[merge] Remove most 'from .. import *'
This commit is contained in:
Behdad Esfahbod
parent
deaf30d17c
commit
7c542684be
@ -3,11 +3,11 @@
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# Google Author(s): Behdad Esfahbod, Roozbeh Pournader
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from fontTools import ttLib
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from fontTools.merge.base import *
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from fontTools.merge.cmap import *
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from fontTools.merge.layout import *
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from fontTools.merge.options import *
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from fontTools.merge.util import *
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import fontTools.merge.base
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from fontTools.merge.cmap import computeMegaGlyphOrder, computeMegaCmap, renameCFFCharStrings
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from fontTools.merge.layout import layoutPreMerge, layoutPostMerge
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from fontTools.merge.options import Options
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import fontTools.merge.tables
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from fontTools.misc.loggingTools import Timer
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from functools import reduce
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import sys
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@ -2,305 +2,75 @@
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#
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# Google Author(s): Behdad Esfahbod, Roozbeh Pournader
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from fontTools import ttLib, cffLib
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from fontTools.ttLib.tables.DefaultTable import DefaultTable
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from fontTools.merge.cmap import *
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from fontTools.merge.util import *
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import logging
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ttLib.getTableClass('maxp').mergeMap = {
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'*': max,
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'tableTag': equal,
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'tableVersion': equal,
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'numGlyphs': sum,
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'maxStorage': first,
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'maxFunctionDefs': first,
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'maxInstructionDefs': first,
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# TODO When we correctly merge hinting data, update these values:
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# maxFunctionDefs, maxInstructionDefs, maxSizeOfInstructions
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}
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headFlagsMergeBitMap = {
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'size': 16,
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'*': bitwise_or,
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1: bitwise_and, # Baseline at y = 0
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2: bitwise_and, # lsb at x = 0
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3: bitwise_and, # Force ppem to integer values. FIXME?
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5: bitwise_and, # Font is vertical
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6: lambda bit: 0, # Always set to zero
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11: bitwise_and, # Font data is 'lossless'
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13: bitwise_and, # Optimized for ClearType
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14: bitwise_and, # Last resort font. FIXME? equal or first may be better
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15: lambda bit: 0, # Always set to zero
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}
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ttLib.getTableClass('head').mergeMap = {
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'tableTag': equal,
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'tableVersion': max,
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'fontRevision': max,
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'checkSumAdjustment': lambda lst: 0, # We need *something* here
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'magicNumber': equal,
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'flags': mergeBits(headFlagsMergeBitMap),
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'unitsPerEm': equal,
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'created': current_time,
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'modified': current_time,
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'xMin': min,
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'yMin': min,
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'xMax': max,
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'yMax': max,
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'macStyle': first,
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'lowestRecPPEM': max,
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'fontDirectionHint': lambda lst: 2,
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'indexToLocFormat': first,
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'glyphDataFormat': equal,
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}
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ttLib.getTableClass('hhea').mergeMap = {
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'*': equal,
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'tableTag': equal,
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'tableVersion': max,
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'ascent': max,
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'descent': min,
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'lineGap': max,
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'advanceWidthMax': max,
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'minLeftSideBearing': min,
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'minRightSideBearing': min,
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'xMaxExtent': max,
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'caretSlopeRise': first,
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'caretSlopeRun': first,
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'caretOffset': first,
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'numberOfHMetrics': recalculate,
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}
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ttLib.getTableClass('vhea').mergeMap = {
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'*': equal,
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'tableTag': equal,
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'tableVersion': max,
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'ascent': max,
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'descent': min,
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'lineGap': max,
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'advanceHeightMax': max,
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'minTopSideBearing': min,
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'minBottomSideBearing': min,
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'yMaxExtent': max,
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'caretSlopeRise': first,
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'caretSlopeRun': first,
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'caretOffset': first,
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'numberOfVMetrics': recalculate,
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}
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os2FsTypeMergeBitMap = {
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'size': 16,
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'*': lambda bit: 0,
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1: bitwise_or, # no embedding permitted
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2: bitwise_and, # allow previewing and printing documents
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3: bitwise_and, # allow editing documents
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8: bitwise_or, # no subsetting permitted
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9: bitwise_or, # no embedding of outlines permitted
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}
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def mergeOs2FsType(lst):
