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nerd-fonts/font-patcher
Fini Jastrow 983226a70e font-patcher: Fix scaleGlyph related rounding error 
[why]
Sometimes the patched-in symbols are slightly too big, which shows up in
Nerd Font Mono fonts where the destination size is specified exactly.

That issues a warning like:
  Warning: Scaled glyph U+F077 wider than one monospace width

[how]
For the scaleGlyph groups we need to combine the bounding boxes of
several symbol glyphs to determine the 'combined' scale we need.
Unfortunately when the concrete glyph is finally copied over its size
can change minimally.

So we need to measure the glyphs in the scaleGroup _after_ they have
been copied to the to-be-patched font. This is a bit complicated,
because we need to know some glyph slot we can use for that.

[note]
See also commit
  e805b879  font-patcher: Resolve rounding error when rescaling

Fixes: #917

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>
2022-09-08 20:08:44 +02:00

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#!/usr/bin/env python
# coding=utf8
# Nerd Fonts Version: 2.2.2
# Script version is further down
from __future__ import absolute_import, print_function, unicode_literals
# Change the script version when you edit this script:
script_version = "3.0.5"
version = "2.2.2"
projectName = "Nerd Fonts"
projectNameAbbreviation = "NF"
projectNameSingular = projectName[:-1]
import sys
import re
import os
import argparse
from argparse import RawTextHelpFormatter
import errno
import subprocess
import json
try:
import configparser
except ImportError:
sys.exit(projectName + ": configparser module is probably not installed. Try `pip install configparser` or equivalent")
try:
import psMat
import fontforge
except ImportError:
sys.exit(
projectName + (
": FontForge module could not be loaded. Try installing fontforge python bindings "
"[e.g. on Linux Debian or Ubuntu: `sudo apt install fontforge python3-fontforge`]"
)
)
# This is for experimenting
sys.path.insert(0, os.path.abspath(os.path.dirname(sys.argv[0])) + '/bin/scripts/name_parser/')
try:
from FontnameParser import FontnameParser
from FontnameTools import FontnameTools
FontnameParserOK = True
except ImportError:
FontnameParserOK = False
class TableHEADWriter:
""" Access to the HEAD table without external dependencies """
def getlong(self, pos = None):
""" Get four bytes from the font file as integer number """
if pos:
self.goto(pos)
return (ord(self.f.read(1)) << 24) + (ord(self.f.read(1)) << 16) + (ord(self.f.read(1)) << 8) + ord(self.f.read(1))
def getshort(self, pos = None):
""" Get two bytes from the font file as integer number """
if pos:
self.goto(pos)
return (ord(self.f.read(1)) << 8) + ord(self.f.read(1))
def putlong(self, num, pos = None):
""" Put number as four bytes into font file """
if pos:
self.goto(pos)
self.f.write(bytearray([(num >> 24) & 0xFF, (num >> 16) & 0xFF ,(num >> 8) & 0xFF, num & 0xFF]))
self.modified = True
def putshort(self, num, pos = None):
""" Put number as two bytes into font file """
if pos:
self.goto(pos)
self.f.write(bytearray([(num >> 8) & 0xFF, num & 0xFF]))
self.modified = True
def calc_checksum(self, start, end, checksum = 0):
""" Calculate a font table checksum, optionally ignoring another embedded checksum value (for table 'head') """
self.f.seek(start)
for i in range(start, end - 4, 4):
checksum += self.getlong()
checksum &= 0xFFFFFFFF
i += 4
extra = 0
for j in range(4):
if i + j <= end:
extra += ord(self.f.read(1))
extra = extra << 8
checksum = (checksum + extra) & 0xFFFFFFFF
return checksum
def find_head_table(self):
""" Search all tables for the HEAD table and store its metadata """
self.f.seek(4)
numtables = self.getshort()
self.f.seek(3*2, 1)
for i in range(numtables):
tab_name = self.f.read(4)
self.tab_check_offset = self.f.tell()
self.tab_check = self.getlong()
self.tab_offset = self.getlong()
self.tab_length = self.getlong()
if tab_name == b'head':
return
raise Exception('No HEAD table found')
def goto(self, where):
""" Go to a named location in the file or to the specified index """
if type(where) is str:
positions = {'checksumAdjustment': 2+2+4,
'flags': 2+2+4+4+4,
'lowestRecPPEM': 2+2+4+4+4+2+2+8+8+2+2+2+2+2,
}
where = self.tab_offset + positions[where]
self.f.seek(where)
def calc_full_checksum(self, check = False):
""" Calculate the whole file's checksum """
self.f.seek(0, 2)
self.end = self.f.tell()
full_check = self.calc_checksum(0, self.end, (-self.checksum_adj) & 0xFFFFFFFF)
if check and (0xB1B0AFBA - full_check) & 0xFFFFFFFF != self.checksum_adj:
sys.exit("Checksum of whole font is bad")
return full_check
def calc_table_checksum(self, check = False):
tab_check_new = self.calc_checksum(self.tab_offset, self.tab_offset + self.tab_length - 1, (-self.checksum_adj) & 0xFFFFFFFF)
if check and tab_check_new != self.tab_check:
sys.exit("Checksum of 'head' in font is bad")
return tab_check_new
def reset_table_checksum(self):
new_check = self.calc_table_checksum()
self.putlong(new_check, self.tab_check_offset)
def reset_full_checksum(self):
new_adj = (0xB1B0AFBA - self.calc_full_checksum()) & 0xFFFFFFFF
self.putlong(new_adj, 'checksumAdjustment')
def close(self):
self.f.close()
def __init__(self, filename):
self.modified = False
self.f = open(filename, 'r+b')
self.find_head_table()
self.flags = self.getshort('flags')
self.lowppem = self.getshort('lowestRecPPEM')
self.checksum_adj = self.getlong('checksumAdjustment')
class font_patcher:
def __init__(self):
self.args = None # class 'argparse.Namespace'
self.sym_font_args = []
self.config = None # class 'configparser.ConfigParser'
self.sourceFont = None # class 'fontforge.font'
self.octiconsExactEncodingPosition = True
self.patch_set = None # class 'list'
self.font_dim = None # class 'dict'
self.onlybitmaps = 0
self.extension = ""
self.essential = set()
self.setup_arguments()
self.config = configparser.ConfigParser(empty_lines_in_values=False, allow_no_value=True)
if not os.path.isfile(self.args.font):
sys.exit("{}: Font file does not exist: {}".format(projectName, self.args.font))
if not os.access(self.args.font, os.R_OK):
sys.exit("{}: Can not open font file for reading: {}".format(projectName, self.args.font))
if len(fontforge.fontsInFile(self.args.font)) > 1:
sys.exit("{}: Font file contains {} fonts, can only handle single font files".format(projectName,
len(fontforge.fontsInFile(self.args.font))))
try:
self.sourceFont = fontforge.open(self.args.font, 1) # 1 = ("fstypepermitted",))
except Exception:
sys.exit(projectName + ": Can not open font, try to open with fontforge interactively to get more information")
self.setup_version()
self.get_essential_references()
self.setup_name_backup()
self.remove_ligatures()
make_sure_path_exists(self.args.outputdir)
self.check_position_conflicts()
self.setup_patch_set()
self.setup_line_dimensions()
self.get_sourcefont_dimensions()
self.sourceFont.encoding = 'UnicodeFull' # Update the font encoding to ensure that the Unicode glyphs are available
self.onlybitmaps = self.sourceFont.onlybitmaps # Fetch this property before adding outlines. NOTE self.onlybitmaps initialized and never used
if self.args.extension == "":
self.extension = os.path.splitext(self.args.font)[1]
else:
self.extension = '.' + self.args.extension
if re.match("\.ttc$", self.extension, re.IGNORECASE):
sys.exit(projectName + ": Can not create True Type Collections")
def patch(self):
print("{} Patcher v{} ({}) executing\n".format(projectName, version, script_version))
if self.args.single:
