex.ToString());
}

return status;
}

static readonly string ReverseGeocoderUrlFormat = "http://maps.{0}/maps/api/geocode/xml?latlng={1},{2}&language={3}&sensor=false";
static readonly string GeocoderUrlFormat = "http://maps.{0}/maps/api/geocode/xml?address={1}&language={2}&sensor=false";

#endregion

#region DirectionsProvider Members

public DirectionsStatusCode GetDirections(out GDirections direction, PointLatLng start, PointLatLng end, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
return GetDirectionsUrl(MakeDirectionsUrl(start, end, LanguageStr, avoidHighways, avoidTolls, walkingMode, sensor, metric), out direction);
}

public DirectionsStatusCode GetDirections(out GDirections direction, string start, string end, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
return GetDirectionsUrl(MakeDirectionsUrl(start, end, LanguageStr, avoidHighways, avoidTolls, walkingMode, sensor, metric), out direction);
}

/// <summary>
/// NotImplemented
/// </summary>
/// <param name="status"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="avoidHighways"></param>
/// <param name="avoidTolls"></param>
/// <param name="walkingMode"></param>
/// <param name="sensor"></param>
/// <param name="metric"></param>
/// <returns></returns>
public IEnumerable<GDirections> GetDirections(out DirectionsStatusCode status, string start, string end, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
// TODO: add alternative directions

throw new NotImplementedException();
}

/// <summary>
/// NotImplemented
/// </summary>
/// <param name="status"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="avoidHighways"></param>
/// <param name="avoidTolls"></param>
/// <param name="walkingMode"></param>
/// <param name="sensor"></param>
/// <param name="metric"></param>
/// <returns></returns>
public IEnumerable<GDirections> GetDirections(out DirectionsStatusCode status, PointLatLng start, PointLatLng end, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
// TODO: add alternative directions

throw new NotImplementedException();
}

public DirectionsStatusCode GetDirections(out GDirections direction, PointLatLng start, IEnumerable<PointLatLng> wayPoints, PointLatLng end, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
return GetDirectionsUrl(MakeDirectionsUrl(start, wayPoints, end, LanguageStr, avoidHighways, avoidTolls, walkingMode, sensor, metric), out direction);
}

public DirectionsStatusCode GetDirections(out GDirections direction, string start, IEnumerable<string> wayPoints, string end, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
return GetDirectionsUrl(MakeDirectionsUrl(start, wayPoints, end, LanguageStr, avoidHighways, avoidTolls, walkingMode, sensor, metric), out direction);
}

#region -- internals --

// The Coogle Directions API: http://tinyurl.com/6vv4cac

string MakeDirectionsUrl(PointLatLng start, PointLatLng end, string language, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
string av = (avoidHighways ? "&avoid=highways" : string.Empty) + (avoidTolls ? "&avoid=tolls" : string.Empty); // 6
string mt = "&units=" + (metric ? "metric" : "imperial"); // 7
string wk = "&mode=" + (walkingMode ? "walking" : "driving"); // 8

return string.Format(CultureInfo.InvariantCulture, DirectionUrlFormatPoint, start.Lat, start.Lng, end.Lat, end.Lng, sensor.ToString().ToLower(), language, av, mt, wk, ServerAPIs);
}

string MakeDirectionsUrl(string start, string end, string language, bool avoidHighways, bool walkingMode, bool avoidTolls, bool sensor, bool metric)
{
string av = (avoidHighways ? "&avoid=highways" : string.Empty) + (avoidTolls ? "&avoid=tolls" : string.Empty); // 4
string mt = "&units=" + (metric ? "metric" : "imperial"); // 5
string wk = "&mode=" + (walkingMode ? "walking" : "driving"); // 6

return string.Format(DirectionUrlFormatStr, start.Replace(' ', '+'), end.Replace(' ', '+'), sensor.ToString().ToLower(), language, av, mt, wk, ServerAPIs);
}

