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‎AssetGenerator.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AssetGenerator", "AssetGenerator\AssetGenerator.csproj", "{5C191E9A-6B9F-4E07-B7FF-45AFD928D02D}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{5C191E9A-6B9F-4E07-B7FF-45AFD928D02D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{5C191E9A-6B9F-4E07-B7FF-45AFD928D02D}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{5C191E9A-6B9F-4E07-B7FF-45AFD928D02D}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{5C191E9A-6B9F-4E07-B7FF-45AFD928D02D}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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EndGlobal

‎AssetGenerator/AndroidAssetGenerator.cs‎

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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Threading.Tasks;
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using SkiaSharp.Extended.Svg;
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namespace AssetGenerator
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{
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public class AndroidAssetGenerator : IAssetGenerator
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{
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public async Task CreateAsset(string filepath, string filename, string destinationDirectory, int quality)
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{
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var resourceTypes = new Dictionary<AndroidResourceType, float>
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{
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// Scale factors
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{AndroidResourceType.LDPI, 0.75f},
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{AndroidResourceType.MDPI, 1},
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{AndroidResourceType.HDPI, 1.5f},
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{AndroidResourceType.XHDPI, 2f},
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{AndroidResourceType.XXHDPI, 3f},
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{AndroidResourceType.XXXHDPI, 4f}
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};
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foreach (var resourceType in resourceTypes)
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try
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{
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var name = Enum.GetName(typeof(AndroidResourceType), resourceType.Key);
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var resourceDirectoryName = $"drawable-{name.ToLowerInvariant()}";
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var svg = new SKSvg();
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try
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{
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svg.Load(filepath);
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}
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catch (Exception e)
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{
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Console.WriteLine($"Unexpected error when parsing asset: {filepath}");
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Console.WriteLine("Error: " + e.Message);
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Console.WriteLine("Exiting with error 1");
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Environment.Exit(1);
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}
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var width = (int) (svg.CanvasSize.Width * resourceType.Value);
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var height = (int) (svg.CanvasSize.Height * resourceType.Value);
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var filenameWithExtension = $"{filename}.png";
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var resourceDir = Path.Combine(destinationDirectory, resourceDirectoryName);
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if (!Directory.Exists(resourceDir))
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{
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Directory.CreateDirectory(resourceDir);
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}
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var finalPath = Path.Combine(resourceDir, filenameWithExtension);
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await PngHelper.GeneratePng(width, height, filepath, finalPath, quality);
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Console.WriteLine($"Successfully created asset: {finalPath}");
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}
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catch (Exception e)
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{
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Console.WriteLine($"Failed to generate asset: {filename}");
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Console.WriteLine("Error: " + e.Message);
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Console.WriteLine("Exiting with error 1");
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Environment.Exit(1);
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}
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}
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}
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}

‎AssetGenerator/AndroidResourceType.cs‎

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namespace AssetGenerator
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{
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public enum AndroidResourceType
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{
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LDPI,
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MDPI,
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HDPI,
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XHDPI,
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XXHDPI,
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XXXHDPI
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}
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}

‎AssetGenerator/AssetGenerator.csproj‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{5C191E9A-6B9F-4E07-B7FF-45AFD928D02D}</ProjectGuid>
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<OutputType>Exe</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>AssetGenerator</RootNamespace>
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<AssemblyName>AssetGenerator</AssemblyName>
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<TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<LangVersion>7.2</LangVersion>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="CommandLine, Version=2.2.1.0, Culture=neutral, PublicKeyToken=de6f01bd326f8c32">
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<HintPath>..\packages\CommandLineParser.2.2.1\lib\net45\CommandLine.dll</HintPath>
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</Reference>
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<Reference Include="SkiaSharp, Version=1.60.0.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756">
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<HintPath>..\packages\SkiaSharp.1.60.1\lib\net45\SkiaSharp.dll</HintPath>
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</Reference>
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<Reference Include="SkiaSharp.Extended.Svg, Version=1.60.0.0, Culture=neutral, PublicKeyToken=0738eb9f132ed756">
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<HintPath>..\packages\SkiaSharp.Svg.1.60.0\lib\netstandard2.0\SkiaSharp.Extended.Svg.dll</HintPath>
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</Reference>
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<Reference Include="System" />
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<Reference Include="System.Console, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
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<HintPath>..\packages\System.Console.4.0.0-rc2-24027\lib\net46\System.Console.dll</HintPath>
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</Reference>
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<Reference Include="System.Core" />
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<Reference Include="System.Data" />
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<Reference Include="System.IO, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
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<HintPath>..\packages\System.IO.4.1.0-rc2-24027\lib\net462\System.IO.dll</HintPath>
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</Reference>
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<Reference Include="System.Linq, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
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<HintPath>..\packages\System.Linq.4.1.0-rc2-24027\lib\net462\System.Linq.dll</HintPath>
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</Reference>
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<Reference Include="System.Reflection, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
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<HintPath>..\packages\System.Reflection.4.1.0-rc2-24027\lib\net462\System.Reflection.dll</HintPath>
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</Reference>
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<Reference Include="System.Reflection.TypeExtensions, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
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<HintPath>..\packages\System.Reflection.TypeExtensions.4.1.0-rc2-24027\lib\net462\System.Reflection.TypeExtensions.dll</HintPath>
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</Reference>
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<Reference Include="System.Runtime, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
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<HintPath>..\packages\System.Runtime.4.1.0-rc2-24027\lib\net462\System.Runtime.dll</HintPath>
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</Reference>
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<Reference Include="System.Runtime.Extensions, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
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<HintPath>..\packages\System.Runtime.Extensions.4.1.0-rc2-24027\lib\net462\System.Runtime.Extensions.dll</HintPath>
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</Reference>
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<Reference Include="System.Xml" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="AndroidAssetGenerator.cs" />
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<Compile Include="AndroidResourceType.cs" />
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<Compile Include="DeviceType.cs" />
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<Compile Include="IAssetGenerator.cs" />
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<Compile Include="IOSAssetGenerator.cs" />
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<Compile Include="Options.cs" />
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<Compile Include="PngHelper.cs" />
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<Compile Include="Program.cs" />
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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="packages.config" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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<Import Project="..\packages\SkiaSharp.1.60.0\build\net45\SkiaSharp.targets" Condition="Exists('..\packages\SkiaSharp.1.60.0\build\net45\SkiaSharp.targets')" />
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<Import Project="..\packages\SkiaSharp.1.60.1\build\net45\SkiaSharp.targets" Condition="Exists('..\packages\SkiaSharp.1.60.1\build\net45\SkiaSharp.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.
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<Target Name="BeforeBuild">
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</Target>
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<Target Name="AfterBuild">
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</Target>
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-->
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</Project>

