292 lines
9.8 KiB
HTML
292 lines
9.8 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>src/pixi/Text.js - Pixi.JS</title>
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<link rel="stylesheet" href="http://yui.yahooapis.com/3.8.0/build/cssgrids/cssgrids-min.css">
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<div id="doc">
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<div id="hd" class="yui3-g header">
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<h1><img src="http://www.goodboydigital.com/pixijs/logo_small.png" title="Pixi.JS"></h1>
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</div>
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<div class="yui3-u-1-4 version">
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<em>API Docs for: 1.0.0</em>
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<li><a href="#api-classes">Classes</a></li>
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<ul id="api-classes" class="apis classes">
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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/CanvasRenderer.html">CanvasRenderer</a></li>
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<li><a href="../classes/DisplayObject.html">DisplayObject</a></li>
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<li><a href="../classes/DisplayObjectContainer.html">DisplayObjectContainer</a></li>
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<li><a href="../classes/InteractionData.html">InteractionData</a></li>
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<li><a href="../classes/InteractionManager.html">InteractionManager</a></li>
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<li><a href="../classes/MovieClip.html">MovieClip</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/Sprite.html">Sprite</a></li>
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<li><a href="../classes/SpriteSheetLoader.html">SpriteSheetLoader</a></li>
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<li><a href="../classes/Stage.html">Stage</a></li>
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<li><a href="../classes/Text.html">Text</a></li>
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<li><a href="../classes/Texture.html">Texture</a></li>
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<li><a href="../classes/TilingSprite.html">TilingSprite</a></li>
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<li><a href="../classes/WebGLBatch.html">WebGLBatch</a></li>
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<li><a href="../classes/WebGLRenderer.html">WebGLRenderer</a></li>
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</ul>
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<ul id="api-modules" class="apis modules">
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<li><a href="../modules/PIXI.html">PIXI</a></li>
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Deprecated
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<div class="apidocs">
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<div id="docs-main">
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<div class="content">
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<h1 class="file-heading">File: src/pixi/Text.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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* A Text Object will create a line of text
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* @class Text
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* @extends Sprite
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* @constructor
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* @param text {String} The copy that you would like the text to display
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* @param fontStyle {String} the style and size of the font eg "bold 20px Arial"
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* @param fillStyle {Object} a canvas fillstyle that will be used on the text eg "red", "#00FF00" can also be null
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* @param strokeStyle {String} a canvas fillstyle that will be used on the text stroke eg "blue", "#FCFF00" can also be null
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* @param strokeThickness {Number} A number that represents the thicknes of the stroke. default is 0 (no stroke)
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*/
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PIXI.Text = function(text, fontStyle, fillStyle, strokeStyle, strokeThickness)
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{
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this.canvas = document.createElement("canvas");
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this.context = this.canvas.getContext("2d");
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//document.body.appendChild(this.canvas);
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this.setText(text);
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this.setStyle(fontStyle, fillStyle, strokeStyle, strokeThickness);
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this.updateText();
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PIXI.Sprite.call( this, PIXI.Texture.fromCanvas(this.canvas));
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// need to store a canvas that can
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}
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// constructor
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PIXI.Text.constructor = PIXI.Text;
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PIXI.Text.prototype = Object.create( PIXI.Sprite.prototype );
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/**
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* Set the copy for the text object
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* @methos setText
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* @param text {String} The copy that you would like the text to display
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*/
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PIXI.Text.prototype.setText = function(text)
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{
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this.text = text || " ";
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this.dirty = true;
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}
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/**
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* Set the style of the text
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* @method setStyle
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* @constructor
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* @param fontStyle {String} the style and size of the font eg "bold 20px Arial"
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* @param fillStyle {Object} a canvas fillstyle that will be used on the text eg "red", "#00FF00" can also be null
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* @param strokeStyle {String} a canvas fillstyle that will be used on the text stroke eg "blue", "#FCFF00" can also be null
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* @param strokeThickness {Number} A number that represents the thicknes of the stroke. default is 0 (no stroke)
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*/
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PIXI.Text.prototype.setStyle = function(fontStyle, fillStyle, strokeStyle, strokeThickness)
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{
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this.fontStyle = fontStyle || "bold 20pt Arial";
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this.fillStyle = fillStyle;
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this.strokeStyle = strokeStyle;
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this.strokeThickness = strokeThickness || 0;
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this.dirty = true;
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}
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/**
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* @private
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*/
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PIXI.Text.prototype.updateText = function()
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{
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// console.log(this.text);
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this.context.font = this.fontStyle;
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this.canvas.width = this.context.measureText(this.text).width + this.strokeThickness//textDimensions.width;
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this.canvas.height = this.determineFontHeight("font: " + this.fontStyle + ";")+ this.strokeThickness;// textDimensions.height;
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this.context.fillStyle = this.fillStyle;
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this.context.font = this.fontStyle;
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this.context.strokeStyle = this.strokeStyle;
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this.context.lineWidth = this.strokeThickness;
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this.context.textBaseline="top";
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if(this.strokeStyle && this.strokeThickness)this.context.strokeText(this.text, this.strokeThickness/2, this.strokeThickness/2);
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if(this.fillStyle)this.context.fillText(this.text, this.strokeThickness/2, this.strokeThickness/2);
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// console.log("//")
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}
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PIXI.Text.prototype.updateTransform = function()
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{
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if(this.dirty)
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{
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this.updateText();
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// update the texture..
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this.texture.baseTexture.width = this.canvas.width;
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this.texture.baseTexture.height = this.canvas.height;
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this.texture.frame.width = this.canvas.width;
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this.texture.frame.height = this.canvas.height;
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PIXI.texturesToUpdate.push(this.texture.baseTexture);
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this.dirty = false;
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}
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PIXI.Sprite.prototype.updateTransform.call( this );
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}
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/*
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* http://stackoverflow.com/users/34441/ellisbben
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* great solution to the problem!
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*/
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PIXI.Text.prototype.determineFontHeight = function(fontStyle)
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{
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// build a little refference dictionary so if the font style has been used return a
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// cached version...
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var result = PIXI.Text.heightCache[fontStyle]
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if(!result)
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{
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var body = document.getElementsByTagName("body")[0];
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var dummy = document.createElement("div");
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var dummyText = document.createTextNode("M");
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dummy.appendChild(dummyText);
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dummy.setAttribute("style", fontStyle);
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body.appendChild(dummy);
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result = dummy.offsetHeight;
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PIXI.Text.heightCache[fontStyle] = result
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body.removeChild(dummy);
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}
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return result;
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};
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PIXI.Text.prototype.destroy = function(destroyTexture)
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{
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if(destroyTexture)
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{
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this.texture.destroy();
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}
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}
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PIXI.Text.heightCache = {};
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</pre>
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</div>
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</div>
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</div>
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</div>
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