lisp/term/common-win.el

   1 ;;; common-win.el --- common part of handling window systems
   2
   3 ;; Copyright (C) 1993, 1994, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   4 ;;   2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   5
   6 ;; Maintainer: FSF
   7 ;; Keywords: terminals
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28
  29 (defvar x-invocation-args)
  30
  31 (defvar x-command-line-resources nil)
  32
  33 ;; Handler for switches of the form "-switch value" or "-switch".
  34 (defun x-handle-switch (switch)
  35   (let ((aelt (assoc switch command-line-x-option-alist)))
  36     (if aelt
  37         (let ((param (nth 3 aelt))
  38               (value (nth 4 aelt)))
  39           (if value
  40               (setq default-frame-alist
  41                     (cons (cons param value)
  42                           default-frame-alist))
  43             (setq default-frame-alist
  44                   (cons (cons param
  45                               (car x-invocation-args))
  46                         default-frame-alist)
  47                   x-invocation-args (cdr x-invocation-args)))))))
  48
  49 ;; Handler for switches of the form "-switch n"
  50 (defun x-handle-numeric-switch (switch)
  51   (let ((aelt (assoc switch command-line-x-option-alist)))
  52     (if aelt
  53         (let ((param (nth 3 aelt)))
  54           (setq default-frame-alist
  55                 (cons (cons param
  56                             (string-to-number (car x-invocation-args)))
  57                       default-frame-alist)
  58                 x-invocation-args
  59                 (cdr x-invocation-args))))))
  60
  61 ;; Handle options that apply to initial frame only
  62 (defun x-handle-initial-switch (switch)
  63   (let ((aelt (assoc switch command-line-x-option-alist)))
  64     (if aelt
  65         (let ((param (nth 3 aelt))
  66               (value (nth 4 aelt)))
  67           (if value
  68               (setq initial-frame-alist
  69                     (cons (cons param value)
  70                           initial-frame-alist))
  71             (setq initial-frame-alist
  72                   (cons (cons param
  73                               (car x-invocation-args))
  74                         initial-frame-alist)
  75                   x-invocation-args (cdr x-invocation-args)))))))
  76
  77 ;; Make -iconic apply only to the initial frame!
  78 (defun x-handle-iconic (switch)
  79   (setq initial-frame-alist
  80         (cons '(visibility . icon) initial-frame-alist)))
  81
  82 ;; Handle the -xrm option.
  83 (defun x-handle-xrm-switch (switch)
  84   (unless (consp x-invocation-args)
  85     (error "%s: missing argument to `%s' option" (invocation-name) switch))
  86   (setq x-command-line-resources
  87         (if (null x-command-line-resources)
  88             (car x-invocation-args)
  89           (concat x-command-line-resources "\n" (car x-invocation-args))))
  90   (setq x-invocation-args (cdr x-invocation-args)))
  91
  92 (declare-function x-parse-geometry "frame.c" (string))
  93
  94 ;; Handle the geometry option
  95 (defun x-handle-geometry (switch)
  96   (let* ((geo (x-parse-geometry (car x-invocation-args)))
  97          (left (assq 'left geo))
  98          (top (assq 'top geo))
  99          (height (assq 'height geo))
 100          (width (assq 'width geo)))
 101     (if (or height width)
 102         (setq default-frame-alist
 103               (append default-frame-alist
 104                       '((user-size . t))
 105                       (if height (list height))
 106                       (if width (list width)))
 107               initial-frame-alist
 108               (append initial-frame-alist
 109                       '((user-size . t))
 110                       (if height (list height))
 111                       (if width (list width)))))
 112     (if (or left top)
 113         (setq initial-frame-alist
 114               (append initial-frame-alist
 115                       '((user-position . t))
 116                       (if left (list left))
 117                       (if top (list top)))))
 118     (setq x-invocation-args (cdr x-invocation-args))))
 119
 120 (defvar x-resource-name)
 121
 122 ;; Handle the -name option.  Set the variable x-resource-name
 123 ;; to the option's operand; set the name of
 124 ;; the initial frame, too.
 125 (defun x-handle-name-switch (switch)
 126   (or (consp x-invocation-args)
 127       (error "%s: missing argument to `%s' option" (invocation-name) switch))
 128   (setq x-resource-name (car x-invocation-args)
 129         x-invocation-args (cdr x-invocation-args))
 130   (setq initial-frame-alist (cons (cons 'name x-resource-name)
 131                                   initial-frame-alist)))
 132
 133 (defvar x-display-name nil
 134   "The name of the window display on which Emacs was started.
 135 On X, the display name of individual X frames is recorded in the
 136 `display' frame parameter.")
