Thanks for your answer,
I didn't know about that bug,
and actually my question was,how to draw the widget
i mean static, like a pixbuf, but after reading your code,
and some other doc about TreeViews i got the idea
it get draws like text, but when you click, it appears
the spin button.
Regarts, Joel Rivera
On Sun, 2009-12-20 at 15:17 +0100, Jiri Bajer wrote:
> On Sun, 2009-11-01 at 06:26 +0100, Joel Juvenal Rivera Rivera wrote:
> > I hope some one coud help me, i can't draw a spin button in a TreeView,
> > im using CellRendererSpin but how do i draw "the widget" not just the
> > text o something like that (in the CellRendererText for example).
>
> I used CellRendererSpin the following way - hope it helps a bit:
>
> class CellRendererSpinFixed(gtk.CellRendererSpin):
> # the whole class is just a workaround for PyGTK bug 492196
>
> __gtype_name__ = 'CellRendererSpinFixed'
>
> def __init__(self):
> gtk.CellRendererSpin.__init__(self)
>
> def do_start_editing(self, event, treeview, path, background_area,
> cell_area, flags):
> if not self.get_property('editable'):
> return
> spin = gtk.SpinButton(self.get_property('adjustment'))
> spin.connect('editing-done', self._editing_done, path)
> spin.connect('key-press-event', self._key_press_event, path)
> spin.connect('button-press-event', self._button_press_event)
> spin.show()
> spin.grab_focus()
> return spin
>
> def _editing_done(self, spin, path):
> self.emit('edited', path, spin.get_property('value'))
>
> def _key_press_event(self, spin, event, path):
> if event.type == gtk.gdk.KEY_PRESS:
> if gtk.gdk.keyval_name(event.keyval) == 'Up':
> spin.spin(gtk.SPIN_STEP_FORWARD)
> return True
> if gtk.gdk.keyval_name(event.keyval) == 'Down':
> spin.spin(gtk.SPIN_STEP_BACKWARD)
> return True
>
> def _button_press_event(self, spin, event):
> # avoid unwanted 'editing done' if the user clicks on spin
> arrows too
> fast, see PyGTK bug 492196 for details
> if event.type == gtk.gdk._2BUTTON_PRESS or event.type ==
> gtk.gdk._3BUTTON_PRESS:
> return True # we have already received all the clicks,
> throw away
> additional signals telling it's double/tripleclick
>
> ---
>
> if column_type == 'spin':
> adjustment = gtk.Adjustment(lower=args['lower'],
> upper=args['upper'],
> step_incr=1, page_incr=10)
> renderer = CellRendererSpinFixed() # replace with
> regular
> cellrendererspin when bug 492196 gets finally fixed
> renderer.set_property('adjustment', adjustment)
> renderer.set_property('editable', True)
> renderer.set_property('digits', args['digits'])
> renderer.connect('edited', self._spin_update_model,
> len(self._model_columns))
> column = gtk.TreeViewColumn(title, renderer,
> text=len(self._model_columns))
> column.set_property('expand', False)
> column.set_property('reorderable', True)
> column.set_property('resizable', True)
> if args['digits']:
> self._model_columns.append(gobject.TYPE_FLOAT)
> else:
> self._model_columns.append(gobject.TYPE_INT)
> self._view_columns.append(column)
> return
> ---
>
> def _spin_update_model(self, renderer, path, new_text, column):
> """
> Updates the model whenever the spin value changes.
> """
> digits = renderer.get_property('digits')
> if digits > 0:
> try:
> new_value = float(new_text)
> except:
> return
> (integral, decimal) = new_text.split('.')
> new_text = integral + '.' + decimal[0:digits]
> new_value = float(new_text)
> else:
> try:
> new_value = int(float(new_text)) # direct
> conversion of float-string
> to int raises an error
> except:
> return
>
> self.model[self.sortable_model.convert_path_to_child_path(path)][column]
> = new_value
>
> ---
>
>
>
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