def get_advances(self, text, font):
"""Get a list of horizontal advances for text rendered in a font."""
try:
return self.advance_cache[(text, font)]
except KeyError:
hb_output = render.run_harfbuzz_on_text(text, font, '')
hb_output = json.loads(hb_output)
advances = [glyph['ax'] for glyph in hb_output]
self.advance_cache[(text, font)] = advances
return advances
def _run_harfbuzz(text, font, language, extra_parameters=None):
"""Run harfbuzz on some text and return the shaped list."""
try:
# if extra_parameters is a string, split it into a list
extra_parameters = extra_parameters.split(' ')
except AttributeError:
pass
hb_output = render.run_harfbuzz_on_text(
text, font, language, extra_parameters)
return json.loads(hb_output)
def _run_harfbuzz(text, font, language, extra_parameters=None):
"""Run harfbuzz on some text and return the shaped list."""
try:
# if extra_parameters is a string, split it into a list
extra_parameters = extra_parameters.split(' ')
except AttributeError:
pass
hb_output = render.run_harfbuzz_on_text(text, font, language,
extra_parameters)
return json.loads(hb_output)
def get_advances(self, text, font):
"""Get a list of horizontal advances for text rendered in a font."""
try:
return self.advance_cache[(text, font)]
except KeyError:
hb_output = render.run_harfbuzz_on_text(text, font, '')
hb_output = json.loads(hb_output)
advances = [glyph['ax'] for glyph in hb_output]
self.advance_cache[(text, font)] = advances
return advances
