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78 lines
3 KiB
C#
78 lines
3 KiB
C#
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/*
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* Copyright 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using Result = com.google.zxing.Result;
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namespace com.google.zxing.client.result
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{
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/// <summary> Parses a "geo:" URI result, which specifies a location on the surface of
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/// the Earth as well as an optional altitude above the surface. See
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/// <a href="http://tools.ietf.org/html/draft-mayrhofer-geo-uri-00">
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/// http://tools.ietf.org/html/draft-mayrhofer-geo-uri-00</a>.
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///
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/// </summary>
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/// <author> Sean Owen
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/// </author>
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/// <author>www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source
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/// </author>
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sealed class GeoResultParser:ResultParser
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{
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private GeoResultParser()
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{
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}
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public static GeoParsedResult parse(Result result)
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{
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System.String rawText = result.Text;
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if (rawText == null || (!rawText.StartsWith("geo:") && !rawText.StartsWith("GEO:")))
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{
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return null;
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}
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// Drop geo, query portion
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//UPGRADE_WARNING: Method 'java.lang.String.indexOf' was converted to 'System.String.IndexOf' which may throw an exception. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1101'"
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int queryStart = rawText.IndexOf('?', 4);
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System.String geoURIWithoutQuery = queryStart < 0?rawText.Substring(4):rawText.Substring(4, (queryStart) - (4));
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int latitudeEnd = geoURIWithoutQuery.IndexOf(',');
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if (latitudeEnd < 0)
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{
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return null;
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}
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//UPGRADE_WARNING: Method 'java.lang.String.indexOf' was converted to 'System.String.IndexOf' which may throw an exception. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1101'"
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int longitudeEnd = geoURIWithoutQuery.IndexOf(',', latitudeEnd + 1);
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double latitude, longitude, altitude;
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try
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{
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latitude = System.Double.Parse(geoURIWithoutQuery.Substring(0, (latitudeEnd) - (0)));
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if (longitudeEnd < 0)
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{
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longitude = System.Double.Parse(geoURIWithoutQuery.Substring(latitudeEnd + 1));
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altitude = 0.0;
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}
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else
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{
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longitude = System.Double.Parse(geoURIWithoutQuery.Substring(latitudeEnd + 1, (longitudeEnd) - (latitudeEnd + 1)));
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altitude = System.Double.Parse(geoURIWithoutQuery.Substring(longitudeEnd + 1));
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}
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}
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catch (System.FormatException nfe)
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{
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return null;
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}
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return new GeoParsedResult(rawText.StartsWith("GEO:")?"geo:" + rawText.Substring(4):rawText, latitude, longitude, altitude);
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}
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}
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}
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