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nerd-fonts/font-patcher

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#!/usr/bin/env python2
# coding=utf8
# version: 0.9.0
version = "0.9.0"
projectName = "Nerd Fonts"
projectNameAbbreviation = "NF"
projectNameSingular = projectName[:-1]
import sys
try:
import psMat
except ImportError:
sys.stderr.write(projectName + ": FontForge module is probably not installed. [See: http://designwithfontforge.com/en-US/Installing_Fontforge.html]\n")
sys.exit(1)
import re
import os
import argparse
import errno
try:
#Load the module
import fontforge
except ImportError:
sys.stderr.write(projectName + ": FontForge module could not be loaded. Try installing fontforge python bindings [e.g. on Linux Debian or Ubuntu: `sudo apt-get install fontforge python-fontforge`]\n")
sys.exit(1)
# argparse stuff
parser = argparse.ArgumentParser(description='Patches a given font with programming and web development related glyphs (mainly for https://github.com/ryanoasis/vim-devicons)')
parser.add_argument('-v', '--version', action='version', version=projectName + ": %(prog)s ("+version+")")
parser.add_argument('font', help='The path to the font to patch (e.g., Inconsolata.otf)')
parser.add_argument('-s', '--use-single-width-glyphs', dest='single', action='store_true', help='Whether to generate the glyphs as single-width not double-width (default is double-width)', default=False)
parser.add_argument('-q', '--quiet', '--shutup', dest='quiet', action='store_true', help='Do not generate verbose output', default=False)
parser.add_argument('-w', '--windows', '--limit-font-name-length', dest='windows', action='store_true', help='Limit the internal font name to 31 characters (for Windows compatibility)', default=False)
parser.add_argument('-c', '--complete', dest='complete', action='store_true', help='Add all available Glyphs', default=False)
parser.add_argument('--fontawesome', dest='fontawesome', action='store_true', help='Add Font Awesome Glyphs (http://fortawesome.github.io/Font-Awesome)', default=False)
parser.add_argument('--fontawesomeextension', dest='fontawesomeextension', action='store_true', help='Add Font Awesome Extension Glyphs (http://andrelgava.github.io/font-awesome-extension)', default=False)
parser.add_argument('--fontlinux', dest='fontlinux', action='store_true', help='Add Font Linux Glyphs (https://github.com/Lukas-W/font-linux)', default=False)
parser.add_argument('--octicons', dest='octicons', action='store_true', help='Add Octicons Glyphs (https://octicons.github.com)', default=False)
parser.add_argument('--powersymbols', dest='powersymbols', action='store_true', help='Add IEC Power Symbols (http://unicodepowersymbol.com)', default=False)
parser.add_argument('--pomicons', dest='pomicons', action='store_true', help='Add Pomicon Glyphs (https://github.com/gabrielelana/pomicons)', default=False)
parser.add_argument('--powerline', dest='powerline', action='store_true', help='Add Powerline Glyphs', default=False)
parser.add_argument('--powerlineextra', dest='powerlineextra', action='store_true', help='Add Powerline Glyphs (https://github.com/ryanoasis/powerline-extra-symbols)', default=False)
parser.add_argument('--custom', type=str, nargs='?', dest='custom', help='Specify a custom symbol font. All new glyphs will be copied, with no scaling applied.', default=False)
parser.add_argument('--careful', dest='careful', action='store_true', help='Do not overwrite existing glyphs if detected', default=False)
parser.add_argument('-ext', '--extension', type=str, nargs='?', dest='extension', help='Change font file type to create (e.g., ttf, otf)', default="")
parser.add_argument('-out', '--outputdir', type=str, nargs='?', dest='outputdir', help='The directory to output the patched font file to', default=".")
