code.delx.au - gnu-emacs/blob - lisp/term/x-win.el

   1 ;;; x-win.el --- parse switches controlling interface with X window system
   2 ;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
   3
   4 ;; Author: FSF
   5 ;; Keywords: terminals
   6
   7 ;;; This file is part of GNU Emacs.
   8 ;;;
   9 ;;; GNU Emacs is free software; you can redistribute it and/or modify
  10 ;;; it under the terms of the GNU General Public License as published by
  11 ;;; the Free Software Foundation; either version 2, or (at your option)
  12 ;;; any later version.
  13 ;;;
  14 ;;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;;; GNU General Public License for more details.
  18 ;;;
  19 ;;; You should have received a copy of the GNU General Public License
  20 ;;; along with GNU Emacs; see the file COPYING.  If not, write to
  21 ;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  22
  23 ;;; Commentary:
  24
  25 ;; X-win.el:  this file is loaded from ../lisp/startup.el when it recognizes
  26 ;; that X windows are to be used.  Command line switches are parsed and those
  27 ;; pertaining to X are processed and removed from the command line.  The
  28 ;; X display is opened and hooks are set for popping up the initial window.
  29
  30 ;; startup.el will then examine startup files, and eventually call the hooks
  31 ;; which create the first window (s).
  32
  33 ;;; Code:
  34 \f
  35 ;; These are the standard X switches from the Xt Initialize.c file of
  36 ;; Release 4.
  37
  38 ;; Command line         Resource Manager string
  39
  40 ;; +rv                  *reverseVideo
  41 ;; +synchronous         *synchronous
  42 ;; -background          *background
  43 ;; -bd                  *borderColor
  44 ;; -bg                  *background
  45 ;; -bordercolor         *borderColor
  46 ;; -borderwidth         .borderWidth
  47 ;; -bw                  .borderWidth
  48 ;; -display             .display
  49 ;; -fg                  *foreground
  50 ;; -fn                  *font
  51 ;; -font                *font
  52 ;; -foreground          *foreground
  53 ;; -geometry            .geometry
  54 ;; -i                   .iconType
  55 ;; -itype               .iconType
  56 ;; -iconic              .iconic
  57 ;; -name                .name
  58 ;; -reverse             *reverseVideo
  59 ;; -rv                  *reverseVideo
  60 ;; -selectionTimeout    .selectionTimeout
  61 ;; -synchronous         *synchronous
  62 ;; -xrm
  63
  64 ;; An alist of X options and the function which handles them.  See
  65 ;; ../startup.el.
  66
  67 (if (not (eq window-system 'x))
  68     (error "%s: Loading x-win.el but not compiled for X" (invocation-name)))
  69
  70 (require 'frame)
  71 (require 'mouse)
  72 (require 'scroll-bar)
  73 (require 'faces)
  74 (require 'select)
  75 (require 'menu-bar)
  76
  77 (defvar x-invocation-args)
  78
  79 (defvar x-command-line-resources nil)
  80
  81 ;; Handler for switches of the form "-switch value" or "-switch".
  82 (defun x-handle-switch (switch)
  83   (let ((aelt (assoc switch command-line-x-option-alist)))
  84     (if aelt
  85         (let ((param (nth 3 aelt))
  86               (value (nth 4 aelt)))
  87           (if value
  88               (setq default-frame-alist
  89                     (cons (cons param value)
  90                           default-frame-alist))
  91             (setq default-frame-alist
  92                   (cons (cons param
  93                               (car x-invocation-args))
  94                         default-frame-alist)
  95                   x-invocation-args (cdr x-invocation-args)))))))
  96
  97 ;; Handler for switches of the form "-switch n"
  98 (defun x-handle-numeric-switch (switch)
  99   (let ((aelt (assoc switch command-line-x-option-alist)))
 100     (if aelt
 101         (let ((param (nth 3 aelt)))
 102           (setq default-frame-alist
 103                 (cons (cons param
 104                             (string-to-int (car x-invocation-args)))
 105                       default-frame-alist)
 106                 x-invocation-args
 107                 (cdr x-invocation-args))))))
 108
 109 ;; Make -iconic apply only to the initial frame!
