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316 lines
11 KiB
EmacsLisp
316 lines
11 KiB
EmacsLisp
;;; rxvt.el --- define function key sequences and standard colors for rxvt
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;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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;; Author: Eli Zaretskii
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;; Keywords: terminals
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;;; Code:
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(defvar rxvt-function-map
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(let ((map (make-sparse-keymap)))
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;; Set up input-decode-map entries that termcap and terminfo don't know.
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(define-key map "\e[A" [up])
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(define-key map "\e[B" [down])
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(define-key map "\e[C" [right])
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(define-key map "\e[D" [left])
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(define-key map "\e[2~" [insert])
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(define-key map "\e[3~" [delete])
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(define-key map "\e[4~" [select])
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(define-key map "\e[5~" [prior])
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(define-key map "\e[6~" [next])
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(define-key map "\e[7~" [home])
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(define-key map "\e[8~" [end])
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(define-key map "\e[11~" [f1])
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(define-key map "\e[12~" [f2])
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(define-key map "\e[13~" [f3])
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(define-key map "\e[14~" [f4])
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(define-key map "\e[15~" [f5])
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(define-key map "\e[17~" [f6])
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(define-key map "\e[18~" [f7])
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(define-key map "\e[19~" [f8])
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(define-key map "\e[20~" [f9])
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(define-key map "\e[21~" [f10])
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;; The strings emitted by f11 and f12 are the same as the strings
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;; emitted by S-f1 and S-f2, so don't define f11 and f12.
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;; (define-key rxvt-function-map "\e[23~" [f11])
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;; (define-key rxvt-function-map "\e[24~" [f12])
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(define-key map "\e[29~" [print])
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(define-key map "\e[11^" [C-f1])
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(define-key map "\e[12^" [C-f2])
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(define-key map "\e[13^" [C-f3])
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(define-key map "\e[14^" [C-f4])
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(define-key map "\e[15^" [C-f5])
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(define-key map "\e[17^" [C-f6])
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(define-key map "\e[18^" [C-f7])
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(define-key map "\e[19^" [C-f8])
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(define-key map "\e[20^" [C-f9])
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(define-key map "\e[21^" [C-f10])
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(define-key map "\e[23~" [S-f1])
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(define-key map "\e[24~" [S-f2])
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(define-key map "\e[25~" [S-f3])
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(define-key map "\e[26~" [S-f4])
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(define-key map "\e[28~" [S-f5])
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(define-key map "\e[29~" [S-f6])
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(define-key map "\e[31~" [S-f7])
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(define-key map "\e[32~" [S-f8])
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(define-key map "\e[33~" [S-f9])
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(define-key map "\e[34~" [S-f10])
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(define-key map "\e[23^" [C-S-f1])
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(define-key map "\e[24^" [C-S-f2])
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(define-key map "\e[25^" [C-S-f3])
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(define-key map "\e[26^" [C-S-f4])
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(define-key map "\e[28^" [C-S-f5])
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(define-key map "\e[29^" [C-S-f6])
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(define-key map "\e[31^" [C-S-f7])
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(define-key map "\e[32^" [C-S-f8])
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(define-key map "\e[33^" [C-S-f9])
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(define-key map "\e[34^" [C-S-f10])
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(define-key map "\e[2^" [C-insert])
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(define-key map "\e[3^" [C-delete])
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(define-key map "\e[5^" [C-prior])
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(define-key map "\e[6^" [C-next])
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(define-key map "\e[7^" [C-home])
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(define-key map "\e[8^" [C-end])
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(define-key map "\eOd" [C-left])
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(define-key map "\eOc" [C-right])
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(define-key map "\eOa" [C-up])
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(define-key map "\eOb" [C-down])
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(define-key map "\e[2;2~" [S-insert])
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(define-key map "\e[3$" [S-delete])
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(define-key map "\e[5$" [S-prior])
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(define-key map "\e[6$" [S-next])
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(define-key map "\e[7$" [S-home])
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(define-key map "\e[8$" [S-end])
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(define-key map "\e[d" [S-left])
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(define-key map "\e[c" [S-right])
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(define-key map "\e[a" [S-up])
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(define-key map "\e[b" [S-down])
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map)
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"Function key overrides for rxvt.")
