I suppose an attachment would be helpful (weird that it didn't send).
--
jorda...@fastmail.fm
On Mon, Jan 6, 2014, at 08:50 AM, Colomban Wendling wrote:
> Hi,
>
> Le 06/01/2014 17:26, Jordan H. a écrit :
> > Attached is the Glade file. The GtkListStore ("liststore_button_list")
> > is assigned the GtkTreeView ("treeview_button_order").
>
> Looks like the attachment is missing.
>
> > The GtkTreeView doesn't seem to reflect the changes made to the
> > GtkListStore.
>
> No idea if it could be this, but someone recently had a similar issue
> because he's TreeView wasn't inside a ScrolledWindow, and GTK3 TreeView
> has a resizing bug in this case (so the value where there but the view
> was too small to show them). So, is your TreeView in a ScrolledWindow,
> or does it help?
>
> > I iterated through the GtkListStore itself and found that
> > values were being added.
> >
> > if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(list_store), &iter)){
> > gtk_tree_model_get(GTK_TREE_MODEL(list_store), &iter, 0,
> > &test_value, -1);
> > g_debug(" - Value: \"%s\"", test_value);
> > }else{
> > g_warning("GtkTreeModel contains no elements!");
> > }
> > while (gtk_tree_model_iter_next(GTK_TREE_MODEL(list_store), &iter)){
> > memset(test_value, 0, sizeof(gchararray));
> > gtk_tree_model_get(GTK_TREE_MODEL(list_store), &iter, 0,
> > test_value, -1);
> > g_debug(" - Value: \"%s\"", test_value);
>
> Wow, I don't know what you are trying to do here with the memset() and
> stuff. "gchararray" in this context actually means "a C string",
> `gchar*`. Also, gtk_tree_model_get() *duplicates* the data, so you want
> to free the memory afterwards.
>
> gchar *str;
> gtk_tree_model_get(model, &iter, 0, &str, -1);
> // ...
> g_free(str);
>
>
> Not to duplicate code you also probably would rather implement iteration
> like this:
>
> if (gtk_tree_model_get_iter_first(...)) {
> do {
> ...
> } while (gtk_tree_model_iter_next(...));
> }
>
> > I'm wondering if the mutilated strings is what's causing my problem. I'm
> > expecting the values to be "Button 1", "Button 2", etc., and the button
> > labels reflect this change (as expected).
>
> This may be a reason if the data is actually wrong (I mean, if it's not
> your fetching when printing that is), because GtkCellRendererText
> requires UTF-8-encoded text. But if this was the error, you'd see a lot
> of warnings in the terminal.
>
> I see 3 possibilities:
>
> 1) the tree model is not properly connected to the tree view;
>
> 2) you didn't add CellRenderers;
>
> 3) your tree view isn't packed in a ScrolledWindow and you experience
> the above-mentioned bug.
>
>
> Hope it helps. Regards,
> Colomban
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