Numeric.php

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<?php
#require_once 'Zend/Pdf/Element.php';


class Zend_Pdf_Element_Numeric extends Zend_Pdf_Element
{
    public $value;


    public function __construct($val)
    {
        if ( !is_numeric($val) ) {
            #require_once 'Zend/Pdf/Exception.php';
            throw new Zend_Pdf_Exception('Argument must be numeric');
        }

        $this->value = $val;
    }


    public function getType()
    {
        return Zend_Pdf_Element::TYPE_NUMERIC;
    }


    public function toString($factory = null)
    {
        if (is_integer($this->value)) {
            return (string)$this->value;
        }

        $prec = 0; $v = $this->value;
        while (abs( floor($v) - $v ) > 1e-10) {
            $prec++; $v *= 10;
        }
        return sprintf("%.{$prec}F", $this->value);
    }
}