David Heinemeier HanssonandClaude Fable 5
b538dd545a
GTK only honors whole-number GDK_SCALE values, so persisting 1.6 or 1.25 verbatim left GTK apps without a usable scale. Round to the nearest whole factor when writing monitors.lua. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
196 lines
6.8 KiB
Bash
Executable File
196 lines
6.8 KiB
Bash
Executable File
#!/bin/bash
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# omarchy:summary=Show, set, or adjust focused Hyprland monitor scaling
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# omarchy:args=[up|down|SCALE]
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# omarchy:examples=omarchy hyprland monitor scaling | omarchy hyprland monitor scaling 1.6 | omarchy hyprland monitor scaling up | omarchy hyprland monitor scaling down
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SCALES=(1 1.25 1.6 2 3 4)
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STATE_DIR="${XDG_STATE_HOME:-$HOME/.local/state}/omarchy"
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SCALE_LOG="$STATE_DIR/monitor-scaling.log"
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usage() {
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echo "Usage: omarchy-hyprland-monitor-scaling [up|down|SCALE]"
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}
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focused_monitor_scale() {
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hyprctl monitors -j | jq -er '.[] | select(.focused == true) | .scale'
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}
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cmdline_for_pid() {
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local pid="$1"
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[[ -r /proc/$pid/cmdline ]] || return 0
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tr '\0\t\n' ' ' <"/proc/$pid/cmdline" | sed -E 's/[[:space:]]+/ /g; s/[[:space:]]+$//'
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}
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audit_scale_change() {
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local requested="$1"
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local active_monitor="$2"
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local current_scale="$3"
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local new_scale="$4"
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local parent_pid="$PPID"
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local grandparent_pid
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local parent_cmd
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local grandparent_cmd
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mkdir -p "$STATE_DIR" || return 0
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grandparent_pid=$(ps -o ppid= -p "$parent_pid" 2>/dev/null | tr -d ' ')
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parent_cmd=$(cmdline_for_pid "$parent_pid")
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grandparent_cmd=$(cmdline_for_pid "$grandparent_pid")
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printf 'at=%s\trequested=%s\tcurrent=%s\tnew=%s\tmonitor=%s\tpid=%s\tppid=%s\tparent=%s\tgppid=%s\tgrandparent=%s\n' \
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"$(date --iso-8601=seconds)" \
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"$requested" \
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"$current_scale" \
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"$new_scale" \
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"$active_monitor" \
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"$$" \
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"$parent_pid" \
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"$parent_cmd" \
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"$grandparent_pid" \
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"$grandparent_cmd" >>"$SCALE_LOG"
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}
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# Hyprland only accepts scales where the mode divides into whole logical
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# pixels (in 1/120 steps), so clean scales are divisors of gcd(w*120, h*120).
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# Round the requested scale up to the nearest clean value.
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clean_scale() {
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awk -v scale="$1" -v width="$2" -v height="$3" '
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function gcd(a, b, t) { while (b) { t = a % b; a = b; b = t } return a }
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BEGIN {
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g = gcd(width * 120, height * 120)
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k = int(scale * 120 + 0.5)
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if (k > g) k = g
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while (g % k != 0) k++
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printf "%g\n", k / 120
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}'
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}
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normalize_scale() {
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awk 'NR == 1 { printf "%g\n", $0 }'
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}
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set_scale() {
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local requested_scale="$1"
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local requested="${2:-$requested_scale}"
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local monitor_info="$(hyprctl monitors -j | jq -e -c '.[] | select(.focused == true)')"
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local active_monitor="$(echo "$monitor_info" | jq -r '.name')"
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local current_scale="$(echo "$monitor_info" | jq -r '.scale')"
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local width="$(echo "$monitor_info" | jq -r '.width')"
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local height="$(echo "$monitor_info" | jq -r '.height')"
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local refresh_rate="$(echo "$monitor_info" | jq -r '.refreshRate')"
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local new_scale="$(clean_scale "$requested_scale" "$width" "$height")"
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# GTK only honors integer GDK_SCALE values, so persist the nearest whole
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# factor even when the monitor scale itself is fractional.
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local new_gdk_scale="$(awk -v scale="$new_scale" 'BEGIN { printf "%d", int(scale + 0.5) }')"
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local monitor_lua="$HOME/.config/hypr/monitors.lua"
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hyprctl eval "hl.monitor({ output = \"$active_monitor\", mode = \"${width}x${height}@${refresh_rate}\", position = \"auto\", scale = $new_scale })" >/dev/null
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audit_scale_change "$requested" "$active_monitor" "$current_scale" "$new_scale"
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# Persist to monitors.lua if the user still has Omarchy's generic catch-all
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# defaults, so the scale survives reboots.
