6408: Convert Metadata Viewer from pyexiv2 to GExiv2. Move Edit Exif Metadata gramplet into gramps-addons.
svn: r21387
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Nick Hall
parent
d10d572002
commit
3fabbe1ecb
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@ -311,29 +311,6 @@ register(GRAMPLET,
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gramps_target_version="4.0",
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)
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#------------------------------------------------------------------------
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# Edit Image Exif Metadata class
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#------------------------------------------------------------------------
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register(GRAMPLET,
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id = "Edit Image Exif Metadata",
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name = _("Edit Image Exif Metadata"),
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description = _("Gramplet to view, edit, and save image Exif metadata"),
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height = 450,
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expand = False,
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gramplet = 'EditExifMetadata',
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gramplet_title = _("Edit Exif Metadata"),
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detached_width = 510,
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detached_height = 550,
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version = '1.5.0',
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gramps_target_version = '4.0',
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status = STABLE,
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fname = "editexifmetadata.py",
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help_url = "Edit Image Exif Metadata",
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authors = ['Rob G. Healey'],
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authors_email = ['robhealey1@gmail.com'],
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navtypes = ["Media"],
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)
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#------------------------------------------------------------------------
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# Bottombar
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#------------------------------------------------------------------------
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@ -394,11 +371,11 @@ register(GRAMPLET,
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)
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try:
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import pyexiv2
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from gi.repository import GExiv2
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available = True
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except:
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import logging
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logging.warning(_("WARNING: pyexiv2 module not loaded. "
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logging.warning(_("WARNING: GExiv2 module not loaded. "
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"Image metadata functionality will not be available."))
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available = False
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@ -26,8 +26,8 @@
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# GNOME modules
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#
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#-------------------------------------------------------------------------
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from gi.repository import GObject
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from gi.repository import Gtk
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from gi.repository import GExiv2
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#-------------------------------------------------------------------------
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#
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@ -36,61 +36,54 @@ from gi.repository import Gtk
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#-------------------------------------------------------------------------
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from gramps.gui.listmodel import ListModel
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from gramps.gen.ggettext import gettext as _
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from gramps.gen.const import GRAMPS_LOCALE as glocale
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_ = glocale.get_translation().gettext
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from gramps.gen.utils.place import conv_lat_lon
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from fractions import Fraction
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from gramps.gen.lib import Date
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from gramps.gen.datehandler import displayer
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import datetime
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import pyexiv2
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from datetime import datetime
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# v0.1 has a different API to v0.2 and above
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if hasattr(pyexiv2, 'version_info'):
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OLD_API = False
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else:
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# version_info attribute does not exist prior to v0.2.0
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OLD_API = True
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def format_datetime(exif_dt):
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def format_datetime(datestring):
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"""
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Convert a python datetime object into a string for display, using the
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Convert an exif timestamp into a string for display, using the
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standard Gramps date format.
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"""
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if type(exif_dt) != datetime.datetime:
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try:
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timestamp = datetime.strptime(datestring, '%Y:%m:%d %H:%M:%S')
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except ValueError:
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return _('Invalid format')
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date_part = Date()
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date_part.set_yr_mon_day(exif_dt.year, exif_dt.month, exif_dt.day)
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date_part.set_yr_mon_day(timestamp.year, timestamp.month, timestamp.day)
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date_str = displayer.display(date_part)
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time_str = _('%(hr)02d:%(min)02d:%(sec)02d') % {'hr': exif_dt.hour,
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'min': exif_dt.minute,
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'sec': exif_dt.second}
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time_str = _('%(hr)02d:%(min)02d:%(sec)02d') % {'hr': timestamp.hour,
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'min': timestamp.minute,
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'sec': timestamp.second}
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return _('%(date)s %(time)s') % {'date': date_str, 'time': time_str}
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def format_gps(dms_list, nsew_ref):
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def format_gps(raw_dms, nsew):
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"""
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Convert a [degrees, minutes, seconds] list of Fractions and a direction
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Convert raw degrees, minutes, seconds and a direction
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reference into a string for display.
