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

   1 ;;; x-win.el --- parse switches controlling interface with X window system
   2
   3 ;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
   4
   5 ;; Author: FSF
   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 ;; X-win.el:  this file is loaded from ../lisp/startup.el when it recognizes
  28 ;; that X windows are to be used.  Command line switches are parsed and those
  29 ;; pertaining to X are processed and removed from the command line.  The
  30 ;; X display is opened and hooks are set for popping up the initial window.
  31
  32 ;; startup.el will then examine startup files, and eventually call the hooks
  33 ;; which create the first window (s).
  34
  35 ;;; Code:
  36 \f
  37 ;; These are the standard X switches from the Xt Initialize.c file of
  38 ;; Release 4.
  39
  40 ;; Command line         Resource Manager string
  41
  42 ;; +rv                  *reverseVideo
  43 ;; +synchronous         *synchronous
  44 ;; -background          *background
  45 ;; -bd                  *borderColor
  46 ;; -bg                  *background
  47 ;; -bordercolor         *borderColor
  48 ;; -borderwidth         .borderWidth
  49 ;; -bw                  .borderWidth
  50 ;; -display             .display
  51 ;; -fg                  *foreground
  52 ;; -fn                  *font
  53 ;; -font                *font
  54 ;; -foreground          *foreground
  55 ;; -geometry            .geometry
  56 ;; -i                   .iconType
  57 ;; -itype               .iconType
  58 ;; -iconic              .iconic
  59 ;; -name                .name
  60 ;; -reverse             *reverseVideo
  61 ;; -rv                  *reverseVideo
  62 ;; -selectionTimeout    .selectionTimeout
  63 ;; -synchronous         *synchronous
  64 ;; -xrm
  65
  66 ;; An alist of X options and the function which handles them.  See
  67 ;; ../startup.el.
  68
  69 (if (not (eq window-system 'x))
  70     (error "%s: Loading x-win.el but not compiled for X" (invocation-name)))
  71
  72 (require 'frame)
  73 (require 'mouse)
  74 (require 'scroll-bar)
  75 (require 'faces)
  76 (require 'select)
  77 (require 'menu-bar)
  78 (if (fboundp 'new-fontset)
  79     (require 'fontset))
  80
  81 (defvar x-invocation-args)
  82
  83 (defvar x-command-line-resources nil)
  84
  85 ;; Handler for switches of the form "-switch value" or "-switch".
  86 (defun x-handle-switch (switch)
  87   (let ((aelt (assoc switch command-line-x-option-alist)))
  88     (if aelt
  89         (let ((param (nth 3 aelt))
  90               (value (nth 4 aelt)))
  91           (if value
  92               (setq default-frame-alist
  93                     (cons (cons param value)
  94                           default-frame-alist))
  95             (setq default-frame-alist
  96                   (cons (cons param
  97                               (car x-invocation-args))
  98                         default-frame-alist)
  99                   x-invocation-args (cdr x-invocation-args)))))))
 100
 101 ;; Handler for switches of the form "-switch n"
 102 (defun x-handle-numeric-switch (switch)
 103   (let ((aelt (assoc switch command-line-x-option-alist)))
 104     (if aelt
 105         (let ((param (nth 3 aelt)))
 106           (setq default-frame-alist
 107                 (cons (cons param
 108                             (string-to-int (car x-invocation-args)))
 109                       default-frame-alist)
 110                 x-invocation-args
 111                 (cdr x-invocation-args))))))
 112
 113 ;; Make -iconic apply only to the initial frame!
 114 (defun x-handle-iconic (switch)
 115   (setq initial-frame-alist
 116         (cons '(visibility . icon) initial-frame-alist)))
 117
 118 ;; Handle the -xrm option.
