Dear All,
I have a few questions and would really appreciate if they could be answered
If I understand correctly:
1. A lyx::Layout corresponds to something like a section, abstract, title or
standard
2. In .lyx file a layout begins and ends like this
\begin_layout standard
\end_layout
3. Each layout is basically represented by a lyx:Paragraph
Q. Given what a lyx:Layout is, then what is a lyx::InsetLayout?
Q. I understand the concept of inset positions in a paragraph, e.g. a
particular inset is on position 33 of a particular paragraph. But what
happens in the case of InsetMath? What is the concept of positions in
them... for example a InsetMathFrac will have 2 cells but does it any
concept of pos()? How would you locate, say an InsetMath-derived-class in a
nested situtation? i.e. does it just become about which cell an Inset is
nested in or does pos() still play a role here?
Here is what I think happens, please confirm if my understanding is correct.
Note let # indicate the current cursor position, let XXX be characters and
13/(1/2) be a nested InsetMathFrac
13
XXX-----
1/2#
Let us have Cursor class instance (pointing to # position)
My understanding is that the Cursor::slices_ member would be a vector with
CursorSlice #1 would the top level InsetText with pid=1, pos=4, cell=?? as
the member variables of the CursorSlice
CursorSlice #2 would be an InsetFracMath with cell=2, pid=??, pos=?? as the
member variables of the CursorSlice
CursorSlice #3 would be an InsetFracMath with cell=2, pid=??, pos=?? as the
member variables of the CursorSlice
Is my understanding correct? My question, restated, do things like position,
pid have any meaning within InsetMath?
Q. What is the concept of a StableDocIterator and what is the use of zeroing
out all the inset_ pointers in each CursorSlice? How does a
stableDocIterator do its job in the UndoElement?
Thanks for your time,
Sidharth
Thanks,
Sidharth
--
Sidharth Kshatriya
www.sidk.info
