How to have a buffer takes 1/4 of a window and another takes all the rest?

Question

I have two buffers, and would like one takes 1/4 of a window and other takes rest of the window.

Normal behavior would be for example sp or vsp would split buffer to take 50/50 percent each, there would be some buffers more important than others so that I raise this question.

In my case, I'd like to have a terminal buffer that takes 1/4 of a window and other takes the rest.

I used gvim 1-1802 on windows 10.

Many thanks.

Answer 1

You can use the &columns setting and some math to achieve this. Do you want to resize your existing splits, or make a new split at the right ratios? Since it's not entirely clear from your question, here's how you can do it both ways.

Resizing existing splits

I used this:

function! Quarter()
  exec "vertical resize ".(&columns / 4). " N"
endfunction

This will resize the existing buffer to a quarter of the screen size. Of course, you can map this to a key, for example:

nnoremap <leader>q :call Quarter()<cr>

or

nnoremap <leader>q :exec "vertical resize ".(&columns / 4). " N"<cr>

Or you can bind this function to the VimResized event.

Making new splits

You can do this:

:exec (&columns / 4)." vsplit"

to make the current window 1/4 and the new window fill up the rest, or

:exec (&columns / 4 * 3)." vsplit"

to make the new window 1/4 and the current window fill up the rest.