[Glade-users] combo box question

[ashats at hotmail.com (Arthur Shats)]

Thank you, Virtualex.
I'll try to implement your suggestions, they do seem complicated, so I definitely ask more questions. And I 
will look into the book you advised as well.
 
Arthur.
 
> Date: Wed, 29 Sep 2010 08:56:10 -0700
> Subject: Re: [Glade-users] combo box question
> From: virtualex at linuxoid.net
> To: ashats at hotmail.com
> CC: glade-users at lists.ximian.com
>
> > I have a combobox created in Glade. In my Python code, I populate the
> > combobox list with items. When I tab or click into the box, I want the
> > item list to dropdown automatically, without clicking on the arrow. Also,
> > when user starts typing into the box, I would like the focus jump to the
> > item that closely matches what user typed... or something like that... a
> > standard combo box funtionality. How would I accomplish this?
>
> You may try to emit "popup" signal which by default gets emitted on
> Alt+Down, but you should keep in mind that the menu gets keyboard focus,
> so the user won't be able to type anything into the entry while it's
> shown. In other words there's no way to accomplish what you want using
> this popup menu (although it might be a sort of answer to your next
> question).
>
> The right way to do it would be creating GtkEntryCompletion and attaching
> it to the entry. It would show dropdown menu with suggestions when the
> user starts typing. That menu has nothing to do with combobox menu, but
> you can reuse one treemodel for both.
>
> > Another way I am looking is to prevent the user from typing anything into
> > the combobox and let him only pick from the dropdown down list. How do I
> > prevent the user from typing into the combobox?
>
> The straightforward way is to use proper widget intended for it, namely
> plain combobox, not comboboxentry. Or if you insist on status quo, filter
> "key-press-event". Yet another option could be getting actual entry widget
> from inside of combobox with gtk_bin_get_child() and making it
> insensitive.
>
> Looking back at the amount of questions you have, may I suggest
> http://www.gtkbook.com/ as a good source of answers to many of them. It
> doesn't target Python, and it might be slightly dated by now, but it still
> good investment which provides perfect introduction into the matter you're
> trying to conquer.
                                          
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