--- /dev/null
+# -*- 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
fnp / librarian.git / blobdiff