# Force width to be equal on all glyphs to ensure the font is considered monospaced on Windows.
# This needs to be done on all characters, as some information seems to be lost from the original font file.
self.set_sourcefont_glyph_widths()
# For some Windows applications (e.g. 'cmd') that is not enough. But they seem to honour the Panose table
# https://forum.high-logic.com/postedfiles/Panose.pdf
panose = list(self.sourceFont.os2_panose)
if panose[0] == 0 or panose[0] == 2: # 0 (1st value) = family kind; 0 = any (default); 2 = latin text and display
panose[0] = 2 # Assert kind
panose[3] = 9 # 3 (4th value) = propotion; 9 = monospaced
self.sourceFont.os2_panose = tuple(panose)
# Prevent opening and closing the fontforge font. Makes things faster when patching
# multiple ranges using the same symbol font.
PreviousSymbolFilename = ""
symfont = None
if not os.path.isdir(self.args.glyphdir):
sys.exit("{}: Can not find symbol glyph directory {} "
"(probably you need to download the src/glyphs/ directory?)".format(projectName, self.args.glyphdir))
for patch in self.patch_set:
if patch['Enabled']:
if PreviousSymbolFilename != patch['Filename']:
# We have a new symbol font, so close the previous one if it exists
if symfont:
symfont.close()
symfont = None
if not os.path.isfile(self.args.glyphdir + patch['Filename']):
sys.exit("{}: Can not find symbol source for '{}'\n{:>{}} (i.e. {})".format(
projectName, patch['Name'], '', len(projectName), self.args.glyphdir + patch['Filename']))
if not os.access(self.args.glyphdir + patch['Filename'], os.R_OK):
sys.exit("{}: Can not open symbol source for '{}'\n{:>{}} (i.e. {})".format(
projectName, patch['Name'], '', len(projectName), self.args.glyphdir + patch['Filename']))
symfont = fontforge.open(os.path.join(self.args.glyphdir, patch['Filename']))
# Match the symbol font size to the source font size
symfont.em = self.sourceFont.em
PreviousSymbolFilename = patch['Filename']
# If patch table doesn't include a source start and end, re-use the symbol font values
SrcStart = patch['SrcStart']
SrcEnd = patch['SrcEnd']
if not SrcStart:
SrcStart = patch['SymStart']
if not SrcEnd:
SrcEnd = patch['SymEnd']
self.copy_glyphs(SrcStart, SrcEnd, symfont, patch['SymStart'], patch['SymEnd'], patch['Exact'], patch['ScaleGlyph'], patch['Name'], patch['Attributes'])
if symfont:
symfont.close()
# The grave accent and fontforge:
# If the type is 'auto' fontforge changes it to 'mark' on export.
# We can not prevent this. So set it to 'baseglyph' instead, as
# that resembles the most common expectations.
# This is not needed with fontforge March 2022 Release anymore.
if "grave" in self.sourceFont:
self.sourceFont["grave"].glyphclass="baseglyph"
def generate(self):
# the `PfEd-comments` flag is required for Fontforge to save '.comment' and '.fontlog'.
if self.sourceFont.fullname != None:
outfile = self.args.outputdir + "/" + self.sourceFont.fullname + self.extension
self.sourceFont.generate(outfile, flags=(str('opentype'), str('PfEd-comments')))
message = "\nGenerated: {} in '{}'".format(self.sourceFont.fullname, outfile)
else:
outfile = self.args.outputdir + "/" + self.sourceFont.cidfontname + self.extension
self.sourceFont.generate(outfile, flags=(str('opentype'), str('PfEd-comments')))
message = "\nGenerated: {} in '{}'".format(self.sourceFont.fontname, outfile)
# Adjust flags that can not be changed via fontforge
try:
source_font = TableHEADWriter(self.args.font)
dest_font = TableHEADWriter(outfile)
if source_font.flags & 0x08 == 0 and dest_font.flags & 0x08 != 0:
print("Changing flags from 0x{:X} to 0x{:X}".format(dest_font.flags, dest_font.flags & ~0x08))
dest_font.putshort(dest_font.flags & ~0x08, 'flags') # clear 'ppem_to_int'
if source_font.lowppem != dest_font.lowppem:
print("Changing lowestRecPPEM from {} to {}".format(dest_font.lowppem, source_font.lowppem))
dest_font.putshort(source_font.lowppem, 'lowestRecPPEM')
if dest_font.modified:
dest_font.reset_table_checksum()
dest_font.reset_full_checksum()
except Exception as error:
print("Can not handle font flags ({})".format(repr(error)))
finally:
try:
source_font.close()
dest_font.close()
except:
pass
print(message)
if self.args.postprocess:
subprocess.call([self.args.postprocess, outfile])
print("\nPost Processed: {}".format(outfile))
def setup_arguments(self):
parser = argparse.ArgumentParser(
description=(
'Nerd Fonts Font Patcher: patches a given font with programming and development related glyphs\n\n'
'* Website: https://www.nerdfonts.com\n'
'* Version: ' + version + '\n'
'* Development Website: https://github.com/ryanoasis/nerd-fonts\n'
'* Changelog: https://github.com/ryanoasis/nerd-fonts/blob/master/changelog.md'),
formatter_class=RawTextHelpFormatter
)
# optional arguments
parser.add_argument('font', help='The path to the font to patch (e.g., Inconsolata.otf)')
parser.add_argument('-v', '--version', action='version', version=projectName + ": %(prog)s (" + version + ")")
parser.add_argument('-s', '--mono', '--use-single-width-glyphs', dest='single', default=False, action='store_true', help='Whether to generate the glyphs as single-width not double-width (default is double-width)')
parser.add_argument('-l', '--adjust-line-height', dest='adjustLineHeight', default=False, action='store_true', help='Whether to adjust line heights (attempt to center powerline separators more evenly)')
parser.add_argument('-q', '--quiet', '--shutup', dest='quiet', default=False, action='store_true', help='Do not generate verbose output')
parser.add_argument('-w', '--windows', dest='windows', default=False, action='store_true', help='Limit the internal font name to 31 characters (for Windows compatibility)')
parser.add_argument('-c', '--complete', dest='complete', default=False, action='store_true', help='Add all available Glyphs')
parser.add_argument('--careful', dest='careful', default=False, action='store_true', help='Do not overwrite existing glyphs if detected')
parser.add_argument('--removeligs', '--removeligatures', dest='removeligatures', default=False, action='store_true', help='Removes ligatures specificed in JSON configuration file')
parser.add_argument('--postprocess', dest='postprocess', default=False, type=str, nargs='?', help='Specify a Script for Post Processing')
parser.add_argument('--configfile', dest='configfile', default=False, type=str, nargs='?', help='Specify a file path for JSON configuration file (see sample: src/config.sample.json)')
parser.add_argument('--custom', dest='custom', default=False, type=str, nargs='?', help='Specify a custom symbol font. All new glyphs will be copied, with no scaling applied.')
