projects/guix·blob python-team · refs

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1;;; GNU Guix --- Functional package management for GNU
2;;; Copyright © 2018 Mathieu Othacehe <[email protected]>
3;;;
4;;; This file is part of GNU Guix.
5;;;
6;;; GNU Guix is free software; you can redistribute it and/or modify it
7;;; under the terms of the GNU General Public License as published by
8;;; the Free Software Foundation; either version 3 of the License, or (at
9;;; your option) any later version.
10;;;
11;;; GNU Guix is distributed in the hope that it will be useful, but
12;;; WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
18
19(define-module (gnu installer newt utils)
20 #:use-module (ice-9 receive)
21 #:use-module (newt)
22 #:export (screen-columns
23 screen-rows
24
25 destroy-form-and-pop
26 set-screen-size!))
27
28;; Number of columns and rows of the terminal.
29(define screen-columns (make-parameter 0))
30(define screen-rows (make-parameter 0))
31
32(define (destroy-form-and-pop form)
33 "Destroy the given FORM and pop the current window."
34 (destroy-form form)
35 (pop-window))
36
37(define (set-screen-size!)
38 "Set the parameters 'screen-columns' and 'screen-rows' to the number of
39columns and rows respectively of the current terminal."
40 (receive (columns rows)
41 (screen-size)
42 (screen-columns columns)
43 (screen-rows rows)))