def test_script_device():
dev = cairo.ScriptDevice(io.BytesIO())
assert dev
assert issubclass(cairo.ScriptDevice, cairo.Device)
assert isinstance(dev, cairo.ScriptDevice)
with pytest.raises(TypeError):
cairo.ScriptDevice(None)
def test_script_device_to_path():
fd, fname = tempfile.mkstemp()
os.close(fd)
try:
cairo.ScriptDevice(fname).finish()
finally:
os.unlink(fname)
def test_script_device_device_ref():
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
surface = cairo.ScriptSurface(dev, cairo.Content.COLOR_ALPHA, 42, 10)
del dev
for i in range(10):
surface.get_device()
def test_cmp_hash():
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
surface = cairo.ScriptSurface(dev, cairo.Content.COLOR_ALPHA, 42, 10)
other = surface.get_device()
assert dev == other
assert not dev != other
assert hash(dev) == hash(other)
def test_script_device_write_comment():
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
dev.write_comment("pycairo foo")
dev.write_comment(u"pycairo bar")
dev.flush()
assert b"pycairo foo" in f.getvalue()
assert b"pycairo bar" in f.getvalue()
def test_context_manager():
f = io.BytesIO()
with cairo.ScriptDevice(f) as dev:
dev.acquire()
dev.release()
with pytest.raises(cairo.Error) as excinfo:
dev.acquire()
assert excinfo.value.status == cairo.Status.DEVICE_FINISHED
def test_script_surface():
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
surface = cairo.ScriptSurface(dev, cairo.Content.COLOR_ALPHA, 42, 10)
assert isinstance(surface, cairo.ScriptSurface)
cairo.Context(surface).paint()
dev.flush()
assert b"42" in f.getvalue()
assert b"paint" in f.getvalue()
def test_script_device_write_comment():
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
dev.write_comment("pycairo foo")
dev.write_comment(u"pycairo bar")
dev.flush()
assert b"pycairo foo" in f.getvalue()
assert b"pycairo bar" in f.getvalue()
with pytest.raises(TypeError):
dev.write_comment(object())
def test_script_device_mode():
assert hasattr(cairo, "ScriptMode")
assert cairo.ScriptMode.ASCII != cairo.ScriptMode.BINARY
dev = cairo.ScriptDevice(io.BytesIO())
mode = dev.get_mode()
assert isinstance(mode, cairo.ScriptMode)
assert mode == cairo.ScriptMode.ASCII
dev.set_mode(cairo.ScriptMode.BINARY)
assert dev.get_mode() == cairo.ScriptMode.BINARY
def test_script_surface_create_for_target():
# paint the script proxy
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
script = cairo.ScriptSurface.create_for_target(dev, surface)
assert isinstance(script, cairo.ScriptSurface)
ctx = cairo.Context(script)
ctx.set_source_rgb(0.25, 0.5, 1.0)
ctx.paint()
assert b"paint" in f.getvalue()
surface.flush()
image_data = bytes(surface.get_data())
# check if the result is the same
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
ctx = cairo.Context(surface)
ctx.set_source_rgb(0.25, 0.5, 1.0)
ctx.paint()
surface.flush()
assert bytes(surface.get_data()) == image_data
def test_from_recording_surface():
s = cairo.RecordingSurface(cairo.CONTENT_COLOR, None)
ctx = cairo.Context(s)
ctx.paint()
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
dev.from_recording_surface(s)
dev.flush()
assert b"paint" in f.getvalue()
# already finished
dev.finish()
with pytest.raises(cairo.Error):
dev.from_recording_surface(s)
# only recording surfaces allowed
image = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
with pytest.raises(TypeError):
dev.from_recording_surface(image)
# No None allowed
with pytest.raises(TypeError):
dev.from_recording_surface(None)
def test_device_acquire():
f = io.BytesIO()
dev = cairo.ScriptDevice(f)
dev.acquire()
dev.release()