 137
 138 (defun x-handle-display (switch)
 139   "Handle -display DISPLAY option."
 140   (setq x-display-name (car x-invocation-args)
 141         x-invocation-args (cdr x-invocation-args))
 142   ;; Make subshell programs see the same DISPLAY value Emacs really uses.
 143   ;; Note that this isn't completely correct, since Emacs can use
 144   ;; multiple displays.  However, there is no way to tell an already
 145   ;; running subshell which display the user is currently typing on.
 146   (setenv "DISPLAY" x-display-name))
 147
 148 (defun x-handle-args (args)
 149   "Process the X-related command line options in ARGS.
 150 This is done before the user's startup file is loaded.  They are copied to
 151 `x-invocation-args', from which the X-related things are extracted, first
 152 the switch (e.g., \"-fg\") in the following code, and possible values
 153 \(e.g., \"black\") in the option handler code (e.g., x-handle-switch).
 154 This function returns ARGS minus the arguments that have been processed."
 155   ;; We use ARGS to accumulate the args that we don't handle here, to return.
 156   (setq x-invocation-args args
 157         args nil)
 158   (while (and x-invocation-args
 159               (not (equal (car x-invocation-args) "--")))
 160     (let* ((this-switch (car x-invocation-args))
 161            (orig-this-switch this-switch)
 162            completion argval aelt handler)
 163       (setq x-invocation-args (cdr x-invocation-args))
 164       ;; Check for long options with attached arguments
 165       ;; and separate out the attached option argument into argval.
 166       (if (string-match "^--[^=]*=" this-switch)
 167           (setq argval (substring this-switch (match-end 0))
 168                 this-switch (substring this-switch 0 (1- (match-end 0)))))
 169       ;; Complete names of long options.
 170       (if (string-match "^--" this-switch)
 171           (progn
 172             (setq completion (try-completion this-switch command-line-x-option-alist))
 173             (if (eq completion t)
 174                 ;; Exact match for long option.
 175                 nil
 176               (if (stringp completion)
 177                   (let ((elt (assoc completion command-line-x-option-alist)))
 178                     ;; Check for abbreviated long option.
 179                     (or elt
 180                         (error "Option `%s' is ambiguous" this-switch))
 181                     (setq this-switch completion))))))
 182       (setq aelt (assoc this-switch command-line-x-option-alist))
 183       (if aelt (setq handler (nth 2 aelt)))
 184       (if handler
 185           (if argval
 186               (let ((x-invocation-args
 187                      (cons argval x-invocation-args)))
 188                 (funcall handler this-switch))
 189             (funcall handler this-switch))
 190         (setq args (cons orig-this-switch args)))))
 191   (nconc (nreverse args) x-invocation-args))
 192
 193 \f
 194 ;;
 195 ;; Available colors
 196 ;;
 197 ;; The ordering of the colors is chosen for the user's convenience in
 198 ;; `list-colors-display', which displays the reverse of this list.
 199 ;; Roughly speaking, `list-colors-display' orders by (i) named shades
 200 ;; of grey with hue 0.0, sorted by value (ii) named colors with
 201 ;; saturation 1.0, sorted by hue, (iii) named non-white colors with
 202 ;; saturation less than 1.0, sorted by hue, (iv) other named shades of
 203 ;; white, (v) numbered colors sorted by hue, and (vi) numbered shades
 204 ;; of grey.