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if [[ -f $monitor_lua ]] && grep -q '^local omarchy_monitor_scale = ' "$monitor_lua"; then
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sed -i -E \
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-e "s|^local omarchy_monitor_scale = .*|local omarchy_monitor_scale = ${new_scale}|" \
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-e "s|^local omarchy_gdk_scale = .*|local omarchy_gdk_scale = ${new_gdk_scale}|" \
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"$monitor_lua"
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elif [[ -f $monitor_lua ]] && grep -Eq '^hl\.monitor\(\{ output = "", mode = "preferred", position = "auto", scale = ("auto"|[0-9.]+) \}\)' "$monitor_lua"; then
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sed -i -E \
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-e "s|^(hl\.monitor\(\{ output = \"\", mode = \"preferred\", position = \"auto\", scale = )([^ ]+)( \}\))|\\1${new_scale}\\3|" \
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-e 's|^hl\.env\("GDK_SCALE", ".*"\)|hl.env("GDK_SCALE", "'"$new_gdk_scale"'")|' \
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"$monitor_lua"
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fi
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}
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scale_from_current() {
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local direction="${1:-}"
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local width="${2:-}"
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local height="${3:-}"
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awk -v direction="$direction" -v list="${SCALES[*]}" -v width="$width" -v height="$height" '
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function gcd(a, b, t) { while (b) { t = a % b; a = b; b = t } return a }
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function clean(scale, g, k) {
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g = gcd(width * 120, height * 120)
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k = int(scale * 120 + 0.5)
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if (k > g) k = g
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while (g % k != 0) k++
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return k / 120
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}
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NR == 1 { scale = $0; found = 1 }
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END {
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if (!found) exit 1
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preset_count = split(list, presets, " ")
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for (i = 1; i <= preset_count; i++) {
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effective = clean(presets[i])
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key = sprintf("%.8f", effective)
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distance = presets[i] - effective
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if (distance < 0) distance = -distance
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# Multiple presets can collapse to the same clean scale. Keep only the
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# closest label so stepping always moves to a distinct effective value.
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if (!(key in effective_index)) {
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effective_index[key] = ++n
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effective_scales[n] = effective
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scales[n] = presets[i]
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distances[n] = distance
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} else {
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idx = effective_index[key]
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if (distance < distances[idx]) {
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scales[idx] = presets[i]
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distances[idx] = distance
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}
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}
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}
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# Snap to the nearest effective scale first. Hyprland reports floating
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# point values, so exact comparisons can otherwise get stuck.
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best = 1; best_diff = 1e9
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for (i = 1; i <= n; i++) {
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diff = scale - effective_scales[i]; if (diff < 0) diff = -diff
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if (diff < best_diff) { best_diff = diff; best = i }
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}
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if (direction == "next") {
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print scales[(best < n ? best + 1 : n)]
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} else if (direction == "previous") {
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print scales[(best > 1 ? best - 1 : 1)]
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} else {
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print scales[best]
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}
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}'
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}
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case "${1:-}" in
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"")
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focused_monitor_scale | normalize_scale
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;;
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-h | --help)
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usage
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;;
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up)
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monitor_info=$(hyprctl monitors -j | jq -e -c '.[] | select(.focused == true)')
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set_scale "$(echo "$monitor_info" | jq -r '.scale' | scale_from_current next \
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"$(echo "$monitor_info" | jq -r '.width')" "$(echo "$monitor_info" | jq -r '.height')")" "up"
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;;
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down)
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monitor_info=$(hyprctl monitors -j | jq -e -c '.[] | select(.focused == true)')
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set_scale "$(echo "$monitor_info" | jq -r '.scale' | scale_from_current previous \
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"$(echo "$monitor_info" | jq -r '.width')" "$(echo "$monitor_info" | jq -r '.height')")" "down"
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;;
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1 | 1.25 | 1.6 | 2 | 3 | 4)
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set_scale "$1" "$1"
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;;
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*)
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if [[ $1 =~ ^[0-9]+([.][0-9]+)?$ ]] &&
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awk -v scale="$1" 'BEGIN { exit !(scale >= 1 && scale <= 4) }'; then
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set_scale "$1" "$1"
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else
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usage >&2
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exit 1
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fi
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;;
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esac
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