mirror of https://github.com/espruino/BangleApps
144 lines
3.9 KiB
JavaScript
144 lines
3.9 KiB
JavaScript
//WIDGETS = {}; // <-- for development only
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(() => {
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// persistant vals
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let storedData;
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let settings;
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function loadSettings() { // stolen from https://github.com/espruino/BangleApps/blob/master/apps/widpedom/widget.js
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const d = require('Storage').readJSON("widbgjs.settings.json", 1) || {};
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settings = Object.assign({
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'unitIsMmol': true,
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'expireThreshold': 600000,
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'reloadInterval': 5 * 60000,
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'hide': false
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}, d || {});
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return d;
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}
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function loadVals() {
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try {
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const d = require('Storage').readJSON("widbgjs.json", 1) || {};
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storedData = Object.assign({
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'bg': null,
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'bgTimeStamp': null,
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'bgDirection': null
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}, d || {});
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return d;
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} catch(e) {
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Bangle.removeFile("widbgjs.json");
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}
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return null;
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}
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function calculateRotation(bgDirection) {
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var a = 90;
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// get the arrow right (https://github.com/StephenBlackWasAlreadyTaken/NightWatch/blob/6de1d3775c6e447177c12f387f647628cc8e24ce/mobile/src/main/java/com/dexdrip/stephenblack/nightwatch/Bg.java)
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switch (bgDirection) {
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case ("DoubleDown"):
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g.setColor("#f00");
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a = 180;
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break;
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case ("SingleDown"):
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a = 180;
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break;
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case ("DoubleUp"):
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g.setColor("#f00");
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a = 0;
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break;
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case ("SingleUp"):
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a = 0;
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break;
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case ("FortyFiveUp"):
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a = 45;
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break;
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case ("FortyFiveDown"):
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a = 135;
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break;
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case ("Flat"):
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a = 90;
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break;
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}
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// turn the arrow thanks to (https://forum.espruino.com/conversations/344607/)
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const p180 = Math.PI / 180;
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// a is defined above
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var r = 21;
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var x = r * Math.sin(a * p180);
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var y = r * Math.cos(a * p180);
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return a * p180;
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}
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function getBG(bg) {
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var tmp = null;
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try {
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if (storedData.bg !== null) {
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tmp = bg;
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if (settings.unitIsMmol) {
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tmp /= 18;
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tmp = tmp.toFixed(1);
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}
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}
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} catch (e) { }
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return tmp;
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}
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function isBgTooOld(bgTimeStamp) {
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var currTimeInMilli = new Date().valueOf();
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try {
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if (bgTimeStamp === null) {
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return true;
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}
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if (currTimeInMilli - settings.expireThreshold <= bgTimeStamp) {
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return false;
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}
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} catch (e) { }
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return true;
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}
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function draw() {
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loadSettings();
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try {
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if (settings.hide) return;
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} catch (e) { }
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loadVals();
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outpt = getBG(storedData.bg);
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if (outpt === null) { // this means no value has been received yet
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outpt = "BG";
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bgTimeStamp = "0";
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}
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// prepare to write on the screen
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g.reset().clearRect(this.x, this.y, this.x + this.width, this.y + 23); // erase background
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g.setFont('Vector', 22);
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g.setColor(g.theme.fg);
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// check if the value is too old
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if (!isBgTooOld(storedData.bgTimeStamp)) {
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g.drawImage(atob("FBQBAGAADwAB+AA/wAduAGZgAGAABgAAYAAGAABgAAYAAGAABgAAYAAGAABgAAYAAGAABgA="), this.x + 60, this.y + 9, { rotate: calculateRotation(storedData.bgDirection) });
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}
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g.setColor(g.theme.fg).drawString(outpt, this.x + 5, this.y);
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}
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setInterval(function () {
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WIDGETS["widbgjs"].draw(WIDGETS["widbgjs"]);
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}, 5 * 60000); // update every 5 minutes (%* 60000
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// add your widget
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WIDGETS["widbgjs"] = {
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area: "tl",
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width: 72,
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draw: draw
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};
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})();
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//Bangle.drawWidgets(); // <-- for development only
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