Hi Glenn,
thanks for your status update! I will test your changes in the next fiew
days.
I'll need support for fo:leaders, so thanks for taking care of that too.
Best regards,
Matthias
On 31.03.2011 00:43, Glenn Adams wrote:
Matthias,
I just updated my working repo git://github.com/skynavga/fop.git with
fixes for fo:table and fo:list-block to account for RTL writing modes;
i.e., table column progression and list-item (label and body) alignment
are now RTL in RTL WM contexts.
In the process, I uncovered two other issues as well, which I am now
working on along with the fo:character problem you reported:
* fo:block-container does not align right in a RTL WM context when
it does not use absolute or fixed positioning;
* fo:leader is not working in a RTL WM context;
I will update you when I have fixes committed for these issues.
G.
On Wed, Mar 23, 2011 at 6:45 AM, Glenn Adams <gl...@skynav.com
<mailto:gl...@skynav.com>> wrote:
Thanks for uncovering these issues. Let me address them and I'll let
you know when they are fixed in my GIT repo. Perhaps after that I
can submit a new patch update for the SVN branch.
G.
2011/3/23 Matthias Reischenbacher <matthias8...@gmx.at
<mailto:matthias8...@gmx.at>>
Glenn,
I just tested a little bit more and the following
questions/problems came up:
1. Are table cells also supposed to flow from right to left in
"rl-tb" writing-mode?
2. Shouldn't list-item labels be displayed on the right side?
3. fo:character seem to overlap in rl mode.
I'm attaching a new test file and the current PDF output.
Thanks,
Matthias
On 22.03.2011 18:27, Matthias Reischenbacher wrote:
Hi Glenn,
thanks again for your help and doing all those fixes. Today
I've retested my
sample file with the git branch and everything works fine
now. I'll do some
more testing in the next weeks and I'll let you know if I
encounter any
problems.
Are you planning to submit a new patch for the apache svn
repo anytime soon?
If not, no problem. I'm just asking because I have some
local modifications
in my svn working copy which I'll have to apply manually to
the git working
copy.
Thanks& best regards,
Matthias
Glenn Adams-2 wrote:
Matthias,
I've fixed the fo:block-container problem as well as
text-align and
treatment of writing-mode on page regions. The fixes are
present in my GIT
repo I referred to earlier (and also include all trunk
commits up to this
point). To be a little more detailed:
- the use of writing-mode="rl" on simple-page-master
now results in
correct interpretation of region-start and region
end; i.e.,
region-start is
now on the right side of the page (with 0 reference
orientation), and
region-end is on the left side;
- the erroneous (historical) mirroring around the y
axis of viewports
with writing-mode="rl", including those generated by
region-* and
block-container, has been removed;
- both text-align and text-align-last now treat
start and end as
relative
to the writing mode, e.g., text-align="start" is on
the right when
writing-mode="rl", etc.
- if no text-align is specified, then in a
writing-mode="rl" context
correctly results in right (i.e., start) alignment,
while in "lr" start
is
on left (assuming reference orientation of 0);
I am aware of an existing problem with
text-align="justify" in RTL WM
contexts, and expect a fix in a day or so.
Let me know if you encounter any other bidi problems.
Also, just as a
reminder, a neutral character, e.g., FULL STOP '.', at
the end of a
paragraph in a block takes on the default direction of
the block. So, if
you
have a block of English text with a period at the end
and it appears in a
RTL WM context, then the period will be placed at the
left of the last
line,
not the right as one might expect. This is actually
correct behavior, and
is
a side effect of the Unicode bidi algorithm. To deal
with this, you can
wrap
the English text including the period with<fo:bidi-override
unicode-bidi="embed" direction="ltr">Sentence(s) with a
period at the
end.</fo:bidi-override>. This will create a LTR
embedding context in the
outer RTL context of the block.
In general, you can use the fo:bidi-override element to
both create bidi
embedding levels and also to override the directionality
of text as would
be
computed by the Unicode bidi algorithm.
G.
On Wed, Mar 9, 2011 at 2:28 PM, Glenn
Adams<gl...@skynav.com <mailto:gl...@skynav.com>> wrote:
I have a fix for the block-container issue as well,
which I will commit
shortly to my GIT repo. The problem was that earlier
(pre complex script)
code apparently assumed that right-to-left writing
mode was handled by
mirroring the CTM around the y axis, so it was
setting the CTM
incorrectly
for the viewport area generated by block-container.
In fact there is no
relationship between WM and reference orientation
(and thus CTM on
viewport
area).
I'll let you know when I've made the commit.
G.
On Wed, Mar 9, 2011 at 2:10 PM, Matthias Reischenbacher<
matthias8...@gmx.at <mailto:matthias8...@gmx.at>>
wrote:
Ok, thanks a lot for your help!
Matthias
Glenn Adams-2 wrote:
It appears the problem is due to a bug
related to the use of
block-container, which I will look into.
However, if you remove
block-container, and put the writing-mode
and (default) font-family on
fo:page-sequence, it should produce correct
results. See attached for
what
I'm getting (using the current GITHUB repo)
with a modified FO.
I would advise you use the GIT repository
for now, because it is kept
up
to
date with my working copy. I submit a patch
irregularly for
integration
into
the SVN Temp_ComplexScripts branch.
G.
On Wed, Mar 9, 2011 at 12:21 PM, Matthias
Reischenbacher<
matthias8...@gmx.at
<mailto:matthias8...@gmx.at>> wrote:
Glenn,
here it goes:
Fo file:
http://old.nabble.com/file/p31109566/hebrew_test.xml
hebrew_test.xml
PDF file:
http://old.nabble.com/file/p31109566/hebrew_test.pdf
hebrew_test.pdf
Should I try building your code on git
hub? I've never used git
therefore
I
first went with the apache SVN branch.
Thanks& Regards,
Matthias
Glenn Adams-2 wrote:
Matthias,
Thanks for the report. Could you
send me the FO input file and PDF
output
file? I am actively testing and
fixing the Bidi and Script support,
with
real-time updates occurring at
git://github.com/skynavga/fop.git
<http://github.com/skynavga/fop.git>.
Regards,
Glenn
On Wed, Mar 9, 2011 at 11:28 AM,
Matthias Reischenbacher<
matthias8...@gmx.at
<mailto:matthias8...@gmx.at>> wrote:
Glenn,
I tried your work today of the
complex script branch. I managed to
generate
a PDF file with Hebrew text
using Arial Unicode MS font and
writing-mode
set
to rl-tb. The Hebrew text is
displayed fine but english
characters
are
also
mirrored. Do I have to set an
additional xsl-fo attribute in order
to
correctly display english
characters or is the BIDI text
algorithm
not
yet
implemented?
Thanks for your help,
Matthias Reischenbacher
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<?xml version="1.0" encoding="UTF-8"?>
<fo:root
xmlns:fo="http://www.w3.org/1999/XSL/Format";>
<fo:layout-master-set>
<fo:simple-page-master master-name="simple"
page-height="5in"
page-width="5in">
<fo:region-body/>
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="simple"
writing-mode="rl-tb"
font-family="Arial Unicode MS">
<fo:flow flow-name="xsl-region-body">
<fo:block>חוברת הוראות בטיחות זו מתמקדת בכמה
מהמצבים העקרוניים
שעשויים להתרחש בעת הפעלת המכונה
ותחזוקתה.</fo:block>
<fo:block>Test</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>
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