Re: Changing height to fit window

[Heime]

------- Original Message -------
On Wednesday, November 30th, 2022 at 12:23 PM, Eli Zaretskii <eliz@gnu.org> 
wrote:


> > Date: Tue, 29 Nov 2022 20:37:03 +0000
> > From: Heime heimeborgia@protonmail.com
> > 
> > One can C-x C-+ and C-x C-- to call text-scale-adjust,
> > which increases or decreases the buffer text size, with
> > C-+ or C-- to repeat.
> > 
> > Instead of repeating, I want to have a function that adjusts
> > the scale so that the contents of the buffer fit the window,
> > based on the longest line. What can I do?
> 
> Ask Emacs about the pixel-height of the text, then compute the scale you
> need to make that the same as the pixel-height of the window's body.

Are you discussing line-pixel-height and window-pixel-height ?
 
> Caveat: when you change the font size, some lines could take more or fewer
> lines on the screen (due to wrapping) and disrupt your calculations.
> Dealing with that is left as an exercise.