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Re: vertical-alignment test for 'super', 'sub' and 'middle'

From: Shiozawa, Hajime <hajime.shiozawa@gmail.com>
Date: Tue, 27 Oct 2015 23:00:31 +0900
Message-ID: <CAHSwuKPOWnCns2XFoV+G4fS-E2KoC9rxDb1iBk1LDJJh_p2Oag@mail.gmail.com>
To: Gérard Talbot <css21testsuite@gtalbot.org>
Cc: Public CSS test suite mailing list <public-css-testsuite@w3.org>, Koji Ishii <kojiishi@gluesoft.co.jp>
Hi Gérard,

I have confirmed your changes.
Thank you for your review and modification!

Hajime.


2015-10-26 15:29 GMT+09:00 Gérard Talbot <css21testsuite@gtalbot.org>:

> Le 2015-10-05 19:31, 塩澤 元 a écrit :
>
>> Gérard,
>>
>> I added new tests for 'super', 'sub' and 'middle' only with vertical-rl.
>>
>> https://hg.csswg.org/test/rev/95f0abe8675c
>> https://hg.csswg.org/test/rev/cf03cc72af13 (renamed file)
>>
>> - vertical-alignment-vrl-010.xht:  vertical-rl + mixed + super
>> - vertical-alignment-vrl-012.xht:  vertical-rl + upright + super
>> - vertical-alignment-vrl-014.xht:  vertical-rl + sideways + super
>> - vertical-alignment-vrl-016.xht:  vertical-rl + mixed + sub
>> - vertical-alignment-vrl-018.xht:  vertical-rl + upright + sub
>> - vertical-alignment-vrl-020.xht:  vertical-rl + sideways + sub
>> - vertical-alignment-vrl-022.xht:  vertical-rl + mixed + middle
>> - vertical-alignment-vrl-024.xht:  vertical-rl + upright + middle
>> - vertical-alignment-vrl-026.xht:  vertical-rl + sideways + middle
>>
>
> Hajime,
>
> Sorry for the long delay. Since you waited a long time, I have made some
> modifications to your tests and then approved them all, so that you would
> not have to resubmit changes for an additional review and approval.
>
> http://hg.csswg.org/test/rev/7d569978b1dd
>
> Modifications I did:
>
> When vertical-align - 'super' is tested, I changed the characters to X and
> 2 (differentiable characters) so that when/if the Ahem font is disabled,
> then we should see how X² looks like... even though in real algebraic
> context, the exponent is smaller.
>
> When vertical-align - 'sub' is tested, I changed the characters to O and 2
> (differentiable characters; chemical formula of oxygen) so that when/if the
> Ahem font is disabled, then we should see how O2 looks like... even though
> in a real chemistry/chemical context, the subscript is smaller.
>
> I did not change the characters for vertical-align - 'middle' because, for
> normal fonts, the x-height is usually around 0.45em to 0.50em ... and we
> would not be able to visually compare, say, character "x" with character
> "e" anyway because you carefully chose font sizes for an x-height of 0.8em.
>
> One error I fixed: "central" was changed for "alphabetic" in the text
> assert of vertical-alignment-vrl-026.xht .
>
> ** About test for 'middle'
>> I created a explanation images.
>>
>> - verticalAlignMiddleWithAlphabeticalBaseline.png
>> - veritcalAlingMiddleWithCentralBaseline.png
>>
>
>
> Those explanation images are excellent, Hajime; we probably should keep
> them.
>
>
> I created the tests for 'vertical-align: middle' based on an assumption
>> that a x-height of Ahem font is 0.8em.
>>
>
> Yes.
>
> "
> The font has an x-height of 0.8em.
> "
> http://www.w3.org/Style/CSS/Test/Fonts/Ahem/
>
> The x-height of 0.8em does not change when/even if the dominant baseline
> changes... which seems odd when the dominant baseline is central...
>
>
> Gérard
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-- 
# 塩澤 元 (Shiozawa, Hajime)
# mail: hajime.shiozawa@gmail.com
Received on Tuesday, 27 October 2015 14:01:02 UTC

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