| from . import DefaultTable |
| import sys |
| import array |
| import logging |
| |
| |
| log = logging.getLogger(__name__) |
| |
| |
| class table__l_o_c_a(DefaultTable.DefaultTable): |
| dependencies = ["glyf"] |
| |
| def decompile(self, data, ttFont): |
| longFormat = ttFont["head"].indexToLocFormat |
| if longFormat: |
| format = "I" |
| else: |
| format = "H" |
| locations = array.array(format) |
| locations.frombytes(data) |
| if sys.byteorder != "big": |
| locations.byteswap() |
| if not longFormat: |
| l = array.array("I") |
| for i in range(len(locations)): |
| l.append(locations[i] * 2) |
| locations = l |
| if len(locations) < (ttFont["maxp"].numGlyphs + 1): |
| log.warning( |
| "corrupt 'loca' table, or wrong numGlyphs in 'maxp': %d %d", |
| len(locations) - 1, |
| ttFont["maxp"].numGlyphs, |
| ) |
| self.locations = locations |
| |
| def compile(self, ttFont): |
| try: |
| max_location = max(self.locations) |
| except AttributeError: |
| self.set([]) |
| max_location = 0 |
| if max_location < 0x20000 and all(l % 2 == 0 for l in self.locations): |
| locations = array.array("H") |
| for i in range(len(self.locations)): |
| locations.append(self.locations[i] // 2) |
| ttFont["head"].indexToLocFormat = 0 |
| else: |
| locations = array.array("I", self.locations) |
| ttFont["head"].indexToLocFormat = 1 |
| if sys.byteorder != "big": |
| locations.byteswap() |
| return locations.tobytes() |
| |
| def set(self, locations): |
| self.locations = array.array("I", locations) |
| |
| def toXML(self, writer, ttFont): |
| writer.comment("The 'loca' table will be calculated by the compiler") |
| writer.newline() |
| |
| def __getitem__(self, index): |
| return self.locations[index] |
| |
| def __len__(self): |
| return len(self.locations) |