args = parser.parse_args()
changelog = open("changelog.md", "r")
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:
print projectName + ": You seem to be using an unsupported (old) version of fontforge: " + str(actualVersion)
print projectName + ": Please use at least version: " + str(minimumVersion)
sys.exit(1)
verboseAdditionalFontNameSuffix = " " + projectNameSingular
if args.complete:
args.fontawesome = True
args.fontawesomeextension = True
args.fontlinux = True
args.octicons = True
args.powersymbols = True
args.pomicons = True
args.powerline = True
args.powerlineextra = True
if args.windows:
# attempt to shorten here on the additional name BEFORE trimming later
additionalFontNameSuffix = " " + projectNameAbbreviation
else:
additionalFontNameSuffix = verboseAdditionalFontNameSuffix
if args.fontawesome:
additionalFontNameSuffix += " A"
verboseAdditionalFontNameSuffix += " Plus Font Awesome"
if args.fontawesomeextension:
additionalFontNameSuffix += " AE"
verboseAdditionalFontNameSuffix += " Plus Font Awesome Extension"
if args.octicons:
additionalFontNameSuffix += " O"
verboseAdditionalFontNameSuffix += " Plus Octicons"
if args.powersymbols:
additionalFontNameSuffix += " PS"
verboseAdditionalFontNameSuffix += " Plus Power Symbols"
if args.pomicons:
additionalFontNameSuffix += " P"
verboseAdditionalFontNameSuffix += " Plus Pomicons"
if args.fontlinux:
additionalFontNameSuffix += " L"
verboseAdditionalFontNameSuffix += " Plus Font Linux"
# if all source glyphs included simplify the name
if args.fontawesome and args.fontawesomeextension and args.octicons and args.powersymbols and args.pomicons and args.powerlineextra and args.fontlinux:
additionalFontNameSuffix = " " + projectNameSingular + " C"
verboseAdditionalFontNameSuffix = " " + projectNameSingular + " Complete"
# add mono signifier to end of name
if args.single:
additionalFontNameSuffix += " M"
verboseAdditionalFontNameSuffix += " Mono"
sourceFont = fontforge.open(args.font)
# 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("^([^-]*).*?([^-]*(?!.*-))$", sourceFont.fontname).groups()
# dont trust 'sourceFont.familyname'
familyname = fontname
# fullname (filename) can always use long/verbose font name, even in windows
fullname = sourceFont.fullname + 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 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 = sourceFont.sfnt_names[sfntNamesStringIDIndex][subFamilyTupleIndex]
except IndexError:
print projectName + ": Could not find 'SubFamily' for given font, falling back to parsed fontname"
subFamily = fallbackStyle
# some fonts have inaccurate 'SubFamily', if it is Regular let us trust the filename more:
if subFamily == "Regular":
subFamily = fallbackStyle
if args.windows:
maxFamilyLength = 31
maxFontLength = maxFamilyLength-len('-' + subFamily)
familyname += " " + projectNameAbbreviation
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
# 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.
fontname += '-' + subFamily
# rename font
def replace_all(text, dic):
for i, j in dic.iteritems():
text = text.replace(i, j)
return text
def make_sure_path_exists(path):
try:
os.makedirs(path)
except OSError as exception:
if exception.errno != errno.EEXIST:
raise
make_sure_path_exists(args.outputdir)
# comply with SIL Open Font License (OFL)
reservedFontNameReplacements = {
'source' : 'sauce',
'Source' : 'Sauce',
'hermit' : 'hurmit',
'Hermit' : 'Hurmit',
'fira' : 'fura',
'Fira' : 'Fura',
'hack' : 'knack',
'Hack' : 'Knack',
'hasklig' : 'hasklug',
'hasklig' : 'hasklug',
'Share' : 'Shure',
'share' : 'shure'
}
projectInfo = "Patched with '" + projectName + " Patcher' (https://github.com/ryanoasis/nerd-fonts)"
sourceFont.familyname = replace_all(familyname, reservedFontNameReplacements)
sourceFont.fullname = replace_all(fullname, reservedFontNameReplacements)
sourceFont.fontname = replace_all(fontname, reservedFontNameReplacements)
sourceFont.appendSFNTName('English (US)', 'Preferred Family', sourceFont.familyname)
sourceFont.appendSFNTName('English (US)', 'Compatible Full', sourceFont.fullname)
sourceFont.appendSFNTName('English (US)', 'SubFamily', subFamily)
sourceFont.comment = projectInfo
sourceFont.fontlog = projectInfo + "\n\n" + changelog.read()
# todo version not being set for all font types (e.g. ttf)
#print "Version was " + sourceFont.version
sourceFont.version += ";" + projectName + " " + version
#print "Version now is " + sourceFont.version
# Prevent glyph encoding position conflicts between glyph sets
octiconsExactEncodingPosition = True
if args.fontawesome and args.octicons:
octiconsExactEncodingPosition = False
