mirror of https://github.com/espruino/BangleApps
99 lines
3.1 KiB
JavaScript
99 lines
3.1 KiB
JavaScript
(() => {
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var settings = {};
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var hasFix = false;
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var fixToggle = false; // toggles once for each reading
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var gpsTrack; // file for GPS track
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var gpsOn = false;
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var lastFixTime = Date.now();
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// draw your widget
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function draw() {
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if (!settings.recording) return;
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g.reset();
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g.drawImage(atob("GBgCAAAAAAAAAAQAAAAAAD8AAAAAAP/AAAAAAP/wAAAAAH/8C9AAAB/8L/QAAAfwv/wAAAHS//wAAAAL//gAAAAf/+AAAAAf/4AAAAL//gAAAAD/+DwAAAB/Uf8AAAAfA//AAAACAf/wAAAAAH/0AAAAAB/wAAAAAAfAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"),this.x,this.y);
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if (hasFix) {
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g.setColor("#00FF00");
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g.drawImage(fixToggle ? atob("CgoCAAAAA0AAOAAD5AAPwAAAAAAAAAAAAAAAAA==") : atob("CgoCAAABw0AcOAHj5A8PwHwAAvgAB/wABUAAAA=="),this.x,this.y+14);
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} else {
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g.setColor("#0000FF");
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if (fixToggle)
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g.setFont("6x8").drawString("?",this.x,this.y+14);
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}
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}
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function onGPS(fix) {
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hasFix = fix.fix;
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fixToggle = !fixToggle;
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WIDGETS["gpsrec"].draw();
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if (hasFix) {
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var period = fix.time.getTime() - lastFixTime;
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if (period+500 > settings.period*1000) { // round up
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lastFixTime = fix.time.getTime();
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try {
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if (gpsTrack) gpsTrack.write([
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fix.time.getTime(),
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fix.lat.toFixed(6),
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fix.lon.toFixed(6),
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fix.alt
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].join(",")+"\n");
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} catch(e) {
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// If storage.write caused an error, disable
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// GPS recording so we don't keep getting errors!
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console.log("gpsrec: write error", e);
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settings.recording = false;
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require("Storage").write("gpsrec.json", settings);
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reload();
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}
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}
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}
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}
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// Called by the GPS app to reload settings and decide what to do
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function reload() {
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settings = require("Storage").readJSON("gpsrec.json",1)||{};
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settings.period = settings.period||10;
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settings.file |= 0;
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Bangle.removeListener('GPS',onGPS);
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var gOn = false;
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if (settings.recording) {
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WIDGETS["gpsrec"].width = 24;
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Bangle.on('GPS', onGPS);
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var n = settings.file.toString(36);
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gpsTrack = require("Storage").open(".gpsrc"+n,"a");
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gOn = true;
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} else {
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WIDGETS["gpsrec"].width = 0;
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gpsTrack = undefined;
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}
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if (gOn != gpsOn) {
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Bangle.setGPSPower(gOn,"gpsrec");
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gpsOn = gOn;
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}
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}
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// add the widget
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WIDGETS["gpsrec"]={area:"tl",width:24,draw:draw,reload:function() {
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reload();
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Bangle.drawWidgets(); // relayout all widgets
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},plotTrack:function(m) { // m=instance of openstmap module
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// if we're here, settings was already loaded
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var n = settings.file.toString(36);
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var f = require("Storage").open(".gpsrc"+n,"r");
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var l = f.readLine(f);
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if (l===undefined) return;
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var c = l.split(",");
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var mp = m.latLonToXY(+c[1], +c[2]);
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g.moveTo(mp.x,mp.y);
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l = f.readLine(f);
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while(l!==undefined) {
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c = l.split(",");
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mp = m.latLonToXY(+c[1], +c[2]);
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g.lineTo(mp.x,mp.y);
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g.fillCircle(mp.x,mp.y,2); // make the track more visible
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l = f.readLine(f);
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}
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}};
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// load settings, set correct widget width
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reload();
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})()
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