lisp/term/rxvt.el

   1 ;;; rxvt.el --- define function key sequences and standard colors for rxvt
   2
   3 ;; Copyright (C) 2002 Free Software Foundation, Inc.
   4
   5 ;; Author: Eli Zaretskii
   6 ;; Keywords: terminals
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;;; Code:
  28
  29 (require 'server)
  30
  31 (defvar rxvt-function-map (make-sparse-keymap)
  32   "Function key rxvt-function-mapoverrides for rxvt.")
  33
  34 ;; Set up function-key-map entries that termcap and terminfo don't know.
  35 ;; XXX We need to find a way to have these define-keys be display-local. -- Lorentey
  36 (define-key rxvt-function-map "\e[A" [up])
  37 (define-key rxvt-function-map "\e[B" [down])
  38 (define-key rxvt-function-map "\e[C" [right])
  39 (define-key rxvt-function-map "\e[D" [left])
  40 (define-key rxvt-function-map "\e[7~" [home])
  41 (define-key rxvt-function-map "\e[2~" [insert])
  42 (define-key rxvt-function-map "\e[3~" [delete])
  43 (define-key rxvt-function-map "\e[4~" [select])
  44 (define-key rxvt-function-map "\e[5~" [prior])
  45 (define-key rxvt-function-map "\e[6~" [next])
  46 (define-key rxvt-function-map "\e[11~" [f1])
  47 (define-key rxvt-function-map "\e[12~" [f2])
  48 (define-key rxvt-function-map "\e[13~" [f3])
  49 (define-key rxvt-function-map "\e[14~" [f4])
  50 (define-key rxvt-function-map "\e[15~" [f5])
  51 (define-key rxvt-function-map "\e[17~" [f6])
  52 (define-key rxvt-function-map "\e[18~" [f7])
  53 (define-key rxvt-function-map "\e[19~" [f8])
  54 (define-key rxvt-function-map "\e[20~" [f9])
  55 (define-key rxvt-function-map "\e[21~" [f10])
  56 (define-key rxvt-function-map "\e[23~" [f11])
  57 (define-key rxvt-function-map "\e[24~" [f12])
  58 (define-key rxvt-function-map "\e[29~" [print])
  59
  60 (define-key rxvt-function-map "\e[11^" [C-f1])
  61 (define-key rxvt-function-map "\e[12^" [C-f2])
  62 (define-key rxvt-function-map "\e[13^" [C-f3])
  63 (define-key rxvt-function-map "\e[14^" [C-f4])
  64 (define-key rxvt-function-map "\e[15^" [C-f5])
  65 (define-key rxvt-function-map "\e[17^" [C-f6])
  66 (define-key rxvt-function-map "\e[18^" [C-f7])
  67 (define-key rxvt-function-map "\e[19^" [C-f8])
  68 (define-key rxvt-function-map "\e[20^" [C-f9])
  69 (define-key rxvt-function-map "\e[21^" [C-f10])
  70 (define-key rxvt-function-map "\e[23^" [C-f11])
  71 (define-key rxvt-function-map "\e[24^" [C-f12])
  72
  73 (define-key rxvt-function-map "\e[29~" [print])
  74
  75 (define-key rxvt-function-map "\e[2;2~" [S-insert])
  76 (define-key rxvt-function-map "\e[3$" [S-delete])
  77
  78 (define-key rxvt-function-map "\e[2^" [C-insert])
  79 (define-key rxvt-function-map "\e[3^" [C-delete])
  80 (define-key rxvt-function-map "\e[5^" [C-prior])
  81 (define-key rxvt-function-map "\e[6^" [C-next])
  82 (define-key rxvt-function-map "\eOd" [C-left])
  83 (define-key rxvt-function-map "\eOc" [C-right])
  84 (define-key rxvt-function-map "\eOa" [C-up])
  85 (define-key rxvt-function-map "\eOb" [C-down])
  86
  87 (define-key rxvt-function-map "\e[5$" [S-prior])
  88 (define-key rxvt-function-map "\e[6$" [S-next])
  89 (define-key rxvt-function-map "\e[8$" [S-end])
  90 (define-key rxvt-function-map "\e[7$" [S-home])
  91 (define-key rxvt-function-map "\e[d" [S-left])
  92 (define-key rxvt-function-map "\e[c" [S-right])
  93 (define-key rxvt-function-map "\e[a" [S-up])
  94 (define-key rxvt-function-map "\e[b" [S-down])
  95
  96 ;; Use inheritance to let the main keymap override those defaults.
  97 ;; This way we don't override terminfo-derived settings or settings
  98 ;; made in the .emacs file.
