readme.md

1 files changed, 114 insertions, 0 deletions

diff --git a/.local/bin/hypr/hypr_screen_rotate.sh b/.local/bin/hypr/hypr_screen_rotate.sh
new file mode 100755
index 0000000..5fdf062
--- /dev/null
+++ b/.local/bin/hypr/hypr_screen_rotate.sh
@@ -0,0 +1,114 @@
+#!/usr/bin/env bash
+# Script taken from and modified little bit from:
+# https://github.com/dusklinux/dusky/blob/f8a28f425743e478cddefc327e6e554dfcf9521d/user_scripts/hypr/screen_rotate.sh
+
+# 1. Strict Mode & Safety (Bash 5+ Standards)
+# ------------------------------------------------------------------------------
+set -euo pipefail
+IFS=$'\n\t'
+
+# 2. Global Constants (ANSI-C Quoting for "Elite" Color Handling)
+# ------------------------------------------------------------------------------
+readonly C_RED=$'\e[31m'
+readonly C_GREEN=$'\e[32m'
+readonly C_YELLOW=$'\e[33m'
+readonly C_BLUE=$'\e[34m'
+readonly C_BOLD=$'\e[1m'
+readonly C_RESET=$'\e[0m'
+
+# cleanup_trap: Ensures clean exit codes are respected.
+cleanup_trap() {
+    local exit_code=$?
+    if [[ $exit_code -ne 0 ]]; then
+        printf "%s[ERROR]%s Script aborted unexpectedly (Exit Code: %d).\n" \
+            "$C_RED" "$C_RESET" "$exit_code" >&2
+    fi
+}
+trap cleanup_trap EXIT
+
+# 3. Environment & Privilege Checks
+# ------------------------------------------------------------------------------
+# Dependency Check: We need 'jq' for JSON parsing.
+if ! command -v jq &> /dev/null; then
+    printf "%s[ERROR]%s 'jq' is missing. Install it with: sudo pacman -S jq\n" \
+        "$C_RED" "$C_RESET" >&2
+    exit 1
+fi
+
+# Root Check: Hyprland IPC fails if executed as root/sudo due to socket ownership.
+if [[ $EUID -eq 0 ]]; then
+    printf "%s[ERROR]%s Root detected. Please run this as your normal user to access the Hyprland socket.\n" \
+        "$C_RED" "$C_RESET" >&2
+    exit 1
+fi
+
+# 4. Argument Parsing (+90 or -90)
+# ------------------------------------------------------------------------------
+DIRECTION=0
+
+if [[ $# -ne 1 ]]; then
+    printf "%s[INFO]%s Usage: %s [+90|-90]\n" \
+        "$C_YELLOW" "$C_RESET" "${0##*/}"
+    exit 1
+fi
+
+case "$1" in
+    "+90") DIRECTION=1 ;;  # Clockwise
+    "-90") DIRECTION=-1 ;; # Counter-Clockwise
+    *)
+        printf "%s[ERROR]%s Invalid flag '%s'. Use +90 or -90.\n" \
+            "$C_RED" "$C_RESET" "$1" >&2
+        exit 1
+        ;;
+esac
+
+# 5. Hardware Detection (Smart Query)
+# ------------------------------------------------------------------------------
+# We fetch the entire JSON blob once to minimize IPC calls (Performance).
+# We select the current focused monitor
+MON_STATE=$(hyprctl monitors -j | jq -r '.[] | select(.focused == true)')
+
+# Extract precise values using jq
+NAME=$(printf "%s" "$MON_STATE" | jq -r '.name')
+SCALE=$(printf "%s" "$MON_STATE" | jq -r '.scale')
+CURRENT_TRANSFORM=$(printf "%s" "$MON_STATE" | jq -r '.transform')
+
+# Validation: Ensure we actually found a monitor
+if [[ -z "$NAME" || "$NAME" == "null" ]]; then
+    printf "%s[ERROR]%s No active monitors detected via Hyprland IPC.\n" \
+        "$C_RED" "$C_RESET" >&2
+    exit 1
+fi
+
+# 6. Transformation Logic (Modulo Arithmetic)
+# ------------------------------------------------------------------------------
+# Hyprland Transforms: 0=Normal, 1=90, 2=180, 3=270
+# The '+ 4' ensures we handle negative wraparounds correctly in Bash logic.
+NEW_TRANSFORM=$(( (CURRENT_TRANSFORM + DIRECTION + 4) % 4 ))
+
+# 7. Execution (State overwrite)
+# ------------------------------------------------------------------------------
+# We use 'preferred' and 'auto' to remain robust against resolution changes,
+# but we STRICTLY inject the detected $SCALE to prevent UI scaling issues.
+
+printf "%s[INFO]%s Rotating %s%s%s (Scale: %s): %d -> %d\n" \
+    "$C_BLUE" "$C_RESET" "$C_BOLD" "$NAME" "$C_RESET" "$SCALE" "$CURRENT_TRANSFORM" "$NEW_TRANSFORM"
+
+# Apply the new configuration immediately via IPC
+if hyprctl keyword monitor "${NAME}, preferred, auto, ${SCALE}, transform, ${NEW_TRANSFORM}" > /dev/null; then
+    printf "%s[SUCCESS]%s Rotation applied successfully.\n" \
+        "$C_GREEN" "$C_RESET"
+
+    # Notify user visually if notify-send is available (optional UX improvement)
+    if command -v notify-send &> /dev/null; then
+        notify-send -a "System" "Display Rotated" "Monitor: $NAME\nTransform: $NEW_TRANSFORM" -h string:x-canonical-private-synchronous:display-rotate
+    fi
+else
+    printf "%s[ERROR]%s Failed to apply Hyprland keyword.\n" \
+        "$C_RED" "$C_RESET" >&2
+    exit 1
+fi
+
+# Clean exit
+trap - EXIT
+exit 0