1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Pdf

    17  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    18  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    19  * @version    $Id: Numeric.php 20096 2010-01-06 02:05:09Z bkarwin $

    20  */

    21 

    22 

    23 /** Zend_Pdf_Element */

    24 require_once 'Zend/Pdf/Element.php';

    25 

    26 

    27 /**

    28  * PDF file 'numeric' element implementation

    29  *

    30  * @category   Zend

    31  * @package    Zend_Pdf

    32  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

    33  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    34  */

    35 class Zend_Pdf_Element_Numeric extends Zend_Pdf_Element

    36 {

    37     /**

    38      * Object value

    39      *

    40      * @var numeric

    41      */

    42     public $value;

    43 

    44 

    45     /**

    46      * Object constructor

    47      *

    48      * @param numeric $val

    49      * @throws Zend_Pdf_Exception

    50      */

    51     public function __construct($val)

    52     {

    53         if ( !is_numeric($val) ) {

    54             require_once 'Zend/Pdf/Exception.php';

    55             throw new Zend_Pdf_Exception('Argument must be numeric');

    56         }

    57 

    58         $this->value = $val;

    59     }

    60 

    61 

    62     /**

    63      * Return type of the element.

    64      *

    65      * @return integer

    66      */

    67     public function getType()

    68     {

    69         return Zend_Pdf_Element::TYPE_NUMERIC;

    70     }

    71 

    72 

    73     /**

    74      * Return object as string

    75      *

    76      * @param Zend_Pdf_Factory $factory

    77      * @return string

    78      */

    79     public function toString($factory = null)

    80     {

    81         if (is_integer($this->value)) {

    82             return (string)$this->value;

    83         }

    84 

    85         /**

    86          * PDF doesn't support exponental format.

    87          * Fixed point format must be used instead

    88          */

    89         $prec = 0; $v = $this->value;

    90         while (abs( floor($v) - $v ) > 1e-10) {

    91             $prec++; $v *= 10;

    92         }

    93         return sprintf("%.{$prec}F", $this->value);

    94     }

    95 }