string MakeDirectionsUrl(PointLatLng start, IEnumerable<PointLatLng> wayPoints, PointLatLng end, string language, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
string av = (avoidHighways ? "&avoid=highways" : string.Empty) + (avoidTolls ? "&avoid=tolls" : string.Empty); // 6
string mt = "&units=" + (metric ? "metric" : "imperial"); // 7
string wk = "&mode=" + (walkingMode ? "walking" : "driving"); // 8

string wpLatLng = string.Empty;
int i = 0;
foreach (var wp in wayPoints)
{
wpLatLng += string.Format(CultureInfo.InvariantCulture, i++ == 0 ? "{0},{1}" : "|{0},{1}", wp.Lat, wp.Lng);
}

return string.Format(CultureInfo.InvariantCulture, DirectionUrlFormatWaypoint, start.Lat, start.Lng, wpLatLng, sensor.ToString().ToLower(), language, av, mt, wk, ServerAPIs, end.Lat, end.Lng);
}

string MakeDirectionsUrl(string start, IEnumerable<string> wayPoints, string end, string language, bool avoidHighways, bool avoidTolls, bool walkingMode, bool sensor, bool metric)
{
string av = (avoidHighways ? "&avoid=highways" : string.Empty) + (avoidTolls ? "&avoid=tolls" : string.Empty); // 6
string mt = "&units=" + (metric ? "metric" : "imperial"); // 7
string wk = "&mode=" + (walkingMode ? "walking" : "driving"); // 8

string wpLatLng = string.Empty;
int i = 0;
foreach (var wp in wayPoints)
{
wpLatLng += string.Format(CultureInfo.InvariantCulture, i++ == 0 ? "{0}" : "|{0}", wp.Replace(' ', '+'));
}

return string.Format(CultureInfo.InvariantCulture, DirectionUrlFormatWaypointStr, start.Replace(' ', '+'), wpLatLng, sensor.ToString().ToLower(), language, av, mt, wk, ServerAPIs, end.Replace(' ', '+'));
}

DirectionsStatusCode GetDirectionsUrl(string url, out GDirections direction)
{
DirectionsStatusCode ret = DirectionsStatusCode.UNKNOWN_ERROR;
direction = null;

try
{
string kml = GMaps.Instance.UseDirectionsCache ? Cache.Instance.GetContent(url, CacheType.DirectionsCache) : string.Empty;

bool cache = false;

if (string.IsNullOrEmpty(kml))
{
string urls = url;

// Must provide either API key or Maps for Work credentials.
if (!string.IsNullOrEmpty(ClientId))
{
urls = GetSignedUri(url);
}
else if (!string.IsNullOrEmpty(ApiKey))
{
urls += "&key=" + ApiKey;
}

kml = GetContentUsingHttp(urls);