 119 (defun x-handle-xrm-switch (switch)
 120   (or (consp x-invocation-args)
 121       (error "%s: missing argument to `%s' option" (invocation-name) switch))
 122   (setq x-command-line-resources (car x-invocation-args))
 123   (setq x-invocation-args (cdr x-invocation-args)))
 124
 125 ;; Handle the geometry option
 126 (defun x-handle-geometry (switch)
 127   (let ((geo (x-parse-geometry (car x-invocation-args))))
 128     (setq initial-frame-alist
 129           (append initial-frame-alist
 130                   (if (or (assq 'left geo) (assq 'top geo))
 131                       '((user-position . t)))
 132                   (if (or (assq 'height geo) (assq 'width geo))
 133                       '((user-size . t)))
 134                   geo)
 135           x-invocation-args (cdr x-invocation-args))))
 136
 137 ;; Handle the -name option.  Set the variable x-resource-name
 138 ;; to the option's operand; set the name of
 139 ;; the initial frame, too.
 140 (defun x-handle-name-switch (switch)
 141   (or (consp x-invocation-args)
 142       (error "%s: missing argument to `%s' option" (invocation-name) switch))
 143   (setq x-resource-name (car x-invocation-args)
 144         x-invocation-args (cdr x-invocation-args))
 145   (setq initial-frame-alist (cons (cons 'name x-resource-name)
 146                                   initial-frame-alist)))
 147
 148 (defvar x-display-name nil
 149   "The X display name specifying server and X frame.")
 150
 151 (defun x-handle-display (switch)
 152   (setq x-display-name (car x-invocation-args)
 153         x-invocation-args (cdr x-invocation-args))
 154   ;; Make subshell programs see the same DISPLAY value Emacs really uses.
 155   ;; Note that this isn't completely correct, since Emacs can use
 156   ;; multiple displays.  However, there is no way to tell an already
 157   ;; running subshell which display the user is currently typing on.
 158   (setenv "DISPLAY" x-display-name))
 159
 160 (defun x-handle-args (args)
 161   "Process the X-related command line options in ARGS.
 162 This is done before the user's startup file is loaded.  They are copied to
 163 `x-invocation-args', from which the X-related things are extracted, first
 164 the switch (e.g., \"-fg\") in the following code, and possible values
 165 \(e.g., \"black\") in the option handler code (e.g., x-handle-switch).
 166 This function returns ARGS minus the arguments that have been processed."
 167   ;; We use ARGS to accumulate the args that we don't handle here, to return.
 168   (setq x-invocation-args args
 169         args nil)
 170   (while (and x-invocation-args
 171               (not (equal (car x-invocation-args) "--")))
 172     (let* ((this-switch (car x-invocation-args))
 173            (orig-this-switch this-switch)
 174            completion argval aelt handler)
 175       (setq x-invocation-args (cdr x-invocation-args))
 176       ;; Check for long options with attached arguments
 177       ;; and separate out the attached option argument into argval.
 178       (if (string-match "^--[^=]*=" this-switch)
 179           (setq argval (substring this-switch (match-end 0))
 180                 this-switch (substring this-switch 0 (1- (match-end 0)))))
 181       ;; Complete names of long options.
 182       (if (string-match "^--" this-switch)
 183           (progn
 184             (setq completion (try-completion this-switch command-line-x-option-alist))
 185             (if (eq completion t)
 186                 ;; Exact match for long option.
 187                 nil
 188               (if (stringp completion)
 189                   (let ((elt (assoc completion command-line-x-option-alist)))
 190                     ;; Check for abbreviated long option.
 191                     (or elt
 192                         (error "Option `%s' is ambiguous" this-switch))
 193                     (setq this-switch completion))))))
 194       (setq aelt (assoc this-switch command-line-x-option-alist))
 195       (if aelt (setq handler (nth 2 aelt)))
 196       (if handler
 197           (if argval
 198               (let ((x-invocation-args
 199                      (cons argval x-invocation-args)))
 200                 (funcall handler this-switch))
 201             (funcall handler this-switch))
 202         (setq args (cons orig-this-switch args)))))
 203   (nconc (nreverse args) x-invocation-args))
 204 \f
 205 ;;
 206 ;; Standard X cursor shapes, courtesy of Mr. Fox, who wanted ALL of them.