 110 (defun x-handle-iconic (switch)
 111   (setq initial-frame-alist
 112         (cons '(visibility . icon) initial-frame-alist)))
 113
 114 ;; Handle the -xrm option.
 115 (defun x-handle-xrm-switch (switch)
 116   (or (consp x-invocation-args)
 117       (error "%s: missing argument to `%s' option" (invocation-name) switch))
 118   (setq x-command-line-resources (car x-invocation-args))
 119   (setq x-invocation-args (cdr x-invocation-args)))
 120
 121 ;; Handle the geometry option
 122 (defun x-handle-geometry (switch)
 123   (let ((geo (x-parse-geometry (car x-invocation-args))))
 124     (setq initial-frame-alist
 125           (append initial-frame-alist
 126                   (if (or (assq 'left geo) (assq 'top geo))
 127                       '((user-position . t)))
 128                   (if (or (assq 'height geo) (assq 'width geo))
 129                       '((user-size . t)))
 130                   geo)
 131           x-invocation-args (cdr x-invocation-args))))
 132
 133 ;; Handle the -name and -rn options.  Set the variable x-resource-name
 134 ;; to the option's operand; if the switch was `-name', set the name of
 135 ;; the initial frame, too.
 136 (defun x-handle-name-rn-switch (switch)
 137   (or (consp x-invocation-args)
 138       (error "%s: missing argument to `%s' option" (invocation-name) switch))
 139   (setq x-resource-name (car x-invocation-args)
 140         x-invocation-args (cdr x-invocation-args))
 141   (if (string= switch "-name")
 142       (setq initial-frame-alist (cons (cons 'name x-resource-name)
 143                                       initial-frame-alist))))
 144
 145 (defvar x-display-name nil
 146   "The X display name specifying server and X frame.")
 147
 148 (defun x-handle-display (switch)
 149   (setq x-display-name (car x-invocation-args)
 150         x-invocation-args (cdr x-invocation-args)))
 151
 152 (defun x-handle-args (args)
 153   "Process the X-related command line options in ARGS.
 154 This is done before the user's startup file is loaded.  They are copied to
 155 `x-invocation-args', from which the X-related things are extracted, first
 156 the switch (e.g., \"-fg\") in the following code, and possible values
 157 \(e.g., \"black\") in the option handler code (e.g., x-handle-switch).
 158 This function returns ARGS minus the arguments that have been processed."
 159   ;; We use ARGS to accumulate the args that we don't handle here, to return.
 160   (setq x-invocation-args args
 161         args nil)
 162   (while x-invocation-args
 163     (let* ((this-switch (car x-invocation-args))
 164            (orig-this-switch this-switch)
 165            completion argval aelt handler)
 166       (setq x-invocation-args (cdr x-invocation-args))
 167       ;; Check for long options with attached arguments
 168       ;; and separate out the attached option argument into argval.
 169       (if (string-match "^--[^=]*=" this-switch)
 170           (setq argval (substring this-switch (match-end 0))
 171                 this-switch (substring this-switch 0 (1- (match-end 0)))))
 172       ;; Complete names of long options.
 173       (if (string-match "^--" this-switch)
 174           (progn
 175             (setq completion (try-completion this-switch command-line-x-option-alist))
 176             (if (eq completion t)
 177                 ;; Exact match for long option.
 178                 nil
 179               (if (stringp completion)
 180                   (let ((elt (assoc completion command-line-x-option-alist)))
 181                     ;; Check for abbreviated long option.
 182                     (or elt
 183                         (error "Option `%s' is ambiguous" this-switch))
 184                     (setq this-switch completion))))))
 185       (setq aelt (assoc this-switch command-line-x-option-alist))
 186       (if aelt (setq handler (nth 2 aelt)))
 187       (if handler
 188           (if argval
 189               (let ((x-invocation-args
 190                      (cons argval x-invocation-args)))
 191                 (funcall handler this-switch))
 192             (funcall handler this-switch))
 193         (setq args (cons orig-this-switch args)))))
 194   (nreverse args))
 195 \f
 196 ;;
 197 ;; Standard X cursor shapes, courtesy of Mr. Fox, who wanted ALL of them.