fontlinuxExactEncodingPosition = True
if args.fontawesome or args.octicons:
fontlinuxExactEncodingPosition = False
# 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, 'GlyphsToScale': [ (0xe6bd, 0xe6c3), ] }
FONTA_SCALE_LIST = { 'ScaleGlyph': 0xF17A, 'GlyphsToScale': [ 0xf005, 0xf006, (0xf026, 0xf028), 0xf02b, 0xf02c, (0xf031, 0xf035), (0xf044, 0xf054), (0xf060, 0xf063), 0xf077, 0xf078, 0xf07d, 0xf07e, 0xf089, (0xf0d7, 0xf0da), (0xf0dc, 0xf0de), (0xf100, 0xf107), 0xf141, 0xf142, (0xf153, 0xf15a), (0xf175, 0xf178), 0xf182, 0xf183, (0xf221, 0xf22d), (0xf255, 0xf25b), ] }
OCTI_SCALE_LIST = { 'ScaleGlyph': 0xF02E, 'GlyphsToScale': [ (0xf03d, 0xf040), 0xf044, (0xf051, 0xf053), 0xf05a, 0xf05b, 0xf071, 0xf078, (0xf09f, 0xf0aa), 0xf0ca, ] }
# Define the character ranges
# Symbol font ranges
PATCH_SET = [
{ 'Enabled': True, 'Filename': "original-source.otf", 'Exact': False,'SymStart': 0xE4FA, 'SymEnd': 0xE52A, 'SrcStart': 0xE5FA,'SrcEnd': 0xE62B,'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT },
{ 'Enabled': True, 'Filename': "devicons.ttf", 'Exact': False,'SymStart': 0xE600, 'SymEnd': 0xE6C5, 'SrcStart': 0xE700,'SrcEnd': 0xE7C5,'ScaleGlyph': DEVI_SCALE_LIST,'Attributes': SYM_ATTR_DEFAULT },
{ 'Enabled': args.powerline, 'Filename': "PowerlineSymbols.otf", 'Exact': True, 'SymStart': 0xE0A0, 'SymEnd': 0xE0A2, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE },
{ 'Enabled': args.powerline, 'Filename': "PowerlineSymbols.otf", 'Exact': True, 'SymStart': 0xE0B0, 'SymEnd': 0xE0B3, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE },
{ 'Enabled': args.powerlineextra, 'Filename': "PowerlineExtraSymbols.otf",'Exact': True, 'SymStart': 0xE0A3, 'SymEnd': 0xE0A3, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE },
{ 'Enabled': args.powerlineextra, 'Filename': "PowerlineExtraSymbols.otf",'Exact': True, 'SymStart': 0xE0B4, 'SymEnd': 0xE0C8, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE },
{ 'Enabled': args.powerlineextra, 'Filename': "PowerlineExtraSymbols.otf",'Exact': True, 'SymStart': 0xE0CC, 'SymEnd': 0xE0D4, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_POWERLINE },
{ 'Enabled': args.pomicons, 'Filename': "Pomicons.otf", 'Exact': True, 'SymStart': 0xE000, 'SymEnd': 0xE00A, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT },
{ 'Enabled': args.fontawesome, 'Filename': "FontAwesome.otf", 'Exact': True, 'SymStart': 0xF000, 'SymEnd': 0xF2E0, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': FONTA_SCALE_LIST,'Attributes': SYM_ATTR_FONTA },
{ 'Enabled': args.fontawesomeextension, 'Filename': "font-awesome-extension.ttf", 'Exact': False, 'SymStart': 0xE000, 'SymEnd': 0xE0A9, 'SrcStart': 0xE200, 'SrcEnd': 0xE2A9, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT }, # Maximize
{ 'Enabled': args.fontlinux, 'Filename': "font-linux.ttf", 'Exact': fontlinuxExactEncodingPosition, 'SymStart': 0xF100, 'SymEnd': 0xF115, 'SrcStart': 0xF300, 'SrcEnd': 0xF315, 'ScaleGlyph': None, 'Attributes': SYM_ATTR_DEFAULT },
{ 'Enabled': args.pomicons, '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': args.pomicons, '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': args.octicons, 'Filename': "octicons.ttf", 'Exact': octiconsExactEncodingPosition, 'SymStart': 0xF000, 'SymEnd': 0xF105, 'SrcStart': 0xF400, 'SrcEnd': 0xF505, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT }, # Magnifying glass
{ 'Enabled': args.octicons, 'Filename': "octicons.ttf", 'Exact': octiconsExactEncodingPosition, 'SymStart': 0x2665, 'SymEnd': 0x2665, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT }, # Heart
{ 'Enabled': args.octicons, 'Filename': "octicons.ttf", 'Exact': octiconsExactEncodingPosition, 'SymStart': 0X26A1, 'SymEnd': 0X26A1, 'SrcStart': None, 'SrcEnd': None, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT }, # Zap
{ 'Enabled': args.octicons, 'Filename': "octicons.ttf", 'Exact': octiconsExactEncodingPosition, 'SymStart': 0xF27C, 'SymEnd': 0xF27C, 'SrcStart': 0xF67C, 'SrcEnd': 0xF67C, 'ScaleGlyph': OCTI_SCALE_LIST, 'Attributes': SYM_ATTR_DEFAULT }, # Desktop
{ 'Enabled': args.custom, 'Filename': args.custom, 'Exact': True, 'SymStart': 0x0000, 'SymEnd': 0x0000, 'SrcStart': 0x0000, 'SrcEnd': 0x0000, 'ScaleGlyph': None, 'Attributes': CUSTOM_ATTR },
]
# 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 (sourceFont.os2_winascent + sourceFont.os2_windescent) % 2 != 0:
sourceFont.os2_winascent += 1
# Make the line size identical for windows and mac
sourceFont.hhea_ascent = sourceFont.os2_winascent
sourceFont.hhea_descent = -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.
