Importing the project

mephraim · Jul 9, 2009 · c2568e0 · c2568e0
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diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,3 @@
+Tests/*.suo
+*/bin/*
+*/obj/*
diff --git a/GhostScriptSharp/GhostscriptSharp.cs b/GhostScriptSharp/GhostscriptSharp.cs
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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Runtime.InteropServices;
+
+namespace GhostscriptSharp
+{
+    /// <summary>
+    /// Wraps the Ghostscript API with a C# interface
+    /// </summary>
+    public class GhostscriptWrapper
+    {
+        #region Hooks into Ghostscript DLL
+        [DllImport("gsdll32.dll", EntryPoint = "gsapi_new_instance")]
+        private static extern int CreateAPIInstance(out IntPtr pinstance, IntPtr caller_handle);
+
+        [DllImport("gsdll32.dll", EntryPoint = "gsapi_init_with_args")]
+        private static extern int InitAPI(IntPtr instance, int argc, string[] argv);
+
+        [DllImport("gsdll32.dll", EntryPoint = "gsapi_exit")]
+        private static extern int ExitAPI(IntPtr instance);
+
+        [DllImport("gsdll32.dll", EntryPoint = "gsapi_delete_instance")]
+        private static extern void DeleteAPIInstance(IntPtr instance);
+        #endregion
+
+        /// <summary>
+        /// Generates a thumbnail jpg for the pdf at the input path and saves it 
+        /// at the output path
+        /// </summary>
+        public static void GeneratePageThumb(string inputPath, string outputPath, int page, int width, int height)
+        {
+            GeneratePageThumbs(inputPath, outputPath, page, page, width, height);
+        }
+
+        /// <summary>
+        /// Generates a collection of thumbnail jpgs for the pdf at the input path 
+        /// starting with firstPage and ending with lastPage.
+        /// Put "%d" somewhere in the output path to have each of the pages numbered
+        /// </summary>
+        public static void GeneratePageThumbs(string inputPath, string outputPath, int firstPage, int lastPage, int width, int height)
+        {
+            CallAPI(GetArgs(inputPath, outputPath, firstPage, lastPage, width, height));
+        }
+
+        /// <summary>
+        /// Calls the Ghostscript API with a collection of arguments to be passed to it
+        /// </summary>
+        private static void CallAPI(string[] args)
+        {
+            // Get a pointer to an instance of the Ghostscript API and run the API with the current arguments
+            IntPtr gsInstancePtr;
+            CreateAPIInstance(out gsInstancePtr, IntPtr.Zero);
+            InitAPI(gsInstancePtr, args.Length, args);
+
+            Cleanup(gsInstancePtr);
+        }
+
+        /// <summary>
+        /// Frees up the memory used for the API arguments and clears the Ghostscript API instance
+        /// </summary>
+        private static void Cleanup(IntPtr gsInstancePtr)
+        {
+            ExitAPI(gsInstancePtr);
+            DeleteAPIInstance(gsInstancePtr);
+        }
+
+        /// <summary>
+        /// Returns an array of arguments to be sent to the Ghostscript API
+        /// </summary>
+        /// <param name="inputPath">Path to the source file</param>
+        /// <param name="outputPath">Path to the output file</param>
+        /// <param name="firstPage">The page of the file to start on</param>
+        /// <param name="lastPage">The page of the file to end on</param>
+        private static string[] GetArgs(string inputPath, string outputPath, int firstPage, int lastPage, int width, int height)
+        {
+            return new[]
+            {
+                // Keep gs from writing information to standard output
+                "-q",                     
+                "-dQUIET",
+
+                "-dPARANOIDSAFER",       // Run this command in safe mode
+                "-dBATCH",               // Keep gs from going into interactive mode
+                "-dNOPAUSE",             // Do not prompt and pause for each page
+                "-dNOPROMPT",            // Disable prompts for user interaction           
+                "-dMaxBitmap=500000000", // Set high for better performance
+
+                // Set the starting and ending pages
+                String.Format("-dFirstPage={0}", firstPage),
+                String.Format("-dLastPage={0}", lastPage),   
+
+                // Configure the output anti-aliasing, resolution, etc
+                "-dAlignToPixels=0",
+                "-dGridFitTT=0",
+                "-sDEVICE=jpeg",
+                "-dTextAlphaBits=4",
+                "-dGraphicsAlphaBits=4",
+                String.Format("-r{0}x{1}", width, height),
+
+                // Set the input and output files
+                String.Format("-sOutputFile={0}", outputPath),
+                inputPath
+            };
+        }
+    }
+}
diff --git a/GhostScriptSharp/GhostscriptSharp.csproj b/GhostScriptSharp/GhostscriptSharp.csproj
@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>9.0.30729</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{56605627-E6FA-4F47-9440-FB877CEA5C84}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>GhostscriptSharp</RootNamespace>
+    <AssemblyName>GhostscriptSharp</AssemblyName>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Xml.Linq">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Data.DataSetExtensions">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="GhostscriptSharp.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