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lst = list(lst)
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if all(item == 0 for item in lst):
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return 0
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# Compute least restrictive logic for each fsType value
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for i in range(len(lst)):
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# unset bit 1 (no embedding permitted) if either bit 2 or 3 is set
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if lst[i] & 0x000C:
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lst[i] &= ~0x0002
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# set bit 2 (allow previewing) if bit 3 is set (allow editing)
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elif lst[i] & 0x0008:
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lst[i] |= 0x0004
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# set bits 2 and 3 if everything is allowed
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elif lst[i] == 0:
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lst[i] = 0x000C
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fsType = mergeBits(os2FsTypeMergeBitMap)(lst)
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# unset bits 2 and 3 if bit 1 is set (some font is "no embedding")
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if fsType & 0x0002:
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fsType &= ~0x000C
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return fsType
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log = logging.getLogger("fontTools.merge")
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ttLib.getTableClass('OS/2').mergeMap = {
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'*': first,
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'tableTag': equal,
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'version': max,
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'xAvgCharWidth': avg_int, # Apparently fontTools doesn't recalc this
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'fsType': mergeOs2FsType, # Will be overwritten
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'panose': first, # FIXME: should really be the first Latin font
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'ulUnicodeRange1': bitwise_or,
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'ulUnicodeRange2': bitwise_or,
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'ulUnicodeRange3': bitwise_or,
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'ulUnicodeRange4': bitwise_or,
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'fsFirstCharIndex': min,
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'fsLastCharIndex': max,
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'sTypoAscender': max,
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'sTypoDescender': min,
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'sTypoLineGap': max,
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'usWinAscent': max,
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'usWinDescent': max,
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# Version 1
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'ulCodePageRange1': onlyExisting(bitwise_or),
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'ulCodePageRange2': onlyExisting(bitwise_or),
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# Version 2, 3, 4
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'sxHeight': onlyExisting(max),
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'sCapHeight': onlyExisting(max),
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'usDefaultChar': onlyExisting(first),
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'usBreakChar': onlyExisting(first),
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'usMaxContext': onlyExisting(max),
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# version 5
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'usLowerOpticalPointSize': onlyExisting(min),
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'usUpperOpticalPointSize': onlyExisting(max),
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}
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def add_method(*clazzes, **kwargs):
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"""Returns a decorator function that adds a new method to one or
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more classes."""
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allowDefault = kwargs.get('allowDefaultTable', False)
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def wrapper(method):
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done = []
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for clazz in clazzes:
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if clazz in done: continue # Support multiple names of a clazz
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done.append(clazz)
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assert allowDefault or clazz != DefaultTable, 'Oops, table class not found.'
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assert method.__name__ not in clazz.__dict__, \
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"Oops, class '%s' has method '%s'." % (clazz.__name__, method.__name__)
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setattr(clazz, method.__name__, method)
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return None
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return wrapper
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@add_method(ttLib.getTableClass('OS/2'))
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def mergeObjects(lst):
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lst = [item for item in lst if item is not NotImplemented]
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if not lst:
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return NotImplemented
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lst = [item for item in lst if item is not None]
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if not lst:
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return None
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clazz = lst[0].__class__
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assert all(type(item) == clazz for item in lst), lst
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logic = clazz.mergeMap
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returnTable = clazz()
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returnDict = {}
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allKeys = set.union(set(), *(vars(table).keys() for table in lst))
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for key in allKeys:
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try:
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mergeLogic = logic[key]
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except KeyError:
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try:
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mergeLogic = logic['*']
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except KeyError:
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raise Exception("Don't know how to merge key %s of class %s" %
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(key, clazz.__name__))
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if mergeLogic is NotImplemented:
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continue
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value = mergeLogic(getattr(table, key, NotImplemented) for table in lst)
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if value is not NotImplemented:
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returnDict[key] = value
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returnTable.__dict__ = returnDict
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return returnTable
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@add_method(DefaultTable, allowDefaultTable=True)
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def merge(self, m, tables):
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DefaultTable.merge(self, m, tables)
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if self.version < 2:
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# bits 8 and 9 are reserved and should be set to zero
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self.fsType &= ~0x0300
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if self.version >= 3:
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# Only one of bits 1, 2, and 3 may be set. We already take
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# care of bit 1 implications in mergeOs2FsType. So unset
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# bit 2 if bit 3 is already set.
