mirror of
https://github.com/yshui/picom.git
synced 2024-11-18 13:55:36 -05:00
120 lines
2.9 KiB
Bash
Executable file
120 lines
2.9 KiB
Bash
Executable file
#!/bin/bash
|
|
|
|
# transset in a bash script
|
|
# Copyright (c) 2011-2012, Christopher Jeffrey
|
|
|
|
# Usage:
|
|
# by window id
|
|
# settrans -w "$WINDOWID" -o 75
|
|
# by name
|
|
# settrans -n "urxvt" -o 75
|
|
# by current window
|
|
# settrans -c -o 75
|
|
# by selection
|
|
# settrans -s -o 75
|
|
# increment current window 5%
|
|
# settrans -c -o +5
|
|
|
|
# "command" is a shell built-in, faster than "which"
|
|
if test -z "$(command -v xprop)" -o -z "$(command -v xwininfo)"; then
|
|
echo "Please install x11-utils/xorg-xprop/xorg-xwininfo." >& 2
|
|
exit 1
|
|
fi
|
|
|
|
window=
|
|
opacity=
|
|
cur=
|
|
active=
|
|
i=
|
|
|
|
while getopts "scn:w:o:" option; do
|
|
case "$option" in
|
|
s) window="" ;;
|
|
c)
|
|
active=$(xprop -root -notype "_NET_ACTIVE_WINDOW" \
|
|
| sed 's/^.*\(0x\S*\).*$/\1/')
|
|
wprefix='-id '; window="$active"
|
|
;;
|
|
n) wprefix='-name '; window="$OPTARG" ;;
|
|
w) wprefix='-id '; window="$OPTARG" ;;
|
|
o) opacity="$OPTARG" ;;
|
|
esac
|
|
done
|
|
|
|
# Validate opacity value
|
|
if [ -z "$opacity" ]; then
|
|
echo "No opacity specified."
|
|
exit 1
|
|
fi
|
|
|
|
opacity="$(echo "$opacity" \
|
|
| sed -rn 's/^[[:space:]]*([+-]?[[:digit:]]+)[[:space:]]*$/\1/p')"
|
|
|
|
if [ -z "$opacity" ]; then
|
|
echo "Invalid opacity value."
|
|
exit 1
|
|
fi
|
|
|
|
# Get ID of the target window
|
|
if [ -z "$wprefix" ]; then
|
|
wid=$(xwininfo | sed -n 's/^xwininfo:.*: \(0x[[:xdigit:]]*\).*$/\1/p')
|
|
else
|
|
wid=$(xwininfo $wprefix"$window" | sed -n 's/^xwininfo:.*: \(0x[[:xdigit:]]*\).*$/\1/p')
|
|
fi
|
|
|
|
if [ -z "$wid" ]; then
|
|
echo "Failed to find window."
|
|
exit 1
|
|
fi
|
|
|
|
treeout="$(xwininfo -id "$wid" -children)"
|
|
|
|
# Make sure it's not root window
|
|
if echo "$treeout" | fgrep "Parent window id: 0x0" > /dev/null; then
|
|
echo "Cannot set opacity on root window."
|
|
exit 1
|
|
fi
|
|
|
|
# Get the whole window tree
|
|
treeout="$(xwininfo -root -tree)"
|
|
|
|
if [ -z "$treeout" ]; then
|
|
echo "Failed to get root window tree."
|
|
exit 1
|
|
fi
|
|
|
|
# Find the line number of the target window in the window tree
|
|
lineno="$(echo -n "$treeout" | grep -nw "$wid" | head -n1 | cut -d ':' -f 1)"
|
|
|
|
if [ -z "$lineno" ]; then
|
|
echo "Failed to find window in window tree."
|
|
exit 1
|
|
fi
|
|
|
|
# Find the highest ancestor of the target window below
|
|
topmost=$(echo -n "$treeout" | head -n $(($lineno + 1)) | sed -n 's/^ \(0x[[:xdigit:]]*\).*/\1/p' | tail -n1)
|
|
|
|
if [ -z "$topmost" ]; then
|
|
echo "Failed to find the highest parent window below root of the" \
|
|
"selected window."
|
|
exit 1
|
|
fi
|
|
|
|
# Calculate the desired opacity
|
|
if echo "$opacity" | grep '^[+-]' > /dev/null; then
|
|
sign=$(echo "$opacity" | cut -b1)
|
|
cur=$(xprop -id "$topmost" -notype "_NET_WM_WINDOW_OPACITY" \
|
|
| sed 's/^.*\b\([0-9]\+\).*$\|^.*$/\1/')
|
|
[ -z "$cur" ] && cur=0xffffffff
|
|
cur=$((cur * 100 / 0xffffffff))
|
|
opacity="$(echo "$opacity" | sed 's/^[+-]//')"
|
|
opacity=$(($cur $sign $opacity))
|
|
fi
|
|
|
|
[ $opacity -lt 0 ] && opacity=0
|
|
[ $opacity -gt 100 ] && opacity=100
|
|
|
|
# Set opacity
|
|
opacity=$(($opacity * 0xffffffff / 100))
|
|
xprop -id "$topmost" -f _NET_WM_WINDOW_OPACITY 32c \
|
|
-set _NET_WM_WINDOW_OPACITY "$opacity"
|