File: dynamic2.sh

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#!/bin/sh
# $XTermId: dynamic2.sh,v 1.11 2022/04/25 08:19:38 tom Exp $
# -----------------------------------------------------------------------------
# this file is part of xterm
#
# Copyright 2006-2021,2022 by Thomas E. Dickey
#
#                         All Rights Reserved
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name(s) of the above copyright
# holders shall not be used in advertising or otherwise to promote the
# sale, use or other dealings in this Software without prior written
# authorization.
# -----------------------------------------------------------------------------
# Demonstrate the use of dynamic colors by setting each dynamic color
# successively to different values.

ESC=""
OSC="${ESC}]"
CMD='/bin/echo'
OPT='-n'
SUF=''
: "${TMPDIR=/tmp}"
TMP=`(mktemp "$TMPDIR/xterm.XXXXXXXX") 2>/dev/null` || TMP="$TMPDIR/xterm$$"
eval '$CMD $OPT >$TMP || echo fail >$TMP' 2>/dev/null
{ test ! -f "$TMP" || test -s "$TMP"; } &&
for verb in "printf" "print" ; do
    rm -f "$TMP"
    eval '$verb "\c" >$TMP || echo fail >$TMP' 2>/dev/null
    if test -f "$TMP" ; then
	if test ! -s "$TMP" ; then
	    CMD="$verb"
	    OPT=
	    SUF='\c'
	    break
	fi
    fi
done
rm -f "$TMP"

LIST="00 30 80 d0 ff"
FULL="10 11 12 13 14 15 16 17 18"

echo "reading current color settings"

exec </dev/tty
old=`stty -g`
stty raw -echo min 0  time 5

original=
for N in $FULL
do
    $CMD $OPT "${OSC}$N;?${SUF}" > /dev/tty
    read -r reply
    eval original"$N"='${reply}${SUF}'
    original=${original}${reply}${SUF}
done
stty $old

trap '$CMD $OPT "$original" >/dev/tty; exit 1' 1 2 3 15
trap '$CMD $OPT "$original" >/dev/tty' 0

while true
do
    for N in $FULL
    do
	case $N in
	10) echo "coloring text foreground";;
	11) echo "coloring text background";;
	12) echo "coloring text cursor";;
	13) echo "coloring mouse foreground";;
	14) echo "coloring mouse background";;
	15) echo "coloring tektronix foreground";;
	16) echo "coloring tektronix background";;
	17) echo "coloring highlight background";;
	18) echo "coloring tektronix cursor";;
	esac
	for R in $LIST
	do
	    for G in $LIST
	    do
		for B in $LIST
		do
		    $CMD $OPT "${OSC}$N;rgb:$R/$G/$B${SUF}" >/dev/tty
		    sleep 1
		done
	    done
	done
	eval restore=\$original"$N"
	$CMD $OPT "$restore" >/dev/tty
	sleep 1
    done
done