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author | Benjamin Chausse <benjamin@chausse.xyz> | 2020-10-03 19:27:15 -0400 |
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committer | Benjamin Chausse <benjamin@chausse.xyz> | 2020-10-03 19:27:15 -0400 |
commit | e371d9edd474bcf89cf5d462eaccb8638900b390 (patch) | |
tree | ed07118f5c514a55f23a779a1507640e46fd9ed2 /.local/bin/displayselect |
Initial commit
Diffstat (limited to '.local/bin/displayselect')
-rwxr-xr-x | .local/bin/displayselect | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/.local/bin/displayselect b/.local/bin/displayselect new file mode 100755 index 0000000..c0e3479 --- /dev/null +++ b/.local/bin/displayselect @@ -0,0 +1,72 @@ +#!/bin/sh + +# A UI for detecting and selecting all displays. Probes xrandr for connected +# displays and lets user select one to use. User may also select "manual +# selection" which opens arandr. + +twoscreen() { # If multi-monitor is selected and there are two screens. + + mirror=$(printf "no\\nyes" | dmenu -i -p "Mirror displays?") + # Mirror displays using native resolution of external display and a scaled + # version for the internal display + if [ "$mirror" = "yes" ]; then + external=$(echo "$screens" | dmenu -i -p "Optimize resolution for:") + internal=$(echo "$screens" | grep -v "$external") + + res_external=$(xrandr --query | sed -n "/^$external/,/\+/p" | \ + tail -n 1 | awk '{print $1}') + res_internal=$(xrandr --query | sed -n "/^$internal/,/\+/p" | \ + tail -n 1 | awk '{print $1}') + + res_ext_x=$(echo $res_external | sed 's/x.*//') + res_ext_y=$(echo $res_external | sed 's/.*x//') + res_int_x=$(echo $res_internal | sed 's/x.*//') + res_int_y=$(echo $res_internal | sed 's/.*x//') + + scale_x=$(echo "$res_ext_x / $res_int_x" | bc -l) + scale_y=$(echo "$res_ext_y / $res_int_y" | bc -l) + + xrandr --output "$external" --auto --scale 1.0x1.0 \ + --output "$internal" --auto --same-as "$external" \ + --scale "$scale_x"x"$scale_y" + else + + primary=$(echo "$screens" | dmenu -i -p "Select primary display:") + secondary=$(echo "$screens" | grep -v "$primary") + direction=$(printf "left\\nright" | dmenu -i -p "What side of $primary should $secondary be on?") + xrandr --output "$primary" --auto --scale 1.0x1.0 --output "$secondary" --"$direction"-of "$primary" --auto --scale 1.0x1.0 + fi + } + +morescreen() { # If multi-monitor is selected and there are more than two screens. + primary=$(echo "$screens" | dmenu -i -p "Select primary display:") + secondary=$(echo "$screens" | grep -v "$primary" | dmenu -i -p "Select secondary display:") + direction=$(printf "left\\nright" | dmenu -i -p "What side of $primary should $secondary be on?") + tertiary=$(echo "$screens" | grep -v "$primary" | grep -v "$secondary" | dmenu -i -p "Select third display:") + xrandr --output "$primary" --auto --output "$secondary" --"$direction"-of "$primary" --auto --output "$tertiary" --"$(printf "left\\nright" | grep -v "$direction")"-of "$primary" --auto + } + +multimon() { # Multi-monitor handler. + case "$(echo "$screens" | wc -l)" in + 1) xrandr $(echo "$allposs" | grep -v "$screens" | awk '{print "--output", $1, "--off"}' | tr '\n' ' ') ;; + 2) twoscreen ;; + *) morescreen ;; + esac ;} + +# Get all possible displays +allposs=$(xrandr -q | grep "connected") + +# Get all connected screens. +screens=$(echo "$allposs" | grep " connected" | awk '{print $1}') + +# Get user choice including multi-monitor and manual selection: +chosen=$(printf "%s\\nmulti-monitor\\nmanual selection" "$screens" | dmenu -i -p "Select display arangement:") && +case "$chosen" in + "manual selection") arandr ; exit ;; + "multi-monitor") multimon ;; + *) xrandr --output "$chosen" --auto --scale 1.0x1.0 $(echo "$allposs" | grep -v "$chosen" | awk '{print "--output", $1, "--off"}' | tr '\n' ' ') ;; +esac + +setbg # Fix background if screen size/arangement has changed. +remaps # Re-remap keys if keyboard added (for laptop bases) +pgrep -x dunst >/dev/null && killall dunst && setsid dunst & # Restart dunst to ensure proper location on screen |