Bug 67327

Tduell: could you attach the file so we can try to reproduce this?
It could be interesting you submit a bug about your crash for 4.0 version.
Indeed, you must know that 3.6 is at end of life (see https://wiki.documentfoundation.org/ReleasePlan#3.6_release) and 3.6.7 is the last TDF version. So even if there's a bug about this on 3.6.7, there won't be any 3.6.8, a priori, with a fix.

Created attachment 83107 [details]
odt file with maths demonstrates the problem

Comment on attachment 83107 [details]
odt file with maths demonstrates the problem

The attached odt file when saved as .doc and reloaded back into LO has the maths displayed incorrectly.
I am now using LO 4.1.0.1 from Fedora 19 repo, and it displays the same behaviour

Created attachment 83584 [details]
rendering from master sources/4.1

On pc Debian x86-64 with master sources updated today and 4.1 sources updated yesterday, I had this rendering.

TDuell: thank you for the file attached.
As you may have seen, I uploaded an image showing the rendering. If it doesn't correspond to what you expected, could you attach a screenshot of you expected?

Created attachment 83596 [details]
Screenshot from .doc rendering

This image is a screenshot of how a saved .doc looks when reloaded back into LO 4.1.
The maths looks good in saved LO .odt, but when saved as .doc and reloaded are rendered distorted.
I have reports that the maths are sometimes unreadable when my .doc are rendered in MS Word.

Created attachment 83600 [details]
rendering from master sources after doc conversion

TDuell: I reproduced the same problem with 4.1 sources but there's a lot of improvement with master sources (see attachment).

Frédéric: the last screenshot I attached shows you greatly improved the rendering of math equation after doc conversion. For this case there are still small tweaks to do but I think it could be interesting to cherry-pick the changes you made in 4.1 sources, what do you think?

(In reply to comment #7)
> Created attachment 83600 [details]
> rendering from master sources after doc conversion
> 
> TDuell: I reproduced the same problem with 4.1 sources but there's a lot of
> improvement with master sources (see attachment).

Yes, that does look much better. Hard to distinguish any change to how it is rendered in .odt.
Thanks for your attention to this issue, hopefully it won't be too long before fixes are available in Fedora repo.

TDuell: if we cherry-pick changes in 4.1, it could be for soon. But if not, you'll have to wait for 4.2.0, see release plan for future 4.2.0 (https://wiki.documentfoundation.org/ReleasePlan#4.2_release).

(In reply to comment #10)
> TDuell: if we cherry-pick changes in 4.1, it could be for soon. But if not,
> you'll have to wait for 4.2.0, see release plan for future 4.2.0
> (https://wiki.documentfoundation.org/ReleasePlan#4.2_release).

OK, I understand.
Given that this might affect quite a few collaborating on maths stuff with MS Word users, it would be good for LO credibility if the fixes were out there sooner than later.
Thanks for your help.

Michael: just in case Frédéric is in vacation, what do you think about a "cherry-pick package" containing Frédéric's changes about the math rendering for 4.1? (for 4.0 too?). If ok, I've got 4.1 and 4.0 sources and could do it then logerrit submit it.

(In reply to comment #8)
> Frédéric: the last screenshot I attached shows you greatly improved the
> rendering of math equation after doc conversion. For this case there are
> still small tweaks to do but I think it could be interesting to cherry-pick
> the changes you made in 4.1 sources, what do you think?

The main issue here seems to be the integration of formulas into the document: it seems that incorrect width/height attributes are saved when exported to .doc and then the formula is rendered distorsed when imported back. My work was really on the MathML export of the formula itself, so I'm not sure I fixed anything here. I only modified the XHTML export filter in bug 66645 to remove this kind of attributes and avoid confusing the rendering in browsers, but I'm don't know if this affects export to *.doc file.

I think someone mentioned a fix for baseline alignment of inline formulas on the mailing list, so perhaps the width/height have been fixed at the same time...

Frédéric: you were right, I cherry-picked the patches I quoted but it didn't change anything.
Sorry for the noise.

Why, that's a good old 

https://bugs.freedesktop.org/show_bug.cgi?id=45284

I'm successfully using locally built LibO with the patch mentioned there. Never needed absolute size in formulas, BTW.

Yuri: according to what you said, I put fdo#45284 in see also. Thank you for your feedback.

This problem was solved in the Fedora LO package (4.1.3.2-6), but has re-appeared in the 4.1.3.2-8 Fedora package.
How can this be?