 205
 206 (defvar x-colors
 207   (purecopy
 208    '("gray100" "gray99" "gray98" "gray97" "gray96" "gray95" "gray94" "gray93" "gray92"
 209     "gray91" "gray90" "gray89" "gray88" "gray87" "gray86" "gray85" "gray84" "gray83"
 210     "gray82" "gray81" "gray80" "gray79" "gray78" "gray77" "gray76" "gray75" "gray74"
 211     "gray73" "gray72" "gray71" "gray70" "gray69" "gray68" "gray67" "gray66" "gray65"
 212     "gray64" "gray63" "gray62" "gray61" "gray60" "gray59" "gray58" "gray57" "gray56"
 213     "gray55" "gray54" "gray53" "gray52" "gray51" "gray50" "gray49" "gray48" "gray47"
 214     "gray46" "gray45" "gray44" "gray43" "gray42" "gray41" "gray40" "gray39" "gray38"
 215     "gray37" "gray36" "gray35" "gray34" "gray33" "gray32" "gray31" "gray30" "gray29"
 216     "gray28" "gray27" "gray26" "gray25" "gray24" "gray23" "gray22" "gray21" "gray20"
 217     "gray19" "gray18" "gray17" "gray16" "gray15" "gray14" "gray13" "gray12" "gray11"
 218     "gray10" "gray9" "gray8" "gray7" "gray6" "gray5" "gray4" "gray3" "gray2" "gray1"
 219     "gray0" "LightPink1" "LightPink2" "LightPink3" "LightPink4" "pink1" "pink2" "pink3"
 220     "pink4" "PaleVioletRed1" "PaleVioletRed2" "PaleVioletRed3" "PaleVioletRed4"
 221     "LavenderBlush1" "LavenderBlush2" "LavenderBlush3" "LavenderBlush4" "VioletRed1"
 222     "VioletRed2" "VioletRed3" "VioletRed4" "HotPink1" "HotPink2" "HotPink3" "HotPink4"
 223     "DeepPink1" "DeepPink2" "DeepPink3" "DeepPink4" "maroon1" "maroon2" "maroon3"
 224     "maroon4" "orchid1" "orchid2" "orchid3" "orchid4" "plum1" "plum2" "plum3" "plum4"
 225     "thistle1" "thistle2" "thistle3" "thistle4" "MediumOrchid1" "MediumOrchid2"
 226     "MediumOrchid3" "MediumOrchid4" "DarkOrchid1" "DarkOrchid2" "DarkOrchid3"
 227     "DarkOrchid4" "purple1" "purple2" "purple3" "purple4" "MediumPurple1"
 228     "MediumPurple2" "MediumPurple3" "MediumPurple4" "SlateBlue1" "SlateBlue2"
 229     "SlateBlue3" "SlateBlue4" "RoyalBlue1" "RoyalBlue2" "RoyalBlue3" "RoyalBlue4"
 230     "LightSteelBlue1" "LightSteelBlue2" "LightSteelBlue3" "LightSteelBlue4" "SlateGray1"
 231     "SlateGray2" "SlateGray3" "SlateGray4" "DodgerBlue1" "DodgerBlue2" "DodgerBlue3"
 232     "DodgerBlue4" "SteelBlue1" "SteelBlue2" "SteelBlue3" "SteelBlue4" "SkyBlue1"
 233     "SkyBlue2" "SkyBlue3" "SkyBlue4" "LightSkyBlue1" "LightSkyBlue2" "LightSkyBlue3"
 234     "LightSkyBlue4" "LightBlue1" "LightBlue2" "LightBlue3" "LightBlue4" "CadetBlue1"
 235     "CadetBlue2" "CadetBlue3" "CadetBlue4" "azure1" "azure2" "azure3" "azure4"
 236     "LightCyan1" "LightCyan2" "LightCyan3" "LightCyan4" "PaleTurquoise1"
 237     "PaleTurquoise2" "PaleTurquoise3" "PaleTurquoise4" "DarkSlateGray1" "DarkSlateGray2"
 238     "DarkSlateGray3" "DarkSlateGray4" "aquamarine1" "aquamarine2" "aquamarine3"
 239     "aquamarine4" "SeaGreen1" "SeaGreen2" "SeaGreen3" "SeaGreen4" "honeydew1"
 240     "honeydew2" "honeydew3" "honeydew4" "DarkSeaGreen1" "DarkSeaGreen2" "DarkSeaGreen3"
 241     "DarkSeaGreen4" "PaleGreen1" "PaleGreen2" "PaleGreen3" "PaleGreen4"
 242     "DarkOliveGreen1" "DarkOliveGreen2" "DarkOliveGreen3" "DarkOliveGreen4" "OliveDrab1"
 243     "OliveDrab2" "OliveDrab3" "OliveDrab4" "ivory1" "ivory2" "ivory3" "ivory4"
 244     "LightYellow1" "LightYellow2" "LightYellow3" "LightYellow4" "khaki1" "khaki2"
 245     "khaki3" "khaki4" "LemonChiffon1" "LemonChiffon2" "LemonChiffon3" "LemonChiffon4"
 246     "LightGoldenrod1" "LightGoldenrod2" "LightGoldenrod3" "LightGoldenrod4" "cornsilk1"
 247     "cornsilk2" "cornsilk3" "cornsilk4" "goldenrod1" "goldenrod2" "goldenrod3"
 248     "goldenrod4" "DarkGoldenrod1" "DarkGoldenrod2" "DarkGoldenrod3" "DarkGoldenrod4"
 249     "wheat1" "wheat2" "wheat3" "wheat4" "NavajoWhite1" "NavajoWhite2" "NavajoWhite3"
 250     "NavajoWhite4" "burlywood1" "burlywood2" "burlywood3" "burlywood4" "AntiqueWhite1"
