v2.7.2v2.7.2

* **Core:**
   * Fix some improper locks for progress counter and change to Interlocked instead
   * Fix a bug when chaging layer count by remove or add layers it will malform the file after save and crash the program with some tools and/or clipboard
   * Fix when a operation fails by other reason different from cancelation it was not restoring the backup
   * When manually delete/fix issues it will also backup the layers
* **LayerManager:**
   * LayerManager is now readonly and no longer used to transpose layers, each FileFormat have now a unique `LayerManager` instance which is set on the generic constructor
   * Implemented `List<Layer>` methods to easy modify the layers array
   * Changing the `Layers` instance will now recompute some properties, call the properties rebuild and forced sanitize of the structure
   * Better reallocation methods
* **Clipboard Manager:**
   * Add the hability to do full backups, they will be marked with an asterisk (*) at clipboard items list
   * When a partial backup is made and it backups all the layers it will be converted to full backup
   * Clipboard can now restore a snapshot directly with `RestoreSnapshot`
   * Prevent restore the initial backup upon file load and when clearing the clipboard
   * Clip's that change the layer count will perform a full backup and also do a fail-safe backup behind if previous clip is not a full backup
* **Pixel dimming:**
   * Allow to load an image file as a pattern (Do not use very large files or it will take much time to dump the data into the textbox)
   * Empty lines on patterns will be discarded and not trigger validation error

6 files changed, 67 insertions, 22 deletions

diff --git a/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml b/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml
index 8ec27a5..6128e4f 100644
--- a/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml
+++ b/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml
@@ -68,28 +68,43 @@
       </StackPanel>
     
     <Grid 
-      RowDefinitions="200,10,Auto"
-        ColumnDefinitions="450,10,450"
-        >
+      RowDefinitions="Auto,200,10,Auto"
+        ColumnDefinitions="450,10,450">
+
+        <Button  Grid.Row="0" Grid.Column="0"
+                 Content="Load pattern from image"
+                 HorizontalContentAlignment="Center"
+                 VerticalAlignment="Stretch"
+                 HorizontalAlignment="Stretch"
+                 Command="{Binding LoadPatternFromImage}"
+                 CommandParameter="False"/>
+
         <TextBox
+          Grid.Row="1" Grid.Column="0"
           AcceptsReturn="True"
           Watermark="Pattern"
           UseFloatingWatermark="True"
            TextWrapping="NoWrap"
-          Text="{Binding Operation.PatternText}"
-          />
+          Text="{Binding Operation.PatternText}"/>
+
+        <Button  Grid.Row="0" Grid.Column="2"
+                 Content="Load alternate pattern from image"
+                 HorizontalContentAlignment="Center"
+                 VerticalAlignment="Stretch"
+                 HorizontalAlignment="Stretch"
+                 Command="{Binding LoadPatternFromImage}"
+                 CommandParameter="True"/>
       <TextBox
-        Grid.Column="2"
+          Grid.Row="1" Grid.Column="2"
           AcceptsReturn="True"
           Watermark="Alternate pattern (Optional)"
           UseFloatingWatermark="True"
            TextWrapping="NoWrap"
-        Text="{Binding Operation.AlternatePatternText}"
-          />
+        Text="{Binding Operation.AlternatePatternText}"/>
 
       <Border
-        Grid.Row="3"
-      BorderBrush="LightGray"
+        Grid.Row="3" Grid.Column="0"
+        BorderBrush="LightGray"
       BorderThickness="1"
       Padding="5"
       >
@@ -195,7 +210,7 @@
       </Border>
 
       <Border
-        Grid.Row="2"
+        Grid.Row="3"
         Grid.Column="2"
       BorderBrush="LightGray"
       BorderThickness="1"
diff --git a/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml.cs b/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml.cs
index 4d09bb6..2d32651 100644
--- a/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml.cs
+++ b/UVtools.WPF/Controls/Tools/ToolPixelDimmingControl.axaml.cs
@@ -1,4 +1,5 @@
 using System;
+using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
 using Emgu.CV;
 using UVtools.Core.Extensions;
@@ -23,7 +24,17 @@ namespace UVtools.WPF.Controls.Tools
         {
             AvaloniaXamlLoader.Load(this);
         }
-      
 
+        public async void LoadPatternFromImage(bool isAlternatePattern = false)
+        {
+            var dialog = new OpenFileDialog
+            {
+                AllowMultiple = false,
+                Filters = Helpers.ImagesFileFilter,
+            };
+            var files = await dialog.ShowAsync(ParentWindow);
+            if (files is null || files.Length == 0) return;
+            Operation.LoadPatternFromImage(files[0], isAlternatePattern);
+        }
     }
 }
diff --git a/UVtools.WPF/MainWindow.Issues.cs b/UVtools.WPF/MainWindow.Issues.cs
index 2971ea6..5e9c513 100644
--- a/UVtools.WPF/MainWindow.Issues.cs
+++ b/UVtools.WPF/MainWindow.Issues.cs
@@ -111,7 +111,9 @@ namespace UVtools.WPF
 