 207 ;;
 208
 209 (defconst x-pointer-X-cursor 0)
 210 (defconst x-pointer-arrow 2)
 211 (defconst x-pointer-based-arrow-down 4)
 212 (defconst x-pointer-based-arrow-up 6)
 213 (defconst x-pointer-boat 8)
 214 (defconst x-pointer-bogosity 10)
 215 (defconst x-pointer-bottom-left-corner 12)
 216 (defconst x-pointer-bottom-right-corner 14)
 217 (defconst x-pointer-bottom-side 16)
 218 (defconst x-pointer-bottom-tee 18)
 219 (defconst x-pointer-box-spiral 20)
 220 (defconst x-pointer-center-ptr 22)
 221 (defconst x-pointer-circle 24)
 222 (defconst x-pointer-clock 26)
 223 (defconst x-pointer-coffee-mug 28)
 224 (defconst x-pointer-cross 30)
 225 (defconst x-pointer-cross-reverse 32)
 226 (defconst x-pointer-crosshair 34)
 227 (defconst x-pointer-diamond-cross 36)
 228 (defconst x-pointer-dot 38)
 229 (defconst x-pointer-dotbox 40)
 230 (defconst x-pointer-double-arrow 42)
 231 (defconst x-pointer-draft-large 44)
 232 (defconst x-pointer-draft-small 46)
 233 (defconst x-pointer-draped-box 48)
 234 (defconst x-pointer-exchange 50)
 235 (defconst x-pointer-fleur 52)
 236 (defconst x-pointer-gobbler 54)
 237 (defconst x-pointer-gumby 56)
 238 (defconst x-pointer-hand1 58)
 239 (defconst x-pointer-hand2 60)
 240 (defconst x-pointer-heart 62)
 241 (defconst x-pointer-icon 64)
 242 (defconst x-pointer-iron-cross 66)
 243 (defconst x-pointer-left-ptr 68)
 244 (defconst x-pointer-left-side 70)
 245 (defconst x-pointer-left-tee 72)
 246 (defconst x-pointer-leftbutton 74)
 247 (defconst x-pointer-ll-angle 76)
 248 (defconst x-pointer-lr-angle 78)
 249 (defconst x-pointer-man 80)
 250 (defconst x-pointer-middlebutton 82)
 251 (defconst x-pointer-mouse 84)
 252 (defconst x-pointer-pencil 86)
 253 (defconst x-pointer-pirate 88)
 254 (defconst x-pointer-plus 90)
 255 (defconst x-pointer-question-arrow 92)
 256 (defconst x-pointer-right-ptr 94)
 257 (defconst x-pointer-right-side 96)
 258 (defconst x-pointer-right-tee 98)
 259 (defconst x-pointer-rightbutton 100)
 260 (defconst x-pointer-rtl-logo 102)
 261 (defconst x-pointer-sailboat 104)
 262 (defconst x-pointer-sb-down-arrow 106)
 263 (defconst x-pointer-sb-h-double-arrow 108)
 264 (defconst x-pointer-sb-left-arrow 110)
 265 (defconst x-pointer-sb-right-arrow 112)
 266 (defconst x-pointer-sb-up-arrow 114)
 267 (defconst x-pointer-sb-v-double-arrow 116)
 268 (defconst x-pointer-shuttle 118)
 269 (defconst x-pointer-sizing 120)
 270 (defconst x-pointer-spider 122)
 271 (defconst x-pointer-spraycan 124)
 272 (defconst x-pointer-star 126)
 273 (defconst x-pointer-target 128)
 274 (defconst x-pointer-tcross 130)
 275 (defconst x-pointer-top-left-arrow 132)
 276 (defconst x-pointer-top-left-corner 134)
 277 (defconst x-pointer-top-right-corner 136)
 278 (defconst x-pointer-top-side 138)
 279 (defconst x-pointer-top-tee 140)
 280 (defconst x-pointer-trek 142)
 281 (defconst x-pointer-ul-angle 144)
 282 (defconst x-pointer-umbrella 146)
 283 (defconst x-pointer-ur-angle 148)
 284 (defconst x-pointer-watch 150)
 285 (defconst x-pointer-xterm 152)
 286 \f
 287 ;;
 288 ;; Available colors
 289 ;;
 290
 291 (defvar x-colors '("aquamarine"
 292                    "Aquamarine"
 293                    "medium aquamarine"
 294                    "MediumAquamarine"
 295                    "black"
 296                    "Black"
 297                    "blue"
 298                    "Blue"
 299                    "cadet blue"
 300                    "CadetBlue"
 301                    "cornflower blue"
 302                    "CornflowerBlue"
 303                    "dark slate blue"
 304                    "DarkSlateBlue"
 305                    "light blue"
 306                    "LightBlue"
 307                    "light steel blue"
 308                    "LightSteelBlue"
 309                    "medium blue"
 310                    "MediumBlue"
 311                    "medium slate blue"
 312                    "MediumSlateBlue"
 313                    "midnight blue"
 314                    "MidnightBlue"
 315                    "navy blue"
 316                    "NavyBlue"
 317                    "navy"
