X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/752f75024e979e0b4756da3ab6f5a817fa2c6690..842aeda3f5811649639b281c30c52b87306bae67:/apps/sponsors/models.py?ds=sidebyside diff --git a/apps/sponsors/models.py b/apps/sponsors/models.py index db5c1442c..d91c8f420 100644 --- a/apps/sponsors/models.py +++ b/apps/sponsors/models.py @@ -1,24 +1,34 @@ +# -*- 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. +# +import time +from StringIO import StringIO from django.db import models from django.utils.translation import ugettext_lazy as _ from django.template.loader import render_to_string +from PIL import Image from sorl.thumbnail.fields import ImageWithThumbnailsField from sponsors.fields import JSONField +from django.core.files.base import ContentFile +THUMB_WIDTH=120 +THUMB_HEIGHT=120 class Sponsor(models.Model): name = models.CharField(_('name'), max_length=120) _description = models.CharField(_('description'), blank=True, max_length=255) logo = ImageWithThumbnailsField( _('logo'), - upload_to='sponsors/sponsor/logo', + upload_to='sponsorzy/sponsor/logo', thumbnail={ - 'size': (120, 60), + 'size': (THUMB_WIDTH, THUMB_HEIGHT), 'extension': 'png', 'options': ['pad', 'detail'], }) url = models.URLField(_('url'), blank=True, verify_exists=False) - + def __unicode__(self): return self.name @@ -33,31 +43,51 @@ class SponsorPage(models.Model): name = models.CharField(_('name'), max_length=120) sponsors = JSONField(_('sponsors'), default={}) _html = models.TextField(blank=True, editable=False) - + sprite = models.ImageField(upload_to='sponsorzy/sprite', blank=True) + def populated_sponsors(self): result = [] + offset = 0 for column in self.get_sponsors_value(): result_group = {'name': column['name'], 'sponsors': []} sponsor_objects = Sponsor.objects.in_bulk(column['sponsors']) for sponsor_pk in column['sponsors']: try: - result_group['sponsors'].append(sponsor_objects[sponsor_pk]) + result_group['sponsors'].append((offset, sponsor_objects[sponsor_pk])) + offset -= THUMB_HEIGHT except KeyError: pass result.append(result_group) return result - + + def render_sprite(self): + sponsor_ids = [] + for column in self.get_sponsors_value(): + sponsor_ids.extend(column['sponsors']) + sponsors = Sponsor.objects.in_bulk(sponsor_ids) + sprite = Image.new('RGBA', (THUMB_WIDTH, len(sponsors)*THUMB_HEIGHT)) + for i, sponsor_id in enumerate(sponsor_ids): + simg = Image.open(sponsors[sponsor_id].logo.thumbnail.dest) + sprite.paste(simg, (0, i*THUMB_HEIGHT)) + imgstr = StringIO() + sprite.save(imgstr, 'png') + + if self.sprite: + self.sprite.delete(save=False) + self.sprite.save('sponsorzy/sprite/%s-%d.png' % (self.name, time.time()), ContentFile(imgstr.getvalue()), save=False) + def html(self): return self._html html = property(fget=html) def save(self, *args, **kwargs): + self.render_sprite() self._html = render_to_string('sponsors/page.html', { - 'column_width': self.column_width, 'sponsors': self.populated_sponsors(), + 'page': self }) return super(SponsorPage, self).save(*args, **kwargs) - + def __unicode__(self): return self.name