"Fossies" - the Fresh Open Source Software Archive

Member "xterm-379/vttests/resize.sh" (25 Apr 2022, 3246 Bytes) of package /linux/misc/xterm-379.tgz:

As a special service "Fossies" has tried to format the requested source page into HTML format using (guessed) Bash source code syntax highlighting (style: standard) with prefixed line numbers and code folding option. Alternatively you can here view or download the uninterpreted source code file. See also the last Fossies "Diffs" side-by-side code changes report for "resize.sh": 372_vs_373.

    1 #!/bin/sh
    2 # $XTermId: resize.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 # Obtain the current screen size, then resize the terminal to the nominal
   35 # screen width/height, and restore the size.
   36 
   37 ESC=""
   38 CSI="${ESC}["
   39 CMD='/bin/echo'
   40 OPT='-n'
   41 SUF=''
   42 : "${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 exec </dev/tty
   61 old=`stty -g`
   62 stty raw -echo min 0  time 5
   63 
   64 $CMD $OPT "${CSI}18t${SUF}" > /dev/tty
   65 IFS=';' read -r junk high wide
   66 
   67 $CMD $OPT "${CSI}19t${SUF}" > /dev/tty
   68 IFS=';' read -r junk maxhigh maxwide
   69 
   70 stty $old
   71 
   72 wide=`echo "$wide"|sed -e 's/t.*//'`
   73 maxwide=`echo "$maxwide"|sed -e 's/t.*//'`
   74 original=${CSI}8\;${high}\;${wide}t${SUF}
   75 
   76 test "$maxwide" = 0 && maxwide=`expr "$wide" \* 2`
   77 test "$maxhigh" = 0 && maxhigh=`expr "$high" \* 2`
   78 
   79 trap '$CMD $OPT "$original" >/dev/tty; exit 1' 1 2 3 15
   80 trap '$CMD $OPT "$original" >/dev/tty' 0
   81 
   82 w=$wide
   83 h=$high
   84 a=1
   85 while true
   86 do
   87 #   sleep 1
   88     echo "resizing to $h by $w"
   89     $CMD $OPT "${CSI}8;${h};${w}t" >/dev/tty
   90     if test $a = 1 ; then
   91         if test "$w" = "$maxwide" ; then
   92             h=`expr "$h" + "$a"`
   93             if test "$h" = "$maxhigh" ; then
   94                 a=-1
   95             fi
   96         else
   97             w=`expr "$w" + "$a"`
   98         fi
   99     else
  100         if test "$w" = "$wide" ; then
  101             h=`expr "$h" + "$a"`
  102             if test "$h" = "$high" ; then
  103                 a=1
  104             fi
  105         else
  106             w=`expr "$w" + "$a"`
  107         fi
  108     fi
  109 done