| from __future__ import print_function |
| |
| import os |
| import textwrap |
| from xml.etree import ElementTree |
| from fontTools.ttLib import TTFont, newTable |
| from fontTools.misc.psCharStrings import T2CharString |
| from fontTools.ttLib.tables.otTables import GSUB,\ |
| ScriptList, ScriptRecord, Script, DefaultLangSys,\ |
| FeatureList, FeatureRecord, Feature,\ |
| LookupList, Lookup, AlternateSubst, SingleSubst |
| |
| # paths |
| directory = os.path.dirname(__file__) |
| shellSourcePath = os.path.join(directory, "gsubtest-shell.ttx") |
| shellTempPath = os.path.join(directory, "gsubtest-shell.otf") |
| featureList = os.path.join(directory, "gsubtest-features.txt") |
| javascriptData = os.path.join(directory, "gsubtest-features.js") |
| outputPath = os.path.join(os.path.dirname(directory), "gsubtest-lookup%d") |
| |
| baseCodepoint = 0xe000 |
| |
| # ------- |
| # Features |
| # ------- |
| |
| f = open(featureList, "rb") |
| text = f.read() |
| f.close() |
| mapping = [] |
| for line in text.splitlines(): |
| line = line.strip() |
| if not line: |
| continue |
| if line.startswith("#"): |
| continue |
| # parse |
| values = line.split("\t") |
| tag = values.pop(0) |
| mapping.append(tag); |
| |
| # -------- |
| # Outlines |
| # -------- |
| |
| def addGlyphToCFF(glyphName=None, program=None, private=None, globalSubrs=None, charStringsIndex=None, topDict=None, charStrings=None): |
| charString = T2CharString(program=program, private=private, globalSubrs=globalSubrs) |
| charStringsIndex.append(charString) |
| glyphID = len(topDict.charset) |
| charStrings.charStrings[glyphName] = glyphID |
| topDict.charset.append(glyphName) |
| |
| def makeLookup1(): |
| # make a variation of the shell TTX data |
| f = open(shellSourcePath) |
| ttxData = f.read() |
| f.close() |
| ttxData = ttxData.replace("__familyName__", "gsubtest-lookup1") |
| tempShellSourcePath = shellSourcePath + ".temp" |
| f = open(tempShellSourcePath, "wb") |
| f.write(ttxData) |
| f.close() |
| |
| # compile the shell |
| shell = TTFont(sfntVersion="OTTO") |
| shell.importXML(tempShellSourcePath) |
| shell.save(shellTempPath) |
| os.remove(tempShellSourcePath) |
| |
| # load the shell |
| shell = TTFont(shellTempPath) |
| |
| # grab the PASS and FAIL data |
| hmtx = shell["hmtx"] |
| glyphSet = shell.getGlyphSet() |
| |
| failGlyph = glyphSet["F"] |
| failGlyph.decompile() |
| failGlyphProgram = list(failGlyph.program) |
| failGlyphMetrics = hmtx["F"] |
| |
| passGlyph = glyphSet["P"] |
| passGlyph.decompile() |
| passGlyphProgram = list(passGlyph.program) |
| passGlyphMetrics = hmtx["P"] |
| |
| # grab some tables |
| hmtx = shell["hmtx"] |
| cmap = shell["cmap"] |
| |
| # start the glyph order |
| existingGlyphs = [".notdef", "space", "F", "P"] |
| glyphOrder = list(existingGlyphs) |
| |
| # start the CFF |
| cff = shell["CFF "].cff |
| globalSubrs = cff.GlobalSubrs |
| topDict = cff.topDictIndex[0] |
| topDict.charset = existingGlyphs |
| private = topDict.Private |
| charStrings = topDict.CharStrings |
| charStringsIndex = charStrings.charStringsIndex |
| |
| features = sorted(mapping) |
| |
| # build the outline, hmtx and cmap data |
| cp = baseCodepoint |
| for index, tag in enumerate(features): |
| |
| # tag.pass |
| glyphName = "%s.pass" % tag |
| glyphOrder.append(glyphName) |
| addGlyphToCFF( |
| glyphName=glyphName, |
| program=passGlyphProgram, |
| private=private, |
| globalSubrs=globalSubrs, |
| charStringsIndex=charStringsIndex, |
| topDict=topDict, |
