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# Copyright (C) 2009 Lars Wirzenius <liw@liw.fi>
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
# This is necessary for running under Python 2.5, which we need to
# do on Debian, for now.
from __future__ import with_statement
import datetime
import hashlib
import os
import subprocess
import gtk
import pyexiv2
import dimbola
class ImportResult(dimbola.BackgroundStatus):
def __init__(self, action, description, foldername, basename,
thumbnail, preview, exifs, sha1):
dimbola.BackgroundStatus.__init__(self, action, description)
self.foldername = foldername
self.basename = basename
self.thumbnail = thumbnail
self.preview = preview
self.exifs = exifs
self.sha1 = sha1
def process_result(self, mwc):
db = mwc.db
with db:
folderid = db.find_folder(self.foldername)
if not folderid:
folderid = db.add_folder(self.foldername)
photoid = db.add_photo(folderid, self.basename, 0, 0)
db.set_sha1(photoid, self.sha1)
for exifname, exifvalue in self.exifs.iteritems():
assert type(exifvalue) == str
exifid = db.find_exifname(exifname)
if not exifid:
exifid = db.add_exifname(exifname)
db.add_exif(photoid, exifid, exifvalue)
db.add_thumbnail(photoid, self.thumbnail)
db.add_preview(photoid, self.preview)
mwc.emit('db-changed')
class PreviewMaker(object):
'''Create a JPEG preview of an image file.'''
def __init__(self):
self.dtc = dimbola.DcrawTypeCache()
def make_preview(self, filename):
if self.dtc.supported(filename):
return self.from_raw(filename)
else:
return self.from_other(filename)
def from_raw(self, filename):
p = subprocess.Popen(['dcraw', '-c', filename], stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
ppm, stderr = p.communicate('')
if p.returncode:
raise Exception('dcraw failed: exit code %s:\n%s' %
(p.returncode, stderr))
return dimbola.image_data_to_image_data(ppm, 'jpeg',
{ 'quality': '50' })
def from_other(self, filename):
pixbuf = gtk.gdk.pixbuf_new_from_file(filename)
return dimbola.pixbuf_to_image_data(pixbuf, 'jpeg',
{ 'quality': '50' })
class ThumbnailMaker(object):
'''Create a thumbnail from a preview.'''
def make_thumbnail(self, preview_jpeg):
pixbuf = dimbola.image_data_to_pixbuf(preview_jpeg)
pixbuf = dimbola.scale_pixbuf(pixbuf, 200, 200)
return dimbola.pixbuf_to_image_data(pixbuf, 'jpeg', {'quality':'50'})
class ImportPhoto(dimbola.BackgroundJob):
exifs = ['Exif.Image.Make',
'Exif.Image.Model',
'Exif.Image.Orientation',
'Exif.Image.DateTime',
'Exif.Photo.ExposureTime',
'Exif.Photo.FNumber',
'Exif.Photo.ISOSpeedRatings',
'Exif.Photo.ShutterSpeedValue',
'Exif.Photo.ApertureValue',
'Exif.Photo.ExposureBiasValue',
'Exif.Photo.FocalLength',
'Exif.Photo.WhiteBalance']
def __init__(self, pathname):
self.pathname = pathname
self.description = 'Importing %s' % pathname
def run(self):
self.send_status(dimbola.BackgroundStatus('start',
'Importing %s' % os.path.basename(self.pathname)))
preview_maker = PreviewMaker()
preview = preview_maker.make_preview(self.pathname)
thumbnail_maker = ThumbnailMaker()
thumbnail = thumbnail_maker.make_thumbnail(preview)
image = pyexiv2.Image(self.pathname)
image.readMetadata()
foldername = os.path.dirname(os.path.abspath(self.pathname))
basename = os.path.basename(self.pathname)
exifs = dict()
for exifname in image.exifKeys():
if exifname not in self.exifs:
continue
exifs[exifname] = self.get_encoded(image, exifname)
assert type(exifs[exifname]) == str
return ImportResult('stop', 'Imported %s' % basename,
foldername, basename, thumbnail, preview, exifs,
dimbola.sha1(self.pathname))
def get_encoded(self, image, key):
s = image.interpretedExifValue(key)
assert type(s) == str
return s
class ImportFiles(dimbola.Plugin):
'''Import into database using background jobs.'''
def __init__(self, mwc):
self.mwc = mwc
self.mwc.connect('setup-widgets', self.setup_widgets)
def setup_widgets(self, mwc):
self.chooser = mwc.widgets['import_filechooserdialog']
self.chooser.set_transient_for(mwc.widgets['window'])
self.dtc = dimbola.DcrawTypeCache()
photo_filter = gtk.FileFilter()
photo_filter.set_name('All images')
photo_filter.add_pixbuf_formats()
photo_filter.add_custom(gtk.FILE_FILTER_FILENAME |
gtk.FILE_FILTER_MIME_TYPE,
self.filter_dcraw_known,
None)
self.chooser.add_filter(photo_filter)
raw_filter = gtk.FileFilter()
raw_filter.set_name('RAW photos')
raw_filter.add_custom(gtk.FILE_FILTER_FILENAME |
gtk.FILE_FILTER_MIME_TYPE,
self.filter_dcraw_known,
None)
self.chooser.add_filter(raw_filter)
all_filter = gtk.FileFilter()
all_filter.set_name('All files')
all_filter.add_pattern('*')
self.chooser.add_filter(all_filter)
def enable(self):
self.mwc.add_to_menu('file_menu', 'import_menuitem',
'Import photos')
def disable(self):
self.mwc.remove_from_menu('file_menu', 'import_menuitem')
def on_import_menuitem_activate(self, *args):
self.chooser.show()
response = self.chooser.run()
self.chooser.hide()
if response == gtk.RESPONSE_OK:
for pathname in self.chooser.get_filenames():
job = ImportPhoto(pathname)
self.mwc.add_bgjob(job)
def filter_dcraw_known(self, filter_info, data):
pathname, uri, display_name, mime_type = filter_info
return self.dtc.supported(pathname)
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