initial commit

source/Background/IBackground.mc

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+import Toybox.Graphics;
+import Toybox.Lang;
+import Toybox.WatchUi;
+
+class IBackground extends Drawable {
+
+    typedef BackgroundParams as {
+        :Identifier as Object,
+    };
+
+    enum BackgroundStyleType {
+        SOLID_BACKGROUND,
+    }
+
+    static function getBackground(style as BackgroundStyleType) as IBackground {
+        switch (style) {
+            case SOLID_BACKGROUND:
+            default:
+                return new SolidBackground({});
+        }
+    }
+
+    function initialize(options as BackgroundParams) {
+        Drawable.initialize({:identifier => options[:Identifier]});
+    }
+
+    function draw(dc as Dc) as Void {
+        drawBackground(dc);
+    }
+
+    function drawBackground(dc as Dc) as Void {}
+}

source/Background/SolidBackground.mc

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+import Toybox.Graphics;
+import Toybox.Lang;
+import Toybox.WatchUi;
+
+class SolidBackground extends IBackground {
+
+    var Color as ColorType;
+
+    typedef SolidBackgroundParams as {
+        :BackgroundParams as IBackground.BackgroundParams,
+        :Color as ColorType,
+    };
+
+    function initialize(options as SolidBackgroundParams) {
+        IBackground.initialize(getOrElse(options[:BackgroundParams], {}));
+
+        Color = getOrElse(options[:Color], Graphics.COLOR_BLACK);
+    }
+
+    function drawBackground(dc as Dc) as Void {
+        dc.setColor(Graphics.COLOR_TRANSPARENT, Color);
+        dc.clear();
+    }
+}

source/Hands/IHands.mc

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+ import Toybox.Graphics;
+ import Toybox.Lang;
+ import Toybox.System;
+ import Toybox.WatchUi;
+ 
+ class IHands extends Drawable {
+
+    var CenterShift as [Float, Float];
+    var Radius as Float;
+
+    typedef HandsParams as {
+        :CenterShift as [Float, Float],
+        :Identifier as Object,
+        :Radius as Float,
+    };
+
+    enum HandType {
+        HOURS_HAND,
+        MINUTES_HAND,
+        SECONDS_HAND,
+    }
+
+    enum HandStyleType {
+        SIMPLE_HANDS,
+    }
+
+    static function getHands(style as HandStyleType) as IHands {
+        switch (style) {
+            case SIMPLE_HANDS:
+            default:
+                return new SimpleHands({});
+        }
+    }
+
+    function initialize(options as HandsParams) {
+        Drawable.initialize({:identifier => options[:Identifier]});
+
+        CenterShift = getOrElse(options[:CenterShift], [0.0, 0.0]);
+        Radius = getOrElse(options[:Radius], 0.9);
+    }
+
+    function draw(dc as Dc) as Void {
+        var now = System.getClockTime();
+        
+        var center = getCenter(dc);
+        var length = Radius * min(center[0], center[1]);
+
+        var hourAngle = (now.hour % 12 + now.min / 60.0) * 30.0;
+        drawHand(dc, center[0], center[1], hourAngle, length, HOURS_HAND);
+
+        var minutesAngle = now.min * 6.0;
+        drawHand(dc, center[0], center[1], minutesAngle, length, MINUTES_HAND);
+
+        var secondsAngle = now.sec * 6.0;
+        drawHand(dc, center[0], center[1], secondsAngle, length, SECONDS_HAND);
+    }
+
+    function drawHand(dc as Dc, x as Float, y as Float, angle as Float, length as Float, handType as HandType) as Void {}
+
+    function getCenter(dc as Dc) as [Float, Float] {
+        return [dc.getWidth() / 2.0 + CenterShift[0], dc.getHeight() / 2.0 + CenterShift[1]];
+    }
+ }