 
             IsGUIEnabled = false;
-            
+
+            Clipboard.Snapshot();
+
             var task = await Task.Factory.StartNew(() =>
             {
                 ShowProgressWindow("Removing selected issues");
@@ -160,7 +162,7 @@ namespace UVtools.WPF
                             }
                         }
 
-                        progress++;
+                        progress.LockAndIncrement();
                     });
 
                     if (layersRemove.Count > 0)
@@ -181,7 +183,11 @@ namespace UVtools.WPF
 
             IsGUIEnabled = true;
 
-            if (!task) return;
+            if (!task)
+            {
+                Clipboard.RestoreSnapshot();
+                return;
+            }
 
             var whiteListLayers = new List<uint>();
 
@@ -207,6 +213,8 @@ namespace UVtools.WPF
 
             }
 
+            Clipboard.Clip($"Manually removed {issueRemoveList.Count} issues");
+
             Issues.RemoveMany(issueRemoveList);
 
             if (layersRemove.Count > 0)
diff --git a/UVtools.WPF/MainWindow.PixelEditor.cs b/UVtools.WPF/MainWindow.PixelEditor.cs
index ea23b9a..e7984cd 100644
--- a/UVtools.WPF/MainWindow.PixelEditor.cs
+++ b/UVtools.WPF/MainWindow.PixelEditor.cs
@@ -387,6 +387,7 @@ namespace UVtools.WPF
                     try
                     {
                         SlicerFile.LayerManager.DrawModifications(Drawings, ProgressWindow.RestartProgress());
+                        return true;
                     }
                     catch (OperationCanceledException)
                     {
@@ -405,11 +406,18 @@ namespace UVtools.WPF
 
                 IsGUIEnabled = true;
 
+                if (!task.Result)
+                {
+                    Clipboard.RestoreSnapshot();
+                    ShowLayer();
+                    return;
+                }
+
                 Clipboard.Clip($"Draw {Drawings.Count} modifications");
 
                 if (Settings.PixelEditor.PartialUpdateIslandsOnEditing)
                 {
-                    List<uint> whiteListLayers = new List<uint>();
+                    List<uint> whiteListLayers = new();
                     foreach (var item in Drawings)
                     {
                         /*if (item.OperationType != PixelOperation.PixelOperationType.Drawing &&
diff --git a/UVtools.WPF/MainWindow.axaml.cs b/UVtools.WPF/MainWindow.axaml.cs
index bc680e6..6512bea 100644
--- a/UVtools.WPF/MainWindow.axaml.cs
+++ b/UVtools.WPF/MainWindow.axaml.cs
@@ -1060,7 +1060,7 @@ namespace UVtools.WPF
                 }
             }
 
-            ClipboardManager.Instance.Init(SlicerFile);
+            Clipboard.Init(SlicerFile);
 
             if (SlicerFile is not ImageFile)
             {
@@ -1466,11 +1466,11 @@ namespace UVtools.WPF
 
             IsGUIEnabled = false;
 
-            LayerManager backup = null;
+            Clipboard.Snapshot();
+
             var result = await Task.Factory.StartNew(() =>
             {
                 ShowProgressWindow(baseOperation.ProgressTitle);
-                backup = SlicerFile.LayerManager.Clone();
 
                 try
                 {
@@ -1478,7 +1478,6 @@ namespace UVtools.WPF
                 }
                 catch (OperationCanceledException)
                 {
-                    SlicerFile.LayerManager = backup;
                 }
                 catch (Exception ex)
                 {
@@ -1494,7 +1493,7 @@ namespace UVtools.WPF
 
             if (result)
             {
-                ClipboardManager.Instance.Clip(baseOperation, backup);
+                Clipboard.Clip(baseOperation);
 
                 ShowLayer();
                 RefreshProperties();
@@ -1510,6 +1509,10 @@ namespace UVtools.WPF
                         break;
                 }
             }
+            else
+            {
+                Clipboard.RestoreSnapshot();
+            }
 
             if (baseOperation.Tag is not null)
             {
diff --git a/UVtools.WPF/UVtools.WPF.csproj b/UVtools.WPF/UVtools.WPF.csproj
index f6ff058..bd98a45 100644
--- a/UVtools.WPF/UVtools.WPF.csproj
+++ b/UVtools.WPF/UVtools.WPF.csproj
@@ -12,7 +12,7 @@
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <RepositoryUrl>https://github.com/sn4k3/UVtools</RepositoryUrl>
     <RepositoryType>Git</RepositoryType>
-    <Version>2.7.1</Version>
+    <Version>2.7.2</Version>
   </PropertyGroup>
   
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">