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mevets
December 2nd, 2007, 04:21 AM
I am writing an alarm clock script with a GTK frontend. When the gui loads my spin widget is assigned a value. Then when I go to change the value it changes. Afterwards when I change a combobox that is connected to the spin widget the value should be passed. I never get the changed value though, I always get what it was initally set to.

Inside of __init__:


# make hour spin button
adjHour = gtk.Adjustment(7, 1, 12, 1, 0, 0)
spinHour = gtk.SpinButton(adjHour, 0, 0)
self.thespin = spinHour
hboxSetTime.pack_end(spinHour, False, False, 0)

# make status combobox
cmbStatus = gtk.combo_box_new_text()
cmbStatus.append_text("OFF")
cmbStatus.append_text("ON")
cmbStatus.set_active(0)
cmbStatus.connect("changed", self.statusChanged, spinHour.get_value())
btnBox.pack_end(cmbStatus, False, False, 0)
vbox1.pack_start(btnBox, False, False, 0)


My statusChanged:


def statusChanged(self, widget, hour):
print hour # this value is old!

How am I correctly supposed to get the value of my spin widgets?

llonesmiz
December 2nd, 2007, 11:12 AM
I think what you should do is change:


cmbStatus.connect("changed", self.statusChanged, spinHour.get_value())to:

cmbStatus.connect("changed", self.statusChanged, spinHour)and:

def statusChanged(self, widget, hour):
print hour # this value is old!to:

def statusChanged(self, widget, spinwidget):
hour=spinwidget.get_value()
print hour # this value is old!

The function you were passing in "connect" doesn't get evaluated every time the "changed" signal is activated. You should simply make that call in your callback and do whatever you need with its result.

Quikee
December 2nd, 2007, 11:18 AM
cmbStatus.connect("changed", self.statusChanged, spinHour.get_value())


Of course you get the initial value if you assigned in the connect the value that spinHour had at that time.

You should do should something like that instead:


cmbStatus.connect("changed", self.statusChanged, spinHour)



def statusChanged(self, widget, spinHour):
print spinHour.get_value()


or maybe:


cmbStatus.connect("changed", self.statusChanged, spinHour.get_value)



def statusChanged(self, widget, hourValueCallback):
print hourValueCallback()


or:

cmbStatus.connect_object("changed", self.statusChanged, spinHour)



def statusChanged(self, widget):
print widget.get_value()


or...

mevets
December 2nd, 2007, 05:35 PM
thanks guys, I havent tried this out yet but it seems like it would work!