 198 ;;
 199
 200 (defconst x-pointer-X-cursor 0)
 201 (defconst x-pointer-arrow 2)
 202 (defconst x-pointer-based-arrow-down 4)
 203 (defconst x-pointer-based-arrow-up 6)
 204 (defconst x-pointer-boat 8)
 205 (defconst x-pointer-bogosity 10)
 206 (defconst x-pointer-bottom-left-corner 12)
 207 (defconst x-pointer-bottom-right-corner 14)
 208 (defconst x-pointer-bottom-side 16)
 209 (defconst x-pointer-bottom-tee 18)
 210 (defconst x-pointer-box-spiral 20)
 211 (defconst x-pointer-center-ptr 22)
 212 (defconst x-pointer-circle 24)
 213 (defconst x-pointer-clock 26)
 214 (defconst x-pointer-coffee-mug 28)
 215 (defconst x-pointer-cross 30)
 216 (defconst x-pointer-cross-reverse 32)
 217 (defconst x-pointer-crosshair 34)
 218 (defconst x-pointer-diamond-cross 36)
 219 (defconst x-pointer-dot 38)
 220 (defconst x-pointer-dotbox 40)
 221 (defconst x-pointer-double-arrow 42)
 222 (defconst x-pointer-draft-large 44)
 223 (defconst x-pointer-draft-small 46)
 224 (defconst x-pointer-draped-box 48)
 225 (defconst x-pointer-exchange 50)
 226 (defconst x-pointer-fleur 52)
 227 (defconst x-pointer-gobbler 54)
 228 (defconst x-pointer-gumby 56)
 229 (defconst x-pointer-hand1 58)
 230 (defconst x-pointer-hand2 60)
 231 (defconst x-pointer-heart 62)
 232 (defconst x-pointer-icon 64)
 233 (defconst x-pointer-iron-cross 66)
 234 (defconst x-pointer-left-ptr 68)
 235 (defconst x-pointer-left-side 70)
 236 (defconst x-pointer-left-tee 72)
 237 (defconst x-pointer-leftbutton 74)
 238 (defconst x-pointer-ll-angle 76)
 239 (defconst x-pointer-lr-angle 78)
 240 (defconst x-pointer-man 80)
 241 (defconst x-pointer-middlebutton 82)
 242 (defconst x-pointer-mouse 84)
 243 (defconst x-pointer-pencil 86)
 244 (defconst x-pointer-pirate 88)
 245 (defconst x-pointer-plus 90)
 246 (defconst x-pointer-question-arrow 92)
 247 (defconst x-pointer-right-ptr 94)
 248 (defconst x-pointer-right-side 96)
 249 (defconst x-pointer-right-tee 98)
 250 (defconst x-pointer-rightbutton 100)
 251 (defconst x-pointer-rtl-logo 102)
 252 (defconst x-pointer-sailboat 104)
 253 (defconst x-pointer-sb-down-arrow 106)
 254 (defconst x-pointer-sb-h-double-arrow 108)
 255 (defconst x-pointer-sb-left-arrow 110)
 256 (defconst x-pointer-sb-right-arrow 112)
 257 (defconst x-pointer-sb-up-arrow 114)
 258 (defconst x-pointer-sb-v-double-arrow 116)
 259 (defconst x-pointer-shuttle 118)
 260 (defconst x-pointer-sizing 120)
 261 (defconst x-pointer-spider 122)
 262 (defconst x-pointer-spraycan 124)
 263 (defconst x-pointer-star 126)
 264 (defconst x-pointer-target 128)
 265 (defconst x-pointer-tcross 130)
 266 (defconst x-pointer-top-left-arrow 132)
 267 (defconst x-pointer-top-left-corner 134)
 268 (defconst x-pointer-top-right-corner 136)
 269 (defconst x-pointer-top-side 138)
 270 (defconst x-pointer-top-tee 140)
 271 (defconst x-pointer-trek 142)
 272 (defconst x-pointer-ul-angle 144)
 273 (defconst x-pointer-umbrella 146)
 274 (defconst x-pointer-ur-angle 148)
 275 (defconst x-pointer-watch 150)
 276 (defconst x-pointer-xterm 152)
 277 \f
 278 ;;
 279 ;; Available colors
 280 ;;
 281
 282 (defvar x-colors '("aquamarine"
 283                    "Aquamarine"
 284                    "medium aquamarine"
 285                    "MediumAquamarine"
 286                    "black"
 287                    "Black"
 288                    "blue"
 289                    "Blue"
 290                    "cadet blue"
 291                    "CadetBlue"
 292                    "cornflower blue"
 293                    "CornflowerBlue"
 294                    "dark slate blue"
 295                    "DarkSlateBlue"
 296                    "light blue"
 297                    "LightBlue"
 298                    "light steel blue"
 299                    "LightSteelBlue"
 300                    "medium blue"
 301                    "MediumBlue"
 302                    "medium slate blue"
 303                    "MediumSlateBlue"
 304                    "midnight blue"
 305                    "MidnightBlue"
 306                    "navy blue"