| charStrings=charStrings |
| ) |
| hmtx[glyphName] = passGlyphMetrics |
| |
| for table in cmap.tables: |
| if table.format == 4: |
| table.cmap[cp] = glyphName |
| else: |
| raise NotImplementedError("Unsupported cmap table format: %d" % table.format) |
| cp += 1 |
| |
| # tag.fail |
| glyphName = "%s.fail" % tag |
| glyphOrder.append(glyphName) |
| addGlyphToCFF( |
| glyphName=glyphName, |
| program=failGlyphProgram, |
| private=private, |
| globalSubrs=globalSubrs, |
| charStringsIndex=charStringsIndex, |
| topDict=topDict, |
| charStrings=charStrings |
| ) |
| hmtx[glyphName] = failGlyphMetrics |
| |
| for table in cmap.tables: |
| if table.format == 4: |
| table.cmap[cp] = glyphName |
| else: |
| raise NotImplementedError("Unsupported cmap table format: %d" % table.format) |
| |
| # bump this up so that the sequence is the same as the lookup 3 font |
| cp += 3 |
| |
| # set the glyph order |
| shell.setGlyphOrder(glyphOrder) |
| |
| # start the GSUB |
| shell["GSUB"] = newTable("GSUB") |
| gsub = shell["GSUB"].table = GSUB() |
| gsub.Version = 1.0 |
| |
| # make a list of all the features we will make |
| featureCount = len(features) |
| |
| # set up the script list |
| scriptList = gsub.ScriptList = ScriptList() |
| scriptList.ScriptCount = 1 |
| scriptList.ScriptRecord = [] |
| scriptRecord = ScriptRecord() |
| scriptList.ScriptRecord.append(scriptRecord) |
| scriptRecord.ScriptTag = "DFLT" |
| script = scriptRecord.Script = Script() |
| defaultLangSys = script.DefaultLangSys = DefaultLangSys() |
| defaultLangSys.FeatureCount = featureCount |
| defaultLangSys.FeatureIndex = range(defaultLangSys.FeatureCount) |
| defaultLangSys.ReqFeatureIndex = 65535 |
| defaultLangSys.LookupOrder = None |
| script.LangSysCount = 0 |
| script.LangSysRecord = [] |
| |
| # set up the feature list |
| featureList = gsub.FeatureList = FeatureList() |
| featureList.FeatureCount = featureCount |
| featureList.FeatureRecord = [] |
| for index, tag in enumerate(features): |
| # feature record |
| featureRecord = FeatureRecord() |
| featureRecord.FeatureTag = tag |
| feature = featureRecord.Feature = Feature() |
| featureList.FeatureRecord.append(featureRecord) |
| # feature |
| feature.FeatureParams = None |
| feature.LookupCount = 1 |
| feature.LookupListIndex = [index] |
| |
| # write the lookups |
| lookupList = gsub.LookupList = LookupList() |
| lookupList.LookupCount = featureCount |
| lookupList.Lookup = [] |
| for tag in features: |
| # lookup |
| lookup = Lookup() |
| lookup.LookupType = 1 |
| lookup.LookupFlag = 0 |
| lookup.SubTableCount = 1 |
| lookup.SubTable = [] |
| lookupList.Lookup.append(lookup) |
| # subtable |
| subtable = SingleSubst() |
| subtable.Format = 2 |
| subtable.LookupType = 1 |
| subtable.mapping = { |
| "%s.pass" % tag : "%s.fail" % tag, |
| "%s.fail" % tag : "%s.pass" % tag, |
| } |
| lookup.SubTable.append(subtable) |
| |
| path = outputPath % 1 + ".otf" |
| if os.path.exists(path): |
| os.remove(path) |
| shell.save(path) |
| |
| # get rid of the shell |
| if os.path.exists(shellTempPath): |
| os.remove(shellTempPath) |
| |
| def makeLookup3(): |
| # make a variation of the shell TTX data |
| f = open(shellSourcePath) |
| ttxData = f.read() |
| f.close() |
| ttxData = ttxData.replace("__familyName__", "gsubtest-lookup3") |
| tempShellSourcePath = shellSourcePath + ".temp" |
| f = open(tempShellSourcePath, "wb") |
| f.write(ttxData) |
| f.close() |
| |
| # compile the shell |
| shell = TTFont(sfntVersion="OTTO") |
| shell.importXML(tempShellSourcePath) |
