X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/0cefa871f6f1253be544a39c51e1f66f536805ce..13480b3da2d3da87f1d99c6d340c1553ca9d89c1:/librarian/formats/cover/wolnelektury/__init__.py

diff --git a/librarian/formats/cover/wolnelektury/__init__.py b/librarian/formats/cover/wolnelektury/__init__.py
new file mode 100644
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+++ b/librarian/formats/cover/wolnelektury/__init__.py
@@ -0,0 +1,166 @@
+# -*- 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.
+#
+from PIL import Image, ImageFont, ImageDraw
+from librarian.utils import get_resource
+from .. import Cover, Metric, TextBox
+
+
+class WLCover(Cover):
+    """Default Wolne Lektury cover generator."""
+    format_name = u"WL-style cover image"
+
+    width = 600
+    height = 833
+    uses_dc_cover = True
+    author_font_ttf = get_resource('fonts/JunicodeWL-Regular.ttf')
+    author_font_size = 20
+    author_lineskip = 30
+    title_font_ttf = get_resource('fonts/DejaVuSerif-Bold.ttf')
+    title_font_size = 30
+    title_lineskip = 40
+    title_box_width = 350
+    
+    box_top_margin = 100
+    box_bottom_margin = 100
+    box_padding_y = 20
+    box_above_line = 10
+    box_below_line = 15
+    box_line_left = 75
+    box_line_right = 275
+    box_line_width = 2
+
+    logo_top = 15
+    logo_width = 140
+
+    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, doc, format=None, width=None, height=None, with_logo=False):
+        super(WLCover, self).__init__(doc, format=format, width=width, height=height)
+        self.kind = doc.meta.get_one('kind')
+        self.epoch = doc.meta.get_one('epoch')
+        self.with_logo = with_logo
+        # TODO
+        if doc.meta.get('cover_url'):
+            url = doc.meta.get('cover_url')[0]
+            bg_src = None
+            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):
+        metr = Metric(self, self.scale)
+        img = Image.new('RGB', (metr.width, metr.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, metr.bar_width, metr.height), fill=epoch_color)
+
+        if self.background_img:
+            src = Image.open(self.background_img)
+            trg_size = (metr.width - metr.bar_width, metr.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, Image.ANTIALIAS)
+                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, Image.ANTIALIAS)
+                src = src.crop((cut, 0, src.size[0] - cut, src.size[1]))
+
+            img.paste(src, (metr.bar_width, 0))
+            del src
+
+        box = TextBox(metr.title_box_width, metr.height, padding_y=metr.box_padding_y)
+        author_font = ImageFont.truetype(
+            self.author_font_ttf, metr.author_font_size)
+        box.text(self.pretty_author(),
+                 font=author_font,
+                 line_height=metr.author_lineskip,
+                 color=self.author_color,
+                 shadow_color=self.author_shadow,
+                )
+
+        box.skip(metr.box_above_line)
+        box.draw.line((metr.box_line_left, box.height, metr.box_line_right, box.height),
+                fill=self.author_color, width=metr.box_line_width)
+        box.skip(metr.box_below_line)
+
+        title_font = ImageFont.truetype(
+            self.title_font_ttf, metr.title_font_size)
+        box.text(self.pretty_title(),
+                 line_height=metr.title_lineskip,
+                 font=title_font,
+                 color=epoch_color,
+                 shadow_color=self.title_shadow,
+                )
+
+        if self.with_logo:
+            logo = Image.open(get_resource('res/wl-logo-mono.png'))
+            logo = logo.resize((metr.logo_width, logo.size[1] * metr.logo_width / logo.size[0]), Image.ANTIALIAS)
+            alpha = logo.split()[3]
+            alpha = ImageEnhance.Brightness(alpha).enhance(.75)
+            logo.putalpha(alpha)
+            box.skip(metr.logo_top + logo.size[1])
+
+        box_img = box.image()
+
+        if self.kind == 'Liryka':
+            # top
+            box_top = metr.box_top_margin
+        elif self.kind == 'Epika':
+            # bottom
+            box_top = metr.height - metr.box_bottom_margin - box_img.size[1]
+        else:
+            # center
+            box_top = (metr.height - box_img.size[1]) / 2
+
+        box_left = metr.bar_width + (metr.width - metr.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)
+
+        if self.with_logo:
+            img.paste(logo, 
+                (box_left + (box_img.size[0] - logo.size[0]) / 2,
+                    box_top + box_img.size[1] - metr.box_padding_y - logo.size[1]), mask=logo)
+
+        return img