def image_size(image_path: str, from_context: str) -> (int, int):
""" Return the size specified by the context of an image field. """
explicit_width = None
# get each size specification separately (removing blanks)
size_components = list(filter(None, from_context.split('x')))
if len(size_components) > 0:
width_specification = size_components[0]
try:
explicit_width = int(width_specification)
except ValueError:
explicit_width = None
WarningDisplay.unknown_size_specification(
WarningContext(image_path), from_context)
else:
if explicit_width < 0:
WarningDisplay.invalid_width_specification(
WarningContext(image_path), explicit_width)
explicit_width = None
if len(size_components) > 1:
height_specification = size_components[1]
try:
explicit_height = int(height_specification)
except ValueError:
explicit_height = None
WarningDisplay.unknown_size_specification(
WarningContext(image_path), from_context)
else:
if explicit_height < 0:
WarningDisplay.invalid_height_specification(
WarningContext(image_path), explicit_height)
explicit_height = None
else:
# default to a squared size using the width specification
explicit_height = explicit_width
return explicit_width, explicit_height
def image_size(image_path: str, from_context: str) -> (int, int):
""" Return the size specified by the context of an image field. """
explicit_width = None
# get each size specification separately (removing blanks)
size_components = list(filter(None, from_context.split('x')))
if len(size_components) > 0:
width_specification = size_components[0]
try:
explicit_width = int(width_specification)
except ValueError:
explicit_width = None
WarningDisplay.unknown_size_specification(
WarningContext(image_path), from_context)
else:
if explicit_width < 0:
WarningDisplay.invalid_width_specification(
WarningContext(image_path), explicit_width)
explicit_width = None
if len(size_components) > 1:
height_specification = size_components[1]
try:
explicit_height = int(height_specification)
except ValueError:
explicit_height = None
WarningDisplay.unknown_size_specification(
WarningContext(image_path), from_context)
else:
if explicit_height < 0:
WarningDisplay.invalid_height_specification(
WarningContext(image_path), explicit_height)
explicit_height = None
else:
# default to a squared size using the width specification
explicit_height = explicit_width
return explicit_width, explicit_height
