Re: [matplotlib-devel] Gtk3 app that calls matplotlib

[Thomas A C. <tca...@uc...>]

embedding vs launching is a distinction without a difference, you are
integrating matplotlib with your own gui application.

That said, it would be nice to re-factor the figure_manager classes so they
they make no reference to `Gcf` or anything associated with pylab and could
be easily re-used.

I think that would also help with the issues in
https://github.com/matplotlib/matplotlib/pull/2503

Tom


On Fri, Oct 11, 2013 at 12:14 PM, Federico Ariza
<ari...@gm...>wrote:

> Again
>
> In the example the plotting is inside the callback (just for
> simplicity), but in reality, the plotting is in another class,
> somewhere else that can be called standalone to produce the plots.
>
> Federico
>
> On Fri, Oct 11, 2013 at 1:12 PM, Federico Ariza
> <ari...@gm...> wrote:
> > I am not embedding, just launching, as the example shows.
> >
> > Federico
> >
> > On Fri, Oct 11, 2013 at 1:11 PM, Thomas A Caswell <tca...@uc...>
> wrote:
> >> If you are embedding matplotlib, do not import `pyplot`.  `pyplot` sets
> up a
> >> bunch of gui-magic (tm) in the background (as you found in
> >> `figure_manager`).
> >>
> >> Tom
> >>
> >>
> >> On Fri, Oct 11, 2013 at 11:57 AM, Federico Ariza <
> ari...@gm...>
> >> wrote:
> >>>
> >>> Hello everybody
> >>>
> >>> Working on one GTK3 app, that calls matplotlib to plot some figures, I
> >>> found that closing all the figures from matplotlib kills my app also.
> >>> The problem....
> >>>
> >>> Gtk.main() is called only if there is no previous invocation, in my
> >>> case, my Gtk3 app invokes main, so the mainloop won't call it again.
> >>>
> >>> #in backend_gtk3.py
> >>> #
> >>> class Show(ShowBase):
> >>>     def mainloop(self):
> >>>         if Gtk.main_level() == 0:
> >>>             Gtk.main()
> >>>
> >>> But in the "destroy" method of the figure manager calls Gtk.main_quit
> >>> everytime that there are no more figures
> >>>
> >>> #in backend_gtk3.py inside destroy method of FigureManagerGTK3
> >>> #
> >>> if Gcf.get_num_fig_managers()==0 and \
> >>>                not matplotlib.is_interactive() and \
> >>>                Gtk.main_level() >= 1:
> >>>             Gtk.main_quit()
> >>>
> >>>
> >>> So basically we are not calling Gtk.main but we are Gtk.calling
> main_quit.
> >>> Isn't it more natural to call Gtk.main the same amount of times that
> >>> we are going to call Gtk.main_quit?
> >>>
> >>> Adding matplotlib.rcParams['interactive'] = True doesn't help
> >>>
> >>> Here is my little testing code
> >>>
> >>> ##############################
> >>> #file myapp.py
> >>>
> >>> import matplotlib
> >>> matplotlib.rcParams['interactive'] = True
> >>> matplotlib.use('GTK3AGG')
> >>> import matplotlib.pyplot as plt
> >>>
> >>> from gi.repository import Gtk
> >>>
> >>> class MyWindow(Gtk.Window):
> >>>
> >>>     def __init__(self):
> >>>         Gtk.Window.__init__(self, title="Hello World")
> >>>
> >>>         self.button = Gtk.Button(label="Click Here")
> >>>         self.button.connect("clicked", self.on_button_clicked)
> >>>         self.add(self.button)
> >>>
> >>>     def on_button_clicked(self, widget):
> >>>         fig = plt.figure()
> >>>         ax = fig.add_subplot(111)
> >>>         ax.plot([1,2,3])
> >>>         plt.show()
> >>>
> >>> win = MyWindow()
> >>> win.connect("delete-event", Gtk.main_quit)
> >>> win.show_all()
> >>> Gtk.main()
> >>> #########################
> >>>
> >>> I know this is related to interactive mode, but running from console
> >>> >>> python myapp.py
> >>> reproduces the problem
> >>>
> >>> Why hasattr(sys, 'ps1') is False? if I am running it from console? how
> >>> do I change this?
> >>>
> >>>
> >>> Thanks
> >>> Federico
> >>>
> >>> P.S. Does anybody had the time to check my PR for multi-figure-manager?
> >>> https://github.com/matplotlib/matplotlib/pull/2465
> >>>
> >>> --
> >>> Y yo que culpa tengo de que ellas se crean todo lo que yo les digo?
> >>>
> >>> -- Antonio Alducin --
> >>>
> >>>
> >>>
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> >>> _______________________________________________
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> >>> Mat...@li...
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> >>
> >>
> >>
> >>
> >> --
> >> Thomas A Caswell
> >> PhD Candidate University of Chicago
> >> Nagel and Gardel labs
> >> tca...@uc...
> >> jfi.uchicago.edu/~tcaswell
> >> o: 773.702.7204
> >
> >
> >
> > --
> > Y yo que culpa tengo de que ellas se crean todo lo que yo les digo?
> >
> > -- Antonio Alducin --
>
>
>
> --
> Y yo que culpa tengo de que ellas se crean todo lo que yo les digo?
>
> -- Antonio Alducin --
>



-- 
Thomas A Caswell
PhD Candidate University of Chicago
Nagel and Gardel labs
tca...@uc...
jfi.uchicago.edu/~tcaswell
o: 773.702.7204