%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Screen-Layout.SL
%
% Author: Alan Snyder
% Hewlett-Packard/CRC
% Date: 19 August 1982
% Revised: 18 February 1983
%
% This file contains functions that manage the screen layout for NMODE.
%
% 18-Feb-83 Alan Snyder
% Add new function: find-buffer-in-exposed-windows.
% 16-Feb-83 Alan Snyder
% Declare -> Declare-Flavor.
% 7-Feb-83 Alan Snyder
% Revise handling of refresh breakout to allow refresh-one-window to work.
% 31-Jan-83 Alan Snyder
% Revise for new interpretation of argument to buffer-window$set-size.
% Make input window an unlabeled buffer-window.
% 27-Jan-83 Alan Snyder
% Added (optional) softkey label screen.
% 7-Jan-83 Alan Snyder
% Change ENTER-RAW-MODE to not touch the other screen unless we are in
% two-screen mode.
% 6-Jan-83 Alan Snyder
% Change NMODE-SELECT-MAJOR-WINDOW to also deexpose input window.
% 30-Dec-82 Alan Snyder
% Added two-screen mode. Minor change to NMODE-SELECT-WINDOW to make
% things more graceful when using direct writing.
% 20-Dec-82 Alan Snyder
% Added declarations and made other small changes to improve efficiency by
% reducing the amount of run-time method lookup. Fixed efficiency bug in
% NMODE-NEW-TERMINAL: it failed to de-expose old screens and windows.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(BothTimes (load objects))
(CompileTime (load display-char))
% External variables used here:
(fluid '(
nmode-command-argument-given
nmode-command-argument
browser-split-screen
))
% Options:
(fluid '(
nmode-allow-refresh-breakout % Abort refresh if user types something
nmode-normal-enhancement % Display enhancement for normal text
nmode-inverse-enhancement % Display enhancement for "inverse video" text
))
% Global variables defined here:
(fluid '(
nmode-current-buffer % buffer that commands operate on
nmode-current-window % window displaying current buffer
nmode-major-window % the user's idea of nmode-current-window
nmode-layout-mode % either 1 or 2
nmode-two-screens? % T => each window has its own screen
nmode-input-window % window used for string input
nmode-message-screen % screen displaying NMODE "message"
nmode-prompt-screen % screen displaying NMODE "prompt"
nmode-main-buffer % buffer "MAIN"
nmode-output-buffer % buffer "OUTPUT" (used for PSL output)
nmode-input-buffer % internal buffer used for string input
nmode-softkey-label-screen % screen displaying softkey labels (or NIL)
nmode-terminal % the terminal object
nmode-physical-screen % the physical screen object
nmode-screen % the shared screen object
nmode-other-terminal % the other terminal object (two-screen mode)
nmode-other-physical-screen % the other physical screen object
nmode-other-screen % the other shared screen object
))
% Internal static variables:
(fluid '(
nmode-top-window % the top or full major window
nmode-bottom-window % the bottom major window
full-refresh-needed % next refresh should clear the screen first
nmode-breakout-occurred? % last refresh was interrupted
nmode-total-lines % total number of screen lines for window(s)
nmode-top-lines % number of screen lines for top window
nmode-inverse-video? % Display using "inverse video"
nmode-blank-screen % blank screen used to clear the display
))
(declare-flavor buffer-window
nmode-current-window
nmode-top-window nmode-bottom-window nmode-input-window)
(declare-flavor virtual-screen
nmode-blank-screen)
(declare-flavor shared-physical-screen
nmode-screen
nmode-other-screen)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Initialization Function:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de nmode-initialize-screen-layout ()
% This function is called as part of NMODE initialization, which occurs
% before NMODE is saved.
(setf nmode-allow-refresh-breakout T)
(setf nmode-normal-enhancement (dc-make-enhancement-mask))
(setf nmode-inverse-enhancement
(dc-make-enhancement-mask INVERSE-VIDEO INTENSIFY))
(setf nmode-inverse-video? NIL)
(nmode-default-terminal)
)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Functions for changing the screen layout:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de nmode-1-window ()
(nmode-expand-top-window)
)
(de nmode-expand-top-window ()
% This function does nothing if already in 1-window mode.
% Otherwise: expands the top window to fill the screen; the top window
% becomes current.
(when (not (= nmode-layout-mode 1))
(nmode-select-window nmode-top-window)
(=> nmode-bottom-window deexpose)
(setf nmode-layout-mode 1)
(nmode-set-window-sizes)
))
(de nmode-expand-bottom-window ()
% This function does nothing if already in 1-window mode.
% Otherwise: expands the bottom window to fill the screen; the bottom
% window becomes current.