diff --git a/GhostScriptSharp/Properties/AssemblyInfo.cs b/GhostScriptSharp/Properties/AssemblyInfo.cs
@@ -0,0 +1,30 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("GhostscriptSharp")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyProduct("GhostscriptSharp")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("56ecd9b7-8386-481f-8603-3215c77c2eb6")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+[assembly: AssemblyVersion("0.3")]
+[assembly: AssemblyFileVersion("0.3")]
diff --git a/Tests/GhostscriptSharpTests.sln b/Tests/GhostscriptSharpTests.sln
@@ -0,0 +1,26 @@
+
+Microsoft Visual Studio Solution File, Format Version 10.00
+# Visual Studio 2008
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GhostscriptSharpTests", "GhostscriptSharpTests\GhostscriptSharpTests.csproj", "{2B5A3CF6-D6A9-49D5-B88E-419DA34F1C20}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GhostscriptSharp", "..\GhostscriptSharp\GhostscriptSharp.csproj", "{56605627-E6FA-4F47-9440-FB877CEA5C84}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2B5A3CF6-D6A9-49D5-B88E-419DA34F1C20}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2B5A3CF6-D6A9-49D5-B88E-419DA34F1C20}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2B5A3CF6-D6A9-49D5-B88E-419DA34F1C20}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2B5A3CF6-D6A9-49D5-B88E-419DA34F1C20}.Release|Any CPU.Build.0 = Release|Any CPU
+		{56605627-E6FA-4F47-9440-FB877CEA5C84}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{56605627-E6FA-4F47-9440-FB877CEA5C84}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{56605627-E6FA-4F47-9440-FB877CEA5C84}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{56605627-E6FA-4F47-9440-FB877CEA5C84}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/Tests/GhostscriptSharpTests/GhostscriptSharpTests.cs b/Tests/GhostscriptSharpTests/GhostscriptSharpTests.cs
@@ -0,0 +1,40 @@
+using System;
+using NUnit.Framework;
+using GhostscriptSharp;
+using System.IO;
+
+namespace GhostscriptSharpTests
+{
+    [TestFixture]
+    public class GhostscriptSharpTests
+    {
+        private readonly string TEST_FILE_LOCATION      = "test.pdf";
+        private readonly string SINGLE_FILE_LOCATION    = "output.jpg";
+        private readonly string MULTIPLE_FILE_LOCATION  = "output%d.jpg";
+
+        private readonly int MULTIPLE_FILE_PAGE_COUNT = 10;
+
+        [Test]
+        public void GenerateSinglePageThumbnail()
+        {
+            GhostscriptWrapper.GeneratePageThumb(TEST_FILE_LOCATION, SINGLE_FILE_LOCATION, 1, 100, 100);
+            Assert.IsTrue(File.Exists(SINGLE_FILE_LOCATION));
+        }
+
+        [Test]
+        public void GenerateMultiplePageThumbnails()
+        {
+            GhostscriptWrapper.GeneratePageThumbs(TEST_FILE_LOCATION, MULTIPLE_FILE_LOCATION, 1, MULTIPLE_FILE_PAGE_COUNT, 100, 100);
+            for (var i = 1; i <= MULTIPLE_FILE_PAGE_COUNT; i++)
+                Assert.IsTrue(File.Exists(String.Format("output{0}.jpg", i)));
+        }
+
+        [TearDown]
+        public void Cleanup()
+        {
+            File.Delete(SINGLE_FILE_LOCATION);
+            for (var i = 1; i <= MULTIPLE_FILE_PAGE_COUNT; i++)
+                File.Delete(String.Format("output{0}.jpg", i));
+        }
+    }
+}
diff --git a/Tests/GhostscriptSharpTests/GhostscriptSharpTests.csproj b/Tests/GhostscriptSharpTests/GhostscriptSharpTests.csproj
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>9.0.30729</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{2B5A3CF6-D6A9-49D5-B88E-419DA34F1C20}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>GhostScriptSharpTests</RootNamespace>
+    <AssemblyName>GhostScriptSharpTests</AssemblyName>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="nunit.framework, Version=2.5.0.9122, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL" />
+    <Reference Include="System" />
+    <Reference Include="System.Core">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Xml.Linq">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Data.DataSetExtensions">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="GhostscriptSharpTests.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\GhostScriptSharp\GhostscriptSharp.csproj">
+      <Project>{56605627-E6FA-4F47-9440-FB877CEA5C84}</Project>
+      <Name>GhostscriptSharp</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="test.pdf">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="gsdll32.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
diff --git a/Tests/GhostscriptSharpTests/GhostscriptSharpTests.csproj.user b/Tests/GhostscriptSharpTests/GhostscriptSharpTests.csproj.user
@@ -0,0 +1,5 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ProjectView>ShowAllFiles</ProjectView>
+  </PropertyGroup>
+</Project>
diff --git a/Tests/GhostscriptSharpTests/Properties/AssemblyInfo.cs b/Tests/GhostscriptSharpTests/Properties/AssemblyInfo.cs
@@ -0,0 +1,33 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("GhostscriptSharpTests")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyProduct("GhostscriptSharpTests")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("3e435c97-69dc-46ca-a6ed-b207670e02ff")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/Tests/GhostscriptSharpTests/gsdll32.dll b/Tests/GhostscriptSharpTests/gsdll32.dll
diff --git a/Tests/GhostscriptSharpTests/test.pdf b/Tests/GhostscriptSharpTests/test.pdf