Solution references

src/PixiEditor.Avalonia/.gitignore

@@ -0,0 +1,454 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
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+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
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+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
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+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
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+BenchmarkDotNet.Artifacts/
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+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
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+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
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+*.log
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+.builds
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+*.svclog
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+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
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+# Visual Studio profiler
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+# Visual Studio Trace Files
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+# TFS 2012 Local Workspace
+$tf/
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+
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+
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+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
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+
+# Visual Studio code coverage results
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+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
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+AutoTest.Net/
+
+# Web workbench (sass)
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+
+# Installshield output folder
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+
+# DocProject is a documentation generator add-in
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+DocProject/Help/*.HxT
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+
+# Click-Once directory
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+
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+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
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+
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+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
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+
+# Microsoft Azure Build Output
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+
+# Microsoft Azure Emulator
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+rcf/
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+# Windows Store app package directories and files
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+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
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+
+# Visual Studio cache files
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+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
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+
+# OpenCover UI analysis results
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+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
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+
+# NVidia Nsight GPU debugger configuration file
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+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
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+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
+
+##
+## Visual studio for Mac
+##
+
+
+# globs
+Makefile.in
+*.userprefs
+*.usertasks
+config.make
+config.status
+aclocal.m4
+install-sh
+autom4te.cache/
+*.tar.gz
+tarballs/
+test-results/
+
+# Mac bundle stuff
+*.dmg
+*.app
+
+# content below from: https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
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+Network Trash Folder
+Temporary Items
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+
+# content below from: https://github.com/github/gitignore/blob/master/Global/Windows.gitignore
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
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+*.msm
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+
+# Windows shortcuts
+*.lnk
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+##
+## Visual Studio Code
+##
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

src/PixiEditor.Avalonia/Directory.Build.props

@@ -0,0 +1,6 @@
+<Project>
+  <PropertyGroup>
+    <Nullable>enable</Nullable>
+    <AvaloniaVersion>11.0.0-preview7</AvaloniaVersion>
+  </PropertyGroup>
+</Project>

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Browser/AppBundle/Logo.svg

@@ -0,0 +1,5 @@
+<svg width="35" height="35" viewBox="0 0 35 35" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M30.4661 34.928C30.5364 34.928 30.6052 34.928 30.6754 34.928C32.8596 34.928 34.654 33.2918 34.9053 31.1752L34.9356 16.9955C34.6872 7.56697 26.9662 0 17.4777 0C7.83263 0 0.0137329 7.8189 0.0137329 17.464C0.0137329 27.0059 7.66618 34.7631 17.1687 34.928H30.4661Z" fill="white"/>
+<path fill-rule="evenodd" clip-rule="evenodd" d="M17.5239 5.948C12.0268 5.948 7.42967 9.80117 6.286 14.954C7.38092 15.2609 8.18385 16.2664 8.18385 17.4593C8.18385 18.6523 7.38092 19.6577 6.286 19.9647C7.42966 25.1175 12.0268 28.9706 17.5239 28.9706C19.525 28.9706 21.4068 28.4601 23.0462 27.562V28.8927H29.0352V17.9365C29.0407 17.7908 29.0352 17.6063 29.0352 17.4593C29.0352 11.1018 23.8814 5.948 17.5239 5.948ZM12.0098 17.4593C12.0098 14.414 14.4786 11.9452 17.5239 11.9452C20.5693 11.9452 23.038 14.414 23.038 17.4593C23.038 20.5047 20.5693 22.9734 17.5239 22.9734C14.4786 22.9734 12.0098 20.5047 12.0098 17.4593Z" fill="#8B44AC"/>
+<path d="M7.36841 17.4517C7.36841 18.4691 6.54368 19.2938 5.52631 19.2938C4.50894 19.2938 3.6842 18.4691 3.6842 17.4517C3.6842 16.4343 4.50894 15.6096 5.52631 15.6096C6.54368 15.6096 7.36841 16.4343 7.36841 17.4517Z" fill="#8B44AC"/>
+</svg>

