Is anyone out there??? I reread Daan's original paper and found a hint that layouts need to mention each widget exactly once (though I can't find anything definitive in documentation for either wxhaskell or wxwidgets). Obeying that "rule" avoids the garbling, but I'm still not able successfully to change the layout repeatedly. Even if I could, how then would I show different subsets of widgets at different times?
Is there any hope of getting a decent description of wxhaskell's (intended) semantics? I'm getting exasperated. At 12:08 AM -0400 5/9/08, Dean Herington wrote: >I'm using wxhaskell 0.10.3 with ghc 6.8.2 on Windows XP Pro. I'm >trying to figure out how to change the content of a frame >dynamically. The program shown below has several problems: > * The initial text is garbled (a combination of "Screen 1" and "Screen 2"). > * The button label doesn't change when first clicked. > * Nothing changes on subsequent button presses. >Any ideas? > >> module Main where >> >> import Graphics.UI.WX >> >> main = start gui >> >> gui = do >> f <- frame [text := "Test 1"] >> p <- panel f [] >> t1 <- staticText p [text := "Screen 1"] >> b1 <- button p [text := "switch to 2"] >> t2 <- staticText p [text := "Screen 2"] >> b2 <- button p [text := "switch to 1"] >> set b1 [on command := switch f p t2 b2] >> set b2 [on command := switch f p t1 b1] >> switch f p t1 b1 >> >> switch f p t b = set f [layout := fill $ container p $ margin 10 $ > >column 5 [widget t, widget b]] ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ wxhaskell-users mailing list wxhaskell-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxhaskell-users
