fix race condition in clearing

AvalonLog.fsproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFrameworks>net472;net50-windows</TargetFrameworks>
+    <TargetFrameworks>net472;net6.0-windows</TargetFrameworks>
     <UseWPF>true</UseWPF>
     <LangVersion>preview</LangVersion>
 
@@ -17,12 +17,13 @@
     <Product>AvalonLog</Product>
     <PackageId>AvalonLog</PackageId>
 
-    <Version>0.4.0</Version>
-    <AssemblyVersion>0.4.0</AssemblyVersion>
-    <FileVersion>0.4.0</FileVersion>
+    <Version>0.5.0</Version>
+    <AssemblyVersion>0.5.0</AssemblyVersion>
+    <FileVersion>0.5.0</FileVersion>
     <PackageReleaseNotes>
-      - Update to AvalonEditB 1.2.0
-      - Rename GetTextWriterIf to GetConditionalTextWriter
+      - Update to AvalonEditB 1.3.0
+      - target net6.0 and net472
+      - fix typos in docstring
     </PackageReleaseNotes>
 
     <Authors>GoswinR</Authors>
@@ -52,10 +53,10 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AvalonEditB" Version="1.2.0" />
+    <PackageReference Include="AvalonEditB" Version="1.3.0" />
     <!-- <Reference Include="AvalonEditB" HintPath="../AvalonEditB/AvalonEditB/bin/Release/net472/AvalonEditB.dll" /> -->
 
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" IncludeAssets="runtime; build; native; contentfiles; analyzers; buildtransitive" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" IncludeAssets="runtime; build; native; contentfiles; analyzers; buildtransitive" />
     <!-- https://docs.microsoft.com/en-us/nuget/consume-packages/package-references-in-project-files#controlling-dependency-assets -->
   </ItemGroup>
 

Doc/READMEnuget.md

@@ -5,7 +5,7 @@
 
 ![logo](https://raw.githubusercontent.com/goswinr/AvalonLog/main/Doc/logo400.png)
 
-Avalonlog is a fast and thread-save WPF text log viewer for colored text. Including F# printf formating . Based on [AvalonEditB](https://github.com/goswinr/AvalonEditB). Works on .NET Framework 4.7.2 and .NET 5.0
+AvalonLog is a fast and thread-save WPF text log viewer for colored text. Including F# printf formatting . Based on [AvalonEditB](https://github.com/goswinr/AvalonEditB). Works on .NET Framework 4.7.2 and .NET 5.0
 
 ### Usage
 
@@ -28,7 +28,7 @@ let red   = log.printfColor 255 0 0  // without newline
 let blue  = log.printfnColor 0 0 255 // with newline
 let green = log.printfnColor 0 155 0 // with newline
 
-// print to log using F# printf formating
+// print to log using F# printf formatting
 red   "Hello, "
 blue  "World!"
 red   "The answer"
@@ -48,19 +48,23 @@ public void AppendWithBrush(SolidColorBrush br, string s)
 and similar functions on the `AvalonLog` instance.
 ### Documentation
 
-See extracted API at [fuget.org](https://www.fuget.org/packages/AvalonLog/0.4.0/lib/net472/AvalonLog.dll/AvalonLog)  
+See extracted API at [fuget.org](https://www.fuget.org/packages/AvalonLog/0.5.0/lib/net472/AvalonLog.dll/AvalonLog)  
 
-### Licence
+### License
 
 MIT
 
 Logo by [LovePik](https://lovepik.com/image-401268798/crystal-parrot-side-cartoon.html)
 
 ### Changelog
-
- `0.3.1` 
-- Update Xml Docstrings
+`0.5.0`
+- Update to AvalonEditB `1.3.0`
+- target net6.0 and net472
+- fix typos in docstring
 
 `0.4.0`
 - Update to AvalonEditB `1.2.0` 
-- Rename `GetTextWriterIf` to `GetConditionalTextWriter`
+- Rename `GetTextWriterIf` to `GetConditionalTextWriter`
+
+ `0.3.1` 
+- Update Xml Docstrings

README.md

@@ -8,7 +8,7 @@
 
 ![logo](https://raw.githubusercontent.com/goswinr/AvalonLog/main/Doc/logo400.png)
 
-Avalonlog is a fast and threadsave WPF text log viewer for colored text. Including F# printf formating . Based on [AvalonEditB](https://github.com/goswinr/AvalonEditB). Works on .NET Framework 4.7.2 and .NET 5.0
+AvalonLog is a fast and thread-save WPF text log viewer for colored text. Including F# printf formatting . Based on [AvalonEditB](https://github.com/goswinr/AvalonEditB). Works on .NET Framework 4.7.2 and .NET 5.0
 
 ### Usage
 
@@ -31,7 +31,7 @@ let red   = log.printfColor 255 0 0  // without newline
 let blue  = log.printfnColor 0 0 255 // with newline
 let green = log.printfnColor 0 155 0 // with newline
 
-// print to log using F# printf formating
+// print to log using F# printf formatting
 red   "Hello, "
 blue  "World!"
 red   "The answer"
@@ -51,7 +51,7 @@ public void AppendWithBrush(SolidColorBrush br, string s)
 and similar functions on the `AvalonLog` instance.
 ### Documentation
 
-See extracted API at [fuget.org](https://www.fuget.org/packages/AvalonLog/0.4.0/lib/net472/AvalonLog.dll/AvalonLog) 
+See extracted API at [fuget.org](https://www.fuget.org/packages/AvalonLog/0.5.0/lib/net472/AvalonLog.dll/AvalonLog) 
 
 ### Download
 
@@ -61,7 +61,7 @@ AvalonLog is available as [NuGet package](https://www.nuget.org/packages/AvalonL
 
 Just run `dotnet build` 
 
-### Licence
+### License
 
 MIT
 

Src/AvalonLog.fs

@@ -1,4 +1,4 @@
-namespace AvalonLog
+namespace AvalonLog
 
 open AvalonLog.Util
 open AvalonLog.Brush
@@ -307,16 +307,16 @@ type AvalonLog () =
             docLength <- 0
             prevMsgBrush <- null
             stillLessThanMaxChars <- true
-            printCallsCounter := 0L
-            offsetColors.Clear()
-            offsetColors.Add {off = -1 ; brush=null} //TODO use -1 instead? // null check done in  this.ColorizeLine(line:AvalonEdit.Document.DocumentLine) ..
+            printCallsCounter := 0L            
             )
 
         // log.Dispatcher.Invoke needed.
         // If this would be done via async{ and do! Async.SwitchToContext a subsequent call via Dispatcher.Invoke ( like print to log) would still come before.
         // It starts faster than async with SwitchToContext
         log.Dispatcher.Invoke( fun () ->
             log.Clear()
+            offsetColors.Clear() // this should be done after log.clear() to avoid race condition where log tries to redraw but offsetColors is already empty
+            offsetColors.Add {off = -1 ; brush=null}  // null check done in  this.ColorizeLine(line:AvalonEdit.Document.DocumentLine) ..
             //log.SelectionLength <- 0
             //log.SelectionStart <- 0
             defaultBrush <- (log.Foreground.Clone() :?> SolidColorBrush |> Brush.freeze)   // TODO or remember custom brush ?

Src/TextColor.fs

@@ -1,4 +1,4 @@
-namespace AvalonLog
+namespace AvalonLog
 
 open AvalonLog.Util
 open System