def test_draw_scaled_path(self, backend):
p1 = Path((1, 2))
p1.line_to((2, 3))
backend.draw_path(p1, Properties())
f = backend.factor
expected_p2 = p1.transform(Matrix44.scale(f, f, f))
p2 = backend.collector[0][1]
for v1, v2 in zip(p2.control_vertices(),
expected_p2.control_vertices()):
assert v1.isclose(v2)
def test_two_paths_multiple_commands(self):
path_a = Path()
path_a.line_to((1, 0))
path_a.curve3_to((2, 0), (2.5, 1))
path_a.curve4_to((3, 0), (2, 1), (3, 1))
path_b = path_a.transform(Matrix44.translate(4, 0, 0))
result = transform_paths([path_a, path_b], Matrix44())
path0 = result[0]
assert path0[0].type == Command.LINE_TO
assert path0[1].type == Command.CURVE3_TO
assert path0[2].type == Command.CURVE4_TO
assert path0.start == (0, 0)
assert path0.end == (3, 0)
path1 = result[1]
assert path1[0].type == Command.LINE_TO
assert path1[1].type == Command.CURVE3_TO
assert path1[2].type == Command.CURVE4_TO
assert path1.start == (4, 0)
assert path1.end == (7, 0)
def draw_path(self, path: Path, properties: Properties) -> None:
self._backend.draw_path(
path.transform(self._scaling_matrix), properties
)
def test_transformed_path_preserves_user_data():
path = Path()
path.user_data = "data"
path.line_to((1, 2, 3))
assert path.transform(Matrix44()).user_data == "data"
