[pygtk] TreeView / ListStore question: tabbing through coulmns

[Seth Mahoney]

Have you tried connecting to the editing-canceled signal and having your
callback function do nothing but return True?  This should let you test
whether it is in fact the editing-canceled signal that's causing the
problem.

On Wed, 2007-01-31 at 21:45 -0600, Jordan Callicoat wrote:
> On Wed, 31 Jan 2007 18:58:35 -0800
> Seth Mahoney <smahoney at pdx.edu> wrote:
> 
> > Just on a hunch, if you insert a print statement like so:
> > 
> > def on_edit_item(renderer, row, text, col):
> >   print(text)
> >   model[row][col] = unicode(text)
> > 
> > Does it print the expected (new) text, or the old text (or anything at
> > all)?
> > 
> > On Wed, 2007-01-31 at 17:24 -0600, Jordan Callicoat wrote:
> > > On Wed, 31 Jan 2007 14:38:01 -0800
> > > Seth Mahoney <smahoney at pdx.edu> wrote:
> > >  
> > > > 
> > > >    If your gtk.CellRenderer is called 'renderer', I'd try:
> > > > 
> > > >    renderer.stop_editing(false)
> > > > 
> > > 
> > > Hi Seth,
> > > 
> > > Tried that as well. I also tried getting the entry box and using
> > > 'get_text' to get the updated text, then emitting 'edited', but that
> > > only got the old value just like 'get_value'. Below is a simplified
> > > example of what I'm trying to do:
> > > 
> > > 
> > > ==[snip]==
> > > 
> > > #!/bin/env python
> > > 
> > > import pygtk
> > > pygtk.require('2.0')
> > > import gtk
> > > 
> > > def on_edit_item(renderer, row, text, col):
> > >   model[row][col] = unicode(text)
> > > 
> > > def get_first_selected_row():
> > >   try:
> > >     return treeview.get_selected_rows()[1][0][0]
> > >   except:
> > >     return 0
> > > 
> > > def on_key_press(widget, event):
> > >   keyname = gtk.gdk.keyval_name(event.keyval)
> > >   if keyname == 'Tab': # event.keyval = 65289
> > >     row, col = widget.get_cursor()
> > >     if row == None:
> > >       row = get_first_selected_row()
> > >     if col == None:
> > >       col = 0
> > >     else:
> > >       col = col.get_data('id')
> > >     if col == colnum - 1:
> > >       nextcol = 0
> > >     else:
> > >       nextcol = col + 1
> > >     print nextcol
> > >     if isinstance(row, (list, tuple)):
> > >       row = row[0]
> > >     renderer = widget.get_column(col).get_data('renderer')
> > > 
> > >     #  this doesn't work...
> > >     ##tree_iter = model.get_iter(row)
> > >     ##renderer.emit('edited', row, model.get_value(tree_iter, col))
> > >     
> > >     #  this either
> > >     ##renderer.stop_editing(False)
> > >     
> > >     widget.set_cursor(row, widget.get_column(nextcol), True)
> > >     return True # cancel the event
> > > 
> > > win = gtk.Window(gtk.WINDOW_TOPLEVEL)
> > > win.set_default_size(700, 450)
> > > win.set_title('Test')
> > > win.connect('delete_event', gtk.main_quit)
> > > 
> > > model     = gtk.ListStore(str, str, str, str, str, str, str, str)
> > > treeview  = gtk.TreeView(model)
> > > colnum    = 8
> > > colwidths = [90, 70, 140, 40, 30, 100, 100, 100]
> > > coltexts  = ['blah'] * 8
> > > 
> > > for col in range(colnum):
> > >   renderer = gtk.CellRendererText()
> > >   renderer.set_property('ellipsize', True)
> > >   renderer.set_property('editable', True)
> > >   renderer.set_property('xpad', 5)
> > >   if col % 2 == 0:
> > >     renderer.set_property('background', '#DEDEDE')
> > >   else:
> > >     renderer.set_property('background', '#EFEFEF')
> > >   renderer.connect('edited', on_edit_item, col)
> > >   treecol = treeview.insert_column_with_attributes(
> > >               -1, coltexts[col], renderer, text=col
> > >             )
> > >   treecol.set_spacing(10)
> > >   treecol.set_resizable(True)
> > >   treecol.set_alignment(0.5)
> > >   treecol.set_data('id', col)
> > >   treecol.set_data('renderer', renderer)
> > >   treecol.set_min_width(colwidths[col])
> > > 
> > > model.append(['Foo', 'Bar', 'Baz', 'Bat',
> > >               'Foo', 'Bar', 'Baz', 'Bat'])
> > > 
> > > treeview.set_cursor(0)
> > > treeview.connect('key_press_event', on_key_press)
> > > 
> > > win.add(treeview)
> > > win.show_all()
> > > gtk.main()
> > > 
> > > ==[snip]==
> > > 
> > > Regards,
> > > Jordan
> > > _______________________________________________
> > > pygtk mailing list   pygtk at daa.com.au
> > > http://www.daa.com.au/mailman/listinfo/pygtk
> > > Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
> > > 
> > 
> 
> Seth,
> 
> Tried that too. But nothing ever gets printed. That's why I thought
> mabye 'editing-canceled' was being emitted since the callback
> for 'edited' never gets triggered. I'm at a lose.
> 
> Regards,
> Jordan
>