def after_view_init(self) -> None:
from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo
from matplotlib.figure import Figure
figure = Figure(tight_layout=True)
self.canvas = FigureCanvasGTK3Cairo(figure)
self.canvas_mapped = False
self.figure_stale = True
self.queue_draw_canvas_source_id = None
self.canvas.connect('map', self.canvas_map)
self.canvas.connect('unmap', self.canvas_unmap)
self.axes = figure.add_subplot(1, 1, 1)
# Set tick labels font size
for item in (*self.axes.get_xticklabels(),
*self.axes.get_yticklabels()):
item.set_fontsize(8)
self.canvas.show()
self.host.add(self.canvas)
