2a6169a952
Render texture finished custom render item added pivot added to display object grunt file updated docs updated
279 lines
11 KiB
HTML
279 lines
11 KiB
HTML
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<title>src/pixi/loaders/BitmapFontLoader.js - Pixi.JS</title>
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<em>API Docs for: 1.0.0</em>
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<h2 class="off-left">APIs</h2>
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<li><a href="#api-classes">Classes</a></li>
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<li><a href="../classes/AssetLoader.html">AssetLoader</a></li>
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<li><a href="../classes/BaseTexture.html">BaseTexture</a></li>
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<li><a href="../classes/BitmapFontLoader.html">BitmapFontLoader</a></li>
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<li><a href="../classes/BitmapText.html">BitmapText</a></li>
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<li><a href="../classes/CanvasRenderer.html">CanvasRenderer</a></li>
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<li><a href="../classes/CustomRenderable.html">CustomRenderable</a></li>
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<li><a href="../classes/DisplayObject.html">DisplayObject</a></li>
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<li><a href="../classes/Point.html">Point</a></li>
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<li><a href="../classes/Rectangle.html">Rectangle</a></li>
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<li><a href="../classes/RenderTexture.html">RenderTexture</a></li>
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<li><a href="../classes/Sprite.html">Sprite</a></li>
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<li><a href="../classes/SpriteSheetLoader.html">SpriteSheetLoader</a></li>
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<div class="content">
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<h1 class="file-heading">File: src/pixi/loaders/BitmapFontLoader.js</h1>
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<div class="file">
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<pre class="code prettyprint linenums">
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/**
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* @author Mat Groves http://matgroves.com/ @Doormat23
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*/
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/**
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* The xml loader is used to load in XML bitmap font data ("xml" or "fnt")
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* To generate the data you can use http://www.angelcode.com/products/bmfont/
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* This loader will also load the image file as the data.
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* When loaded this class will dispatch a "loaded" event
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* @class BitmapFontLoader
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* @extends EventTarget
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* @constructor
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* @param {String} url the url of the sprite sheet JSON file
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* @param {Boolean} crossorigin
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*/
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PIXI.BitmapFontLoader = function(url, crossorigin)
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{
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/*
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* i use texture packer to load the assets..
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* http://www.codeandweb.com/texturepacker
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* make sure to set the format as "JSON"
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*/
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PIXI.EventTarget.call(this);
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this.url = url;
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this.baseUrl = url.replace(/[^\/]*$/, "");
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this.texture = null;
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this.crossorigin = crossorigin;
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};
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// constructor
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PIXI.BitmapFontLoader.constructor = PIXI.BitmapFontLoader;
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/**
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* This will begin loading the JSON file
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*/
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PIXI.BitmapFontLoader.prototype.load = function()
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{
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this.ajaxRequest = new XMLHttpRequest();
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var scope = this;
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this.ajaxRequest.onreadystatechange = function()
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{
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scope.onXMLLoaded();
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};
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this.ajaxRequest.open("GET", this.url, true);
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if (this.ajaxRequest.overrideMimeType) this.ajaxRequest.overrideMimeType("application/xml");
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this.ajaxRequest.send(null)
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};
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/**
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* Invoked when XML file is loaded
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* @private
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*/
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PIXI.BitmapFontLoader.prototype.onXMLLoaded = function()
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{
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if (this.ajaxRequest.readyState == 4)
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{
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if (this.ajaxRequest.status == 200 || window.location.href.indexOf("http") == -1)
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{
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var textureUrl = this.baseUrl + this.ajaxRequest.responseXML.getElementsByTagName("page")[0].attributes.getNamedItem("file").nodeValue;
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var image = new PIXI.ImageLoader(textureUrl, this.crossorigin);
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this.texture = image.texture.baseTexture;
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var data = {};
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var info = this.ajaxRequest.responseXML.getElementsByTagName("info")[0];
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var common = this.ajaxRequest.responseXML.getElementsByTagName("common")[0];
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data.font = info.attributes.getNamedItem("face").nodeValue;
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data.size = parseInt(info.attributes.getNamedItem("size").nodeValue, 10);
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data.lineHeight = parseInt(common.attributes.getNamedItem("lineHeight").nodeValue, 10);
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data.chars = {};
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//parse letters
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var letters = this.ajaxRequest.responseXML.getElementsByTagName("char");
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for (var i = 0; i < letters.length; i++)
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{
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var charCode = parseInt(letters[i].attributes.getNamedItem("id").nodeValue, 10);
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var textureRect = {
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x: parseInt(letters[i].attributes.getNamedItem("x").nodeValue, 10),
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y: parseInt(letters[i].attributes.getNamedItem("y").nodeValue, 10),
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width: parseInt(letters[i].attributes.getNamedItem("width").nodeValue, 10),
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height: parseInt(letters[i].attributes.getNamedItem("height").nodeValue, 10)
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};
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PIXI.TextureCache[charCode] = new PIXI.Texture(this.texture, textureRect);
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data.chars[charCode] = {
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xOffset: parseInt(letters[i].attributes.getNamedItem("xoffset").nodeValue, 10),
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yOffset: parseInt(letters[i].attributes.getNamedItem("yoffset").nodeValue, 10),
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xAdvance: parseInt(letters[i].attributes.getNamedItem("xadvance").nodeValue, 10),
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kerning: {}
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};
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}
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//parse kernings
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var kernings = this.ajaxRequest.responseXML.getElementsByTagName("kerning");
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for (i = 0; i < kernings.length; i++)
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{
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var first = parseInt(kernings[i].attributes.getNamedItem("first").nodeValue, 10);
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var second = parseInt(kernings[i].attributes.getNamedItem("second").nodeValue, 10);
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var amount = parseInt(kernings[i].attributes.getNamedItem("amount").nodeValue, 10);
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data.chars[second].kerning[first] = amount;
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}
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PIXI.BitmapText.fonts[data.font] = data;
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var scope = this;
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image.addEventListener("loaded", function() {
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scope.onLoaded();
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});
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image.load();
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}
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}
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};
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/**
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* Invoked when all files are loaded (xml/fnt and texture)
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* @private
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*/
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PIXI.BitmapFontLoader.prototype.onLoaded = function()
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{
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this.dispatchEvent({type: "loaded", content: this});
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};
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</pre>
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