Hello Andy,
On Mon, 2010-10-18 at 14:06 +0800, Andy Stewart wrote: > Hi Maxime, > > Sorry for late, quite busy recently. :( No worries at all, you didn't even take two days to reply, that's actually what I would consider a fast reply! > Maxime Henrion <mhenr...@gmail.com> writes: > > > Hello all, > > > > > > I recently had to use a CheckMenuItem object in some gtk2hs code. I was > > surprised to see that the documentation doesn't contain anything on the > > "toggled" signal for this object. > > > > I resorted to use connectGeneric but that function is clearly very > > unsafe. It seems to accept any type for the handler, and if you get it > > wrong, you experience stack trashing and segfaults. In my case, trying > > to use a plain IO action as the handler caused crashes; reading some > > more code I prefixed it with "\_ ->" and it now works fine... > I have add "toggle" signal in darcs. Great! I've been trying it and it works perfectly. Thanks to this and another patch I'm about to send, I can get rid of all the connectGeneric calls in my application. I see you called it "checkMenuItemToggled", presumably because "toggled" was already taken by ToggleButton. What is the rule for namespace clashes? Should new code only use fully qualified names? > > Furthermore, I had to also bind to the "row-activated" signal of the > > TreeView object. Using onRowActivated works fine, however the > > documentation marks it as deprecated, and doesn't offer any replacement > > for it. Supposedly, that would be: > > > > rowActivated :: TreeViewClass self => Signal self (TreePath -> > > TreeViewColumn -> IO ()) > > > > It seems to me that gtk2hs has moved onto using the "on" and "after" > > combinators for handling signals, but that it still lacks replacements > > for a fair number of old-style signal binding functions. > Yes, we move noto 'on/after' signal, make API simpler. :) > > Unfortunately, not all old-style signal have convert to new style, Axel > and me quite busy recently. > > Maxime, can you convert all old-style signals to new style if you have time? Converting all of them is unfortunately way beyond what I can do with respect to my free time, sorry :-(. I am willing to help though, and I will continue to send patches every time I encounter something that I can fix and/or improve. One is actually on its way to this mailing list :-P. > Thanks for report! :) Thanks for your quick action here, and also for committing my patches in the other thread (the treeModelFilterSetVisibleFunc and treeSortableSetDefaultSortFunc bug fixes). Cheers, Maxime ------------------------------------------------------------------------------ Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! http://p.sf.net/sfu/adobe-dev2dev _______________________________________________ Gtk2hs-devel mailing list Gtk2hs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gtk2hs-devel