 307                    "NavyBlue"
 308                    "navy"
 309                    "Navy"
 310                    "sky blue"
 311                    "SkyBlue"
 312                    "slate blue"
 313                    "SlateBlue"
 314                    "steel blue"
 315                    "SteelBlue"
 316                    "coral"
 317                    "Coral"
 318                    "cyan"
 319                    "Cyan"
 320                    "firebrick"
 321                    "Firebrick"
 322                    "brown"
 323                    "Brown"
 324                    "gold"
 325                    "Gold"
 326                    "goldenrod"
 327                    "Goldenrod"
 328                    "green"
 329                    "Green"
 330                    "dark green"
 331                    "DarkGreen"
 332                    "dark olive green"
 333                    "DarkOliveGreen"
 334                    "forest green"
 335                    "ForestGreen"
 336                    "lime green"
 337                    "LimeGreen"
 338                    "medium sea green"
 339                    "MediumSeaGreen"
 340                    "medium spring green"
 341                    "MediumSpringGreen"
 342                    "pale green"
 343                    "PaleGreen"
 344                    "sea green"
 345                    "SeaGreen"
 346                    "spring green"
 347                    "SpringGreen"
 348                    "yellow green"
 349                    "YellowGreen"
 350                    "dark slate grey"
 351                    "DarkSlateGrey"
 352                    "dark slate gray"
 353                    "DarkSlateGray"
 354                    "dim grey"
 355                    "DimGrey"
 356                    "dim gray"
 357                    "DimGray"
 358                    "light grey"
 359                    "LightGrey"
 360                    "light gray"
 361                    "LightGray"
 362                    "gray"
 363                    "grey"
 364                    "Gray"
 365                    "Grey"
 366                    "khaki"
 367                    "Khaki"
 368                    "magenta"
 369                    "Magenta"
 370                    "maroon"
 371                    "Maroon"
 372                    "orange"
 373                    "Orange"
 374                    "orchid"
 375                    "Orchid"
 376                    "dark orchid"
 377                    "DarkOrchid"
 378                    "medium orchid"
 379                    "MediumOrchid"
 380                    "pink"
 381                    "Pink"
 382                    "plum"
 383                    "Plum"
 384                    "red"
 385                    "Red"
 386                    "indian red"
 387                    "IndianRed"
 388                    "medium violet red"
 389                    "MediumVioletRed"
 390                    "orange red"
 391                    "OrangeRed"
 392                    "violet red"
 393                    "VioletRed"
 394                    "salmon"
 395                    "Salmon"
 396                    "sienna"
 397                    "Sienna"
 398                    "tan"
 399                    "Tan"
 400                    "thistle"
 401                    "Thistle"
 402                    "turquoise"
 403                    "Turquoise"
 404                    "dark turquoise"
 405                    "DarkTurquoise"
 406                    "medium turquoise"
 407                    "MediumTurquoise"
 408                    "violet"
 409                    "Violet"
 410                    "blue violet"
 411                    "BlueViolet"
 412                    "wheat"
 413                    "Wheat"
 414                    "white"
 415                    "White"
 416                    "yellow"
 417                    "Yellow"
 418                    "green yellow"
 419                    "GreenYellow")
 420   "The list of X colors from the `rgb.txt' file.")