 318                    "Navy"
 319                    "sky blue"
 320                    "SkyBlue"
 321                    "slate blue"
 322                    "SlateBlue"
 323                    "steel blue"
 324                    "SteelBlue"
 325                    "coral"
 326                    "Coral"
 327                    "cyan"
 328                    "Cyan"
 329                    "firebrick"
 330                    "Firebrick"
 331                    "brown"
 332                    "Brown"
 333                    "gold"
 334                    "Gold"
 335                    "goldenrod"
 336                    "Goldenrod"
 337                    "green"
 338                    "Green"
 339                    "dark green"
 340                    "DarkGreen"
 341                    "dark olive green"
 342                    "DarkOliveGreen"
 343                    "forest green"
 344                    "ForestGreen"
 345                    "lime green"
 346                    "LimeGreen"
 347                    "medium sea green"
 348                    "MediumSeaGreen"
 349                    "medium spring green"
 350                    "MediumSpringGreen"
 351                    "pale green"
 352                    "PaleGreen"
 353                    "sea green"
 354                    "SeaGreen"
 355                    "spring green"
 356                    "SpringGreen"
 357                    "yellow green"
 358                    "YellowGreen"
 359                    "dark slate grey"
 360                    "DarkSlateGrey"
 361                    "dark slate gray"
 362                    "DarkSlateGray"
 363                    "dim grey"
 364                    "DimGrey"
 365                    "dim gray"
 366                    "DimGray"
 367                    "light grey"
 368                    "LightGrey"
 369                    "light gray"
 370                    "LightGray"
 371                    "gray"
 372                    "grey"
 373                    "Gray"
 374                    "Grey"
 375                    "khaki"
 376                    "Khaki"
 377                    "magenta"
 378                    "Magenta"
 379                    "maroon"
 380                    "Maroon"
 381                    "orange"
 382                    "Orange"
 383                    "orchid"
 384                    "Orchid"
 385                    "dark orchid"
 386                    "DarkOrchid"
 387                    "medium orchid"
 388                    "MediumOrchid"
 389                    "pink"
 390                    "Pink"
 391                    "plum"
 392                    "Plum"
 393                    "red"
 394                    "Red"
 395                    "indian red"
 396                    "IndianRed"
 397                    "medium violet red"
 398                    "MediumVioletRed"
 399                    "orange red"
 400                    "OrangeRed"
 401                    "violet red"
 402                    "VioletRed"
 403                    "salmon"
 404                    "Salmon"
 405                    "sienna"
 406                    "Sienna"
 407                    "tan"
 408                    "Tan"
 409                    "thistle"
 410                    "Thistle"
 411                    "turquoise"
 412                    "Turquoise"
 413                    "dark turquoise"
 414                    "DarkTurquoise"
 415                    "medium turquoise"
 416                    "MediumTurquoise"
 417                    "violet"
 418                    "Violet"
 419                    "blue violet"
 420                    "BlueViolet"
 421                    "wheat"
 422                    "Wheat"
 423                    "white"
 424                    "White"
 425                    "yellow"
 426                    "Yellow"
 427                    "green yellow"
 428                    "GreenYellow")
 429   "The list of X colors from the `rgb.txt' file.")
 430
 431 (defun x-defined-colors (&optional frame)
 432   "Return a list of colors supported for a particular frame.
