Subject: bug #1120 (section breaks)
From: Tomas Frydrych (tomas@frydrych.uklinux.net)
Date: Wed Mar 14 2001 - 10:56:16 CST
this bug was reported by Jesper, and has to do with consequtive
section breaks.
I had a go at this one, and was not able to crack it, but made the
following observations so far:
when inserting a section break we first insert a block, which in turn
inserts a formating mark, then we insert the actual section break.
The resulting layout order is
PSfp
where P is the original block, S is the section, f is the formating
mark and p is the block we created.
While the layout order is as it should be, there are a few wierd
things: (1) the stuff in the piecetable seems to be messed up so
that where one expects P one gets S. (2) it is possible to move the
cursor between P and S, even though there is no run representing
S, and insert another section break at that position. Such a section
break then appears at the very end of the document, even though
the layout order is correct, as moving arround with the keyboard
arrows shows.
(1) is what causes the problem that Jesper logged; when one tries
to create another section just after the last character of P, AW
complains that there is no block between the two sections, but I
have not been able to work out why the piecetable is not in sync
with the layout.
(2) is probably to do with the need to be able to delete a section
break, but I think we should have a specialised run to handle this,
which could be displayed with the special characters, or ignored
completely when the user does not want to see special chars. At
the moment the section break behaves as a 0-with, but real,
character in both modes. We draw a line to indicate a section
when displaying special chars, but the line does not behave as a
character, i.e., it cannot be selected.
Tomas
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