--- /dev/null
+\ *****************************************************************************
+\ * Copyright (c) 2004, 2008 IBM Corporation
+\ * All rights reserved.
+\ * This program and the accompanying materials
+\ * are made available under the terms of the BSD License
+\ * which accompanies this distribution, and is available at
+\ * http://www.opensource.org/licenses/bsd-license.php
+\ *
+\ * Contributors:
+\ * IBM Corporation - initial implementation
+\ ****************************************************************************/
+
+\ \\\\\\\\\\\\\\ Global Data
+
+0 VALUE line#
+0 VALUE column#
+false VALUE inverse?
+false VALUE inverse-screen?
+18 VALUE #lines
+50 VALUE #columns
+
+false VALUE cursor
+false VALUE saved-cursor
+
+
+\ \\\\\\\\\\\\\\ Structure/Implementation Dependent Methods
+
+defer draw-character \ 2B inited by display driver
+defer reset-screen \ 2B inited by display driver
+defer toggle-cursor \ 2B inited by display driver
+defer erase-screen \ 2B inited by display driver
+defer blink-screen \ 2B inited by display driver
+defer invert-screen \ 2B inited by display driver
+defer insert-characters \ 2B inited by display driver
+defer delete-characters \ 2B inited by display driver
+defer insert-lines \ 2B inited by display driver
+defer delete-lines \ 2B inited by display driver
+defer draw-logo \ 2B inited by display driver
+
+: nop-toggle-cursor ( nop ) ;
+' nop-toggle-cursor to toggle-cursor
+
+\ \\\\\\\\\\\\\\ Implementation Independent Methods (Depend on Previous)
+\ *
+\ *
+: (cursor-off) ( -- ) cursor dup to saved-cursor
+ IF toggle-cursor false to cursor THEN ;
+: (cursor-on) ( -- ) cursor dup to saved-cursor
+ 0= IF toggle-cursor true to cursor THEN ;
+: restore-cursor ( -- ) saved-cursor dup cursor
+ <> IF toggle-cursor to cursor ELSE drop THEN ;
+
+' (cursor-off) to cursor-off
+' (cursor-on) to cursor-on
+
+\ \\\\\\\\\\\\\\ Exported Interface:
+\ *
+\ Generic device methods:
+\ *
+
+
+\ \\\\\\\\\\\\\\ Exported Interface:
+\ *
+\ *
+
+false VALUE esc-on
+false VALUE csi-on
+defer esc-process
+0 VALUE esc-num-parm
+0 VALUE esc-num-parm2
+0 VALUE saved-line#
+0 VALUE saved-column#
+
+: get-esc-parm ( default -- value )
+ esc-num-parm dup 0> IF nip ELSE drop THEN 0 to esc-num-parm ;
+: get-esc-parm2 ( default -- value )
+ esc-num-parm2 dup 0> IF nip ELSE drop THEN 0 to esc-num-parm2 ;
+: set-esc-parm ( newdigit -- ) [char] 0 - esc-num-parm a * + to esc-num-parm ;
+
+: reverse-cursor ( oldpos -- newpos) dup IF 1 get-esc-parm - THEN ;
+: advance-cursor ( bound oldpos -- newpos) tuck > IF 1 get-esc-parm + THEN ;
+: erase-in-line #columns column# - dup 0> IF delete-characters ELSE drop THEN ;
+
+: terminal-line++ ( -- )
+ line# 1+ dup #lines = IF 1- 0 to line# 1 delete-lines THEN
+ to line#
+;
+
+0 VALUE dang
+0 VALUE blipp
+false VALUE stopcsi
+0 VALUE term-background
+7 VALUE term-foreground
+
+: set-term-color
+ dup d# 30 d# 39 between IF dup d# 30 - to term-foreground THEN
+ dup d# 40 d# 49 between IF dup d# 40 - to term-background THEN
+ 0 = IF
+ 0 to term-background
+ 7 to term-foreground
+ THEN
+ term-foreground term-background <= to inverse?
