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mirror of https://github.com/rsms/inter.git synced 2024-09-19 06:40:16 +03:00
inter/misc/tools/postprocess-designspace.py
2023-06-07 18:03:53 -07:00

279 lines
8.9 KiB
Python

import sys, os, os.path, re, argparse
import defcon
from multiprocessing import Pool
from fontTools.designspaceLib import DesignSpaceDocument
from ufo2ft.filters import loadFilters
from datetime import datetime
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), 'tools')))
from common import getGitHash, getVersion
OPT_EDITABLE = False # --editable
def update_version(ufo):
version = getVersion()
buildtag, buildtagErrs = getGitHash()
now = datetime.utcnow()
if buildtag == "" or len(buildtagErrs) > 0:
buildtag = "src"
print("warning: getGitHash() failed: %r" % buildtagErrs, file=sys.stderr)
versionMajor, versionMinor = [int(num) for num in version.split(".")]
ufo.info.versionMajor = versionMajor
ufo.info.versionMinor = versionMinor
ufo.info.year = now.year
ufo.info.openTypeNameVersion = "Version %d.%03d;git-%s" % (versionMajor, versionMinor, buildtag)
psFamily = re.sub(r'\s', '', ufo.info.familyName)
psStyle = re.sub(r'\s', '', ufo.info.styleName)
#
# id format:
# version ";" "git-" git-tag ";" foundry-tag ";" ps_family "-" ps_style
# E.g.
# "4.001;git-4de559246;RSMS;Inter-DisplayThinItalic"
# Note: this should match what generated by fontmake.
# fix-static-display-names.py depends on this format being consistent for all fonts.
#
if buildtag != "src":
buildtag = "git-" + buildtag
ufo.info.openTypeNameUniqueID = "%d.%03d;%s;%s;%s-%s" % (
versionMajor, versionMinor,
buildtag,
ufo.info.openTypeOS2VendorID,
psFamily, psStyle)
ufo.info.openTypeHeadCreated = now.strftime("%Y/%m/%d %H:%M:%S")
def ufo_set_wws(ufo):
# Fix missing WWS entries for Display fonts:
# See https://github.com/googlefonts/glyphsLib/issues/820
subfamily = ufo.info.styleName
if subfamily.find("Display") == -1:
return
subfamily = subfamily[len("Display"):].strip()
if subfamily == "":
# "Display" -> "Regular"
subfamily = "Regular"
ufo.info.openTypeNameWWSFamilyName = "Inter Display"
ufo.info.openTypeNameWWSSubfamilyName = subfamily
def fix_opsz_range(designspace):
opsz_min = 1000000
opsz_max = 0
opsz_name = ''
opsz_axis = None
for opsz_axis in designspace.axes:
if opsz_axis.tag == "opsz":
opsz_name = opsz_axis.name
break
for instance in designspace.instances:
opsz_value = instance.location[opsz_name]
if opsz_value < opsz_min:
opsz_min = opsz_value
if opsz_value > opsz_max:
opsz_max = opsz_value
opsz_axis.minimum = opsz_min
opsz_axis.maximum = opsz_max
return designspace
def fix_wght_range(designspace):
for a in designspace.axes:
if a.tag == "wght":
a.minimum = 100
a.maximum = 900
break
return designspace
def should_decompose_glyph(g):
if not g.components or len(g.components) == 0:
return False
# Does the component have non-trivial transformation? (i.e. scaled or skewed)
# Example of no transformation: (identity matrix)
# (1, 0, 0, 1, 0, 0) no scale or offset
# Example of simple offset transformation matrix:
# (1, 0, 0, 1, 20, 30) 20 x offset, 30 y offset
# Example of scaled transformation matrix:
# (-1.0, 0, 0.3311, 1, 1464.0, 0) flipped x axis, sheered and offset
# Matrix order:
# (x_scale, x_skew, y_skew, y_scale, x_offs, y_offs)
for cn in g.components:
# if g.name == 'dotmacron.lc':
# print(f"{g.name} cn {cn.baseGlyph}", cn.transformation)
# Check if transformation is not identity (ignoring x & y offset)
m = cn.transformation
if m[0] + m[1] + m[2] + m[3] != 2.0:
return True
return False
def copy_component_anchors(font, g):
# do nothing if there are no components or if g has anchors already
if not g.components or len(g.anchors) > 0:
return
anchor_names = set()
for cn in g.components:
if cn.transformation[1] != 0.0 or cn.transformation[2] != 0.0:
print(f"TODO: support transformations with skew ({g.name})")
return
cn_g = font[cn.baseGlyph]
# copy_component_anchors(font, cn_g) # depth first
for a in cn_g.anchors:
