<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>src/pixi/display/Sprite.js - pixi.js</title>
<link rel="stylesheet" href="http://yui.yahooapis.com/3.9.1/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?3.9.1/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: 1.6.0</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/AbstractFilter.html">AbstractFilter</a></li>
<li><a href="../classes/AjaxRequest.html">AjaxRequest</a></li>
<li><a href="../classes/AlphaMaskFilter.html">AlphaMaskFilter</a></li>
<li><a href="../classes/AssetLoader.html">AssetLoader</a></li>
<li><a href="../classes/AtlasLoader.html">AtlasLoader</a></li>
<li><a href="../classes/autoDetectRenderer.html">autoDetectRenderer</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/BlurFilter.html">BlurFilter</a></li>
<li><a href="../classes/CanvasGraphics.html">CanvasGraphics</a></li>
<li><a href="../classes/CanvasMaskManager.html">CanvasMaskManager</a></li>
<li><a href="../classes/CanvasRenderer.html">CanvasRenderer</a></li>
<li><a href="../classes/CanvasTinter.html">CanvasTinter</a></li>
<li><a href="../classes/Circle.html">Circle</a></li>
<li><a href="../classes/ColorMatrixFilter.html">ColorMatrixFilter</a></li>
<li><a href="../classes/ColorStepFilter.html">ColorStepFilter</a></li>
<li><a href="../classes/ComplexPrimitiveShader.html">ComplexPrimitiveShader</a></li>
<li><a href="../classes/DisplacementFilter.html">DisplacementFilter</a></li>
<li><a href="../classes/DisplayObject.html">DisplayObject</a></li>
<li><a href="../classes/DisplayObjectContainer.html">DisplayObjectContainer</a></li>
<li><a href="../classes/DotScreenFilter.html">DotScreenFilter</a></li>
<li><a href="../classes/Ellipse.html">Ellipse</a></li>
<li><a href="../classes/EventTarget.html">EventTarget</a></li>
<li><a href="../classes/FilterTexture.html">FilterTexture</a></li>
<li><a href="../classes/getRecommendedRenderer.html">getRecommendedRenderer</a></li>
<li><a href="../classes/Graphics.html">Graphics</a></li>
<li><a href="../classes/GrayFilter.html">GrayFilter</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/InvertFilter.html">InvertFilter</a></li>
<li><a href="../classes/JsonLoader.html">JsonLoader</a></li>
<li><a href="../classes/Matrix.html">Matrix</a></li>
<li><a href="../classes/Matrix2.html">Matrix2</a></li>
<li><a href="../classes/MovieClip.html">MovieClip</a></li>
<li><a href="../classes/NormalMapFilter.html">NormalMapFilter</a></li>
<li><a href="../classes/PixelateFilter.html">PixelateFilter</a></li>
<li><a href="../classes/PixiFastShader.html">PixiFastShader</a></li>
<li><a href="../classes/PixiShader.html">PixiShader</a></li>
<li><a href="../classes/Point.html">Point</a></li>
<li><a href="../classes/Polygon.html">Polygon</a></li>
<li><a href="../classes/PolyK.html">PolyK</a></li>
<li><a href="../classes/PrimitiveShader.html">PrimitiveShader</a></li>
<li><a href="../classes/Rectangle.html">Rectangle</a></li>
<li><a href="../classes/Rope.html">Rope</a></li>
<li><a href="../classes/SepiaFilter.html">SepiaFilter</a></li>
<li><a href="../classes/Spine.html">Spine</a></li>
<li><a href="../classes/Sprite.html">Sprite</a></li>
<li><a href="../classes/SpriteBatch.html">SpriteBatch</a></li>
<li><a href="../classes/SpriteSheetLoader.html">SpriteSheetLoader</a></li>
<li><a href="../classes/Stage.html">Stage</a></li>
<li><a href="../classes/Strip.html">Strip</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/TwistFilter.html">TwistFilter</a></li>
<li><a href="../classes/WebGLFilterManager.html">WebGLFilterManager</a></li>
<li><a href="../classes/WebGLGraphics.html">WebGLGraphics</a></li>
<li><a href="../classes/WebGLMaskManager.html">WebGLMaskManager</a></li>
<li><a href="../classes/WebGLRenderer.html">WebGLRenderer</a></li>
<li><a href="../classes/WebGLShaderManager.html">WebGLShaderManager</a></li>
<li><a href="../classes/WebGLSpriteBatch.html">WebGLSpriteBatch</a></li>
<li><a href="../classes/WebGLStencilManager.html">WebGLStencilManager</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/display/Sprite.js</h1>
<div class="file">
<pre class="code prettyprint linenums">
/**
* @author Mat Groves http://matgroves.com/ @Doormat23
*/
/**
* The Sprite object is the base for all textured objects that are rendered to the screen
*
* @class Sprite
* @extends DisplayObjectContainer
* @constructor
* @param texture {Texture} The texture for this sprite
*
* A sprite can be created directly from an image like this :
* var sprite = new PIXI.Sprite.fromImage('assets/image.png');
* yourStage.addChild(sprite);
* then obviously don't forget to add it to the stage you have already created
*/
PIXI.Sprite = function(texture)
{
PIXI.DisplayObjectContainer.call( this );
/**
* The anchor sets the origin point of the texture.
