epub covers

[librarian.git] / librarian / formats / cover / evens / __init__.py

diff --git a/librarian/formats/cover/evens/__init__.py b/librarian/formats/cover/evens/__init__.py
new file mode 100644 (file)
index 0000000..4207d46
--- /dev/null
+++ b/librarian/formats/cover/evens/__init__.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+import urllib
+from urllib2 import urlopen, URLError
+
+from librarian import DCNS, BuildError
+from .. import Cover
+
+
+class EvensCover(Cover):
+    format_name = u"Evens cover image"
+    width = 1024
+    height = 1365
+    author_top = 900
+    title_top = 30
+    logo_bottom = 100
+
+    def __init__(self, doc, format=None, width=None, height=None):
+        super(EvensCover, self).__init__(doc, format=format, width=width, height=height)
+        self.doc = doc
+
+    def set_images(self, ctx):
+        cover_url = self.doc.meta.get(DCNS('relation.coverimage.url'))[0]
+        if cover_url.startswith('file://'):
+            cover_url = ctx.files_path + urllib.quote(cover_url[7:])
+        try:
+            self.background_img = urlopen(cover_url)
+        except URLError:
+            raise BuildError('Cannot open the cover image: %s' % cover_url)
+
+        if getattr(ctx, 'cover_logo', None):
+            self.logo_width = 150
+            self.logo_file = urlopen(ctx.cover_logo)