if (!string.IsNullOrEmpty(kml))
{
cache = true;
}
}

if (!string.IsNullOrEmpty(kml))
{
#region -- kml response --
//<?xml version="1.0" encoding="UTF-8"?>
//<DirectionsResponse>
// <status>OK</status>
// <route>
// <summary>A1/E85</summary>
// <leg>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6893800</lat>
// <lng>25.2800500</lng>
// </start_location>
// <end_location>
// <lat>54.6907800</lat>
// <lng>25.2798000</lng>
// </end_location>
// <polyline>
// <points>soxlIiohyCYLkCJ}@Vs@?</points>
// </polyline>
// <duration>
// <value>32</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Head north on Vilniaus gatvė toward Tilto gatvė</html_instructions>
// <distance>
// <value>157</value>
// <text>0.2 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6907800</lat>
// <lng>25.2798000</lng>
// </start_location>
// <end_location>
// <lat>54.6942500</lat>
// <lng>25.2621300</lng>
// </end_location>
// <polyline>
// <points>kxxlIwmhyCmApUF`@GvAYpD{@dGcCjIoIvOuAhDwAtEa@vBUnDAhB?~AThDRxAh@hBtAdC</points>
// </polyline>
// <duration>
// <value>133</value>
// <text>2 mins</text>
// </duration>
// <html_instructions>Turn left onto A. Goštauto gatvė</html_instructions>
// <distance>
// <value>1326</value>
// <text>1.3 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6942500</lat>
// <lng>25.2621300</lng>
// </start_location>
// <end_location>
// <lat>54.6681200</lat>
// <lng>25.2377500</lng>
// </end_location>
// <polyline>
// <points>anylIi_eyC`AwD~@oBLKr@K`U|FdF|@`J^~E[j@Lh@\hB~Bn@tBZhBLrC?zIJ~DzA~OVrELlG^lDdAtDh@hAfApA`EzCvAp@jUpIpAl@bBpAdBpBxA|BdLpV`BxClAbBhBlBbChBpBhAdAXjBHlE_@t@?|@Lt@X</points>
// </polyline>
// <duration>
// <value>277</value>
// <text>5 mins</text>
// </duration>
// <html_instructions>Turn left to merge onto Geležinio Vilko gatvė</html_instructions>
// <distance>
// <value>3806</value>
// <text>3.8 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6681200</lat>
// <lng>25.2377500</lng>
// </start_location>
// <end_location>
// <lat>54.6584100</lat>
// <lng>25.1411300</lng>
// </end_location>
// <polyline>
// <points>wjtlI}f`yC~FhBlFr@jD|A~EbC~VjNxBbBdA`BnvA|zCba@l`Bt@tDTbBJpBBfBMvDaAzF}bBjiF{HnXiHxZ</points>
// </polyline>
// <duration>
// <value>539</value>
// <text>9 mins</text>
// </duration>
// <html_instructions>Continue onto Savanorių prospektas</html_instructions>
// <distance>
// <value>8465</value>
// <text>8.5 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6584100</lat>
// <lng>25.1411300</lng>
// </start_location>
// <end_location>
// <lat>54.9358200</lat>
// <lng>23.9260000</lng>
// </end_location>
// <polyline>
// <points>anrlIakmxCiq@|qCuBbLcK~n@wUrkAcPnw@gCnPoQt}AoB`MuAdHmAdFoCtJqClImBxE{DrIkQ|ZcEvIkDzIcDhKyBxJ{EdXuCtS_G`g@mF|\eF`WyDhOiE~NiErMaGpOoj@ppAoE|K_EzKeDtKkEnOsLnd@mDzLgI~U{FrNsEvJoEtI_FpI{J`O_EjFooBf_C{GdJ_FjIsH`OoFhMwH`UcDtL{CzMeDlQmAzHuU~bBiArIwApNaBfWaLfiCoBpYsDf\qChR_FlVqEpQ_ZbfA}CfN{A~HwCtRiAfKmBlVwBx[gBfRcBxMaLdp@sXrzAaE~UqCzRyC`[_q@z|LgC|e@m@vNqp@b}WuLraFo@jPaS~bDmJryAeo@v|G}CnWsm@~`EoKvo@kv@lkEkqBrlKwBvLkNj|@cu@`~EgCnNuiBpcJakAx|GyB`KqdC~fKoIfYicAxtCiDrLu@hDyBjQm@xKoGdxBmQhoGuUn|Dc@nJ[`OW|VaEn|Ee@`X</points>
// </polyline>
// <duration>
// <value>3506</value>
// <text>58 mins</text>
// </duration>
// <html_instructions>Continue onto A1/E85</html_instructions>
// <distance>
// <value>85824</value>
// <text>85.8 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9358200</lat>
// <lng>23.9260000</lng>
// </start_location>
// <end_location>
// <lat>54.9376500</lat>
// <lng>23.9195600</lng>
// </end_location>
// <polyline>
// <points>{shnIo``qCQ^MnD[lBgA`DqBdEu@xB}@zJCjB</points>
// </polyline>
// <duration>
// <value>39</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Take the exit toward Senamiestis/Aleksotas</html_instructions>