* The default is 0,0 this means the texture's origin is the top left
* Setting than anchor to 0.5,0.5 means the textures origin is centred
* Setting the anchor to 1,1 would mean the textures origin points will be the bottom right corner
*
* @property anchor
* @type Point
*/
this.anchor = new PIXI.Point();
/**
* The texture that the sprite is using
*
* @property texture
* @type Texture
*/
this.texture = texture;
/**
* The width of the sprite (this is initially set by the texture)
*
* @property _width
* @type Number
* @private
*/
this._width = 0;
/**
* The height of the sprite (this is initially set by the texture)
*
* @property _height
* @type Number
* @private
*/
this._height = 0;
/**
* The tint applied to the sprite. This is a hex value
*
* @property tint
* @type Number
* @default 0xFFFFFF
*/
this.tint = 0xFFFFFF;// * Math.random();
/**
* The blend mode to be applied to the sprite
*
* @property blendMode
* @type Number
* @default PIXI.blendModes.NORMAL;
*/
this.blendMode = PIXI.blendModes.NORMAL;
if(texture.baseTexture.hasLoaded)
{
this.onTextureUpdate();
}
else
{
this.onTextureUpdateBind = this.onTextureUpdate.bind(this);
this.texture.addEventListener( 'update', this.onTextureUpdateBind );
}
this.renderable = true;
};
// constructor
PIXI.Sprite.prototype = Object.create( PIXI.DisplayObjectContainer.prototype );
PIXI.Sprite.prototype.constructor = PIXI.Sprite;
/**
* The width of the sprite, setting this will actually modify the scale to achieve the value set
*
* @property width
* @type Number
*/
Object.defineProperty(PIXI.Sprite.prototype, 'width', {
get: function() {
return this.scale.x * this.texture.frame.width;
},
set: function(value) {
this.scale.x = value / this.texture.frame.width;
this._width = value;
}
});
/**
* The height of the sprite, setting this will actually modify the scale to achieve the value set
*
* @property height
* @type Number
*/
Object.defineProperty(PIXI.Sprite.prototype, 'height', {
get: function() {
return this.scale.y * this.texture.frame.height;
},
set: function(value) {
this.scale.y = value / this.texture.frame.height;
this._height = value;
}
});
/**
* Sets the texture of the sprite
*
* @method setTexture
* @param texture {Texture} The PIXI texture that is displayed by the sprite
*/
PIXI.Sprite.prototype.setTexture = function(texture)
{
// stop current texture;
if(this.texture.baseTexture !== texture.baseTexture)
{
this.textureChange = true;
this.texture = texture;
}
else
{
this.texture = texture;
}
this.cachedTint = 0xFFFFFF;
};
/**
* When the texture is updated, this event will fire to update the scale and frame
*
* @method onTextureUpdate
* @param event
* @private
*/
PIXI.Sprite.prototype.onTextureUpdate = function()
{
// so if _width is 0 then width was not set..