| shell.save(shellTempPath) |
| os.remove(tempShellSourcePath) |
| |
| # load the shell |
| shell = TTFont(shellTempPath) |
| |
| # grab the PASS and FAIL data |
| hmtx = shell["hmtx"] |
| glyphSet = shell.getGlyphSet() |
| |
| failGlyph = glyphSet["F"] |
| failGlyph.decompile() |
| failGlyphProgram = list(failGlyph.program) |
| failGlyphMetrics = hmtx["F"] |
| |
| passGlyph = glyphSet["P"] |
| passGlyph.decompile() |
| passGlyphProgram = list(passGlyph.program) |
| passGlyphMetrics = hmtx["P"] |
| |
| # grab some tables |
| hmtx = shell["hmtx"] |
| cmap = shell["cmap"] |
| |
| # start the glyph order |
| existingGlyphs = [".notdef", "space", "F", "P"] |
| glyphOrder = list(existingGlyphs) |
| |
| # start the CFF |
| cff = shell["CFF "].cff |
| globalSubrs = cff.GlobalSubrs |
| topDict = cff.topDictIndex[0] |
| topDict.charset = existingGlyphs |
| private = topDict.Private |
| charStrings = topDict.CharStrings |
| charStringsIndex = charStrings.charStringsIndex |
| |
| features = sorted(mapping) |
| |
| # build the outline, hmtx and cmap data |
| cp = baseCodepoint |
| for index, tag in enumerate(features): |
| |
| # tag.pass |
| glyphName = "%s.pass" % tag |
| glyphOrder.append(glyphName) |
| addGlyphToCFF( |
| glyphName=glyphName, |
| program=passGlyphProgram, |
| private=private, |
| globalSubrs=globalSubrs, |
| charStringsIndex=charStringsIndex, |
| topDict=topDict, |
| charStrings=charStrings |
| ) |
| hmtx[glyphName] = passGlyphMetrics |
| |
| # tag.fail |
| glyphName = "%s.fail" % tag |
| glyphOrder.append(glyphName) |
| addGlyphToCFF( |
| glyphName=glyphName, |
| program=failGlyphProgram, |
| private=private, |
| globalSubrs=globalSubrs, |
| charStringsIndex=charStringsIndex, |
| topDict=topDict, |
| charStrings=charStrings |
| ) |
| hmtx[glyphName] = failGlyphMetrics |
| |
| # tag.default |
| glyphName = "%s.default" % tag |
| glyphOrder.append(glyphName) |
| addGlyphToCFF( |
| glyphName=glyphName, |
| program=passGlyphProgram, |
| private=private, |
| globalSubrs=globalSubrs, |
| charStringsIndex=charStringsIndex, |
| topDict=topDict, |
| charStrings=charStrings |
| ) |
| hmtx[glyphName] = passGlyphMetrics |
| |
| for table in cmap.tables: |
| if table.format == 4: |
| table.cmap[cp] = glyphName |
| else: |
| raise NotImplementedError("Unsupported cmap table format: %d" % table.format) |
| cp += 1 |
| |
| # tag.alt1,2,3 |
| for i in range(1,4): |
| glyphName = "%s.alt%d" % (tag, i) |
| glyphOrder.append(glyphName) |
| addGlyphToCFF( |
| glyphName=glyphName, |
| program=failGlyphProgram, |
| private=private, |
| globalSubrs=globalSubrs, |
| charStringsIndex=charStringsIndex, |
| topDict=topDict, |
| charStrings=charStrings |
| ) |
| hmtx[glyphName] = failGlyphMetrics |
| for table in cmap.tables: |
| if table.format == 4: |
| table.cmap[cp] = glyphName |
| else: |
| raise NotImplementedError("Unsupported cmap table format: %d" % table.format) |
| cp += 1 |
| |
| # set the glyph order |
| shell.setGlyphOrder(glyphOrder) |
| |
| # start the GSUB |
| shell["GSUB"] = newTable("GSUB") |
| gsub = shell["GSUB"].table = GSUB() |
| gsub.Version = 1.0 |
| |
| # make a list of all the features we will make |
| featureCount = len(features) |
| |
| # set up the script list |
| scriptList = gsub.ScriptList = ScriptList() |
| scriptList.ScriptCount = 1 |
| scriptList.ScriptRecord = [] |
| scriptRecord = ScriptRecord() |
| scriptList.ScriptRecord.append(scriptRecord) |
| scriptRecord.ScriptTag = "DFLT" |
| script = scriptRecord.Script = Script() |
