+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 -
+}
+