def run_compress(self):
from calibre.gui2.tweak_book import current_container
from calibre.ebooks.oeb.polish.images import compress_images
report = []
try:
self.result = (compress_images(
current_container(), report=report.append, names=self.names, jpeg_quality=self.jpeg_quality,
progress_callback=self.progress_callback
)[0], report)
except Exception:
import traceback
self.result = (None, traceback.format_exc())
self.cidone.emit()
def run_compress(self):
from calibre.gui2.tweak_book import current_container
from calibre.ebooks.oeb.polish.images import compress_images
report = []
try:
self.result = (compress_images(
current_container(), report=report.append, names=self.names, jpeg_quality=self.jpeg_quality,
progress_callback=self.progress_callback
)[0], report)
except Exception:
import traceback
self.result = (None, traceback.format_exc())
self.cidone.emit()
def polish_one(ebook, opts, report, customization=None):
rt = lambda x: report('\n### ' + x)
jacket = None
changed = False
customization = customization or CUSTOMIZATION.copy()
if opts.subset or opts.embed:
stats = StatsCollector(ebook, do_embed=opts.embed)
if opts.opf:
changed = True
rt(_('Updating metadata'))
update_metadata(ebook, opts.opf)
jacket = find_existing_jacket(ebook)
if jacket is not None:
replace_jacket(ebook, jacket)
report(_('Updated metadata jacket'))
report(_('Metadata updated\n'))
if opts.cover:
changed = True
rt(_('Setting cover'))
set_cover(ebook, opts.cover, report)
report('')
if opts.jacket:
changed = True
rt(_('Inserting metadata jacket'))
if jacket is None:
if add_or_replace_jacket(ebook):
report(_('Existing metadata jacket replaced'))
else:
report(_('Metadata jacket inserted'))
else:
report(_('Existing metadata jacket replaced'))
report('')
if opts.remove_jacket:
rt(_('Removing metadata jacket'))
if remove_jacket(ebook):
report(_('Metadata jacket removed'))
changed = True
else:
report(_('No metadata jacket found'))
report('')
if opts.smarten_punctuation:
rt(_('Smartening punctuation'))
if smarten_punctuation(ebook, report):
changed = True
report('')
if opts.embed:
rt(_('Embedding referenced fonts'))
if embed_all_fonts(ebook, stats, report):
changed = True
report('')
if opts.subset:
rt(_('Subsetting embedded fonts'))
if subset_all_fonts(ebook, stats.font_stats, report):
changed = True
report('')
if opts.remove_unused_css:
rt(_('Removing unused CSS rules'))
if remove_unused_css(
ebook, report, remove_unused_classes=customization['remove_unused_classes'], merge_rules=customization['merge_identical_selectors']):
changed = True
report('')
if opts.compress_images:
rt(_('Losslessly compressing images'))
if compress_images(ebook, report)[0]:
changed = True
report('')
return changed
def polish_one(ebook, opts, report, customization=None):
rt = lambda x: report('\n### ' + x)
jacket = None
changed = False
customization = customization or CUSTOMIZATION.copy()
has_subsettable_fonts = False
for x in iter_subsettable_fonts(ebook):
has_subsettable_fonts = True
break
if (opts.subset and has_subsettable_fonts) or opts.embed:
stats = StatsCollector(ebook, do_embed=opts.embed)
if opts.opf:
changed = True
rt(_('Updating metadata'))
update_metadata(ebook, opts.opf)
jacket = find_existing_jacket(ebook)
if jacket is not None:
replace_jacket(ebook, jacket)
report(_('Updated metadata jacket'))
report(_('Metadata updated\n'))
if opts.cover:
changed = True
rt(_('Setting cover'))
set_cover(ebook, opts.cover, report)
report('')
if opts.jacket:
changed = True
rt(_('Inserting metadata jacket'))
if jacket is None:
if add_or_replace_jacket(ebook):
report(_('Existing metadata jacket replaced'))
else:
report(_('Metadata jacket inserted'))
else:
report(_('Existing metadata jacket replaced'))
report('')
if opts.remove_jacket:
rt(_('Removing metadata jacket'))
if remove_jacket(ebook):
report(_('Metadata jacket removed'))
changed = True
else:
report(_('No metadata jacket found'))
report('')
if opts.smarten_punctuation:
rt(_('Smartening punctuation'))
if smarten_punctuation(ebook, report):
changed = True
report('')
if opts.embed:
rt(_('Embedding referenced fonts'))
if embed_all_fonts(ebook, stats, report):
changed = True
has_subsettable_fonts = True
report('')
if opts.subset:
if has_subsettable_fonts:
rt(_('Subsetting embedded fonts'))
if subset_all_fonts(ebook, stats.font_stats, report):
changed = True
else:
rt(_('No embedded fonts to subset'))
report('')
if opts.remove_unused_css:
rt(_('Removing unused CSS rules'))
if remove_unused_css(
ebook,
report,
remove_unused_classes=customization['remove_unused_classes'],
merge_rules=customization['merge_identical_selectors'],
merge_rules_with_identical_properties=customization[
'merge_rules_with_identical_properties'],
remove_unreferenced_sheets=customization[
'remove_unreferenced_sheets']):
changed = True
report('')
if opts.compress_images:
rt(_('Losslessly compressing images'))
if compress_images(ebook, report)[0]:
changed = True
report('')
if opts.upgrade_book:
rt(_('Upgrading book, if possible'))
if upgrade_book(ebook, report, remove_ncx=customization['remove_ncx']):
changed = True
report('')
if opts.remove_soft_hyphens:
rt(_('Removing soft hyphens'))
remove_soft_hyphens(ebook, report)
changed = True
elif opts.add_soft_hyphens:
rt(_('Adding soft hyphens'))
add_soft_hyphens(ebook, report)
changed = True
return changed
