157 lines
5.0 KiB
Scheme
157 lines
5.0 KiB
Scheme
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;;;
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;;; Copyright (c) 1985 Massachusetts Institute of Technology
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;;;
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;;; This material was developed by the Scheme project at the
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;;; Massachusetts Institute of Technology, Department of
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;;; Electrical Engineering and Computer Science. Permission to
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;;; copy this software, to redistribute it, and to use it for any
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;;; purpose is granted, subject to the following restrictions and
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;;; understandings.
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;;;
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;;; 1. Any copy made of this software must include this copyright
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;;; notice in full.
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;;;
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;;; 2. Users of this software agree to make their best efforts (a)
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;;; to return to the MIT Scheme project any improvements or
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;;; extensions that they make, so that these may be included in
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;;; future releases; and (b) to inform MIT of noteworthy uses of
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;;; this software.
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;;;
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;;; 3. All materials developed as a consequence of the use of
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;;; this software shall duly acknowledge such use, in accordance
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;;; with the usual standards of acknowledging credit in academic
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;;; research.
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;;;
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;;; 4. MIT has made no warrantee or representation that the
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;;; operation of this software will be error-free, and MIT is
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;;; under no obligation to provide any services, by way of
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;;; maintenance, update, or otherwise.
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;;;
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;;; 5. In conjunction with products arising from the use of this
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;;; material, there shall be no use of the name of the
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;;; Massachusetts Institute of Technology nor of any adaptation
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;;; thereof in any advertising, promotional, or sales literature
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;;; without prior written consent from MIT in each case.
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;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;
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;;; Modified by Texas Instruments Inc 8/15/85
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;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; miscellaneous routine for windows
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(define save-console-contents
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(lambda ()
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(set! *pcs-contents* (%save-window 'console))))
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(define restore-console-contents
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(lambda ()
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(let ((cursor-x (%reify-port 'console 1))
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(cursor-y (%reify-port 'console 0)))
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(%clear-window 'console)
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(%reify-port! 'console 1 cursor-x)
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(%reify-port! 'console 0 cursor-y)
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(%restore-window 'console *pcs-contents*))))
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(define make-pcs-status-invisible
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(lambda ()
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(%reify-port! pcs-status-window 11
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(%logand (%reify-port pcs-status-window 11) -9))))
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(define make-pcs-status-visible
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(lambda ()
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(%reify-port! pcs-status-window 11
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(%logior (%reify-port pcs-status-window 11) 8))))
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(define move-editor-to-upper-half
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(lambda ()
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(%reify-port! buffer-screen 4 11)
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(%reify-port! modeline-screen 2 11)
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(%reify-port! typein-screen 2 12)))
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(define move-editor-to-full
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(lambda ()
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(%reify-port! buffer-screen 4 23)
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(%reify-port! modeline-screen 2 23)
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(%reify-port! typein-screen 2 24)))
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(define move-pcs-window-lower
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(lambda ()
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(%reify-port! 'console 2 13)
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(%reify-port! 'console 4 11)))
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(define move-pcs-to-full
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(lambda ()
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(%reify-port! 'console 2 0)
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(%reify-port! 'console 4 24)))
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(begin
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(define-integrable editor:name 0)
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(define-integrable editor:buffer-window 1)
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(define-integrable editor:bufferset 2)
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(define-integrable editor:kill-ring 3)
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(define-integrable editor-bufferset
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(lambda (editor)
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(vector-ref editor editor:bufferset)))
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(define-integrable editor-kill-ring
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(lambda (editor)
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(vector-ref editor editor:kill-ring)))
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(define-integrable editor-buffer-window
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(lambda (editor)
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(vector-ref editor editor:buffer-window)))
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(define-integrable editor-name
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(lambda (editor)
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(vector-ref editor editor:name)))
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(define-integrable current-buffer-set
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(lambda()
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(editor-bufferset edwin-editor)))
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(define-integrable current-kill-ring
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(lambda ()
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(editor-kill-ring edwin-editor)))
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(define-integrable current-buffer-window
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(lambda ()
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(editor-buffer-window edwin-editor)))
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)
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;;; screens
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(define make-screen
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(lambda (xl yl lin col)
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(let ((window (%make-window'())))
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(%reify-port! window 2 yl)
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(%reify-port! window 3 xl)
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(%reify-port! window 4 lin)
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(%reify-port! window 5 col)
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(%reify-port! window 8
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(%logand -2 (%reify-port window 8)))
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window)))
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(define buffer-screen (make-screen 0 0 23 80))
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(define modeline-screen
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(let ((screen (make-screen 0 23 1 80)))
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(%reify-port! screen 7 (if (= pcs-machine-type 1) 28 120))))
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(define typein-screen (make-screen 0 24 1 80))
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(define blank-screen (make-screen 0 0 24 80))
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;;; editor
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(define initial-buffer-name "Main")
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(define make-editor
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(lambda (name)
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(let ((vec (make-vector 4))
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(init-buffer (make-buffer initial-buffer-name)))
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(let ((bufferset (make-bufferset init-buffer)))
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(vector-set! vec editor:name name)
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(vector-set! vec editor:buffer-window
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(make-buffer-window buffer-screen init-buffer))
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(vector-set! vec editor:bufferset bufferset)
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(vector-set! vec editor:kill-ring (make-ring 10))
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vec))))
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