Re: __attribute__((packed)) for enum

On 19.05.2011 16:40, tora - Takamichi Akiyama wrote:
> As you pointed out, the installed font might be one of the factors.
> Excel files are prepared on Windows while I am trying to open them on
> CentOS and/or Solaris. Those systems have a different font set.
>
> Another point that I have been suspecting since OpenOffice.org 2.x is
> artificial "Ascendant." The vcl module had implemented a feature that
> mathematically produced an artificial "Ascendant" of glyph.
>
> Compared with typical Western font files which usually have certain
> amount of ascendant, typical Japanese font files have an ascendant of
> value zero from, probably, historical reasons.
>
> To make implementation of the upper layer applications such as Writer,
> Calc, and Impress, the underlying module, "vcl," tries to internally
> take care of the differences.
>
> It is good, but, I feel, the artificial ascendant, thus, virtual text
> height, might be slightly higher than its expectation. That might lead a
> cause to slightly increase unnecessary amount of row height.

There's been some tweaking of CJK font metrics in VCL, but I'm not 
really familiar with that.

> BTW, in contrast to the topic on "artificial ascendant," what I have
> been currently aiming at is that how to create an preview image of
> Microsoft Office files running on back-end servers without any user
> interaction.
>
> For the purpose, which might be better?
> (a) One spreadsheet is converted into a single too-small image file.
> (b) One spreadsheet is converted into two or four image files.
>
> Reducing a font size right before calling OutputDevice::SetFont seems to
> work. I am trying this attempt for a while.

If you want to shrink everything to make sure you don't generate too 
many pages, perhaps it's better to reduce the print scale 
(ATTR_PAGE_SCALE, or PageScale via API). That would apply to simple 
cells and EditEngine content equally.

Niklas
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