 433 The argument FRAME specifies which frame to try.
 434 The value may be different for frames on different X displays."
 435   (or frame (setq frame (selected-frame)))
 436   (let ((all-colors x-colors)
 437         (this-color nil)
 438         (defined-colors nil))
 439     (while all-colors
 440       (setq this-color (car all-colors)
 441             all-colors (cdr all-colors))
 442       (and (face-color-supported-p frame this-color t)
 443            (setq defined-colors (cons this-color defined-colors))))
 444     defined-colors))
 445 \f
 446 ;;;; Function keys
 447
 448 (defun iconify-or-deiconify-frame ()
 449   "Iconify the selected frame, or deiconify if it's currently an icon."
 450   (interactive)
 451   (if (eq (cdr (assq 'visibility (frame-parameters))) t)
 452       (iconify-frame)
 453     (make-frame-visible)))
 454
 455 (substitute-key-definition 'suspend-emacs 'iconify-or-deiconify-frame
 456                            global-map)
 457
 458 ;; Map certain keypad keys into ASCII characters
 459 ;; that people usually expect.
 460 (define-key function-key-map [backspace] [127])
 461 (define-key function-key-map [delete] [127])
 462 (define-key function-key-map [tab] [?\t])
 463 (define-key function-key-map [linefeed] [?\n])
 464 (define-key function-key-map [clear] [?\C-l])
 465 (define-key function-key-map [return] [?\C-m])
 466 (define-key function-key-map [escape] [?\e])
 467 (define-key function-key-map [M-backspace] [?\M-\d])
 468 (define-key function-key-map [M-delete] [?\M-\d])
 469 (define-key function-key-map [M-tab] [?\M-\t])
 470 (define-key function-key-map [M-linefeed] [?\M-\n])
 471 (define-key function-key-map [M-clear] [?\M-\C-l])
 472 (define-key function-key-map [M-return] [?\M-\C-m])
 473 (define-key function-key-map [M-escape] [?\M-\e])
 474 (define-key function-key-map [iso-lefttab] [backtab])
 475
 476 ;; These tell read-char how to convert
 477 ;; these special chars to ASCII.
 478 (put 'backspace 'ascii-character 127)
 479 (put 'delete 'ascii-character 127)
 480 (put 'tab 'ascii-character ?\t)
 481 (put 'linefeed 'ascii-character ?\n)
 482 (put 'clear 'ascii-character 12)
 483 (put 'return 'ascii-character 13)
 484 (put 'escape 'ascii-character ?\e)
 485
 486 (defun vendor-specific-keysyms (vendor)
 487   "Return the appropriate value of system-key-alist for VENDOR.
 488 VENDOR is a string containing the name of the X Server's vendor,
 489 as returned by (x-server-vendor)."
 490   (cond ((string-equal vendor "Apollo Computer Inc.")
 491          '((65280 . linedel)
 492            (65281 . chardel)
 493            (65282 . copy)
 494            (65283 . cut)
 495            (65284 . paste)
 496            (65285 . move)
 497            (65286 . grow)
 498            (65287 . cmd)
 499            (65288 . shell)
 500            (65289 . leftbar)
 501            (65290 . rightbar)
 502            (65291 . leftbox)
 503            (65292 . rightbox)
 504            (65293 . upbox)
 505            (65294 . downbox)
 506            (65295 . pop)
 507            (65296 . read)
 508            (65297 . edit)
 509            (65298 . save)
 510            (65299 . exit)
 511            (65300 . repeat)))
 512         ((or (string-equal vendor "Hewlett-Packard Incorporated")
 513              (string-equal vendor "Hewlett-Packard Company"))
 514          '((  168 . mute-acute)
 515            (  169 . mute-grave)
 516            (  170 . mute-asciicircum)
 517            (  171 . mute-diaeresis)
 518            (  172 . mute-asciitilde)
 519            (  175 . lira)
 520            (  190 . guilder)
 521            (  252 . block)
 522            (  256 . longminus)
 523            (65388 . reset)
 524            (65389 . system)
 525            (65390 . user)
 526            (65391 . clearline)
 527            (65392 . insertline)
 528            (65393 . deleteline)
 529            (65394 . insertchar)
 530            (65395 . deletechar)
 531            (65396 . backtab)
 532            (65397 . kp-backtab)))
 533         ((or (string-equal vendor "X11/NeWS - Sun Microsystems Inc.")