sourceFont.hhea_linegap = 0
sourceFont.os2_typolinegap = 0
# Initial font dimensions
font_dim = {
'xmin' : 0,
'ymin' : -sourceFont.os2_windescent,
'xmax' : 0,
'ymax' : sourceFont.os2_winascent,
'width' : 0,
'height': 0,
}
# 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(0x00, 0x17f):
try:
(xmin, ymin, xmax, ymax) = sourceFont[glyph].boundingBox()
except TypeError:
continue
if font_dim['width'] < sourceFont[glyph].width:
font_dim['width'] = sourceFont[glyph].width
if xmax > font_dim['xmax']: font_dim['xmax'] = xmax
# Calculate font height
font_dim['height'] = abs(font_dim['ymin']) + font_dim['ymax']
# Update the font encoding to ensure that the Unicode glyphs are available.
sourceFont.encoding = 'UnicodeFull'
# Fetch this property before adding outlines
onlybitmaps = sourceFont.onlybitmaps
def get_dim(glyph):
bbox = glyph.boundingBox()
return {
'xmin' : bbox[0],
'ymin' : bbox[1],
'xmax' : bbox[2],
'ymax' : bbox[3],
'width' : bbox[2] + (-bbox[0]),
'height': bbox[3] + (-bbox[1]),
}
def set_width(sourceFont, width):
sourceFont.selection.all()
for glyph in sourceFont.selection.byGlyphs:
glyph.width = width
def get_scale_factor(font_dim, 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 = font_dim['width'] / sym_dim['width']
# font_dim['height'] represents total line height, keep our symbols sized based upon font's em
scale_ratio_y = sourceFont.em / 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 use_scale_glyph( unicode_value, glyph_list ):
for i in glyph_list:
if isinstance(i, tuple):
if unicode_value >= i[0] and unicode_value <= i[1]:
return True
else:
if unicode_value == i:
return True
return False
def copy_glyphs(sourceFont, sourceFontStart, sourceFontEnd, symbolFont, symbolFontStart, symbolFontEnd, exactEncoding, scaleGlyph, attributes):
careful = False
if args.careful:
careful = True
if exactEncoding is False:
sourceFontList = []
sourceFontCounter = 0
for i in xrange(sourceFontStart, sourceFontEnd + 1):
sourceFontList.append(format(i, 'X'))
scale_factor = 0
if scaleGlyph:
sym_dim = get_dim(symbolFont[scaleGlyph['ScaleGlyph']])
scale_factor = get_scale_factor(font_dim, sym_dim)
# 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()
sourceFont.selection.all()
careful = True
else:
symbolFont.selection.select(("ranges","unicode"),symbolFontStart,symbolFontEnd)
sourceFont.selection.select(("ranges","unicode"),sourceFontStart,sourceFontEnd)
for sym_glyph in symbolFont.selection.byGlyphs:
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
currentSourceFontGlyph = sym_glyph.encoding
# Save as a hex string without the '0x' prefix
copiedToSlot = format(sym_glyph.unicode, 'X')
else:
# use source font defined hex values based on passed in start and end
# convince that this string really is a hex:
currentSourceFontGlyph = int("0x" + sourceFontList[sourceFontCounter], 16)
copiedToSlot = sourceFontList[sourceFontCounter]
sourceFontCounter += 1
if int(copiedToSlot, 16) < 0:
print "Found invalid glyph slot number. Skipping."
