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/framework/vendor/zend/Zend/Pdf/Element/Numeric.php

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PHP | 95 lines | 29 code | 12 blank | 54 comment | 3 complexity | 1d41c4f4027d2e6601dfe1fb550164e3 MD5 | raw file
 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 */
24require_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 */
35class 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}