嵌入GTK3 Panzoom

演示通过pygobject访问GTK3的NavigationToolbar。

  1. import gi
  2. gi.require_version('Gtk', '3.0')
  3. from gi.repository import Gtk
  5. from matplotlib.backends.backend_gtk3 import (
  6.     NavigationToolbar2GTK3 as NavigationToolbar)
  7. from matplotlib.backends.backend_gtk3agg import (
  8.     FigureCanvasGTK3Agg as FigureCanvas)
  9. from matplotlib.figure import Figure
  10. import numpy as np
  12. win = Gtk.Window()
  13. win.connect("delete-event", Gtk.main_quit)
  14. win.set_default_size(400, 300)
  15. win.set_title("Embedding in GTK")
  17. f = Figure(figsize=(5, 4), dpi=100)
  18. a = f.add_subplot(1, 1, 1)
  19. t = np.arange(0.0, 3.0, 0.01)
  20. s = np.sin(2*np.pi*t)
  21. a.plot(t, s)
  23. vbox = Gtk.VBox()
  24. win.add(vbox)
  26. # Add canvas to vbox
  27. canvas = FigureCanvas(f)  # a Gtk.DrawingArea
  28. vbox.pack_start(canvas, True, True, 0)
  30. # Create toolbar
  31. toolbar = NavigationToolbar(canvas, win)
  32. vbox.pack_start(toolbar, False, False, 0)
  34. win.show_all()
  35. Gtk.main()

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