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(defvar rxvt-alternatives-map
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(let ((map (make-sparse-keymap)))
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;; The terminal intialization C code file might have initialized
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;; function keys F11->F42 from the termcap/terminfo information. On
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;; a PC-style keyboard these keys correspond to
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;; MODIFIER-FUNCTION_KEY, where modifier is S-, C-, C-S-. The
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;; code here subsitutes the corresponding defintions in
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;; function-key-map. This substitution is needed because if a key
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;; definition if found in function-key-map, there are no further
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;; lookups in other keymaps.
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(define-key map [f11] [S-f1])
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(define-key map [f12] [S-f2])
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(define-key map [f13] [S-f3])
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(define-key map [f14] [S-f4])
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(define-key map [f15] [S-f5])
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(define-key map [f16] [S-f6])
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(define-key map [f17] [S-f7])
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(define-key map [f18] [S-f8])
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(define-key map [f19] [S-f9])
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(define-key map [f20] [S-f10])
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(define-key map [f23] [C-f1])
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(define-key map [f24] [C-f2])
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(define-key map [f25] [C-f3])
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(define-key map [f26] [C-f4])
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(define-key map [f27] [C-f5])
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(define-key map [f28] [C-f6])
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(define-key map [f29] [C-f7])
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(define-key map [f30] [C-f8])
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(define-key map [f31] [C-f9])
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(define-key map [f32] [C-f10])
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(define-key map [f33] [C-S-f1])
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(define-key map [f34] [C-S-f2])
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(define-key map [f35] [C-S-f3])
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(define-key map [f36] [C-S-f4])
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(define-key map [f37] [C-S-f5])
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(define-key map [f38] [C-S-f6])
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(define-key map [f39] [C-S-f7])
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(define-key map [f40] [C-S-f8])
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(define-key map [f41] [C-S-f9])
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(define-key map [f42] [C-S-f10])
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map)
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"Keymap of possible alternative meanings for some keys.")
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(defun terminal-init-rxvt ()
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"Terminal initialization function for rxvt."
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(let ((map (copy-keymap rxvt-alternatives-map)))
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(set-keymap-parent map (keymap-parent local-function-key-map))
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(set-keymap-parent local-function-key-map map))
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;; Use inheritance to let the main keymap override those defaults.
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;; This way we don't override terminfo-derived settings or settings
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;; made in the .emacs file.
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(let ((m (copy-keymap rxvt-function-map)))
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(set-keymap-parent m (keymap-parent input-decode-map))
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(set-keymap-parent input-decode-map m))
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;; Initialize colors and background mode.
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(rxvt-register-default-colors)
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(rxvt-set-background-mode)
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;; This recomputes all the default faces given the colors we've just set up.
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(tty-set-up-initial-frame-faces))
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;; Set up colors, for those versions of rxvt that support it.
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(defvar rxvt-standard-colors
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;; The names of the colors in the comments taken from the rxvt.1 man
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;; page; the corresponding RGB values--from rgb.txt.
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'(("black" 0 ( 0 0 0)) ; black
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("red" 1 (205 0 0)) ; red3
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("green" 2 ( 0 205 0)) ; green3
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("yellow" 3 (205 205 0)) ; yellow3
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("blue" 4 ( 0 0 205)) ; blue3
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("magenta" 5 (205 0 205)) ; magenta3
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("cyan" 6 ( 0 205 205)) ; cyan3
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("white" 7 (229 229 229)) ; gray90
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("brightblack" 8 ( 77 77 77)) ; gray30
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("brightred" 9 (255 0 0)) ; red
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("brightgreen" 10 ( 0 255 0)) ; green
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("brightyellow" 11 (255 255 0)) ; yellow
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("brightblue" 12 ( 0 0 255)) ; blue
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("brightmagenta" 13 (255 0 255)) ; magenta
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("brightcyan" 14 ( 0 255 255)) ; cyan
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("brightwhite" 15 (255 255 255))) ; white
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"Names of 16 standard rxvt colors, their numbers, and RGB values.")
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(defun rxvt-rgb-convert-to-16bit (prim)
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"Convert an 8-bit primary color value PRIM to a corresponding 16-bit value."
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(min 65535 (round (* (/ prim 255.0) 65535.0))))
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(defun rxvt-register-default-colors ()
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"Register the default set of colors for rxvt or compatible emulator.
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This function registers the number of colors returned by `display-color-cells'
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for the currently selected frame."
