[plt-dev] Scrolling of files with large snips

Oh, I know how to do it. Nevermind. (get the style list's standard
style and get its font's height)

Robby

On Thu, Nov 12, 2009 at 5:07 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> This is fixable with the current tools. It is, I believe, easy to say
> make scroll positions every 15 pixels (or some other fixed number).
> Less easy to make them at the height of the font generally in the
> buffer, tho. (Matthew: any hints?)
>
> Robby
>
> On Thu, Nov 12, 2009 at 5:02 PM, John Clements
> <clements at brinckerhoff.org> wrote:
>> It looks like DrScheme buffers manage scroll positions using the
>> line-at-the-top-of-the-screen.  This means that for large snips--those
>> taller than the window--there's no way to see the bottom half of the snip,
>> because there's no intermediate scroll position between
>> line-with-the-big-snip and (+ 1 line-with-the-big-snip).
>>
>> E.G.:  Evaluate this program:
>>
>> (require 2htdp/image)
>>
>> (circle 500 "solid" "yellow")
>>
>> On the Mac, for screens less than 1000 pixels tall, there appears to be no
>> way to inspect the bottom part of the circle.
>>
>> IIUC, this is not a bug but a change request.
>>
>> I guess the best question might be this:  is this the kind of thing that
>> might be fixed by the re-implementation of wx in scheme, or not?
>>
>> John
>>
>>
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>