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If there is an error rendering the cover thumbnail report it to the GUI with thumb=None

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Kovid Goyal 2024-01-27 09:06:01 +05:30
parent f97147afec
commit 6f82b8e36c
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1 changed files with 9 additions and 9 deletions
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18
src/calibre/gui2/library/alternate_views.py
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@ -915,21 +915,21 @@ class GridView(QListView):
return
if self.ignore_render_requests.is_set():
continue
thumb = None
try:
# Fetch the cover from the cache or file system
cover_tuple = self.fetch_cover_from_cache(book_id)
# Render/resize the cover.
thumb = self.make_thumbnail(cover_tuple)
# Tell the GUI to redisplay the cover. These can queue, but
# the work is limited to painting the cover if it is visible
# so there shouldn't be much performance lag. Using a
# dispatcher to eliminate the queue would probably be worse.
self.update_item.emit(book_id, thumb)
except:
except Exception:
import traceback
traceback.print_exc()
# Tell the GUI to redisplay the cover. These can queue, but
# the work is limited to painting the cover if it is visible
# so there shouldn't be much performance lag. Using a
# dispatcher to eliminate the queue would probably be worse.
self.update_item.emit(book_id, thumb)
finally:
q.task_done()
@ -1004,7 +1004,7 @@ class GridView(QListView):
cdata = cover_tuple.cdata
book_id = cover_tuple.book_id
tc = self.thumbnail_cache
# thumb = None
thumb = None
if cover_tuple.has_cover:
# cdata contains either the resized thumbnail, the full cover.jpg,
# or None if cover.jpg isn't valid