Feature: Shrinker.Avalonia - Processed output can now be copied to the input pane.

Author: deanthecoder

ShaderShrinker/Shrinker.Avalonia/ViewModels/MainWindowViewModel.cs

@@ -25,6 +25,7 @@ public class MainWindowViewModel : ReactiveObject, IDisposable
     private ICommand m_importGlslClipboardCommand;
     private ICommand m_importGlslFileCommand;
     private CommandBase m_importGlslShadertoyCommand;
+    private CommandBase m_copyLeftCommand;
     private string m_shadertoyId;
     private CommandBase m_shrinkCommand;
     private CommandBase m_exportGlslClipboardCommand;
@@ -96,6 +97,8 @@ public ICommand ExportGlslFileCommand
         }
     }
 
+    public ICommand CopyLeftCommand => m_copyLeftCommand ??= new RelayCommand(_ => ImportGlslFromRhs(), () => Diffs.HasRightContent());
+
     public string ShadertoyId
     {
         get => m_shadertoyId ??= UserSettings.Instance.ShadertoyId;
@@ -130,9 +133,10 @@ public MainWindowViewModel()
 
         Diffs.CollectionChanged += (_, _) =>
         {
-            m_shrinkCommand.RaiseCanExecuteChanged();
-            m_exportGlslClipboardCommand.RaiseCanExecuteChanged();
-            m_exportGlslFileCommand.RaiseCanExecuteChanged();
+            m_shrinkCommand?.RaiseCanExecuteChanged();
+            m_exportGlslClipboardCommand?.RaiseCanExecuteChanged();
+            m_exportGlslFileCommand?.RaiseCanExecuteChanged();
+            m_copyLeftCommand?.RaiseCanExecuteChanged();
         };
         Hints.CollectionChanged += (_, _) =>
         {
@@ -155,6 +159,12 @@ private void ImportGlslFromFile(FileInfo file)
             ImportGlslFromString(File.ReadAllText(file.FullName));
     }
 
+    private void ImportGlslFromRhs()
+    {
+        var glsl = Diffs.GetAllRightText().WithAppMessage();
+        ImportGlslFromString(glsl);
+    }
+
     private async void ImportGlslFromShadertoy(object o)
     {
         try

ShaderShrinker/Shrinker.Avalonia/Views/MainWindow.axaml

@@ -152,6 +152,13 @@
 
                         <TextBlock Grid.Column="0" Grid.Row="0" Classes="Title" Text="Original" Margin="0,0,1,4"/>
                         <TextBlock Grid.Column="1" Grid.Row="0" Classes="Title" Text="Output" Margin="1,0,0,4" />
+                        <Button Grid.Column="1" Grid.Row="0"
+                                HorizontalAlignment="Left" VerticalAlignment="Center"
+                                Padding="0" Margin="4,0,4,2"
+                                ToolTip.Tip="Copy to Left Pane"
+                                Command="{Binding CopyLeftCommand}">
+                            <Avalonia:MaterialIcon Kind="ChevronDoubleLeft" Width="16" Height="16"/>
+                        </Button>
 
                         <ScrollViewer Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="1"
                                       VerticalScrollBarVisibility="Visible">
@@ -163,7 +170,7 @@
                                                 <TextBlock Classes="LineNumber"
                                                            Text="{Binding LeftLineNumber}"/>
                                                 <Views:CodeLineControl Grid.Column="1"
-                                                                       Diff="{Binding LeftDiff}" />
+                                                                       Diff="{Binding LeftDiff}"/>
                                             </Grid>
                                             <Border Grid.Column="1" Background="#30000000"></Border>
                                             <Grid Grid.Column="2" ColumnDefinitions="30,*">
@@ -239,7 +246,7 @@
                                 Margin="8,0"
                                 VerticalAlignment="Center"
                                 Command="{Binding ShrinkCommand}"
-                                Content="Run"/>
+                                Content="Apply"/>
                     </StackPanel>
 
                     <TextBlock Grid.Column="2"