| defaultLangSys = script.DefaultLangSys = DefaultLangSys() |
| defaultLangSys.FeatureCount = featureCount |
| defaultLangSys.FeatureIndex = range(defaultLangSys.FeatureCount) |
| defaultLangSys.ReqFeatureIndex = 65535 |
| defaultLangSys.LookupOrder = None |
| script.LangSysCount = 0 |
| script.LangSysRecord = [] |
| |
| # set up the feature list |
| featureList = gsub.FeatureList = FeatureList() |
| featureList.FeatureCount = featureCount |
| featureList.FeatureRecord = [] |
| for index, tag in enumerate(features): |
| # feature record |
| featureRecord = FeatureRecord() |
| featureRecord.FeatureTag = tag |
| feature = featureRecord.Feature = Feature() |
| featureList.FeatureRecord.append(featureRecord) |
| # feature |
| feature.FeatureParams = None |
| feature.LookupCount = 1 |
| feature.LookupListIndex = [index] |
| |
| # write the lookups |
| lookupList = gsub.LookupList = LookupList() |
| lookupList.LookupCount = featureCount |
| lookupList.Lookup = [] |
| for tag in features: |
| # lookup |
| lookup = Lookup() |
| lookup.LookupType = 3 |
| lookup.LookupFlag = 0 |
| lookup.SubTableCount = 1 |
| lookup.SubTable = [] |
| lookupList.Lookup.append(lookup) |
| # subtable |
| subtable = AlternateSubst() |
| subtable.Format = 1 |
| subtable.LookupType = 3 |
| subtable.alternates = { |
| "%s.default" % tag : ["%s.fail" % tag, "%s.fail" % tag, "%s.fail" % tag], |
| "%s.alt1" % tag : ["%s.pass" % tag, "%s.fail" % tag, "%s.fail" % tag], |
| "%s.alt2" % tag : ["%s.fail" % tag, "%s.pass" % tag, "%s.fail" % tag], |
| "%s.alt3" % tag : ["%s.fail" % tag, "%s.fail" % tag, "%s.pass" % tag] |
| } |
| lookup.SubTable.append(subtable) |
| |
| path = outputPath % 3 + ".otf" |
| if os.path.exists(path): |
| os.remove(path) |
| shell.save(path) |
| |
| # get rid of the shell |
| if os.path.exists(shellTempPath): |
| os.remove(shellTempPath) |
| |
| def makeJavascriptData(): |
| features = sorted(mapping) |
| outStr = [] |
| |
| outStr.append("") |
| outStr.append("/* This file is autogenerated by makegsubfonts.py */") |
| outStr.append("") |
| outStr.append("/* ") |
| outStr.append(" Features defined in gsubtest fonts with associated base") |
| outStr.append(" codepoints for each feature:") |
| outStr.append("") |
| outStr.append(" cp = codepoint for feature featX") |
| outStr.append("") |
| outStr.append(" cp default PASS") |
| outStr.append(" cp featX=1 FAIL") |
| outStr.append(" cp featX=2 FAIL") |
| outStr.append("") |
| outStr.append(" cp+1 default FAIL") |
| outStr.append(" cp+1 featX=1 PASS") |
| outStr.append(" cp+1 featX=2 FAIL") |
| outStr.append("") |
| outStr.append(" cp+2 default FAIL") |
| outStr.append(" cp+2 featX=1 FAIL") |
| outStr.append(" cp+2 featX=2 PASS") |
| outStr.append("") |
| outStr.append("*/") |
| outStr.append("") |
| outStr.append("var gFeatures = {"); |
| cp = baseCodepoint |
| |
| taglist = [] |
| for tag in features: |
| taglist.append("\"%s\": 0x%x" % (tag, cp)) |
| cp += 4 |
| |
| outStr.append(textwrap.fill(", ".join(taglist), initial_indent=" ", subsequent_indent=" ")) |
| outStr.append("};"); |
| outStr.append(""); |
| |
| if os.path.exists(javascriptData): |
| os.remove(javascriptData) |
| |
| f = open(javascriptData, "wb") |
| f.write("\n".join(outStr)) |
| f.close() |
| |
| |
| # build fonts |
| |
| print("Making lookup type 1 font...") |
| makeLookup1() |
| |
| print("Making lookup type 3 font...") |
| makeLookup3() |
| |
| # output javascript data |
| |
| print("Making javascript data file...") |
| makeJavascriptData() |
