The setting of insets positions was done twice in updateMetrics.
When one of the paragraph is a huge branch, this can be very expensive.
This leads to a 17% improvement on updateMetrics time on a scrolling test.
Part of bug #12297
(cherry picked from commit d19ade9a61)
The idea of single par update is to try to re-break only the paragraph
containing the cursor (if this paragraph contains insets etc.,
re-breaking will recursively descend).
The existing single paragraph update mechanism was tailored to work
only at top level. Indeed changing a paragraph nested into an inset may
lead to larger changes.
This commit tries a rather naive approach that seems to work well: we
need a full redraw if either
1/ the height has changed
or
2/ the width has changed and it was equal to the text metrics width;
the goal is to catch the case of a one-row inset that grows with
its contents, but optimize the case of typing in a short paragraph
part of a larger inset.
NOTE: if only the height has changed, then it should be
possible to update all metrics at minimal cost. However,
since this is risky, we do not try that right now.
Part of bug #12297.
(cherry picked from commit 9a96726bcd)
We were doing this on every mouse movement. I.e., for every single
pixel the mouse traverses. It can be expensive if there are a lot
of math insets.
(cherry picked from commit 4e8aa89eb9)
- avoid copying of configure.log
- avoid copying of chkconfig.ltx
There is a report of a hang on first start of LyX with new major release.
The removal of the chkconfig.ltx (leftover from early LyX versions) fixed the issue.
(cherry picked from commit 945a02e2e1)
This is used by getDate/getTime, which actually should not be
InsetInfoParams methods, but functions in anonymous namespace.
(cherry picked from commit 51562ff377)
Qt::ImAnchorRectangle has only been introduced in Qt 5.7. Since it is
used to answer a query from the IM machinery, there is no need for
it with older Qt versions.
(cherry picked from commit 6260689fd5)
This was completely broken: the IDs have been escaped in the LyX file
(which they absolutely shouldn't) but not in all LaTeX output (which
they should).
(cherry picked from commit 98080ca0d5)
