From 2c06566405e8708c6c4813e79c74bb64ea61661c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com>
Date: Wed, 23 Dec 2020 20:56:19 +0100
Subject: LoadMeter: dynamically adjust color and total of bar

Change the color and total based on the actual 1min load value:

    < 1         : green and total of 1.0
    < cpu-count : yellow and total of cpu-count
    else        : red and total of 2*cpu-count

Closes: #32
---
 LoadAverageMeter.c | 42 ++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 40 insertions(+), 2 deletions(-)

(limited to 'LoadAverageMeter.c')

diff --git a/LoadAverageMeter.c b/LoadAverageMeter.c
index 248d65cd..0c7b8339 100644
--- a/LoadAverageMeter.c
+++ b/LoadAverageMeter.c
@@ -24,8 +24,36 @@ static const int LoadMeter_attributes[] = {
    LOAD
 };
 
+static const int OK_attributes[] = {
+   METER_VALUE_OK
+};
+
+static const int Medium_attributes[] = {
+   METER_VALUE_WARN
+};
+
+static const int High_attributes[] = {
+   METER_VALUE_ERROR
+};
+
 static void LoadAverageMeter_updateValues(Meter* this, char* buffer, size_t size) {
    Platform_getLoadAverage(&this->values[0], &this->values[1], &this->values[2]);
+
+   // only show bar for 1min value
+   this->curItems = 1;
+
+   // change bar color and total based on value
+   if (this->values[0] < 1.0) {
+      this->curAttributes = OK_attributes;
+      this->total = 1.0;
+   } else if (this->values[0] < this->pl->cpuCount) {
+      this->curAttributes = Medium_attributes;
+      this->total = this->pl->cpuCount;
+   } else {
+      this->curAttributes = High_attributes;
+      this->total = 2 * this->pl->cpuCount;
+   }
+
    xSnprintf(buffer, size, "%.2f/%.2f/%.2f", this->values[0], this->values[1], this->values[2]);
 }
 
@@ -43,9 +71,19 @@ static void LoadAverageMeter_display(const Object* cast, RichString* out) {
 static void LoadMeter_updateValues(Meter* this, char* buffer, size_t size) {
    double five, fifteen;
    Platform_getLoadAverage(&this->values[0], &five, &fifteen);
-   if (this->values[0] > this->total) {
-      this->total = this->values[0];
+
+   // change bar color and total based on value
+   if (this->values[0] < 1.0) {
+      this->curAttributes = OK_attributes;
+      this->total = 1.0;
+   } else if (this->values[0] < this->pl->cpuCount) {
+      this->curAttributes = Medium_attributes;
+      this->total = this->pl->cpuCount;
+   } else {
+      this->curAttributes = High_attributes;
+      this->total = 2 * this->pl->cpuCount;
    }
+
    xSnprintf(buffer, size, "%.2f", this->values[0]);
 }
 
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