(when (not (= nmode-layout-mode 1))
(psetf nmode-top-window nmode-bottom-window
nmode-bottom-window nmode-top-window)
(nmode-expand-top-window)
))
(de nmode-2-windows ()
% This function does nothing if already in 2-window mode.
% Otherwise: shrinks the top window and exposes the bottom window.
(cond
((not (= nmode-layout-mode 2))
(setf nmode-layout-mode 2)
(nmode-set-window-sizes)
)))
(de nmode-set-window-position (p)
(selectq p
(FULL (nmode-1-window))
(TOP (nmode-2-windows) (nmode-select-window nmode-top-window))
(BOTTOM (nmode-2-windows) (nmode-select-window nmode-bottom-window))
))
(de nmode-exchange-windows ()
% Exchanges the current window with the other window, which becomes current.
% In two window mode, the windows swap physical positions.
(let ((w (nmode-other-window)))
(psetf nmode-top-window nmode-bottom-window
nmode-bottom-window nmode-top-window)
(nmode-set-window-sizes)
(nmode-select-window w)
))
(de nmode-grow-window (n)
% Increase (decrease if n<0) the size of the current window by N lines.
% Does nothing and returns NIL if not in 2-window mode.
(selectq (nmode-window-position)
(FULL
NIL
)
(TOP
(setf nmode-top-lines (+ nmode-top-lines n))
(nmode-set-window-sizes)
T
)
(BOTTOM
(setf nmode-top-lines (- nmode-top-lines n))
(nmode-set-window-sizes)
T
)))
(de nmode-expose-output-buffer (b)
% Buffer B is being used as an output channel. It is not currently being
% displayed. Cause it to be displayed (in the "other window", if we
% are already in 2-window mode, in the bottom window otherwise).
(nmode-2-windows)
(window-select-buffer (nmode-other-window) b)
)
(de nmode-normal-video ()
% Cause the display to use "normal" video polarity.
(when nmode-inverse-video?
(setf nmode-inverse-video? NIL)
(nmode-establish-video-polarity)
))
(de nmode-inverse-video ()
% Cause the display to use "inverse" video polarity.
(when (not nmode-inverse-video?)
(setf nmode-inverse-video? T)
(nmode-establish-video-polarity)
))
(de nmode-invert-video ()
% Toggle between normal and inverse video.
(setf nmode-inverse-video? (not nmode-inverse-video?))
(nmode-establish-video-polarity)
)
(de nmode-use-two-screens ()
% If two screens are available, use them both.
(when (and nmode-other-screen (not nmode-two-screens?))
(when (not (=> nmode-other-terminal raw-mode))
(=> nmode-other-terminal enter-raw-mode)
(setf full-refresh-needed t)
)
(setf nmode-two-screens? T)
(setf browser-split-screen T)
(setf nmode-layout-mode 2)
(nmode-set-window-sizes)
))
(de nmode-use-one-screen ()
% Use only the main screen.
(when nmode-two-screens?
(setf nmode-two-screens? NIL)
(nmode-set-window-sizes)
(if nmode-other-screen (=> nmode-other-screen refresh)) % clear it
))
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Screen Layout Commands:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de one-window-command ()
% The "C-X 1" command. Return to one window mode.
(when (not (= nmode-layout-mode 1))
(if nmode-command-argument-given
(nmode-expand-bottom-window)
(nmode-expand-top-window)
)))
(de two-windows-command ()
% The "C-X 2" command. The bottom window is selected.
(when (not (= nmode-layout-mode 2))
(nmode-2-windows)
(if nmode-command-argument-given
(window-copy-buffer nmode-top-window nmode-bottom-window))
(nmode-switch-windows)
))
(de view-two-windows-command ()
% The "C-X 3" command. The top window remains selected.
(when (not (= nmode-layout-mode 2))
(nmode-2-windows)
(if nmode-command-argument-given
(window-copy-buffer nmode-top-window nmode-bottom-window))
))
(de grow-window-command ()
(if (not (nmode-grow-window nmode-command-argument))
(nmode-error "Not in 2-window mode!")
))
(de other-window-command ()
(let ((old-buffer nmode-current-buffer))
(nmode-switch-windows)
(if nmode-command-argument-given
(buffer-select old-buffer))
))
(de exchange-windows-command ()
(selectq nmode-layout-mode
(1 (Ding))
(2 (nmode-exchange-windows))
))
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Window Selection Functions:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de nmode-select-window (window)
% Expose the specified window and make it the "current" window.
% Its buffer becomes the "current" buffer. This is the only function that
% should set the variable "NMODE-CURRENT-WINDOW".
