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bug#12811: 24.3.50; `scroll-up/down-aggressively' don't seem to work as


From: Dani Moncayo
Subject: bug#12811: 24.3.50; `scroll-up/down-aggressively' don't seem to work as expected
Date: Sun, 11 Nov 2012 18:28:22 +0100

>> > Emacs doesn't count in lines, it counts in pixels.  And since a line
>> > has a finite size, where exactly those 70% end is not well determined
>> > (is it the top of the line, the bottom of the line, somewhere in
>> > between?).
>>
>> I don't see the point of using pixel as unit of measure here.  The
>> unit should be the line, because the problem to solve here can
>> (should) be expressed in terms of lines; going down to the pixel level
>> is unnecessary and confusing, IMO.
>
> You forget about variable fonts.  One line can be very large, another
> very small.  Scrolling must still do something reasonable with them.

Yes, I forgot that.  In that case we have to go down to the pixel level, indeed.

Thank you.

-- 
Dani Moncayo





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