Create widget.js

apps/widdaysleft/widget.js

@@ -0,0 +1,78 @@
+const storage = require('Storage');
+let settings;
+let height = 23;
+let width = 34;
+
+var debug = 0; //1 = show debug info
+
+settings = storage.readJSON('daysleft.json',1); //read storage
+if (!settings) print("no daysleft.json found"); 
+var i = 0;
+const oneDay = 24 * 60 * 60 * 1000; // hours*minutes*seconds*milliseconds
+const today = new Date(); //includes current time
+const currentYear = today.getFullYear();
+const currentMonth = today.getMonth();
+const currentDay = today.getDate();
+const todayMorning = new Date (currentYear, currentMonth, currentDay, 0, 0, 0); //create date object with today, but 00:00:00
+do {
+    var target = settings[i];
+    if (target) {
+        var dd = target.day,
+            mm = target.month-1, //-1 because month is zero-based
+            yy = target.year;
+        const targetDate = new Date(yy, mm, dd); //is 00:00
+        i += 1;
+    }
+} while (target && todayMorning >= targetDate);
+
+const diffDays = (target ? (targetDate - todayMorning) / oneDay : 0); //calculate day difference
+
+function drawWidget() {
+  if (debug == 1) g.drawRect(this.x,this.y,this.x+width,this.y+height); //draw rectangle around widget area
+  g.reset();
+
+  //define font size and string position
+  //small if number has more than 3 digits (positive number)
+  if (diffDays >= 1000) {
+    g.setFont("6x8", 1);
+    g.drawString(diffDays,this.x+10,this.y+7);
+  }
+  //large if number has 3 digits (positive number)
+  if (diffDays <= 999 && diffDays >= 100) {
+    g.setFont("6x8", 2);
+    g.drawString(diffDays,this.x,this.y+4);
+  }
+  //large if number has 2 digits (positive number)
+  if (diffDays <= 99 && diffDays >= 10) {
+    g.setFont("6x8", 2);
+    g.drawString(diffDays,this.x+6,this.y+4);
+  }
+  //large if number has 1 digit (positive number)
+  if (diffDays <= 9 && diffDays >= 0) {
+    g.setFont("6x8", 2);
+    g.drawString(diffDays,this.x+13,this.y+4);
+  }
+  //large if number has 1 digit (negative number)
+  if (diffDays <= -1 && diffDays >= -9) {
+    g.setFont("6x8", 2);
+    g.drawString(diffDays,this.x+5,this.y+4);
+  }
+  //large if number has 2 digits (negative number)
+  if (diffDays <= -10 && diffDays >= -99) {
+    g.setFont("6x8", 2);
+    g.drawString(diffDays,this.x,this.y+4);
+  }
+  //large if number has 3 digits or more (negative number)
+  if (diffDays <= -100) {
+    g.setFont("6x8", 1);
+    g.drawString(diffDays,this.x,this.y+7);
+  }
+}
+
+//draw widget
+WIDGETS["widdaysl"]={area:"tl",width:width,draw:drawWidget};
+
+setTimeout(function() {
+    Bangle.loadWidgets();
+    WIDGETS["widdaysl"].draw(WIDGETS["widdaysl"]);
+  }, todayMorning + oneDay - today + 1000); // update at next noon