(when (not (eq window nmode-current-window))
(if nmode-current-window (=> nmode-current-window deselect))
(when (not (eq window nmode-input-window))
(setf nmode-major-window window)
(when (not (eq nmode-current-window nmode-input-window))
(reset-message)
))
(setf nmode-current-window window)
(=> window expose)
(=> window select)
(setf nmode-current-buffer (=> window buffer))
(nmode-establish-current-mode)
))
(de nmode-switch-windows ()
% Select the "other" window.
(selectq nmode-layout-mode
(2 (nmode-select-window (nmode-other-window)))
(1 (nmode-exchange-windows))
))
(de nmode-select-major-window ()
% This function is used for possible error recovery. It ensures that the
% current window is one of the exposed major windows (not, for example, the
% INPUT window) and that the INPUT window is deexposed.
(if (not (or (eq nmode-current-window nmode-top-window)
(eq nmode-current-window nmode-bottom-window)
))
(nmode-select-window nmode-top-window)
)
(=> nmode-input-window deexpose)
)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Screen Information Functions:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de nmode-window-position ()
(cond ((= nmode-layout-mode 1) 'FULL)
((eq nmode-current-window nmode-top-window) 'TOP)
(t 'BOTTOM)
))
(de nmode-other-window ()
% Return the "other" window.
(if (eq nmode-current-window nmode-top-window)
nmode-bottom-window
nmode-top-window
))
(de find-buffer-in-windows (b)
% Return a list containing the windows displaying the specified buffer.
% The windows may or may not be displayed.
(for (in w (list nmode-bottom-window nmode-top-window))
% Put bottom window first in this list so that it will be
% the one that is automatically adjusted on output if the
% output buffer is being displayed by both windows.
(when (eq b (=> w buffer)))
(collect w))
)
(de find-buffer-in-exposed-windows (b)
% Return a list containing the exposed windows displaying the specified
% buffer.
(for (in w (find-buffer-in-windows b))
(when (=> w exposed?))
(collect w))
)
(de buffer-is-displayed? (b)
% Return T if the specified buffer is being displayed by an active window.
(not
(for (in w (nmode-active-windows))
(never (eq b (=> w buffer)))
)))
(de nmode-active-windows ()
(selectq nmode-layout-mode
(1 (list nmode-top-window))
(2 (list nmode-top-window nmode-bottom-window))
))
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Typeout Functions:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de nmode-begin-typeout ()
% Call this function before doing typeout using the standard output channel.
% Someday this will do something clever, but for now it merely clears the
% screen.
(nmode-clear-screen)
)
(de nmode-end-typeout ()
% Call this function after doing typeout using the standard output channel.
% Someday this will do something clever, but for now it merely waits for
% the user to type a character.
(pause-until-terminal-input)
)
(de nmode-clear-screen ()
% This is somewhat of a hack to clear the screen for normal typeout. The
% next time a refresh is done, a full refresh will be done automatically.
(=> nmode-blank-screen expose)
(=> nmode-screen full-refresh NIL)
(setf full-refresh-needed t)
)
(de Enter-Raw-Mode ()
% Use this function to enter "raw mode", in which terminal input is not
% echoed and special terminal keys are enabled. The next REFRESH will
% automatically be a "full" refresh.
(when (not (=> nmode-terminal raw-mode))
(=> nmode-terminal enter-raw-mode)
(setf full-refresh-needed t)
)
(when (and nmode-two-screens?
nmode-other-terminal
(not (=> nmode-other-terminal raw-mode)))
(=> nmode-other-terminal enter-raw-mode)
(setf full-refresh-needed t)
)
)
(de leave-raw-mode ()
% Use this function to leave "raw mode", i.e. turn on echoing of terminal
% input and disable any special terminal keys. The cursor is positioned
% on the last line of the screen, which is cleared.
(when (=> nmode-terminal raw-mode)
(=> nmode-terminal move-cursor (=> nmode-terminal maxrow) 0)
(=> nmode-terminal clear-line)
(=> nmode-terminal leave-raw-mode)
))
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Refresh functions:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de nmode-refresh ()
% This function refreshes the screen. It first ensures that all exposed
% NMODE windows update their corresponding virtual screens. Then, it
% asks the window package to update the display. A "full refresh" will
% be done if some prior operation has indicated the need for one.
(cond (full-refresh-needed
(nmode-full-refresh))
(t
(nmode-refresh-windows)
(when (not nmode-breakout-occurred?)
(=> nmode-screen refresh nmode-allow-refresh-breakout)
(if (and nmode-other-screen nmode-two-screens?)
