Larger format for single secondary timezone

apps/worldclock/app.js

@@ -1,31 +1,37 @@
 /* jshint esversion: 6 */
-const timeFontSize = 6;
-const dateFontSize = 3;
-const gmtFontSize = 2;
+
+// Font for primary time and date
+const primaryTimeFontSize = 6;
+const primaryDateFontSize = 3;
+
+// Font for single secondary time
+const secondaryTimeFontSize = 4;
+const secondaryTimeZoneFontSize = 4;
+
+// Font / columns for multiple secondary times
+const secondaryRowColFontSize = 2;
+const xcol1 = 10;
+const xcol2 = g.getWidth() - xcol1;
+
 const font = "6x8";
 
 const xyCenter = g.getWidth() / 2;
-const xcol1=10;
-const xcol2=g.getWidth()-xcol1;
 const yposTime = 75;
 const yposDate = 130;
-//const yposYear = 175;
-//const yposGMT = 220;
 const yposWorld = 170;
 
-
-var offsets = require("Storage").readJSON("worldclock.settings.json");
+var offsets = require("Storage").readJSON("worldclock.settings.json") || 0;
 
 // Check settings for what type our clock should be
 //var is12Hour = (require("Storage").readJSON("setting.json",1)||{})["12hour"];
-var secondInterval = undefined;
+var secondInterval;
 
 function doublenum(x) {
   return x < 10 ? "0" + x : "" + x;
 }
 
 function offset(dt, offset) {
-  return new Date(dt.getTime() + (offset*60*60*1000));
+  return new Date(dt.getTime() + offset * 60 * 60 * 1000);
 }
 
 function drawSimpleClock() {
@@ -33,42 +39,66 @@ function drawSimpleClock() {
   var d = new Date();
   var da = d.toString().split(" ");
 
-  g.reset(); // default draw styles
+  // default draw styles
+  g.reset(); 
+
   // drawSting centered
   g.setFontAlign(0, 0);
 
   // draw time
   var time = da[4].substr(0, 5).split(":");
-  var hours = time[0], minutes = time[1];
+  var hours = time[0],
+    minutes = time[1];
 
-  g.setFont(font, timeFontSize);
+  g.setFont(font, primaryTimeFontSize);
   g.drawString(`${hours}:${minutes}`, xyCenter, yposTime, true);
 
   // draw Day, name of month, Date
   var date = [da[0], da[1], da[2]].join(" ");
-  g.setFont(font, dateFontSize);
+  g.setFont(font, primaryDateFontSize);
 
   g.drawString(date, xyCenter, yposDate, true);
 
-  // draw year
-  //g.setFont(font, dateFontSize);
-  //g.drawString(d.getFullYear(), xyCenter, yposYear, true);
+  // set gmt to UTC+0
+  var gmt = new Date(d.getTime() + d.getTimezoneOffset() * 60 * 1000);
   
-  // draw gmt
-  //console.log(d.getTimezoneOffset());//offset to GMT in minutes
-  var gmt = new Date(d.getTime()+(d.getTimezoneOffset()*60*1000));
-  //gmt is now UTC+0
+  // Testing Code to set values during development.
+  // Uncomment to override secondary offsets value
+  // offsets = [
+  //   ["Tokyo", 9],
+  //   ["UTC", 0],
+  // ];
 
+  // offsets = [
+  //   ["UTC", 0],
+  // ];
+
+  // Loop through offset(s) and render
   for (var i = 0; i < offsets.length; i++) {
-    g.setFont(font, gmtFontSize);
     dx = offset(gmt, offsets[i][1]);
     hours = doublenum(dx.getHours());
     minutes = doublenum(dx.getMinutes());
+
+    if (offsets.length === 1) {
+      // For a single secondary timezone, draw it bigger and drop time zone to second line
+      const xOffset = 30;
+      g.setFont(font, secondaryTimeFontSize);
+      g.drawString(`${hours}:${minutes}`, xyCenter, yposTime + 100, true);
+      g.setFont(font, secondaryTimeFontSize - 2);
+      g.drawString(offsets[i][0], xyCenter, yposTime + 130, true);
+
+      // draw Day, name of month, Date
+      g.setFont(font, secondaryTimeZoneFontSize);
+      g.drawString(date, xyCenter, yposDate, true);
+
+    } else {
+      // For > 1 extra timezones, list as columns / rows
+      g.setFont(font, secondaryRowColFontSize);
       g.setFontAlign(-1, 0);
       g.drawString(offsets[i][0], xcol1, yposWorld + i * 15, true);
       g.setFontAlign(1, 0);
       g.drawString(`${hours}:${minutes}`, xcol2, yposWorld + i * 15, true);
-    //g.drawString(gmt, xyCenter, yposWorld, true);
+    }
   }
 }
 
@@ -78,11 +108,11 @@ Bangle.loadWidgets();
 Bangle.drawWidgets();
 
 // refesh every 15 sec when screen is on
-Bangle.on('lcdPower',on=>{
+Bangle.on("lcdPower", (on) => {
   if (secondInterval) clearInterval(secondInterval);
   secondInterval = undefined;
   if (on) {
-    secondInterval = setInterval(drawSimpleClock, 15E3);
+    secondInterval = setInterval(drawSimpleClock, 15e3);
     drawSimpleClock(); // draw immediately
   }
 });
@@ -90,9 +120,8 @@ Bangle.on('lcdPower',on=>{
 // draw now and every 15 sec until display goes off
 drawSimpleClock();
 if (Bangle.isLCDOn()) {
-  secondInterval = setInterval(drawSimpleClock, 15E3);
+  secondInterval = setInterval(drawSimpleClock, 15e3);
 }
 
 // Show launcher when middle button pressed
 setWatch(Bangle.showLauncher, BTN2, { repeat: false, edge: "falling" });
-