// <distance>
// <value>476</value>
// <text>0.5 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9376500</lat>
// <lng>23.9195600</lng>
// </start_location>
// <end_location>
// <lat>54.9361300</lat>
// <lng>23.9189700</lng>
// </end_location>
// <polyline>
// <points>i_inIgx~pCnHtB</points>
// </polyline>
// <duration>
// <value>28</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Turn left onto Kleboniškio gatvė</html_instructions>
// <distance>
// <value>173</value>
// <text>0.2 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9361300</lat>
// <lng>23.9189700</lng>
// </start_location>
// <end_location>
// <lat>54.9018900</lat>
// <lng>23.8937000</lng>
// </end_location>
// <polyline>
// <points>yuhnIqt~pCvAb@JLrOvExSdHvDdAv`@pIpHnAdl@hLdB`@nDvAtEjDdCvCjLzOvAzBhC`GpHfRbQd^`JpMPt@ClA</points>
// </polyline>
// <duration>
// <value>412</value>
// <text>7 mins</text>
// </duration>
// <html_instructions>Continue onto Jonavos gatvė</html_instructions>
// <distance>
// <value>4302</value>
// <text>4.3 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9018900</lat>
// <lng>23.8937000</lng>
// </start_location>
// <end_location>
// <lat>54.8985600</lat>
// <lng>23.8933400</lng>
// </end_location>
// <polyline>
// <points>y_bnIsvypCMf@FnARlAf@zAl@^v@EZ_@pAe@x@k@xBPpA@pAQNSf@oB</points>
// </polyline>
// <duration>
// <value>69</value>
// <text>1 min</text>
// </duration>
// <html_instructions>At the roundabout, take the 3rd exit and stay on Jonavos gatvė</html_instructions>
// <distance>
// <value>478</value>
// <text>0.5 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.8985600</lat>
// <lng>23.8933400</lng>
// </start_location>
// <end_location>
// <lat>54.8968500</lat>
// <lng>23.8930000</lng>
// </end_location>
// <polyline>
// <points>_kanIktypCbEx@pCH</points>
// </polyline>
// <duration>
// <value>38</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Turn right onto A. Mapu gatvė<div style="font-size:0.9em">Destination will be on the right</div></html_instructions>
// <distance>
// <value>192</value>
// <text>0.2 km</text>
// </distance>
// </step>
// <duration>
// <value>5073</value>
// <text>1 hour 25 mins</text>
// </duration>
// <distance>
// <value>105199</value>
// <text>105 km</text>
// </distance>
// <start_location>
// <lat>54.6893800</lat>
// <lng>25.2800500</lng>
// </start_location>
// <end_location>
// <lat>54.8968500</lat>
// <lng>23.8930000</lng>
// </end_location>
// <start_address>Vilnius, Lithuania</start_address>
// <end_address>Kaunas, Lithuania</end_address>
// </leg>
// <copyrights>Map data ©2011 Tele Atlas</copyrights>
// <overview_polyline>
// <points>soxlIiohyCYL}Fb@mApUF`@GvAYpD{@dGcCjIoIvOwBpFy@xC]jBSxCC~E^~Er@lCtAdC`AwD~@oB`AW`U|FdF|@`J^~E[tAj@hB~BjA~ELrCJzOzA~Od@`N^lDdAtDt@xAjAnApDlCbXbKpAl@bBpAdBpBxA|BdLpV`BxCvDpEbChBpBhAdAXjBHbG_@|@LtHbClFr@jK`F~VjNxBbB`@h@rwAt|Cba@l`BjAxGNxEMvDaAzF}bBjiFcFbQ_y@|gD{CxMeBnJcK~n@wh@dkCkAlIoQt}AeEfV}EzQqClImBxE{DrIkQ|ZcEvIkDzIcDhKyBxJ{EdXuCtS_G`g@mF|\eF`WyDhOiE~NiErMaGpOoj@ppAoE|K_EzKeDtKmXzbAgI~U{FrNsEvJoLfT{J`O_EjFooBf_C{GdJkLtSwI`SyClI}CrJcDtL{CzMeDlQcXzlBiArIwApNaBfWaLfiCoBpYsDf\qChR_FlVqEpQ_ZbfAyFfXwCtRiAfKeFfs@gBfRcBxMaLdp@sXrzAaE~UqCzRyC`[_q@z|LuDtu@qp@b}WuLraFo@jPo^r}Faq@pfHaBtMsm@~`EoKvo@kv@lkEcuBjzKkNj|@cu@`~EgCnNuiBpcJakAx|GyB`KqdC~fKoIfYidAbwCoD|MeAbHcA|Im@xK}YnhKyV~gEs@~f@aEn|Ee@`XQ^MnD[lBoF`N}@zJCjBfKxCJLdj@bQv`@pIpHnAdl@hLdB`@nDvAtEjDdCvCbOvSzLhZbQd^`JpMPt@QtBFnAz@hDl@^j@?f@e@pAe@x@k@xBPfCEf@Uj@wBbEx@pCH</points>
// </overview_polyline>
// <bounds>
// <southwest>
// <lat>54.6389500</lat>
// <lng>23.8920900</lng>
// </southwest>
// <northeast>
// <lat>54.9376500</lat>
// <lng>25.2800500</lng>
// </northeast>
// </bounds>
// </route>
//</DirectionsResponse>
#endregion

