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250 lines
10 KiB
EmacsLisp
250 lines
10 KiB
EmacsLisp
;;; pc-win.el --- setup support for `PC windows' (whatever that is)
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;; Copyright (C) 1994, 1996, 1997, 1999, 2001, 2002, 2003, 2004,
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;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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;; Author: Morten Welinder <terra@diku.dk>
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;; Maintainer: FSF
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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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(load "term/internal" nil t)
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(declare-function msdos-remember-default-colors "msdos.c")
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(declare-function w16-set-clipboard-data "w16select.c")
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(declare-function w16-get-clipboard-data "w16select.c")
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;;; This is copied from etc/rgb.txt, except that some values were changed
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;;; a bit to make them consistent with DOS console colors, and the RGB
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;;; values were scaled up to 16 bits, as `tty-define-color' requires.
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;;;
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;;; The mapping between the 16 standard EGA/VGA colors and X color names
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;;; was done by running a Unix version of Emacs inside an X client and a
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;;; DJGPP-compiled Emacs on the same PC. The names of X colors used to
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;;; define the pixel values are shown as comments to each color below.
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;;;
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;;; If you want to change the RGB values, keep in mind that various pieces
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;;; of Emacs think that a color whose RGB values add up to less than 0.6 of
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;;; the values for WHITE (i.e. less than 117963) are ``dark'', otherwise the
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;;; color is ``light''; see `frame-set-background-mode' in lisp/faces.el for
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;;; an example.
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(defvar msdos-color-values
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'(("black" 0 0 0 0)
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("blue" 1 0 0 52480) ; MediumBlue
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("green" 2 8704 35584 8704) ; ForestGreen
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("cyan" 3 0 52736 53504) ; DarkTurquoise
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("red" 4 45568 8704 8704) ; FireBrick
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("magenta" 5 35584 0 35584) ; DarkMagenta
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("brown" 6 40960 20992 11520) ; Sienna
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("lightgray" 7 48640 48640 48640) ; Gray
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("darkgray" 8 26112 26112 26112) ; Gray40
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("lightblue" 9 0 0 65535) ; Blue
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("lightgreen" 10 0 65535 0) ; Green
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("lightcyan" 11 0 65535 65535) ; Cyan
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("lightred" 12 65535 0 0) ; Red
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("lightmagenta" 13 65535 0 65535) ; Magenta
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("yellow" 14 65535 65535 0) ; Yellow
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("white" 15 65535 65535 65535))
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"A list of MS-DOS console colors, their indices and 16-bit RGB values.")
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;; ---------------------------------------------------------------------------
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;; We want to delay setting frame parameters until the faces are setup
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(defvar default-frame-alist nil)
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(modify-frame-parameters terminal-frame default-frame-alist)
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(tty-color-clear)
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(defun msdos-face-setup ()
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(set-face-foreground 'bold "yellow" terminal-frame)
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(set-face-foreground 'italic "red" terminal-frame)
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(set-face-foreground 'bold-italic "lightred" terminal-frame)
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(set-face-foreground 'underline "white" terminal-frame)
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(make-face 'msdos-menu-active-face)
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(make-face 'msdos-menu-passive-face)
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(make-face 'msdos-menu-select-face)
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(set-face-foreground 'msdos-menu-active-face "white" terminal-frame)
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(set-face-foreground 'msdos-menu-passive-face "lightgray" terminal-frame)
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(set-face-background 'msdos-menu-active-face "blue" terminal-frame)
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(set-face-background 'msdos-menu-passive-face "blue" terminal-frame)
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(set-face-background 'msdos-menu-select-face "red" terminal-frame))
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(add-hook 'before-init-hook 'msdos-face-setup)
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(defun msdos-handle-reverse-video (frame parameters)
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"Handle the reverse-video frame parameter on MS-DOS frames."
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(when (cdr (or (assq 'reverse parameters)
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(assq 'reverse default-frame-alist)))
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(let* ((params (frame-parameters frame))
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(fg (cdr (assq 'foreground-color params)))
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(bg (cdr (assq 'background-color params))))
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(if (equal fg (cdr (assq 'mouse-color params)))
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(modify-frame-parameters frame
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(list (cons 'mouse-color bg))))
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(if (equal fg (cdr (assq 'cursor-color params)))
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(modify-frame-parameters frame
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(list (cons 'cursor-color bg)))))))
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;; This must run after all the default colors are inserted into
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;; tty-color-alist, since msdos-handle-reverse-video needs to know the
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;; actual frame colors. tty-color-alist is set up by startup.el, but
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;; only after it runs before-init-hook and after-init-hook.
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(defun msdos-setup-initial-frame ()
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(modify-frame-parameters terminal-frame default-frame-alist)
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;; This remembers the screen colors after applying default-frame-alist,
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;; so that all subsequent frames could begin with those colors.
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(msdos-remember-default-colors terminal-frame)
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(modify-frame-parameters terminal-frame initial-frame-alist)
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(msdos-handle-reverse-video terminal-frame
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(frame-parameters terminal-frame))
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(frame-set-background-mode terminal-frame)
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(face-set-after-frame-default terminal-frame))
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(add-hook 'term-setup-hook 'msdos-setup-initial-frame)
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;; We create frames as if we were a terminal, but with a twist.
