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fabric.util.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Namespace: util</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
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<body>
<ul id="header">
<li><a href="http://fabricjs.com/">Home</a></li>
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<div class="lowerNav" >
<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="fabric.ActiveSelection.html">ActiveSelection</a></li><li><a href="fabric.BaseBrush.html">BaseBrush</a></li><li><a href="fabric.Canvas.html">Canvas</a></li><li><a href="fabric.Circle.html">Circle</a></li><li><a href="fabric.CircleBrush.html">CircleBrush</a></li><li><a href="fabric.Color.html">Color</a></li><li><a href="fabric.Ellipse.html">Ellipse</a></li><li><a href="fabric.Gradient.html">Gradient</a></li><li><a href="fabric.Group.html">Group</a></li><li><a href="fabric.Image.html">Image</a></li><li><a href="fabric.Image.filters.BaseFilter.html">BaseFilter</a></li><li><a href="fabric.Image.filters.Blur.html">Blur</a></li><li><a href="fabric.Image.filters.Brightness.html">Brightness</a></li><li><a href="fabric.Image.filters.ColorMatrix.html">ColorMatrix</a></li><li><a href="fabric.Image.filters.Contrast.html">Contrast</a></li><li><a href="fabric.Image.filters.Convolute.html">Convolute</a></li><li><a href="fabric.Image.filters.fabric.Image.filter.BlendColor.html">BlendColor</a></li><li><a href="fabric.Image.filters.fabric.Image.filter.BlendImage.html">BlendImage</a></li><li><a href="fabric.Image.filters.Gamma.html">Gamma</a></li><li><a href="fabric.Image.filters.Grayscale.html">Grayscale</a></li><li><a href="fabric.Image.filters.HueRotation.html">HueRotation</a></li><li><a href="fabric.Image.filters.Invert.html">Invert</a></li><li><a href="fabric.Image.filters.Noise.html">Noise</a></li><li><a href="fabric.Image.filters.Pixelate.html">Pixelate</a></li><li><a href="fabric.Image.filters.RemoveColor.html">RemoveColor</a></li><li><a href="fabric.Image.filters.Resize.html">Resize</a></li><li><a href="fabric.Image.filters.Saturation.html">Saturation</a></li><li><a href="fabric.Image.filters.Vibrance.html">Vibrance</a></li><li><a href="fabric.Intersection.html">Intersection</a></li><li><a href="fabric.IText.html">IText</a></li><li><a href="fabric.Line.html">Line</a></li><li><a href="fabric.Object.html">Object</a></li><li><a href="fabric.Path.html">Path</a></li><li><a href="fabric.Pattern.html">Pattern</a></li><li><a href="fabric.PatternBrush.html">PatternBrush</a></li><li><a href="fabric.PencilBrush.html">PencilBrush</a></li><li><a href="fabric.Point.html">Point</a></li><li><a href="fabric.Polygon.html">Polygon</a></li><li><a href="fabric.Polyline.html">Polyline</a></li><li><a href="fabric.Rect.html">Rect</a></li><li><a href="fabric.Shadow.html">Shadow</a></li><li><a href="fabric.SprayBrush.html">SprayBrush</a></li><li><a href="fabric.StaticCanvas.html">StaticCanvas</a></li><li><a href="fabric.Text.html">Text</a></li><li><a href="fabric.Textbox.html">Textbox</a></li><li><a href="fabric.Triangle.html">Triangle</a></li></ul><h3>Namespaces</h3><ul><li><a href="fabric.html">fabric</a></li><li><a href="fabric.Collection.html">Collection</a></li><li><a href="fabric.CommonMethods.html">CommonMethods</a></li><li><a href="fabric.Image.filters.html">filters</a></li><li><a href="fabric.Observable.html">Observable</a></li><li><a href="fabric.util.html">util</a></li><li><a href="fabric.util.array.html">array</a></li><li><a href="fabric.util.ease.html">ease</a></li><li><a href="fabric.util.object.html">object</a></li><li><a href="fabric.util.string.html">string</a></li></ul><h3>Global</h3><ul><li><a href="global.html#__cachedLines">__cachedLines</a></li><li><a href="global.html#_splitTextIntoLines">_splitTextIntoLines</a></li><li><a href="global.html#_wrapLine">_wrapLine</a></li><li><a href="global.html#_wrapText">_wrapText</a></li><li><a href="global.html#applyFilters">applyFilters</a></li><li><a href="global.html#cancelAll">cancelAll</a></li><li><a href="global.html#cancelByCanvas">cancelByCanvas</a></li><li><a href="global.html#cancelByTarget">cancelByTarget</a></li><li><a href="global.html#copyGLTo2DDrawImage">copyGLTo2DDrawImage</a></li><li><a href="global.html#copyGLTo2DPutImageData">copyGLTo2DPutImageData</a></li><li><a href="global.html#dynamicMinWidth">dynamicMinWidth</a></li><li><a href="global.html#findAnimation">findAnimation</a></li><li><a href="global.html#findAnimationIndex">findAnimationIndex</a></li><li><a href="global.html#findAnimationsByTarget">findAnimationsByTarget</a></li><li><a href="global.html#isEmptyStyles">isEmptyStyles</a></li><li><a href="global.html#isEndOfWrapping">isEndOfWrapping</a></li><li><a href="global.html#lockScalingFlip">lockScalingFlip</a></li><li><a href="global.html#minWidth">minWidth</a></li><li><a href="global.html#missingNewlineOffset">missingNewlineOffset</a></li><li><a href="global.html#noScaleCache">noScaleCache</a></li><li><a href="global.html#splitByGrapheme">splitByGrapheme</a></li><li><a href="global.html#styleHas">styleHas</a></li><li><a href="global.html#toObject">toObject</a></li><li><a href="global.html#type">type</a></li></ul>
</div>
</nav>
<div id="main">
<h1 class="page-title">Namespace: util</h1>
<section>
<header>
<h2>
<span class="ancestors"><a href="fabric.html">fabric</a>.</span>util</h2>
</header>
<article>
<div class="container-overview">
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line632">line 632</a>
</li></ul></dd>
</dl>
</div>
