xmonad/xmobar/trayer-padding.sh
2024-08-29 21:00:10 -04:00

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#!/bin/sh
# Detects the width of running window with name given as first
# argument (xprop name '$1') and creates an XPM icon of that width,
# 1px height, and transparent. Outputs an <icon>-tag for use in
# xmobar to display the generated XPM icon.
#
# Run script from xmobar and trayer:
# `Run Com "/where/ever/padding-icon.sh" ["panel"] "trayerpad" 10`
# and use `%trayerpad%` in your template.
# or, if you're using for instance stalonetray:
# `Run Com "/where/ever/padding-icon.sh" ["stalonetray"] "tray" 10`
# Very heavily based on Jonas Camillus Jeppensen code
# https://github.com/jaor/xmobar/issues/239#issuecomment-233206552
# Function to create a transparent Wx1 px XPM icon
create_xpm_icon () {
timestamp=$(date)
pixels=$(for i in `seq $1`; do echo -n "."; done)
cat << EOF > "$2"
/* XPM *
static char * trayer_pad_xpm[] = {
/* This XPM icon is used for padding in xmobar to */
/* leave room for trayer-srg. It is dynamically */
/* updated by by trayer-pad-icon.sh which is run */
/* by xmobar. */
/* Created: ${timestamp} */
/* <w/cols> <h/rows> <colors> <chars per pixel> */
"$1 1 1 1",
/* Colors (none: transparent) */
". c none",
/* Pixels */
"$pixels"
};
EOF
}
# Width of the trayer window
width=$(xprop -name panel | grep 'program specified minimum size' | cut -d ' ' -f 5)
# Icon file name
iconfile="/tmp/$pname-padding-${width:-0}px.xpm"
# If the desired icon does not exist create it
if [ ! -f $iconfile ]
then
create_xpm_icon $width $iconfile
fi
# Output the icon tag for xmobar
echo "<icon=${iconfile}/>"