 421
 422 (defun x-defined-colors (&optional frame)
 423   "Return a list of colors supported for a particular frame.
 424 The argument FRAME specifies which frame to try.
 425 The value may be different for frames on different X displays."
 426   (or frame (setq frame (selected-frame)))
 427   (let ((all-colors x-colors)
 428         (this-color nil)
 429         (defined-colors nil))
 430     (while all-colors
 431       (setq this-color (car all-colors)
 432             all-colors (cdr all-colors))
 433       (and (face-color-supported-p frame this-color t)
 434            (setq defined-colors (cons this-color defined-colors))))
 435     defined-colors))
 436 \f
 437 ;;;; Function keys
 438
 439 (defun iconify-or-deiconify-frame ()
 440   "Iconify the selected frame, or deiconify if it's currently an icon."
 441   (interactive)
 442   (if (eq (cdr (assq 'visibility (frame-parameters))) t)
 443       (iconify-frame)
 444     (make-frame-visible)))
 445
 446 (substitute-key-definition 'suspend-emacs 'iconify-or-deiconify-frame
 447                            global-map)
 448
 449 ;; Map certain keypad keys into ASCII characters
 450 ;; that people usually expect.
 451 (define-key function-key-map [backspace] [127])
 452 (define-key function-key-map [delete] [127])
 453 (define-key function-key-map [tab] [?\t])
 454 (define-key function-key-map [linefeed] [?\n])
 455 (define-key function-key-map [clear] [?\C-l])
 456 (define-key function-key-map [return] [?\C-m])
 457 (define-key function-key-map [escape] [?\e])
 458 (define-key function-key-map [M-backspace] [?\M-\d])
 459 (define-key function-key-map [M-delete] [?\M-\d])
 460 (define-key function-key-map [M-tab] [?\M-\t])
 461 (define-key function-key-map [M-linefeed] [?\M-\n])
 462 (define-key function-key-map [M-clear] [?\M-\C-l])
 463 (define-key function-key-map [M-return] [?\M-\C-m])
 464 (define-key function-key-map [M-escape] [?\M-\e])
 465
 466 ;; These tell read-char how to convert
 467 ;; these special chars to ASCII.
 468 (put 'backspace 'ascii-character 127)
 469 (put 'delete 'ascii-character 127)
 470 (put 'tab 'ascii-character ?\t)
 471 (put 'linefeed 'ascii-character ?\n)
 472 (put 'clear 'ascii-character 12)
 473 (put 'return 'ascii-character 13)
 474 (put 'escape 'ascii-character ?\e)
 475
 476 (defun vendor-specific-keysyms (vendor)
 477   "Return the appropriate value of system-key-alist for VENDOR.
 478 VENDOR is a string containing the name of the X Server's vendor,
 479 as returned by (x-server-vendor)."
 480   (cond ((string-equal vendor "Apollo Computer Inc.")
 481          '((65280 . linedel)
 482            (65281 . chardel)
 483            (65282 . copy)
 484            (65283 . cut)
 485            (65284 . paste)
 486            (65285 . move)
 487            (65286 . grow)
 488            (65287 . cmd)
 489            (65288 . shell)
 490            (65289 . leftbar)
 491            (65290 . rightbar)
 492            (65291 . leftbox)
 493            (65292 . rightbox)
 494            (65293 . upbox)
 495            (65294 . downbox)
 496            (65295 . pop)
 497            (65296 . read)
 498            (65297 . edit)
 499            (65298 . save)
 500            (65299 . exit)
 501            (65300 . repeat)))
 502         ((or (string-equal vendor "Hewlett-Packard Incorporated")
 503              (string-equal vendor "Hewlett-Packard Company"))
 504          '((  168 . mute-acute)
 505            (  169 . mute-grave)
 506            (  170 . mute-asciicircum)
 507            (  171 . mute-diaeresis)
 508            (  172 . mute-asciitilde)
 509            (  175 . lira)
 510            (  190 . guilder)
 511            (  252 . block)
 512            (  256 . longminus)
 513            (65388 . reset)
 514            (65389 . system)
 515            (65390 . user)
 516            (65391 . clearline)
 517            (65392 . insertline)
 518            (65393 . deleteline)
 519            (65394 . insertchar)
 520            (65395 . deletechar)
 521            (65396 . backtab)
 522            (65397 . kp-backtab)))
 523         ((or (string-equal vendor "X11/NeWS - Sun Microsystems Inc.")