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if self.fsType & 0x0008:
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self.fsType &= ~0x0004
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return self
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if not hasattr(self, 'mergeMap'):
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log.info("Don't know how to merge '%s'.", self.tableTag)
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return NotImplemented
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ttLib.getTableClass('post').mergeMap = {
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'*': first,
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'tableTag': equal,
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'formatType': max,
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'isFixedPitch': min,
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'minMemType42': max,
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'maxMemType42': lambda lst: 0,
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'minMemType1': max,
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'maxMemType1': lambda lst: 0,
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'mapping': onlyExisting(sumDicts),
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'extraNames': lambda lst: [],
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}
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logic = self.mergeMap
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ttLib.getTableClass('vmtx').mergeMap = ttLib.getTableClass('hmtx').mergeMap = {
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'tableTag': equal,
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'metrics': sumDicts,
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}
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if isinstance(logic, dict):
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return m.mergeObjects(self, self.mergeMap, tables)
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else:
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return logic(tables)
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ttLib.getTableClass('name').mergeMap = {
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'tableTag': equal,
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'names': first, # FIXME? Does mixing name records make sense?
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}
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ttLib.getTableClass('loca').mergeMap = {
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'*': recalculate,
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'tableTag': equal,
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}
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ttLib.getTableClass('glyf').mergeMap = {
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'tableTag': equal,
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'glyphs': sumDicts,
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'glyphOrder': sumLists,
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}
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@add_method(ttLib.getTableClass('glyf'))
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def merge(self, m, tables):
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for i,table in enumerate(tables):
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for g in table.glyphs.values():
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if i:
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# Drop hints for all but first font, since
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# we don't map functions / CVT values.
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g.removeHinting()
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# Expand composite glyphs to load their
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# composite glyph names.
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if g.isComposite():
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g.expand(table)
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return DefaultTable.merge(self, m, tables)
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ttLib.getTableClass('prep').mergeMap = lambda self, lst: first(lst)
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ttLib.getTableClass('fpgm').mergeMap = lambda self, lst: first(lst)
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ttLib.getTableClass('cvt ').mergeMap = lambda self, lst: first(lst)
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ttLib.getTableClass('gasp').mergeMap = lambda self, lst: first(lst) # FIXME? Appears irreconcilable
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@add_method(ttLib.getTableClass('CFF '))
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def merge(self, m, tables):
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if any(hasattr(table, "FDSelect") for table in tables):
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raise NotImplementedError(
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"Merging CID-keyed CFF tables is not supported yet"
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)
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for table in tables:
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table.cff.desubroutinize()
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newcff = tables[0]
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newfont = newcff.cff[0]
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private = newfont.Private
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storedNamesStrings = []
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glyphOrderStrings = []
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glyphOrder = set(newfont.getGlyphOrder())
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for name in newfont.strings.strings:
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if name not in glyphOrder:
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storedNamesStrings.append(name)
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else:
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glyphOrderStrings.append(name)
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chrset = list(newfont.charset)
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newcs = newfont.CharStrings
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log.debug("FONT 0 CharStrings: %d.", len(newcs))
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for i, table in enumerate(tables[1:], start=1):
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font = table.cff[0]
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font.Private = private
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fontGlyphOrder = set(font.getGlyphOrder())
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for name in font.strings.strings:
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if name in fontGlyphOrder:
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glyphOrderStrings.append(name)
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cs = font.CharStrings
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gs = table.cff.GlobalSubrs
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log.debug("Font %d CharStrings: %d.", i, len(cs))
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chrset.extend(font.charset)
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if newcs.charStringsAreIndexed:
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for i, name in enumerate(cs.charStrings, start=len(newcs)):
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newcs.charStrings[name] = i
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newcs.charStringsIndex.items.append(None)
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for name in cs.charStrings:
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newcs[name] = cs[name]
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newfont.charset = chrset
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newfont.numGlyphs = len(chrset)
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newfont.strings.strings = glyphOrderStrings + storedNamesStrings
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return newcff
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@add_method(ttLib.getTableClass('cmap'))
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def merge(self, m, tables):
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# TODO Handle format=14.
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if not hasattr(m, 'cmap'):
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computeMegaCmap(m, tables)
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cmap = m.cmap
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cmapBmpOnly = {uni: gid for uni,gid in cmap.items() if uni <= 0xFFFF}
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self.tables = []
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module = ttLib.getTableModule('cmap')
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if len(cmapBmpOnly) != len(cmap):
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# format-12 required.