 251     "AntiqueWhite2" "AntiqueWhite3" "AntiqueWhite4" "bisque1" "bisque2" "bisque3"
 252     "bisque4" "tan1" "tan2" "tan3" "tan4" "PeachPuff1" "PeachPuff2" "PeachPuff3"
 253     "PeachPuff4" "seashell1" "seashell2" "seashell3" "seashell4" "chocolate1"
 254     "chocolate2" "chocolate3" "chocolate4" "sienna1" "sienna2" "sienna3" "sienna4"
 255     "LightSalmon1" "LightSalmon2" "LightSalmon3" "LightSalmon4" "salmon1" "salmon2"
 256     "salmon3" "salmon4" "coral1" "coral2" "coral3" "coral4" "tomato1" "tomato2"
 257     "tomato3" "tomato4" "MistyRose1" "MistyRose2" "MistyRose3" "MistyRose4" "snow1"
 258     "snow2" "snow3" "snow4" "RosyBrown1" "RosyBrown2" "RosyBrown3" "RosyBrown4"
 259     "IndianRed1" "IndianRed2" "IndianRed3" "IndianRed4" "firebrick1" "firebrick2"
 260     "firebrick3" "firebrick4" "brown1" "brown2" "brown3" "brown4" "magenta1" "magenta2"
 261     "magenta3" "magenta4" "blue1" "blue2" "blue3" "blue4" "DeepSkyBlue1" "DeepSkyBlue2"
 262     "DeepSkyBlue3" "DeepSkyBlue4" "turquoise1" "turquoise2" "turquoise3" "turquoise4"
 263     "cyan1" "cyan2" "cyan3" "cyan4" "SpringGreen1" "SpringGreen2" "SpringGreen3"
 264     "SpringGreen4" "green1" "green2" "green3" "green4" "chartreuse1" "chartreuse2"
 265     "chartreuse3" "chartreuse4" "yellow1" "yellow2" "yellow3" "yellow4" "gold1" "gold2"
 266     "gold3" "gold4" "orange1" "orange2" "orange3" "orange4" "DarkOrange1" "DarkOrange2"
 267     "DarkOrange3" "DarkOrange4" "OrangeRed1" "OrangeRed2" "OrangeRed3" "OrangeRed4"
 268     "red1" "red2" "red3" "red4" "lavender blush" "ghost white" "lavender" "alice blue"
 269     "azure" "light cyan" "mint cream" "honeydew" "ivory" "light goldenrod yellow"
 270     "light yellow" "beige" "floral white" "old lace" "blanched almond" "moccasin"
 271     "papaya whip" "bisque" "antique white" "linen" "peach puff" "seashell" "misty rose"
 272     "snow" "light pink" "pink" "hot pink" "deep pink" "maroon" "pale violet red"
 273     "violet red" "medium violet red" "violet" "plum" "thistle" "orchid" "medium orchid"
 274     "dark orchid" "purple" "blue violet" "medium purple" "light slate blue"
 275     "medium slate blue" "slate blue" "dark slate blue" "midnight blue" "navy"
 276     "dark blue" "light steel blue" "cornflower blue" "dodger blue" "royal blue"
 277     "light slate gray" "slate gray" "dark slate gray" "steel blue" "cadet blue"
 278     "light sky blue" "sky blue" "light blue" "powder blue" "pale turquoise"
 279     "turquoise" "medium turquoise" "dark turquoise"  "dark cyan" "aquamarine"
 280     "medium aquamarine" "light sea green"
 281     "medium sea green" "sea green" "dark sea green" "pale green" "lime green"
 282     "dark green" "forest green" "light green" "green yellow" "yellow green" "olive drab"
 283     "dark olive green" "lemon chiffon" "khaki" "dark khaki" "cornsilk"
 284     "pale goldenrod" "light goldenrod" "goldenrod" "dark goldenrod" "wheat"
 285     "navajo white" "tan" "burlywood" "sandy brown" "peru" "chocolate" "saddle brown"
 286     "sienna" "rosy brown" "dark salmon" "coral" "tomato" "light salmon" "salmon"
 287     "light coral" "indian red" "firebrick" "brown" "dark red" "magenta"
 288     "dark magenta" "dark violet" "medium blue" "blue" "deep sky blue"
 289     "cyan" "medium spring green" "spring green" "green" "lawn green" "chartreuse"
 290     "yellow" "gold" "orange" "dark orange" "orange red" "red" "white" "white smoke"
 291     "gainsboro" "light gray" "gray" "dark gray" "dim gray" "black" ))
 292   "List of basic colors available on color displays.
 293 For X, the list comes from the `rgb.txt' file,v 10.41 94/02/20.
 294 For Nextstep, this is a list of non-PANTONE colors returned by
 295 the operating system.")
 296
 297 ;; arch-tag: 2a128601-99cc-401e-9dff-0ee6a36102ef
 298 ;;; common-win.el ends here