initial commit

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];
+
+    enum HandType {
+        HOURS,
+        MINUTES,
+        SECONDS,
+    }
+
+    typedef HandsParams as {
+        :CenterShift as [Float, Float],
+        :Identifier as Object,
+    };
+
+    function initialize(options as HandsParams) {
+        Drawable.initialize({:identifier => options[:Identifier]});
+
+        CenterShift = getOrElse(options[:CenterShift], [0.0, 0.0]);
+    }
+
+    function draw(dc as Dc) as Void {
+        var now = System.getClockTime();
+        
+        var center = getCenter(dc);
+        var length = 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);
+
+        var minutesAngle = now.min * 6.0;
+        drawHand(dc, center[0], center[1], minutesAngle, length, MINUTES);
+
+        var secondsAngle = now.sec * 6.0;
+        drawHand(dc, center[0], center[1], secondsAngle, length, SECONDS);
+    }
+
+    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

@@ -0,0 +1,48 @@
+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 IHands.SECONDS:
+                return SecondsColor;
+            default:
+                return Color;
+        }
+    }
+
+    private function getLenght(handType as IHands.HandType) as Float {
+        switch (handType) {
+            case IHands.HOURS:
+                return 0.6;
+            default:
+                return 0.9;
+        }
+    }
+}