mirror of
https://github.com/ChrisTitusTech/linutil.git
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86 lines
3.4 KiB
Bash
86 lines
3.4 KiB
Bash
#!/bin/sh -e
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. ./utility_functions.sh
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# Function to adjust brightness for a selected monitor
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adjust_monitor_brightness() {
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while true; do
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monitor_list=$(detect_connected_monitors)
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monitor_array=$(echo "$monitor_list" | tr '\n' ' ')
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set -- $monitor_array
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count=1
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clear
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printf "%b\n" "${YELLOW}=========================================${RC}"
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printf "%b\n" "${YELLOW} Adjust Monitor Brightness${RC}"
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printf "%b\n" "${YELLOW}=========================================${RC}"
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printf "%b\n" "${YELLOW}Choose a monitor to adjust brightness:${RC}"
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for monitor in "$@"; do
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echo "$count. $monitor"
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count=$((count + 1))
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done
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printf "Enter the number of the monitor (or 'q' to quit): "
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read monitor_choice
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if [ "$monitor_choice" = "q" ]; then
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printf "%b\n" "${RED}Exiting...${RC}"
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return
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fi
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if ! echo "$monitor_choice" | grep -qE '^[0-9]+$'; then
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printf "%b\n" "${RED}Invalid selection. Please try again.${RC}"
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printf "Press [Enter] to continue..."
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read dummy
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continue
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fi
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if [ "$monitor_choice" -lt 1 ] || [ "$monitor_choice" -gt "$#" ]; then
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printf "%b\n" "${RED}Invalid selection. Please try again.${RC}"
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printf "Press [Enter] to continue..."
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read dummy
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continue
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fi
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monitor_name=$(eval echo "\${$monitor_choice}")
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current_brightness=$(get_current_brightness "$monitor_name")
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# Correctly calculate the brightness percentage
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current_brightness_percentage=$(awk "BEGIN {printf \"%.0f\", $current_brightness * 100}")
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printf "%b\n" "${YELLOW}Current brightness for $monitor_name${RC}: ${GREEN}$current_brightness_percentage%${RC}"
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while true; do
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printf "Enter the new brightness value as a percentage (10 to 100, or 'q' to quit): "
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read new_brightness_percentage
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if [ "$new_brightness_percentage" = "q" ]; then
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printf "%b\n" "${RED}Exiting...${RC}"
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return
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fi
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# Validate brightness input: accept only values above 10
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if ! echo "$new_brightness_percentage" | grep -qE '^[0-9]+$' || [ "$new_brightness_percentage" -lt 10 ] || [ "$new_brightness_percentage" -gt 100 ]; then
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printf "%b\n" "${RED}Invalid brightness value. Please enter a value between 10 and 100.${RC}"
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continue
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fi
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# Convert percentage to xrandr brightness value (10% to 0.10)
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new_brightness=$(awk "BEGIN {printf \"%.2f\", $new_brightness_percentage / 100}")
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printf "Set brightness for $monitor_name to $new_brightness_percentage%? (y/n): "
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read confirm
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if [ "$confirm" = "y" ] || [ "$confirm" = "Y" ]; then
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printf "%b\n" "${GREEN}Setting brightness for $monitor_name to $new_brightness_percentage%${RC}"
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execute_command "xrandr --output $monitor_name --brightness $new_brightness"
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printf "%b\n" "${GREEN}Brightness for $monitor_name set to $new_brightness_percentage% successfully.${RC}"
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break
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else
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printf "%b\n" "${RED}Action canceled. Please choose a different brightness value.${RC}"
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fi
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done
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done
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}
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# Call the adjust_monitor_brightness function
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adjust_monitor_brightness
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