 534              (string-equal vendor "X Consortium"))
 535          '((392976 . f36)
 536            (392977 . f37)
 537            (393056 . req)
 538            ;; These are for Sun under X11R6
 539            (393072 . props)
 540            (393073 . front)
 541            (393074 . copy)
 542            (393075 . open)
 543            (393076 . paste)
 544            (393077 . cut)))
 545         (t
 546          ;; This is used by DEC's X server.
 547          '((65280 . remove)))))
 548
 549 \f
 550 ;;;; Selections and cut buffers
 551
 552 ;;; We keep track of the last text selected here, so we can check the
 553 ;;; current selection against it, and avoid passing back our own text
 554 ;;; from x-cut-buffer-or-selection-value.
 555 (defvar x-last-selected-text nil)
 556
 557 ;;; It is said that overlarge strings are slow to put into the cut buffer.
 558 ;;; Note this value is overridden below.
 559 (defvar x-cut-buffer-max 20000
 560   "Max number of characters to put in the cut buffer.")
 561
 562 (defvar x-select-enable-clipboard nil
 563   "Non-nil means cutting and pasting uses the clipboard.
 564 This is in addition to the primary selection.")
 565
 566 ;;; Make TEXT, a string, the primary X selection.
 567 ;;; Also, set the value of X cut buffer 0, for backward compatibility
 568 ;;; with older X applications.
 569 ;;; gildea@lcs.mit.edu says it's not desirable to put kills
 570 ;;; in the clipboard.
 571 (defun x-select-text (text &optional push)
 572   ;; Don't send the cut buffer too much text.
 573   ;; It becomes slow, and if really big it causes errors.
 574   (if (< (length text) x-cut-buffer-max)
 575       (x-set-cut-buffer text push)
 576     (x-set-cut-buffer "" push))
 577   (x-set-selection 'PRIMARY text)
 578   (if x-select-enable-clipboard
 579       (x-set-selection 'CLIPBOARD text))
 580   (setq x-last-selected-text text))
 581
 582 ;;; Return the value of the current X selection.
 583 ;;; Consult the selection, then the cut buffer.  Treat empty strings
 584 ;;; as if they were unset.
 585 ;;; If this function is called twice and finds the same text,
 586 ;;; it returns nil the second time.  This is so that a single
 587 ;;; selection won't be added to the kill ring over and over.
 588 (defun x-cut-buffer-or-selection-value ()
 589   (let (text)
 590     (when x-select-enable-clipboard
 591       (if (null text)
 592           (condition-case c
 593               (setq text (x-get-selection 'CLIPBOARD 'COMPOUND_TEXT))
 594             (error nil)))
 595       (if (null text)
 596           (condition-case c
 597               (setq text (x-get-selection 'CLIPBOARD 'STRING))
 598             (error nil)))
 599       (if (string= text "") (setq text nil)))
 600
 601     ;; Don't die if x-get-selection signals an error.
 602     (if (null text)
 603         (condition-case c
 604             (setq text (x-get-selection 'PRIMARY 'COMPOUND_TEXT))
 605           (error nil)))
 606     (if (null text)
 607         (condition-case c
 608             (setq text (x-get-selection 'PRIMARY 'STRING))
 609           (error nil)))
 610     (if (string= text "") (setq text nil))
 611
 612     (or text (setq text (x-get-cut-buffer 0)))
 613     (if (string= text "") (setq text nil))
 614
 615     (cond
 616      ((not text) nil)
 617      ((eq text x-last-selected-text) nil)
 618      ((string= text x-last-selected-text)
 619       ;; Record the newer string, so subsequent calls can use the `eq' test.
 620       (setq x-last-selected-text text)
 621       nil)
 622      (t
 623       (setq x-last-selected-text text)))))
 624
 625 \f
 626 ;;; Do the actual X Windows setup here; the above code just defines
 627 ;;; functions and variables that we use now.
 628
 629 (setq command-line-args (x-handle-args command-line-args))
 630
 631 ;;; Make sure we have a valid resource name.
