#!/usr/bin/env python # -*- coding: utf-8 -*- # Gramps - a GTK+/GNOME based genealogy program # # Copyright (C) 2011 Nick Hall # Copyright (C) 2011 Rob G. Healey # # 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 # MERCHANTABILITY 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 # # $Id$ # from ListModel import ListModel from gen.ggettext import gettext as _ from PlaceUtils import conv_lat_lon from fractions import Fraction import gen.lib import DateHandler import datetime import gtk import pyexiv2 # v0.1 has a different API to v0.2 and above if hasattr(pyexiv2, 'version_info'): OLD_API = False else: # version_info attribute does not exist prior to v0.2.0 OLD_API = True def format_datetime(exif_dt): """ Convert a python datetime object into a string for display, using the standard Gramps date format. """ if type(exif_dt) != datetime.datetime: return _('Invalid format') date_part = gen.lib.Date() date_part.set_yr_mon_day(exif_dt.year, exif_dt.month, exif_dt.day) date_str = DateHandler.displayer.display(date_part) time_str = _('%(hr)02d:%(min)02d:%(sec)02d') % {'hr': exif_dt.hour, 'min': exif_dt.minute, 'sec': exif_dt.second} return _('%(date)s %(time)s') % {'date': date_str, 'time': time_str} def format_gps(dms_list, nsew_ref): """ Convert a [degrees, minutes, seconds] list of Fractions and a direction reference into a string for display. """ try: degs, mins, secs = dms_list except (TypeError, ValueError): return _('Invalid format') if not isinstance(degs, Fraction): # Old API uses pyexiv2.Rational degs = Fraction(str(degs)) mins = Fraction(str(mins)) secs = Fraction(str(secs)) value = float(degs) + float(mins) / 60 + float(secs) / 3600 if nsew_ref == 'N': result = conv_lat_lon(str(value), '0', 'DEG')[0] elif nsew_ref == 'S': result = conv_lat_lon('-' + str(value), '0', 'DEG')[0] elif nsew_ref == 'E': result = conv_lat_lon('0', str(value), 'DEG')[1] elif nsew_ref == 'W': result = conv_lat_lon('0', '-' + str(value), 'DEG')[1] else: result = None return result if result is not None else _('Invalid format') DESCRIPTION = _('Description') IMAGE = _('Image') CAMERA = _('Camera') GPS = _('GPS') ADVANCED = _('Advanced') TAGS = [(DESCRIPTION, 'Exif.Image.ImageDescription', None, None), (DESCRIPTION, 'Exif.Image.Artist', None, None), (DESCRIPTION, 'Exif.Image.Copyright', None, None), (DESCRIPTION, 'Exif.Photo.DateTimeOriginal', None, format_datetime), (DESCRIPTION, 'Exif.Photo.DateTimeDigitized', None, format_datetime), (DESCRIPTION, 'Exif.Image.DateTime', None, format_datetime), (DESCRIPTION, 'Exif.Image.TimeZoneOffset', None, None), (DESCRIPTION, 'Exif.Image.XPSubject', None, None), (DESCRIPTION, 'Exif.Image.XPComment', None, None), (DESCRIPTION, 'Exif.Image.XPKeywords', None, None), (DESCRIPTION, 'Exif.Image.Rating', None, None), (IMAGE, 'Exif.Image.DocumentName', None, None), (IMAGE, 'Exif.Photo.PixelXDimension', None, None), (IMAGE, 'Exif.Photo.PixelYDimension', None, None), (IMAGE, 'Exif.Image.XResolution', 'Exif.Image.ResolutionUnit', None), (IMAGE, 'Exif.Image.YResolution', 'Exif.Image.ResolutionUnit', None), (IMAGE, 'Exif.Image.Orientation', None, None), (IMAGE, 'Exif.Photo.ColorSpace', None, None), (IMAGE, 'Exif.Image.YCbCrPositioning', None, None), (IMAGE, 'Exif.Photo.ComponentsConfiguration', None, None), (IMAGE, 'Exif.Image.Compression', None, None), (IMAGE, 'Exif.Photo.CompressedBitsPerPixel', None, None), (IMAGE, 'Exif.Image.PhotometricInterpretation', None, None), (CAMERA, 'Exif.Image.Make', None, None), (CAMERA, 'Exif.Image.Model', None, None), (CAMERA, 'Exif.Photo.FNumber', None, None), (CAMERA, 'Exif.Photo.ExposureTime', None, None), (CAMERA, 'Exif.Photo.ISOSpeedRatings', None, None), (CAMERA, 'Exif.Photo.FocalLength', None, None), (CAMERA, 'Exif.Photo.FocalLengthIn35mmFilm', None, None), (CAMERA, 'Exif.Photo.MaxApertureValue', None, None), (CAMERA, 