1 # -*- coding: utf-8 -*-
2 # This file is part of django-sponsors, licensed under GNU Affero GPLv3 or later.
3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
5 from __future__ import unicode_literals
12 from StringIO import StringIO as BytesIO
14 from django.conf import settings
15 from django.core.files.base import ContentFile
16 from django.db import models
17 from django.utils.translation import ugettext_lazy as _
18 from django.template.loader import render_to_string
20 from jsonfield import JSONField
23 THUMB_WIDTH = getattr(settings, 'SPONSORS_THUMB_WIDTH', 120)
24 THUMB_HEIGHT = getattr(settings, 'SPONSORS_THUMB_HEIGHT', 120)
27 class Sponsor(models.Model):
28 name = models.CharField(_('name'), max_length=120)
29 _description = models.CharField(_('description'), blank=True, max_length=255)
30 logo = models.ImageField(_('logo'), upload_to='sponsorzy/sponsor/logo')
31 url = models.URLField(_('url'), blank=True)
33 def __unicode__(self):
36 def description(self):
37 if len(self._description):
38 return self._description
43 width, height = THUMB_WIDTH, THUMB_HEIGHT
45 simg = Image.open(self.logo.path)
46 width = int(float(simg.size[0]) / simg.size[1] * height)
48 simg = Image.open(self.logo.path)
49 height = int(float(simg.size[1]) / simg.size[0] * width)
53 class SponsorPage(models.Model):
54 name = models.CharField(_('name'), max_length=120)
55 sponsors = JSONField(_('sponsors'), default={})
56 _html = models.TextField(blank=True, editable=False)
57 sprite = models.ImageField(upload_to='sponsorzy/sprite', blank=True)
59 def populated_sponsors(self):
62 for column in self.sponsors:
63 result_group = {'name': column['name'], 'sponsors': []}
64 sponsor_objects = Sponsor.objects.in_bulk(column['sponsors'])
65 for sponsor_pk in column['sponsors']:
67 sponsor = sponsor_objects[sponsor_pk]
71 result_group['sponsors'].append((offset, sponsor))
72 offset -= sponsor.size()[1]
73 result.append(result_group)
76 def render_sprite(self):
78 for column in self.sponsors:
79 sponsor_ids.extend(column['sponsors'])
80 sponsors = Sponsor.objects.in_bulk(sponsor_ids)
83 for sponsor in sponsors.values():
85 total_width = max(total_width, w)
91 sprite = Image.new('RGBA', (total_width, total_height))
93 for i, sponsor_id in enumerate(sponsor_ids):
94 sponsor = sponsors[sponsor_id]
95 simg = Image.open(sponsor.logo.path)
96 thumb_size = sponsor.size()
97 # FIXME: This is too complicated now.
98 if simg.size[0] > thumb_size[0] or simg.size[1] > thumb_size[1]:
101 simg.size[0] * thumb_size[1] / simg.size[1]),
103 simg.size[1] * thumb_size[0] / simg.size[0])
105 simg = simg.resize(size, Image.ANTIALIAS)
107 int((thumb_size[0] - simg.size[0]) / 2),
108 int(offset + (thumb_size[1] - simg.size[1]) / 2),
110 offset += thumb_size[1]
112 sprite.save(imgstr, 'png')
115 self.sprite.delete(save=False)
116 self.sprite.save('sponsorzy/sprite/%s-%d.png' % (self.name, time.time()), ContentFile(imgstr.getvalue()), save=False)
120 html = property(fget=html)
122 def save(self, *args, **kwargs):
124 self._html = render_to_string('sponsors/page.html', {
125 'sponsors': self.populated_sponsors(),
128 return super(SponsorPage, self).save(*args, **kwargs)
130 def __unicode__(self):