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cmapTable = module.cmap_classes[12](12)
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cmapTable.platformID = 3
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cmapTable.platEncID = 10
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cmapTable.language = 0
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cmapTable.cmap = cmap
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self.tables.append(cmapTable)
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# always create format-4
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cmapTable = module.cmap_classes[4](4)
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cmapTable.platformID = 3
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cmapTable.platEncID = 1
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cmapTable.language = 0
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cmapTable.cmap = cmapBmpOnly
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# ordered by platform then encoding
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self.tables.insert(0, cmapTable)
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self.tableVersion = 0
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self.numSubTables = len(self.tables)
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return self
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@ -2,7 +2,7 @@
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#
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# Google Author(s): Behdad Esfahbod, Roozbeh Pournader
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from fontTools.merge.unicode import *
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from fontTools.merge.unicode import is_Default_Ignorable
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from fontTools.pens.recordingPen import DecomposingRecordingPen
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import logging
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@ -52,7 +52,7 @@ def _glyphsAreSame(glyphSet1, glyphSet2, glyph1, glyph2,
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# Unicode BMP-only and Unicode Full Repertoire semantics.
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# Cf. OpenType spec for "Platform specific encodings":
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# https://docs.microsoft.com/en-us/typography/opentype/spec/name
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class CmapUnicodePlatEncodings:
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class _CmapUnicodePlatEncodings:
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BMP = {(4, 3, 1), (4, 0, 3), (4, 0, 4), (4, 0, 6)}
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FullRepertoire = {(12, 3, 10), (12, 0, 4), (12, 0, 6)}
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@ -68,9 +68,9 @@ def computeMegaCmap(merger, cmapTables):
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format12 = None
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for subtable in table.tables:
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properties = (subtable.format, subtable.platformID, subtable.platEncID)
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if properties in CmapUnicodePlatEncodings.BMP:
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if properties in _CmapUnicodePlatEncodings.BMP:
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format4 = subtable
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elif properties in CmapUnicodePlatEncodings.FullRepertoire:
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elif properties in _CmapUnicodePlatEncodings.FullRepertoire:
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format12 = subtable
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else:
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log.warning(
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@ -114,3 +114,16 @@ def computeMegaCmap(merger, cmapTables):
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# gid, because of another Unicode character.
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# TODO: Try harder to do something about these.
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log.warning("Dropped mapping from codepoint %#06X to glyphId '%s'", uni, gid)
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def renameCFFCharStrings(merger, glyphOrder, cffTable):
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"""Rename topDictIndex charStrings based on glyphOrder."""
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td = cffTable.cff.topDictIndex[0]
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charStrings = {}
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for i, v in enumerate(td.CharStrings.charStrings.values()):
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glyphName = glyphOrder[i]
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charStrings[glyphName] = v
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td.CharStrings.charStrings = charStrings
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td.charset = list(glyphOrder)
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@ -5,9 +5,13 @@
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from fontTools import ttLib
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from fontTools.ttLib.tables.DefaultTable import DefaultTable
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from fontTools.ttLib.tables import otTables
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from fontTools.merge.base import add_method, mergeObjects
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from fontTools.merge.util import *
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import logging
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log = logging.getLogger("fontTools.merge")
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def mergeLookupLists(lst):
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# TODO Do smarter merge.
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311
Lib/fontTools/merge/tables.py
Normal file
311
Lib/fontTools/merge/tables.py
Normal file
@ -0,0 +1,311 @@
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# Copyright 2013 Google, Inc. All Rights Reserved.
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#
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# Google Author(s): Behdad Esfahbod, Roozbeh Pournader
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from fontTools import ttLib, cffLib
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from fontTools.ttLib.tables.DefaultTable import DefaultTable
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from fontTools.merge.base import add_method, mergeObjects
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from fontTools.merge.cmap import computeMegaCmap
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from fontTools.merge.util import *
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import logging
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log = logging.getLogger("fontTools.merge")
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|
||||
|
||||
ttLib.getTableClass('maxp').mergeMap = {
|
||||
'*': max,
|
||||
'tableTag': equal,
|
||||
'tableVersion': equal,
|
||||
'numGlyphs': sum,
|
||||
'maxStorage': first,
|
||||
'maxFunctionDefs': first,
|
||||
'maxInstructionDefs': first,
|
||||
# TODO When we correctly merge hinting data, update these values:
|
||||
# maxFunctionDefs, maxInstructionDefs, maxSizeOfInstructions
|
||||
}
|
||||
|
||||
headFlagsMergeBitMap = {
|
||||
'size': 16,
|
||||
'*': bitwise_or,
|
||||
1: bitwise_and, # Baseline at y = 0
|
||||
2: bitwise_and, # lsb at x = 0
|
||||
3: bitwise_and, # Force ppem to integer values. FIXME?