XmlDocument doc = new XmlDocument();
doc.LoadXml(kml);

XmlNode nn = doc.SelectSingleNode("/DirectionsResponse/status");
if (nn != null)
{
ret = (DirectionsStatusCode)Enum.Parse(typeof(DirectionsStatusCode), nn.InnerText, false);
if (ret == DirectionsStatusCode.OK)
{
if (cache && GMaps.Instance.UseDirectionsCache)
{
Cache.Instance.SaveContent(url, CacheType.DirectionsCache, kml);
}

direction = new GDirections();

nn = doc.SelectSingleNode("/DirectionsResponse/route/summary");
if (nn != null)
{
direction.Summary = nn.InnerText;
Debug.WriteLine("summary: " + direction.Summary);
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/duration");
if (nn != null)
{
var t = nn.SelectSingleNode("text");
if (t != null)
{
direction.Duration = t.InnerText;
Debug.WriteLine("duration: " + direction.Duration);
}

t = nn.SelectSingleNode("value");
if (t != null)
{
if (!string.IsNullOrEmpty(t.InnerText))
{
direction.DurationValue = uint.Parse(t.InnerText);
Debug.WriteLine("value: " + direction.DurationValue);
}
}
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/distance");
if (nn != null)
{
var t = nn.SelectSingleNode("text");
if (t != null)
{
direction.Distance = t.InnerText;
Debug.WriteLine("distance: " + direction.Distance);
}

t = nn.SelectSingleNode("value");
if (t != null)
{
if (!string.IsNullOrEmpty(t.InnerText))
{
direction.DistanceValue = uint.Parse(t.InnerText);
Debug.WriteLine("value: " + direction.DistanceValue);
}
}
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/start_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
direction.StartLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}

pt = nn.SelectSingleNode("lng");
if (pt != null)
{
direction.StartLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/end_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
direction.EndLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}

pt = nn.SelectSingleNode("lng");
if (pt != null)
{
direction.EndLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/start_address");
if (nn != null)
{
direction.StartAddress = nn.InnerText;
Debug.WriteLine("start_address: " + direction.StartAddress);
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/end_address");
if (nn != null)
{
direction.EndAddress = nn.InnerText;
Debug.WriteLine("end_address: " + direction.EndAddress);
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/copyrights");
if (nn != null)
{
direction.Copyrights = nn.InnerText;
Debug.WriteLine("copyrights: " + direction.Copyrights);
}

nn = doc.SelectSingleNode("/DirectionsResponse/route/overview_polyline/points");
if (nn != null)
{
direction.Route = new List<PointLatLng>();
DecodePointsInto(direction.Route, nn.InnerText);
}

