[Tutor] Button Signals
Hi,
I am having difficulty with using signal handlers. I am using Glade 2 and Pygtk. My
editor is Pythoncard. The following code connects to button
one and calls a function which hides button one.
self.wTree = gtk.glade.XML (phonelog.glade,
window1)
dic={on_window1_destroy
: self.quit, }
self.wTree.signal_autoconnect (dic)
process = self.wTree.get_widget(button1)
process.connect(clicked,
self.callback1, start_date, process)
def callback1(self,data,start_date,process):
process.hide()
The above code works fine. However I want button one to remain on
my GUI. Thus, I want to just stop the
signal being emitted after it is pressed once. I have used the following code which is
trying to disconnect the button one:
self.wTree = gtk.glade.XML (phonelog.glade,
window1)
dic={on_window1_destroy
: self.quit, }
self.wTree.signal_autoconnect (dic)
process = self.wTree.get_widget(button1)
process.connect(clicked,
self.callback1, start_date, process)
def callback1(self,data,start_date,process):
process.disconnect()
When I run this code I get the error
TyoeError: Object takes exactly one argument(0 given)
When I put an argument in, it says that the argument must be
an integer. I have tried a number
of integers at random but none work.
On the Pygtk tutorial it states the following:
3.1.More on Signal
Handlers
Lets take another look at the connect() call.
object.connect(name, func,
func_data)
The return value from a connect() call is an integer tag that identifies your callback.
As stated above, you may have as many callbacks per signal and per object as
you need, and each will be executed in turn, in the order they were attached.
This tag allows you to remove this callback
from the list by using:
object.disconnect(id)
So, by passing in the tag returned by one of
the signal connect methods, you can disconnect a signal handler.
How do I find out what the integer tag
is, so that I can put this in my code?
I have tried the pygtk faq page but it
is currently unavailable.
Any help greatly appreciated.
Thanks,
John.
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Re: [Tutor] Button Signals
Hi John, I'll answer your questions, but first: Pythoncard is for wxPython. wxPython is vastly different to PyGTK afaik.The docs you quote answer your question:
The return value from a connect
() call is an integer tag that identifies your callback.
As stated above, you may have as many callbacks per signal and per object as
you need, and each will be executed in turn, in the order they were attached.
This tag allows you to remove this callback
from the list by using:
object.disconnect(id)
So, by passing in the tag returned by one of
the signal connect methods, you can disconnect a signal handler.Your code needs the following: self.
callback_id1 = process.connect(clicked,
self.callback1, start_date, process)
def callback1(self,data,start_date,process
):
process.disconnect(self.callback_id1)
On 5/7/06, John CORRY
[EMAIL PROTECTED] wrote:
Hi,
I am having difficulty with using signal handlers. I am using Glade 2 and Pygtk. My
editor is Pythoncard. The following code connects to button
one and calls a function which hides button one.
self.wTree = gtk.glade.XML
(phonelog.glade,
window1)
dic={on_window1_destroy
: self.quit, }
self.wTree.signal_autoconnect (dic)
process = self.wTree.get_widget(button1)
process.connect(clicked,
self.callback1, start_date, process)
def callback1(self,data,start_date,process
):
process.hide()
The above code works fine. However I want button one to remain on
my GUI. Thus, I want to just stop the
signal being emitted after it is pressed once. I have used the following code which is
trying to disconnect the button one:
self.wTree = gtk.glade.XML
(phonelog.glade,
window1)
dic={on_window1_destroy
: self.quit, }
self.wTree.signal_autoconnect (dic)
process = self.wTree.get_widget(button1)
process.connect(clicked,
self.callback1, start_date, process)
def callback1(self,data,start_date,process
):
process.disconnect()
When I run this code I get the error
TyoeError: Object takes exactly one
argument(0 given)
When I put an argument in, it says that the argument must be
an integer. I have tried a number
of integers at random but none work.
On the Pygtk tutorial it states the following:
3.1.More on Signal
Handlers
Lets take another look at the connect() call.
object.connect(name, func,
func_data)
The return value from a
connect() call is an integer tag that identifies your callback.
As stated above, you may have as many callbacks per signal and per object as
you need, and each will be executed in turn, in the order they were attached.
This tag allows you to remove this callback
from the list by using:
object.disconnect(id)
So, by passing in the tag returned by one of
the signal connect methods, you can disconnect a signal handler.
How do I find out what the integer tag
is, so that I can put this in my code?
I have tried the pygtk faq page but it
is currently unavailable.
Any help greatly appreciated.
Thanks,
John.
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Re: [Tutor] Button Signals
Liam,
Thanks for the prompt reply. That is working for me.
Regards,
John,
-Original
Message-
From: Liam Clarke
[mailto:[EMAIL PROTECTED]
Sent: 07 May 2006 13:06
To: [EMAIL PROTECTED]
Cc: tutor@python.org
Subject: Re: [Tutor] Button
Signals
Hi John,
I'll answer your questions, but first: Pythoncard is for wxPython. wxPython is
vastly different to PyGTK afaik.
The docs you quote answer your question:
The return
value from a connect () call is an integer tag that
identifies your callback. As stated above, you may have as many callbacks per
signal and per object as you need, and each will be executed in turn, in the
order they were attached.
This tag
allows you to remove this callback from the list by using:
object.disconnect(id)
So, by
passing in the tag returned by one of the signal connect methods, you can
disconnect a signal handler.
Your code needs the following:
self.
callback_id1 = process.connect(clicked, self.callback1, start_date,
process)
def callback1(self,data,start_date,process ):
process.disconnect(self.callback_id1)
On 5/7/06, John CORRY [EMAIL PROTECTED] wrote:
Hi,
I am having difficulty with using signal handlers.
I am using Glade 2 and Pygtk. My editor is Pythoncard. The
following code connects to button one and calls a function which hides button
one.
self.wTree = gtk.glade.XML
(phonelog.glade, window1)
dic={on_window1_destroy : self.quit, }
self.wTree.signal_autoconnect (dic)
process =
self.wTree.get_widget(button1)
process.connect(clicked, self.callback1, start_date, process)
def callback1(self,data,start_date,process ):
process.hide()
The above code works fine. However I want
button one to remain on my GUI. Thus, I want to just stop the signal
being emitted after it is pressed once. I have used the following code
which is trying to disconnect the button one:
self.wTree = gtk.glade.XML
(phonelog.glade, window1)
dic={on_window1_destroy : self.quit, }
self.wTree.signal_autoconnect (dic)
process =
self.wTree.get_widget(button1)
process.connect(clicked, self.callback1, start_date, process)
def callback1(self,data,start_date,process ):
process.disconnect()
When I run this code I get the error
TyoeError: Object takes exactly one argument(0
given)
When I put an argument in, it says that the argument
must be an integer. I have tried a number of integers at random but none
work. On the Pygtk tutorial it states the following:
3.1.More on Signal
Handlers
Lets take
another look at the connect() call.
object.connect(name, func,
func_data)
The return
value from a connect() call is an integer tag that
identifies your callback. As stated above, you may have as many callbacks per
signal and per object as you need, and each will be executed in turn, in the
order they were attached.
This tag
allows you to remove this callback from the list by using:
object.disconnect(id)
So, by
passing in the tag returned by one of the signal connect methods, you can
disconnect a signal handler.
How do I find
out what the integer tag is, so that I can put this in my code?
I have tried
the pygtk faq page but it is currently unavailable.
Any help
greatly appreciated.
Thanks,
John.
___
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Tutor maillist - Tutor@python.org
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