<h3 class="subsection-title">Namespaces</h3>
<dl>
<dt><a href="fabric.util.array.html">array</a></dt>
<dd></dd>
<dt><a href="fabric.util.ease.html">ease</a></dt>
<dd></dd>
<dt><a href="fabric.util.object.html">object</a></dt>
<dd></dd>
<dt><a href="fabric.util.string.html">string</a></dt>
<dd></dd>
</dl>
<h3 class="subsection-title">Members</h3>
<h4 class="name" id=".getElementStyle"><a href="#.getElementStyle" ><span class="type-signature">(static) </span>getElementStyle<span class="type-signature"></span></a></h4>
<div class="description">
Returns style attribute value of a given element
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line3385">line 3385</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".setImageSmoothing"><a href="#.setImageSmoothing" ><span class="type-signature">(static) </span>setImageSmoothing<span class="type-signature"></span></a></h4>
<div class="description">
setImageSmoothing sets the context imageSmoothingEnabled property.
Used by canvas and by ImageObject.
</div>
<dl class="details">
<dt class="tag-since">Since:</dt>
<dd class="tag-since"><ul class="dummy"><li>4.0.0</li></ul></dd>
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line3490">line 3490</a>
</li></ul></dd>
</dl>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id=".addClass"><a href="#.addClass" ><span class="type-signature">(static) </span>addClass<span class="signature">(element, className)</span><span class="type-signature"></span></a></h4>
<div class="description">
Adds class to an element
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>element</code></td>
<td class="type">
<span class="param-type">HTMLElement</span>
</td>
<td class="description last">Element to add class to</td>
</tr>
<tr>
<td class="name"><code>className</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">Class to add to an element</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line3271">line 3271</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".addListener"><a href="#.addListener" ><span class="type-signature">(static) </span>addListener<span class="signature">(element, eventName, handler)</span><span class="type-signature"></span></a></h4>
<div class="description">
Adds an event listener to an element
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>element</code></td>
<td class="type">
<span class="param-type">HTMLElement</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>eventName</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last"></td>
</tr>
<tr>
<td class="name"><code>handler</code></td>
<td class="type">
<span class="param-type">function</span>
</td>
<td class="description last"></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line3090">line 3090</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".addTransformToObject"><a href="#.addTransformToObject" ><span class="type-signature">(static) </span>addTransformToObject<span class="signature">(object, transform)</span><span class="type-signature"></span></a></h4>
<div class="description">
given an object and a transform, apply the transform to the object.
this is equivalent to change the space where the object is drawn.
Adding to an object a transform that scale by 2 is like scaling it by 2.
This is used when removing an object from an active selection for example.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>object</code></td>
<td class="type">
<span class="param-type"><a href="fabric.Object.html">fabric.Object</a></span>
</td>
<td class="description last">the object you want to transform</td>
</tr>
<tr>
<td class="name"><code>transform</code></td>
<td class="type">
<span class="param-type">Array</span>
</td>
<td class="description last">the destination transform</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line1730">line 1730</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".animate"><a href="#.animate" ><span class="type-signature">(static) </span>animate<span class="signature">(options<span class="signature-attributes">opt</span>)</span><span class="type-signature"> → {CancelFunction}</span></a></h4>
<div class="description">
Changes value from one to another within certain period of time, invoking callbacks as value is being changed.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>options</code></td>
<td class="type">
<span class="param-type">AnimationOptions</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">Animation options</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="fabric.js.html">fabric.js</a>, <a href="fabric.js.html#line3699">line 3699</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
cancel function
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">CancelFunction</span>
</dd>
</dl>
<h4 class="name" id=".animateColor"><a href="#.animateColor" ><span class="type-signature">(static) </span>animateColor<span class="signature">(fromColor, toColor, duration<span class="signature-attributes">opt</span>, options<span class="signature-attributes">opt</span>)</span><span class="type-signature"> → {function}</span></a></h4>
<div class="description">
Changes the color from one to another within certain period of time, invoking callbacks as value is being changed.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>fromColor</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="attributes">
</td>
<td class="description last">The starting color in hex or rgb(a) format.</td>
</tr>
<tr>
<td class="name"><code>toColor</code></td>
<td class="type">
<span class="param-type">String</span>