Load Preview Async

rowsSharp.sln

@@ -10,7 +10,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.editorconfig = .editorconfig
 	EndProjectSection
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "UnitTest", "UnitTest\UnitTest.csproj", "{1D74A3BB-1E05-4B88-977D-C1467005C93B}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "UnitTest", "UnitTest\UnitTest.csproj", "{A9C64AA4-5D42-4392-BC06-F859C27384B6}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -22,10 +22,10 @@ Global
 		{F3FAEAFF-697C-4076-ACF7-A82E3AB42826}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{F3FAEAFF-697C-4076-ACF7-A82E3AB42826}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{F3FAEAFF-697C-4076-ACF7-A82E3AB42826}.Release|Any CPU.Build.0 = Release|Any CPU
-		{1D74A3BB-1E05-4B88-977D-C1467005C93B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{1D74A3BB-1E05-4B88-977D-C1467005C93B}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{1D74A3BB-1E05-4B88-977D-C1467005C93B}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{1D74A3BB-1E05-4B88-977D-C1467005C93B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A9C64AA4-5D42-4392-BC06-F859C27384B6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A9C64AA4-5D42-4392-BC06-F859C27384B6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A9C64AA4-5D42-4392-BC06-F859C27384B6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A9C64AA4-5D42-4392-BC06-F859C27384B6}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

rowsSharp/Domain/Clipboard.cs

@@ -1,17 +1,14 @@
-using System;
+using System;
 using System.Windows;
 using System.Windows.Media.Imaging;
 
 namespace RowsSharp.Domain;
 
 public static class ClipboardHelper
 {
-    public static void SetClipboardImage(string path)
+    public static void SetImage(BitmapImage bitmapImage)
     {
-        Uri uri = new(path);
-        BitmapImage image = new(uri);
-
-        Clipboard.SetImage(image);
+        Clipboard.SetImage(bitmapImage);
     }
 
     public static string[,] SplitTo2DArray()

rowsSharp/Domain/PreviewHelper.cs

@@ -0,0 +1,20 @@
+using System.IO;
+using System.Windows.Media.Imaging;
+
+namespace RowsSharp.Domain;
+
+internal class PreviewHelper
+{
+    internal static BitmapImage? FromPath(string path)
+    {
+        if (!File.Exists(path)) { return null; }
+
+        BitmapImage image = new();
+        image.BeginInit();
+        image.CacheOption = BitmapCacheOption.OnLoad;
+        image.UriSource = new(path);
+        image.EndInit();
+        image.Freeze();
+        return image;
+    }
+}

rowsSharp/View/Editor.xaml

@@ -340,7 +340,7 @@
 
             <GridSplitter Grid.Column="1" Width="16" Background="Transparent" HorizontalAlignment="Left"/>
 
-            <Image Name="PreviewImage" Grid.Column="1" Source="{Binding Preview, Converter={StaticResource PathToImageConverter}, Mode=OneWay}"/>
+            <Image Name="PreviewImage" Grid.Column="1" Source="{Binding Preview, Mode=OneWay}"/>
 
             <TextBlock Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center"
                        Text="No Preview Available">

rowsSharp/ViewModel/EditorViewModel.cs

@@ -1,4 +1,4 @@
-using ObservableTable.Core;
+using ObservableTable.Core;
 using RowsSharp.Domain;
 using RowsSharp.Model;
 using RowsSharp.View;
@@ -7,11 +7,11 @@
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
 using System.ComponentModel;
-using System.IO;
 using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Data;
+using System.Windows.Media.Imaging;
 
 namespace RowsSharp.ViewModel;
 
@@ -73,10 +73,24 @@ public IEnumerable<DataGridColumn> DataGridColumns
         }
     }
 
-    public string Preview =>
-        selectedCells.Any()
-            ? ColumnNotation.Expand(Preferences.Preview.Path, Table.Headers, (IEnumerable<string?>)selectedCells[0].Item)
-            : "";
+    private void UpdatePreview()
+    {
+        if (!selectedCells.Any())
+        {
+            Preview = null;
+            return;
+        }
+
+        string path = ColumnNotation.Expand(Preferences.Preview.Path, Table.Headers, (IEnumerable<string?>)selectedCells[0].Item);
+        Preview = PreviewHelper.FromPath(path);
+    }
+
+    private BitmapImage? preview;
+    public BitmapImage? Preview
+    {
+        get => preview;
+        internal set => SetField(ref preview, value);
+    }
 
     private IList<DataGridCellInfo> selectedCells = new List<DataGridCellInfo>();
 
@@ -156,7 +170,7 @@ private void Autosave()
             selectedCells = e;
             OnPropertyChanged(nameof(SelectedRowsCount));
             OnPropertyChanged(nameof(SelectedColumnsCount));
-            OnPropertyChanged(nameof(Preview));
+            UpdatePreview();
         }
     );
 
@@ -178,8 +192,8 @@ private void Autosave()
     );
 
     public DelegateCommand CopyPreview => new(
-        () => ClipboardHelper.SetClipboardImage(Preview),
-        () => File.Exists(Preview)
+        () => ClipboardHelper.SetImage(Preview!),
+        () => Preview is not null
     );
 
     public DelegateCommand SortColumn => new(

rowsSharp/rowsSharp.csproj

@@ -64,12 +64,7 @@
       <TreatAsUsed>true</TreatAsUsed>
     </PackageReference>
     <PackageReference Include="NLog" Version="5.1.4" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Reference Include="ObservableTable">
-      <HintPath>..\..\ObservableTable\Publish\ObservableTable.dll</HintPath>
-    </Reference>
+    <PackageReference Include="ObservableTable" Version="23.12.0" />
   </ItemGroup>
 
   <ItemGroup>