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Browser/AppBundle/app.css

@@ -0,0 +1,74 @@
+:root {
+    --sat: env(safe-area-inset-top);
+    --sar: env(safe-area-inset-right);
+    --sab: env(safe-area-inset-bottom);
+    --sal: env(safe-area-inset-left);
+}
+
+/* HTML styles for the splash screen */
+
+.highlight {
+    color: white;
+    font-size: 2.5rem;
+    display: block;
+}
+
+.purple {
+    color: #8b44ac;
+}
+
+.icon {
+    opacity: 0.05;
+    height: 35%;
+    width: 35%;
+    position: absolute;
+    background-repeat: no-repeat;
+    right: 0px;
+    bottom: 0px;
+    margin-right: 3%;
+    margin-bottom: 5%;
+    z-index: 5000;
+    background-position: right bottom;
+    pointer-events: none;
+}
+
+#avalonia-splash a {
+    color: whitesmoke;
+    text-decoration: none;
+}
+
+.center {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100vh;
+}
+
+#avalonia-splash {
+    position: relative;
+    height: 100%;
+    width: 100%;
+    color: whitesmoke;
+    background: #1b2a4e;
+    font-family: 'Nunito', sans-serif;
+    background-position: center;
+    background-size: cover;
+    background-repeat: no-repeat;
+    justify-content: center;
+    align-items: center;
+}
+
+.splash-close {
+    animation: fadeout 0.25s linear forwards;
+}
+
+@keyframes fadeout {
+    0% {
+        opacity: 100%;
+    }
+
+    100% {
+        opacity: 0;
+        visibility: collapse;
+    }
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Browser/AppBundle/index.html

@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title>PixiEditor.Avalonia.Browser</title>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <base href="/" />
+    <link rel="modulepreload" href="./main.js" />
+    <link rel="modulepreload" href="./dotnet.js" />
+    <link rel="modulepreload" href="./avalonia.js" />
+    <link rel="stylesheet" href="./app.css" />
+</head>
+
+<body style="margin: 0px; overflow: hidden">
+    <div id="out">
+        <div id="avalonia-splash">
+            <div class="center">
+                <h2 class="purple">
+                    Powered by
+                    <a class="highlight" href="https://www.avaloniaui.net/" target="_blank">Avalonia UI</a>
+                </h2>
+            </div>
+            <img class="icon" src="Logo.svg" alt="Avalonia Logo" />
+        </div>
+    </div>
+    <script type='module' src="./main.js"></script>
+</body>
+
+</html>

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Browser/AppBundle/main.js

@@ -0,0 +1,13 @@
+import { dotnet } from './dotnet.js'
+
+const is_browser = typeof window != "undefined";
+if (!is_browser) throw new Error(`Expected to be running in a browser`);
+
+const dotnetRuntime = await dotnet
+    .withDiagnosticTracing(false)
+    .withApplicationArgumentsFromQuery()
+    .create();
+
+const config = dotnetRuntime.getConfig();
+
+await dotnetRuntime.runMainAndExit(config.mainAssemblyName, [window.location.search]);

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Browser/PixiEditor.Avalonia.Browser.csproj

@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <TargetFramework>net7.0</TargetFramework>
+        <RuntimeIdentifier>browser-wasm</RuntimeIdentifier>
+        <WasmMainJSPath>AppBundle\main.js</WasmMainJSPath>
+        <OutputType>Exe</OutputType>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <WasmExtraFilesToDeploy Include="AppBundle\**"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Avalonia.Browser" Version="$(AvaloniaVersion)"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="..\PixiEditor.Avalonia\PixiEditor.Avalonia.csproj"/>
+    </ItemGroup>
+</Project>

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Browser/Program.cs

@@ -0,0 +1,19 @@
+using System.Runtime.Versioning;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Browser;
+using Avalonia.ReactiveUI;
+using PixiEditor.Avalonia;
+
+[assembly: SupportedOSPlatform("browser")]
+
+internal partial class Program
+{
+    private static async Task Main(string[] args) => await BuildAvaloniaApp()
+        .WithInterFont()
+        .UseReactiveUI()
+        .StartBrowserAppAsync("out");
+
+    public static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>();
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Browser/runtimeconfig.template.json

@@ -0,0 +1,11 @@
+{
+  "wasmHostProperties": {
+    "perHostConfig": [
+      {
+        "name": "browser",
+        "html-path": "index.html",
+        "Host": "browser"
+      }
+    ]
+  }
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Desktop/PixiEditor.Avalonia.Desktop.csproj

