19024 - Stretchy symbols

Status: RESOLVED FIXED

(Core :: MathML, defect, P3)

Description

[rbs]

This is to illustrate the newly added support for stretchy symbols in
the MathML engine.

Comment 1

[rbs]

Attachment: Screenshot - rendering of stretchy symbols

Comment 2

[Mike Shaver (:shaver emeritus)]

Attachment: stretchy rendering on Linux

Comment 3

[rbs]

Hmm, doesn't look alright on Linux. This may be an upshot of the
different character coordinate system as discussed in the MathML newsgroup.
I looked at the code of GetBoundingMetrics() in GTK and the sign of the
descent is not flipped.

I will assign the bug to Shyjan to test and see what happens
when the metrics data are returned in an homogeneous manner
(according to the character coordinate system that we agreed upon).
When you are done, you can re-assign the bug back to me.

Comment 4

[mahamud]

Attachment: nsFontMetrics.cpp descent bug fixed on linux

Comment 5

[mahamud]

Attachment: patch for descent bug in nsFontMetricsGTK.cpp

Comment 6

[rbs]

Marking as fixed

Comment 7

[Hixie (not reading bugmail)]

Rojer: How do I verify that this bug has been fixed?

Comment 8

[rbs]

Interesting question. Want to lobby for (periodic) MathML-enabled builds
from mozilla.org to ease testing? Want to add your weight on bug 24091?

Comment 9

[Hixie (not reading bugmail)]

On Windows there is no change big between the screenshot taken 11/16/99 and
yesterday's debug build. Do I take it the thick black blocks are another bug, 
or even intentional? Or should I file a separate bug for this? Or am I missing
some fonts?

I cannot verify this on Linux for now (my build env is Windows-only at the 
moment). Maybe next year......

Comment 10

[rbs]

thick black blocks -> missing fonts ...
http://www.mozilla.org/projects/mathml/fonts/

Comment 11

[Pulsebot]

Pushed by ffxbld-merge:
https://hg.mozilla.org/releases/mozilla-beta/rev/25956e6d907d
[fenix] Close https://github.com/mozilla-mobile/fenix/issues/19024: Fix intermittent test failure in NavigationInteractor