From f7c886dbda9d1c3af9cd422316a75576ee1cd21a Mon Sep 17 00:00:00 2001
From: koksnuss <koksnuss@arcor.de>
Date: Mon, 21 May 2018 22:42:13 +0200
Subject: [PATCH] add colormodw for brightness module

---
 README.md         |  1 +
 config            |  5 +++--
 modules/backlight | 31 +++++++++++++++++++++++++------
 modules/ram       | 10 +++++-----
 4 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index 4e39e6c..b9585f5 100644
--- a/README.md
+++ b/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:
diff --git a/config b/config
index 61e79b4..6800813 100644
--- a/config
+++ b/config
@@ -5,9 +5,10 @@ separator=false
 command=$HOME/.config/i3blocks/modules/$BLOCK_NAME
 interval=5
 
-# [backlight]
-# label=☼
+[backlight]
+label=☼
 # label=☀,☼,✱,✲,✳,✴,✵,✺
+instance=color
 
 [storage]
 label=⛁
diff --git a/modules/backlight b/modules/backlight
index 7a42913..0280ff6 100755
--- a/modules/backlight
+++ b/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 '
-    NR==1 { cbr = $1 }
-    NR==2 { mbr = $1 }
+cat "$DIR/brightness" "$DIR/max_brightness" | gawk -v MODE="$MODE" '
+    NR==1 { current_brightness = $1 }
+    NR==2 { max_brightness = $1 }
     END {
-        printf("%d%\n", cbr / mbr * 100)
-        printf("%d\n", cbr / mbr * 100)
-        print("\n")
+        relative_brightness = ( current_brightness / max_brightness ) * 100
+        printf("%d%\n", relative_brightness)
+        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")
+        }
     }
 '
diff --git a/modules/ram b/modules/ram
index bb01f97..3ad32be 100755
--- a/modules/ram
+++ b/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)