On Apr 6, 2005 11:32 PM, David Reitter <[EMAIL PROTECTED]> wrote: > that I'd like to implement in order to conform to standards in my > environment, the vertical slider size shows a proportion of _ displayed > lines_ not document characters or real lines (those that end with a CR > or LF). Whether that is better or not, I don't know, but what I do know > is that a) "less visual change on the screen is more", and that b) both > Windows and Mac software has sliders with a stable size.
The only way I can see to truly have stable scroll-bar size is to base the size calculation on displayed pixels (lines are not necessarily a constant height, so the number of displayed lines is not a fixed proportion of total lines in the document). I'm curious how _any_ program manages to do this calculation in a reasonable amount of time; do they really lay-out the _entire_ document ahead of time? Do they use some sort of heuristic instead? What happens when the heuristic fails? -MIles -- Do not taunt Happy Fun Ball. _______________________________________________ Emacs-devel mailing list Emacs-devel@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-devel
