src/librarian/covers/widgets/author.py

   1 import PIL.ImageFont
   2 from librarian import get_resource
   3 from librarian.cover import Metric
   4 from ..utils.textbox import TextBox, split_words
   5 from .base import Widget
   6
   7
   8 class AuthorBox(Widget):
   9     font_size = 75
  10     leading = 92
  11
  12     def __init__(self, cover, width):
  13         self.width = width
  14         self.m = Metric(self, cover.m._scale)
  15         super().__init__(cover)
  16
  17     def setup(self):
  18         author_font = PIL.ImageFont.truetype(
  19             get_resource('fonts/SourceSans3VF-Roman.ttf'),
  20             self.m.font_size,
  21             layout_engine=PIL.ImageFont.LAYOUT_BASIC
  22         )
  23         author_font.set_variation_by_axes([600])
  24
  25         translator_font = PIL.ImageFont.truetype(
  26             get_resource('fonts/SourceSans3VF-Roman.ttf'),
  27             self.m.font_size,
  28             layout_engine=PIL.ImageFont.LAYOUT_BASIC
  29         )
  30         translator_font.set_variation_by_axes([400])
  31
  32         authors = [a.readable() for a in self.cover.book_info.authors]
  33         translators = [a.readable() for a in self.cover.book_info.translators]
  34         if authors and translators:
  35             author_str = ', '.join(authors)
  36             translator_str = '(tłum. ' + ', '.join(translators) + ')'
  37             # just print
  38             parts = [author_str, translator_str]
  39
  40             self.textboxes = [
  41                 TextBox(
  42                     self.width,
  43                     self.m.leading * 2,
  44                     [author_str],
  45                     author_font,
  46                     1,
  47                     self.m.leading,
  48                     0,
  49                     1, 0
  50                 ),
  51                 TextBox(
  52                     self.width,
  53                     self.m.leading * 2,
  54                     [translator_str],
  55                     translator_font,
  56                     1,
  57                     self.m.leading,
  58                     0,
  59                     1, 0
  60                 )
  61             ]
  62
  63         else:
  64             assert authors
  65             if len(authors) == 2:
  66                 parts = authors
  67             elif len(authors) > 2:
  68                 parts = [author + ',' for author in authors[:-1]] + [authors[-1]]
  69             else:
  70                 parts = split_words(authors[0])
  71
  72             try:
  73                 self.textboxes = [
  74                     TextBox(
  75                         self.width,
  76                         self.m.leading * 2,
  77                         parts,
  78                         author_font,
  79                         2,
  80                         self.m.leading,
  81                         0,
  82                         1, 0
  83                     )
  84                 ]
  85             except:
  86                 self.textboxes = [
  87                     TextBox(
  88                         self.width,
  89                         self.m.leading * 2,
  90                         parts,
  91                         author_font,
  92                         1,
  93                         self.m.leading,
  94                         0,
  95                         1, 0
  96                     )
  97                 ]
  98         self.margin_top = self.textboxes[0].margin_top
  99
 100     def build(self, w, h):
 101         img = PIL.Image.new('RGBA', (self.width, self.m.leading * 2))
 102         offset = 0
 103         for i, tb in enumerate(self.textboxes):
 104             sub_img = tb.as_pil_image(self.cover.color_scheme['text'])
 105             img.paste(sub_img, (0, self.m.leading * i), sub_img)
 106
 107         return img