add size formating to util format

[roojs1] / Roo / util / Format.js

diff --git a/Roo/util/Format.js b/Roo/util/Format.js
index 8c90026..03fbabe 100644 (file)
--- a/Roo/util/Format.js
+++ b/Roo/util/Format.js
@@ -245,7 +245,25 @@ Roo.util.Format = function(){
          */
         stripTags : function(v){
             return !v ? v : String(v).replace(this.stripTagsRE, "");
+        },
+        /**
+         * Size in Mb,Gb etc.
+         * @param {Number} value The number to be formated
+         * @param {number} decimals how many decimal places
+         * @return {String} the formated string
+         */
+        size : function(value, decimals)
+        {
+            var sizes = ['b', 'k', 'M', 'G', 'T'];
+            if (v == 0) {
+                return 0;
+            }
+            var i = parseInt(Math.floor(Math.log(v) / Math.log(1024)));
+            return this.number(v / Math.pow(1024, i) ,decimals) + ' ' + sizes[i];
         }
+        
+        
+        
     };
 }();
 Roo.util.Format.defaults = {