continue
if args.quiet == False:
print "Updating glyph: " + str(sym_glyph) + " " + str(sym_glyph.glyphname) + " putting at: " + copiedToSlot
# Prepare symbol glyph dimensions
sym_dim = get_dim(sym_glyph)
# check if a glyph already exists in this location
if careful or 'careful' in sym_attr['params']:
if copiedToSlot.startswith("uni"):
copiedToSlot = copiedToSlot[3:]
codepoint = int("0x" + copiedToSlot, 16)
if codepoint in sourceFont:
if args.quiet == False:
print " Found existing Glyph at "+ copiedToSlot +". Skipping..."
# We don't want to touch anything so move to next Glyph
continue
# 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
sourceFont.selection.select(currentSourceFontGlyph)
sourceFont.paste()
sourceFont[currentSourceFontGlyph].glyphname = sym_glyph.glyphname
# 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 args.single and sym_dim['width'] and sym_dim['height']:
scale_ratio_x = 1
scale_ratio_y = 1
# 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':
if scale_factor and use_scale_glyph(sym_glyph.unicode, scaleGlyph['GlyphsToScale'] ):
# We want to preserve the relative size of each glyph to other glyphs
# in the same symbol font.
scale_ratio_x = scale_factor
scale_ratio_y = scale_factor
else:
# In this case, each glyph is sized independantly to each other
scale_ratio_x = get_scale_factor(font_dim, 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 = font_dim['width'] / sym_dim['width']
if 'y' in sym_attr['stretch']:
# Stretch the glyph vertically to total line height (good for powerline separators)
scale_ratio_y = font_dim['height'] / sym_dim['height']
if scale_ratio_x != 1 or scale_ratio_y != 1:
if 'overlap' in sym_attr['params']:
scale_ratio_x *= 1+sym_attr['params']['overlap']
scale_ratio_y *= 1+sym_attr['params']['overlap']
sourceFont.transform(psMat.scale(scale_ratio_x, scale_ratio_y))
# Use the dimensions from the newly pasted and stretched glyph
sym_dim = get_dim(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 = font_dim['ymax'] - (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 = font_dim['xmin']-sym_dim['xmin']
if sym_attr['align'] == 'c':
# Center align
x_align_distance += (font_dim['width']/2) - (sym_dim['width']/2)
elif sym_attr['align'] == 'r':
# Right align
x_align_distance += font_dim['width'] - sym_dim['width']
if 'overlap' in sym_attr['params']:
overlap_width = font_dim['width'] * sym_attr['params']['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)
sourceFont.transform(align_matrix)
if args.single:
# Ensure 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.
sourceFont[currentSourceFontGlyph].width = font_dim['width']
# reset selection so iteration works propertly @todo fix? rookie misunderstanding?
# This is likely needed because the selection was changed when the glyph was copy/pasted
if symbolFontStart == 0:
symbolFont.selection.all()
else:
symbolFont.selection.select(("ranges","unicode"),symbolFontStart,symbolFontEnd)
# end for
return
if args.extension == "":
extension = os.path.splitext(sourceFont.path)[1]
else:
extension = '.'+args.extension
if args.single and extension == '.ttf':
# 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.
# This is only a problem with ttf files, otf files seem to be okay.
set_width(sourceFont, font_dim['width'])
# Prevent opening and closing the fontforge font. Makes things faster when patching
# multiple ranges using the same symbol font.
PreviousSymbolFilename = ""
symfont = None
for patch in 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
symfont = fontforge.open("src/glyphs/"+patch['Filename'])
# Match the symbol font size to the source font size
symfont.em = 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']
copy_glyphs(sourceFont, SrcStart, SrcEnd, symfont, patch['SymStart'], patch['SymEnd'], patch['Exact'], patch['ScaleGlyph'], patch['Attributes'])
if symfont:
symfont.close()
# the `PfEd-comments` flag is required for Fontforge to save
# '.comment' and '.fontlog'.
sourceFont.generate(args.outputdir + "/" + sourceFont.fullname + extension, flags=('opentype', 'PfEd-comments'))
print "Generated: " + sourceFont.fullname
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