Source code for pytomo.kaa_metadata.image.core

# -*- coding: iso-8859-1 -*-
# -----------------------------------------------------------------------------
# core.py - basic image class
# -----------------------------------------------------------------------------
# $Id: core.py 4041 2009-05-22 14:59:59Z tack $
#
# -----------------------------------------------------------------------------
# kaa-Metadata - Media Metadata for Python
# Copyright (C) 2003-2006 Thomas Schueppel, Dirk Meyer
#
# First Edition: Thomas Schueppel <stain@acm.org>
# Maintainer:    Dirk Meyer <dischi@freevo.org>
#
# Please see the file AUTHORS for a complete list of authors.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MER-
# CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# -----------------------------------------------------------------------------

from __future__ import absolute_import

# python imports
import os
#import sys
import logging
import xml.sax

# kaa_metadata imports
from ..core import ParseError, Media, MEDIA_IMAGE

# get logging object
log = logging.getLogger('metadata')

# attributes for image files
ATTRIBUTES = ['description', 'people', 'location', 'event', 'width', 'height',
              'thumbnail','software','hardware', 'dpi', 'city', 'rotation', 'author' ]


[docs]class BinsParser(xml.sax.ContentHandler): def __init__(self, filename): xml.sax.ContentHandler.__init__(self) self.mode = 0 self.var = None self.dict = {} parser = xml.sax.make_parser() parser.setContentHandler(self) try: parser.parse(filename) except ParseError: pass except Exception, e: log.exception('bins parser')
[docs] def items(self): return self.dict.items()
[docs] def startElement(self, name, attr): if self.mode == 0: if name not in ('album', 'image'): raise ParseError self.mode = 1 if self.mode == 2 and name == 'field': self.var = attr['name'] self.chars = '' if self.mode == 1 and name == 'description': self.mode = 2
[docs] def endElement(self, name): if self.mode == 2 and name == 'description': self.mode = 1 if self.var: value = self.chars.strip() if value: self.dict[self.var] = value self.var = None
[docs] def characters(self, c): if self.var: self.chars += c
[docs]class Image(Media): """ Digital Images, Photos, Pictures. """ _keys = Media._keys + ATTRIBUTES media = MEDIA_IMAGE def _finalize(self): """ Add additional information and correct data. FIXME: parse_external_files here is very wrong """ if self.url and self.url.startswith('file://'): self.parse_external_files(self.url[7:]) Media._finalize(self)
[docs] def parse_external_files(self, filename): """ Parse external files like bins and .comments. """ # Parse bins xml files binsxml = filename + '.xml' if os.path.isfile(binsxml): bins = BinsParser(binsxml) for key, value in bins.items(): self._set(key, value) # FIXME: this doesn't work anymore comment_file = os.path.join(os.path.dirname(filename), '.comments', os.path.basename(filename) + '.xml') if not os.path.isfile(comment_file) or 1: return # FIXME: replace kaa.xml stuff with sax or minidom doc = xml.Document(comment_file, 'Comment') for child in doc.children: if child.name == 'Place': self.location = child.content if child.name == 'Note': self.description = child.content