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Convert calibre modules to ebook_converter.

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Here is the first batch of modules, which are needed for converting
several formats to LRF. Some of the logic has been change, more cleanups
will follow.
This commit is contained in:
gryf
2020-04-11 19:33:43 +02:00
parent 69d2e536c5
commit 0f9792df36
252 changed files with 1925 additions and 2344 deletions
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7
ebook_converter/utils/fonts/__init__.py
View File

@@ -1,7 +0,0 @@
#!/usr/bin/env python2
# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
from __future__ import absolute_import, division, print_function, unicode_literals
__license__ = 'GPL v3'
__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'

4
ebook_converter/utils/fonts/metadata.py
View File

@@ -10,8 +10,8 @@ from io import BytesIO
from struct import calcsize, unpack, unpack_from
from collections import namedtuple
from calibre.utils.fonts.utils import get_font_names2, get_font_characteristics
from polyglot.builtins import range, unicode_type
from ebook_converter.utils.fonts.utils import get_font_names2, get_font_characteristics
from ebook_converter.polyglot.builtins import range, unicode_type
class UnsupportedFont(ValueError):

49
ebook_converter/utils/fonts/scanner.py
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@@ -10,12 +10,11 @@ import os
from collections import defaultdict
from threading import Thread
from calibre import walk, prints, as_unicode
from calibre.constants import (config_dir, iswindows, isosx, plugins, DEBUG,
from ebook_converter import walk, prints, as_unicode
from ebook_converter.constants import (config_dir, iswindows, isosx, plugins, DEBUG,
isworker, filesystem_encoding)
from calibre.utils.fonts.metadata import FontMetadata, UnsupportedFont
from calibre.utils.icu import sort_key
from polyglot.builtins import itervalues, unicode_type, filter
from ebook_converter.utils.fonts.metadata import FontMetadata, UnsupportedFont
from ebook_converter.polyglot.builtins import itervalues, unicode_type, filter
class NoFonts(ValueError):
@@ -153,12 +152,12 @@ def path_significance(path, folders):
def build_families(cached_fonts, folders, family_attr='font-family'):
families = defaultdict(list)
for f in itervalues(cached_fonts):
if not f:
for font in itervalues(cached_fonts):
if not font:
continue
lf = icu_lower(f.get(family_attr) or '')
lf = (font.get(family_attr) or '').lower()
if lf:
families[lf].append(f)
families[lf].append(font)
for fonts in itervalues(families):
# Look for duplicate font files and choose the copy that is from a
@@ -166,26 +165,26 @@ def build_families(cached_fonts, folders, family_attr='font-family'):
# system directories).
fmap = {}
remove = []
for f in fonts:
fingerprint = (icu_lower(f['font-family']), f['font-weight'],
f['font-stretch'], f['font-style'])
for font in fonts:
fingerprint = (font['font-family'].lower(), font['font-weight'],
font['font-stretch'], font['font-style'])
if fingerprint in fmap:
opath = fmap[fingerprint]['path']
npath = f['path']
npath = font['path']
if path_significance(npath, folders) >= path_significance(opath, folders):
remove.append(fmap[fingerprint])
fmap[fingerprint] = f
fmap[fingerprint] = font
else:
remove.append(f)
remove.append(font)
else:
fmap[fingerprint] = f
for font in remove:
fonts.remove(font)
fmap[fingerprint] = font
for fnt in remove:
fonts.remove(fnt)
fonts.sort(key=font_priority)
font_family_map = dict.copy(families)
font_families = tuple(sorted((f[0]['font-family'] for f in
itervalues(font_family_map)), key=sort_key))
font_families = tuple(sorted((font[0]['font-family'] for font in
itervalues(font_family_map))))
return font_family_map, font_families
# }}}
@@ -198,8 +197,8 @@ class FontScanner(Thread):
Thread.__init__(self)
self.folders = folders + font_dirs() + [os.path.join(config_dir, 'fonts'),
P('fonts/liberation')]
self.folders = [os.path.normcase(os.path.abspath(f)) for f in
self.folders]
self.folders = [os.path.normcase(os.path.abspath(font)) for font in
self.folders]
self.font_families = ()
self.allowed_extensions = allowed_extensions
@@ -218,7 +217,7 @@ class FontScanner(Thread):
'''
self.join()
try:
return self.font_family_map[icu_lower(family)]
return self.font_family_map[family.lower()]
except KeyError:
raise NoFonts('No fonts found for the family: %r'%family)
@@ -264,7 +263,7 @@ class FontScanner(Thread):
:return: (family name, faces) or None, None
'''
from calibre.utils.fonts.utils import (supports_text,
from ebook_converter.utils.fonts.utils import (supports_text,
panose_to_css_generic_family, get_printable_characters)
if not isinstance(text, unicode_type):
raise TypeError(u'%r is not unicode'%text)
@@ -297,7 +296,7 @@ class FontScanner(Thread):
def reload_cache(self):
if not hasattr(self, 'cache'):
from calibre.utils.config import JSONConfig
from ebook_converter.utils.config import JSONConfig
self.cache = JSONConfig('fonts/scanner_cache')
else:
self.cache.refresh()

8
ebook_converter/utils/fonts/utils.py
View File

@@ -10,7 +10,7 @@ import struct
from io import BytesIO
from collections import defaultdict
from polyglot.builtins import iteritems, itervalues, unicode_type, range, as_bytes
from ebook_converter.polyglot.builtins import iteritems, itervalues, unicode_type, range, as_bytes
class UnsupportedFont(ValueError):
@@ -441,7 +441,7 @@ def get_font_for_text(text, candidate_font_data=None):
if candidate_font_data is not None:
ok = supports_text(candidate_font_data, text)
if not ok:
from calibre.utils.fonts.scanner import font_scanner
from ebook_converter.utils.fonts.scanner import font_scanner
family, faces = font_scanner.find_font_for_text(text)
if faces:
with lopen(faces[0]['path'], 'rb') as f:
@@ -450,7 +450,7 @@ def get_font_for_text(text, candidate_font_data=None):
def test_glyph_ids():
from calibre.utils.fonts.free_type import FreeType
from ebook_converter.utils.fonts.free_type import FreeType
data = P('fonts/liberation/LiberationSerif-Regular.ttf', data=True)
ft = FreeType()
font = ft.load_font(data)
@@ -470,7 +470,7 @@ def test_supports_text():
def test_find_font():
from calibre.utils.fonts.scanner import font_scanner
from ebook_converter.utils.fonts.scanner import font_scanner
abcd = '诶比西迪'
family = font_scanner.find_font_for_text(abcd)[0]
print('Family for Chinese text:', family)