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apps/mosaic/ChangeLog

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+0.01: First release

apps/mosaic/metadata.json

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+{
+    "id":"mosaic",
+    "name":"Mosaic Clock",
+    "shortName": "Mosaic Clock",
+    "version": "0.01",
+    "description": "A fabulously colourful clock",
+    "readme": "README.md",
+    "icon":"mosaic.png",
+    "screenshots": [{"url":"mosaic-scr1.png"},{"url":"mosaic-scr2.png"}],
+    "type": "clock",
+    "tags": "clock",
+    "supports": ["BANGLEJS", "BANGLEJS2"],
+    "allow_emulator": true,
+    "storage": [
+      {"name":"mosaic.app.js","url":"mosaic.app.js"},
+      {"name":"mosaic.settings.js","url":"mosaic.settings.js"},
+      {"name":"mosaic.img","url":"mosaic.icon.js","evaluate":true}
+    ]
+  }

apps/mosaic/mosaic.app.js

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+Array.prototype.sample = function(){
+  return this[Math.floor(Math.random()*this.length)];
+};
+
+const SETTINGS_FILE = "mosaic.settings.json";
+let settings;
+let theme;
+let timeout = 60;
+let drawTimeout;
+let colours = [
+  '#f00', '#00f', '#0f0', '#ff0', '#f0f', '#0ff',
+  '#8f0', '#f08', '#f80', '#80f', '#0f8', '#08f',
+];
+let digits = [
+  E.toArrayBuffer(atob("BQcB/Gtax+A=")),
+  E.toArrayBuffer(atob("BQeCAX9c1zXNc1zX9A==")),
+  E.toArrayBuffer(atob("BQcB/Hsbx+A=")),
+  E.toArrayBuffer(atob("BQcB/Hsex+A=")),
+  E.toArrayBuffer(atob("BQeCAf/zPM8D/Nc1/A==")),
+  E.toArrayBuffer(atob("BQcB/G8ex+A=")),
+  E.toArrayBuffer(atob("BQcB/G8ax+A=")),
+  E.toArrayBuffer(atob("BQeCAf/wP81zXNc1/A==")),
+  E.toArrayBuffer(atob("BQcB/Gsax+A=")),
+  E.toArrayBuffer(atob("BQcB/Gsex+A="))
+];
+
+function loadSettings() {
+  settings = require("Storage").readJSON(SETTINGS_FILE,1)|| {'showWidgets': false, 'theme':'System'};
+}
+
+function loadThemeColors() {
+  theme = {fg: g.theme.fg, bg: g.theme.bg};
+  if (settings.theme === "Dark") {
+    theme.fg = g.toColor(1,1,1);
+    theme.bg = g.toColor(0,0,0);
+  }
+  else if (settings.theme === "Light") {
+    theme.fg = g.toColor(0,0,0);
+    theme.bg = g.toColor(1,1,1);
+  }
+}
+
+function queueDraw(seconds) {
+  let millisecs = seconds * 1000;
+  if (drawTimeout) clearTimeout(drawTimeout);
+  drawTimeout = setTimeout(function() {
+    drawTimeout = undefined;
+    draw();
+  }, millisecs - (Date.now() % millisecs));
+}
+
+function draw() {
+  // draw colourful grid
+  for (let i_x = 0; i_x < num_squares_w; i_x++) {
+    for (let i_y = 0; i_y < num_squares_h; i_y++) {
+      g.setColor(colours.sample()).fillRect(
+        o_w+i_x*s, o_h+i_y*s, o_w+i_x*s+s, o_h+i_y*s+s
+      );
+    }
+  }
+  let t = new Date();
+  g.setBgColor(theme.fg);
+  g.setColor(theme.bg);
+  g.drawImage(digits[Math.floor(t.getHours()/10)], (mid_x-5)*s+o_w, (mid_y-7)*s+o_h, {scale:s});
+  g.drawImage(digits[t.getHours() % 10], (mid_x+1)*s+o_w, (mid_y-7)*s+o_h, {scale:s});
+  g.drawImage(digits[Math.floor(t.getMinutes()/10)], (mid_x-5)*s+o_w, (mid_y+1)*s+o_h, {scale:s});
+  g.drawImage(digits[t.getMinutes() % 10], (mid_x+1)*s+o_w, (mid_y+1)*s+o_h, {scale:s});
+
+  queueDraw(timeout);
+}
+
+g.clear();
+loadSettings();
+loadThemeColors();
+
+offset_widgets = settings.showWidgets ? 24 : 0;
+let available_height = g.getHeight() - offset_widgets;
+
+// Calculate grid size and offsets
+let s = Math.floor(available_height/17);
+let num_squares_w = Math.round(g.getWidth()/s) - 1;
+let num_squares_h = Math.round(available_height/s) - 1;
+let o_w = Math.floor((g.getWidth() - num_squares_w * s)/2);
+let o_h = Math.floor((g.getHeight() - num_squares_h * s+offset_widgets)/2);
+let mid_x = Math.floor(num_squares_w/2);
+let mid_y = Math.floor((num_squares_h-1)/2);
+
+draw();
+
+Bangle.on('lcdPower',on=>{
+  if (on) {
+    draw(); // draw immediately, queue redraw
+  } else { // stop draw timer
+    if (drawTimeout) clearTimeout(drawTimeout);
+    drawTimeout = undefined;
+  }
+});
+
+Bangle.setUI('clock');
+if (settings.showWidgets) {
+  Bangle.loadWidgets();
+  Bangle.drawWidgets();
+}

apps/mosaic/mosaic.icon.js

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+require("heatshrink").decompress(atob("mEwwcAtu27dt3MkyVJkgHC23UA4WSCP4R/CP4RFBAfSA4VJA4QCFCP4R/CP4RJ7oaMCP4R/CP4RFbge9BoYID3IQCkgR/CP4R/CIoA=="))

apps/mosaic/mosaic.settings.js

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+(function(back) {
+  const SETTINGS_FILE = "mosaic.settings.json";
+
+  // initialize with default settings...
+  let s = {'showWidgets': false, 'theme':'System'}
+
+  // ...and overwrite them with any saved values
+  // This way saved values are preserved if a new version adds more settings
+  const storage = require('Storage')
+  let settings = storage.readJSON(SETTINGS_FILE, 1) || s;
+  const saved = settings || {}
+  for (const key in saved) {
+    s[key] = saved[key]
+  }
+
+  function save() {
+    settings = s
+    storage.write(SETTINGS_FILE, settings)
+  }
+
+  var theme_options = ['System', 'Light', 'Dark'];
+
+  E.showMenu({
+    '': { 'title': 'Mosaic Clock' },
+    '< Back': back,
+    'Show Widgets': {
+      value: settings.showWidgets,
+      format: () => (settings.showWidgets ? 'Yes' : 'No'),
+      onchange: () => {
+        settings.showWidgets = !settings.showWidgets;
+        save();
+      }
+    },
+    'Theme': {
+      value: 0 | theme_options.indexOf(s.theme),
+      min: 0, max: theme_options.length - 1,
+      format: v => theme_options[v],
+      onchange: v => {
+        s.theme = theme_options[v];
+        save();
+      }
+    },
+  });
+})