CommonReferencesSystemDrawing.csproj

<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <Choose>
        <!--
            When building for Rhino 8 (.NET 7) we need to specifically include System.Drawing.Common
            see https://learn.microsoft.com/en-us/dotnet/core/compatibility/core-libraries/6.0/system-drawing-common-windows-only
        -->
        <When Condition="$(TargetFramework) != 'net48'">
            <ItemGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier($(TargetFramework))) == 'windows'">
                <PackageReference Include="System.Drawing.Common" />
            </ItemGroup>
            <!--
                On Mac we use McNeel's implementation of System.Drawing.Common
                see https://discourse.mcneel.com/t/windows-forms-on-gh-and-rhino-8/171307/13
                and https://discourse.mcneel.com/t/system-drawing-common-not-compatible-with-macos-anymore/166565
            -->
            <ItemGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier($(TargetFramework))) == 'macos'">
                <Reference Include="System.Drawing.Common">
                    <HintPath>$(MSBuildThisFileDirectory)\References\MacOS\System.Drawing.Common.dll</HintPath>
                    <Private>False</Private>
                </Reference>
            </ItemGroup>
            <!--
                There are slight differences for McNeel's implementation of System.Drawing.Common,
                this define allows use to use preprocessor directives to work around those differences. 
            -->
            <PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier($(TargetFramework))) == 'macos'">
                <DefineConstants>$(DefineConstants),USING_MCNEEL_SYSTEM_DRAWING</DefineConstants>
            </PropertyGroup>
        </When>
    </Choose>
</Project>