Added a render test sample.

To measure FPS with animations.

Avalonia.sln

@@ -171,6 +171,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GtkInteropDemo", "samples\i
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Avalonia.DotNetFrameworkRuntime", "src\Avalonia.DotNetFrameworkRuntime\Avalonia.DotNetFrameworkRuntime.csproj", "{4A1ABB09-9047-4BD5-A4AD-A055E52C5EE0}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RenderTest", "samples\RenderTest\RenderTest.csproj", "{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}"
+EndProject
 Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
 		src\Skia\Avalonia.Skia\Avalonia.Skia.projitems*{2f59f3d0-748d-4652-b01e-e0d954756308}*SharedItemsImports = 13
@@ -2362,6 +2364,46 @@ Global
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 		{4A1ABB09-9047-4BD5-A4AD-A055E52C5EE0}.Release|x86.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|Any CPU.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|Any CPU.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|iPhone.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|iPhone.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|iPhoneSimulator.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|iPhoneSimulator.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|Mono.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|Mono.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|x86.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Ad-Hoc|x86.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.AppStore|Any CPU.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.AppStore|Any CPU.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.AppStore|iPhone.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.AppStore|iPhone.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.AppStore|iPhoneSimulator.ActiveCfg = Release|Any CPU
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+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.AppStore|Mono.Build.0 = Release|Any CPU
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+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|iPhone.ActiveCfg = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|iPhone.Build.0 = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|Mono.ActiveCfg = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|Mono.Build.0 = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Debug|x86.Build.0 = Debug|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|iPhone.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|iPhone.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|Mono.ActiveCfg = Release|Any CPU
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|Mono.Build.0 = Release|Any CPU
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+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
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@@ -2417,5 +2459,6 @@ Global
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 		{BD7F352C-6DC1-4740-BAF2-2D34A038728C} = {A0CC0258-D18C-4AB3-854F-7101680FC3F9}
+		{F1FDC5B0-4654-416F-AE69-E3E9BBD87801} = {9B9E3891-2366-4253-A952-D08BCEB71098}
 	EndGlobalSection
 EndGlobal

samples/RenderTest/App.config

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
+    </startup>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="Mono.Cairo" publicKeyToken="0738eb9f132ed756" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
+</configuration>

samples/RenderTest/App.xaml

@@ -0,0 +1,6 @@
+<Application xmlns="https://github.com/avaloniaui">
+  <Application.Styles>
+    <StyleInclude Source="resm:Avalonia.Themes.Default.DefaultTheme.xaml?assembly=Avalonia.Themes.Default"/>
+    <StyleInclude Source="resm:Avalonia.Themes.Default.Accents.BaseLight.xaml?assembly=Avalonia.Themes.Default"/>
+  </Application.Styles>
+</Application>

samples/RenderTest/App.xaml.cs

@@ -0,0 +1,16 @@
+// Copyright (c) The Avalonia Project. All rights reserved.
+// Licensed under the MIT license. See licence.md file in the project root for full license information.
+
+using Avalonia;
+using Avalonia.Markup.Xaml;
+
+namespace RenderTest
+{
+    public class App : Application
+    {
+        public override void Initialize()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+    }
+}

samples/RenderTest/MainWindow.xaml

@@ -0,0 +1,3 @@
+<Window xmlns="https://github.com/avaloniaui"
+        Title="Avalonia Render Test">
+</Window>