parser.add_argument('-ext', '--extension', dest='extension', default="", type=str, nargs='?', help='Change font file type to create (e.g., ttf, otf)')
parser.add_argument('-out', '--outputdir', dest='outputdir', default=".", type=str, nargs='?', help='The directory to output the patched font file to')
parser.add_argument('--glyphdir', dest='glyphdir', default=__dir__ + "/src/glyphs/", type=str, nargs='?', help='Path to glyphs to be used for patching')
parser.add_argument('--makegroups', dest='makegroups', default=False, action='store_true', help='Use alternative method to name patched fonts (experimental)')
parser.add_argument('--variable-width-glyphs', dest='nonmono', default=False, action='store_true', help='Do not adjust advance width (no "overhang")')
# progress bar arguments - https://stackoverflow.com/questions/15008758/parsing-boolean-values-with-argparse
progressbars_group_parser = parser.add_mutually_exclusive_group(required=False)
progressbars_group_parser.add_argument('--progressbars', dest='progressbars', action='store_true', help='Show percentage completion progress bars per Glyph Set')
progressbars_group_parser.add_argument('--no-progressbars', dest='progressbars', action='store_false', help='Don\'t show percentage completion progress bars per Glyph Set')
parser.set_defaults(progressbars=True)
parser.add_argument('--also-windows', dest='alsowindows', default=False, action='store_true', help='Create two fonts, the normal and the --windows version')
# symbol fonts to include arguments
sym_font_group = parser.add_argument_group('Symbol Fonts')
sym_font_group.add_argument('--fontawesome', dest='fontawesome', default=False, action='store_true', help='Add Font Awesome Glyphs (http://fontawesome.io/)')
sym_font_group.add_argument('--fontawesomeextension', dest='fontawesomeextension', default=False, action='store_true', help='Add Font Awesome Extension Glyphs (https://andrelzgava.github.io/font-awesome-extension/)')
sym_font_group.add_argument('--fontlinux', '--fontlogos', dest='fontlinux', default=False, action='store_true', help='Add Font Linux and other open source Glyphs (https://github.com/Lukas-W/font-logos)')
sym_font_group.add_argument('--octicons', dest='octicons', default=False, action='store_true', help='Add Octicons Glyphs (https://octicons.github.com)')
sym_font_group.add_argument('--codicons', dest='codicons', default=False, action='store_true', help='Add Codicons Glyphs (https://github.com/microsoft/vscode-codicons)')
sym_font_group.add_argument('--powersymbols', dest='powersymbols', default=False, action='store_true', help='Add IEC Power Symbols (https://unicodepowersymbol.com/)')
sym_font_group.add_argument('--pomicons', dest='pomicons', default=False, action='store_true', help='Add Pomicon Glyphs (https://github.com/gabrielelana/pomicons)')
sym_font_group.add_argument('--powerline', dest='powerline', default=False, action='store_true', help='Add Powerline Glyphs')
sym_font_group.add_argument('--powerlineextra', dest='powerlineextra', default=False, action='store_true', help='Add Powerline Glyphs (https://github.com/ryanoasis/powerline-extra-symbols)')
sym_font_group.add_argument('--material', '--materialdesignicons', '--mdi', dest='material', default=False, action='store_true', help='Add Material Design Icons (https://github.com/templarian/MaterialDesign)')
sym_font_group.add_argument('--weather', '--weathericons', dest='weather', default=False, action='store_true', help='Add Weather Icons (https://github.com/erikflowers/weather-icons)')
self.args = parser.parse_args()
if self.args.makegroups and not FontnameParserOK:
sys.exit(projectName + ": FontnameParser module missing (bin/scripts/name_parser/Fontname*), can not --makegroups".format(projectName))
# if you add a new font, set it to True here inside the if condition
if self.args.complete:
self.args.fontawesome = True
self.args.fontawesomeextension = True
self.args.fontlinux = True
self.args.octicons = True
self.args.codicons = True
self.args.powersymbols = True
self.args.pomicons = True
self.args.powerline = True
self.args.powerlineextra = True
self.args.material = True
self.args.weather = True
if not self.args.complete:
# add the list of arguments for each symbol font to the list self.sym_font_args
for action in sym_font_group._group_actions:
self.sym_font_args.append(action.__dict__['option_strings'])
# determine whether or not all symbol fonts are to be used
font_complete = True
for sym_font_arg_aliases in self.sym_font_args:
found = False
for alias in sym_font_arg_aliases:
if alias in sys.argv:
found = True
if found is not True:
font_complete = False
self.args.complete = font_complete
if self.args.alsowindows:
self.args.windows = False
if self.args.nonmono and self.args.single:
print("Warniung: Specified contradicting --variable-width-glyphs and --use-single-width-glyph. Ignoring --variable-width-glyphs.")
self.args.nonmono = False
# this one also works but it needs to be updated every time a font is added
# it was a conditional in self.setup_font_names() before, but it was missing
# a symbol font, so it would name the font complete without being so sometimes.
# that's why i did the above.
#
# if you add a new font, put it in here too, as the others are
# self.args.complete = all([
# self.args.fontawesome is True,
# self.args.fontawesomeextension is True,
# self.args.fontlinux is True,
# self.args.octicons is True,
# self.args.powersymbols is True,
# self.args.pomicons is True,
# self.args.powerline is True,
# self.args.powerlineextra is True,
# self.args.material is True,
# self.args.weather is True
# ])
def setup_name_backup(self):
""" Store the original font names to be able to rename the font multiple times """
self.original_fontname = self.sourceFont.fontname
self.original_fullname = self.sourceFont.fullname
self.original_familyname = self.sourceFont.familyname
def setup_font_names(self):
self.sourceFont.fontname = self.original_fontname
self.sourceFont.fullname = self.original_fullname
self.sourceFont.familyname = self.original_familyname
verboseAdditionalFontNameSuffix = " " + projectNameSingular
if self.args.windows: # attempt to shorten here on the additional name BEFORE trimming later
additionalFontNameSuffix = " " + projectNameAbbreviation
else:
additionalFontNameSuffix = verboseAdditionalFontNameSuffix
if not self.args.complete:
# NOTE not all symbol fonts have appended their suffix here
if self.args.fontawesome:
additionalFontNameSuffix += " A"
verboseAdditionalFontNameSuffix += " Plus Font Awesome"
if self.args.fontawesomeextension:
additionalFontNameSuffix += " AE"
verboseAdditionalFontNameSuffix += " Plus Font Awesome Extension"
if self.args.octicons:
additionalFontNameSuffix += " O"
verboseAdditionalFontNameSuffix += " Plus Octicons"
if self.args.powersymbols:
additionalFontNameSuffix += " PS"
verboseAdditionalFontNameSuffix += " Plus Power Symbols"
if self.args.codicons:
additionalFontNameSuffix += " C"
verboseAdditionalFontNameSuffix += " Plus Codicons"
if self.args.pomicons:
additionalFontNameSuffix += " P"
verboseAdditionalFontNameSuffix += " Plus Pomicons"
if self.args.fontlinux:
additionalFontNameSuffix += " L"
verboseAdditionalFontNameSuffix += " Plus Font Logos (Font Linux)"
if self.args.material:
additionalFontNameSuffix += " MDI"
verboseAdditionalFontNameSuffix += " Plus Material Design Icons"
if self.args.weather:
additionalFontNameSuffix += " WEA"
verboseAdditionalFontNameSuffix += " Plus Weather Icons"
# if all source glyphs included simplify the name
else:
additionalFontNameSuffix = " " + projectNameSingular + " Complete"
verboseAdditionalFontNameSuffix = " " + projectNameSingular + " Complete"
# add mono signifier to end of name
if self.args.single:
additionalFontNameSuffix += " M"
verboseAdditionalFontNameSuffix += " Mono"
if FontnameParserOK and self.args.makegroups:
use_fullname = type(self.sourceFont.fullname) == str # Usually the fullname is better to parse
# Use fullname if it is 'equal' to the fontname
if self.sourceFont.fullname:
use_fullname |= self.sourceFont.fontname.lower() == FontnameTools.postscript_char_filter(self.sourceFont.fullname).lower()
# Use fullname for any of these source fonts (that are impossible to disentangle from the fontname, we need the blanks)
for hit in [ 'Meslo' ]:
use_fullname |= self.sourceFont.fontname.lower().startswith(hit.lower())
parser_name = self.sourceFont.fullname if use_fullname else self.sourceFont.fontname
