+++ /dev/null
-# -*- coding: utf-8 -*-
-# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
-#
-from django.db import models, transaction
-import catalogue.models
-from django.db.models import permalink
-from sorl.thumbnail import ImageField
-from django.conf import settings
-from django.contrib.contenttypes.fields import GenericRelation
-from django.core.files.storage import FileSystemStorage
-from django.utils.datastructures import SortedDict
-from fnpdjango.utils.text.slughifi import slughifi
-from ssify import flush_ssi_includes
-from picture import tasks
-from StringIO import StringIO
-import jsonfield
-import itertools
-import logging
-
-from PIL import Image
-
-from django.utils.translation import ugettext_lazy as _
-from newtagging import managers
-from os import path
-
-
-picture_storage = FileSystemStorage(location=path.join(
- settings.MEDIA_ROOT, 'pictures'),
- base_url=settings.MEDIA_URL + "pictures/")
-
-
-class PictureArea(models.Model):
- picture = models.ForeignKey('picture.Picture', related_name='areas')
- area = jsonfield.JSONField(_('area'), default={}, editable=False)
- kind = models.CharField(_('kind'), max_length=10, blank=False,
- null=False, db_index=True,
- choices=(('thing', _('thing')),
- ('theme', _('theme'))))
-
- objects = models.Manager()
- tagged = managers.ModelTaggedItemManager(catalogue.models.Tag)
- tags = managers.TagDescriptor(catalogue.models.Tag)
- tag_relations = GenericRelation(catalogue.models.Tag.intermediary_table_model)
-
- short_html_url_name = 'picture_area_short'
-
- @classmethod
- def rectangle(cls, picture, kind, coords):
- pa = PictureArea()
- pa.picture = picture
- pa.kind = kind
- pa.area = coords
- return pa
-
- def flush_includes(self, languages=True):
- if not languages:
- return
- if languages is True:
- languages = [lc for (lc, _ln) in settings.LANGUAGES]
- flush_ssi_includes([
- template % (self.pk, lang)
- for template in [
- '/katalog/pa/%d/short.%s.html',
- ]
- for lang in languages
- ])
-
-
-class Picture(models.Model):
- """
- Picture resource.
-
- """
- title = models.CharField(_('title'), max_length=32767)
- slug = models.SlugField(_('slug'), max_length=120, db_index=True, unique=True)
- sort_key = models.CharField(_('sort key'), max_length=120, db_index=True, editable=False)
- sort_key_author = models.CharField(_('sort key by author'), max_length=120, db_index=True, editable=False, default=u'')
- created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True)
- changed_at = models.DateTimeField(_('creation date'), auto_now=True, db_index=True)
- xml_file = models.FileField('xml_file', upload_to="xml", storage=picture_storage)
- image_file = ImageField(_('image_file'), upload_to="images", storage=picture_storage)
- html_file = models.FileField('html_file', upload_to="html", storage=picture_storage)
- areas_json = jsonfield.JSONField(_('picture areas JSON'), default={}, editable=False)
- extra_info = jsonfield.JSONField(_('extra information'), default={})
- culturepl_link = models.CharField(blank=True, max_length=240)
- wiki_link = models.CharField(blank=True, max_length=240)
-
- width = models.IntegerField(null=True)
- height = models.IntegerField(null=True)
-
- objects = models.Manager()
- tagged = managers.ModelTaggedItemManager(catalogue.models.Tag)
- tags = managers.TagDescriptor(catalogue.models.Tag)
- tag_relations = GenericRelation(catalogue.models.Tag.intermediary_table_model)
-
- short_html_url_name = 'picture_short'
-
- class AlreadyExists(Exception):
- pass
-
- class Meta:
- ordering = ('sort_key',)
-
- verbose_name = _('picture')
- verbose_name_plural = _('pictures')
-
- def save(self, force_insert=False, force_update=False, **kwargs):
- from sortify import sortify
-
- self.sort_key = sortify(self.title)[:120]
-
- try:
- author = self.tags.filter(category='author')[0].sort_key
- except IndexError:
- author = u''
- self.sort_key_author = author
-
- ret = super(Picture, self).save(force_insert, force_update)
-
- return ret
-
- def __unicode__(self):
- return self.title
-
- @permalink
- def get_absolute_url(self):
- return ('picture.views.picture_detail', [self.slug])
-
- @classmethod
- def from_xml_file(cls, xml_file, image_file=None, image_store=None, overwrite=False):
- """
- Import xml and it's accompanying image file.
- If image file is missing, it will be fetched by librarian.picture.ImageStore
- which looks for an image file in the same directory the xml is, with extension matching
- its mime type.
- """
- from sortify import sortify
- from django.core.files import File
- from librarian.picture import WLPicture, ImageStore
- close_xml_file = False
- close_image_file = False
-
-
- if image_file is not None and not isinstance(image_file, File):
- image_file = File(open(image_file))
- close_image_file = True
-
- if not isinstance(xml_file, File):
- xml_file = File(open(xml_file))
- close_xml_file = True
-
- with transaction.atomic():
- # use librarian to parse meta-data
- if image_store is None:
- image_store = ImageStore(picture_storage.path('images'))
- picture_xml = WLPicture.from_file(xml_file, image_store=image_store)
-
- picture, created = Picture.objects.get_or_create(slug=picture_xml.slug[:120])
- if not created and not overwrite:
- raise Picture.AlreadyExists('Picture %s already exists' % picture_xml.slug)
-
- picture.areas.all().delete()
- picture.title = unicode(picture_xml.picture_info.title)
- picture.extra_info = picture_xml.picture_info.to_dict()
-
- picture_tags = set(catalogue.models.Tag.tags_from_info(picture_xml.picture_info))
- motif_tags = set()
- thing_tags = set()
-
- area_data = {'themes':{}, 'things':{}}
-
- # Treat all names in picture XML as in default language.