samples/RenderTest/MainWindow.xaml.cs

@@ -0,0 +1,82 @@
+// Copyright (c) The Avalonia Project. All rights reserved.
+// Licensed under the MIT license. See licence.md file in the project root for full license information.
+
+using System;
+using System.Reactive.Linq;
+using Avalonia;
+using Avalonia.Animation;
+using Avalonia.Controls;
+using Avalonia.Controls.Shapes;
+using Avalonia.Data;
+using Avalonia.Layout;
+using Avalonia.Markup.Xaml;
+using Avalonia.Media;
+using Avalonia.Rendering;
+
+namespace RenderTest
+{
+    public class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            this.InitializeComponent();
+            this.CreateAnimations();
+            this.AttachDevTools();
+            RendererMixin.DrawFpsCounter = true;
+        }
+
+        private void InitializeComponent()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+
+        private void CreateAnimations()
+        {
+            const int Count = 100;
+            var panel = new WrapPanel();
+
+            for (var i = 0; i < Count; ++i)
+            {
+                var element = new Panel
+                {
+                    Children =
+                    {
+                        new Ellipse
+                        {
+                            Width = 100,
+                            Height = 100,
+                            Fill = Brushes.Blue,
+                        },
+                        new Path
+                        {
+                            Data = StreamGeometry.Parse(
+                                "F1 M 16.6309,18.6563C 17.1309,8.15625 29.8809,14.1563 29.8809,14.1563C 30.8809,11.1563 34.1308,11.4063 34.1308,11.4063C 33.5,12 34.6309,13.1563 34.6309,13.1563C 32.1309,13.1562 31.1309,14.9062 31.1309,14.9062C 41.1309,23.9062 32.6309,27.9063 32.6309,27.9062C 24.6309,24.9063 21.1309,22.1562 16.6309,18.6563 Z M 16.6309,19.9063C 21.6309,24.1563 25.1309,26.1562 31.6309,28.6562C 31.6309,28.6562 26.3809,39.1562 18.3809,36.1563C 18.3809,36.1563 18,38 16.3809,36.9063C 15,36 16.3809,34.9063 16.3809,34.9063C 16.3809,34.9063 10.1309,30.9062 16.6309,19.9063 Z"),
+                            Fill = Brushes.Green,
+                            HorizontalAlignment = HorizontalAlignment.Center,
+                            VerticalAlignment = VerticalAlignment.Center,
+                            RenderTransform = new ScaleTransform(2, 2),
+                        }
+                    },
+                    Margin = new Thickness(4),
+                    RenderTransform = new ScaleTransform(),
+                };
+
+                var start = Animate.Stopwatch.Elapsed;
+                var index = i;
+                var degrees = Animate.Timer
+                    .Select(x => (x - start).TotalSeconds)
+                    .Where(x => (x % Count) >= index && (x % Count) < index + 1)
+                    .Select(x => (x % 1) / 1);
+
+                element.RenderTransform.Bind(
+                    ScaleTransform.ScaleXProperty,
+                    degrees,
+                    BindingPriority.Animation);
+
+                panel.Children.Add(element);
+            }
+
+            Content = panel;
+        }
+    }
+}

samples/RenderTest/Program.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Linq;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Logging.Serilog;
+using Avalonia.Platform;
+using Serilog;
+
+namespace RenderTest
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            InitializeLogging();
+
+            // TODO: Make this work with GTK/Skia/Cairo depending on command-line args
+            // again.
+            AppBuilder.Configure<App>()
+                .UsePlatformDetect()
+                .Start<MainWindow>();
+        }
+
+        // This will be made into a runtime configuration extension soon!
+        private static void InitializeLogging()
+        {
+#if DEBUG
+            SerilogLogger.Initialize(new LoggerConfiguration()
+                .MinimumLevel.Warning()
+                .WriteTo.Trace(outputTemplate: "{Area}: {Message}")
+                .CreateLogger());
+#endif
+        }
+    }
+}

samples/RenderTest/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+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("RenderTest")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("RenderTest")]
+[assembly: AssemblyCopyright("Copyright ©  2016")]
+[assembly: AssemblyTrademark("")]
+[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("f1fdc5b0-4654-416f-ae69-e3e9bbd87801")]
+
+// 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")]

samples/RenderTest/RenderTest.csproj

@@ -0,0 +1,192 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{F1FDC5B0-4654-416F-AE69-E3E9BBD87801}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>RenderTest</RootNamespace>
+    <AssemblyName>RenderTest</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <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' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject />
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Serilog, Version=1.5.0.0, Culture=neutral, PublicKeyToken=24c2f752a8e58a10, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Serilog.1.5.14\lib\net45\Serilog.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="Serilog.FullNetFx, Version=1.5.0.0, Culture=neutral, PublicKeyToken=24c2f752a8e58a10, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Serilog.1.5.14\lib\net45\Serilog.FullNetFx.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Reactive.Core, Version=3.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\System.Reactive.Core.3.0.0\lib\net45\System.Reactive.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System.Reactive.Interfaces, Version=3.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\System.Reactive.Interfaces.3.0.0\lib\net45\System.Reactive.Interfaces.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System.Reactive.Linq, Version=3.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\System.Reactive.Linq.3.0.0\lib\net45\System.Reactive.Linq.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System.Reactive.PlatformServices, Version=3.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\System.Reactive.PlatformServices.3.0.0\lib\net45\System.Reactive.PlatformServices.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System.Reactive.Windows.Threading, Version=3.0.0.0, Culture=neutral, PublicKeyToken=94bc3704cddfc263, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\System.Reactive.Windows.Threading.3.0.0\lib\net45\System.Reactive.Windows.Threading.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+    <Reference Include="WindowsBase" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="App.xaml.cs">
+      <DependentUpon>App.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="MainWindow.xaml.cs">
+      <DependentUpon>MainWindow.xaml</DependentUpon>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="App.xaml">
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\Avalonia.Animation\Avalonia.Animation.csproj">
+      <Project>{d211e587-d8bc-45b9-95a4-f297c8fa5200}</Project>
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+    </ProjectReference>
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+      <Name>Avalonia.Logging.Serilog</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\src\Avalonia.ReactiveUI\Avalonia.ReactiveUI.csproj">
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+    </ProjectReference>
+    <ProjectReference Include="..\..\src\Gtk\Avalonia.Gtk\Avalonia.Gtk.csproj">
+      <Project>{54f237d5-a70a-4752-9656-0c70b1a7b047}</Project>
+      <Name>Avalonia.Gtk</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\src\Markup\Avalonia.Markup.Xaml\Avalonia.Markup.Xaml.csproj">
+      <Project>{3e53a01a-b331-47f3-b828-4a5717e77a24}</Project>
+      <Name>Avalonia.Markup.Xaml</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\src\Markup\Avalonia.Markup\Avalonia.Markup.csproj">
+      <Project>{6417e941-21bc-467b-a771-0de389353ce6}</Project>
+      <Name>Avalonia.Markup</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\src\Windows\Avalonia.Direct2D1\Avalonia.Direct2D1.csproj">
+      <Project>{3e908f67-5543-4879-a1dc-08eace79b3cd}</Project>
+      <Name>Avalonia.Direct2D1</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\src\Windows\Avalonia.Win32\Avalonia.Win32.csproj">
+      <Project>{811a76cf-1cf6-440f-963b-bbe31bd72a82}</Project>
+      <Name>Avalonia.Win32</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="MainWindow.xaml">
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+  </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>

