Short capi:editor-pane

Hello lispworkers,

Assume that some external constraints force the editor pane be shorter than
the font height.

(capi:contain (make-instance 'capi:editor-pane
        :visible-min-height nil
        :visible-max-height 8
        :text "abcd"
        :vertical-scroll nil))

This results in a pane having no visible clue about whether it contains any
text or not. For the user having unpredictable font settings on his
computer, that could look rather misleading. IMHO, displaying letters cut in
height rather than nothing would much better way.

Any takers? Which of the editor source files shall I look at to fix?
--
Sincerely,
Dmitriy Ivanov
lisp.ystok.ru