(=> nmode-other-screen refresh nmode-allow-refresh-breakout))
))))
(de nmode-full-refresh ()
% This function refreshes the screen after first clearing the terminal
% display. It it used when the state of the terminal display is in doubt.
(nmode-refresh-windows)
(when (not (setf full-refresh-needed nmode-breakout-occurred?))
(=> nmode-screen full-refresh nil)
(if (and nmode-other-screen nmode-two-screens?)
(=> nmode-other-screen full-refresh nil))
))
(de nmode-refresh-one-window (w)
% This function refreshes the display, but only updates the virtual screen
% corresponding to the specified window.
(cond (full-refresh-needed
(nmode-full-refresh))
(nmode-breakout-occurred?
(nmode-refresh))
(t
(if (eq (=> nmode-screen owner 0 0) nmode-blank-screen) % hack!
(=> nmode-blank-screen deexpose))
(nmode-adjust-window w)
(nmode-refresh-window w)
(nmode-refresh-screen (=> (=> w screen) screen))
)))
(de nmode-refresh-virtual-screen (s)
% This function refreshes the shared screen containing the specified
% virtual screen.
(cond (full-refresh-needed
(nmode-full-refresh))
(nmode-breakout-occurred?
(nmode-refresh))
(t
(if (eq (=> nmode-screen owner 0 0) nmode-blank-screen) % hack!
(=> nmode-blank-screen deexpose))
(nmode-refresh-screen (=> s screen))
)))
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Internal functions:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(de nmode-refresh-windows ()
% Cause all windows to update their corresponding virtual screens. The
% variable nmode-breakout-occurred? is set to T if the refresh is
% interrupted by user input.
(setf nmode-breakout-occurred? NIL)
(=> nmode-blank-screen deexpose) % hack!
(=> nmode-current-window adjust-window)
(nmode-refresh-window nmode-top-window)
(nmode-refresh-window nmode-bottom-window)
(nmode-refresh-window nmode-input-window)
)
(de nmode-refresh-window (w)
% Refresh only if window is exposed and no breakout has occurred.
% Update the flag nmode-breakout-occurred?
(if (not nmode-breakout-occurred?)
(if (eq (object-type w) 'buffer-window) % hack for efficiency
(if (buffer-window$exposed? w)
(setf nmode-breakout-occurred?
(not (buffer-window$refresh w nmode-allow-refresh-breakout))))
(if (=> w exposed?)
(setf nmode-breakout-occurred?
(not (=> w refresh nmode-allow-refresh-breakout))))
)))
(de nmode-refresh-screen (s)
% Refresh the specified shared-screen.
(if (eq (object-type s) 'shared-physical-screen) % hack for efficiency
(shared-physical-screen$refresh s nmode-allow-refresh-breakout)
(=> s refresh nmode-allow-refresh-breakout)
))
(de nmode-establish-video-polarity ()
(let ((mask (if nmode-inverse-video?
nmode-inverse-enhancement
nmode-normal-enhancement
)))
(=> nmode-top-window set-text-enhancement mask)
(=> nmode-bottom-window set-text-enhancement mask)
(=> nmode-input-window set-text-enhancement mask)
(=> nmode-prompt-screen set-default-enhancement mask)
(=> nmode-message-screen set-default-enhancement mask)
(=> nmode-blank-screen set-default-enhancement mask)
(=> nmode-prompt-screen clear)
(rewrite-message)
(=> nmode-blank-screen clear)
))
(de nmode-new-terminal ()
% This function should be called when either NMODE-TERMINAL or
% NMODE-OTHER-TERMINAL changes.
(setf full-refresh-needed T)
(setf nmode-physical-screen (create-physical-screen nmode-terminal))
(setf nmode-other-physical-screen
(if nmode-other-terminal
(create-physical-screen nmode-other-terminal)))
(if nmode-screen
(=> nmode-screen set-screen nmode-physical-screen)
(setf nmode-screen (create-shared-physical-screen nmode-physical-screen))
)
(nmode-setup-softkey-label-screen nmode-screen)
(if nmode-other-terminal
(if nmode-other-screen
(=> nmode-other-screen set-screen nmode-other-physical-screen)
(setf nmode-other-screen
(create-shared-physical-screen nmode-other-physical-screen))
)
(setf nmode-other-screen nil)
)
(let ((height (=> nmode-screen height))
(width (=> nmode-screen width))
)
(when nmode-softkey-label-screen
(setf height (- height (=> nmode-softkey-label-screen height)))
)
(setf nmode-total-lines (- height 2)) % all but message and prompt lines
(setf nmode-top-lines (/ nmode-total-lines 2)) % half for the top window
% Throw away the old windows and screens!
