blob: 509365bf4a4174186cb5a6c239b0028a1abcf273 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
;;; vt-control.el --- Common VTxxx control functions
;; Copyright (C) 1993 Free Software Foundation, Inc.
;; Author: Rob Riepel <riepel@networking.stanford.edu>
;; Maintainer: Rob Riepel <riepel@networking.stanford.edu>
;; Keywords: terminals
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
;;; Commentary:
;; The functions contained in this file send various VT control codes
;; to the terminal where emacs is running. The following functions are
;; available.
;; Function Action
;; vt-wide set wide screen (132 characters)
;; vt-narrow set narrow screen (80 characters)
;; vt-toggle-screen toggle wide/narrow screen
;; vt-keypad-on set applications keypad on
;; vt-keypad-off set applications keypad off
;; vt-numlock toggle applications keypad on/off
;;; Usage:
;; To use enable these functions, simply load this file.
;; Note: vt-control makes no effort to determine how the terminal is
;; initially set. It assumes the terminal starts with a width
;; of 80 characters and the applications keypad enabled. Nor
;; does vt-control try to restore the terminal when emacs is
;; killed or suspended.
;;; Code:
;;; Revision Information
(defconst vt-revision "$Revision: 1.3 $"
"Revision number of vt-control.")
;;; Global variables
(defvar vt-applications-keypad-p t
"If non-nil, keypad is in applications mode.")
(defvar vt-wide-p nil
"If non-nil, the screen is 132 characters wide.")
;;; Screen width functions.
(defun vt-wide nil
"Set the screen 132 characters wide."
(interactive)
(send-string-to-terminal "\e[?3h")
(set-screen-width 132)
(setq vt-wide-p t))
(defun vt-narrow nil
"Set the screen 80 characters wide."
(interactive)
(send-string-to-terminal "\e[?3l")
(set-screen-width 80)
(setq vt-wide-p nil))
(defun vt-toggle-screen nil
"Toggle between 80 and 132 character screen width."
(interactive)
(if vt-wide-p (vt-narrow) (vt-wide)))
;;; Applications keypad functions.
(defun vt-keypad-on (&optional tell)
"Turn on the VT applications keypad."
(interactive)
(send-string-to-terminal "\e[\e=")
(setq vt-applications-keypad-p t)
(if (or tell (interactive-p)) (message "Applications keypad enabled.")))
(defun vt-keypad-off (&optional tell)
"Turn off the VT applications keypad."
(interactive "p")
(send-string-to-terminal "\e[\e>")
(setq vt-applications-keypad-p nil)
(if (or tell (interactive-p)) (message "Applications keypad disabled.")))
(defun vt-numlock nil
"Toggle VT application keypad on and off."
(interactive)
(if vt-applications-keypad-p (vt-keypad-off (interactive-p))
(vt-keypad-on (interactive-p))))
;;; vt-control.el ends here
|
