def test_bounding_box_calculations(view_fixture):
"""A view created before and after the canvas is populated should contain
the same data.
"""
view_fixture.view.realize()
view_fixture.box.matrix = (1.0, 0.0, 0.0, 1, 10, 10)
line = Line()
line.fuzziness = 1
line.handles()[1].pos = (30, 30)
line.matrix.translate(30, 60)
view_fixture.canvas.add(line)
window2 = Gtk.Window.new(Gtk.WindowType.TOPLEVEL)
view2 = GtkView(canvas=view_fixture.canvas)
window2.add(view2)
window2.show_all()
# Process pending (expose) events, which cause the canvas to be drawn.
while Gtk.events_pending():
Gtk.main_iteration()
try:
assert view2.get_item_bounding_box(view_fixture.box)
assert view_fixture.view.get_item_bounding_box(view_fixture.box)
assert view_fixture.view.get_item_bounding_box(
view_fixture.box) == view2.get_item_bounding_box(
view_fixture.box), ("%s != %s" % (
view_fixture.view.get_item_bounding_box(view_fixture.box),
view2.get_item_bounding_box(view_fixture.box),
))
assert view_fixture.view.get_item_bounding_box(
line) == view2.get_item_bounding_box(line), ("%s != %s" % (
view_fixture.view.get_item_bounding_box(line),
view2.get_item_bounding_box(line),
))
finally:
view_fixture.window.destroy()
window2.destroy()