(if nmode-blank-screen (=> nmode-blank-screen deexpose))
(if nmode-message-screen (=> nmode-message-screen deexpose))
(if nmode-prompt-screen (=> nmode-prompt-screen deexpose))
(if nmode-input-window (=> nmode-input-window deexpose))
% Create new windows and screens:
(setf nmode-blank-screen % hack to implement clear screen
(nmode-create-screen height width 0 0))
(setf nmode-message-screen (nmode-create-screen 1 width (- height 2) 0))
(setf nmode-prompt-screen (nmode-create-screen 1 width (- height 1) 0))
(setf nmode-input-window
(create-unlabeled-buffer-window nmode-input-buffer
(nmode-create-screen 1 width (- height 1) 0)))
(nmode-fixup-windows)
(setf nmode-layout-mode (if nmode-two-screens? 2 1))
(=> nmode-message-screen expose)
(=> nmode-prompt-screen expose)
(nmode-select-window nmode-top-window)
(nmode-establish-video-polarity)
(nmode-set-window-sizes)
))
(de nmode-create-screen (height width row-origin column-origin)
(make-instance 'virtual-screen
'screen nmode-screen
'height height
'width width
'row-origin row-origin
'column-origin column-origin)
)
(de nmode-set-window-sizes ()
% This function ensures that the top and bottom windows are properly
% set up and exposed.
(cond ((< nmode-top-lines 2)
(setf nmode-top-lines 2))
((> nmode-top-lines (- nmode-total-lines 2))
(setf nmode-top-lines (- nmode-total-lines 2)))
)
(nmode-fixup-windows)
(cond
(nmode-two-screens?
(nmode-position-window nmode-top-window nmode-total-lines 0)
(nmode-position-window nmode-bottom-window nmode-total-lines 0)
(nmode-expose-both-windows)
)
((= nmode-layout-mode 1)
(nmode-position-window nmode-top-window nmode-total-lines 0)
(nmode-position-window nmode-bottom-window nmode-total-lines 0)
(=> nmode-top-window expose)
)
((= nmode-layout-mode 2)
(nmode-position-window nmode-top-window nmode-top-lines 0)
(nmode-position-window nmode-bottom-window
(- nmode-total-lines nmode-top-lines)
nmode-top-lines
)
(nmode-expose-both-windows)
)))
(de nmode-position-window (w height origin)
(if (eq (=> (=> w screen) screen) nmode-other-screen)
(setf height (=> nmode-other-screen height)))
(=> w set-size height (=> w width))
(let ((s (=> w screen)))
(=> s set-origin origin 0))
)
(de nmode-expose-both-windows ()
(cond ((eq nmode-top-window nmode-current-window)
(=> nmode-bottom-window expose)
(=> nmode-top-window expose)
)
(t
(=> nmode-top-window expose)
(=> nmode-bottom-window expose)
)))
(de nmode-fixup-windows ()
% Ensure that the two buffer-windows exist and are attached to the proper
% shared-screens.
(let ((top-screen (if (and nmode-two-screens? nmode-other-screen)
nmode-other-screen
nmode-screen
))
(bottom-screen nmode-screen)
)
(if (or (not nmode-top-window)
(neq (=> (=> nmode-top-window screen) screen) top-screen)
)
(nmode-create-top-window)
)
(if (or (not nmode-bottom-window)
(neq (=> (=> nmode-bottom-window screen) screen) bottom-screen)
)
(nmode-create-bottom-window)
)
))
(de nmode-create-top-window ()
(let ((vs (if (and nmode-two-screens? nmode-other-screen)
(make-instance 'virtual-screen
'screen nmode-other-screen
'height (=> nmode-other-screen height)
'width (=> nmode-other-screen width)
'row-origin 0
)
(make-instance 'virtual-screen
'screen nmode-screen
'height nmode-total-lines
'width (=> nmode-screen width)
'row-origin 0
)))
)
(if nmode-top-window
(=> nmode-top-window set-screen vs)
(setf nmode-top-window (create-buffer-window nmode-main-buffer vs))
)))
(de nmode-create-bottom-window ()
(let ((vs (make-instance 'virtual-screen
'screen nmode-screen
'height nmode-total-lines
'width (=> nmode-screen width)
'row-origin 0
))
)
(if nmode-bottom-window
(=> nmode-bottom-window set-screen vs)
(setf nmode-bottom-window (create-buffer-window nmode-output-buffer vs))
)))
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
(undeclare-flavor nmode-top-window nmode-bottom-window nmode-input-window
nmode-current-window nmode-blank-screen nmode-screen)