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"""
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try:
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degs, mins, secs = dms_list
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except (TypeError, ValueError):
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return _('Invalid format')
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value = 0.0
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divisor = 1.0
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for val in raw_dms.split(' '):
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try:
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num = float(val.split('/')[0]) / float(val.split('/')[1])
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except ValueError, IndexError:
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value = None
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break
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value += num / divisor
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divisor *= 60
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if not isinstance(degs, Fraction):
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# Old API uses pyexiv2.Rational
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degs = Fraction(str(degs))
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mins = Fraction(str(mins))
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secs = Fraction(str(secs))
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value = float(degs) + float(mins) / 60 + float(secs) / 3600
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if nsew_ref == 'N':
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if nsew == 'N':
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result = conv_lat_lon(str(value), '0', 'DEG')[0]
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elif nsew_ref == 'S':
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elif nsew == 'S':
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result = conv_lat_lon('-' + str(value), '0', 'DEG')[0]
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elif nsew_ref == 'E':
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elif nsew == 'E':
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result = conv_lat_lon('0', str(value), 'DEG')[1]
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elif nsew_ref == 'W':
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elif nsew == 'W':
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result = conv_lat_lon('0', '-' + str(value), 'DEG')[1]
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else:
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result = None
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@ -167,81 +160,49 @@ TAGS = [(DESCRIPTION, 'Exif.Image.ImageDescription', None, None),
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class MetadataView(Gtk.TreeView):
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def __init__(self):
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GObject.GObject.__init__(self)
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Gtk.TreeView.__init__(self)
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self.sections = {}
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titles = [(_('Key'), 1, 235),
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(_('Value'), 2, 325)]
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(_('Value'), 2, 325)]
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self.model = ListModel(self, titles, list_mode="tree")
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def display_exif_tags(self, full_path):
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"""
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Display the exif tags.
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"""
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# pylint: disable=E1101
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self.sections = {}
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self.model.clear()
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if OLD_API: # prior to v0.2.0
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try:
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metadata = pyexiv2.Image(full_path)
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except IOError:
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return False
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metadata.readMetadata()
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for section, key, key2, func in TAGS:
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if key not in metadata.exifKeys():
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continue
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if func is not None:
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if key2 is None:
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human_value = func(metadata[key])
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try:
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metadata = GExiv2.Metadata(full_path)
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except:
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return False
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get_human = metadata.get_exif_tag_interpreted_string
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for section, key, key2, func in TAGS:
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if not key in metadata.get_exif_tags():
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continue
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if func is not None:
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if key2 is None:
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human_value = func(metadata[key])
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else:
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if key2 in metadata.get_exif_tags():
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human_value = func(metadata[key], metadata[key2])
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else:
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if key2 in metadata.exifKeys():
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human_value = func(metadata[key], metadata[key2])
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else:
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human_value = func(metadata[key], None)
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else:
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human_value = metadata.interpretedExifValue(key)
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if key2 is not None and key2 in metadata.exifKeys():
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human_value += ' ' + metadata.interpretedExifValue(key2)
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human_value = func(metadata[key], None)
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else:
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human_value = get_human(key)
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if key2 in metadata.get_exif_tags():
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human_value += ' ' + get_human(key2)
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label = metadata.tagDetails(key)[0]
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node = self.__add_section(section)
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self.model.add((label, human_value), node=node)
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label = metadata.get_exif_tag_label(key)
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node = self.__add_section(section)
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if human_value is None:
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human_value = ''
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self.model.add((label, human_value), node=node)
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else: # v0.2.0 and above
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metadata = pyexiv2.ImageMetadata(full_path)
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try:
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metadata.read()
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except IOError:
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return False
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for section, key, key2, func in TAGS:
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if key not in metadata.exif_keys:
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continue
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tag = metadata.get(key)
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if key2 is not None and key2 in metadata.exif_keys:
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tag2 = metadata.get(key2)
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else:
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tag2 = None
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if func is not None:
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if key2 is None:
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human_value = func(tag.value)
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else:
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if tag2 is None:
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human_value = func(tag.value, None)
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else:
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human_value = func(tag.value, tag2.value)
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else:
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human_value = tag.human_value
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if tag2 is not None:
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human_value += ' ' + tag2.human_value
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label = tag.label
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node = self.__add_section(section)
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if not human_value:
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human_value = ''
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self.model.add((tag.label, human_value), node=node)
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self.model.tree.expand_all()
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return self.model.count > 0
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@ -260,25 +221,12 @@ class MetadataView(Gtk.TreeView):
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"""
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Return True if the gramplet has data, else return False.
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"""
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# pylint: disable=E1101
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if OLD_API: # prior to v0.2.0
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try:
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metadata = pyexiv2.Image(full_path)
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except IOError:
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return False
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metadata.readMetadata()
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for tag in TAGS:
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if tag[1] in metadata.exifKeys():
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return True
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else: # v0.2.0 and above
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metadata = pyexiv2.ImageMetadata(full_path)
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try:
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metadata.read()
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except IOError:
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return False
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for tag in TAGS:
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if tag[1] in metadata.exif_keys:
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return True
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try:
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metadata = GExiv2.Metadata(full_path)
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except:
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return False
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for tag in TAGS:
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if tag in metadata.get_exif_tags():
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return True
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return False
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