# Gohu fontnames hide the weight, but the file names are ok...
if parser_name.startswith('Gohu'):
parser_name = os.path.splitext(os.path.basename(self.args.font))[0]
n = FontnameParser(parser_name)
if not n.parse_ok:
print("Have only minimal naming information, check resulting name. Maybe omit --makegroups option")
n.drop_for_powerline()
n.enable_short_families(True, "Noto")
n.set_for_windows(self.args.windows)
# All the following stuff is ignored in makegroups-mode
# basically split the font name around the dash "-" to get the fontname and the style (e.g. Bold)
# this does not seem very reliable so only use the style here as a fallback if the font does not
# have an internal style defined (in sfnt_names)
# using '([^-]*?)' to get the item before the first dash "-"
# using '([^-]*(?!.*-))' to get the item after the last dash "-"
fontname, fallbackStyle = re.match("^([^-]*).*?([^-]*(?!.*-))$", self.sourceFont.fontname).groups()
# dont trust 'sourceFont.familyname'
familyname = fontname
# fullname (filename) can always use long/verbose font name, even in windows
if self.sourceFont.fullname != None:
fullname = self.sourceFont.fullname + verboseAdditionalFontNameSuffix
else:
fullname = self.sourceFont.cidfontname + verboseAdditionalFontNameSuffix
fontname = fontname + additionalFontNameSuffix.replace(" ", "")
# let us try to get the 'style' from the font info in sfnt_names and fallback to the
# parse fontname if it fails:
try:
# search tuple:
subFamilyTupleIndex = [x[1] for x in self.sourceFont.sfnt_names].index("SubFamily")
# String ID is at the second index in the Tuple lists
sfntNamesStringIDIndex = 2
# now we have the correct item:
subFamily = self.sourceFont.sfnt_names[subFamilyTupleIndex][sfntNamesStringIDIndex]
except IndexError:
sys.stderr.write("{}: Could not find 'SubFamily' for given font, falling back to parsed fontname\n".format(projectName))
subFamily = fallbackStyle
# some fonts have inaccurate 'SubFamily', if it is Regular let us trust the filename more:
if subFamily == "Regular":
subFamily = fallbackStyle
# This is meant to cover the case where the SubFamily is "Italic" and the filename is *-BoldItalic.
if len(subFamily) < len(fallbackStyle):
subFamily = fallbackStyle
if self.args.windows:
maxFamilyLength = 31
maxFontLength = maxFamilyLength - len('-' + subFamily)
familyname += " " + projectNameAbbreviation
if self.args.single:
familyname += "M"
fullname += " Windows Compatible"
# now make sure less than 32 characters name length
if len(fontname) > maxFontLength:
fontname = fontname[:maxFontLength]
if len(familyname) > maxFamilyLength:
familyname = familyname[:maxFamilyLength]
else:
familyname += " " + projectNameSingular
if self.args.single:
familyname += " Mono"
# Don't truncate the subfamily to keep fontname unique. MacOS treats fonts with
# the same name as the same font, even if subFamily is different. Make sure to
# keep the resulting fontname (PostScript name) valid by removing spaces.
fontname += '-' + subFamily.replace(' ', '')
# rename font
#
# comply with SIL Open Font License (OFL)
reservedFontNameReplacements = {
'source' : 'sauce',
'Source' : 'Sauce',
'hermit' : 'hurmit',
'Hermit' : 'Hurmit',
'hasklig' : 'hasklug',
'Hasklig' : 'Hasklug',
'Share' : 'Shure',
'share' : 'shure',
'IBMPlex' : 'Blex',
'ibmplex' : 'blex',
'IBM-Plex' : 'Blex',
'IBM Plex' : 'Blex',
'terminus' : 'terminess',
'Terminus' : 'Terminess',
'liberation' : 'literation',
'Liberation' : 'Literation',
'iAWriter' : 'iMWriting',
'iA Writer' : 'iM Writing',
'iA-Writer' : 'iM-Writing',
'Anka/Coder' : 'AnaConder',
'anka/coder' : 'anaconder',
'Cascadia Code' : 'Caskaydia Cove',
'cascadia code' : 'caskaydia cove',
'CascadiaCode' : 'CaskaydiaCove',
'cascadiacode' : 'caskaydiacove',
'Cascadia Mono' : 'Caskaydia Mono',
'cascadia mono' : 'caskaydia mono',
'CascadiaMono' : 'CaskaydiaMono',
'cascadiamono' : 'caskaydiamono',
'Fira Mono' : 'Fura Mono',
'Fira Sans' : 'Fura Sans',
'FiraMono' : 'FuraMono',
'FiraSans' : 'FuraSans',
'fira mono' : 'fura mono',
'fira sans' : 'fura sans',
'firamono' : 'furamono',
'firasans' : 'furasans',
}
# remove overly verbose font names
# particularly regarding Powerline sourced Fonts (https://github.com/powerline/fonts)
additionalFontNameReplacements = {
'for Powerline': '',
'ForPowerline': ''
}
additionalFontNameReplacements2 = {
'Powerline': ''
}
projectInfo = (
"Patched with '" + projectName + " Patcher' (https://github.com/ryanoasis/nerd-fonts)\n\n"
"* Website: https://www.nerdfonts.com\n"
"* Version: " + version + "\n"
"* Development Website: https://github.com/ryanoasis/nerd-fonts\n"
"* Changelog: https://github.com/ryanoasis/nerd-fonts/blob/master/changelog.md"
)
familyname = replace_font_name(familyname, reservedFontNameReplacements)
fullname = replace_font_name(fullname, reservedFontNameReplacements)
fontname = replace_font_name(fontname, reservedFontNameReplacements)
familyname = replace_font_name(familyname, additionalFontNameReplacements)
fullname = replace_font_name(fullname, additionalFontNameReplacements)
fontname = replace_font_name(fontname, additionalFontNameReplacements)
familyname = replace_font_name(familyname, additionalFontNameReplacements2)
fullname = replace_font_name(fullname, additionalFontNameReplacements2)
fontname = replace_font_name(fontname, additionalFontNameReplacements2)
if not (FontnameParserOK and self.args.makegroups):
# replace any extra whitespace characters:
self.sourceFont.familyname = " ".join(familyname.split())
self.sourceFont.fullname = " ".join(fullname.split())
self.sourceFont.fontname = " ".join(fontname.split())
self.sourceFont.appendSFNTName(str('English (US)'), str('Preferred Family'), self.sourceFont.familyname)
self.sourceFont.appendSFNTName(str('English (US)'), str('Family'), self.sourceFont.familyname)
self.sourceFont.appendSFNTName(str('English (US)'), str('Compatible Full'), self.sourceFont.fullname)
self.sourceFont.appendSFNTName(str('English (US)'), str('SubFamily'), subFamily)
else:
fam_suffix = projectNameSingular if not self.args.windows else projectNameAbbreviation
fam_suffix += ' Mono' if self.args.single else ''
n.inject_suffix(verboseAdditionalFontNameSuffix, additionalFontNameSuffix, fam_suffix)
n.rename_font(self.sourceFont)
self.sourceFont.comment = projectInfo
self.sourceFont.fontlog = projectInfo
def setup_version(self):
""" Add the Nerd Font version to the original version """
# print("Version was {}".format(sourceFont.version))
if self.sourceFont.version != None:
self.sourceFont.version += ";" + projectName + " " + version
else:
self.sourceFont.version = str(self.sourceFont.cidversion) + ";" + projectName + " " + version
self.sourceFont.sfntRevision = None # Auto-set (refreshed) by fontforge
self.sourceFont.appendSFNTName(str('English (US)'), str('Version'), "Version " + self.sourceFont.version)
# print("Version now is {}".format(sourceFont.version))
def remove_ligatures(self):
# let's deal with ligatures (mostly for monospaced fonts)
if self.args.configfile and self.config.read(self.args.configfile):
if self.args.removeligatures:
print("Removing ligatures from configfile `Subtables` section")
ligature_subtables = json.loads(self.config.get("Subtables", "ligatures"))
for subtable in ligature_subtables:
print("Removing subtable:", subtable)
try:
self.sourceFont.removeLookupSubtable(subtable)
print("Successfully removed subtable:", subtable)