source/Hands/SimpleHands.mc

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+import Toybox.Graphics;
+import Toybox.Lang;
+
+class SimpleHands extends IHands {
+
+    var Color as ColorType;
+    var SecondsColor as ColorType;
+
+    typedef SimpleHandsParams as {
+        :HandsParams as IHands.HandsParams,
+        :Color as ColorType,
+        :SecondsColor as ColorType,
+    };
+
+    function initialize(options as SimpleHandsParams) {
+        IHands.initialize(getOrElse(options[:HandsParams], {}));
+        
+        Color = getOrElse(options[:Color], Graphics.COLOR_WHITE);
+        SecondsColor = getOrElse(options[:SecondsColor], Graphics.COLOR_RED);
+    }
+
+    function drawHand(dc as Dc, x as Float, y as Float, angle as Float, length as Float, handType as IHands.HandType) as Void {
+        var rad = (angle - 90) * Math.PI / 180.0;
+        var color = getColor(handType);
+        length *= getLenght(handType);
+
+        dc.setColor(color, color);
+        dc.drawLine(x, y, x + length * Math.cos(rad), y + length * Math.sin(rad));
+    }
+
+    private function getColor(handType as IHands.HandType) as ColorType {
+        switch (handType) {
+            case SECONDS_HAND:
+                return SecondsColor;
+            default:
+                return Color;
+        }
+    }
+
+    private function getLenght(handType as IHands.HandType) as Float {
+        switch (handType) {
+            case HOURS_HAND:
+                return 0.7;
+            default:
+                return 1.0;
+        }
+    }
+}

source/Utils.mc

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+import Toybox.Lang;
+
+typedef Numeric as Number or Float or Long or Double;
+
+// no types here, because this is generic, which are not supported by language
+function getOrElse(value, defaultValue) {
+    if (value == null) {
+        return defaultValue;
+    } else {
+        return value;
+    }
+}
+
+function min(left as Numeric, right as Numeric) as Numeric {
+    if (left < right) {
+        return left;
+    } else {
+        return right;
+    }
+}

source/wfApp.mc

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+import Toybox.Application;
+import Toybox.Lang;
+import Toybox.WatchUi;
+
+class wfApp extends Application.AppBase {
+
+    function initialize() {
+        AppBase.initialize();
+    }
+
+    // onStart() is called on application start up
+    function onStart(state as Dictionary?) as Void {
+    }
+
+    // onStop() is called when your application is exiting
+    function onStop(state as Dictionary?) as Void {
+    }
+
+    // Return the initial view of your application here
+    function getInitialView() as [Views] or [Views, InputDelegates] {
+        return [ new wfView() ];
+    }
+
+    // New app settings have been received so trigger a UI update
+    function onSettingsChanged() as Void {
+        WatchUi.requestUpdate();
+    }
+
+}
+
+function getApp() as wfApp {
+    return Application.getApp() as wfApp;
+}

source/wfView.mc

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+import Toybox.Application;
+import Toybox.Graphics;
+import Toybox.Lang;
+import Toybox.System;
+import Toybox.WatchUi;
+
+class wfView extends WatchUi.WatchFace {
+
+    private var hands as IHands;
+    private var background as IBackground;
+
+    function initialize() {
+        WatchFace.initialize();
+        
+        hands = IHands.getHands(IHands.SIMPLE_HANDS);
+        background = IBackground.getBackground(IBackground.SOLID_BACKGROUND);
+    }
+
+    // Load your resources here
+    function onLayout(dc as Dc) as Void {
+    }
+
+    // Called when this View is brought to the foreground. Restore
+    // the state of this View and prepare it to be shown. This includes
+    // loading resources into memory.
+    function onShow() as Void {
+    }
+
+    // Update the view
+    function onUpdate(dc as Dc) as Void {
+        background.draw(dc);
+        hands.draw(dc);
+    }
+
+    // Called when this View is removed from the screen. Save the
+    // state of this View here. This includes freeing resources from
+    // memory.
+    function onHide() as Void {
+    }
+
+    // The user has just looked at their watch. Timers and animations may be started here.
+    function onExitSleep() as Void {
+    }
+
+    // Terminate any active timers and prepare for slow updates.
+    function onEnterSleep() as Void {
+    }
+
+}