08.07.2011 10:08, Heinrich Apfelmus пишет:
Dear Haskellers,
Can GUI programming be liberated from the IO monad? Functional Reactive Programming (FRP) promises as much, and I'm trying to make this dream a reality with my [reactive-banana][] library. Having released version 0.4.0.0, I am now looking for example programs to direct the future evolution of the library.
Do you know any *small GUI programs* that you would *like* to see *implemented with Functional Reactive Programming?*
I'm sure that some of you
* are interested in FRP and would like to learn from a few simple but beautiful examples * or have written small GUI programs that they are unhappy with because they were not purely functional * or have thought about FRP before and concocted a few examples that are very tricky to implement with FRP * or have written a nice little GUI application that simply makes a great example.
I would love to hear your examples, so that I can try to convert them to FRP style and test my library against them!
Strictly speaking, it doesn't have to be an example with a graphical interface, I'm also interested in audio and animation examples, though I'm currently focusing on GUIs.
Maybe realize on FRP one of following bored examples: CRUD table: create, update, delete records in table (for example Person records), with validating user input, auto-calculated fields (current age by birth date), totals by column, filtering. I think same GUI tasks get solved many GUI developers in imperative style. I hope solution of such day-tasks in FRP will be elegant Simple GUI designer (uml-diagrams or reports): very intresting to see FRP approach (events on custom drawing elements, inplace modification of elements) Best regards, Dmitriy