Boolean.php

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


class Zend_Pdf_Element_Boolean extends Zend_Pdf_Element
{
    public $value;


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

        $this->value   = $val;
    }


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


    public function toString($factory = null)
    {
        return $this->value ? 'true' : 'false';
    }
}