添加Avalonia项目的demo

Serein.Workbench.Avalonia/Views/MainView.axaml

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+<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:Serein.Workbench.Avalonia.ViewModels"
+             xmlns:cv="clr-namespace:Serein.Workbench.Avalonia.Custom.Views"
+             mc:Ignorable="d" d:DesignWidth="1024" d:DesignHeight="640"
+             x:Class="Serein.Workbench.Avalonia.Views.MainView"
+             x:DataType="vm:MainViewModel">
+  <Design.DataContext>
+    <vm:MainViewModel />
+  </Design.DataContext>
+  <UserControl.Styles>
+  </UserControl.Styles>
+  <Grid RowDefinitions="auto,0,*" ColumnDefinitions="*">
+    <cv:MainMenuBarView Grid.Row="0" Grid.Column="0" Background="#E2E9EE"/>
+    <!--这里留空，以后放置功能区-->
+    <Grid Grid.Row="2" Grid.Column="0"
+          RowDefinitions="*" ColumnDefinitions="auto,*">
+      <!--依赖信息-->
+      <Grid RowDefinitions="*,auto" HorizontalAlignment="Left">
+        <!--已加载的依赖-->
+        <cv:FlowLibrarysView Grid.Row="0"/>
+        <!--<cv:FlowLibraryMethodInfoView Grid.Row="1"  HorizontalAlignment="Left"/>-->
+        <!--当前预览的节点方法信息-->
+      </Grid>
+      
+      <!--画布-->
+      <cv:NodeContainerView  Grid.Column="1"/>
+      <!--其他视图-->
+    
+    </Grid>
+  </Grid>
+</UserControl>

Serein.Workbench.Avalonia/Views/MainView.axaml.cs

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+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Input;
+using Avalonia.Markup.Xaml;
+using Newtonsoft.Json;
+using Serein.Library;
+using Serein.NodeFlow.Env;
+using System;
+using System.Diagnostics;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Serein.Workbench.Avalonia.Views;
+
+public partial class MainView : UserControl
+{
+    public MainView()
+    {
+        InitializeComponent();
+    }
+
+
+}

Serein.Workbench.Avalonia/Views/MainWindow.axaml

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+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:Serein.Workbench.Avalonia.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:views="clr-namespace:Serein.Workbench.Avalonia.Views"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="Serein.Workbench.Avalonia.Views.MainWindow"
+        Icon="/Assets/avalonia-logo.ico"
+        Title="Serein Flow Edit">
+        <views:MainView />
+ 
+
+</Window>

Serein.Workbench.Avalonia/Views/MainWindow.axaml.cs

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+using Avalonia.Controls;
+using Avalonia.Input;
+using System.Diagnostics;
+using System;
+using Avalonia.Markup.Xaml;
+using Newtonsoft.Json;
+using Serein.NodeFlow.Env;
+using System.Threading.Tasks;
+using Serein.Library;
+using Serein.Workbench.Avalonia.Services;
+
+namespace Serein.Workbench.Avalonia.Views;
+
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+        IKeyEventService keyEventService = App.GetService<IKeyEventService>();
+        this.Loaded += MainWindow_Loaded;
+        this.KeyDown += (o, e) =>
+        {
+            keyEventService.SetKeyState(e.Key, true);
+        };
+        this.KeyUp += (o, e) =>
+        {
+            keyEventService.SetKeyState(e.Key, false);
+        };
+    }
+
+    private void MainWindow_Loaded(object? sender, global::Avalonia.Interactivity.RoutedEventArgs e)
+    {
+        
+        
+    }
+}