Re: gtk3 + python : lookup_widget

[Tristan Van Berkom <tvb gnome org>]

On Mon, Aug 20, 2012 at 1:59 PM, Tristan Van Berkom <tvb gnome org> wrote:
>    The "lookup_widget()" paradigm comes from a very old time when we
> had very poor tools and actually it originates from people using generated code from
> the original Glade tool (Glade versions 1 and 2).

Correction, that didnt sound the way I intended, The original Glade was a great
tool for its time... what I mean to say is that back then our coding
practices were
very poor and we've made much improvements since then.

> Ideally, as specially as you are using python, your application should
> be modular.
>
> Perhaps you have an Application object which owns the main widgetry created
> by GtkBuilder after having parsed a Glade file initially, this is
> different from a global
> variable.
>
> Ideally you can use you object constructor as an entry point to load
> your GtkBuilder
> and assign the pointers you need later on to the members you define on your
> Application object.
>
> After that you simply have to pass your Application object to all the callbacks
> which originate from the user interface, giving you access to everything you
> need when you need it.
>
> This concept can be further extended to be more modular, for instance if
> you have a preferences dialog/window... it can be defined by a separate
> python class/GtkBuilder file and reused at will throughout your program.
>
> Cheers,
>                  -Tristan
>
> On Mon, Aug 20, 2012 at 1:10 PM, Patrick Shirkey
> <pshirkey boosthardware com> wrote:
> > Hi,
> >
> > I'm having a little trouble finding examples online of using the
> > equivalent of lookup_widget() with gtk3 + python.
> >
> > For example in the following code what is the best way to modify the
> > "message" label after the "commandline" callback is sent?
> >
> > Should I be using globals or a glade file or is there a way to dynamically
> > lookup the "message" widget ?
> >
> >
> >
> > def create_gtkEntry():
> >
> >     commandline = Gtk.Entry()
> >     commandline.connect("activate", command_entered, 1)
> >
> >     messages = Gtk.Label('TEST')
> >
> >
> >
> > def command_entered(self, *args):
> >
> >     cmi_command = self.get_text()
> >     messages.set_text(cmi_command)
> >     print "command entered: ", args[0]
> >
> >
> >
> > --
> > Patrick Shirkey
> > Boost Hardware Ltd
> > _______________________________________________
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> > gtk-app-devel-list gnome org
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