|
||||
5: bitwise_and, # Font is vertical
|
||||
6: lambda bit: 0, # Always set to zero
|
||||
11: bitwise_and, # Font data is 'lossless'
|
||||
13: bitwise_and, # Optimized for ClearType
|
||||
14: bitwise_and, # Last resort font. FIXME? equal or first may be better
|
||||
15: lambda bit: 0, # Always set to zero
|
||||
}
|
||||
|
||||
ttLib.getTableClass('head').mergeMap = {
|
||||
'tableTag': equal,
|
||||
'tableVersion': max,
|
||||
'fontRevision': max,
|
||||
'checkSumAdjustment': lambda lst: 0, # We need *something* here
|
||||
'magicNumber': equal,
|
||||
'flags': mergeBits(headFlagsMergeBitMap),
|
||||
'unitsPerEm': equal,
|
||||
'created': current_time,
|
||||
'modified': current_time,
|
||||
'xMin': min,
|
||||
'yMin': min,
|
||||
'xMax': max,
|
||||
'yMax': max,
|
||||
'macStyle': first,
|
||||
'lowestRecPPEM': max,
|
||||
'fontDirectionHint': lambda lst: 2,
|
||||
'indexToLocFormat': first,
|
||||
'glyphDataFormat': equal,
|
||||
}
|
||||
|
||||
ttLib.getTableClass('hhea').mergeMap = {
|
||||
'*': equal,
|
||||
'tableTag': equal,
|
||||
'tableVersion': max,
|
||||
'ascent': max,
|
||||
'descent': min,
|
||||
'lineGap': max,
|
||||
'advanceWidthMax': max,
|
||||
'minLeftSideBearing': min,
|
||||
'minRightSideBearing': min,
|
||||
'xMaxExtent': max,
|
||||
'caretSlopeRise': first,
|
||||
'caretSlopeRun': first,
|
||||
'caretOffset': first,
|
||||
'numberOfHMetrics': recalculate,
|
||||
}
|
||||
|
||||
ttLib.getTableClass('vhea').mergeMap = {
|
||||
'*': equal,
|
||||
'tableTag': equal,
|
||||
'tableVersion': max,
|
||||
'ascent': max,
|
||||
'descent': min,
|
||||
'lineGap': max,
|
||||
'advanceHeightMax': max,
|
||||
'minTopSideBearing': min,
|
||||
'minBottomSideBearing': min,
|
||||
'yMaxExtent': max,
|
||||
'caretSlopeRise': first,
|
||||
'caretSlopeRun': first,
|
||||
'caretOffset': first,
|
||||
'numberOfVMetrics': recalculate,
|
||||
}
|
||||
|
||||
os2FsTypeMergeBitMap = {
|
||||
'size': 16,
|
||||
'*': lambda bit: 0,
|
||||
1: bitwise_or, # no embedding permitted
|
||||
2: bitwise_and, # allow previewing and printing documents
|
||||
3: bitwise_and, # allow editing documents
|
||||
8: bitwise_or, # no subsetting permitted
|
||||
9: bitwise_or, # no embedding of outlines permitted
|
||||
}
|
||||
|
||||
def mergeOs2FsType(lst):
|
||||
lst = list(lst)
|
||||
if all(item == 0 for item in lst):
|
||||
return 0
|
||||
|
||||
# Compute least restrictive logic for each fsType value
|
||||
for i in range(len(lst)):
|
||||
# unset bit 1 (no embedding permitted) if either bit 2 or 3 is set
|
||||
if lst[i] & 0x000C:
|
||||
lst[i] &= ~0x0002
|
||||
# set bit 2 (allow previewing) if bit 3 is set (allow editing)
|
||||
elif lst[i] & 0x0008:
|
||||
