/usr/lib/python3/dist-packages/gi/overrides/GExiv2.py is in gir1.2-gexiv2-0.10 0.10.8-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | # -*- Mode: Python; py-indent-offset: 4 -*-
# vim: tabstop=4 shiftwidth=4 expandtab
#
# Copyright (C) 2012 Robert Park <r@robru.ca>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
# USA
from datetime import datetime
from fractions import Fraction
from gi.repository import GObject
from ..overrides import override
from ..module import get_introspection_module
GExiv2 = get_introspection_module('GExiv2')
__all__ = []
DATE_FORMAT = '%Y:%m:%d %H:%M:%S'
MAX_INT = 2**31 - 1
@override
class Metadata(GExiv2.Metadata):
def __init__(self, path=None):
super(Metadata, self).__init__()
self._path = path
if path is not None:
self.open_path(path)
def open_path(self, path):
self._path = path
super(Metadata, self).open_path(path)
def save_file(self, path=None):
super(Metadata, self).save_file(path or self._path)
def get_date_time(self):
datestring = self['Exif.Photo.DateTimeOriginal']
if datestring is not None:
return datetime.strptime(datestring, DATE_FORMAT)
def set_date_time(self, value):
self['Exif.Photo.DateTimeOriginal'] = value.strftime(DATE_FORMAT)
def get_exposure_time(self):
num, denom = super(Metadata, self).get_exposure_time()
return Fraction(num, denom) if denom else None
def get_exif_tag_rational(self, key):
num, denom = super(Metadata, self).get_exif_tag_rational(key)
return Fraction(num, denom) if denom else None
def set_exif_tag_rational(self, key, fraction):
limit = MAX_INT
while True:
try:
return super(Metadata, self).set_exif_tag_rational(
key, fraction.numerator, fraction.denominator)
except ValueError:
fraction = fraction.limit_denominator(limit)
limit = int(limit / 2)
def get_tags(self):
return self.get_exif_tags() + self.get_iptc_tags() + self.get_xmp_tags()
def get(self, key, default=None):
return self.get_tag_string(key) if self.has_tag(key) else default
def get_raw(self, key):
return self.get_tag_raw(key).get_data()
def __iter__(self):
return iter(self.get_tags())
def __contains__(self, key):
return self.has_tag(key)
def __len__(self):
return len(self.get_tags())
def __getitem__(self, key):
if self.has_tag(key):
return self.get_tag_string(key)
else:
raise KeyError('%s: Unknown tag' % key)
def __delitem__(self, key):
if self.has_tag(key):
self.clear_tag(key)
else:
raise KeyError('%s: Unknown tag' % key)
__setitem__ = GExiv2.Metadata.set_tag_string
__all__.append('Metadata')
if not GExiv2.initialize():
raise RuntimeError("GExiv2 couldn't be initialized")
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