samples/RenderTest/RenderTest.v2.ncrunchproject

@@ -0,0 +1,26 @@
+<ProjectConfiguration>
+  <AutoDetectNugetBuildDependencies>true</AutoDetectNugetBuildDependencies>
+  <BuildPriority>1000</BuildPriority>
+  <CopyReferencedAssembliesToWorkspace>false</CopyReferencedAssembliesToWorkspace>
+  <ConsiderInconclusiveTestsAsPassing>false</ConsiderInconclusiveTestsAsPassing>
+  <PreloadReferencedAssemblies>false</PreloadReferencedAssemblies>
+  <AllowDynamicCodeContractChecking>true</AllowDynamicCodeContractChecking>
+  <AllowStaticCodeContractChecking>false</AllowStaticCodeContractChecking>
+  <AllowCodeAnalysis>false</AllowCodeAnalysis>
+  <IgnoreThisComponentCompletely>false</IgnoreThisComponentCompletely>
+  <RunPreBuildEvents>false</RunPreBuildEvents>
+  <RunPostBuildEvents>false</RunPostBuildEvents>
+  <PreviouslyBuiltSuccessfully>true</PreviouslyBuiltSuccessfully>
+  <InstrumentAssembly>true</InstrumentAssembly>
+  <PreventSigningOfAssembly>false</PreventSigningOfAssembly>
+  <AnalyseExecutionTimes>true</AnalyseExecutionTimes>
+  <DetectStackOverflow>true</DetectStackOverflow>
+  <IncludeStaticReferencesInWorkspace>true</IncludeStaticReferencesInWorkspace>
+  <DefaultTestTimeout>60000</DefaultTestTimeout>
+  <UseBuildConfiguration />
+  <UseBuildPlatform />
+  <ProxyProcessPath />
+  <UseCPUArchitecture>AutoDetect</UseCPUArchitecture>
+  <MSTestThreadApartmentState>STA</MSTestThreadApartmentState>
+  <BuildProcessArchitecture>x86</BuildProcessArchitecture>
+</ProjectConfiguration>

samples/RenderTest/packages.config

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Serilog" version="1.5.14" targetFramework="net45" />
+  <package id="System.Reactive" version="3.0.0" targetFramework="net45" />
+  <package id="System.Reactive.Core" version="3.0.0" targetFramework="net45" />
+  <package id="System.Reactive.Interfaces" version="3.0.0" targetFramework="net45" />
+  <package id="System.Reactive.Linq" version="3.0.0" targetFramework="net45" />
+  <package id="System.Reactive.PlatformServices" version="3.0.0" targetFramework="net45" />
+  <package id="System.Reactive.Windows.Threading" version="3.0.0" targetFramework="net45" />
+</packages>

src/Avalonia.Controls/WrapPanel.cs

@@ -17,7 +17,7 @@ namespace Avalonia.Controls
     /// Subsequent ordering happens sequentially from top to bottom or from right to left, 
     /// depending on the value of the Orientation property.
     /// </summary>
-    internal class WrapPanel : Panel, INavigableContainer
+    public class WrapPanel : Panel, INavigableContainer
     {
         /// <summary>
         /// Defines the <see cref="Orientation"/> property.