<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>src/pixi/renderers/canvas/CanvasGraphics.js - Pixi.JS</title>
<link rel="stylesheet" href="http://yui.yahooapis.com/3.8.0/build/cssgrids/cssgrids-min.css">
<link rel="stylesheet" href="../assets/vendor/prettify/prettify-min.css">
<link rel="stylesheet" href="../assets/css/main.css" id="site_styles">
<link rel="shortcut icon" type="image/png" href="../assets/favicon.png">
<script src="http://yui.yahooapis.com/combo?3.8.0/build/yui/yui-min.js"></script>
</head>
<body class="yui3-skin-sam">
<div id="doc">
<div id="hd" class="yui3-g header">
<div class="yui3-u-3-4">
<h1><img src="http://www.goodboydigital.com/pixijs/logo_small.png" title="Pixi.JS"></h1>
</div>
<div class="yui3-u-1-4 version">
<em>API Docs for: 1.3.0</em>
</div>
</div>
<div id="bd" class="yui3-g">
<div class="yui3-u-1-4">
<div id="docs-sidebar" class="sidebar apidocs">
<div id="api-list">
<h2 class="off-left">APIs</h2>
<div id="api-tabview" class="tabview">
<ul class="tabs">
<li><a href="#api-classes">Classes</a></li>
<li><a href="#api-modules">Modules</a></li>
</ul>
<div id="api-tabview-filter">
<input type="search" id="api-filter" placeholder="Type to filter APIs">
</div>
<div id="api-tabview-panel">
<ul id="api-classes" class="apis classes">
<li><a href="../classes/AssetLoader.html">AssetLoader</a></li>
<li><a href="../classes/BaseTexture.html">BaseTexture</a></li>
<li><a href="../classes/BitmapFontLoader.html">BitmapFontLoader</a></li>
<li><a href="../classes/BitmapText.html">BitmapText</a></li>
<li><a href="../classes/CanvasGraphics.html">CanvasGraphics</a></li>
<li><a href="../classes/CanvasRenderer.html">CanvasRenderer</a></li>
<li><a href="../classes/CustomRenderable.html">CustomRenderable</a></li>
<li><a href="../classes/DisplayObject.html">DisplayObject</a></li>
<li><a href="../classes/DisplayObjectContainer.html">DisplayObjectContainer</a></li>
<li><a href="../classes/Graphics.html">Graphics</a></li>
<li><a href="../classes/ImageLoader.html">ImageLoader</a></li>
<li><a href="../classes/InteractionData.html">InteractionData</a></li>
<li><a href="../classes/InteractionManager.html">InteractionManager</a></li>
<li><a href="../classes/JsonLoader.html">JsonLoader</a></li>
<li><a href="../classes/MovieClip.html">MovieClip</a></li>
<li><a href="../classes/Point.html">Point</a></li>
<li><a href="../classes/Polygon.html">Polygon</a></li>
<li><a href="../classes/Rectangle.html">Rectangle</a></li>
<li><a href="../classes/RenderTexture.html">RenderTexture</a></li>
<li><a href="../classes/Spine.html">Spine</a></li>
<li><a href="../classes/Sprite.html">Sprite</a></li>
<li><a href="../classes/SpriteSheetLoader.html">SpriteSheetLoader</a></li>
<li><a href="../classes/Stage.html">Stage</a></li>
<li><a href="../classes/Text.html">Text</a></li>
<li><a href="../classes/Texture.html">Texture</a></li>
<li><a href="../classes/TilingSprite.html">TilingSprite</a></li>
<li><a href="../classes/WebGLBatch.html">WebGLBatch</a></li>
<li><a href="../classes/WebGLRenderer.html">WebGLRenderer</a></li>
</ul>
<ul id="api-modules" class="apis modules">
<li><a href="../modules/PIXI.html">PIXI</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div class="yui3-u-3-4">
<div id="api-options">
Show:
<label for="api-show-inherited">
<input type="checkbox" id="api-show-inherited" checked>
Inherited
</label>
<label for="api-show-protected">
<input type="checkbox" id="api-show-protected">
Protected
</label>
<label for="api-show-private">
<input type="checkbox" id="api-show-private">
Private
</label>
<label for="api-show-deprecated">
<input type="checkbox" id="api-show-deprecated">
Deprecated
</label>
</div>
<div class="apidocs">
<div id="docs-main">
<div class="content">
<h1 class="file-heading">File: src/pixi/renderers/canvas/CanvasGraphics.js</h1>