'Exif.Photo.MeteringMode', None, None), (CAMERA, 'Exif.Photo.ExposureProgram', None, None), (CAMERA, 'Exif.Photo.ExposureBiasValue', None, None), (CAMERA, 'Exif.Photo.Flash', None, None), (CAMERA, 'Exif.Image.FlashEnergy', None, None), (CAMERA, 'Exif.Image.SelfTimerMode', None, None), (CAMERA, 'Exif.Image.SubjectDistance', None, None), (CAMERA, 'Exif.Photo.Contrast', None, None), (CAMERA, 'Exif.Photo.LightSource', None, None), (CAMERA, 'Exif.Photo.Saturation', None, None), (CAMERA, 'Exif.Photo.Sharpness', None, None), (CAMERA, 'Exif.Photo.WhiteBalance', None, None), (CAMERA, 'Exif.Photo.DigitalZoomRatio', None, None), (GPS, 'Exif.GPSInfo.GPSLatitude', 'Exif.GPSInfo.GPSLatitudeRef', format_gps), (GPS, 'Exif.GPSInfo.GPSLongitude', 'Exif.GPSInfo.GPSLongitudeRef', format_gps), (GPS, 'Exif.GPSInfo.GPSAltitude', 'Exif.GPSInfo.GPSAltitudeRef', None), (GPS, 'Exif.GPSInfo.GPSTimeStamp', None, None), (GPS, 'Exif.GPSInfo.GPSSatellites', None, None), (ADVANCED, 'Exif.Image.Software', None, None), (ADVANCED, 'Exif.Photo.ImageUniqueID', None, None), (ADVANCED, 'Exif.Image.CameraSerialNumber', None, None), (ADVANCED, 'Exif.Photo.ExifVersion', None, None), (ADVANCED, 'Exif.Photo.FlashpixVersion', None, None), (ADVANCED, 'Exif.Image.ExifTag', None, None), (ADVANCED, 'Exif.Image.GPSTag', None, None), (ADVANCED, 'Exif.Image.BatteryLevel', None, None)] class MetadataView(gtk.TreeView): def __init__(self): gtk.TreeView.__init__(self) self.sections = {} titles = [(_('Key'), 1, 235), (_('Value'), 2, 325)] self.model = ListModel(self, titles, list_mode="tree") def display_exif_tags(self, full_path): """ Display the exif tags. """ # pylint: disable=E1101 self.sections = {} self.model.clear() if OLD_API: # prior to v0.2.0 try: metadata = pyexiv2.Image(full_path) except IOError: return False metadata.readMetadata() for section, key, key2, func in TAGS: if key not in metadata.exifKeys(): continue if func is not None: if key2 is None: human_value = func(metadata[key]) else: if key2 in metadata.exifKeys(): human_value = func(metadata[key], metadata[key2]) else: human_value = func(metadata[key], None) else: human_value = metadata.interpretedExifValue(key) if key2 is not None and key2 in metadata.exifKeys(): human_value += ' ' + metadata.interpretedExifValue(key2) label = metadata.tagDetails(key)[0] node = self.__add_section(section) self.model.add((label, human_value), node=node) else: # v0.2.0 and above metadata = pyexiv2.ImageMetadata(full_path) try: metadata.read() except IOError: return False for section, key, key2, func in TAGS: if key not in metadata.exif_keys: continue tag = metadata.get(key) if key2 is not None and key2 in metadata.exif_keys: tag2 = metadata.get(key2) else: tag2 = None if func is not None: if key2 is None: human_value = func(tag.value) else: if tag2 is None: human_value = func(tag.value, None) else: human_value = func(tag.value, tag2.value) else: human_value = tag.human_value if tag2 is not None: human_value += ' ' + tag2.human_value label = tag.label node = self.__add_section(section) self.model.add((tag.label, human_value), node=node) self.model.tree.expand_all() return self.model.count > 0 def __add_section(self, section): """ Add the section heading node to the model. """ if section not in self.sections: node = self.model.add([section, '']) self.sections[section] = node else: node = self.sections[section] return node def get_has_data(self, full_path): """ Return True if the gramplet has data, else return False. """ # pylint: disable=E1101 if OLD_API: # prior to v0.2.0 try: metadata = pyexiv2.Image(full_path) except IOError: return False metadata.readMetadata() for tag in TAGS: if tag[1] in metadata.exifKeys(): return True else: # v0.2.0 and above metadata = pyexiv2.ImageMetadata(full_path) try: metadata.read() except IOError: return False for tag in TAGS: if tag[1] in metadata.exif_keys: return True return False