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(let* ((ncolors (display-color-cells))
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(colors rxvt-standard-colors)
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(color (car colors)))
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(if (> ncolors 0)
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;; Clear the 8 default tty colors registered by startup.el
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(tty-color-clear))
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;; Only register as many colors as are supported by the display.
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(while (and (> ncolors 0) colors)
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(tty-color-define (car color) (cadr color)
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(mapcar 'rxvt-rgb-convert-to-16bit
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(car (cddr color))))
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(setq colors (cdr colors)
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color (car colors)
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ncolors (1- ncolors)))
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(when (> ncolors 0)
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(cond
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((= ncolors 240) ; 256-color rxvt
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;; 216 non-gray colors first
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(let ((r 0) (g 0) (b 0))
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(while (> ncolors 24)
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;; This and other formulae taken from 256colres.pl and
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;; 88colres.pl in the xterm distribution.
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(tty-color-define (format "color-%d" (- 256 ncolors))
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(- 256 ncolors)
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(mapcar 'rxvt-rgb-convert-to-16bit
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(list (round (* r 42.5))
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(round (* g 42.5))
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(round (* b 42.5)))))
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(setq b (1+ b))
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(if (> b 5)
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(setq g (1+ g)
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b 0))
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(if (> g 5)
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(setq r (1+ r)
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g 0))
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(setq ncolors (1- ncolors))))
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;; Now the 24 gray colors
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(while (> ncolors 0)
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(setq color (rxvt-rgb-convert-to-16bit (+ 8 (* (- 24 ncolors) 10))))
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(tty-color-define (format "color-%d" (- 256 ncolors))
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(- 256 ncolors)
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(list color color color))
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(setq ncolors (1- ncolors))))
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((= ncolors 72) ; rxvt-unicode
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;; 64 non-gray colors
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(let ((levels '(0 139 205 255))
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(r 0) (g 0) (b 0))
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(while (> ncolors 8)
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(tty-color-define (format "color-%d" (- 88 ncolors))
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(- 88 ncolors)
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(mapcar 'rxvt-rgb-convert-to-16bit
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(list (nth r levels)
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(nth g levels)
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(nth b levels))))
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(setq b (1+ b))
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(if (> b 3)
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(setq g (1+ g)
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b 0))
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(if (> g 3)
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(setq r (1+ r)
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g 0))
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(setq ncolors (1- ncolors))))
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;; Now the 8 gray colors
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(while (> ncolors 0)
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(setq color (rxvt-rgb-convert-to-16bit
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(floor
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(if (= ncolors 8)
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46.36363636
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(+ (* (- 8 ncolors) 23.18181818) 69.54545454)))))
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(tty-color-define (format "color-%d" (- 88 ncolors))
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(- 88 ncolors)
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(list color color color))
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(setq ncolors (1- ncolors))))
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(t (error "Unsupported number of rxvt colors (%d)" (+ 16 ncolors)))))
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;; Modifying color mappings means realized faces don't use the
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;; right colors, so clear them.
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(clear-face-cache)))
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;; rxvt puts the default colors into an environment variable
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;; COLORFGBG. We use this to set the background mode in a more
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;; intelligent way than the default guesswork in startup.el.
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(defun rxvt-set-background-mode ()
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"Set background mode as appropriate for the default rxvt colors."
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(let ((fgbg (getenv "COLORFGBG"))
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bg rgb)
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(set-terminal-parameter nil 'background-mode 'light)
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(when (and fgbg
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(string-match ".*;\\([0-9][0-9]?\\)\\'" fgbg))
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(setq bg (string-to-number (substring fgbg (match-beginning 1))))
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;; The next line assumes that rxvt-standard-colors are ordered
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;; by the color index in the ascending order!
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(setq rgb (car (cddr (nth bg rxvt-standard-colors))))
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;; See the commentary in frame-set-background-mode about the
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;; computation below.
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(if (< (apply '+ rgb)
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;; The following line assumes that white is the 15th
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;; color in rxvt-standard-colors.
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(* (apply '+ (car (cddr (nth 15 rxvt-standard-colors)))) 0.6))
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(set-terminal-parameter nil 'background-mode 'dark)))))
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;; arch-tag: 20cf2fb6-6318-4bab-9dbf-1d15048f2257
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;;; rxvt.el ends here
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