<div class="file">
<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* A set of functions used by the canvas renderer to draw the primitive graphics data
* @class CanvasGraphics
*/
PIXI.CanvasGraphics = function()
{
}
/*
* @private
* @static
* @method renderGraphics
* @param graphics {Graphics}
* @param context {Context2D}
*/
PIXI.CanvasGraphics.renderGraphics = function(graphics, context)
{
var worldAlpha = graphics.worldAlpha;
for (var i=0; i < graphics.graphicsData.length; i++)
{
var data = graphics.graphicsData[i];
var points = data.points;
context.strokeStyle = color = '#' + ('00000' + ( data.lineColor | 0).toString(16)).substr(-6);
context.lineWidth = data.lineWidth;
if(data.type == PIXI.Graphics.POLY)
{
//if(data.lineWidth <= 0)continue;
context.beginPath();
context.moveTo(points[0], points[1]);
for (var j=1; j < points.length/2; j++)
{
context.lineTo(points[j * 2], points[j * 2 + 1]);
}
// if the first and last point are the same close the path - much neater :)
if(points[0] == points[points.length-2] && points[1] == points[points.length-1])
{
context.closePath();
}
if(data.fill)
{
context.globalAlpha = data.fillAlpha * worldAlpha;
context.fillStyle = color = '#' + ('00000' + ( data.fillColor | 0).toString(16)).substr(-6);
context.fill();
}
if(data.lineWidth)
{
context.globalAlpha = data.lineAlpha * worldAlpha;
context.stroke();
}
}
else if(data.type == PIXI.Graphics.RECT)
{
// TODO - need to be Undefined!
if(data.fillColor)
{
context.globalAlpha = data.fillAlpha * worldAlpha;
context.fillStyle = color = '#' + ('00000' + ( data.fillColor | 0).toString(16)).substr(-6);
context.fillRect(points[0], points[1], points[2], points[3]);
}
if(data.lineWidth)
{
context.globalAlpha = data.lineAlpha * worldAlpha;
context.strokeRect(points[0], points[1], points[2], points[3]);
}
}
else if(data.type == PIXI.Graphics.CIRC)
{
// TODO - need to be Undefined!
context.beginPath();
context.arc(points[0], points[1], points[2],0,2*Math.PI);
context.closePath();
if(data.fill)
{
context.globalAlpha = data.fillAlpha * worldAlpha;
context.fillStyle = color = '#' + ('00000' + ( data.fillColor | 0).toString(16)).substr(-6);
context.fill();
}
if(data.lineWidth)
{
context.globalAlpha = data.lineAlpha * worldAlpha;
context.stroke();
}
}
else if(data.type == PIXI.Graphics.ELIP)
{
// elipse code taken from: http://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas
var elipseData = data.points;
var w = elipseData[2] * 2;
var h = elipseData[3] * 2;
var x = elipseData[0] - w/2;
var y = elipseData[1] - h/2;
context.beginPath();
var kappa = .5522848,
ox = (w / 2) * kappa, // control point offset horizontal
oy = (h / 2) * kappa, // control point offset vertical
xe = x + w, // x-end
ye = y + h, // y-end
xm = x + w / 2, // x-middle
ym = y + h / 2; // y-middle
context.moveTo(x, ym);
context.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
context.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
context.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
context.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
context.closePath();
if(data.fill)
{
context.globalAlpha = data.fillAlpha * worldAlpha;
context.fillStyle = color = '#' + ('00000' + ( data.fillColor | 0).toString(16)).substr(-6);
context.fill();
}
if(data.lineWidth)
{
context.globalAlpha = data.lineAlpha * worldAlpha;
context.stroke();
}
}
};
}
</pre>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<script src="../assets/vendor/prettify/prettify-min.js"></script>
<script>prettyPrint();</script>
<script src="../assets/js/yui-prettify.js"></script>
<script src="../assets/../api.js"></script>
<script src="../assets/js/api-filter.js"></script>
<script src="../assets/js/api-list.js"></script>
<script src="../assets/js/api-search.js"></script>
<script src="../assets/js/apidocs.js"></script>
</body>
</html>
