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Preload embedded fonts so that the preview panel works off the bat

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This commit is contained in:
Kovid Goyal 2013-12-02 20:46:29 +05:30
parent 6e9f48b175
commit 5c6ec901da
1 changed files with 11 additions and 3 deletions
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14
src/calibre/gui2/tweak_book/boss.py
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@ -18,7 +18,7 @@ from calibre import prints, prepare_string_for_xml
from calibre.ptempfile import PersistentTemporaryDirectory
from calibre.ebooks.oeb.base import urlnormalize
from calibre.ebooks.oeb.polish.main import SUPPORTED, tweak_polish
from calibre.ebooks.oeb.polish.container import get_container as _gc, clone_container, guess_type
from calibre.ebooks.oeb.polish.container import get_container as _gc, clone_container, guess_type, OEB_FONTS
from calibre.ebooks.oeb.polish.cover import mark_as_cover, mark_as_titlepage
from calibre.ebooks.oeb.polish.pretty import fix_all_html, pretty_all
from calibre.ebooks.oeb.polish.replace import rename_files, replace_file
@ -36,7 +36,16 @@ from calibre.gui2.tweak_book.preferences import Preferences
def get_container(*args, **kwargs):
kwargs['tweak_mode'] = True
return _gc(*args, **kwargs)
container = _gc(*args, **kwargs)
# We preload the embedded fonts from this book, so that the preview panel
# works
font_cache.remove_fonts()
for name, mt in container.mime_map.iteritems():
if mt in OEB_FONTS and container.exists(name):
with container.open(name, 'rb') as f:
raw = f.read()
font_cache.add_font(raw)
return container
class BusyCursor(object):
@ -167,7 +176,6 @@ class Boss(QObject):
parse_worker.clear()
container = job.result
set_current_container(container)
font_cache.remove_fonts()
self.current_metadata = self.gui.current_metadata = container.mi
self.global_undo.open_book(container)
self.gui.update_window_title()