# Check if there are multiple components with achors with the same name.
# Don't copy any anchors if there are duplicate "_..." anchors
if a.name in anchor_names and len(a.name) > 1 and a.name[0] == '_':
return
anchor_names.add(a.name)
if len(anchor_names) == 0:
return
anchor_names.clear()
for cn in g.components:
for a in font[cn.baseGlyph].anchors:
if a.name in anchor_names:
continue
anchor_names.add(a.name)
a2 = defcon.Anchor(glyph=g, anchorDict=a.copy())
m = cn.transformation # (x_scale, x_skew, y_skew, y_scale, x_offs, y_offs)
a2.x += m[4] * m[0]
a2.y += m[5] * m[3]
g.appendAnchor(a2)
def copy_anchors_from_components(font, g):
# We use two passes here, to deduplicate anchors which appear in several components.
# Two assumptions are made:
# 1. Insertion order of Python dict() is retained (true for Python >=3.7)
# 2. Base components are listed first, mark/accent comonents later.
# e.g. in /Ecircumflex, /E comes before /circumflexcomb, so we use "top"
# anchor from /circumflexcomb rather than /E
# skip certain glyphs
if len(g.unicodes) == 0 or len(g.anchors) > 0 or not g.components:
return
add_anchors = dict()
names_to_copy = set(('top', 'bottom'))
for cn in g.components:
checked_cn_skew = False
#print(f" [{g.name}] cn {cn.baseGlyph}")
cn_g = font[cn.baseGlyph]
copy_anchors_from_components(font, cn_g) # depth first
for a in cn_g.anchors:
if a.name not in names_to_copy:
continue
#print(f" [{g.name}] use anchor {a.name}")
m = cn.transformation # (x_scale, x_skew, y_skew, y_scale, x_offs, y_offs)
if not checked_cn_skew:
checked_cn_skew = True
if m[1] != 0.0 or m[2] != 0.0:
#print(f"TODO: skewed components ({cn_g.name} used by {g.name})")
return
a2 = defcon.Anchor(glyph=g, anchorDict=a.copy())
a2.x += m[4] * m[0]
a2.y += m[5] * m[3]
add_anchors[a.name] = a2
for a in add_anchors.values():
#print(f" [{g.name}] append anchor {a.name}")
g.appendAnchor(a)
def find_glyphs_to_decompose(designspace_source):
glyph_names = set()
# print("find_glyphs_to_decompose inspecting %r" % designspace_source.name)
font = defcon.Font(designspace_source.path)
for g in font:
# copy_anchors_from_components(font, g)
if should_decompose_glyph(g):
glyph_names.add(g.name)
font.save(designspace_source.path)
return list(glyph_names)
def set_ufo_filter(ufo, **filter_dict):
filters = ufo.lib.setdefault("com.github.googlei18n.ufo2ft.filters", [])
for i in range(len(filters)):
if filters[i].get("name") == filter_dict["name"]:
filters[i] = filter_dict
return
filters.append(filter_dict)
def del_ufo_filter(ufo, name):
filters = ufo.lib.get("com.github.googlei18n.ufo2ft.filters")
if not filters:
return
for i in range(len(filters)):
if filters[i].get("name") == name:
filters.pop(i)
return
def update_source_ufo(ufo_file, glyphs_to_decompose):
print(f"update {os.path.basename(ufo_file)}")
ufo = defcon.Font(ufo_file)
update_version(ufo)
set_ufo_filter(ufo, name="decomposeComponents", include=glyphs_to_decompose)
# decompose now, up front, instead of later when compiling fonts
if not OPT_EDITABLE:
preFilters, postFilters = loadFilters(ufo)
for filter in preFilters:
filter(ufo)
for filter in postFilters:
filter(ufo)
# del_ufo_filter(ufo, "decomposeComponents")
del ufo.lib["com.github.googlei18n.ufo2ft.filters"]
ufo_set_wws(ufo) # Fix missing WWS entries for Display fonts
ufo.save(ufo_file)
def update_sources(designspace):
with Pool() as p:
sources = [source for source in designspace.sources]
# sources = [s for s in sources if s.name == "Inter Thin"] # DEBUG
glyphs_to_decompose = set()
for glyph_names in p.map(find_glyphs_to_decompose, sources):
glyphs_to_decompose.update(glyph_names)
glyphs_to_decompose = list(glyphs_to_decompose)
# print("glyphs marked to be decomposed: %s" % ', '.join(glyphs_to_decompose))
source_files = list(set([s.path for s in sources]))
p.starmap(update_source_ufo, [(path, glyphs_to_decompose) for path in source_files])
return designspace
def main(argv):
ap = argparse.ArgumentParser(description=
'Fixup designspace and source UFOs after they are generated by fontmake from Glyphs source')
ap.add_argument('--editable', action='store_true',
help="Generate UFOs suitable for further editing (don't apply filters)")
ap.add_argument("designspace", help="Path to designspace file")
args = ap.parse_args()
OPT_EDITABLE = args.editable
designspace = DesignSpaceDocument.fromfile(args.designspace)
designspace = fix_opsz_range(designspace)
designspace = fix_wght_range(designspace)
designspace = update_sources(designspace)
designspace.write(args.designspace)
if __name__ == '__main__':
main(sys.argv)