- added app widdevst

apps/widdevst/ChangeLog

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+0.01: First version

apps/widdevst/README.md

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+# Device Status Widget
+
+This widget shows a rectangle containing
+
+- `B` if Bluetooth is on
+- `C` if the compass is on
+- `G` if GPS is on
+- `H` if the heart rate monitor is on
+
+at fixed positions, and two bars
+
+- left to right: usage of Flash storage
+- bottom to top: usage of RAM
+
+in green if below 50%, orange if between 50% and 80%, and red if above 80%.

apps/widdevst/metadata.json

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+{ "id": "widdevst",
+  "name": "Device Status Widget",
+  "version": "0.01",
+  "description": "Shows power status of Bluetooth, Compass, GPS and Heart Rate Monitor as well as storage and memory usage.",
+  "icon": "icon.png",
+  "type": "widget",
+  "tags": "widget,bluetooth,compass,gps,hrm",
+  "supports": ["BANGLEJS"],
+  "readme": "README.md",
+  "storage": [
+    {"name": "widdevst.wid.js", "url": "wid.js"}
+  ]
+}

apps/widdevst/wid.js

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+(() => {
+  WIDGETS.stat = {area: "tr", width: 21, draw: function() {
+    var x = this.x;
+    var y = this.y;
+    g.reset();
+    g.clearRect(x, y, x + 20, y + 23);
+    g.drawRect(x + 1, y + 1, x + 19, y + 22);
+    g.setFont('6x8', 1);
+    if (NRF.getSecurityStatus().connected) g.drawString('B', x + 4, y + 3);
+    if (Bangle.isCompassOn()) g.drawString('C', x + 12, y + 3);
+    if (Bangle.isGPSOn()) g.drawString('G', x + 4, y + 13);
+    if (Bangle.isHRMOn()) g.drawString('H', x + 12, y + 13);
+    var t = require('Storage').getStats();
+    var u = t.fileBytes / t.totalBytes;
+    g.setColor(col(u)); g.drawRect(x + 1, y + 22, x + 1 + u * 18, y + 23);
+    t = process.memory(false);
+    u = t.usage / t.total;
+    g.setColor(col(u)); g.drawRect(x, y + 22 - u * 21, x + 1, y + 22);
+  }};
+
+  function col(p) {
+    return p < 0.5 ? '#0f0' : (p < 0.8 ? '#f80' : '#f00');
+  }
+
+  var draw = WIDGETS.stat.draw.bind(WIDGETS.stat);
+  var iid = setInterval(draw, 2000);
+
+  Bangle.on('lcdPower', (on) => {
+    if (on) {
+      draw();
+      if (!iid) iid = setInterval(draw, 2000);
+    } else if (iid) iid = clearInterval(iid);
+  });
+})();