Separate the general from the WL-specific: PDF

[librarian.git] / librarian / styles / wolnelektury / cover.py

diff --git a/librarian/styles/wolnelektury/cover.py b/librarian/styles/wolnelektury/cover.py
new file mode 100644 (file)
index 0000000..b417216
--- /dev/null
+++ b/librarian/styles/wolnelektury/cover.py
@@ -0,0 +1,137 @@
+# -*- 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 Image, ImageFont, ImageDraw
+from StringIO import StringIO
+from librarian import get_resource, URLOpener
+from librarian.cover import Cover, TextBox
+
+
+class WLCover(Cover):
+    """Default Wolne Lektury cover generator."""
+    width = 600
+    height = 833
+    uses_dc_cover = True
+    author_font = ImageFont.truetype(
+        get_resource('fonts/JunicodeWL-Regular.ttf'), 20)
+    author_lineskip = 30
+    title_font = ImageFont.truetype(
+        get_resource('fonts/DejaVuSerif-Bold.ttf'), 30)
+    title_lineskip = 40
+    title_box_width = 350
+    bar_width = 35
+    background_color = '#444'
+    author_color = '#444'
+    default_background = get_resource('res/cover.png')
+    format = 'JPEG'
+
+    epoch_colors = {
+        u'Starożytność': '#9e3610',
+        u'Średniowiecze': '#564c09',
+        u'Renesans': '#8ca629',
+        u'Barok': '#a6820a',
+        u'Oświecenie': '#f2802e',
+        u'Romantyzm': '#db4b16',
+        u'Pozytywizm': '#961060',
+        u'Modernizm': '#7784e0',
+        u'Dwudziestolecie międzywojenne': '#3044cf',
+        u'Współczesność': '#06393d',
+    }
+
+    def __init__(self, book_info, format=None, image_cache=None):
+        super(WLCover, self).__init__(book_info, format=format)
+        self.kind = book_info.kind
+        self.epoch = book_info.epoch
+        if book_info.cover_url:
+            url = book_info.cover_url
+            bg_src = None
+            if image_cache:
+                from urllib import quote
+                try:
+                    bg_src = URLOpener().open(image_cache + quote(url, safe=""))
+                except:
+                    pass
+            if bg_src is None:
+                bg_src = URLOpener().open(url)
+            self.background_img = StringIO(bg_src.read())
+            bg_src.close()
+        else:
+            self.background_img = self.default_background
+
+    def pretty_author(self):
+        return self.author.upper()
+
+    def image(self):
+        img = Image.new('RGB', (self.width, self.height), self.background_color)
+        draw = ImageDraw.Draw(img)
+
+        if self.epoch in self.epoch_colors:
+            epoch_color = self.epoch_colors[self.epoch]
+        else:
+            epoch_color = '#000'
+        draw.rectangle((0, 0, self.bar_width, self.height), fill=epoch_color)
+
+        if self.background_img:
+            src = Image.open(self.background_img)
+            trg_size = (self.width - self.bar_width, self.height)
+            if src.size[0] * trg_size[1] < src.size[1] * trg_size[0]:
+                resized = (
+                    trg_size[0],
+                    src.size[1] * trg_size[0] / src.size[0]
+                )
+                cut = (resized[1] - trg_size[1]) / 2
+                src = src.resize(resized)
+                src = src.crop((0, cut, src.size[0], src.size[1] - cut))
+            else:
+                resized = (
+                    src.size[0] * trg_size[1] / src.size[1],
+                    trg_size[1],
+                )
+                cut = (resized[0] - trg_size[0]) / 2
+                src = src.resize(resized)
+                src = src.crop((cut, 0, src.size[0] - cut, src.size[1]))
+
+            img.paste(src, (self.bar_width, 0))
+            del src
+
+        box = TextBox(self.title_box_width, self.height, padding_y=20)
+        box.text(self.pretty_author(),
+                 font=self.author_font,
+                 line_height=self.author_lineskip,
+                 color=self.author_color,
+                 shadow_color=self.author_shadow,
+                )
+
+        box.skip(10)
+        box.draw.line((75, box.height, 275, box.height),
+                fill=self.author_color, width=2)
+        box.skip(15)
+
+        box.text(self.pretty_title(),
+                 line_height=self.title_lineskip,
+                 font=self.title_font,
+                 color=epoch_color,
+                 shadow_color=self.title_shadow,
+                )
+        box_img = box.image()
+
+        if self.kind == 'Liryka':
+            # top
+            box_top = 100
+        elif self.kind == 'Epika':
+            # bottom
+            box_top = self.height - 100 - box_img.size[1]
+        else:
+            # center
+            box_top = (self.height - box_img.size[1]) / 2
+
+        box_left = self.bar_width + (self.width - self.bar_width -
+                        box_img.size[0]) / 2
+        draw.rectangle((box_left, box_top,
+            box_left + box_img.size[0], box_top + box_img.size[1]),
+            fill='#fff')
+        img.paste(box_img, (box_left, box_top), box_img)
+
+        return img