Re: connect().ing to a clickable treeview header

[Bob Caryl <bob fis-cal com>]

Doug McLain wrote:

> I've got a single column treeview with the header set to clickable via:
>
> TreeViewColumn* col = tview->get_column (0);
> col->set_clickable (true);
>
> I use tview->signal_button_release_event().connect() to handle 
> selections to the treeview, but I also want to add some custom 
> functionality to the header (not for sorting). Clicking on the header 
> doesnt trigger tview->signal_button_release_event(), and I cant figure 
> out how to catch a click of the header.  Anyone?
>
> Doug
> --
> http://nostar.net/
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Since you have only one column you should add the following after the 
code you show:

col->set_sort_column(<a column member of your derived column record 
class goes here>);
col->signal_clicked().connect(sigc::mem_fun(*this, 
&YourClass::your_callback_slot));

Now, your callback slot should look minimally look like this:

void YourClass::your_callback_slot(void)
{
   tview->set_search_column(0);
}

Actually, the only reason i needed the callback slot was that in my 
application, I had more than one column, so I needed to tell the 
treeview upon which column to sort the records in the TreeModel.

Hope this helps.

Bob

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