The code was expecting that all properties were specified
in the argument and not only some. Simply do not process
those properties not specified in the argument.
Reorder the tests so that, when the flag Update::SinglePar has been
specified, it does not take precedence over Update::Force flag.
This fixes the crash with inset-split.
This bug is pretty old, but it was not visible because the grey area
below the document would overwrite it.
It would be better to close the frame at the end of the document, but
this is for later.
The LFUN buffer-reset-export states to start afresh the export for the
next run, but in fact, the boolean was never reset, so that this was
done for all subsequent runs unless the buffer had been closed and
reopened.
Now the lfun does what it states and only acts on the next pass.
The IDs are used to link to specific elements (for instance, the User's guide nomenclature).
The beginning of the list (<ul> or <ol>) has the same magic ID as the first item of the list.
The effect is closer to what LyX offers. Previously, the percentage was of the HTML container (often, the whole page), meaning that images were oversized. Now, the scale is respected in the same way as LyX, but its bounding box is off. Overall, the result is better, but not what users expect.
The code is not ready for situations where some paragraphs that are
not visible have metrics available. This has been made visible by
a4d9315b, which removes a couple of full metrics updates: the screen
was not correctly scrolled after a scrollToCursor() call.
In PararagraphMetrics, some methods are added to be able to handle the
fact that paragraphs have or do not have a position.
In TextMetrics, a new method returns the first visible paragraph.
Finally, in BufferView::updateMetrics, the paragraphs' positions are
reset (in the case where everything is not cleared) and some care is
taken to skip the ones that are not relevant.
The assumption outside of this method is that all the paragraphs that
are in the TextMetrics are visible (we are talking about top-level
TextMetrics here). This could be changed (in order to avoid
recomputing paragraph metrics), but the cost is high in terms of
complexity and it is not clear that the gain in terms of performance
would be important.