 632 (or (stringp x-resource-name)
 633     (let (i)
 634       (setq x-resource-name (invocation-name))
 635
 636       ;; Change any . or * characters in x-resource-name to hyphens,
 637       ;; so as not to choke when we use it in X resource queries.
 638       (while (setq i (string-match "[.*]" x-resource-name))
 639         (aset x-resource-name i ?-))))
 640
 641 ;; For the benefit of older Emacses (19.27 and earlier) that are sharing
 642 ;; the same lisp directory, don't pass the third argument unless we seem
 643 ;; to have the multi-display support.
 644 (if (fboundp 'x-close-connection)
 645     (x-open-connection (or x-display-name
 646                            (setq x-display-name (getenv "DISPLAY")))
 647                        x-command-line-resources
 648                        ;; Exit Emacs with fatal error if this fails.
 649                        t)
 650   (x-open-connection (or x-display-name
 651                          (setq x-display-name (getenv "DISPLAY")))
 652                      x-command-line-resources))
 653
 654 (setq frame-creation-function 'x-create-frame-with-faces)
 655
 656 (setq x-cut-buffer-max (min (- (/ (x-server-max-request-size) 2) 100)
 657                             x-cut-buffer-max))
 658
 659 (if (fboundp 'new-fontset)
 660     (progn
 661       ;; Create the standard fontset.
 662       (create-fontset-from-fontset-spec standard-fontset-spec t)
 663
 664       ;; Create fontset specified in X resources "Fontset-N" (N is 0, 1, ...).
 665       (create-fontset-from-x-resource)
 666
 667       ;; Try to create a fontset from a font specification which comes
 668       ;; from initial-frame-alist, default-frame-alist, or X resource.
 669       ;; A font specification in command line argument (i.e. -fn XXXX)
 670       ;; should be already in default-frame-alist as a `font'
 671       ;; parameter.  However, any font specifications in site-start
 672       ;; library, user's init file (.emacs), and default.el are not
 673       ;; yet handled here.
 674
 675       (let ((font (or (cdr (assq 'font initial-frame-alist))
 676                       (cdr (assq 'font default-frame-alist))
 677                       (x-get-resource "font" "Font")))
 678             xlfd-fields resolved-name)
 679         (if (and font
 680                  (not (query-fontset font))
 681                  (setq resolved-name (x-resolve-font-name font))
 682                  (setq xlfd-fields (x-decompose-font-name font)))
 683             (if (string= "fontset"
 684                          (aref xlfd-fields xlfd-regexp-registry-subnum))
 685                 (new-fontset font (x-complement-fontset-spec xlfd-fields nil))
 686               ;; Create a fontset from FONT.  The fontset name is
 687               ;; generated from FONT.  Create style variants of the
 688               ;; fontset too.  Font names in the variants are
 689               ;; generated automatially unless X resources
 690               ;; XXX.attribyteFont explicitly specify them.
 691               (let ((styles (mapcar 'car x-style-funcs-alist))
 692                     (faces '(bold italic bold-italic))
 693                     face face-font fontset fontset-spec)
 694                 (while faces
 695                   (setq face (car faces))
 696                   (setq face-font (x-get-resource (concat (symbol-name face)
 697                                                           ".attributeFont")
 698                                                   "Face.AttributeFont"))
 699                   (if face-font
 700                       (setq styles (cons (cons face face-font)
 701                                          (delq face styles))))
 702                   (setq faces (cdr faces)))
 703                 (aset xlfd-fields xlfd-regexp-foundry-subnum nil)
 704                 (aset xlfd-fields xlfd-regexp-family-subnum nil)
 705                 (aset xlfd-fields xlfd-regexp-registry-subnum "fontset")
 706                 (aset xlfd-fields xlfd-regexp-encoding-subnum "startup")
 707                 ;; The fontset name should have concrete values in
 708                 ;; weight and slant field.