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(defun make-msdos-frame (&optional parameters)
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(let ((frame (make-terminal-frame parameters))
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success)
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(unwind-protect
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(progn
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(msdos-handle-reverse-video frame (frame-parameters frame))
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(frame-set-background-mode frame)
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(face-set-after-frame-default frame)
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(setq success t))
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(unless success (delete-frame frame)))
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frame))
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(add-to-list 'frame-creation-function-alist '(pc . make-msdos-frame))
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;; ---------------------------------------------------------------------------
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;; More or less useful imitations of certain X-functions. A lot of the
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;; values returned are questionable, but usually only the form of the
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;; returned value matters. Also, by the way, recall that `ignore' is
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;; a useful function for returning 'nil regardless of argument.
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;; From src/xfns.c
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(defun x-list-fonts (pattern &optional face frame maximum width)
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(if (or (null width) (and (numberp width) (= width 1)))
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(list "ms-dos")
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(list "no-such-font")))
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(defun x-display-pixel-width (&optional frame) (frame-width frame))
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(defun x-display-pixel-height (&optional frame) (frame-height frame))
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(defun x-display-planes (&optional frame) 4) ;bg switched to 16 colors as well
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(defun x-display-color-cells (&optional frame) 16)
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(defun x-server-max-request-size (&optional frame) 1000000) ; ???
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(defun x-server-vendor (&optional frame) t "GNU")
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(defun x-server-version (&optional frame) '(1 0 0))
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(defun x-display-screens (&optional frame) 1)
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(defun x-display-mm-height (&optional frame) 245) ; Guess the size of my
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(defun x-display-mm-width (&optional frame) 322) ; monitor, EZ...
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(defun x-display-backing-store (&optional frame) 'not-useful)
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(defun x-display-visual-class (&optional frame) 'static-color)
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(fset 'x-display-save-under 'ignore)
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(fset 'x-get-resource 'ignore)
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;; From lisp/term/x-win.el
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(defvar x-display-name "pc"
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"The display name specifying the MS-DOS display and frame type.")
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(setq split-window-keep-point t)
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(defvar x-colors (mapcar 'car msdos-color-values)
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"The list of colors available on a PC display under MS-DOS.")
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;; From lisp/term/w32-win.el
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;
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;;;; Selections and cut buffers
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;
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;;; We keep track of the last text selected here, so we can check the
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;;; current selection against it, and avoid passing back our own text
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;;; from x-cut-buffer-or-selection-value.
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(defvar x-last-selected-text nil)
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(defcustom x-select-enable-clipboard t
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"Non-nil means cutting and pasting uses the clipboard.
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This is the default on this system, since MS-Windows does not
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support other types of selections."
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:type 'boolean
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:group 'killing)
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(defun x-select-text (text &optional push)
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(if x-select-enable-clipboard
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(w16-set-clipboard-data text))
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(setq x-last-selected-text text))
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;;; Return the value of the current selection.
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;;; Consult the selection, then the cut buffer. Treat empty strings
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;;; as if they were unset.
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(defun x-get-selection-value ()
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(if x-select-enable-clipboard
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(let (text)
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;; Don't die if x-get-selection signals an error.
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(condition-case c
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(setq text (w16-get-clipboard-data))
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(error (message "w16-get-clipboard-data:%s" c)))
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(if (string= text "") (setq text nil))
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(cond
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((not text) nil)
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((eq text x-last-selected-text) nil)
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((string= text x-last-selected-text)
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;; Record the newer string, so subsequent calls can use the 'eq' test.
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(setq x-last-selected-text text)
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nil)
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(t
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(setq x-last-selected-text text))))))
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;;; Arrange for the kill and yank functions to set and check the clipboard.
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(setq interprogram-cut-function 'x-select-text)
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(setq interprogram-paste-function 'x-get-selection-value)
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;; From lisp/faces.el: we only have one font, so always return
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;; it, no matter which variety they've asked for.
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(defun x-frob-font-slant (font which)
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font)
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(make-obsolete 'x-frob-font-slant 'make-face-... "21.1")
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(defun x-frob-font-weight (font which)
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font)
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(make-obsolete 'x-frob-font-weight 'make-face-... "21.1")
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(defun x-font-family-list ()
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"Return a list of available font families on FRAME.\n\
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If FRAME is omitted or nil, use the selected frame.\n\
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Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
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is a font family, and FIXED-P is non-nil if fonts of that family\n\
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are fixed-pitch."
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'(("default" . t)))
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;; From src/fontset.c:
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(fset 'query-fontset 'ignore)
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;; From lisp/term/x-win.el: make iconify-or-deiconify-frame a no-op.
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(fset 'iconify-or-deiconify-frame 'ignore)
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;; From lisp/frame.el
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(fset 'set-default-font 'ignore)
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(fset 'set-mouse-color 'ignore) ; We cannot, I think.
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(fset 'set-cursor-color 'ignore) ; Hardware determined by char under.
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(fset 'set-border-color 'ignore) ; Not useful.
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;; ---------------------------------------------------------------------------
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;;; arch-tag: 5cbdb455-b495-427b-95d0-e417d77d00b4
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;;; pc-win.el ends here
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