‎AssetGenerator/DeviceType.cs‎

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namespace AssetGenerator
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{
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public enum DeviceType
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{
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Android,
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iOS
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}
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}

‎AssetGenerator/IAssetGenerator.cs‎

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using System.Threading.Tasks;
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namespace AssetGenerator
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{
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public interface IAssetGenerator
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{
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Task CreateAsset(string filepath, string filename, string destinationDirectory, int quality);
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}
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}

‎AssetGenerator/IOSAssetGenerator.cs‎

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using System;
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using System.IO;
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using System.Threading.Tasks;
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using SkiaSharp.Extended.Svg;
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namespace AssetGenerator
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{
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public class IOSAssetGenerator : IAssetGenerator
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{
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public async Task CreateAsset(string filepath, string filename, string destinationDirectory, int quality)
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{
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for (var i = 1; i < 4; i++)
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{
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try
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{
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var svg = new SKSvg();
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try
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{
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svg.Load(filepath);
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}
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catch (Exception e)
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{
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Console.WriteLine($"Unexpected error when parsing asset: {filepath}");
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Console.WriteLine("Error: " + e.Message);
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Console.WriteLine("Exiting with error 1");
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Environment.Exit(1);
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}
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string newFilename;
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if (i == 1)
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newFilename = filename + ".png";
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else
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newFilename = filename + $"@{i}x.png";
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var width = (int) (svg.CanvasSize.Width * i);
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var height = (int) (svg.CanvasSize.Height * i);
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await PngHelper.GeneratePng(width, height, filepath, Path.Combine(destinationDirectory, newFilename), quality);
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Console.WriteLine($"Successfully created asset: {Path.GetFileName(newFilename)}");
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}
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catch (Exception e)
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{
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Console.WriteLine($"Failed to generate asset: {filename}");
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Console.WriteLine("Error: " + e.Message);
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Console.WriteLine("Exiting with error 1");
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Environment.Exit(1);
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}
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}
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}
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}
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}

‎AssetGenerator/Options.cs‎

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using System.Collections.Generic;
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using CommandLine;
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using CommandLine.Text;
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namespace AssetGenerator
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{
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public class Options
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{
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[Option('m', "mode", HelpText = "Specify which assets to build. ios or android", Required = true)]
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public string Mode { get; set; }
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[Option('s', "source", Separator = '-', HelpText = "Specify source folder", Required = false)]
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public string SourceFolderPath { get; set; }
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[Option('d', "destination", Separator = '-', HelpText = "Specify destination folder", Required = false)]
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public string DestinationFolderPath { get; set; }
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[Option('q', "quality", Separator = '-', HelpText = "Specify quality of rendered png files (100 is max)", Required = false, Default = 80)]
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public int Quality { get; set; }
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[Usage(ApplicationAlias = "AssetGenerator")]
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public static IEnumerable<Example> Examples
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{
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get
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{
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yield return new Example("Common usage",
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new Options
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{
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Mode = "iOS",
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SourceFolderPath = "sourcefolder",
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DestinationFolderPath = "destinationfolder",
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Quality = 80
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});
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}
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}
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}
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}

‎AssetGenerator/PngHelper.cs‎

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using System.IO;
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using System.Threading.Tasks;
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using SkiaSharp;
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using SKSvg = SkiaSharp.Extended.Svg.SKSvg;
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namespace AssetGenerator
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{
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public class PngHelper
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{
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public static async Task GeneratePng(int width, int height, string filepath, string filename, int quality)
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{
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var svg2 = new SKSvg(new SKSize(width, height));
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svg2.Load(filepath);
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using (var image = SKImage.FromPicture(svg2.Picture, new SKSizeI(width, height)))
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{
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using (var data = image.Encode(SKEncodedImageFormat.Png, quality))
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{
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// save the data to a stream
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using (var stream = File.OpenWrite(filename))
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{
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data.SaveTo(stream);
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await stream.FlushAsync();
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}
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}
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}
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}
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}
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}

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