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# A part of pdfrw (https://github.com/pmaupin/pdfrw)
# Copyright (C) 2006-2015 Patrick Maupin, Austin, Texas
# MIT license -- See LICENSE.txt for details
from .pdfindirect import PdfIndirect
from .pdfobject import PdfObject
def _resolved():
pass
class PdfArray(list):
''' A PdfArray maps the PDF file array object into a Python list.
It has an indirect attribute which defaults to False.
'''
indirect = False
def __init__(self, source=[]):
self._resolve = self._resolver
self.extend(source)
def _resolver(self, isinstance=isinstance, enumerate=enumerate,
listiter=list.__iter__, PdfIndirect=PdfIndirect,
resolved=_resolved, PdfNull=PdfObject('null')):
for index, value in enumerate(list.__iter__(self)):
if isinstance(value, PdfIndirect):
value = value.real_value()
if value is None:
value = PdfNull
self[index] = value
self._resolve = resolved
def __getitem__(self, index, listget=list.__getitem__):
self._resolve()
return listget(self, index)
try:
def __getslice__(self, i, j, listget=list.__getslice__):
self._resolve()
return listget(self, i, j)
except AttributeError:
pass
def __iter__(self, listiter=list.__iter__):
self._resolve()
return listiter(self)
def count(self, item):
self._resolve()
return list.count(self, item)
def index(self, item):
self._resolve()
return list.index(self, item)
def remove(self, item):
self._resolve()
return list.remove(self, item)
def sort(self, *args, **kw):
self._resolve()
return list.sort(self, *args, **kw)
def pop(self, *args):
self._resolve()
return list.pop(self, *args)
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