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <!--If you are willing to use Windows/MacOS native APIs you will need to create 3 projects.
+        One for Windows with net7.0-windows TFM, one for MacOS with net7.0-macos and one with net7.0 TFM for Linux.-->
+        <TargetFramework>net7.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+    </PropertyGroup>
+
+    <PropertyGroup>
+        <ApplicationManifest>app.manifest</ApplicationManifest>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Avalonia.Desktop" Version="$(AvaloniaVersion)"/>
+        <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+        <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="$(AvaloniaVersion)"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="..\PixiEditor.Avalonia\PixiEditor.Avalonia.csproj"/>
+    </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.2.0" />
+  </ItemGroup>
+</Project>

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Desktop/Program.cs

@@ -0,0 +1,23 @@
+using System;
+using Avalonia;
+using Avalonia.ReactiveUI;
+
+namespace PixiEditor.Avalonia.Desktop;
+
+class Program
+{
+    // Initialization code. Don't use any Avalonia, third-party APIs or any
+    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+    // yet and stuff might break.
+    [STAThread]
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .StartWithClassicDesktopLifetime(args);
+
+    // Avalonia configuration, don't remove; also used by visual designer.
+    public static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>()
+            .UsePlatformDetect()
+            .WithInterFont()
+            .LogToTrace()
+            .UseReactiveUI();
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia.Desktop/app.manifest

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embeded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="PixiEditor.Avalonia.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>

src/PixiEditor.Avalonia/PixiEditor.Avalonia.sln

@@ -0,0 +1,54 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32811.315
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PixiEditor.Avalonia", "PixiEditor.Avalonia\PixiEditor.Avalonia.csproj", "{EBFA8512-1EA5-4D8C-B4AC-AB5B48A6D568}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PixiEditor.Avalonia.Desktop", "PixiEditor.Avalonia.Desktop\PixiEditor.Avalonia.Desktop.csproj", "{ABC31E74-02FF-46EB-B3B2-4E6AE43B456C}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PixiEditor.Avalonia.Browser", "PixiEditor.Avalonia.Browser\PixiEditor.Avalonia.Browser.csproj", "{1C1A049E-235C-4CD0-B6FA-D53AC418F4DA}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PixiEditor.Avalonia.iOS", "PixiEditor.Avalonia.iOS\PixiEditor.Avalonia.iOS.csproj", "{EBD9022F-BC83-4846-9A11-6F7F3772DC64}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PixiEditor.Avalonia.Android", "PixiEditor.Avalonia.Android\PixiEditor.Avalonia.Android.csproj", "{7AD1DAC8-7FBE-49D5-8614-7321233DB82E}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{3DA99C4E-89E3-4049-9C22-0A7EC60D83D8}"
+	ProjectSection(SolutionItems) = preProject
+		Directory.Build.props = Directory.Build.props
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{EBFA8512-1EA5-4D8C-B4AC-AB5B48A6D568}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EBFA8512-1EA5-4D8C-B4AC-AB5B48A6D568}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EBFA8512-1EA5-4D8C-B4AC-AB5B48A6D568}.Release|Any CPU.ActiveCfg = Release|Any CPU
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+		{EBD9022F-BC83-4846-9A11-6F7F3772DC64}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EBD9022F-BC83-4846-9A11-6F7F3772DC64}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EBD9022F-BC83-4846-9A11-6F7F3772DC64}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7AD1DAC8-7FBE-49D5-8614-7321233DB82E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7AD1DAC8-7FBE-49D5-8614-7321233DB82E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7AD1DAC8-7FBE-49D5-8614-7321233DB82E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7AD1DAC8-7FBE-49D5-8614-7321233DB82E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {83CB65B8-011F-4ED7-BCD3-A6CFA935EF7E}
+	EndGlobalSection
+EndGlobal

src/PixiEditor.Avalonia/PixiEditor.Avalonia/App.axaml

@@ -0,0 +1,11 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:themes="clr-namespace:PixiEditor.UI.Common.Themes;assembly=PixiEditor.UI.Common"
+             x:Class="PixiEditor.Avalonia.App"
+             RequestedThemeVariant="Default">
+             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
+
+    <Application.Styles>
+        <themes:PixiEditorTheme />
+    </Application.Styles>
+</Application>

src/PixiEditor.Avalonia/PixiEditor.Avalonia/App.axaml.cs

@@ -0,0 +1,29 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+using PixiEditor.Avalonia.ViewModels;
+using PixiEditor.Avalonia.Views;
+
+namespace PixiEditor.Avalonia;
+
+public partial class App : Application
+{
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            desktop.MainWindow = new MainWindow { DataContext = new MainViewModel() };
+        }
+        else if (ApplicationLifetime is ISingleViewApplicationLifetime singleViewPlatform)
+        {
+            singleViewPlatform.MainView = new MainView { DataContext = new MainViewModel() };
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia/PixiEditor.Avalonia.csproj

