def __missing__(self, U):
F = Counter(U)
# iterate through stack
projection = Textstyle.BASE.copy()
for TS in (TS for TS, tags in self._P if tags <= F):
projection.update(TS)
# set up fonts
upem, hb_face, projection['__hb_font__'], projection['font'] = get_ot_font(projection['path'])
projection['__factor__'] = projection['fontsize']/upem
projection['__gridfont__'] = Grid_font(projection['__hb_font__'], upem)
self[U] = projection
return projection
def project_t(self, BLOCK, F, CHAR_STYLES):
if BLOCK.implicit_ is None:
P = BLOCK["class"]
else:
P = BLOCK["class"] + BLOCK.implicit_
H = 22 * hash(frozenset(P.items())) + hash(
frozenset(F.items())
) # we must give paragraph a different factor if a style has the same name as a fontstyle
if CHAR_STYLES:
H += 13 * sum(fp.stylehash for fp in CHAR_STYLES)
try:
return self.text_projections[H]
except KeyError:
# iterate through stack
projection = _Layer(self._text_default)
iter_blockstyles = (b.content for b in self.content if b.content is not None and b["class"] <= P)
for TS in chain(
(
c["textstyle"]
for c in chain.from_iterable(iter_blockstyles)
if c["textstyle"] is not None and c["class"] <= F
),
CHAR_STYLES,
):
projection.overlay(TS)
# text font
try:
upem, hb_face, projection["__hb_font__"], projection["font"] = get_ot_font(projection["path"])
except FileNotFoundError:
path = Textstyle.BASE["path"]
projection["color"] = (1, 0.15, 0.2, 1)
upem, hb_face, projection["__hb_font__"], projection["font"] = get_ot_font(path)
projection["__factor__"] = factor = projection["fontsize"] / upem
hmetrics = hb.font_get_h_extents(projection["__hb_font__"])[1]
projection["__fontmetrics__"] = (
hmetrics.ascender * factor + projection["shift"],
hmetrics.descender * factor + projection["shift"],
)
projection["__spacemetrics__"] = get_ot_space_metrics(
projection["__hb_font__"], projection["fontsize"], factor
)
# emoji font
try:
e_upem, projection["__hb_emoji__"], projection["__emoji__"] = get_emoji_font(projection["path_emoji"])
except FileNotFoundError:
e_upem, projection["__hb_emoji__"], projection["__emoji__"] = get_emoji_font(
Textstyle.BASE["path_emoji"]
)
projection["__factor_emoji__"] = projection["fontsize"] / e_upem
###
# opentype features
projection["__ot_features__"] = [
feature_map[feature][mode == 1] if mode < 2 else feature_map[feature][2][mode]
for mode, feature in ((projection[feature], feature) for feature in common_features)
if mode
]
projection["hash"] = H
self.text_projections[H] = projection
return projection
def project_t(self, BLOCK, F, CHAR_STYLES):
if BLOCK.implicit_ is None:
P = BLOCK['class']
else:
P = BLOCK['class'] + BLOCK.implicit_
H = 22 * hash(frozenset(P.items())) + hash(
frozenset(F.items())
) # we must give paragraph a different factor if a style has the same name as a fontstyle
if CHAR_STYLES:
H += 13 * sum(fp.stylehash for fp in CHAR_STYLES)
try:
return self.text_projections[H]
except KeyError:
# iterate through stack
projection = _Layer(self._text_default)
iter_blockstyles = (b.content for b in self.content
if b.content is not None and b['class'] <= P)
for TS in chain(
(c['textstyle'] for c in chain.from_iterable(iter_blockstyles)
if c['textstyle'] is not None and c['class'] <= F),
CHAR_STYLES):
projection.overlay(TS)
# text font
try:
upem, hb_face, projection['__hb_font__'], projection[
'font'] = get_ot_font(projection['path'])
except FileNotFoundError:
path = Textstyle.BASE['path']
projection['color'] = (1, 0.15, 0.2, 1)
upem, hb_face, projection['__hb_font__'], projection[
'font'] = get_ot_font(path)
projection['__factor__'] = factor = projection['fontsize'] / upem
hmetrics = hb.font_get_h_extents(projection['__hb_font__'])[1]
projection[
'__fontmetrics__'] = hmetrics.ascender * factor + projection[
'shift'], hmetrics.descender * factor + projection['shift']
projection['__spacemetrics__'] = get_ot_space_metrics(
projection['__hb_font__'], projection['fontsize'], factor)
# emoji font
try:
e_upem, projection['__hb_emoji__'], projection[
'__emoji__'] = get_emoji_font(projection['path_emoji'])
except FileNotFoundError:
e_upem, projection['__hb_emoji__'], projection[
'__emoji__'] = get_emoji_font(Textstyle.BASE['path_emoji'])
projection['__factor_emoji__'] = projection['fontsize'] / e_upem
###
# opentype features
projection['__ot_features__'] = [
feature_map[feature][mode == 1]
if mode < 2 else feature_map[feature][2][mode]
for mode, feature in ((projection[feature], feature)
for feature in common_features) if mode
]
projection['hash'] = H
self.text_projections[H] = projection
return projection
