[OS X Emacs] Aquamacs 2.3a problem with scroll bar and mouse interaction
vollmar at nf.mpg.de
Sat Aug 27 18:19:39 EDT 2011
thanks for taking a more detailed look at the problem - I think you narrowed it down quite a bit: I have not noticed the scroll problem before because it does not seem to affect text with "normal"-sized lines (the slider does, however, "wobble" in its size while being dragged along, which is a bit unusual). And, indeed, the important property of the text I suggested (C-h v load-path) is that it contains one line of unusual length - and it seems this is causing the problem (for a somewhat "pathological" example, admittedly).
On 27.08.2011, at 21:46, Jack Repenning wrote:
> On Aug 27, 2011, at 8:02 AM, Stefan Vollmar wrote:
>> if I left-click on the slider and move vertically while keeping the mouse button pressed ("dragging"), the slider does not move.
> In an "ordinary" file, where all lines fit on screen, I have no difficulties, however, if I use your test case:
>> C-h v load-path
> .... then, yes, I get something like what you describe. This seems to be because my load-path value is many screen lines (wrapped), even though it's a single text line (no interior newlines).
> More specifically, I can drag-scroll just fine to any of these positions:
> - line 1 of file is top of screen ("load-path is a variable ...")
> - line 2 of file is top of screen ("Its value is")
> - line 3 of file is top of screen ("("/Applications/Aquamacs.app/...")
> But I can't drag-scroll (though I can click-scroll) to such positions as
> - interior of line 3 is at top of screen ("Library/Preferences/Emacs" "/Library/Preferences/Aquamacs Emacs" ..)
> - line 4 of file is top of screen (blank)
> - line 5 of file is top of screen (blank)
> - line 6 of file is top of screen ("This variable is potentially risky ...")
> - and anything below this
> Jack Repenning
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Dr. Stefan Vollmar, Dipl.-Phys.
Head of IT group
Max-Planck-Institut für neurologische Forschung
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Tel.: +49-221-4726-213 FAX +49-221-4726-298
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Email: vollmar at nf.mpg.de http://www.nf.mpg.de
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