  99 (unless (let ((map (keymap-parent function-key-map))
 100               found)
 101           (while (and (not found) map)
 102             (setq found (eq rxvt-function-map map)
 103                   map (keymap-parent map)))
 104           found)
 105   (set-keymap-parent rxvt-function-map (keymap-parent function-key-map))
 106   (set-keymap-parent function-key-map rxvt-function-map))
 107
 108
 109 ;; Set up colors, for those versions of rxvt that support it.
 110 (defvar rxvt-standard-colors
 111   ;; The names of the colors in the comments taken from the rxvt.1 man
 112   ;; page; the corresponding RGB values--from rgb.txt.
 113   '(("black"          0 (  0   0   0))  ; black
 114     ("red"            1 (205   0   0))  ; red3
 115     ("green"          2 (  0 205   0))  ; green3
 116     ("yellow"         3 (205 205   0))  ; yellow3
 117     ("blue"           4 (  0   0 205))  ; blue3
 118     ("magenta"        5 (205   0 205))  ; magenta3
 119     ("cyan"           6 (  0 205 205))  ; cyan3
 120     ("white"          7 (250 235 215))  ; AntiqueWhite
 121     ("brightblack"    8 ( 64  64  64))  ; gray25
 122     ("brightred"      9 (255   0   0))  ; red
 123     ("brightgreen"   10 (  0 255   0))  ; green
 124     ("brightyellow"  11 (255 255   0))  ; yellow
 125     ("brightblue"    12 (  0   0 255))  ; blue
 126     ("brightmagenta" 13 (255   0 255))  ; magenta
 127     ("brightcyan"    14 (  0 255 255))  ; cyan
 128     ("brightwhite"   15 (255 255 255))) ; white
 129   "Names of 16 standard rxvt colors, their numbers, and RGB values.")
 130
 131 (defun rxvt-rgb-convert-to-16bit (prim)
 132   "Convert an 8-bit primary color value PRIM to a corresponding 16-bit value."
 133   (min 65535 (round (* (/ prim 255.0) 65535.0))))
 134
 135 (defun rxvt-register-default-colors ()
 136   "Register the default set of colors for rxvt or compatible emulator.
 137
 138 This function registers the number of colors returned by `display-color-cells'
 139 for the currently selected frame."
 140   (let* ((ncolors (display-color-cells))
 141          (colors rxvt-standard-colors)
 142          (color (car colors)))
 143     (if (> ncolors 0)
 144         ;; Clear the 8 default tty colors registered by startup.el
 145         (tty-color-clear))
 146     ;; Only register as many colors as are supported by the display.
 147     (while (and (> ncolors 0) colors)
 148       (tty-color-define (car color) (cadr color)
 149                         (mapcar 'rxvt-rgb-convert-to-16bit
 150                                 (car (cddr color))))
 151       (setq colors (cdr colors)
 152             color (car colors)
 153             ncolors (1- ncolors)))
 154     ;; Modifying color mappings means realized faces don't use the
 155     ;; right colors, so clear them.
 156     (clear-face-cache)))
 157
 158 ;; rxvt puts the default colors into an environment variable
 159 ;; COLORFGBG.  We use this to set the background mode in a more
 160 ;; intelligent way than the default guesswork in startup.el.
 161 (defun rxvt-set-background-mode ()
 162   "Set background mode as appropriate for the default rxvt colors."
 163   (let ((fgbg (server-getenv "COLORFGBG"))
 164         bg rgb)
 165     (setq frame-background-mode 'light) ; default
 166     (when (and fgbg
 167                (string-match ".*;\\([0-9][0-9]?\\)\\'" fgbg))
 168       (setq bg (string-to-number (substring fgbg (match-beginning 1))))
 169       ;; The next line assumes that rxvt-standard-colors are ordered
 170       ;; by the color index in the ascending order!
 171       (setq rgb (car (cddr (nth bg rxvt-standard-colors))))
 172       ;; See the commentary in frame-set-background-mode about the
 173       ;; computation below.
 174       (if (< (apply '+ rgb)
 175              ;; The following line assumes that white is the 15th
 176              ;; color in rxvt-standard-colors.
 177              (* (apply '+ (car (cddr (nth 15 rxvt-standard-colors)))) 0.6))
 178           (setq frame-background-mode 'dark)))
 179     (frame-set-background-mode (selected-frame))))
 180
 181 ;; Do it!
 182 (rxvt-register-default-colors)
 183 (rxvt-set-background-mode)
 184 ;; This recomputes all the default faces given the colors we've just set up.
 185 (tty-set-up-initial-frame-faces)
 186
 187 ;;; arch-tag: 20cf2fb6-6318-4bab-9dbf-1d15048f2257
 188 ;;; rxvt.el ends here