 524              (string-equal vendor "X Consortium"))
 525          '((392976 . f36)
 526            (392977 . f37)
 527            (393056 . req)
 528            ;; These are for Sun under X11R6
 529            (393072 . props)
 530            (393073 . front)
 531            (393074 . copy)
 532            (393075 . open)
 533            (393076 . paste)
 534            (393077 . cut)))
 535         (t
 536          ;; This is used by DEC's X server.
 537          '((65280 . remove)))))
 538
 539 \f
 540 ;;;; Selections and cut buffers
 541
 542 ;;; We keep track of the last text selected here, so we can check the
 543 ;;; current selection against it, and avoid passing back our own text
 544 ;;; from x-cut-buffer-or-selection-value.
 545 (defvar x-last-selected-text nil)
 546
 547 ;;; It is said that overlarge strings are slow to put into the cut buffer.
 548 ;;; Note this value is overridden below.
 549 (defvar x-cut-buffer-max 20000
 550   "Max number of characters to put in the cut buffer.")
 551
 552 (defvar x-select-enable-clipboard nil
 553   "Non-nil means cutting and pasting uses the clipboard.
 554 This is in addition to the primary selection.")
 555
 556 ;;; Make TEXT, a string, the primary X selection.
 557 ;;; Also, set the value of X cut buffer 0, for backward compatibility
 558 ;;; with older X applications.
 559 ;;; gildea@lcs.mit.edu says it's not desirable to put kills
 560 ;;; in the clipboard.
 561 (defun x-select-text (text &optional push)
 562   ;; Don't send the cut buffer too much text.
 563   ;; It becomes slow, and if really big it causes errors.
 564   (if (< (length text) x-cut-buffer-max)
 565       (x-set-cut-buffer text push)
 566     (x-set-cut-buffer "" push))
 567   (x-set-selection 'PRIMARY text)
 568   (if x-select-enable-clipboard
 569       (x-set-selection 'CLIPBOARD text))
 570   (setq x-last-selected-text text))
 571
 572 ;;; Return the value of the current X selection.
 573 ;;; Consult the selection, then the cut buffer.  Treat empty strings
 574 ;;; as if they were unset.
 575 (defun x-cut-buffer-or-selection-value ()
 576   (let (text)
 577
 578     ;; Don't die if x-get-selection signals an error.
 579     (condition-case c
 580         (setq text (x-get-selection 'PRIMARY))
 581       (error nil))
 582     (if (string= text "") (setq text nil))
 583
 584     (if x-select-enable-clipboard
 585         (condition-case c
 586             (setq text (x-get-selection 'CLIPBOARD))
 587           (error nil)))
 588     (if (string= text "") (setq text nil))
 589     (or text (setq text (x-get-cut-buffer 0)))
 590     (if (string= text "") (setq text nil))
 591
 592     (cond
 593      ((not text) nil)
 594      ((eq text x-last-selected-text) nil)
 595      ((string= text x-last-selected-text)
 596       ;; Record the newer string, so subsequent calls can use the `eq' test.
 597       (setq x-last-selected-text text)
 598       nil)
 599      (t
 600       (setq x-last-selected-text text)))))
 601
 602 \f
 603 ;;; Do the actual X Windows setup here; the above code just defines
 604 ;;; functions and variables that we use now.
 605
 606 (setq command-line-args (x-handle-args command-line-args))
 607
 608 ;;; Make sure we have a valid resource name.
