Re: [gtkextra] Gtkextra on Windows

[Adrian F. <fe...@ma...>]

> > > gtksheet seems to work but there are some warning messages.
> > 
> > It'd be great to have them identified.
> 
> I'm using gtksheet in my application program, gretl
> (http://www.ecn.wfu.edu/gretl).  I've found that it works very
> nicely under Linux.  I've also made a win32 version of my
> program (using Tor Lilquist's GTK port for win32) and in that
> context gtksheet is misbehaving.  On closing a gtksheet window I
> see a ton of "GTK CRITICAL" messages relating to
> "gtk_widget_unref", with the assertion "gtk_widget != NULL"
> failing.  These messages spew out into a console box, but
> actually they're non-fatal; the program continues OK.  I've
> searched my own embedding code for problems that might generate
> this but I haven't yet found anything.  There are no such
> messages under Linux.  I know Tor is using the development
> branch of GTK as the basis for his win32 port, rather than the
> latest stable version, and I'm wondering if there's any subtle
> incompatibility there.
>

Yes, it sounds weird. It may be connected to the gtk port. If you find
anything let us know, and we'll see how to fix it.
 
> A couple of other gtkextra points while I'm here.
> 
> I really like gtkiconlist and I'm experimenting with it in my
> own program.  I've hit a couple of snags:
> 
> (1) In scigraphica, if you add worksheet icons repeatedly to an
> iconlist window they cumulate in rows, then columns, in their
> notebook page, filling the space.  If my app, if I add objects
> repeatedly they will only fill one row (if the iconlist title
> placement is to the right) or one column (if the title placement
> is below, which I prefer).  Take the latter case: I add a bunch
> of objects and they all fall into line in one column, at the
> left of the iconlist window, with a vertical scrollbar appearing
> when they go beyond the visible vertical space, despite the fact
> that there's plenty of unused column space to the right.  I've
> looked at the scigraphica code and compared it with my own but I
> can't figure out where the difference lies -- what is forcing my
> objects into just one row or column of the iconlist space.  Any
> suggestions on this would be very gratefully received.
> 

It shouldn't happend. When the column is filled until the bottom of the
window, it should start with a new column. When all the window is filled,
then the scrolled bar should appear ON THE BOTTOM. I don't know what could
be wrong. It works fine in SG, the demo program, and the file
selector. Honestly I'd like help, but I don't know what to say. If you can
send the part of the code concerning to the problem, we can eventually
find the way. I may also be a bug...

> (2) Sorting of objects in an iconlist window: Objects are
> auto-sorted by default.  I'd like to be able to adjust this, or
> turn it off altogether.  In my app, I'd prefer for the objects
> to be unsorted, appearing in the order in which they were added
> to the list.  In scigraphica you can "fool" the sorting order
> quite easily.  Create a bunch of worksheets: you're OK up to
> number 9, but then number 10 is inserted between numbers 1 and
> 2.  
> 

try setting GTK_ICON_LIST(iconlist)->compare_func = NULL;
you can customize this also with you own comparison function.
Take a look at the default function sort_list in gtkiconlist.c 


> Thanks very much for the great work on gtkextra: it holds out
> the promise of making gtk a much better program development
> choice.  I'm also very pleased that you've chosen to add gnome
> support as an optional extra rather than a core requirement
> (e.g. in scigraphica).  Personally I really like GTK but can't
> be bothered with gnome.
> 

:). Thank you for using it, and for you nice words. 
Regards,
<ADRIAN>