add colormodw for brightness module

README.md

@@ -11,6 +11,7 @@ This is a simple collection of i3blocks-modules accompagnied by a config file wi
 - module *ram*: by default free ram and swap are shown in the format `a+b G` where `a` is ram and `b` is swap. If you want to show ram and swap seperatly, use `instance=ram` or `instance=swap`. If you left click on the block, `top` will be openend.
 - *cpu*: by default total idle cpu time of all cores together is displayed. If you left click on the block, `top` will be openend.
 - module *battery*: by default the total left energy of all attached batteries is shown. If you want to display the batteries seperatly, use `instance=x` will show the status of BATx in case you have more than one battery attached to your device.
+- module *brightness*: By default the brightness level is shown in the default font color (depending on your i3 config). When set to "color" the brightness level is printed colored which is nice when using a device in battery mode.
 
 # Requirements
 Install [i3 window manager](https://i3wm.org) alongside with [i3blocks](https://github.com/vivien/i3blocks) and `git`. The following shows the requirements for each module:

config

@@ -5,9 +5,10 @@ separator=false
 command=$HOME/.config/i3blocks/modules/$BLOCK_NAME
 interval=5
 
-# [backlight]
+[backlight]
-# label=☼
+label=☼
 # label=☀,☼,✱,✲,✳,✴,✵,✺
+instance=color
 
 [storage]
 label=⛁

modules/backlight

@@ -2,6 +2,8 @@
 
 DIR="/sys/class/backlight"
 
+[[ "${BLOCK_INSTANCE}" == "color" ]] && MODE="color" || MODE="bw"
+
 if [[ -d "$DIR/acpi_video0" ]]; then
    DIR="$DIR/acpi_video0"
 elif [[ -d "$DIR/intel_backlight" ]]; then
@@ -12,12 +14,29 @@ else
    exit 33
 fi
 
-cat "$DIR/brightness" "$DIR/max_brightness" | gawk '
+cat "$DIR/brightness" "$DIR/max_brightness" | gawk -v MODE="$MODE" '
-    NR==1 { cbr = $1 }
+    NR==1 { current_brightness = $1 }
-    NR==2 { mbr = $1 }
+    NR==2 { max_brightness = $1 }
     END {
-        printf("%d%\n", cbr / mbr * 100)
+        relative_brightness = ( current_brightness / max_brightness ) * 100
-        printf("%d\n", cbr / mbr * 100)
+        printf("%d%\n", relative_brightness)
-        print("\n")
+        printf("%d\n", relative_brightness)
+        if (MODE == "color") {
+            if (relative_brightness < 50) {
+                print("#04B431\n")
+            } else if (relative_brightness < 60) {
+                print("#A8FF00\n")
+            } else if (relative_brightness < 70) {
+                print("#FFF600\n")
+            } else if (relative_brightness < 80) {
+                print("#FFAE00\n")
+            } else if (relative_brightness < 90) {
+                print("#FF0000\n")
+            } else {
+                exit 33
+            }
+        } else {
+            printf("\n")
+        }
     }
 '

modules/ram

@@ -2,13 +2,13 @@
 
 [[ "$BLOCK_BUTTON" == 1 ]] && i3-sensible-terminal -e htop
 
-case ${BLOCK_INSTANCE} in
+case "${BLOCK_INSTANCE}" in
     swap) TYPE="swap";;
     ram) TYPE="ram";;
     *) TYPE="";;
 esac
 
-gawk -v type="$TYPE" '
+gawk -v TYPE="$TYPE" '
     /^MemAvailable/ {
         rfg = $2 / 1024^2
 	    rfm = $2 / 1024
@@ -18,7 +18,7 @@ gawk -v type="$TYPE" '
 	    sfm = $2 / 1024
     } 
     END {
-        if (type == "") {
+        if (TYPE == "") {
             mfg = rfg + sfg
             mfm = rfm + sfm
             if (mfg > 2) {
@@ -28,7 +28,7 @@ gawk -v type="$TYPE" '
                 printf("%d+%d M\n", rfm, sfm)
                 printf("%d+%dM\n", rfm, sfm)
             }
-        } else if (type == "ram") {
+        } else if (TYPE == "ram") {
             if (rfg > 2) {
                 printf("%d G\n", rfg)
                 printf("%dG\n", rfg)
@@ -37,7 +37,7 @@ gawk -v type="$TYPE" '
                 printf("%d M\n", rfm)
                 printf("%dM\n", rfm)
             }
-        } else if (type == "swap") {
+        } else if (TYPE == "swap") {
             if (sfg > 2) {
                 printf("%d G\n", sfg)
                 printf("%dG\n", sfg)