mirror of https://github.com/yshui/picom.git
93 lines
2.0 KiB
Bash
Executable File
93 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# transset in a bash script
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# Copyright (c) 2011-2012, Christopher Jeffrey
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# Usage:
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# by window id
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# settrans -w "$WINDOWID" -o 75
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# by name
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# settrans -n "urxvt" -o 75
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# by current window
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# settrans -c -o 75
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# by selection
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# settrans -s -o 75
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# increment current window 5%
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# settrans -c -o +5
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if test -z "$(which xprop)" -o -z "$(which xwininfo)"; then
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echo "Please install x11-utils/xorg-xprop/xorg-xwininfo." >& 2
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exit 1
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fi
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window=
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opacity=
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cur=
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root=
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parent=
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active=
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i=
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while getopts "scn:w:o:" option; do
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case "$option" in
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s) window="" ;;
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c)
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active=$(xprop -root -notype "_NET_ACTIVE_WINDOW" \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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window="-id $active"
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;;
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n) window="-name $OPTARG" ;;
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w) window="-id $OPTARG" ;;
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o) opacity="$OPTARG" ;;
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esac
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done
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root=$(xwininfo -all -root \
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| grep "Root window id" \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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parent=$window
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i=0
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while true; do
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parent=$(xwininfo -all $parent \
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| grep Parent \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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if test "$parent" = "$root"; then
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break
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fi
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parent="-id $parent"
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window=$parent
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i=$((i+1))
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if test $i -ge 1000; then
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echo "An error occurred while traversing up the window tree." >& 2
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echo "Please report this to https://github.com/chjj/compton/issues." >& 2
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echo "Please mention your WM and versions of xwininfo/xprop." >& 2
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exit 1
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fi
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done
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inc=$(echo "$opacity" | sed 's/^\(+\|-\).*$\|^.*$/\1/')
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if test -n "$inc"; then
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cur=$(xprop $window -notype "_NET_WM_WINDOW_OPACITY" \
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| sed 's/^.*\b\([0-9]\+\).*$\|^.*$/\1/')
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test -z "$cur" && cur=$((0xffffffff))
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cur=$((cur*100/0xffffffff))
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opacity=$(echo "$opacity" | sed 's/\(\+\|\-\)//')
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if test "$inc" = "+"; then
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opacity=$((cur+opacity))
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else
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opacity=$((cur-opacity))
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fi
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fi
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if test -n "$opacity" -a -n "$window"; then
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test $opacity -lt 0 && opacity=0
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test $opacity -gt 100 && opacity=100
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opacity=$((opacity*0xffffffff/100))
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xprop $window -f _NET_WM_WINDOW_OPACITY 32c \
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-set _NET_WM_WINDOW_OPACITY "$opacity"
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fi
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