Re: tab order and restricting entry widgets

[Vlad Harchev <hvv hippo ru>]

On Fri, 14 Jul 2000, xander wrote:

> On Fri, 14 Jul 2000, Vlad Harchev wrote:
> 
> > Date: Fri, 14 Jul 2000 16:38:10 +0500 (SAMST)
> > From: Vlad Harchev <hvv@hippo.ru>
> > To: Dave Reed <dreed@capital.edu>
> > Cc: gtk-list@gnome.org
> > Subject: Re: tab order and restricting entry widgets
> > 
> > On Fri, 14 Jul 2000, Dave Reed wrote:
> > 
> > > 
> > > Is there an easy method to change the focus order when you tab through
> > > entry widgets.  I've got a bunch of entry and combo widgets in a table
> > > and I want the tab key to go down the column first rather than across
> > > the row.  I guess I could use the leave_notify signal for each widget,
> > > but that would be a pain.
> > 
> >  As for focus order - I don't know any easy solution.
> >  
> > > Is there a way to restrict entry widgets to only numeric (and
> > > only dates would be great also)?
> > 
> >   No special support for this exists, but you always can connect to "changed"
> > signal, validate the data, and act accordingly.
> 
> That is an easy solution. Connect the signal "changed" in this case for
> each widget and supply the next widget as extra data. In the callback,
> use gtk_widget_grab_focus((GtkWidget*)data) and this should do the trick.

  Yes, but this requires a lot of handwork. It would be nice to hack glade to
do this.
  As for original case - I think the following nice hack will work:
create hbox, pack vboxes into it and make each vbox contain the widgets that
a column of your table contained. In this case, pressing tab will first switch
to next entry in column, then to next column.
 
> > I prefer to disable "OK"
> > button if data is invalid; coloring the text of the entry with different color
> > is nice too.
> 
> You mean selecting the whole entry text which is faulty? That is imo a
> nice solution.

  No, I meant coloring the text with another color, not selecting it 
as with shift-arrow. When the entry content becomes valid again, restore the
color.
 
> 
> --
> A skunk sat on a stump and thunk the stump stunk,
> but the stump thunk the skunk stunk.
> 

 Best regards,
  -Vlad