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83 lines
3.6 KiB
83 lines
3.6 KiB
#!/bin/sh |
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# A UI for detecting and selecting all displays. Probes xrandr for connected |
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# displays and lets user select one to use. User may also select "manual |
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# selection" which opens arandr. |
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twoscreen() { # If multi-monitor is selected and there are two screens. |
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mirror=$(printf "no\\nyes" | dmenu -i -p "Mirror displays?") |
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# Mirror displays using native resolution of external display and a scaled |
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# version for the internal display |
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if [ "$mirror" = "yes" ]; then |
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external=$(echo "$screens" | dmenu -i -p "Optimize resolution for:") |
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internal=$(echo "$screens" | grep -v "$external") |
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res_external=$(xrandr --query | sed -n "/^$external/,/\+/p" | \ |
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tail -n 1 | awk '{print $1}') |
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res_internal=$(xrandr --query | sed -n "/^$internal/,/\+/p" | \ |
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tail -n 1 | awk '{print $1}') |
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res_ext_x=$(echo "$res_external" | sed 's/x.*//') |
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res_ext_y=$(echo "$res_external" | sed 's/.*x//') |
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res_int_x=$(echo "$res_internal" | sed 's/x.*//') |
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res_int_y=$(echo "$res_internal" | sed 's/.*x//') |
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scale_x=$(echo "$res_ext_x / $res_int_x" | bc -l) |
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scale_y=$(echo "$res_ext_y / $res_int_y" | bc -l) |
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xrandr --output "$external" --auto --scale 1.0x1.0 \ |
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--output "$internal" --auto --same-as "$external" \ |
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--scale "$scale_x"x"$scale_y" |
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else |
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primary=$(echo "$screens" | dmenu -i -p "Select primary display:") |
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secondary=$(echo "$screens" | grep -v "$primary") |
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direction=$(printf "left\\nright" | dmenu -i -p "What side of $primary should $secondary be on?") |
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xrandr --output "$primary" --auto --scale 1.0x1.0 --output "$secondary" --"$direction"-of "$primary" --auto --scale 1.0x1.0 |
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fi |
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} |
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morescreen() { # If multi-monitor is selected and there are more than two screens. |
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primary=$(echo "$screens" | dmenu -i -p "Select primary display:") |
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secondary=$(echo "$screens" | grep -v "$primary" | dmenu -i -p "Select secondary display:") |
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direction=$(printf "left\\nright" | dmenu -i -p "What side of $primary should $secondary be on?") |
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tertiary=$(echo "$screens" | grep -v "$primary" | grep -v "$secondary" | dmenu -i -p "Select third display:") |
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xrandr --output "$primary" --auto --output "$secondary" --"$direction"-of "$primary" --auto --output "$tertiary" --"$(printf "left\\nright" | grep -v "$direction")"-of "$primary" --auto |
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} |
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multimon() { # Multi-monitor handler. |
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case "$(echo "$screens" | wc -l)" in |
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2) twoscreen ;; |
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*) morescreen ;; |
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esac ;} |
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onescreen() { # If only one output available or chosen. |
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xrandr --output "$1" --auto --scale 1.0x1.0 $(echo "$allposs" | grep -v "$1" | awk '{print "--output", $1, "--off"}' | paste -sd ' ') |
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} |
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postrun() { # Stuff to run to clean up. |
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setbg # Fix background if screen size/arangement has changed. |
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remaps # Re-remap keys if keyboard added (for laptop bases) |
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{ killall dunst ; setsid -f dunst ;} >/dev/null 2>&1 # Restart dunst to ensure proper location on screen |
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} |
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# Get all possible displays |
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allposs=$(xrandr -q | grep "connected") |
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# Get all connected screens. |
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screens=$(echo "$allposs" | awk '/ connected/ {print $1}') |
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# If there's only one screen |
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[ "$(echo "$screens" | wc -l)" -lt 2 ] && |
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{ onescreen "$screens"; postrun; notify-send "💻 Only one screen detected." "Using it in its optimal settings..."; exit ;} |
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# Get user choice including multi-monitor and manual selection: |
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chosen=$(printf "%s\\nmulti-monitor\\nmanual selection" "$screens" | dmenu -i -p "Select display arangement:") && |
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case "$chosen" in |
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"manual selection") arandr ; exit ;; |
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"multi-monitor") multimon ;; |
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*) onescreen "$chosen" ;; |
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esac |
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postrun
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