Subversion Repositories SmartDukaan

/*

* @Copyright (c) 2010 Ricardo Andrietta Mendes - eng.rmendes@gmail.com

* 

* Permission is hereby granted, free of charge, to any person

* obtaining a copy of this software and associated documentation

* files (the "Software"), to deal in the Software without

* restriction, including without limitation the rights to use,

* copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the

* Software is furnished to do so, subject to the following

* conditions:

* The above copyright notice and this permission notice shall be

* included in all copies or substantial portions of the Software.

*

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

* OTHER DEALINGS IN THE SOFTWARE.

* 

* How to use it:

* var formated_value = $().number_format(final_value);

* 

* Advanced:

* var formated_value = $().number_format(final_value, 

* 													{

* 													numberOfDecimals:3,

* 													decimalSeparator: '.',

* 													thousandSeparator: ',',

* 													symbol: 'R$'

* 													});

*/

//indica que está sendo criado um plugin

jQuery.fn.extend({ //indica que está sendo criado um plugin

	number_format: function(numero, params) //indica o nome do plugin que será criado com os parametros a serem informados

		{ 

		//parametros default

		var sDefaults = 

			{			

			numberOfDecimals: 2,

			decimalSeparator: ',',

			thousandSeparator: '.',

			symbol: ''

			}

		//função do jquery que substitui os parametros que não foram informados pelos defaults

		var options = jQuery.extend(sDefaults, params);

		//CORPO DO PLUGIN

		var number = numero; 

		var decimals = options.numberOfDecimals;

		var dec_point = options.decimalSeparator;

		var thousands_sep = options.thousandSeparator;

		var currencySymbol = options.symbol;

		var exponent = "";

		var numberstr = number.toString ();

		var eindex = numberstr.indexOf ("e");

		if (eindex > -1)

		{

		exponent = numberstr.substring (eindex);

		number = parseFloat (numberstr.substring (0, eindex));

		}

		if (decimals != null)

		{

		var temp = Math.pow (10, decimals);

		number = Math.round (number * temp) / temp;

		}

		var sign = number < 0 ? "-" : "";

		var integer = (number > 0 ? 

		  Math.floor (number) : Math.abs (Math.ceil (number))).toString ();

		var fractional = number.toString ().substring (integer.length + sign.length);

		dec_point = dec_point != null ? dec_point : ".";

		fractional = decimals != null && decimals > 0 || fractional.length > 1 ? 

				   (dec_point + fractional.substring (1)) : "";

		if (decimals != null && decimals > 0)

		{

		for (i = fractional.length - 1, z = decimals; i < z; ++i)

		  fractional += "0";

		}

		thousands_sep = (thousands_sep != dec_point || fractional.length == 0) ? 

					  thousands_sep : null;

		if (thousands_sep != null && thousands_sep != "")

		{

		for (i = integer.length - 3; i > 0; i -= 3)

		  integer = integer.substring (0 , i) + thousands_sep + integer.substring (i);

		}

		if (options.symbol == '')

		{

		return sign + integer + fractional + exponent;

		}

		else

		{

		return currencySymbol + ' ' + sign + integer + fractional + exponent;

		}

		//FIM DO CORPO DO PLUGIN	

	}

});