javascript
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tentone.escher.js
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    <h1 class="page-title">Source: objects/Box.js</h1>

    
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            <pre class="prettyprint source linenums"><code>import {Object2D} from "../Object2D.js";
import {Vector2} from "../math/Vector2.js";
import {Box2} from "../math/Box2.js";

/**
 * Box object draw a rectangular object.
 *
 * Can be used as a base to implement other box objects, already implements collision for pointer events.
 *
 * @class
 * @extends {Object2D}
 */
function Box()
{
	Object2D.call(this);

	/**
	 * Box object containing the size of the object.
	 */
	this.box = new Box2(new Vector2(-50, -50), new Vector2(50, 50));

	/**
	 * Style of the object border line.
	 *
	 * If set null it is ignored.
	 */
	this.strokeStyle = "#000000";

	/**
	 * Line width, only used if a valid strokeStyle is defined.
	 */
	this.lineWidth = 1;

	/**
	 * Background color of the box.
	 *
	 * If set null it is ignored.
	 */
	this.fillStyle = "#FFFFFF";
}

Box.prototype = Object.create(Object2D.prototype);

Box.prototype.onPointerEnter = function(pointer, viewport)
{
	this.fillStyle = "#CCCCCC";
};

Box.prototype.onPointerLeave = function(pointer, viewport)
{
	this.fillStyle = "#FFFFFF";
};

Box.prototype.isInside = function(point)
{
	return this.box.containsPoint(point);
};

Box.prototype.draw = function(context, viewport, canvas)
{
	var width = this.box.max.x - this.box.min.x;
	var height = this.box.max.y - this.box.min.y;

	if(this.fillStyle !== null)
	{	
		context.fillStyle = this.fillStyle;
		context.fillRect(this.box.min.x, this.box.min.y, width, height);
	}

	if(this.strokeStyle !== null)
	{
		context.lineWidth = this.lineWidth;
		context.strokeStyle = this.strokeStyle;
		context.strokeRect(this.box.min.x, this.box.min.y, width, height);
	}
};

export {Box};
</code></pre>
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