Hello everyone,
so I've run into a bit of a problem while embedding a matplotlib plot
into a GTK3 application. Everything's working fine as always, except
the scroll_event seems to get stuck somewhere and my callback is never
called. The button_press_event works.
Apologies in advance if I missed something, but something somewhere
doesn't seem to be quite right. Please let me know if I need to file a
bug report?
Minimal example to demonstrate the problem: [1]
With pyplot it works just fine: [2]
Regards,
Patrick
[1] GTK3Agg minimal example
from gi.repository import Gtk, Gdk
from matplotlib.figure import Figure
from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigCanvas
def on_press(canvas, event):
print "press!"
def on_scroll(canvas, event):
print "scroll!"
window = Gtk.Window()
window.connect("delete-event", Gtk.main_quit)
figure = Figure(figsize=(5,4), dpi=100)
plot = figure.add_subplot(111)
plot.plot([0,0.5,2])
canvas = FigCanvas(figure)
canvas.connect('button_press_event', on_press)
canvas.connect('scroll_event', on_scroll)
window.add(canvas)
window.show_all()
Gtk.main()
[2] pyplot minimal example
import matplotlib.pyplot as plt
plt.plot([0,0.5,2])
fig = plt.gcf()
def on_click(event):
print "press!"
def on_scroll(event):
print "scroll!"
fig.canvas.mpl_connect('button_press_event', on_click)
fig.canvas.mpl_connect('scroll_event', on_scroll)
plt.show()
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