[Haskell-cafe] ANNOUNCE: vty-ui 0.3

[Jonathan Daugherty]

I'm happy to announce the release of vty-ui 0.3.

Get it from Hackage:

  http://hackage.haskell.org/package/vty-ui

Or get the source with darcs:

  http://repos.codevine.org/vty-ui

Project homepage:

  http://codevine.org/vty-ui/

This version of vty-ui features a richer rendering engine, generalized text
transformations, and a more functional style.  If you've written any
applications
to use vty-ui, your type signatures and usage of a few of the built-in widget
types will need to change but the API is largely the same.  In
particular, the largest
change was a refactoring inspired by Luke Palmer's blog post, "Haskell
Antipattern:
Existential Typeclass," which targeted vty-ui (among other libraries)
in its treatment
of the topic:

  http://lukepalmer.wordpress.com/2010/01/24/haskell-antipattern-existential-typeclass/

Here's a summary of changes:

General
  * Replace Widget type class with a concrete Widget type
  * Move text widget into Graphics.Vty.Widgets.Text
  * Add support for generalized text "formatters"
  * Replace WrappedText widget type with a text-wrapping formatter
  * Provide a regex-based text-highlighting formatter (see the demo
for an example)
  * Refactor the rendering engine to provide "address" information so
you can get coordinates and size for rendered widgets
  * Add a few QuickCheck tests (and related fixes)

Enjoy!

-- 
  Jonathan Daugherty