| from __future__ import print_function, division, absolute_import |
| from fontTools.misc.py23 import * |
| from fontTools.misc import sstruct |
| from fontTools.misc.textTools import safeEval, num2binary, binary2num |
| from . import DefaultTable |
| import time |
| import calendar |
| |
| |
| headFormat = """ |
| > # big endian |
| tableVersion: 16.16F |
| fontRevision: 16.16F |
| checkSumAdjustment: I |
| magicNumber: I |
| flags: H |
| unitsPerEm: H |
| created: Q |
| modified: Q |
| xMin: h |
| yMin: h |
| xMax: h |
| yMax: h |
| macStyle: H |
| lowestRecPPEM: H |
| fontDirectionHint: h |
| indexToLocFormat: h |
| glyphDataFormat: h |
| """ |
| |
| class table__h_e_a_d(DefaultTable.DefaultTable): |
| |
| dependencies = ['maxp', 'loca'] |
| |
| def decompile(self, data, ttFont): |
| dummy, rest = sstruct.unpack2(headFormat, data, self) |
| if rest: |
| # this is quite illegal, but there seem to be fonts out there that do this |
| assert rest == "\0\0" |
| |
| def compile(self, ttFont): |
| self.modified = int(time.time() - mac_epoch_diff) |
| data = sstruct.pack(headFormat, self) |
| return data |
| |
| def toXML(self, writer, ttFont): |
| writer.comment("Most of this table will be recalculated by the compiler") |
| writer.newline() |
| formatstring, names, fixes = sstruct.getformat(headFormat) |
| for name in names: |
| value = getattr(self, name) |
| if name in ("created", "modified"): |
| try: |
| value = time.asctime(time.gmtime(max(0, value + mac_epoch_diff))) |
| except ValueError: |
| value = time.asctime(time.gmtime(0)) |
| if name in ("magicNumber", "checkSumAdjustment"): |
| if value < 0: |
| value = value + 0x100000000 |
| value = hex(value) |
| if value[-1:] == "L": |
| value = value[:-1] |
| elif name in ("macStyle", "flags"): |
| value = num2binary(value, 16) |
| writer.simpletag(name, value=value) |
| writer.newline() |
| |
| def fromXML(self, name, attrs, content, ttFont): |
| value = attrs["value"] |
| if name in ("created", "modified"): |
| value = calendar.timegm(time.strptime(value)) - mac_epoch_diff |
| elif name in ("macStyle", "flags"): |
| value = binary2num(value) |
| else: |
| value = safeEval(value) |
| setattr(self, name, value) |
| |
| |
| # Difference between the original Mac epoch (1904) to the epoch on this machine. |
| mac_epoch_diff = calendar.timegm((1904, 1, 1, 0, 0, 0, 0, 0, 0)) |