XmlNodeList steps = doc.SelectNodes("/DirectionsResponse/route/leg/step");
if (steps != null)
{
if (steps.Count > 0)
{
direction.Steps = new List<GDirectionStep>();
}

foreach (XmlNode s in steps)
{
GDirectionStep step = new GDirectionStep();

Debug.WriteLine("----------------------");
nn = s.SelectSingleNode("travel_mode");
if (nn != null)
{
step.TravelMode = nn.InnerText;
Debug.WriteLine("travel_mode: " + step.TravelMode);
}

nn = s.SelectSingleNode("start_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
step.StartLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}

pt = nn.SelectSingleNode("lng");
if (pt != null)
{
step.StartLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}

nn = s.SelectSingleNode("end_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
step.EndLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}

pt = nn.SelectSingleNode("lng");
if (pt != null)
{
step.EndLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}

nn = s.SelectSingleNode("duration");
if (nn != null)
{
nn = nn.SelectSingleNode("text");
if (nn != null)
{
step.Duration = nn.InnerText;
Debug.WriteLine("duration: " + step.Duration);
}
}

nn = s.SelectSingleNode("distance");
if (nn != null)
{
nn = nn.SelectSingleNode("text");
if (nn != null)
{
step.Distance = nn.InnerText;
Debug.WriteLine("distance: " + step.Distance);
}
}

nn = s.SelectSingleNode("html_instructions");
if (nn != null)
{
step.HtmlInstructions = nn.InnerText;
Debug.WriteLine("html_instructions: " + step.HtmlInstructions);
}

nn = s.SelectSingleNode("polyline");
if (nn != null)
{
nn = nn.SelectSingleNode("points");
if (nn != null)
{
step.Points = new List<PointLatLng>();
DecodePointsInto(step.Points, nn.InnerText);
}
}

direction.Steps.Add(step);
}
}
}
}
}
}
catch (Exception ex)
{
direction = null;
ret = DirectionsStatusCode.ExceptionInCode;
Debug.WriteLine("GetDirectionsUrl: " + ex);
}
return ret;
}

static void DecodePointsInto(List<PointLatLng> path, string encodedPath)
{
// https://github.com/googlemaps/google-maps-services-java/blob/master/src/main/java/com/google/maps/internal/PolylineEncoding.java
int len = encodedPath.Length;
int index = 0;
int lat = 0;
int lng = 0;
while (index < len)
{
int result = 1;
int shift = 0;
int b;
do
{
b = encodedPath[index++] - 63 - 1;
result += b << shift;
shift += 5;
} while (b >= 0x1f && index < len);
lat += (result & 1) != 0 ? ~(result >> 1) : (result >> 1);

result = 1;
shift = 0;

if (index < len)
{
do
{
b = encodedPath[index++] - 63 - 1;
result += b << shift;
shift += 5;
} while (b >= 0x1f && index < len);
lng += (result & 1) != 0 ? ~(result >> 1) : (result >> 1);
}

path.Add(new PointLatLng(lat * 1e-5, lng * 1e-5));
}
}

static readonly string DirectionUrlFormatStr = "http://maps.{7}/maps/api/directions/xml?origin={0}&destination={1}&sensor={2}&language={3}{4}{5}{6}";
static readonly string DirectionUrlFormatPoint = "http://maps.{9}/maps/api/directions/xml?origin={0},{1}&destination={2},{3}&sensor={4}&language={5}{6}{7}{8}";
static readonly string DirectionUrlFormatWaypoint = "http://maps.{8}/maps/api/directions/xml?origin={0},{1}&waypoints={2}&destination={9},{10}&sensor={3}&language={4}{5}{6}{7}";
static readonly string DirectionUrlFormatWaypointStr = "http://maps.{7}/maps/api/directions/xml?origin={0}&waypoints={1}&destination={8}&sensor={2}&language={3}{4}{5}{6}";

