[maemo-developers] Aw: Re: Fremantle user interface behaviour and API

[From: API]

From: Cornelius Hald <hald at icandy.de>

> > > Tree View
> > > I changes the code from using gtk_tree_view_new() to
> > > hildon_gtk_tree_view_new(). I thought this would give me a finger friendly
> > > version of the tree view, but I cannot see a difference between the hildon and
> > > the gtk version. Also the different HildonUIModes have no effect for me. What
> > > is the supposed outcome? How do I get the tree view to be finger friendly? I'm
> > > using a GtkListStore as backend and the view shows two sortable columns - if
> > > that matters.

If you want to see the differences between the HildonUIModes, you can try to
take a look to the hildon-pannable-area-touch-list-example, included on the
examples directories. AFAIK, the example package is not included with the
beta, but you can download the hildon-widgets source code and compile it
by yourself. This example compare the two hildon modes and the "old
behaviour".

> >
> > To avoid breaking legacy applications, the proper theming is done only
> > to treeviews inside a pannable area. If you put your treeview inside a pannable
> > area, you'll get finger-friendly sized rows.
> 
> Ok, I changed that too and the result is looking good.
> Still I have two more questions:
> 1. Which signal gets emitted when one of the rows is selected?

This is still a normal treeview, you use hildon_gtk_tree_view_new only to ensure
to get the proper theming. So when one of the rows are selected the GtkTreeSelection
of this treeview emits the signal "changed" [1].

In the same way, recently a new signal was added to the maemo-flavoured gtk, so
if a row is tapped on the treeview, the treeview emits the signal "hildon-row-tapped",
this could be useful to you too although I'm not sure if it was included on this beta,
take a look to the gtk code to confirm that.

I hope this helps

===
API (apinheiro at igalia.com)



[1] http://library.gnome.org/devel/gtk/stable/GtkTreeSelection.html#GtkTreeSelection-changed