BangleApps/apps/gpsrec/widget.js

74 lines
1.9 KiB
JavaScript

(() => {
var settings = {};
var hasFix = false;
var fixToggle = false; // toggles once for each reading
var gpsTrack; // file for GPS track
var periodCtr = 0;
// draw your widget
function draw() {
if (!settings.recording) return;
g.reset();
g.setFont("4x6");
g.setFontAlign(0,0);
g.clearRect(this.x,this.y,this.x+23,this.y+23);
g.setColor("#ff0000");
if (hasFix) {
if (fixToggle) {
g.fillCircle(this.x+11,this.y+11,9);
g.setColor("#000000");
} else
g.drawCircle(this.x+11,this.y+11,9);
} else {
g.drawString("NO",this.x+12,this.y+5);
g.drawString("FIX",this.x+12,this.y+19);
}
g.drawString("GPS",this.x+12,this.y+12);
}
function onGPS(fix) {
hasFix = fix.fix;
fixToggle = !fixToggle;
draw();
if (hasFix) {
periodCtr--;
if (periodCtr<=0) {
periodCtr = settings.period;
if (gpsTrack) gpsTrack.write([
fix.time.getTime(),
fix.lat.toFixed(5),
fix.lon.toFixed(5),
fix.alt
].join(",")+"\n");
}
}
}
// Called by the GPS app to reload settings and decide what to do
function reload() {
settings = require("Storage").readJSON("gpsrec.json",1)||{};
settings.period = settings.period||1;
settings.file |= 0;
Bangle.removeListener('GPS',onGPS);
if (settings.recording) {
WIDGETS["gpsrec"].width = 24;
Bangle.on('GPS',onGPS);
Bangle.setGPSPower(1);
var n = settings.file.toString(36);
gpsTrack = require("Storage").open(".gpsrc"+n,"a");
} else {
WIDGETS["gpsrec"].width = 0;
Bangle.setGPSPower(0);
gpsTrack = undefined;
}
}
// add the widget
WIDGETS["gpsrec"]={area:"tl",width:24,draw:draw,reload:function() {
reload();
Bangle.drawWidgets(); // relayout all widgets
}};
// load settings, set correct widget width
reload();
})()