 709                 (let ((weight (aref xlfd-fields xlfd-regexp-weight-subnum))
 710                       (slant (aref xlfd-fields xlfd-regexp-slant-subnum))
 711                       xlfd-temp)
 712                   (if (and (or (not weight) (string-match "[*?]*" weight))
 713                            (setq xlfd-temp
 714                                  (x-decompose-font-name resolved-name)))
 715                       (aset xlfd-fields xlfd-regexp-weight-subnum
 716                             (aref xlfd-temp xlfd-regexp-weight-subnum)))
 717                   (if (and (or (not slant) (string-match "[*?]*" slant))
 718                            (or xlfd-temp
 719                                (setq xlfd-temp
 720                                      (x-decompose-font-name resolved-name))))
 721                       (aset xlfd-fields xlfd-regexp-slant-subnum
 722                             (aref xlfd-temp xlfd-regexp-slant-subnum))))
 723                 (setq fontset (x-compose-font-name xlfd-fields))
 724                 (create-fontset-from-fontset-spec
 725                  (concat fontset ", ascii:" font) styles)
 726                 ))))))
 727
 728 ;; Sun expects the menu bar cut and paste commands to use the clipboard.
 729 ;; This has ,? to match both on Sunos and on Solaris.
 730 (if (string-match "Sun Microsystems,? Inc\\."
 731                   (x-server-vendor))
 732     (menu-bar-enable-clipboard))
 733
 734 ;; Apply a geometry resource to the initial frame.  Put it at the end
 735 ;; of the alist, so that anything specified on the command line takes
 736 ;; precedence.
 737 (let* ((res-geometry (x-get-resource "geometry" "Geometry"))
 738        parsed)
 739   (if res-geometry
 740       (progn
 741         (setq parsed (x-parse-geometry res-geometry))
 742         ;; If the resource specifies a position,
 743         ;; call the position and size "user-specified".
 744         (if (or (assq 'top parsed) (assq 'left parsed))
 745             (setq parsed (cons '(user-position . t)
 746                                (cons '(user-size . t) parsed))))
 747         ;; All geometry parms apply to the initial frame.
 748         (setq initial-frame-alist (append initial-frame-alist parsed))
 749         ;; The size parms apply to all frames.
 750         (if (assq 'height parsed)
 751             (setq default-frame-alist
 752                   (cons (cons 'height (cdr (assq 'height parsed)))
 753                         default-frame-alist)))
 754         (if (assq 'width parsed)
 755             (setq default-frame-alist
 756                   (cons (cons 'width (cdr (assq 'width parsed)))
 757                         default-frame-alist))))))
 758
 759 ;; Check the reverseVideo resource.
 760 (let ((case-fold-search t))
 761   (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
 762     (if (and rv
 763              (string-match "^\\(true\\|yes\\|on\\)$" rv))
 764         (setq default-frame-alist
 765               (cons '(reverse . t) default-frame-alist)))))
 766
 767 ;; Set x-selection-timeout, measured in milliseconds.
 768 (let ((res-selection-timeout
 769        (x-get-resource "selectionTimeout" "SelectionTimeout")))
 770   (setq x-selection-timeout 20000)
 771   (if res-selection-timeout
 772       (setq x-selection-timeout (string-to-number res-selection-timeout))))
 773
 774 (defun x-win-suspend-error ()
 775   (error "Suspending an emacs running under X makes no sense"))
 776 (add-hook 'suspend-hook 'x-win-suspend-error)
 777
 778 ;;; Arrange for the kill and yank functions to set and check the clipboard.
 779 (setq interprogram-cut-function 'x-select-text)
 780 (setq interprogram-paste-function 'x-cut-buffer-or-selection-value)
 781
 782 ;;; Turn off window-splitting optimization; X is usually fast enough
 783 ;;; that this is only annoying.
 784 (setq split-window-keep-point t)
 785
 786 ;; Don't show the frame name; that's redundant with X.
 787 (setq-default mode-line-frame-identification "  ")
 788
 789 ;;; Motif direct handling of f10 wasn't working right,
 790 ;;; So temporarily we've turned it off in lwlib-Xm.c
 791 ;;; and turned the Emacs f10 back on.
 792 ;;; ;; Motif normally handles f10 itself, so don't try to handle it a second time.
 793 ;;; (if (featurep 'motif)
 794 ;;;     (global-set-key [f10] 'ignore))
 795
 796 ;;; x-win.el ends here