77 lines
1.6 KiB
Bash
Executable File
77 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# transset in a bash script
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# copyright (c) 2011, christopher jeffrey
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# usage:
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# by window id
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#trans -w "$WINDOWID" -o 75
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# by name
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#trans -n "urxvt" -o 75
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# by current window
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#trans -c -o 75
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# by selection
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#trans -s -o 75
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[ -z "$(which xprop)" ] && \
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echo "Please install x11-utils/xorg-xprop."
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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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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 \
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| grep "_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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# should probably use a while loop
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# to get the toplevel window
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parent=$(xwininfo -all $window \
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| grep Parent \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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root=$(xwininfo -all -root \
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| grep "Root window id" \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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if [ "$parent" != "$root" ]; then
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window="-id $parent"
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fi
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inc=$(echo "$opacity" | sed 's/^\(+\|-\).*$\|^.*$/\1/')
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if [ -n "$inc" ]; then
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cur=$(xprop $window -notype "_NET_WM_WINDOW_OPACITY" \
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| sed 's/^.*\([0-9]\+\).*$\|^.*$/\1/')
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[ -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 [ "$inc" = "+" ]; then
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opacity=$((cur+opacity))
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else
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opacity=$((cur-opacity))
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fi
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fi
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if [ -n "$opacity" ] && [ -n "$window" ]; then
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[ $opacity -le 0 ] && opacity=0
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[ $opacity -ge 100 ] && opacity=100
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opacity=$((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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