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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)
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