def test_image(self):
image = pyvips.Image.new_from_file(JPEG_FILE)
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.image_type)
gv.set(image)
value = gv.get()
self.assertEqual(value, image)
def test_array_image(self):
image = pyvips.Image.new_from_file(JPEG_FILE)
r, g, b = image.bandsplit()
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.array_image_type)
gv.set([r, g, b])
value = gv.get()
self.assertEqual(value, [r, g, b])
def test_blob(self):
with open(JPEG_FILE, 'rb') as f:
blob = f.read()
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.blob_type)
gv.set(blob)
value = gv.get()
self.assertEqual(value, blob)
def test_bool(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gbool_type)
gv.set(True)
value = gv.get()
self.assertEqual(value, True)
gv.set(False)
value = gv.get()
self.assertEqual(value, False)
def test_bool(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gbool_type)
gv.set(True)
value = gv.get()
assert value
gv.set(False)
value = gv.get()
assert not value
def test_flags(self):
# the OperationFlags enum is created when the first op is made --
# make it ourselves in case we are run before that
pyvips.vips_lib.vips_operation_flags_get_type()
operationflags_gtype = pyvips.gobject_lib. \
g_type_from_name(b'VipsOperationFlags')
gv = pyvips.GValue()
gv.set_type(operationflags_gtype)
gv.set(12)
value = gv.get()
self.assertEqual(value, 12)
def test_enum(self):
# the Interpretation enum is created when the first image is made --
# make it ourselves in case we are run before the first image
pyvips.vips_lib.vips_interpretation_get_type()
interpretation_gtype = pyvips.gobject_lib. \
g_type_from_name(b'VipsInterpretation')
gv = pyvips.GValue()
gv.set_type(interpretation_gtype)
gv.set('xyz')
value = gv.get()
self.assertEqual(value, 'xyz')
def set(self, name, value):
"""Set a GObject property.
The value is converted to the property type, if possible.
"""
logger.debug('VipsObject.set: name = %s, value = %s', name, value)
gtype = self.get_typeof(name)
gv = pyvips.GValue()
gv.set_type(gtype)
gv.set(value)
go = ffi.cast('GObject *', self.pointer)
gobject_lib.g_object_set_property(go, _to_bytes(name), gv.pointer)
def get(self, name):
"""Get a GObject property.
The value of the property is converted to a Python value.
"""
logger.debug('VipsObject.get: name = %s', name)
pspec = self._get_pspec(name)
if pspec is None:
raise Error('Property not found.')
gtype = pspec.value_type
gv = pyvips.GValue()
gv.set_type(gtype)
go = ffi.cast('GObject *', self.pointer)
gobject_lib.g_object_get_property(go, _to_bytes(name), gv.pointer)
return gv.get()
def test_int(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gint_type)
gv.set(12)
value = gv.get()
self.assertEqual(value, 12)
def test_array_double(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.array_double_type)
gv.set([1.1, 2.1, 3.1])
value = gv.get()
self.assertAlmostEqualObjects(value, [1.1, 2.1, 3.1])
def test_array_int(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.array_int_type)
gv.set([1, 2, 3])
value = gv.get()
self.assertAlmostEqualObjects(value, [1, 2, 3])
def test_string(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gstr_type)
gv.set('banana')
value = gv.get()
self.assertEqual(value, 'banana')
def test_int(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gint_type)
gv.set(12)
value = gv.get()
assert value == 12
def test_array_int(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.array_int_type)
gv.set([1, 2, 3])
value = gv.get()
assert_almost_equal_objects(value, [1, 2, 3])
def test_string(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gstr_type)
gv.set('banana')
value = gv.get()
assert value == 'banana'
def test_double(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gdouble_type)
gv.set(3.1415)
value = gv.get()
assert value == 3.1415
def test_double(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.gdouble_type)
gv.set(3.1415)
value = gv.get()
self.assertEqual(value, 3.1415)
def test_uint64(self):
gv = pyvips.GValue()
gv.set_type(pyvips.GValue.guint64_type)
gv.set(2 ** 64 - 1) # G_MAXUINT64
value = gv.get()
assert value == 2 ** 64 - 1