except Exception:
print("Failed to remove subtable:", subtable)
elif self.args.removeligatures:
print("Unable to read configfile, unable to remove ligatures")
else:
print("No configfile given, skipping configfile related actions")
def check_position_conflicts(self):
# Prevent glyph encoding position conflicts between glyph sets
if self.args.fontawesome and self.args.octicons:
self.octiconsExactEncodingPosition = False
def setup_patch_set(self):
""" Creates list of dicts to with instructions on copying glyphs from each symbol font into self.sourceFont """
# Supported params: overlap | careful
# Powerline dividers
SYM_ATTR_POWERLINE = {
'default': {'align': 'c', 'valign': 'c', 'stretch': 'pa', 'params': {}},
# Arrow tips
0xe0b0: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0b1: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0b2: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0b3: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
# Rounded arcs
0xe0b4: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
0xe0b5: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
0xe0b6: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
0xe0b7: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
# Bottom Triangles
0xe0b8: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0b9: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0ba: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0bb: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
# Top Triangles
0xe0bc: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0bd: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0be: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0bf: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
# Flames
0xe0c0: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
0xe0c1: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
0xe0c2: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
0xe0c3: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
# Small squares
0xe0c4: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {}},
0xe0c5: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {}},
# Bigger squares
0xe0c6: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {}},
0xe0c7: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {}},
# Waveform
0xe0c8: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.01}},
# Hexagons
0xe0cc: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {}},
0xe0cd: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {}},
# Legos
0xe0ce: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {}},
0xe0cf: {'align': 'c', 'valign': 'c', 'stretch': 'xy', 'params': {}},
0xe0d1: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
# Top and bottom trapezoid
0xe0d2: {'align': 'l', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}},
0xe0d4: {'align': 'r', 'valign': 'c', 'stretch': 'xy', 'params': {'overlap': 0.02}}
}
SYM_ATTR_DEFAULT = {
# 'pa' == preserve aspect ratio
'default': {'align': 'c', 'valign': 'c', 'stretch': 'pa', 'params': {}}
}
SYM_ATTR_FONTA = {
# 'pa' == preserve aspect ratio
'default': {'align': 'c', 'valign': 'c', 'stretch': 'pa', 'params': {}},
# Don't center these arrows vertically
0xf0dc: {'align': 'c', 'valign': '', 'stretch': 'pa', 'params': {}},
0xf0dd: {'align': 'c', 'valign': '', 'stretch': 'pa', 'params': {}},
0xf0de: {'align': 'c', 'valign': '', 'stretch': 'pa', 'params': {}}
}
CUSTOM_ATTR = {
# 'pa' == preserve aspect ratio
'default': {'align': 'c', 'valign': '', 'stretch': '', 'params': {}}
}
# Most glyphs we want to maximize during the scale. However, there are some
# that need to be small or stay relative in size to each other.
# The following list are those glyphs. A tuple represents a range.
DEVI_SCALE_LIST = {'ScaleGlyph': 0xE60E, # Android logo
'GlyphsToScale': [
(0xe6bd, 0xe6c3) # very small things
]}
FONTA_SCALE_LIST = {'GlyphsToScale': [
[0xf005, 0xf006, 0xf089], # star, star empty, half star
range(0xf026, 0xf028 + 1), # volume off, down, up
range(0xf02b, 0xf02c + 1), # tag, tags
range(0xf031, 0xf035 + 1), # font et al
range(0xf044, 0xf046 + 1), # edit, share, check (boxes)
range(0xf048, 0xf052 + 1), # multimedia buttons
range(0xf060, 0xf063 + 1), # arrows
[0xf053, 0xf054, 0xf077, 0xf078], # chevron all directions
range(0xf07d, 0xf07e + 1), # resize
[0xf0d7, 0xf0da, 0xf0dc, 0xf0fe], # caret all directions and same looking sort
range(0xf100, 0xf107 + 1), # angle
range(0xf141, 0xf142 + 1), # ellipsis
range(0xf153, 0xf15a + 1), # currencies
range(0xf175, 0xf178 + 1), # long arrows
range(0xf182, 0xf183 + 1), # male and female
range(0xf221, 0xf22d + 1), # gender or so
range(0xf255, 0xf25b + 1), # hand symbols
]}
OCTI_SCALE_LIST = {'ScaleGlyph': 0xF02E, # looking glass (probably biggest glyph?)
'GlyphsToScale': [
(0xf03d, 0xf040), # arrows
0xf044, 0xf05a, 0xf05b, 0xf0aa, # triangles
(0xf051, 0xf053), # small stuff
0xf071, 0xf09f, 0xf0a0, 0xf0a1, # small arrows
0xf078, 0xf0a2, 0xf0a3, 0xf0a4, # chevrons
0xf0ca, # dash
]}
# Define the character ranges
# Symbol font ranges
self.patch_set = [
{'Enabled': True, 'Name': "Seti-UI + Custom", 'Filename': "original-source.otf", 'Exact': False, 'SymStart': 0xE4FA, 'SymEnd': 0xE534, 'SrcStart': 0xE5FA, 'SrcEnd': 0xE634, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT},
{'Enabled': True, 'Name': "Devicons", 'Filename': "devicons.ttf", 'Exact': False, 'SymStart': 0xE600, 'SymEnd': 0xE6C5, 'SrcStart': 0xE700, 'SrcEnd': 0xE7C5, 'ScaleGlyph': DEVI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT},
{'Enabled': self.args.powerline, 'Name': "Powerline Symbols", 'Filename': "powerline-symbols/PowerlineSymbols.otf", 'Exact': True, 'SymStart': 0xE0A0, 'SymEnd': 0xE0A2, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE},
{'Enabled': self.args.powerline, 'Name': "Powerline Symbols", 'Filename': "powerline-symbols/PowerlineSymbols.otf", 'Exact': True, 'SymStart': 0xE0B0, 'SymEnd': 0xE0B3, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE},
{'Enabled': self.args.powerlineextra, 'Name': "Powerline Extra Symbols", 'Filename': "PowerlineExtraSymbols.otf", 'Exact': True, 'SymStart': 0xE0A3, 'SymEnd': 0xE0A3, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE},
{'Enabled': self.args.powerlineextra, 'Name': "Powerline Extra Symbols", 'Filename': "PowerlineExtraSymbols.otf", 'Exact': True, 'SymStart': 0xE0B4, 'SymEnd': 0xE0C8, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE},
{'Enabled': self.args.powerlineextra, 'Name': "Powerline Extra Symbols", 'Filename': "PowerlineExtraSymbols.otf", 'Exact': True, 'SymStart': 0xE0CA, 'SymEnd': 0xE0CA, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE},
{'Enabled': self.args.powerlineextra, 'Name': "Powerline Extra Symbols", 'Filename': "PowerlineExtraSymbols.otf", 'Exact': True, 'SymStart': 0xE0CC, 'SymEnd': 0xE0D4, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE},
{'Enabled': self.args.pomicons, 'Name': "Pomicons", 'Filename': "Pomicons.otf", 'Exact': True, 'SymStart': 0xE000, 'SymEnd': 0xE00A, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT},
{'Enabled': self.args.fontawesome, 'Name': "Font Awesome", 'Filename': "font-awesome/FontAwesome.otf", 'Exact': True, 'SymStart': 0xF000, 'SymEnd': 0xF2E0, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': FONTA_SCALE_LIST, 'Attributes': SYM_ATTR_FONTA},
