Re: [Emacs-diffs] /srv/bzr/emacs/trunk r103444: * lisp/facemenu.el (list-colors-display): Use with-help-window (Bug#8048).

[martin rudalics]

> Couldn't you try adding more aliases until the gap between the color
> name on the left and the first alias in the middle is small enough?
> You could use current-column to measure the gap.  Would that work?

The current algorithm already does something along these lines.  It's
just that it has to know the width of the window first.

>> Maybe we could provide a display specificier, say "truncate", so we
>> could do something like
>>
>> (insert (propertize string 'display '(truncate (- text 9))))
>>
>> to assert that any such string never extends past the ninth column
>> before the end of the text area.
>
> But that's not what we want here.  We don't want to truncate, we want
> to insert text that fits without truncation.

If the text doesn't fit, we have to truncate anyway.  But if we were
able to adjust rigid text (that is, truncate-lines equals t text) during
redisplay we'd be able to selectively display more important parts of a
text when the window is narrow and the entire text when the window is
wide.  This would also allow to implement line numbers for rigid text.

martin