[pygtk] TreeView / ListStore question: tabbing through coulmns

[Jordan Callicoat]

Hi list,

I have a callback connected to a treeview (liststore model,
editable) for 'key_press_event', and I want to capture 'Tab' key
presses and move from one column to the next. I have this working; the
problem is, when the current cell is being edited, and I call
'set_cursor' to move to the next column, the text from the original
cell is not updated. I think I need to emit the 'edited' signal on the
cellrenderer before I call 'set_cursor', but I'm running into the
problem of getting the updated text from the cell in order to pass it to
emit. How can I do this properly? Here's the callback:


  def on_key_press(self, widget, event):
    keyname = gtk.gdk.keyval_name(event.keyval)
    if keyname == 'Tab': # event.keyval = 65289
      row, col = widget.get_cursor()
      if row == None:
        row = self.get_first_selected_row()
      if col == None:
        col = 0
      else:
        col = col.get_data('id') + 1
      if col == self.colcount:
        col = 0
      if isinstance(row, (list, tuple)):
        row = row[0]
      renderer  = widget.get_column(col - 1).get_data('renderer')
      tree_iter = self.model.get_iter(row)
      text      = self.model.get_value(tree_iter, col - 1)
      renderer.emit('edited', row, text)
      widget.set_cursor(row, widget.get_column(col), True) # <- ?????
      self.get_rows()
      return True # cancel the event

Ps. This is just draft code, I know it's ugly. I'll refactor
and clean everything after I get it working right. :)

Thanks,
Jordan