lst[i] |= 0x0004
|
||||
# set bits 2 and 3 if everything is allowed
|
||||
elif lst[i] == 0:
|
||||
lst[i] = 0x000C
|
||||
|
||||
fsType = mergeBits(os2FsTypeMergeBitMap)(lst)
|
||||
# unset bits 2 and 3 if bit 1 is set (some font is "no embedding")
|
||||
if fsType & 0x0002:
|
||||
fsType &= ~0x000C
|
||||
return fsType
|
||||
|
||||
|
||||
ttLib.getTableClass('OS/2').mergeMap = {
|
||||
'*': first,
|
||||
'tableTag': equal,
|
||||
'version': max,
|
||||
'xAvgCharWidth': avg_int, # Apparently fontTools doesn't recalc this
|
||||
'fsType': mergeOs2FsType, # Will be overwritten
|
||||
'panose': first, # FIXME: should really be the first Latin font
|
||||
'ulUnicodeRange1': bitwise_or,
|
||||
'ulUnicodeRange2': bitwise_or,
|
||||
'ulUnicodeRange3': bitwise_or,
|
||||
'ulUnicodeRange4': bitwise_or,
|
||||
'fsFirstCharIndex': min,
|
||||
'fsLastCharIndex': max,
|
||||
'sTypoAscender': max,
|
||||
'sTypoDescender': min,
|
||||
'sTypoLineGap': max,
|
||||
'usWinAscent': max,
|
||||
'usWinDescent': max,
|
||||
# Version 1
|
||||
'ulCodePageRange1': onlyExisting(bitwise_or),
|
||||
'ulCodePageRange2': onlyExisting(bitwise_or),
|
||||
# Version 2, 3, 4
|
||||
'sxHeight': onlyExisting(max),
|
||||
'sCapHeight': onlyExisting(max),
|
||||
'usDefaultChar': onlyExisting(first),
|
||||
'usBreakChar': onlyExisting(first),
|
||||
'usMaxContext': onlyExisting(max),
|
||||
# version 5
|
||||
'usLowerOpticalPointSize': onlyExisting(min),
|
||||
'usUpperOpticalPointSize': onlyExisting(max),
|
||||
}
|
||||
|
||||
@add_method(ttLib.getTableClass('OS/2'))
|
||||
def merge(self, m, tables):
|
||||
DefaultTable.merge(self, m, tables)
|
||||
if self.version < 2:
|
||||
# bits 8 and 9 are reserved and should be set to zero
|
||||
self.fsType &= ~0x0300
|
||||
if self.version >= 3:
|
||||
# Only one of bits 1, 2, and 3 may be set. We already take
|
||||
# care of bit 1 implications in mergeOs2FsType. So unset
|
||||
# bit 2 if bit 3 is already set.
|
||||
if self.fsType & 0x0008:
|
||||
self.fsType &= ~0x0004
|
||||
return self
|
||||
|
||||
ttLib.getTableClass('post').mergeMap = {
|
||||
'*': first,
|
||||
'tableTag': equal,
|
||||
'formatType': max,
|
||||
'isFixedPitch': min,
|
||||
'minMemType42': max,
|
||||
'maxMemType42': lambda lst: 0,
|
||||
'minMemType1': max,
|
||||
'maxMemType1': lambda lst: 0,
|
||||
'mapping': onlyExisting(sumDicts),
|
||||
'extraNames': lambda lst: [],
|
||||
}
|
||||
|
||||
ttLib.getTableClass('vmtx').mergeMap = ttLib.getTableClass('hmtx').mergeMap = {
|
||||
'tableTag': equal,
|
||||
'metrics': sumDicts,
|
||||
}
|
||||
|
||||
ttLib.getTableClass('name').mergeMap = {
|
||||
'tableTag': equal,
|
||||
'names': first, # FIXME? Does mixing name records make sense?
