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#1: Read the hyperlink element and added a simple nvg point element class.
1 parent 116118e commit 811cbe3

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8 files changed

+251
-2
lines changed

8 files changed

+251
-2
lines changed

‎NVGViewer/NVG.Data/NVG.Data.csproj

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@@ -41,6 +41,8 @@
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</ItemGroup>
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<ItemGroup>
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<Compile Include="NvgElement.cs" />
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<Compile Include="NvgHyperlinkElement.cs" />
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<Compile Include="NvgPointElement.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />

‎NVGViewer/NVG.Data/NvgElement.cs

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@@ -14,9 +14,31 @@
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* limitations under the License.
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*/
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using System.Collections.Generic;
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namespace NVG.Data
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{
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/// <summary>
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/// Represents a NVG element.
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/// </summary>
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public class NvgElement
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{
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/// <summary>
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/// Creates a new NVG element instance.
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/// </summary>
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public NvgElement()
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{
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HyperlinkElements = new List<NvgHyperlinkElement>();
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}
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/// <summary>
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/// The version of this NVG element.
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/// </summary>
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public string Version { get; set; }
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/// <summary>
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/// The hyperlink elements of this NVG element.
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/// </summary>
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public ICollection<NvgHyperlinkElement> HyperlinkElements { get; private set; }
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}
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}

‎NVGViewer/NVG.Data/NvgHyperlinkElement.cs

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@@ -0,0 +1,41 @@
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/*
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* Copyright 2016 Jan Tschada
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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.Collections.Generic;
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namespace NVG.Data
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{
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/// <summary>
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/// Represents a NVG hyperlink element.
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/// </summary>
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public class NvgHyperlinkElement
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{
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public NvgHyperlinkElement()
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{
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PointElements = new List<NvgPointElement>();
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}
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/// <summary>
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/// The link this element refers to.
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/// </summary>
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public string Url { get; set; }
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/// <summary>
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/// The point elements of this hyperlink element.
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/// </summary>
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public ICollection<NvgPointElement> PointElements { get; private set; }
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}
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}

‎NVGViewer/NVG.Data/NvgPointElement.cs

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@@ -0,0 +1,34 @@
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/*
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* Copyright 2016 Jan Tschada
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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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namespace NVG.Data
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{
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/// <summary>
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/// Represents a NVG point element.
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/// </summary>
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public class NvgPointElement
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{
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public string Id { get; set; }
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public string Label { get; set; }
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public double X { get; set; }
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public double Y { get; set; }
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public string SymbolCode { get; set; }
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}
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}

‎NVGViewer/NVG.IO.Testing/NVG.IO.Testing.csproj

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@@ -54,10 +54,22 @@
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<ItemGroup>
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<None Include="Data\AIS.nvg" />
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<None Include="Data\AIS.nvg">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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</None>
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<None Include="Data\Demo-Link16-recording.nvg" />
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<None Include="Data\Demo-NFFI-recording.nvg" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\NVG.Data\NVG.Data.csproj">
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<Project>{c928e8ed-e179-45d6-93ee-938690c41309}</Project>
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<Name>NVG.Data</Name>
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</ProjectReference>
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<ProjectReference Include="..\NVG.IO\NVG.IO.csproj">
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<Project>{a3bd70bd-f73a-4f63-a980-1c9fea534d1e}</Project>
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<Name>NVG.IO</Name>
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</ProjectReference>
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</ItemGroup>
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<Choose>
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<When Condition="'$(VisualStudioVersion)' == '10.0' And '$(IsCodedUITest)' == 'True'">
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<ItemGroup>

‎NVGViewer/NVG.IO.Testing/NvgReaderTestSuite.cs

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@@ -15,6 +15,7 @@
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*/
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1717
using Microsoft.VisualStudio.TestTools.UnitTesting;
18+
using System.IO;
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1920
namespace NVG.IO.Testing
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{
@@ -24,6 +25,14 @@ public class NvgReaderTestSuite
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[TestMethod]
2526
public void TestNvgReadAis()
2627
{
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var aisFile = @"Data\AIS.nvg";
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Assert.IsTrue(File.Exists(aisFile), @"The NVG file does not exists!");
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var reader = new NvgReader(aisFile);
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var element = reader.ReadNextElement();
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Assert.IsNotNull(element, @"The NVG element must not be null!");
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Assert.AreEqual(@"0.3", element.Version, @"The NVG element version is not equal to 0.3!");
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}
2837
}
2938
}

‎NVGViewer/NVG.IO/NVG.IO.csproj

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@@ -43,6 +43,12 @@
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<Compile Include="NvgReader.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\NVG.Data\NVG.Data.csproj">
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<Project>{c928e8ed-e179-45d6-93ee-938690c41309}</Project>
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<Name>NVG.Data</Name>
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</ProjectReference>
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
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Other similar extension points exist, see Microsoft.Common.targets.

