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1 #!/bin/sh
2 # $XTermId: dynamic.sh,v 1.25 2022/04/25 08:19:38 tom Exp $
3 # -----------------------------------------------------------------------------
4 # this file is part of xterm
5 #
6 # Copyright 1999-2021,2022 by Thomas E. Dickey
7 #
8 # All Rights Reserved
9 #
10 # Permission is hereby granted, free of charge, to any person obtaining a
11 # copy of this software and associated documentation files (the
12 # "Software"), to deal in the Software without restriction, including
13 # without limitation the rights to use, copy, modify, merge, publish,
14 # distribute, sublicense, and/or sell copies of the Software, and to
15 # permit persons to whom the Software is furnished to do so, subject to
16 # the following conditions:
17 #
18 # The above copyright notice and this permission notice shall be included
19 # in all copies or substantial portions of the Software.
20 #
21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24 # IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
25 # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
26 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
27 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #
29 # Except as contained in this notice, the name(s) of the above copyright
30 # holders shall not be used in advertising or otherwise to promote the
31 # sale, use or other dealings in this Software without prior written
32 # authorization.
33 # -----------------------------------------------------------------------------
34 # Demonstrate the use of dynamic colors by setting the background successively
35 # to different values.
36
37 ESC=""
38 OSC="${ESC}]"
39 CMD='/bin/echo'
40 OPT='-n'
41 SUF=''
42 : "${TMPDIR=/tmp}"
43 TMP=`(mktemp "$TMPDIR/xterm.XXXXXXXX") 2>/dev/null` || TMP="$TMPDIR/xterm$$"
44 eval '$CMD $OPT >$TMP || echo fail >$TMP' 2>/dev/null
45 { test ! -f "$TMP" || test -s "$TMP"; } &&
46 for verb in "printf" "print" ; do
47 rm -f "$TMP"
48 eval '$verb "\c" >$TMP || echo fail >$TMP' 2>/dev/null
49 if test -f "$TMP" ; then
50 if test ! -s "$TMP" ; then
51 CMD="$verb"
52 OPT=
53 SUF='\c'
54 break
55 fi
56 fi
57 done
58 rm -f "$TMP"
59
60 LIST="00 30 80 d0 ff"
61
62 exec </dev/tty
63 old=`stty -g`
64 stty raw -echo min 0 time 5
65
66 $CMD $OPT "${OSC}11;?${SUF}" > /dev/tty
67 read -r original
68 stty $old
69 original=${original}${SUF}
70
71 trap '$CMD $OPT "$original" >/dev/tty; exit 1' 1 2 3 15
72 trap '$CMD $OPT "$original" >/dev/tty' 0
73
74 while true
75 do
76 for R in $LIST
77 do
78 for G in $LIST
79 do
80 for B in $LIST
81 do
82 $CMD $OPT "${OSC}11;rgb:$R/$G/$B${SUF}" >/dev/tty
83 sleep 1
84 done
85 done
86 done
87 done