Add menu to allow altitude to be calibrated

Author: gfwilliams

apps/setting/ChangeLog

@@ -84,3 +84,4 @@ of 'Select Clock'
 0.73: Fix `const` bug / work with fastload
 0.74: Add extra layer of checks before allowing a factory reset (fix #3476)
 0.75: Restore previous menu's scroll positions
+0.76: Add altitude calibration menu (and update README after menu changed)

apps/setting/README.md

@@ -1,20 +1,32 @@
 # Settings
 
-This is Bangle.js's settings menu
+This is Bangle.js's main settings menu:
+
+* **Apps** - Settings for installed apps/widgets
+* **System** - Settings related to themes, default apps, date & time, etc
+* **Bluetooth** - Bluetooth Settings menu - see below.
+* **Alerts** - Set how Bangle.js alerts you (including Quiet mode)
+* **Utils** - Utilities, including resetting settings
+
+See below for options under each heading:
+
+## System - System settings
+
+* **Theme** Adjust the colour scheme
+* **LCD** Configure settings about the screen. How long it stays on, how bright it is, and when it turns on - see below.
+* **Locale** set time zone, the time format (12/24h, for supported clocks) and the first day of the week
+* **Clock** if you have more than one clock face, select the default one
+* **Launcher** if you have more than one app launcher, select the default one
+* **Date & Time** Configure the current time - Note that this can be done much more easily by choosing 'Set Time' from the App Loader
+* **Altitude** On Bangle.js 2, adjust the altitude (
+
+## Alerts
 
-* **App/Widget Settings** settings specific to installed applications
-* **BLE** Bluetooth Settings menu - see below.
 * **Beep** most Bangle.js do not have a speaker inside, but they can use the vibration motor to beep in different pitches. You can change the behaviour here to use a Piezo speaker if one is connected
 * **Vibration** enable/disable the vibration motor
 * **Quiet Mode** prevent notifications/alarms from vibrating/beeping/turning the screen on - see below
-* **Locale** set time zone, the time format (12/24h, for supported clocks) and the first day of the week
-* **Select Clock** if you have more than one clock face, select the default one
-* **Date & Time** Configure the current time - Note that this can be done much more easily by choosing 'Set Time' from the App Loader
-* **LCD** Configure settings about the screen. How long it stays on, how bright it is, and when it turns on - see below.
-* **Theme** Adjust the colour scheme
-* **Utils** Utilities - including resetting settings (see below)
 
-## BLE - Bluetooth Settings
+## Bluetooth
 
 * **Make Connectable** regardless of the current Bluetooth settings, makes Bangle.js so you can connect to it (while the window is up)
 * **BLE** is Bluetooth LE enabled and the watch connectable?

apps/setting/metadata.json

@@ -1,7 +1,7 @@
 {
   "id": "setting",
   "name": "Settings",
-  "version": "0.75",
+  "version": "0.76",
   "description": "A menu for setting up Bangle.js",
   "icon": "settings.png",
   "tags": "tool,system",

apps/setting/settings.js

@@ -1,4 +1,3 @@
-{
 Bangle.loadWidgets();
 Bangle.drawWidgets();
 
@@ -110,7 +109,6 @@ function mainMenu() {
 }
 
 function systemMenu() {
-
   const mainmenu = {
     '': { 'title': /*LANG*/'System' },
     '< Back': ()=>popMenu(mainMenu()),
@@ -121,6 +119,7 @@ function systemMenu() {
     /*LANG*/'Launcher': ()=>pushMenu(launcherMenu()),
     /*LANG*/'Date & Time': ()=>pushMenu(setTimeMenu())
   };
+  if (Bangle.getPressure) mainmenu[/*LANG*/"Altitude"] = ()=>pushMenu(showAltitude());
 
   return mainmenu;
 }
@@ -1030,5 +1029,45 @@ function showTouchscreenCalibration() {
   showTapSpot();
 }
 
-pushMenu(mainMenu());
+// Calibrate altitude - Bangle.js2 only
+function showAltitude() {
+  function onPressure(pressure) {
+    menuPressure.value = Math.round(pressure.pressure);
+    menuAltitude.value = Math.round(pressure.altitude);
+    m.draw();
+  }
+  Bangle.setBarometerPower(1,"settings");
+  Bangle.on("pressure",onPressure);
+  var seaLevelPressure = Bangle.getOptions().seaLevelPressure;
+  if (!isFinite(seaLevelPressure)) seaLevelPressure=1013.25;
+  var menuPressure = {value:"-"};
+  var menuAltitude = {value:"-"};
+  var m = E.showMenu({ "" : {title:/*LANG*/"Altitude",back:() => {
+      Bangle.setBarometerPower(0,"settings");
+      Bangle.removeListener("pressure",onPressure);
+      settings.seaLevelPressure = seaLevelPressure;
+      updateSettings();
+      popMenu(systemMenu());
+    }},
+    /*LANG*/"Pressure (hPa)" : menuPressure,
+    /*LANG*/"Altitude (m)" : menuAltitude,
+    /*LANG*/"Adjust up" : function() {
+      Bangle.buzz(80);
+      seaLevelPressure++;
+      Bangle.setOptions({seaLevelPressure:seaLevelPressure});
+    },
+    /*LANG*/"Adjust down" : function() {
+      Bangle.buzz(80);
+      seaLevelPressure--;
+      Bangle.setOptions({seaLevelPressure:seaLevelPressure});
+    },
+    /*LANG*/"Set Default" : function() {
+      Bangle.buzz();
+      seaLevelPressure=1013.25;
+      Bangle.setOptions({seaLevelPressure:seaLevelPressure});
+    }
+  });
 }
+
+// Show the main menu
+pushMenu(mainMenu());