 609 (or (stringp x-resource-name)
 610     (let (i)
 611       (setq x-resource-name (invocation-name))
 612
 613       ;; Change any . or * characters in x-resource-name to hyphens,
 614       ;; so as not to choke when we use it in X resource queries.
 615       (while (setq i (string-match "[.*]" x-resource-name))
 616         (aset x-resource-name i ?-))))
 617
 618 ;; For the benefit of older Emacses (19.27 and earlier) that are sharing
 619 ;; the same lisp directory, don't pass the third argument unless we seem
 620 ;; to have the multi-display support.
 621 (if (fboundp 'x-close-connection)
 622     (x-open-connection (or x-display-name
 623                            (setq x-display-name (getenv "DISPLAY")))
 624                        x-command-line-resources
 625                        ;; Exit Emacs with fatal error if this fails.
 626                        t)
 627   (x-open-connection (or x-display-name
 628                          (setq x-display-name (getenv "DISPLAY")))
 629                      x-command-line-resources))
 630
 631 (setq frame-creation-function 'x-create-frame-with-faces)
 632
 633 (setq x-cut-buffer-max (min (- (/ (x-server-max-request-size) 2) 100)
 634                             x-cut-buffer-max))
 635
 636 ;; Sun expects the menu bar cut and paste commands to use the clipboard.
 637 ;; This has ,? to match both on Sunos and on Solaris.
 638 (if (string-match "Sun Microsystems,? Inc\\."
 639                   (x-server-vendor))
 640     (menu-bar-enable-clipboard))
 641
 642 ;; Apply a geometry resource to the initial frame.  Put it at the end
 643 ;; of the alist, so that anything specified on the command line takes
 644 ;; precedence.
 645 (let* ((res-geometry (x-get-resource "geometry" "Geometry"))
 646        parsed)
 647   (if res-geometry
 648       (progn
 649         (setq parsed (x-parse-geometry res-geometry))
 650         ;; If the resource specifies a position,
 651         ;; call the position and size "user-specified".
 652         (if (or (assq 'top parsed) (assq 'left parsed))
 653             (setq parsed (cons '(user-position . t)
 654                                (cons '(user-size . t) parsed))))
 655         ;; All geometry parms apply to the initial frame.
 656         (setq initial-frame-alist (append initial-frame-alist parsed))
 657         ;; The size parms apply to all frames.
 658         (if (assq 'height parsed)
 659             (setq default-frame-alist
 660                   (cons (cons 'height (cdr (assq 'height parsed)))
 661                         default-frame-alist)))
 662         (if (assq 'width parsed)
 663             (setq default-frame-alist
 664                   (cons (cons 'width (cdr (assq 'width parsed)))
 665                         default-frame-alist))))))
 666
 667 ;; Check the reverseVideo resource.
 668 (let ((case-fold-search t))
 669   (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
 670     (if (and rv
 671              (string-match "^\\(true\\|yes\\|on\\)$" rv))
 672         (setq default-frame-alist
 673               (cons '(reverse . t) default-frame-alist)))))
 674
 675 ;; Set x-selection-timeout, measured in milliseconds.
 676 (let ((res-selection-timeout
 677        (x-get-resource "selectionTimeout" "SelectionTimeout")))
 678   (setq x-selection-timeout 20000)
 679   (if res-selection-timeout
 680       (setq x-selection-timeout (string-to-number res-selection-timeout))))
 681
 682 (defun x-win-suspend-error ()
 683   (error "Suspending an emacs running under X makes no sense"))
 684 (add-hook 'suspend-hook 'x-win-suspend-error)
 685
 686 ;;; Arrange for the kill and yank functions to set and check the clipboard.
 687 (setq interprogram-cut-function 'x-select-text)
 688 (setq interprogram-paste-function 'x-cut-buffer-or-selection-value)
 689
 690 ;;; Turn off window-splitting optimization; X is usually fast enough
 691 ;;; that this is only annoying.
 692 (setq split-window-keep-point t)
 693
 694 ;; Don't show the frame name; that's redundant with X.
 695 (setq-default mode-line-buffer-identification '("Emacs: %12b"))
 696
 697 ;;; x-win.el ends here