XRANDR=/usr/bin/xrandr
DISPER=/usr/bin/disper
XDPYINFO=/usr/bin/xdpyinfo
-PROFILES=~/.autorandr/
+PROFILES=~/.autorandr
CONFIG=~/.autorandr.conf
+RESERVED_PROFILE_NAMES=`cat <<EOF
+ common Clone all connected outputs at the largest common resolution
+ horizontal Stack all connected outputs horizontally at their largest resolution
+ vertical Stack all connected outputs vertically at their largest resolution
+EOF`
CHANGE_PROFILE=0
FORCE_LOAD=0
$DISPER -p
}
+common_cfg_xrandr() {
+ $XRANDR -q | awk '
+ # variables:
+ # output: current output
+ # outputlist: space sep list of all outputs
+ # outputarr: array of all connected outputs
+ # outputarrsize: number of connected outputs
+ # modelist[800x600]: space sep list of outputs supporting mode
+ # display is connected
+ /^[^ ]+ connected / {
+ output=$1;
+ outputlist=outputlist " " output
+ outputarr[outputarrsize++]=output
+ }
+ # disconnected or disabled displays
+ /^[^ ]+ disconnected / ||
+ /^[^ ]+ unknown connection / {
+ print "output " $1;
+ print "off";
+ }
+ # modes available on a screen
+ /^ [0-9]+x[0-9]+/ {
+ modelist[$1]=modelist[$1] " " output
+ }
+ END {
+ # find common mode with largest screen area
+ for (m in modelist) {
+ if (modelist[m] == outputlist) {
+ # calculate area of resolution
+ split(m, wh, "x");
+ if (wh[1]*wh[2] >= maxdim) {
+ maxdim=wh[1]*wh[2]
+ maxmode=m
+ }
+ }
+ }
+ if (maxmode) {
+ for (i in outputarr) {
+ print "output " outputarr[i];
+ print "mode " maxmode;
+ print "pos 0x0";
+ if (i > 0) {
+ print "same-as " outputarr[0]
+ }
+ }
+ }
+ }' \
+ | load_cfg_xrandr -
+}
+
+stack_cfg_xrandr() {
+ $XRANDR -q | awk -v stack="${STACK}" '
+ # variables:
+ # stack: "horizontal" (anything except vertical) or "vertical"
+ # output: current output
+ # firstmode: pick first mode after output
+ # posX,posY: position of the next output
+ BEGIN {
+ posX=posY=0
+ }
+ # display is connected
+ /^[^ ]+ connected / {
+ output=$1;
+ print "output " $1;
+ firstmode=1
+ }
+ # disconnected or disabled displays
+ /^[^ ]+ disconnected / ||
+ /^[^ ]+ unknown connection / {
+ print "output " $1;
+ print "off";
+ }
+ # modes available on a screen, but pick only the first
+ /^ [0-9]+x[0-9]+/ {
+ if (!firstmode) next;
+ firstmode=0
+ # output mode at current virtual desktop pos
+ print "mode " $1;
+ print "pos " posX "x" posY;
+ # calculate position of next output
+ split($1, wh, "x");
+ if (stack == "vertical")
+ posY += wh[2];
+ else
+ posX += wh[1];
+ }' \
+ | load_cfg_xrandr -
+}
+
current_cfg() {
$CURRENT_CFG_METHOD;
}
load_cfg_xrandr() {
# sed 1: Prefix arguments with "--"
# sed 2: Merge arguments into one line per output
- # sed 3: Merge into two lines, all --off outputs in the first one
+ # sed 3: * Merge all --off outputs into the first line
+ # * Place the output with --pos 0x0 on the second line
+ # * Remaining outputs are appended as they appear
+ # * Keep everything in hold buffer until the last line
+ # sed 4: Remove empty lines caused by G and H on empty hold buffer
sed 's/^/--/' "$1" | sed -e '
:START
/\n--output/{P;D}
s/\n/ /
N;bSTART' | sed -e '
- ### First line
/ --off/{
G
- # Merge if next line contains --off
+ # Merge with next line if it contains --off
s/\n\([^\n]* --off\)/ \1/
h
$!d;b
}
- ### Last line
- H;x
- # Merge if previous line contains --mode
- s/\(--mode [^\n]*\)\n/\1 /
- h
- $!d' | xargs -L 1 $XRANDR
+ / --pos 0x0/{
+ G
+ # Swap lines 1 and 2 if --off is found
+ / --off/ s/^\([^\n]*\)\n\([^\n]*\)/\2\n\1/
+ h
+ $!d;b
+ }
+ H
+ $!d
+ x' | sed -e '
+ /./ !d' | xargs -L 1 $XRANDR
}
load_cfg_disper() {
load() {
local PROFILE="$1"
local CONF="$PROFILES/$PROFILE/config"
- [ -f "$CONF" ] || return 1
+ local IS_VIRTUAL_PROFILE=`echo "$RESERVED_PROFILE_NAMES" | grep -c "^ $PROFILE "`
+
+ if [ ! -f "$CONF" -a $IS_VIRTUAL_PROFILE -eq 0 ]; then
+ echo " -> Error: Profile '$PROFILE' does not exist." >&2
+ return
+ fi
+
if [ -x "$PROFILES/preswitch" ]; then
"$PROFILES/preswitch" "$PROFILE"
fi
"$PROFILES/$PROFILE/preswitch" "$PROFILE"
fi
- echo " -> loading profile $PROFILE"
- $LOAD_METHOD "$CONF"
+ if [ -f "$CONF" ]; then
+ echo " -> loading profile $PROFILE"
+ if [ $IS_VIRTUAL_PROFILE -ne 0 ]; then
+ echo " -> Warning: Existing profile overrides virtual profile with same name" >&2
+ fi
+ $LOAD_METHOD "$CONF"
+ else
+ # Virtual profiles
+ if [ $PROFILE = "common" ]; then
+ echo " -> setting largest common mode in cloned mode"
+ common_cfg_xrandr
+ elif [ $PROFILE = "horizontal" ]; then
+ echo " -> stacking all outputs horizontally at their largest modes"
+ STACK="horizontal" stack_cfg_xrandr
+ elif [ $PROFILE = "vertical" ]; then
+ echo " -> stacking all outputs vertically at their largest modes"
+ STACK="vertical" stack_cfg_xrandr
+ fi
+ fi
if [ -x "$PROFILES/$PROFILE/postswitch" ]; then
"$PROFILES/$PROFILE/postswitch" "$PROFILE"
When called by the name "autodisper" or "auto-disper", the script uses "disper"
instead of "xrandr" to detect, configure and save the display configuration.
+ If xrandr is used, the following virtual configurations are available:
+${RESERVED_PROFILE_NAMES}
+
EOH
exit
}
CURRENT_SETUP="$(setup_fp)"
if [ -n "$SAVE_PROFILE" ]; then
+ if echo "$RESERVED_PROFILE_NAMES" | grep -q "^ $SAVE_PROFILE "; then
+ echo "Cannot save current configuration as profile '${SAVE_PROFILE}': This configuration name is a reserved virtual configuration."
+ exit 1
+ fi
echo "Saving current configuration as profile '${SAVE_PROFILE}'"
mkdir -p "$PROFILES/$SAVE_PROFILE"
echo "$CURRENT_SETUP" > "$PROFILES/$SAVE_PROFILE/setup"