#endregion

#endregion

#region -- Maps API for Work --
/// <summary>
/// https://developers.google.com/maps/documentation/business/webservices/auth#how_do_i_get_my_signing_key
/// To access the special features of the Google Maps API for Work you must provide a client ID
/// when accessing any of the API libraries or services.
/// When registering for Google Google Maps API for Work you will receive this client ID from Enterprise Support.
/// All client IDs begin with a gme- prefix. Your client ID is passed as the value of the client parameter.
/// Generally, you should store your private key someplace safe and read them into your code
/// </summary>
/// <param name="clientId"></param>
/// <param name="privateKey"></param>
public void SetEnterpriseCredentials(string clientId, string privateKey)
{
privateKey = privateKey.Replace("-", "+").Replace("_", "/");
_privateKeyBytes = Convert.FromBase64String(privateKey);
_clientId = clientId;
}
private byte[] _privateKeyBytes;

private string _clientId = string.Empty;

/// <summary>
/// Your client ID. To access the special features of the Google Maps API for Work
/// you must provide a client ID when accessing any of the API libraries or services.
/// When registering for Google Google Maps API for Work you will receive this client ID
/// from Enterprise Support. All client IDs begin with a gme- prefix.
/// </summary>
public string ClientId
{
get
{
return _clientId;
}
}

string GetSignedUri(Uri uri)
{
var builder = new UriBuilder(uri);
builder.Query = builder.Query.Substring(1) + "&client=" + _clientId;
uri = builder.Uri;
string signature = GetSignature(uri);

return uri.Scheme + "://" + uri.Host + uri.LocalPath + uri.Query + "&signature=" + signature;
}

string GetSignedUri(string url)
{
return GetSignedUri(new Uri(url));
}

string GetSignature(Uri uri)
{
byte[] encodedPathQuery = Encoding.ASCII.GetBytes(uri.LocalPath + uri.Query);
var hashAlgorithm = new HMACSHA1(_privateKeyBytes);
byte[] hashed = hashAlgorithm.ComputeHash(encodedPathQuery);
return Convert.ToBase64String(hashed).Replace("+", "-").Replace("/", "_");
}
#endregion
}

/// <summary>
/// GoogleMap provider
/// </summary>
public class GoogleMapProvider : GoogleMapProviderBase
{
public static readonly GoogleMapProvider Instance;

GoogleMapProvider()
{
}

static GoogleMapProvider()
{
Instance = new GoogleMapProvider();
}

public string Version = "m@366000000"; //"m@333000000";

#region GMapProvider Members

readonly Guid id = new Guid("D7287DA0-A7FF-405F-8166-B6BAF26D066C");
public override Guid Id
{
get
{
return id;
}
}

readonly string name = "GoogleMap";
public override string Name
{
get
{
return name;
}
}

public override PureImage GetTileImage(GPoint pos, int zoom)
{
string url = MakeTileImageUrl(pos, zoom, LanguageStr);

return GetTileImageUsingHttp(url);
}

#endregion

string MakeTileImageUrl(GPoint pos, int zoom, string language)
{
string sec1 = string.Empty; // after &x=...
string sec2 = string.Empty; // after &zoom=...
GetSecureWords(pos, out sec1, out sec2);

return string.Format(UrlFormat, UrlFormatServer, GetServerNum(pos, 4), UrlFormatRequest, Version, language, pos.X, sec1, pos.Y, zoom, sec2, Server);
}

static readonly string UrlFormatServer = "mt";
static readonly string UrlFormatRequest = "vt";
static readonly string UrlFormat = "http://{0}{1}.{10}/maps/{2}/lyrs={3}&hl={4}&x={5}{6}&y={7}&z={8}&s={9}";
}
}

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(root)/MKLiveView/v1.0/Source/GMap.NET.Core/GMap.NET.MapProviders/Google/GoogleMapProvider.cs - Rev 2294