Re: problem of released-button style mode-line

[Gerd Moellmann]

Kenichi Handa <address@hidden> writes:

> I found a problem with the released-button style of
> mode-line (the currrent default).  In this style, mode-line
> gets 4-dot taller than normal lines in a window.  So, if I
> make a one line window just above the mode-line, it gets
> 6-dot shorter than normale lines (perhaps 4-dot eaten by the
> lower mode-line and 2-dot eaten by the lower part of the
> upper mode-line).
> 
> This happens always when a user activate a complex input
> method (e.g. japanese and chinese) in the minibuffer.  See
> the attached screen shot taken when I activated chinese-py
> in the minibuffer and typed `n'.
> 
> Is it possible to make one-line window at least has normal
> line height?

Not easily; it's a pending item for after 21.1.   

The problem is that frame and window sizes are currently counted in
lines and columns, i.e. multiples of the frame's fonts's height width.
I think this should be changed to allow arbitrary sizes on window
systems, but it certainly won't be easy to do.