AvalonLog

AvalonLog is a fast and thread-safe WPF text log viewer for colored text. Including F# printf formatting. Based on AvalonEditB. Works on .NET Framework 4.7.2 and .NET 7.0

Thread-safe means that it can be called from any thread.

Fast means

• it buffers repeated print calls and updates the view maximum 10 times per second. see
• Avalonedit is fast, the view is virtualized. It can easily handle thousands of lines.

Usage

Here an short example for F# interactive in .NET Framework. (for net7.0 you would have to use it in a project)

#r "PresentationCore"
#r "PresentationFramework"
#r "WindowsBase"

#r "nuget: AvalonLog"

open System.Windows

let log = new AvalonLog.AvalonLog() // The main class wrapping an Avalonedit TextEditor as append only log.

// create some printing functions by partial application:
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 formatting
red   "Hello, "
blue  "World!"
red   "The answer"
green " is %d." (40 + 2)

Application().Run(Window(Content=log))  // show WPF window 

this will produce

For C# there is

public void AppendWithBrush(SolidColorBrush br, string s)

and similar functions on the AvalonLog instance.

Documentation

See extracted API at fuget.org

Download

AvalonLog is available as NuGet package.

How to build

Just run dotnet build

License

MIT

Logo by LovePik

Changelog

0.12.0

• AvalonEditB 2.2.0

0.11.0

• disable replace in Log
• AvalonEditB 2.1.0

0.10.0

• AvalonEditB 2.0.0

0.9.1

• AvalonEditB 1.8.0

0.9.0

• AvalonEditB 1.7.0

0.8.3

• AvalonEditB 1.6.0

0.8.2

• net7.0
• AvalonEditB 1.5.1
• update readme, fix typos

0.7.2

• fix typos in readme

0.7.1

• use AvalonEditB 1.4.1
• fix typos in doc-strings

0.7.0

• fix crash when Log has more than 1000k characters

0.6.0

• fix ConditionalTextWriter

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

0.3.1

• Update Xml doc-strings