Re: foreach functions
- From: Tristan Van Berkom <vantr touchtunes com>
- To: Harring Figueiredo <harringf yahoo com>
- Cc: gtk_list gtk gtk <gtk-app-devel-list gnome org>
- Subject: Re: foreach functions
- Date: Fri, 06 Dec 2002 13:35:21 -0500
Hmmm, If I were to make a sugestion,
I would leave *foreach* the way it is so as
not to break aplications that use this api
already and add a function *find_custom*
similar to the GList api.
This would be consistent with
the iteration api for G[S]Lists.
although this doesn't consern me at all
and I havent even used the treeselection;
thats my 2 cents.
Harring Figueiredo wrote:
This is a suggestion -- and I am not sure where to sent it to, so I am posting
I could not find a way to break out of the
gtk_tree_selection_selected_foreach function -- It means that I will have to
loop through the whole thing even if I am looking for only one thing (Like a
particular selected row, and that selected row is the first row, I still have
to loop through all the others needlessly.)
It turns out that I also implemnted some of my programs with the "foreach"
design pattern (i.e. callback), but I chenged the signature of my callback
function to return a boolean.
If the callback returns TRUE, it means the "foreach" should continue, else,
the foreach breaks out.
Is that possible to change this behavior in upcoming release of GTK.
Change this to:
gboolean (*GtkTreeSelectionForeachFunc) (GtkTreeModel *model,
^^^^^^^^ GtkTreePath *path,
If it returns FALSE, the foreach function would "give up" the iteration, else
it would continue.
This is probably true for every "foreach" function that is on glib/gtk -- It
is really a pain to go through the loop just to find out that you have
something selected on the tree.
*SIGH* I am now ready to take flames...
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