@@ -0,0 +1,41 @@
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <TargetFramework>net7.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <LangVersion>latest</LangVersion>
+        <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+    </PropertyGroup>
+
+
+    <ItemGroup>
+        <AvaloniaResource Include="Assets\**" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
+        <PackageReference Include="Avalonia.Themes.Fluent" Version="$(AvaloniaVersion)" />
+        <PackageReference Include="Avalonia.Fonts.Inter" Version="$(AvaloniaVersion)" />
+        <PackageReference Include="Avalonia.ReactiveUI" Version="$(AvaloniaVersion)" />
+        <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+        <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="$(AvaloniaVersion)" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\..\ChunkyImageLib\ChunkyImageLib.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.ChangeableDocument.Gen\PixiEditor.ChangeableDocument.Gen.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.ChangeableDocument\PixiEditor.ChangeableDocument.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.DrawingApi.Core\PixiEditor.DrawingApi.Core.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.DrawingApi.Skia\PixiEditor.DrawingApi.Skia.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.Platform.MSStore\PixiEditor.Platform.MSStore.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.Platform.Standalone\PixiEditor.Platform.Standalone.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.Platform.Steam\PixiEditor.Platform.Steam.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.Platform\PixiEditor.Platform.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.UI.Common\PixiEditor.UI.Common.csproj" />
+      <ProjectReference Include="..\..\PixiEditor.UpdateModule\PixiEditor.UpdateModule.csproj" />
+      <ProjectReference Include="..\..\PixiEditorGen\PixiEditorGen.csproj" />
+    </ItemGroup>
+  
+    <ItemGroup>
+      <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.2.0" />
+    </ItemGroup>
+</Project>

src/PixiEditor.Avalonia/PixiEditor.Avalonia/ViewModels/MainViewModel.cs

@@ -0,0 +1,6 @@
+namespace PixiEditor.Avalonia.ViewModels;
+
+public class MainViewModel : ViewModelBase
+{
+    public string Greeting => "Welcome to Avalonia!";
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia/ViewModels/ViewModelBase.cs

@@ -0,0 +1,7 @@
+using ReactiveUI;
+
+namespace PixiEditor.Avalonia.ViewModels;
+
+public class ViewModelBase : ReactiveObject
+{
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia/Views/MainView.axaml

@@ -0,0 +1,16 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:vm="clr-namespace:PixiEditor.Avalonia.ViewModels"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="PixiEditor.Avalonia.Views.MainView"
+             x:DataType="vm:MainViewModel">
+  <Design.DataContext>
+    <!-- This only sets the DataContext for the previewer in an IDE,
+         to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs) -->
+    <vm:MainViewModel />
+  </Design.DataContext>
+
+  <TextBlock Text="{Binding Greeting}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+</UserControl>

src/PixiEditor.Avalonia/PixiEditor.Avalonia/Views/MainView.axaml.cs

@@ -0,0 +1,11 @@
+using Avalonia.Controls;
+
+namespace PixiEditor.Avalonia.Views;
+
+public partial class MainView : UserControl
+{
+    public MainView()
+    {
+        InitializeComponent();
+    }
+}

src/PixiEditor.Avalonia/PixiEditor.Avalonia/Views/MainWindow.axaml

@@ -0,0 +1,16 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:PixiEditor.Avalonia.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:views="clr-namespace:PixiEditor.Avalonia.Views"
+        Height="1000"
+        Width="1600"
+        mc:Ignorable="d" d:DesignWidth="1600" d:DesignHeight="1000"
+        x:Class="PixiEditor.Avalonia.Views.MainWindow"
+        WindowStartupLocation="CenterScreen"
+        WindowState="Maximized"
+        Icon="/Assets/avalonia-logo.ico"
+        Title="PixiEditor">
+        <views:MainView />
+</Window>

src/PixiEditor.Avalonia/PixiEditor.Avalonia/Views/MainWindow.axaml.cs

@@ -0,0 +1,11 @@
+using Avalonia.Controls;
+
+namespace PixiEditor.Avalonia.Views;
+
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+    }
+}