{'Enabled': self.args.fontawesomeextension, 'Name': "Font Awesome Extension", 'Filename': "font-awesome-extension.ttf", 'Exact': False, 'SymStart': 0xE000, 'SymEnd': 0xE0A9, 'SrcStart': 0xE200, 'SrcEnd': 0xE2A9, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT}, # Maximize
{'Enabled': self.args.powersymbols, 'Name': "Power Symbols", 'Filename': "Unicode_IEC_symbol_font.otf", 'Exact': True, 'SymStart': 0x23FB, 'SymEnd': 0x23FE, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT}, # Power, Power On/Off, Power On, Sleep
{'Enabled': self.args.powersymbols, 'Name': "Power Symbols", 'Filename': "Unicode_IEC_symbol_font.otf", 'Exact': True, 'SymStart': 0x2B58, 'SymEnd': 0x2B58, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT}, # Heavy Circle (aka Power Off)
{'Enabled': self.args.material, 'Name': "Material", 'Filename': "materialdesignicons-webfont.ttf", 'Exact': False, 'SymStart': 0xF001, 'SymEnd': 0xF847, 'SrcStart': 0xF500, 'SrcEnd': 0xFD46, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT},
{'Enabled': self.args.weather, 'Name': "Weather Icons", 'Filename': "weather-icons/weathericons-regular-webfont.ttf", 'Exact': False, 'SymStart': 0xF000, 'SymEnd': 0xF0EB, 'SrcStart': 0xE300, 'SrcEnd': 0xE3EB, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT},
{'Enabled': self.args.fontlinux, 'Name': "Font Logos (Font Linux)", 'Filename': "font-logos.ttf", 'Exact': True, 'SymStart': 0xF300, 'SymEnd': 0xF32F, 'SrcStart': None, 'SrcEnd': None , 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT},
{'Enabled': self.args.octicons, 'Name': "Octicons", 'Filename': "octicons.ttf", 'Exact': self.octiconsExactEncodingPosition, 'SymStart': 0xF000, 'SymEnd': 0xF105, 'SrcStart': 0xF400, 'SrcEnd': 0xF505, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT}, # Magnifying glass
{'Enabled': self.args.octicons, 'Name': "Octicons", 'Filename': "octicons.ttf", 'Exact': self.octiconsExactEncodingPosition, 'SymStart': 0x2665, 'SymEnd': 0x2665, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT}, # Heart
{'Enabled': self.args.octicons, 'Name': "Octicons", 'Filename': "octicons.ttf", 'Exact': self.octiconsExactEncodingPosition, 'SymStart': 0X26A1, 'SymEnd': 0X26A1, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT}, # Zap
{'Enabled': self.args.octicons, 'Name': "Octicons", 'Filename': "octicons.ttf", 'Exact': self.octiconsExactEncodingPosition, 'SymStart': 0xF27C, 'SymEnd': 0xF27C, 'SrcStart': 0xF4A9, 'SrcEnd': 0xF4A9, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT}, # Desktop
{'Enabled': self.args.codicons, 'Name': "Codicons", 'Filename': "codicons/codicon.ttf", 'Exact': True, 'SymStart': 0xEA60, 'SymEnd': 0xEBEB, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT},
{'Enabled': self.args.custom, 'Name': "Custom", 'Filename': self.args.custom, 'Exact': True, 'SymStart': 0x0000, 'SymEnd': 0x0000, 'SrcStart': 0x0000, 'SrcEnd': 0x0000, 'ScaleGlyph': None, 'Attributes': CUSTOM_ATTR}
]
def setup_line_dimensions(self):
# win_ascent and win_descent are used to set the line height for windows fonts.
# hhead_ascent and hhead_descent are used to set the line height for mac fonts.
#
# Make the total line size even. This seems to make the powerline separators
# center more evenly.
if self.args.adjustLineHeight:
if (self.sourceFont.os2_winascent + self.sourceFont.os2_windescent) % 2 != 0:
self.sourceFont.os2_winascent += 1
# Make the line size identical for windows and mac
# ! This is broken because hhea* is changed but os2_typo* is not
# ! On the other hand we need intact (i.e. original) typo values
# ! in get_sourcefont_dimensions() @TODO FIXME
self.sourceFont.hhea_ascent = self.sourceFont.os2_winascent
self.sourceFont.hhea_descent = -self.sourceFont.os2_windescent
# Line gap add extra space on the bottom of the line which
# doesn't allow the powerline glyphs to fill the entire line.
self.sourceFont.hhea_linegap = 0
self.sourceFont.os2_typolinegap = 0
def get_essential_references(self):
"""Find glyphs that are needed for the basic glyphs"""
# Sometimes basic glyphs are constructed from multiple other glyphs.
# Find out which other glyphs are also needed to keep the basic
# glyphs intact.
# 0x00-0x17f is the Latin Extended-A range
for glyph in range(0x21, 0x17f):
if not glyph in self.sourceFont:
continue
for r in self.sourceFont[glyph].references:
self.essential.add(self.sourceFont[r[0]].unicode)
def get_sourcefont_dimensions(self):
# Initial font dimensions
self.font_dim = {
'xmin' : 0,
'ymin' : -self.sourceFont.os2_windescent,
'xmax' : 0,
'ymax' : self.sourceFont.os2_winascent,
'width' : 0,
'height': 0,
}
if self.sourceFont.os2_use_typo_metrics:
self.font_dim['ymin'] = self.sourceFont.os2_typodescent
self.font_dim['ymax'] = self.sourceFont.os2_typoascent
# Find the biggest char width
# Ignore the y-values, os2_winXXXXX values set above are used for line height
#
# 0x00-0x17f is the Latin Extended-A range
for glyph in range(0x21, 0x17f):
if glyph in range(0x7F, 0xBF):
continue # ignore special characters like '1/4' etc
try:
(_, _, xmax, _) = self.sourceFont[glyph].boundingBox()
except TypeError:
continue
if self.font_dim['width'] < self.sourceFont[glyph].width:
self.font_dim['width'] = self.sourceFont[glyph].width
if xmax > self.font_dim['xmax']:
self.font_dim['xmax'] = xmax
# Calculate font height
self.font_dim['height'] = abs(self.font_dim['ymin']) + self.font_dim['ymax']
if self.font_dim['height'] == 0:
# This can only happen if the input font is empty
# Assume we are using our prepared templates
self.font_dim = {
'xmin' : 0,
'ymin' : -self.sourceFont.descent,
'xmax' : self.sourceFont.em,
'ymax' : self.sourceFont.ascent,
'width' : self.sourceFont.em,
'height': abs(self.sourceFont.descent) + self.sourceFont.ascent,
}
def get_scale_factor(self, sym_dim):
scale_ratio = 1
# We want to preserve x/y aspect ratio, so find biggest scale factor that allows symbol to fit
scale_ratio_x = self.font_dim['width'] / sym_dim['width']
scale_ratio_y = self.font_dim['height'] / sym_dim['height']
if scale_ratio_x > scale_ratio_y:
scale_ratio = scale_ratio_y
else:
scale_ratio = scale_ratio_x
return scale_ratio
def copy_glyphs(self, sourceFontStart, sourceFontEnd, symbolFont, symbolFontStart, symbolFontEnd, exactEncoding, scaleGlyph, setName, attributes):
""" Copies symbol glyphs into self.sourceFont """
progressText = ''
careful = False
glyphSetLength = 0
if self.args.careful:
careful = True
if exactEncoding is False:
sourceFontList = list(range(sourceFontStart, sourceFontEnd + 1))
sourceFontCounter = 0
# Create glyphs from symbol font
#
# If we are going to copy all Glyphs, then assume we want to be careful
# and only copy those that are not already contained in the source font
if symbolFontStart == 0:
symbolFont.selection.all()
careful = True
else:
symbolFont.selection.select((str("ranges"), str("unicode")), symbolFontStart, symbolFontEnd)
# Get number of selected non-empty glyphs
symbolFontSelection = list(symbolFont.selection.byGlyphs)
glyphSetLength = len(symbolFontSelection)
if self.args.quiet is False:
sys.stdout.write("Adding " + str(max(1, glyphSetLength)) + " Glyphs from " + setName + " Set \n")
currentSourceFontGlyph = -1 # initialize for the exactEncoding case
for index, sym_glyph in enumerate(symbolFontSelection):
index = max(1, index)
try:
sym_attr = attributes[sym_glyph.unicode]
except KeyError:
sym_attr = attributes['default']
if exactEncoding:
