(msdos-create-frame-with-faces): Renamed from make-msdos-frame.
(terminal-init-internal): New function, errors out if called. (msdos-initialize-window-system): New function. (msdos-create-frame-with-faces): Set the terminal's `terminal-initted' (sic!) parameter. (frame-creation-function-alist): Add msdos-create-frame-with-faces. (window-system-initialization-alist): Add msdos-initialize-window-system. (handle-args-function-alist): Use tty-handle-args for `pc' ``window system'' as well. (pc-win): Provide.
This commit is contained in:
Eli Zaretskii
parent
d8dbc0d041
commit
cbcc5ad47d
1 changed files with 106 additions and 19 deletions
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@ -23,15 +23,30 @@
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;;; Commentary:
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;; This file is preloaded into Emacs by loadup.el. The functions in
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;; this file are then called during startup from startup.el. This
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;; means that just loading this file should not have any side effects
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;; besides defining functions and variables, and in particular should
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;; NOT initialize any window systems.
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;; The main entry points to this file's features are msdos-handle-args,
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;; msdos-create-frame-with-faces, msdos-initialize-window-system,
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;; terminal-init-internal. The last one is not supposed to be called,
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;; so it just errors out.
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;;; Code:
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(if (not (fboundp 'msdos-remember-default-colors))
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(error "%s: Loading pc-win.el but not compiled for MS-DOS"
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(invocation-name)))
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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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;;; This was 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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@ -67,10 +82,10 @@
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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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;(modify-frame-parameters terminal-frame default-frame-alist)
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(defun msdos-face-setup ()
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"Set up initial faces for the MS-DOS display."
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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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@ -85,8 +100,6 @@
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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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@ -103,8 +116,7 @@
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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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;; actual frame colors.
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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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@ -117,23 +129,29 @@
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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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;; We create frames as if we were a terminal, but without invoking the
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;; terminal-initialization function. Also, our handling of reverse
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;; video is slightly different.
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(defun msdos-create-frame-with-faces (&optional parameters)
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"Create an frame on MS-DOS display.
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Optional frame parameters PARAMETERS specify the frame parameters.
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Parameters not specified by PARAMETERS are taken from
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`default-frame-alist'. If either PARAMETERS or `default-frame-alist'
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contains a `reverse' parameter, handle that. Value is the new frame
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created."
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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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(with-selected-frame frame
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(msdos-handle-reverse-video frame (frame-parameters frame))
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(unless (terminal-parameter frame 'terminal-initted)
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(set-terminal-parameter frame 'terminal-initted t))
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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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@ -163,7 +181,6 @@
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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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@ -209,10 +226,6 @@ support other types of selections."
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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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@ -241,7 +254,81 @@ are fixed-pitch."
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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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;; Initialization.
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;; ---------------------------------------------------------------------------
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;; This function is run, by faces.el:tty-create-frame-with-faces, only
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;; for the initial frame (on each terminal, but we have only one).
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;; This works by setting the `terminal-initted' terminal parameter to
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;; this function, the first time `tty-create-frame-with-faces' is
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;; called on that terminal. `tty-create-frame-with-faces' is called
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;; directly from startup.el and also by `make-frame' through
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;; `frame-creation-function-alist'. `make-frame' will call this
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;; function if `msdos-create-frame-with-faces' (see below) is not
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;; found in `frame-creation-function-alist', which means something is
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;; _very_ wrong, because "internal" terminal emulator should not be
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;; turned on if our window-system is not `pc'. Therefore, the only
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;; Right Thing for us to do here is scream bloody murder.
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(defun terminal-init-internal ()
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"Terminal initialization function for the MS-DOS \"internal\" terminal.
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Errors out because it is not supposed to be called, ever."
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(error "terminal-init-internal called for window-system `%s'"
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(window-system)))
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(defun msdos-initialize-window-system ()
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"Initialization function for the `pc' \"window system\"."
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(or (eq (window-system) 'pc)
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(error
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"`msdos-initialize-window-system' called, but window-system is `%s'"
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(window-system)))
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;; First, the keyboard.
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(msdos-setup-keyboard terminal-frame) ; see internal.el
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;; Next, register the default colors.
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(let* ((colors msdos-color-values)
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(color (car colors)))
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(tty-color-clear)
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(while colors
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(tty-color-define (car color) (cadr color) (cddr color))
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(setq colors (cdr colors) color (car colors))))
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;; Modifying color mappings means realized faces don't
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;; use the right colors, so clear them.
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(clear-face-cache)
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;; Now set up some additional faces.
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(msdos-face-setup)
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;; Set up the initial frame.
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(msdos-setup-initial-frame)
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;; We want to delay the codepage-related setup until after user's
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;; .emacs is processed, because people might define their
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;; `dos-codepage-setup-hook' there.
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(add-hook 'after-init-hook 'dos-codepage-setup)
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;; In multibyte mode, we want unibyte buffers to be displayed
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;; using the terminal coding system, so that they display
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;; correctly on the DOS terminal; in unibyte mode we want to see
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;; all 8-bit characters verbatim. In both cases, we want the
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;; entire range of 8-bit characters to arrive at our display code
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;; verbatim.
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(standard-display-8bit 127 255)
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;; We are fast enough to make this optimization unnecessary.
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(setq split-window-keep-point t)
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;; Arrange for the kill and yank functions to set and check the
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;; 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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(menu-bar-enable-clipboard)
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(run-hooks 'terminal-init-msdos-hook))
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;; frame-creation-function-alist is examined by frame.el:make-frame.
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(add-to-list 'frame-creation-function-alist
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'(pc . msdos-create-frame-with-faces))
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;; window-system-initialization-alist is examined by startup.el:command-line.
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(add-to-list 'window-system-initialization-alist
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'(pc . msdos-initialize-window-system))
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;; We don't need anything beyond tty-handle-args for handling
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;; command-line argument; see startup.el.
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(add-to-list 'handle-args-function-alist '(pc . tty-handle-args))
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;; ---------------------------------------------------------------------------
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(provide 'pc-win)
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;; arch-tag: 5cbdb455-b495-427b-95d0-e417d77d00b4
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;;; pc-win.el ends here
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