sweepclock: Added a memory printout to the console so the memory usage can be followed when connected

apps/sweepclock/sweepclock.js

@@ -40,10 +40,10 @@ const color_schemes = [
 
 let color_scheme_index = 0;
 
-var WHITE = [1.0,1.0,1.0];
+const WHITE = [1.0,1.0,1.0];
 function default_white(color){
   if(color == null){
-    return WHITE
+    return WHITE;
   } else {
     return color;
   }
@@ -269,7 +269,7 @@ var local = require('locale');
 var last_date = null;
 var last_datestr = null;
 var last_coords = null;
-var date_coords = [
+const date_coords = [
   { name: "topright", coords:[180,30]},
   { name: "bottomright", coords:[180,220]},
   { name: "bottomleft", coords: [5,220]},
@@ -386,29 +386,34 @@ class NoFont extends NumeralFont{
   getName(){return "NoFont";}
 }
 
+const COPASET_DIM_20x58 = [20,58];
+const COPASET_DIM_30x58 = [30,58];
+const COPASET_DIM_40x58 = [40,58];
+const COPASET_DIM_50x58 = [50,58];
+
 class CopasetFont extends NumeralFont{
   constructor(){
     super();
   }
   getDimensions(hour){
     switch(hour){
-      case 1: return [20,58];
+      case 1: return COPASET_DIM_20x58;
       case 2:
       case 3:
       case 4:
       case 5:
       case 7:
-        return [30,58];
+        return COPASET_DIM_30x58;
       case 6:
       case 8:
       case 9:
       case 11:
       case 12:
-        return [40,58];
+        return COPASET_DIM_40x58;
       case 10:
-        return [50,58];
+        return COPASET_DIM_50x58;
       default:
-        return [30,58];
+        return COPASET_DIM_30x58;
     }
   }
   hour_txt(hour){ return hour.toString(); }
@@ -431,7 +436,13 @@ class CopasetFont extends NumeralFont{
   getName(){return "Copaset";}
 }
 
-
+const ROMAN_DIM_10x40 = [10,40];
+const ROMAN_DIM_20x40 = [20,40];
+const ROMAN_DIM_25x40 = [25,40];
+const ROMAN_DIM_30x40 = [30,40];
+const ROMAN_DIM_40x40 = [40,40];
+const ROMAN_DIM_60x40 = [60,40];
+const ROMAN_DIM_70x40 = [70,40];
 class RomanNumeralFont extends NumeralFont{
   constructor(){
     super();
@@ -456,26 +467,26 @@ class RomanNumeralFont extends NumeralFont{
   getDimensions(hour){
     switch (hour){
       case 1:
-        return [10,40];
+        return ROMAN_DIM_10x40;
       case 2:
-        return [25,40];
+        return ROMAN_DIM_25x40;
       case 3:
       case 4:
       case 6:
       case 9:
       case 11:
       case 12:
-        return [40,40];
+        return ROMAN_DIM_40x40;
       case 5:
-        return [30,40];
+        return ROMAN_DIM_30x40;
       case 7:
-        return [60,40];
+        return ROMAN_DIM_60x40;
       case 8:
-        return [70,40];
+        return ROMAN_DIM_70x40;
       case 10:
-        return [20,40];
+        return ROMAN_DIM_20x40;
       default:
-        return [40,40];
+        return ROMAN_DIM_40x40;
     }
   }
   hour_txt(hour){ return this.getText(hour); }
@@ -746,6 +757,12 @@ function load_settings(){
   }
 }
 
+function print_memoryusage(){
+  var m = process.memory();
+  var pc = Math.round(m.usage*100/m.total);
+  console.log("memory usage: " + pc + "%");
+}
+
 /**
  * Called on button press to save down the last preference settings
  */
@@ -757,6 +774,7 @@ function save_settings(){
   };
   console.log("saving:" + JSON.stringify(settings));
   require("Storage").writeJSON("sweepclock.settings.json",settings);
+  print_memoryusage();
 }
 
 // Boiler plate code for setting up the clock,
@@ -785,14 +803,12 @@ function scheduleDrawClock(){
 }
 
 function reset_clock(){
-  g.clear();
   force_redraw = true;
 }
 
 Bangle.on('lcdPower', (on) => {
   if (on) {
     console.log("lcdPower: on");
-    Bangle.drawWidgets();
     reset_clock();
     startTimers();
   } else {