if(this._width)this.scale.x = this._width / this.texture.frame.width;
if(this._height)this.scale.y = this._height / this.texture.frame.height;
//this.updateFrame = true;
};
/**
* Returns the framing rectangle of the sprite as a PIXI.Rectangle object
*
* @method getBounds
* @param matrix {Matrix} the transformation matrix of the sprite
* @return {Rectangle} the framing rectangle
*/
PIXI.Sprite.prototype.getBounds = function(matrix)
{
var width = this.texture.frame.width;
var height = this.texture.frame.height;
var w0 = width * (1-this.anchor.x);
var w1 = width * -this.anchor.x;
var h0 = height * (1-this.anchor.y);
var h1 = height * -this.anchor.y;
var worldTransform = matrix || this.worldTransform ;
var a = worldTransform.a;
var b = worldTransform.c;
var c = worldTransform.b;
var d = worldTransform.d;
var tx = worldTransform.tx;
var ty = worldTransform.ty;
var x1 = a * w1 + c * h1 + tx;
var y1 = d * h1 + b * w1 + ty;
var x2 = a * w0 + c * h1 + tx;
var y2 = d * h1 + b * w0 + ty;
var x3 = a * w0 + c * h0 + tx;
var y3 = d * h0 + b * w0 + ty;
var x4 = a * w1 + c * h0 + tx;
var y4 = d * h0 + b * w1 + ty;
var maxX = -Infinity;
var maxY = -Infinity;
var minX = Infinity;
var minY = Infinity;
minX = x1 < minX ? x1 : minX;
minX = x2 < minX ? x2 : minX;
minX = x3 < minX ? x3 : minX;
minX = x4 < minX ? x4 : minX;
minY = y1 < minY ? y1 : minY;
minY = y2 < minY ? y2 : minY;
minY = y3 < minY ? y3 : minY;
minY = y4 < minY ? y4 : minY;
maxX = x1 > maxX ? x1 : maxX;
maxX = x2 > maxX ? x2 : maxX;
maxX = x3 > maxX ? x3 : maxX;
maxX = x4 > maxX ? x4 : maxX;
maxY = y1 > maxY ? y1 : maxY;
maxY = y2 > maxY ? y2 : maxY;
maxY = y3 > maxY ? y3 : maxY;
maxY = y4 > maxY ? y4 : maxY;
var bounds = this._bounds;
bounds.x = minX;
bounds.width = maxX - minX;
bounds.y = minY;
bounds.height = maxY - minY;
// store a reference so that if this function gets called again in the render cycle we do not have to recalculate
this._currentBounds = bounds;
return bounds;
};
/**
* Renders the object using the WebGL renderer
*
* @method _renderWebGL
* @param renderSession {RenderSession}
* @private
*/
PIXI.Sprite.prototype._renderWebGL = function(renderSession)
{
// if the sprite is not visible or the alpha is 0 then no need to render this element
if(!this.visible || this.alpha <= 0)return;
var i,j;
// do a quick check to see if this element has a mask or a filter.
if(this._mask || this._filters)
{
var spriteBatch = renderSession.spriteBatch;
// push filter first as we need to ensure the stencil buffer is correct for any masking
if(this._filters)
{
spriteBatch.flush();
renderSession.filterManager.pushFilter(this._filterBlock);
}
if(this._mask)
{
spriteBatch.stop();
renderSession.maskManager.pushMask(this.mask, renderSession);
spriteBatch.start();
}
// add this sprite to the batch
spriteBatch.render(this);
// now loop through the children and make sure they get rendered
for(i=0,j=this.children.length; i<j; i++)
{
this.children[i]._renderWebGL(renderSession);
}
// time to stop the sprite batch as either a mask element or a filter draw will happen next
spriteBatch.stop();
if(this._mask)renderSession.maskManager.popMask(this._mask, renderSession);
if(this._filters)renderSession.filterManager.popFilter();
spriteBatch.start();
}
else
{
renderSession.spriteBatch.render(this);
// simple render children!
