def main():
font_file = barcode_wheel.get_font_file()
font_blob = HarfBuzz.glib_blob_create(GLib.Bytes.new(font_file.read_bytes()))
face = HarfBuzz.face_create(font_blob, 0)
del font_blob
font = HarfBuzz.font_create(face)
upem = HarfBuzz.face_get_upem(face)
del face
HarfBuzz.font_set_scale(font, upem, upem)
text = sys.argv[1]
HarfBuzz.ot_font_set_funcs(font)
buf = HarfBuzz.buffer_create()
HarfBuzz.buffer_set_message_func(
buf,
# lambda *args: [print(x) for x in args] and True,
lambda *args: True,
1,
0,
)
if False:
HarfBuzz.buffer_add_utf8(buf, text.encode("utf-8"), 0, -1)
elif sys.maxunicode == 0x10FFFF:
HarfBuzz.buffer_add_utf32(
buf, array.array("I", text.encode("utf-32"))[1:], 0, -1
)
else:
HarfBuzz.buffer_add_utf16(
buf, array.array("H", text.encode("utf-16"))[1:], 0, -1
)
HarfBuzz.buffer_guess_segment_properties(buf)
HarfBuzz.shape(font, buf, [])
del font
infos = HarfBuzz.buffer_get_glyph_infos(buf)
positions = HarfBuzz.buffer_get_glyph_positions(buf)
for info, pos in zip(infos, positions):
gid = info.codepoint
cluster = info.cluster
print(f"gid {gid} = {cluster} @ {pos.x_advance}, {pos.x_offset}+{pos.y_offset}")
del face
hb.font_set_scale(font, upem, upem)
#hb.ft_font_set_funcs (font)
hb.ot_font_set_funcs(font)
buf = hb.buffer_create()
class Debugger(object):
def message(self, buf, font, msg, data, _x_what_is_this):
print(msg)
return True
debugger = Debugger()
hb.buffer_set_message_func(buf, debugger.message, 1, 0)
##
## Add text to buffer
##
#
# See https://github.com/harfbuzz/harfbuzz/pull/271
#
if False:
# If you do not care about cluster values reflecting Python
# string indices, then this is quickest way to add text to
# buffer:
hb.buffer_add_utf8(buf, text.encode('utf-8'), 0, -1)
# Otherwise, then following handles both narrow and wide
# Python builds:
elif sys.maxunicode == 0x10FFFF:
face = hb.face_create (blob, 0)
del blob
font = hb.font_create (face)
upem = hb.face_get_upem (face)
del face
hb.font_set_scale (font, upem, upem)
#hb.ft_font_set_funcs (font)
hb.ot_font_set_funcs (font)
buf = hb.buffer_create ()
class Debugger(object):
def message (self, buf, font, msg, data, _x_what_is_this):
print(msg)
return True
debugger = Debugger()
hb.buffer_set_message_func (buf, debugger.message, 1, 0)
##
## Add text to buffer
##
#
# See https://github.com/harfbuzz/harfbuzz/pull/271
#
if False:
# If you do not care about cluster values reflecting Python
# string indices, then this is quickest way to add text to
# buffer:
hb.buffer_add_utf8 (buf, text.encode('utf-8'), 0, -1)
# Otherwise, then following handles both narrow and wide
# Python builds:
elif sys.maxunicode == 0x10FFFF:
