It's hard for me to understand what this problem is without more
information. Are these objects inlines or blocks or what?
dave
On Sep 8, 2009, at 6:30 PM, Alex Milowski wrote:
I've been doing some comprehensive testing and find that my technique
for handling fencing isn't working properly when use in nest
constructs or
other situations.
Specifically, the two major problems are:
* the fences do not scale well for large objects
* nested fencing does not seem to be handled properly
The first problem is probably something where I'll need to special
cast
certain common fencing constructors (e.g. square or curly brackets)
and
draw them directly. For example, a matrix bracketed by square
brackets
will probably only look proper when I draw the brackes directly.
The problem of nested fences is much more tricky. I thought I had a
handle on
this with the only odd thing being the need to adjust the fence size
after
a layout pass. You can see this code in the patch [1] and
specifically
by looking and RenderFenced.cpp in [2].
I've been able to make it behave a bit better by calling setHeight()
with the
fence height online #205. It still has trouble laying out the the
open and
close fences and often overlaps the line boxes.
The real problem seems to relate to nested mfenced constructs. A
single
mfenced works but an construct like:
{ < x > }
does not work properly when the 'x' construct has an extended
vertical height
(e.g. a rational function or other large fraction). Then the nested
mfenced
seems to get mixed up. Again, it is like it is trying to constrain
the fencing
into a certain box width or height, the line boxes do not fit, and
then overlap
happens.
Is it possible that just setting the height doesn't help because it
is a writing
direction layout/width problem?
[1] https://bugs.webkit.org/show_bug.cgi?id=28982
[2] https://bugs.webkit.org/attachment.cgi?id=39223&action=prettypatch
--
--Alex Milowski
"The excellence of grammar as a guide is proportional to the paucity
of the
inflexions, i.e. to the degree of analysis effected by the language
considered."
Bertrand Russell in a footnote of Principles of Mathematics
_______________________________________________
webkit-dev mailing list
[email protected]
http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
_______________________________________________
webkit-dev mailing list
[email protected]
http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
