[Haskell-cafe] GUI library

Michael Mossey mpm at alumni.caltech.edu
Sat Aug 29 12:52:41 EDT 2009

Hi Jean-Denis,

Thanks for the information. Do you know how WxHaskell fits my needs? For 
example, does it have good docs and examples for a beginner? Does it have 
the ability to draw lines and characters on a surface? Does it have a type 
of "canvas" which usually refers to an optimized drawing surface?


Jean-Denis Koeck wrote:
> I began writing a commercial app with a GUI using Gtk2hs,
> but it looked ugly on Windows. I'm switching to WxHaskell.
> 2009/8/29 Michael Mossey <mpm at alumni.caltech.edu 
> <mailto:mpm at alumni.caltech.edu>>
>     I want to choose a GUI library for my project. Some background: I'm
>     a beginner to functional programming and have been working through
>     Haskell books for a few months now. I'm not just learning Haskell
>     for s**ts and giggles; my purpose is to write
>     music-composition-related code; in particular, I want to write a
>     graphical musical score editor. (Why write my own editor, you may
>     ask? Because I want to fully integrate it with
>     computer-assisted-composition algorithms that I plan to write, also
>     in Haskell.) I decided to use Haskell for its great features as a
>     functional programming language.
>     Regarding a choice of GUI library, I want these factors:
>     - it needs to provide at a minimum a drawing surface, a place I can
>     draw lines and insert characters, in addition to all the standard
>     widgets and layout capabilities we have to come to expect from a GUI
>     library.
>     - This is a Windows application.
>     - it needs to be non-confusing for an intermediate-beginner
>     Haskeller. Hopefully good documentation and examples will exist on
>     the web.
>     - It might be nice to have advanced graphics capability such as Qt
>     provides, things like antialiasied shapes, and a canvas with
>     efficient refresh (refereshes only the area that was exposed, and if
>     your canvas items are only primitives, it can do refreshes from
>     within C++ (no need to touch your Haskell code at all). However I'm
>     wondering if qtHaskell fits my criteria "well-documented" and "lots
>     of examples aimed at beginners".
>     Thanks,
>     Mike
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