textmetrics-min.js

一个struts和extjs得源码

Ext.util.TextMetrics=function(){var a;return{measure:function(b,c,d){if(!a){a=Ext.util.TextMetrics.Instance(b,d)}a.bind(b);a.setFixedWidth(d||"auto");return a.getSize(c)},createInstance:function(b,c){return Ext.util.TextMetrics.Instance(b,c)}}}();Ext.util.TextMetrics.Instance=function(b,d){var c=new Ext.Element(document.createElement("div"));document.body.appendChild(c.dom);c.position("absolute");c.setLeftTop(-1000,-1000);c.hide();if(d){c.setWidth(d)}var a={getSize:function(f){c.update(f);var e=c.getSize();c.update("");return e},bind:function(e){c.setStyle(Ext.fly(e).getStyles("font-size","font-style","font-weight","font-family","line-height","text-transform","letter-spacing"))},setFixedWidth:function(e){c.setWidth(e)},getWidth:function(e){c.dom.style.width="auto";return this.getSize(e).width},getHeight:function(e){return this.getSize(e).height}};a.bind(b);return a};Ext.Element.measureText=Ext.util.TextMetrics.measure;