Re: Emacs 21 font issues and manual window manipulation.

[Kevin A. Burton]

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Eli Zaretskii <address@hidden> writes:
<snip>

> Similar (almost identical) feature exists already: see
> lisp/emacs-lisp/eldoc.el.  If you want to have the info pop in a tooltip,
> please consider extending eldoc.el and donating the diffs.

Ah yes.. I am aware.

I would like to have similar functionality but:

- - provide this for all major modes that enable it (initially this will be
  enabled for java and lisp).

- - use a tooltip so that your eyes don't have to look all the way to the bottom
  of the screen :)

> > This work in theory but there is no way for me to get an x-offset and
> > y-offset for the tooltip because Emacs doesn't provide any way for me to
> > find the x-offset and y-offset for the pointer.
> 
> I think you don't need to.  See the doc string of x-show-tip: it says that if
> tooltip-frame-parameters alist includes `left' and `top' parameters, these
> parameters determine where the tooltip is popped.

Yes... but where do I get the integer value for left and top?

This is how I am currently trying to set the tooltip but I have no reliable way
to get these values. 

> > This pattern seems to be in a lot of places.  AKA there is no way to set the
> > frame width based on pixels.  The only way to set the frame width is to use
> > characters.
> > 
> > Does this bother anyone else?  Am I missing something?
> 
> There are functions on the C level that convert between these two coordinate
> systems, but I don't see anything exported to Lisp.  Gerd, am I missing
> something?  If not, I guess no Lisp code needed to do these conversions until
> now.
> 
> Adding this would be a simple matter of providing a Lisp wrapper around
> glyph_to_pixel_coords, I think.

I assume that on *NIX systems this is defined in xterm.c?

This is frame-relative and x-show-tip is display relative.  I need to get the
x,y coords for the point WRT the display.

> > Is this fixed in GNU Emacsen later than 21.0.106.1?
> 
> Note that Emacs 21.1 was just released.

yes..  I need to review the docs but hopefully the API hasn't changed much in
one month :)
<snip>

Thanks.

BTW it is *REALLY* awesome to see this mailing list has been created :)

Kevin

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Kevin A. Burton address@hidden, address@hidden, address@hidden )
  Location: San Francisco, CA Cell: 415-595-9965 URL: http://relativity.yi.org 

Questions are the beginning of wisdom.
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