|
||||
}
|
||||
|
||||
ttLib.getTableClass('loca').mergeMap = {
|
||||
'*': recalculate,
|
||||
'tableTag': equal,
|
||||
}
|
||||
|
||||
ttLib.getTableClass('glyf').mergeMap = {
|
||||
'tableTag': equal,
|
||||
'glyphs': sumDicts,
|
||||
'glyphOrder': sumLists,
|
||||
}
|
||||
|
||||
@add_method(ttLib.getTableClass('glyf'))
|
||||
def merge(self, m, tables):
|
||||
for i,table in enumerate(tables):
|
||||
for g in table.glyphs.values():
|
||||
if i:
|
||||
# Drop hints for all but first font, since
|
||||
# we don't map functions / CVT values.
|
||||
g.removeHinting()
|
||||
# Expand composite glyphs to load their
|
||||
# composite glyph names.
|
||||
if g.isComposite():
|
||||
g.expand(table)
|
||||
return DefaultTable.merge(self, m, tables)
|
||||
|
||||
ttLib.getTableClass('prep').mergeMap = lambda self, lst: first(lst)
|
||||
ttLib.getTableClass('fpgm').mergeMap = lambda self, lst: first(lst)
|
||||
ttLib.getTableClass('cvt ').mergeMap = lambda self, lst: first(lst)
|
||||
ttLib.getTableClass('gasp').mergeMap = lambda self, lst: first(lst) # FIXME? Appears irreconcilable
|
||||
|
||||
@add_method(ttLib.getTableClass('CFF '))
|
||||
def merge(self, m, tables):
|
||||
|
||||
if any(hasattr(table, "FDSelect") for table in tables):
|
||||
raise NotImplementedError(
|
||||
"Merging CID-keyed CFF tables is not supported yet"
|
||||
)
|
||||
|
||||
for table in tables:
|
||||
table.cff.desubroutinize()
|
||||
|
||||
newcff = tables[0]
|
||||
newfont = newcff.cff[0]
|
||||
private = newfont.Private
|
||||
storedNamesStrings = []
|
||||
glyphOrderStrings = []
|
||||
glyphOrder = set(newfont.getGlyphOrder())
|
||||
|
||||
for name in newfont.strings.strings:
|
||||
if name not in glyphOrder:
|
||||
storedNamesStrings.append(name)
|
||||
else:
|
||||
glyphOrderStrings.append(name)
|
||||
|
||||
chrset = list(newfont.charset)
|
||||
newcs = newfont.CharStrings
|
||||
log.debug("FONT 0 CharStrings: %d.", len(newcs))
|
||||
|
||||
for i, table in enumerate(tables[1:], start=1):
|
||||
font = table.cff[0]
|
||||
font.Private = private
|
||||
fontGlyphOrder = set(font.getGlyphOrder())
|
||||
for name in font.strings.strings:
|
||||
if name in fontGlyphOrder:
|
||||
glyphOrderStrings.append(name)
|
||||
cs = font.CharStrings
|
||||
gs = table.cff.GlobalSubrs
|
||||
log.debug("Font %d CharStrings: %d.", i, len(cs))
|
||||
chrset.extend(font.charset)
|
||||
if newcs.charStringsAreIndexed:
|
||||
for i, name in enumerate(cs.charStrings, start=len(newcs)):
|
||||
newcs.charStrings[name] = i
|
||||
newcs.charStringsIndex.items.append(None)
|
||||
for name in cs.charStrings:
|
||||
newcs[name] = cs[name]
|
||||
|
||||
newfont.charset = chrset
|
||||
newfont.numGlyphs = len(chrset)
|
||||
newfont.strings.strings = glyphOrderStrings + storedNamesStrings
|
||||
|
||||
return newcff
|
||||
|
||||
@add_method(ttLib.getTableClass('cmap'))
|
||||
def merge(self, m, tables):
|
||||
|
||||
# TODO Handle format=14.
|
||||
if not hasattr(m, 'cmap'):
|
||||
computeMegaCmap(m, tables)
|
||||
cmap = m.cmap
|
||||
|
||||
cmapBmpOnly = {uni: gid for uni,gid in cmap.items() if uni <= 0xFFFF}
|
||||
self.tables = []
|
||||
module = ttLib.getTableModule('cmap')
|
||||
if len(cmapBmpOnly) != len(cmap):
|
||||
# format-12 required.
|
||||
cmapTable = module.cmap_classes[12](12)
|
||||
cmapTable.platformID = 3
|
||||
cmapTable.platEncID = 10
|
||||
cmapTable.language = 0
|
||||
cmapTable.cmap = cmap
|
||||
self.tables.append(cmapTable)
|
||||
# always create format-4
|
||||
cmapTable = module.cmap_classes[4](4)
|
||||
cmapTable.platformID = 3
|
||||
cmapTable.platEncID = 1
|
||||
cmapTable.language = 0
|
||||
cmapTable.cmap = cmapBmpOnly
|
||||
# ordered by platform then encoding
|
||||
self.tables.insert(0, cmapTable)
|
||||
self.tableVersion = 0
|
||||
self.numSubTables = len(self.tables)
|
||||
return self
|
||||
@ -11,21 +11,6 @@ import logging
|
||||
|
||||
log = logging.getLogger("fontTools.merge")
|
||||
|
||||
def add_method(*clazzes, **kwargs):
|
||||
"""Returns a decorator function that adds a new method to one or
|
||||
more classes."""