# Use the exact same hex values for the source font as for the symbol font.
# Problem is we do not know the codepoint of the sym_glyph and because it
# came from a selection.byGlyphs there might be skipped over glyphs.
# The iteration is still in the order of the selection by codepoint,
# so we take the next allowed codepoint of the current glyph
possible_codes = [ ]
if sym_glyph.unicode > currentSourceFontGlyph:
possible_codes += [ sym_glyph.unicode ]
if sym_glyph.altuni:
possible_codes += [ v for v, s, r in sym_glyph.altuni if v > currentSourceFontGlyph ]
currentSourceFontGlyph = min(possible_codes)
else:
# use source font defined hex values based on passed in start and end
currentSourceFontGlyph = sourceFontList[sourceFontCounter]
sourceFontCounter += 1
if self.args.quiet is False:
if self.args.progressbars:
update_progress(round(float(index + 1) / glyphSetLength, 2))
else:
progressText = "\nUpdating glyph: {} {} putting at: {:X}".format(sym_glyph, sym_glyph.glyphname, currentSourceFontGlyph)
sys.stdout.write(progressText)
sys.stdout.flush()
# check if a glyph already exists in this location
if careful or 'careful' in sym_attr['params'] or currentSourceFontGlyph in self.essential:
if currentSourceFontGlyph in self.sourceFont:
if self.args.quiet is False:
careful_type = 'essential' if currentSourceFontGlyph in self.essential else 'existing'
print(" Found {} Glyph at {:X}. Skipping...".format(careful_type, currentSourceFontGlyph))
# We don't want to touch anything so move to next Glyph
continue
else:
# If we overwrite an existing glyph all subtable entries regarding it will be wrong
# (Probably; at least if we add a symbol and do not substitude a ligature or such)
if currentSourceFontGlyph in self.sourceFont:
self.sourceFont[currentSourceFontGlyph].removePosSub("*")
# Select and copy symbol from its encoding point
# We need to do this select after the careful check, this way we don't
# reset our selection before starting the next loop
symbolFont.selection.select(sym_glyph.encoding)
symbolFont.copy()
# Paste it
self.sourceFont.selection.select(currentSourceFontGlyph)
self.sourceFont.paste()
self.sourceFont[currentSourceFontGlyph].glyphname = sym_glyph.glyphname
scale_ratio_x = 1
scale_ratio_y = 1
# Prepare symbol glyph dimensions
sym_dim = get_glyph_dimensions(self.sourceFont[currentSourceFontGlyph])
# Now that we have copy/pasted the glyph, if we are creating a monospace
# font we need to scale and move the glyphs. It is possible to have
# empty glyphs, so we need to skip those.
if self.args.single and sym_dim['width'] and sym_dim['height']:
# If we want to preserve that aspect ratio of the glyphs we need to
# find the largest possible scaling factor that will allow the glyph
# to fit in both the x and y directions
if sym_attr['stretch'] == 'pa':
scale_ratio_x = False
if scaleGlyph:
# We want to preserve the relative size of each glyph in a glyph group
scale_ratio_x = self.get_glyph_scale(sym_glyph.unicode, scaleGlyph, symbolFont)
if scale_ratio_x is False:
# In the remaining cases, each glyph is sized independently to each other
scale_ratio_x = self.get_scale_factor(sym_dim)
scale_ratio_y = scale_ratio_x
else:
if 'x' in sym_attr['stretch']:
# Stretch the glyph horizontally to fit the entire available width
scale_ratio_x = self.font_dim['width'] / sym_dim['width']
# end if single width
# non-monospace (double width glyphs)
# elif sym_dim['width'] and sym_dim['height']:
# any special logic we want to apply for double-width variation
# would go here
if 'y' in sym_attr['stretch']:
# Stretch the glyph vertically to total line height (good for powerline separators)
# Currently stretching vertically for both monospace and double-width
scale_ratio_y = self.font_dim['height'] / sym_dim['height']
overlap = sym_attr['params'].get('overlap')
if scale_ratio_x != 1 or scale_ratio_y != 1:
if overlap:
scale_ratio_x *= 1 + overlap
scale_ratio_y *= 1 + overlap
self.sourceFont[currentSourceFontGlyph].transform(psMat.scale(scale_ratio_x, scale_ratio_y))
# Use the dimensions from the newly pasted and stretched glyph
sym_dim = get_glyph_dimensions(self.sourceFont[currentSourceFontGlyph])
y_align_distance = 0
if sym_attr['valign'] == 'c':
# Center the symbol vertically by matching the center of the line height and center of symbol
sym_ycenter = sym_dim['ymax'] - (sym_dim['height'] / 2)
font_ycenter = self.font_dim['ymax'] - (self.font_dim['height'] / 2)
y_align_distance = font_ycenter - sym_ycenter
# Handle glyph l/r/c alignment
x_align_distance = 0
if sym_attr['align']:
# First find the baseline x-alignment (left alignment amount)
x_align_distance = self.font_dim['xmin'] - sym_dim['xmin']
if sym_attr['align'] == 'c':
# Center align
x_align_distance += (self.font_dim['width'] / 2) - (sym_dim['width'] / 2)
elif sym_attr['align'] == 'r':
# Right align
x_align_distance += self.font_dim['width'] - sym_dim['width']
if overlap:
overlap_width = self.font_dim['width'] * overlap
if sym_attr['align'] == 'l':
x_align_distance -= overlap_width
if sym_attr['align'] == 'r':
x_align_distance += overlap_width
align_matrix = psMat.translate(x_align_distance, y_align_distance)
self.sourceFont[currentSourceFontGlyph].transform(align_matrix)
# Ensure after horizontal adjustments and centering that the glyph
# does not overlap the bearings (edges)
if not overlap:
self.remove_glyph_neg_bearings(self.sourceFont[currentSourceFontGlyph])
# Needed for setting 'advance width' on each glyph so they do not overlap,
# also ensures the font is considered monospaced on Windows by setting the
# same width for all character glyphs. This needs to be done for all glyphs,
# even the ones that are empty and didn't go through the scaling operations.
# It should come after setting the glyph bearings
self.set_glyph_width_mono(self.sourceFont[currentSourceFontGlyph])
# Re-remove negative bearings for target font with variable advance width
if self.args.nonmono:
self.remove_glyph_neg_bearings(self.sourceFont[currentSourceFontGlyph])
# Check if the inserted glyph is scaled correctly for monospace
if self.args.single:
(xmin, _, xmax, _) = self.sourceFont[currentSourceFontGlyph].boundingBox()
if int(xmax - xmin) > self.font_dim['width'] * (1 + (overlap or 0)):
print("\n Warning: Scaled glyph U+{:X} wider than one monospace width ({} / {} (overlap {}))".format(
currentSourceFontGlyph, int(xmax - xmin), self.font_dim['width'], overlap))
# end for
if self.args.quiet is False or self.args.progressbars:
sys.stdout.write("\n")
def set_sourcefont_glyph_widths(self):
""" Makes self.sourceFont monospace compliant """
for glyph in self.sourceFont.glyphs():
if (glyph.width == self.font_dim['width']):
# Don't touch the (negative) bearings if the width is ok
# Ligartures will have these.
continue
if (glyph.width != 0):