‎NVGViewer/NVG.IO/NvgReader.cs

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@@ -14,9 +14,132 @@
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* limitations under the License.
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*/
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using NVG.Data;
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using System;
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using System.Xml;
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1721
namespace NVG.IO
1822
{
19-
public class NvgReader
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/// <summary>
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/// Represents a NVG reader for XML documents.
25+
/// </summary>
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public class NvgReader : IDisposable
2027
{
28+
private readonly XmlTextReader _xmlTextReader;
29+
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/// <summary>
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/// Creates a new reader instance using the specified file.
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/// </summary>
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/// <param name="filePath">The path to the NVG file.</param>
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public NvgReader(string filePath)
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{
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_xmlTextReader = new XmlTextReader(filePath);
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}
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/// <summary>
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/// Reads the next NVG element from the stream.
41+
/// </summary>
42+
/// <returns>The next NVG element or <code>null</code> when there are no more NVG elements.</returns>
43+
public NvgElement ReadNextElement()
44+
{
45+
while(_xmlTextReader.Read())
46+
{
47+
switch (_xmlTextReader.NodeType)
48+
{
49+
case XmlNodeType.Element:
50+
if (0 == string.CompareOrdinal(@"nvg", _xmlTextReader.Name.ToLowerInvariant()))
51+
{
52+
return ReadNvgElement();
53+
}
54+
break;
55+
}
56+
}
57+
return null;
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}
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private NvgElement ReadNvgElement()
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{
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NvgElement element = new NvgElement();
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// Read the NVG attributes
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while (_xmlTextReader.MoveToNextAttribute())
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{
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if (0 == string.CompareOrdinal(@"version", _xmlTextReader.Name))
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{
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element.Version = _xmlTextReader.Value;
70+
}
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}
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while (_xmlTextReader.Read())
74+
{
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switch (_xmlTextReader.NodeType)
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{
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case XmlNodeType.Element:
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if (0 == string.CompareOrdinal(@"a", _xmlTextReader.Name.ToLowerInvariant()))
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{
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var hyperlinkElement = ReadHyperlinkElement();
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element.HyperlinkElements.Add(hyperlinkElement);
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}
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break;
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case XmlNodeType.EndElement:
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if (0 == string.CompareOrdinal(@"nvg", _xmlTextReader.Name.ToLowerInvariant()))
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{
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return element;
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}
90+
break;
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case XmlNodeType.Attribute:
93+
break;
94+
}
95+
}
96+
return null;
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}
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private NvgHyperlinkElement ReadHyperlinkElement()
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{
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NvgHyperlinkElement hyperlinkElement = new NvgHyperlinkElement();
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// Read the hyperlink attributes
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while (_xmlTextReader.MoveToNextAttribute())
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{
106+
if (0 == string.CompareOrdinal(@"href", _xmlTextReader.Name))
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{
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hyperlinkElement.Url = _xmlTextReader.Value;
109+
}
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}
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while (_xmlTextReader.Read())
113+
{
114+
switch (_xmlTextReader.NodeType)
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{
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case XmlNodeType.Element:
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if (0 == string.CompareOrdinal(@"point", _xmlTextReader.Name.ToLowerInvariant()))
118+
{
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// TODO: Read the next point element
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}
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break;
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case XmlNodeType.EndElement:
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if (0 == string.CompareOrdinal(@"a", _xmlTextReader.Name.ToLowerInvariant()))
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{
126+
return hyperlinkElement;
127+
}
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break;
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case XmlNodeType.Attribute:
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break;
132+
}
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}
134+
return null;
135+
}
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/// <summary>
138+
/// Disposes this reader instance.
139+
/// </summary>
140+
public void Dispose()
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{
142+
_xmlTextReader.Dispose();
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}
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}
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}

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