|
||||
allowDefault = kwargs.get('allowDefaultTable', False)
|
||||
def wrapper(method):
|
||||
done = []
|
||||
for clazz in clazzes:
|
||||
if clazz in done: continue # Support multiple names of a clazz
|
||||
done.append(clazz)
|
||||
assert allowDefault or clazz != DefaultTable, 'Oops, table class not found.'
|
||||
assert method.__name__ not in clazz.__dict__, \
|
||||
"Oops, class '%s' has method '%s'." % (clazz.__name__, method.__name__)
|
||||
setattr(clazz, method.__name__, method)
|
||||
return None
|
||||
return wrapper
|
||||
|
||||
# General utility functions for merging values from different fonts
|
||||
|
||||
@ -79,41 +64,6 @@ def sumDicts(lst):
|
||||
d.update(item)
|
||||
return d
|
||||
|
||||
def mergeObjects(lst):
|
||||
lst = [item for item in lst if item is not NotImplemented]
|
||||
if not lst:
|
||||
return NotImplemented
|
||||
lst = [item for item in lst if item is not None]
|
||||
if not lst:
|
||||
return None
|
||||
|
||||
clazz = lst[0].__class__
|
||||
assert all(type(item) == clazz for item in lst), lst
|
||||
|
||||
logic = clazz.mergeMap
|
||||
returnTable = clazz()
|
||||
returnDict = {}
|
||||
|
||||
allKeys = set.union(set(), *(vars(table).keys() for table in lst))
|
||||
for key in allKeys:
|
||||
try:
|
||||
mergeLogic = logic[key]
|
||||
except KeyError:
|
||||
try:
|
||||
mergeLogic = logic['*']
|
||||
except KeyError:
|
||||
raise Exception("Don't know how to merge key %s of class %s" %
|
||||
(key, clazz.__name__))
|
||||
if mergeLogic is NotImplemented:
|
||||
continue
|
||||
value = mergeLogic(getattr(table, key, NotImplemented) for table in lst)
|
||||
if value is not NotImplemented:
|
||||
returnDict[key] = value
|
||||
|
||||
returnTable.__dict__ = returnDict
|
||||
|
||||
return returnTable
|
||||
|
||||
def mergeBits(bitmap):
|
||||
|
||||
def wrapper(lst):
|
||||
@ -135,20 +85,6 @@ def mergeBits(bitmap):
|
||||
return wrapper
|
||||
|
||||
|
||||
@add_method(DefaultTable, allowDefaultTable=True)
|
||||
def merge(self, m, tables):
|
||||
if not hasattr(self, 'mergeMap'):
|
||||
log.info("Don't know how to merge '%s'.", self.tableTag)
|
||||
return NotImplemented
|
||||
|
||||
logic = self.mergeMap
|
||||
|
||||
if isinstance(logic, dict):
|
||||
return m.mergeObjects(self, self.mergeMap, tables)
|
||||
else:
|
||||
return logic(tables)
|
||||
|
||||
|
||||
class AttendanceRecordingIdentityDict(object):
|
||||
"""A dictionary-like object that records indices of items actually accessed
|
||||
from a list."""
|
||||
@ -193,16 +129,3 @@ class NonhashableDict(object):
|
||||
|
||||
def __delitem__(self, k):
|
||||
del self.d[id(k)]
|
||||
|
||||
|
||||
def renameCFFCharStrings(merger, glyphOrder, cffTable):
|
||||
"""Rename topDictIndex charStrings based on glyphOrder."""
|
||||
td = cffTable.cff.topDictIndex[0]
|
||||
|
||||
charStrings = {}
|
||||
for i, v in enumerate(td.CharStrings.charStrings.values()):
|
||||
glyphName = glyphOrder[i]
|
||||
charStrings[glyphName] = v
|
||||
td.CharStrings.charStrings = charStrings
|
||||
|
||||
td.charset = list(glyphOrder)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user