| from __future__ import print_function, division, absolute_import |
| from fontTools.misc.py23 import * |
| from . import DefaultTable |
| import struct |
| |
| tsi0Format = '>HHl' |
| |
| def fixlongs(glyphID, textLength, textOffset): |
| return int(glyphID), int(textLength), textOffset |
| |
| |
| class table_T_S_I__0(DefaultTable.DefaultTable): |
| |
| dependencies = ["TSI1"] |
| |
| def decompile(self, data, ttFont): |
| numGlyphs = ttFont['maxp'].numGlyphs |
| indices = [] |
| size = struct.calcsize(tsi0Format) |
| for i in range(numGlyphs + 5): |
| glyphID, textLength, textOffset = fixlongs(*struct.unpack(tsi0Format, data[:size])) |
| indices.append((glyphID, textLength, textOffset)) |
| data = data[size:] |
| assert len(data) == 0 |
| assert indices[-5] == (0XFFFE, 0, -1409540300), "bad magic number" # 0xABFC1F34 |
| self.indices = indices[:-5] |
| self.extra_indices = indices[-4:] |
| |
| def compile(self, ttFont): |
| if not hasattr(self, "indices"): |
| # We have no corresponding table (TSI1 or TSI3); let's return |
| # no data, which effectively means "ignore us". |
| return "" |
| data = b"" |
| for index, textLength, textOffset in self.indices: |
| data = data + struct.pack(tsi0Format, index, textLength, textOffset) |
| data = data + struct.pack(tsi0Format, 0XFFFE, 0, -1409540300) # 0xABFC1F34 |
| for index, textLength, textOffset in self.extra_indices: |
| data = data + struct.pack(tsi0Format, index, textLength, textOffset) |
| return data |
| |
| def set(self, indices, extra_indices): |
| # gets called by 'TSI1' or 'TSI3' |
| self.indices = indices |
| self.extra_indices = extra_indices |
| |
| def toXML(self, writer, ttFont): |
| writer.comment("This table will be calculated by the compiler") |
| writer.newline() |
| |