javascript
/
tentone.escher.js
镜像自地址 https://github.com/tentone/escher.js.git


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164
							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>JSDoc: Source: objects/Pattern.js</title>

    <script src="scripts/prettify/prettify.js"> </script>
    <script src="scripts/prettify/lang-css.js"> </script>
    <!--[if lt IE 9]>
      <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
    <![endif]-->
    <link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
    <link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>

<body>

<div id="main">

    <h1 class="page-title">Source: objects/Pattern.js</h1>

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

/**
 * Pattern object draw a image repeated as a pattern.
 *
 * Its similar to the Image class but the image can be repeat infinitely.
 *
 * @class
 * @extends {Object2D}
 * @param {string} src Source image URL.
 */
function Pattern(src)
{
	Object2D.call(this);

	/**
	 * Box object containing the size of the object.
	 *
	 * @type {Box2}
	 */
	this.box = new Box2();

	/**
	 * Image source DOM element. Used as a source for the pattern image.
	 *
	 * This element can be replaced by one of other type (e.g canvas, video).
	 *
	 * @type {Element}
	 */
	this.image = document.createElement("img");

	/**
	 * Repetition indicates how the pattern image should be repeated.
	 *
	 * Possible values are "repeat", "repeat-x", "repeat-y" or "no-repeat".
	 *
	 * More information about this attribute here https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/createPattern.
	 *
	 * @type {string}
	 */
	this.repetition = "repeat"

	if(src !== undefined)
	{
		this.setImage(src);
	}
}

Pattern.prototype = Object.create(Object2D.prototype);
Pattern.prototype.constructor = Pattern;
Pattern.prototype.type = "Pattern";
Object2D.register(Pattern, "Pattern");

/**
 * Set the image source of the object. Can be anything accepted by the src field of an img element.
 *
 * Automatically sets the box size to match the image.
 *
 * @param {string} src Image source string.
 */
Pattern.prototype.setImage = function(src)
{
	var self = this;

	this.image.onload = function()
	{
		self.box.min.set(0, 0);
		self.box.max.set(this.naturalWidth, this.naturalHeight);
	};
	this.image.src = src;
};

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

Pattern.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.image.src.length > 0)
	{
		var pattern = context.createPattern(this.image, this.repetition);

		context.fillStyle = pattern;
		context.fillRect(this.box.min.x, this.box.min.y, width, height);
	}
};

Pattern.prototype.serialize = function(recursive)
{
	var data = Object2D.prototype.serialize.call(this, recursive);

	data.box = this.box.toArray();
	data.image = this.image.src;
	data.repetition = this.repetition;

	return data;
};

Pattern.prototype.parse = function(data, root)
{
	Object2D.prototype.parse.call(this, data, root);

	this.box.fromArray(data.box);
	this.image.src = data.image;
	this.repetition = data.repetition;
};

export {Pattern};
</code></pre>
        </article>
    </section>


</div>

<nav>
    <h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="AnimationTimer.html">AnimationTimer</a></li><li><a href="BarGraph.html">BarGraph</a></li><li><a href="BezierCurve.html">BezierCurve</a></li><li><a href="Box.html">Box</a></li><li><a href="Box2.html">Box2</a></li><li><a href="BoxMask.html">BoxMask</a></li><li><a href="Circle.html">Circle</a></li><li><a href="ColorStyle.html">ColorStyle</a></li><li><a href="DOM.html">DOM</a></li><li><a href="EventManager.html">EventManager</a></li><li><a href="FileUtils.html">FileUtils</a></li><li><a href="Gauge.html">Gauge</a></li><li><a href="GradientColorStop.html">GradientColorStop</a></li><li><a href="GradientStyle.html">GradientStyle</a></li><li><a href="Graph.html">Graph</a></li><li><a href="Helpers.html">Helpers</a></li><li><a href="Image.html">Image</a></li><li><a href="Key.html">Key</a></li><li><a href="Line.html">Line</a></li><li><a href="LinearGradientStyle.html">LinearGradientStyle</a></li><li><a href="Mask.html">Mask</a></li><li><a href="Matrix.html">Matrix</a></li><li><a href="MultiLineText.html">MultiLineText</a></li><li><a href="Node.html">Node</a></li><li><a href="NodeConnector.html">NodeConnector</a></li><li><a href="NodeGraph.html">NodeGraph</a></li><li><a href="NodeSocket.html">NodeSocket</a></li><li><a href="Object2D.html">Object2D</a></li><li><a href="Path.html">Path</a></li><li><a href="Pattern.html">Pattern</a></li><li><a href="PatternStyle.html">PatternStyle</a></li><li><a href="PieChart.html">PieChart</a></li><li><a href="Pointer.html">Pointer</a></li><li><a href="QuadraticCurve.html">QuadraticCurve</a></li><li><a href="RadialGradientStyle.html">RadialGradientStyle</a></li><li><a href="Renderer.html">Renderer</a></li><li><a href="RoundedBox.html">RoundedBox</a></li><li><a href="ScatterGraph.html">ScatterGraph</a></li><li><a href="Style.html">Style</a></li><li><a href="Text.html">Text</a></li><li><a href="UUID.html">UUID</a></li><li><a href="Vector2.html">Vector2</a></li><li><a href="Viewport.html">Viewport</a></li><li><a href="ViewportControls.html">ViewportControls</a></li></ul><h3>Global</h3><ul><li><a href="global.html#writeFile">writeFile</a></li></ul>
</nav>

<br class="clear">

<footer>
    Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 3.6.11</a> on Sat Sep 17 2022 14:24:36 GMT+0100 (Hora de verão da Europa Ocidental)
</footer>

<script> prettyPrint(); </script>
<script src="scripts/linenumber.js"> </script>
</body>
</html>