[Libreoffice-bugs] [Bug 136081] When Skia is enabled in vertical writing, changing the font scale changes the font size

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=136081

Ming Hua <ming.v.hua at qq.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |UNCONFIRMED
     Ever confirmed|1                           |0

--- Comment #8 from Ming Hua <ming.v.hua at qq.com> ---
(In reply to Luboš Luňák from comment #5)
> What exactly am I supposed to see? I don't know how read the text, and it's
> not even the same text for the 3 different sizes, so I don't know what to
> compare.
> Are either or both of these following screenshots correct?
Alas, I thought the difference is obvious to non-CJK users.  Sorry for not
explaining it better.

The usual Kanji/Hanzi character is a square-shaped glyph, i.e., the height and
width is the same.  And in the example file, when the "width" (in vertical
text, it refers to the vertical dimension) is scaled, the "height" (horizontal
dimension for vertical text) stays the same, and the characters are no longer
square-shaped, but looks like a rectangle.

So the expected behavior is: for 70% scaling, the vertical "width" is smaller
than the horizontal "height", and the characters are "short and wide"
rectangles; while for 140% scaling, the "width" is larger than "height", and
the characters are "tall and slim" rectangles.  Of course, for 100% scaling,
the characters are squares.  This is what's shown in attachment 164643.

The actual behavior, which we consider buggy, is that characters are shown as
squares in all three scalings.  It is as if the scaling in vertical "width" is
also applied to the horizontal "height".  This is what's shown in attachment
164642.

In your two screenshots characters are all squares, so neither of them is
correct.

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