This crash occurred starting with 553bebc3, and can be triggered
when preview is enabled both in preferences and in a child document
inset. For a minimal example, see the following ML thread:
https://www.mail-archive.com/search?l=mid&q=20191209002609.6fao3dljtf3ohl25%40tallinn
This fix restores behavior to before that commit for the case when
oldEnc is 0.
This is better than making sure that the inset has exactly one cell.
In the future, inset-dissolve could be extended to dissolve all the
cells contents in the enclosing text.
Note that this check does not appear in mathed, and using dissolve in
e.g. fraction inset may lead to data loss (only current cell contents
is preserved).
We tend to have insets which buffer() member is invalid. To help
debugging, this commit paints their background in red when devel-mode
is on.
To this end, a new method develMode() is added to the Painter class.
With this commit, it is easy to see that macro template do not have a
proper buffer set!
Make InsetGrid::colAlign a normal method and make it check whether
buffer is valid before using it. This avoids crashes as we have seen
in 2.3.3 (see e.g. #11686).
There is still an assertion so that failure is noticeable before release.
Using a map would sort the elements in alphabetic ordering, which
means that when the number of elements is larger than 100, the wrong
elements get pruned.
This commit uses a list instead. Searching an item needs linear time,
but this should not be a problem for a list with less than 100
elements.
Fixes bug #10310.
Horizontal scrolling used to be taken into account when updating caret
geometry. This is wrong since it may have changed when time comes to
draw the caret. This leads to a situation where the first apparition
of the caret is at a wrong place.
Now the extra horizontal offset is used at drawing time.
Fixes bug #11603.
Rename local variables the hide other ones: get_binary_path, find_python_binary
Use unsigned int for conversion from hex using sscanf().
FileName::checksum(), parsecmd (SystemCall): use explcit values rather
than variable which value is known.