- lang = settings.LANGUAGE_CODE
-
- for part in picture_xml.partiter():
- if picture_xml.frame:
- c = picture_xml.frame[0]
- part['coords'] = [[p[0] - c[0], p[1] - c[1]] for p in part['coords']]
- if part.get('object', None) is not None:
- _tags = set()
- for objname in part['object'].split(','):
- objname = objname.strip().capitalize()
- tag, created = catalogue.models.Tag.objects.get_or_create(slug=slughifi(objname), category='thing')
- if created:
- tag.name = objname
- setattr(tag, 'name_%s' % lang, tag.name)
- tag.sort_key = sortify(tag.name)
- tag.save()
- #thing_tags.add(tag)
- area_data['things'][tag.slug] = {
- 'object': objname,
- 'coords': part['coords'],
- }
-
- _tags.add(tag)
- area = PictureArea.rectangle(picture, 'thing', part['coords'])
- area.save()
- area.tags = _tags
- else:
- _tags = set()
- for motifs in part['themes']:
- for motif in motifs.split(','):
- tag, created = catalogue.models.Tag.objects.get_or_create(slug=slughifi(motif), category='theme')
- if created:
- tag.name = motif
- tag.sort_key = sortify(tag.name)
- tag.save()
- #motif_tags.add(tag)
- _tags.add(tag)
- area_data['themes'][tag.slug] = {
- 'theme': motif,
- 'coords': part['coords']
- }
-
- logging.debug("coords for theme: %s" % part['coords'])
- area = PictureArea.rectangle(picture, 'theme', part['coords'])
- area.save()
- area.tags = _tags.union(picture_tags)
-
- picture.tags = picture_tags.union(motif_tags).union(thing_tags)
- picture.areas_json = area_data
-
- if image_file is not None:
- img = image_file
- else:
- img = picture_xml.image_file()
-
- modified = cls.crop_to_frame(picture_xml, img)
- modified = cls.add_source_note(picture_xml, modified)
-
- picture.width, picture.height = modified.size
-
- modified_file = StringIO()
- modified.save(modified_file, format='JPEG', quality=95)
- # FIXME: hardcoded extension - detect from DC format or orginal filename
- picture.image_file.save(path.basename(picture_xml.image_path), File(modified_file))
-
- picture.xml_file.save("%s.xml" % picture.slug, File(xml_file))
- picture.save()
- tasks.generate_picture_html(picture.id)
-
- if close_xml_file:
- xml_file.close()
- if close_image_file:
- image_file.close()
-
- return picture
-
- @classmethod
- def crop_to_frame(cls, wlpic, image_file):
- img = Image.open(image_file)
- if wlpic.frame is None or wlpic.frame == [[0, 0], [-1, -1]]:
- return img
- img = img.crop(itertools.chain(*wlpic.frame))
- return img
-
- @staticmethod
- def add_source_note(wlpic, img):
- from PIL import ImageDraw, ImageFont
- from librarian import get_resource
-
- annotated = Image.new(img.mode,
- (img.size[0], img.size[1] + 40),
- (255, 255, 255)
- )
- annotated.paste(img, (0, 0))
- annotation = Image.new('RGB', (img.size[0] * 3, 120), (255, 255, 255))
- ImageDraw.Draw(annotation).text(
- (30, 15),
- wlpic.picture_info.source_name,
- (0, 0, 0),
- font=ImageFont.truetype(get_resource("fonts/DejaVuSerif.ttf"), 75)
- )
- annotated.paste(annotation.resize((img.size[0], 40), Image.ANTIALIAS), (0, img.size[1]))
- return annotated
-
- @classmethod
- def picture_list(cls, filter=None):
- """Generates a hierarchical listing of all pictures
- Pictures are optionally filtered with a test function.
- """
-
- pics = cls.objects.all().order_by('sort_key')\
- .only('title', 'slug', 'image_file')
-
- if filter:
- pics = pics.filter(filter).distinct()
-
- pics_by_author = SortedDict()
- orphans = []
- for tag in catalogue.models.Tag.objects.filter(category='author'):
- pics_by_author[tag] = []
-
- for pic in pics.iterator():
- authors = list(pic.tags.filter(category='author'))
- if authors:
- for author in authors:
- pics_by_author[author].append(pic)
- else:
- orphans.append(pic)
-
- return pics_by_author, orphans
-
- @property
- def info(self):
- if not hasattr(self, '_info'):
- from librarian import dcparser
- from librarian import picture
- info = dcparser.parse(self.xml_file.path, picture.PictureInfo)
- self._info = info
- return self._info
-
- def pretty_title(self, html_links=False):
- picture = self
- names = [(tag.name, tag.get_absolute_url())
- for tag in self.tags.filter(category='author')]
- names.append((self.title, self.get_absolute_url()))
-
- if html_links:
- names = ['<a href="%s">%s</a>' % (tag[1], tag[0]) for tag in names]
- else:
- names = [tag[0] for tag in names]
- return ', '.join(names)
-
- def related_themes(self):
- return catalogue.models.Tag.objects.usage_for_queryset(
- self.areas.all(), counts=True).filter(category__in=('theme', 'thing'))
-
- def flush_includes(self, languages=True):
- if not languages:
- return
- if languages is True:
- languages = [lc for (lc, _ln) in settings.LANGUAGES]
- flush_ssi_includes([
- template % (self.pk, lang)
- for template in [
- '/katalog/p/%d/short.%s.html',
- '/katalog/p/%d/mini.%s.html',
- ]
- for lang in languages
- ])
fnp / wolnelektury.git / blobdiff