# If the width is zero this glyph is intened to be printed on top of another one.
# In this case we need to keep the negative bearings to shift it 'left'.
# Things like &Auml; have these: composed of U+0041 'A' and U+0308 'double dot above'
#
# If width is not zero, correct the bearings such that they are within the width:
self.remove_glyph_neg_bearings(glyph)
self.set_glyph_width_mono(glyph)
def remove_glyph_neg_bearings(self, glyph):
""" Sets passed glyph's bearings 0 if they are negative. """
try:
if glyph.left_side_bearing < 0:
glyph.left_side_bearing = 0
if glyph.right_side_bearing < 0:
glyph.right_side_bearing = 0
except:
pass
def set_glyph_width_mono(self, glyph):
""" Sets passed glyph.width to self.font_dim.width.
self.font_dim.width is set with self.get_sourcefont_dimensions().
"""
try:
# Fontforge handles the width change like this:
# - Keep existing left_side_bearing
# - Set width
# - Calculate and set new right_side_bearing
glyph.width = self.font_dim['width']
except:
pass
def prepareScaleGlyph(self, scaleGlyph, symbolFont, destGlyph):
""" Prepare raw ScaleGlyph data for use """
# The GlyphData is a dict with these (possible) entries:
# 'GlyphsToScale': List of ((lists of glyph codes) or (ranges of glyph codes)) that shall be scaled
# 'scales': List of associated scale factors, one for each entry in 'GlyphsToScale' (generated by this function)
# Example:
# { 'GlyphsToScale': [ range(1, 3), [ 7, 10 ], ],
# 'scales': [ 1.23, 1.33, ] }
#
# Each item in 'GlyphsToScale' (a range or an explicit list) forms a group of glyphs that shall be
# as rescaled all with the same and maximum possible (for the included glyphs) factor.
#
# Previously this structure has been used:
# 'ScaleGlyph' Lead glyph, which scaling factor is taken
# 'GlyphsToScale': List of (glyph code) or (list of two glyph codes that form a closed range)) that shall be scaled
# Note that this allows only one group for the whle symbol font, and that the scaling factor is defined by
# a specific character, which needs to be manually selected (on each symbol font update).
# Previous entries are automatically rewritten to the new style.
if 'scales' in scaleGlyph:
# Already prepared... must not happen, ignore call
return
if 'ScaleGlyph' in scaleGlyph:
# old method. Rewrite to new.
flat_list = []
for i in scaleGlyph['GlyphsToScale']:
if isinstance(i, tuple):
flat_list += list(range(i[0], i[1] + 1))
else:
flat_list.append(i)
scaleGlyph['GlyphsToScale'] = [ flat_list ]
sym_dim = get_glyph_dimensions(symbolFont[scaleGlyph['ScaleGlyph']])
scaleGlyph['scales'] = [ self.get_scale_factor(sym_dim) ]
else:
scaleGlyph['scales'] = []
for group in scaleGlyph['GlyphsToScale']:
sym_dim = get_multiglyph_boundingBox([ symbolFont[g] if g in symbolFont else None for g in group ], destGlyph)
scaleGlyph['scales'].append(self.get_scale_factor(sym_dim))
def get_glyph_scale(self, unicode_value, scaleGlyph, symbolFont):
""" Determines whether or not to use scaled glyphs for glyphs in passed glyph_list """
# Potentially destorys the contents of self.sourceFont[unicode_value]
if not 'scales' in scaleGlyph:
self.prepareScaleGlyph(scaleGlyph, symbolFont, self.sourceFont[unicode_value])
for glyph_list, scale in zip(scaleGlyph['GlyphsToScale'], scaleGlyph['scales']):
if unicode_value in glyph_list:
return scale
return False
def replace_font_name(font_name, replacement_dict):
""" Replaces all keys with vals from replacement_dict in font_name. """
for key, val in replacement_dict.items():
font_name = font_name.replace(key, val)
return font_name
def make_sure_path_exists(path):
""" Verifies path passed to it exists. """
try:
os.makedirs(path)
except OSError as exception:
if exception.errno != errno.EEXIST:
raise
def get_multiglyph_boundingBox(glyphs, destGlyph = None):
""" Returns dict of the dimensions of multiple glyphs combined(, as if they are copied into destGlyph) """
# If destGlyph is given the glyph(s) are first copied over into that
# glyph and measured in that font (to avoid rounding errors)
# Leaves the destGlyph in unknown state!
bbox = [ None, None, None, None ]
for glyph in glyphs:
if glyph is None:
# Glyph has been in defining range but is not in the actual font
continue
if destGlyph:
glyph.font.selection.select(glyph)
glyph.font.copy()
destGlyph.font.selection.select(destGlyph)
destGlyph.font.paste()
glyph = destGlyph
gbb = glyph.boundingBox()
bbox[0] = gbb[0] if bbox[0] is None or bbox[0] > gbb[0] else bbox[0]
bbox[1] = gbb[1] if bbox[1] is None or bbox[1] > gbb[1] else bbox[1]
bbox[2] = gbb[2] if bbox[2] is None or bbox[2] < gbb[2] else bbox[2]
bbox[3] = gbb[3] if bbox[3] is None or bbox[3] < gbb[3] else bbox[3]
return {
'xmin' : bbox[0],
'ymin' : bbox[1],
'xmax' : bbox[2],
'ymax' : bbox[3],
'width' : bbox[2] + (-bbox[0]),
'height': bbox[3] + (-bbox[1]),
}
def get_glyph_dimensions(glyph):
""" Returns dict of the dimesions of the glyph passed to it. """
return get_multiglyph_boundingBox([ glyph ])
def update_progress(progress):
""" Updates progress bar length.
Accepts a float between 0.0 and 1.0. Any int will be converted to a float.
A value at 1 or bigger represents 100%
modified from: https://stackoverflow.com/questions/3160699/python-progress-bar
"""
barLength = 40 # Modify this to change the length of the progress bar
if isinstance(progress, int):
progress = float(progress)
if progress >= 1:
progress = 1
status = "Done...\r\n" # NOTE: status initialized and never used
block = int(round(barLength * progress))
text = "\r╢{0}╟ {1}%".format("█" * block + "░" * (barLength - block), int(progress * 100))
sys.stdout.write(text)
sys.stdout.flush()
def check_fontforge_min_version():
""" Verifies installed FontForge version meets minimum requirement. """
minimumVersion = 20141231
actualVersion = int(fontforge.version())
# un-comment following line for testing invalid version error handling
# actualVersion = 20120731
# versions tested: 20150612, 20150824
if actualVersion < minimumVersion:
sys.stderr.write("{}: You seem to be using an unsupported (old) version of fontforge: {}\n".format(projectName, actualVersion))
sys.stderr.write("{}: Please use at least version: {}\n".format(projectName, minimumVersion))
sys.exit(1)
def main():
check_fontforge_min_version()
patcher = font_patcher()
patcher.patch()
print("\nDone with Patch Sets, generating font...\n")
patcher.setup_font_names()
patcher.generate()
# This mainly helps to improve CI runtime
if patcher.args.alsowindows:
patcher.args.windows = True
patcher.setup_font_names()
patcher.generate()
if __name__ == "__main__":
__dir__ = os.path.dirname(os.path.abspath(__file__))
main()
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