Hi Dean, I'm very sorry nobody got back to you. Personally, I filed your message away in my pending queue and marked it 'reread'.
By the way, it might help to attach your examples in an easy compile-and-run format, as I have hopefully done. It just smooths out these discussions a little bit! :-) On Thu, May 15, 2008 at 01:10:58 -0400, Dean Herington wrote: > 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. Could you attach your modified code? My experience with wxhaskell is that once you create a widget, it's going to be displayed, so you might as well lay it out somewhere. > Even if I could, how > then would I show different subsets of widgets at different times? You could set the visible attribute. See attachment. I do not claim that this is the right way to go about things. Maybe somebody like Mads or Shelarcy would have a better idea. -- Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow> PGP Key ID: 08AC04F9
import Graphics.UI.WX
main = start gui
gui = do
f <- frame [text := "Test 1"]
p1 <- panel f []
t1 <- staticText p1 [text := "Screen 1"]
b1 <- button p1 [text := "switch to 2"]
p2 <- panel f []
t2 <- staticText p2 [text := "Screen 2"]
b2 <- button p2 [text := "switch to 1"]
let l1 = [ container p1 $ margin 10 $ column 5 [widget t1, widget b1] ]
l2 = [ container p2 $ margin 10 $ column 5 [widget t2, widget b2] ]
set b1 [on command := switch f l2 p2 p1 ]
set b2 [on command := switch f l1 p1 p2 ]
switch f l1 p1 p2
where
switch f l on off = do set on [ visible := True ]
set off [ visible := False ]
set f [layout := fill $ column 5 l]
pgp2a5IYQcRuD.pgp
Description: PGP signature
------------------------------------------------------------------------- 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