src/PixiEditor.sln

@@ -66,6 +66,12 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PixiEditor.UpdateInstaller.
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PixiEditor.UI.Common", "PixiEditor.UI.Common\PixiEditor.UI.Common.csproj", "{FA98BFA6-2E83-41C6-9102-76875B261F51}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PixiEditor.Avalonia", "PixiEditor.Avalonia\PixiEditor.Avalonia\PixiEditor.Avalonia.csproj", "{27B4583C-539B-4D75-AF2C-71CAB1B4A153}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PixiEditor.Avalonia.Desktop", "PixiEditor.Avalonia\PixiEditor.Avalonia.Desktop\PixiEditor.Avalonia.Desktop.csproj", "{20406C86-4833-4E8B-8880-8674984AC03C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PixiEditor.Avalonia.Browser", "PixiEditor.Avalonia\PixiEditor.Avalonia.Browser\PixiEditor.Avalonia.Browser.csproj", "{6B71BBFF-27D2-4A65-9357-1376356B5ECC}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -934,6 +940,114 @@ Global
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 		{FA98BFA6-2E83-41C6-9102-76875B261F51}.Steam|x86.Build.0 = Debug|Any CPU
+		{27B4583C-539B-4D75-AF2C-71CAB1B4A153}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{27B4583C-539B-4D75-AF2C-71CAB1B4A153}.Debug|Any CPU.Build.0 = Debug|Any CPU
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+		{27B4583C-539B-4D75-AF2C-71CAB1B4A153}.Debug|x64.Build.0 = Debug|Any CPU
+		{27B4583C-539B-4D75-AF2C-71CAB1B4A153}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{27B4583C-539B-4D75-AF2C-71CAB1B4A153}.Debug|x86.Build.0 = Debug|Any CPU
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+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.MSIX|x64.Build.0 = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.MSIX|x86.ActiveCfg = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.MSIX|x86.Build.0 = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Release|x64.ActiveCfg = Release|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Release|x64.Build.0 = Release|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Release|x86.ActiveCfg = Release|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Release|x86.Build.0 = Release|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Steam|Any CPU.ActiveCfg = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Steam|Any CPU.Build.0 = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Steam|x64.ActiveCfg = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Steam|x64.Build.0 = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Steam|x86.ActiveCfg = Debug|Any CPU
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC}.Steam|x86.Build.0 = Debug|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -965,5 +1079,8 @@ Global
 		{CE1C8DC9-E26B-4BBB-AB87-34054DE34814} = {E4FF4CE6-5831-450D-8006-0539353C030B}
 		{10BF4001-214C-4869-8F78-2B6BDBDC7E7D} = {68C3DA2D-D2EA-426E-A866-0019E425C816}
 		{FA98BFA6-2E83-41C6-9102-76875B261F51} = {1E816135-76C1-4255-BE3C-BF17895A65AA}
+		{27B4583C-539B-4D75-AF2C-71CAB1B4A153} = {1E816135-76C1-4255-BE3C-BF17895A65AA}
+		{20406C86-4833-4E8B-8880-8674984AC03C} = {1E816135-76C1-4255-BE3C-BF17895A65AA}
+		{6B71BBFF-27D2-4A65-9357-1376356B5ECC} = {1E816135-76C1-4255-BE3C-BF17895A65AA}
 	EndGlobalSection
 EndGlobal

src/SampleExtension/SampleExtension.cs

@@ -1,7 +1,4 @@
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Media;
-using PixiEditor.Extensions;
+using PixiEditor.Extensions;
 
 namespace SampleExtension;
 
@@ -13,12 +10,12 @@ public class SampleExtension : Extension
 
     protected override void OnInitialized()
     {
-        var popup = Api.WindowProvider.CreatePopupWindow("Hello World!", new TextBlock
+        /*var popup = Api.WindowProvider.CreatePopupWindow("Hello World!", new TextBlock
         {
             Text = "Hello World!", Foreground = Brushes.White,
             HorizontalAlignment = HorizontalAlignment.Center, VerticalAlignment = VerticalAlignment.Center
         });
         Api.PaletteProvider.RegisterDataSource(new TestPaletteDataSource());
-        popup.ShowDialog();
+        popup.ShowDialog();*/
     }
 }