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List:       gtk-app-devel
Subject:    Re: Has anyone been able to force TreeView expander with no children?
From:       "Daniel B. Thurman" <dant () cdkkt ! com>
Date:       2009-10-15 16:40:57
Message-ID: 4AD75099.2020406 () cdkkt ! com
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On 10/15/2009 07:53 AM, Lars Wirzenius wrote:
> to, 2009-10-15 kello 07:44 -0700, Daniel B. Thurman kirjoitti:
>   
>> (1) I am trying to find the "expander-open" event for the
>>       connect method. I think it is something like:
>>     
> http://library.gnome.org/devel/gtk/stable/ has a list of all widgets,
> and lists for each widgets the signals they support. The page for each
> widget only lists the signals native to it, not the ones it inherits
> from its parent. I have not tried this, but this seems relevant to you:
>
> http://library.gnome.org/devel/gtk/stable/GtkTreeView.html#GtkTreeView-expand-collapse-cursor-row
>
>   
>> (2) I note that for some reason when I open an expander, the
>>      the icon/text next gets "right justified".
>>     
> I am not sure what would happen to that, but my first guess is that you
> have one column for the expander, but no value to put in its cell, and
> another column for the folder name. If you remove the first column and
> mark the folder name column as the expander column (see link below), it
> might fix things.
>
> http://library.gnome.org/devel/gtk/stable/GtkTreeView.html#gtk-tree-view-set-expander-column
>
>
>
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>   
Focusing only on (1) above, it appears that the signal I am seeking
for is: "row-has-child-toggled", but I get an error saying:

self.treeview.connect('row-has-child-toggled', self.on_row_child_toggled)
TypeError: <gtk.TreeView object at 0xb7b9ab6c (GtkTreeView at
0x8df5080)>: unknown signal name: row-has-child-toggled

It's documented, but is it functional, or is it the correct signal I am
seeking?


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