Re: gtk 2.10 : GtkTreeView coords conversion

[Damien Carbonne <aetdcarbonne free fr>]

Kristian Rietveld a écrit :
> On Tue, Nov 13, 2007 at 09:58:15PM +0100, Damien Carbonne wrote:
>   
> > My problem is the following:
> > I'm trying to convert mouse coordinates (x, y), obtained from a 
> > button_press event,
> > into the clicked row by using gtk_tree_view_get_dest_row_at_pos.
> > I tried to use gtk_tree_view_widget_to_tree_coords to convert (x, y), 
> > without success.
> > I noticed that there is a coord shift between (x, y) obtained from 
> > button_press and the one obtained with DnD.
> >
> > So my question is:
> > - Is there any practical solution, with gtk 2.10, to convert 
> > button_event coords to be used
> >   with gtk_tree_view_get_dest_row_at_pos ?
> > - Or do I have to wait for a GtkAda 2.12 binding ?
> >     
>
> For handling button-press events, you want to:
>
> 1. Make sure the event is destined for the tree view's bin_window
> by checking that
>
>   event->window == gtk_tree_view_get_bin_window (tree_view)
>
> 2. Then directly call gtk_tree_view_get_path_at_pos() with the
> coordinates found in the event.  No need to translate coordinates here.
>
>
> It does not make much sense to use gtk_tree_view_get_dest_row_at_pos()
> instead, since that function just calls gkt_tree_view_get_path_at_pos()
> internally ;).
>
>
> Hope this helps.
>
>
>   
Thanks,

This worked.
I wanted to use the other function to create new nodes just
like DnD works (Into, Before, After, ...).
Looking into code of gtk_tree_view_get_dest_row_at_pos, I realized
there was a translation on Y axis using an internal macro (HEADER_...).
I have to think again to find the best way to create new nodes!

Thanks again
Damien

> regards,
>
> -kris.
>
>
>