Bounds with specs

spec/runner.html

@@ -18,10 +18,10 @@
 		<script type="text/javascript" src="../src/core/Util.js"></script>
 		<script type="text/javascript" src="../src/core/Class.js"></script>
 		<script type="text/javascript" src="../src/core/Events.js"></script>
-		<script type="text/javascript" src="../src/core/Options.js"></script>
 
 		<!-- /geometry -->
 		<script type="text/javascript" src="../src/geometry/Point.js"></script>
+		<script type="text/javascript" src="../src/geometry/Bounds.js"></script>
 		<script type="text/javascript" src="../src/geometry/Transformation.js"></script>
 
 		<!-- /geo -->
@@ -41,10 +41,10 @@
 		<script type="text/javascript" src="suites/core/UtilSpec.js"></script>
 		<script type="text/javascript" src="suites/core/ClassSpec.js"></script>
 		<script type="text/javascript" src="suites/core/EventsSpec.js"></script>
-		<script type="text/javascript" src="suites/core/OptionsSpec.js"></script>
 
 		<!-- /geometry -->
 		<script type="text/javascript" src="suites/geometry/PointSpec.js"></script>
+		<script type="text/javascript" src="suites/geometry/BoundsSpec.js"></script>
 		<script type="text/javascript" src="suites/geometry/TransformationSpec.js"></script>
 
 		<!-- /geo -->

spec/suites/geometry/BoundsSpec.js

@@ -0,0 +1,43 @@
+describe('Bounds', function() {
+	var a, b;
+	
+	beforeEach(function() {
+		a = new L.Bounds(
+			new L.Point(14, 12),
+			new L.Point(30, 40));
+		b = new L.Bounds([
+   			new L.Point(20, 12),
+   			new L.Point(14, 20),
+   			new L.Point(30, 40)
+   		]);
+	});
+	
+	describe('constructor', function() {
+		it('should create bounds with proper min & max on (Point, Point)', function() {
+			expect(a.min).toEqual(new L.Point(14, 12));
+			expect(a.max).toEqual(new L.Point(30, 40));
+		});
+		it('should create bounds with proper min & max on (Point[])', function() {
+			expect(b.min).toEqual(new L.Point(14, 12));
+			expect(b.max).toEqual(new L.Point(30, 40));
+		});
+	});
+	
+	describe('#extend', function() {
+		it('should extend the bounds to contain the given point', function() {
+			a.extend(new L.Point(50, 20));
+			expect(a.min).toEqual(new L.Point(14, 12));
+			expect(a.max).toEqual(new L.Point(50, 40));
+			
+			b.extend(new L.Point(25, 50));
+			expect(b.min).toEqual(new L.Point(14, 12));
+			expect(b.max).toEqual(new L.Point(30, 50));
+		});
+	});
+	
+	describe('#getCenter', function() {
+		it('should return the center point', function() {
+			expect(a.getCenter()).toEqual(new L.Point(22, 26));
+		});
+	});
+});

src/geometry/Bounds.js

@@ -0,0 +1,38 @@
+/*
+ * L.Bounds represents a rectangular area on the screen in pixel coordinates.
+ */
+
+L.Bounds = L.Class.extend({
+	initialize: function(min, max) { 	//(Point, Point) or Point[]
+		var points = (min instanceof Array ? min : [min, max]);
+		for (var i = 0, len = points.length; i < len; i++) {
+			this.extend(points[i]);
+		}
+	},
+
+	// extend the bounds to contain the given point
+	extend: function(/*Point*/ point) {
+		if (!this.min && !this.max) {
+			this.min = new L.Point(point.x, point.y);
+			this.max = new L.Point(point.x, point.y);
+		} else {
+			this.min.x = Math.min(point.x, this.min.x);
+			this.max.x = Math.max(point.x, this.max.x);
+			this.min.y = Math.min(point.y, this.min.y);
+			this.max.y = Math.max(point.y, this.max.y);
+		}
+	},
+	
+	getCenter: function(round)/*->Point*/ {
+		return new L.Point(
+				(this.min.x + this.max.x) / 2, 
+				(this.min.y + this.max.y) / 2, round);
+	},
+	
+	contains: function(/*Bounds*/ bounds)/*->Boolean*/ {
+		return (bounds.min.x >= this.min.x) && 
+				(bounds.max.x <= this.max.x) &&
+				(bounds.min.y >= this.min.y) && 
+				(bounds.max.y <= this.max.y);
+	}
+});