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

[Federico A. <ari...@gm...>]

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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>
>
>
>
> --
> 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 --