sw: speed up DoIdleJobs(WORD_COUNT)

SwTextNode::CountWords() has early returns that don't clear the
WordCountDirty flag, for nodes that don't contain any plain text.

This speeds things up considerably for tdf135116-1.odt, which didn't
finish the idle jobs after 5 minutes in an optimized 7.1 build, because
the time slice tends to expire iterating nodes in word-count before it
can make progress.

With this it does ~25 WORD_COUNT pages and then ~90 AUTOCOMPLETE_WORDS
pages per idle, sending OnLayoutFinished after 13-14 seconds.

jmux just pointed me to commit 0fedac18214a6025401c4c426466a5166553e8ec
which is not in 7.1 today and may have improved the performance here.

Change-Id: I5e9651da3a173649c49fc36edefb23298dfd6bc4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/114936
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>

0 files changed, 0 insertions, 0 deletions