+;
+
+: ansi-esc ( char -- )
+ csi-on IF
+ dup [char] 0 [char] 9 between IF set-esc-parm
+ ELSE true to stopcsi CASE
+ [char] A OF line# reverse-cursor to line# ENDOF
+ [char] B OF #lines line# advance-cursor to line# ENDOF
+ [char] C OF #columns column# advance-cursor to column# ENDOF
+ [char] D OF column# reverse-cursor to column# ENDOF
+ [char] E OF ( FIXME: Cursor Next Line - No idea what does it mean )
+ #lines line# advance-cursor to line#
+ ENDOF
+ [char] f OF
+ 1 get-esc-parm2 to line# column# get-esc-parm to column#
+ ENDOF
+ [char] H OF
+ 1 get-esc-parm2 to line# column# get-esc-parm to column#
+ ENDOF
+ ( second parameter delimiter for f and H commands )
+ [char] ; OF false to stopcsi 0 get-esc-parm to esc-num-parm2 ENDOF
+ [char] ? OF false to stopcsi ENDOF ( FIXME: Ignore that for now )
+ [char] l OF ENDOF ( FIXME: ?25l should hide cursor )
+ [char] h OF ENDOF ( FIXME: ?25h should show cursor )
+ [char] J OF
+ #lines line# - dup 0> IF
+ line# 1+ to line# delete-lines line# 1- to line#
+ ELSE drop THEN
+ erase-in-line
+ ENDOF
+ [char] K OF erase-in-line ENDOF
+ [char] L OF 1 get-esc-parm insert-lines ENDOF
+ [char] M OF 1 get-esc-parm delete-lines ENDOF
+ [char] @ OF 1 get-esc-parm insert-characters ENDOF
+ [char] P OF 1 get-esc-parm delete-characters ENDOF
+ [char] m OF 0 get-esc-parm set-term-color ENDOF
+ ( These are non-ANSI commands recommended by OpenBoot )
+ [char] p OF inverse-screen? IF false to inverse-screen?
+ inverse? 0= to inverse? invert-screen
+ THEN
+ ENDOF
+ [char] q OF inverse-screen? 0= IF true to inverse-screen?
+ inverse? 0= to inverse? invert-screen
+ THEN
+ ENDOF
+\ [char] s OF reset-screen ENDOF ( FIXME: this conflicts w. ANSI )
+\ [char] s OF line# to saved-line# column# to saved-column# ENDOF
+ [char] u OF saved-line# to line# saved-column# to column# ENDOF
+ dup dup to dang OF blink-screen ENDOF
+ ENDCASE stopcsi IF false to csi-on
+ false to esc-on 0 to esc-num-parm 0 to esc-num-parm2 THEN
+ THEN
+ ELSE CASE
+ ( DEV VT compatibility stuff used by accept.fs )
+ [char] 7 OF line# to saved-line# column# to saved-column# ENDOF
+ [char] 8 OF saved-line# to line# saved-column# to column# ENDOF
+ [char] [ OF true to csi-on ENDOF
+ dup dup OF false to esc-on to blipp ENDOF
+ ENDCASE
+ csi-on 0= IF false to esc-on THEN 0 to esc-num-parm 0 to esc-num-parm2
+ THEN
+;
+
+' ansi-esc to esc-process
+CREATE twtracebuf 4000 allot twtracebuf 4000 erase
+twtracebuf VALUE twbp
+0 VALUE twbc
+
+: twtrace
+ twbc 4000 = IF 0 to twbc twtracebuf to twbp THEN
+ dup twbp c! twbp 1+ to twbp twbc 1+ to twbc
+;
+
+: terminal-write ( addr len -- actual-len )
+ cursor-off
+ tuck bounds ?DO i c@
+ twtrace
+ esc-on IF esc-process
+ ELSE CASE
+ 1B OF true to esc-on ENDOF
+ carret OF 0 to column# ENDOF
+ linefeed OF terminal-line++ ENDOF
+ bell OF blink-screen ENDOF
+ 9 ( TAB ) OF column# 7 + -8 and dup #columns < IF
+ to column#
+ ELSE drop THEN
+ ENDOF
+ B ( VT ) OF line# ?dup IF 1- to line# THEN ENDOF
+ C ( FF ) OF 0 to line# 0 to column# erase-screen ENDOF
+ bs OF column# 1- dup 0< IF
+ line# IF
+ line# 1- to line#
+ drop #columns 1-
+ ELSE drop column#
+ THEN
+ THEN
+ to column# ( bl draw-character )
+ ENDOF
+ dup OF
+ i c@ draw-character
+ column# 1+ dup #columns >= IF
+ drop 0 terminal-line++
+ THEN
+ to column#
+ ENDOF
+ ENDCASE
+ THEN
+ LOOP
+ restore-cursor
+;
Code Review / kvmfornfv.git / blobdiff