def test_view_registration(self): canvas = Canvas() # Simple views do not register on the canvas view = View(canvas) assert len(canvas._registered_views) == 0 box = Box() canvas.add(box) # By default no complex updating/calculations are done: assert not box._matrix_i2v.has_key(view) assert not box._matrix_v2i.has_key(view) # GTK view does register for updates though view = GtkView(canvas) assert len(canvas._registered_views) == 1 # No entry, since GtkView is not realized and has no window assert not box._matrix_i2v.has_key(view) assert not box._matrix_v2i.has_key(view) window = gtk.Window(gtk.WINDOW_TOPLEVEL) window.add(view) window.show_all() # Now everything is realized and updated assert box._matrix_i2v.has_key(view) assert box._matrix_v2i.has_key(view) view.canvas = None assert len(canvas._registered_views) == 0 assert not box._matrix_i2v.has_key(view) assert not box._matrix_v2i.has_key(view) view.canvas = canvas assert len(canvas._registered_views) == 1 assert box._matrix_i2v.has_key(view) assert box._matrix_v2i.has_key(view)
def test_view_registration(view_fixture): canvas = Canvas() # Simple views do not register on the canvas view = View(canvas) assert len(canvas._registered_views) == 0 box = Box() canvas.add(box) # By default no complex updating/calculations are done: assert view not in box._matrix_i2v assert view not in box._matrix_v2i # GTK view does register for updates though view = GtkView(canvas) assert len(canvas._registered_views) == 1 # No entry, since GtkView is not realized and has no window assert view not in box._matrix_i2v assert view not in box._matrix_v2i window = Gtk.Window.new(Gtk.WindowType.TOPLEVEL) window.add(view) window.show_all() # Now everything is realized and updated assert view in box._matrix_i2v assert view in box._matrix_v2i view.canvas = None assert len(canvas._registered_views) == 0 assert view not in box._matrix_i2v assert view not in box._matrix_v2i view.canvas = canvas assert len(canvas._registered_views) == 1 assert view in box._matrix_i2v assert view in box._matrix_v2i