for(i=0,j=this.children.length; i<j; i++)
{
this.children[i]._renderWebGL(renderSession);
}
}
//TODO check culling
};
/**
* Renders the object using the Canvas renderer
*
* @method _renderCanvas
* @param renderSession {RenderSession}
* @private
*/
PIXI.Sprite.prototype._renderCanvas = function(renderSession)
{
// If the sprite is not visible or the alpha is 0 then no need to render this element
if (this.visible === false || this.alpha === 0) return;
if (this.blendMode !== renderSession.currentBlendMode)
{
renderSession.currentBlendMode = this.blendMode;
renderSession.context.globalCompositeOperation = PIXI.blendModesCanvas[renderSession.currentBlendMode];
}
if (this._mask)
{
renderSession.maskManager.pushMask(this._mask, renderSession.context);
}
// Ignore null sources
if (this.texture.valid)
{
renderSession.context.globalAlpha = this.worldAlpha;
// Allow for pixel rounding
if (renderSession.roundPixels)
{
renderSession.context.setTransform(
this.worldTransform.a,
this.worldTransform.c,
this.worldTransform.b,
this.worldTransform.d,
this.worldTransform.tx | 0,
this.worldTransform.ty | 0);
}
else
{
renderSession.context.setTransform(
this.worldTransform.a,
this.worldTransform.c,
this.worldTransform.b,
this.worldTransform.d,
this.worldTransform.tx,
this.worldTransform.ty);
}
// If smoothingEnabled is supported and we need to change the smoothing property for this texture
if (renderSession.smoothProperty && renderSession.scaleMode !== this.texture.baseTexture.scaleMode)
{
renderSession.scaleMode = this.texture.baseTexture.scaleMode;
renderSession.context[renderSession.smoothProperty] = (renderSession.scaleMode === PIXI.scaleModes.LINEAR);
}
// If the texture is trimmed we offset by the trim x/y, otherwise we use the frame dimensions
var dx = (this.texture.trim) ? this.texture.trim.x - this.anchor.x * this.texture.trim.width : this.anchor.x * -this.texture.frame.width;
var dy = (this.texture.trim) ? this.texture.trim.y - this.anchor.y * this.texture.trim.height : this.anchor.y * -this.texture.frame.height;
if (this.tint !== 0xFFFFFF)
{
if (this.cachedTint !== this.tint)
{
this.cachedTint = this.tint;
// TODO clean up caching - how to clean up the caches?
this.tintedTexture = PIXI.CanvasTinter.getTintedTexture(this, this.tint);
}
renderSession.context.drawImage(
this.tintedTexture,
0,
0,
this.texture.crop.width,
this.texture.crop.height,
dx,
dy,
this.texture.crop.width,
this.texture.crop.height);
}
else
{
renderSession.context.drawImage(
this.texture.baseTexture.source,
this.texture.crop.x,
this.texture.crop.y,
this.texture.crop.width,
this.texture.crop.height,
dx,
dy,
this.texture.crop.width,
this.texture.crop.height);
}
}
// OVERWRITE
for (var i = 0, j = this.children.length; i < j; i++)
{
this.children[i]._renderCanvas(renderSession);
}
if (this._mask)
{
renderSession.maskManager.popMask(renderSession.context);
}
};
// some helper functions..
/**
*
* Helper function that creates a sprite that will contain a texture from the TextureCache based on the frameId
* The frame ids are created when a Texture packer file has been loaded
*
* @method fromFrame
* @static
* @param frameId {String} The frame Id of the texture in the cache
* @return {Sprite} A new Sprite using a texture from the texture cache matching the frameId
*/
PIXI.Sprite.fromFrame = function(frameId)
{
var texture = PIXI.TextureCache[frameId];
if(!texture) throw new Error('The frameId "' + frameId + '" does not exist in the texture cache' + this);
return new PIXI.Sprite(texture);
};
/**
*
* Helper function that creates a sprite that will contain a texture based on an image url
* If the image is not in the texture cache it will be loaded
*
* @method fromImage
* @static
* @param imageId {String} The image url of the texture
* @return {Sprite} A new Sprite using a texture from the texture cache matching the image id
*/
PIXI.Sprite.fromImage = function(imageId, crossorigin, scaleMode)
{
var texture = PIXI.Texture.fromImage(imageId, crossorigin, scaleMode);
return new PIXI.Sprite(texture);
};
</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>
