Zoom.php

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<?php
#require_once 'Zend/Pdf/Element/Array.php';
#require_once 'Zend/Pdf/Element/Name.php';
#require_once 'Zend/Pdf/Element/Null.php';
#require_once 'Zend/Pdf/Element/Numeric.php';


#require_once 'Zend/Pdf/Destination/Explicit.php';

class Zend_Pdf_Destination_Zoom extends Zend_Pdf_Destination_Explicit
{
    public static function create($page, $left = null, $top = null, $zoom = null)
    {
        $destinationArray = new Zend_Pdf_Element_Array();

        if ($page instanceof Zend_Pdf_Page) {
            $destinationArray->items[] = $page->getPageDictionary();
        } else if (is_integer($page)) {
            $destinationArray->items[] = new Zend_Pdf_Element_Numeric($page);
        } else {
            #require_once 'Zend/Pdf/Exception.php';
            throw new Zend_Pdf_Exception('Page entry must be a Zend_Pdf_Page object or a page number.');
        }

        $destinationArray->items[] = new Zend_Pdf_Element_Name('XYZ');

        if ($left === null) {
            $destinationArray->items[] = new Zend_Pdf_Element_Null();
        } else {
            $destinationArray->items[] = new Zend_Pdf_Element_Numeric($left);
        }

        if ($top === null) {
            $destinationArray->items[] = new Zend_Pdf_Element_Null();
        } else {
            $destinationArray->items[] = new Zend_Pdf_Element_Numeric($top);
        }

        if ($zoom === null) {
            $destinationArray->items[] = new Zend_Pdf_Element_Null();
        } else {
            $destinationArray->items[] = new Zend_Pdf_Element_Numeric($zoom);
        }

        return new Zend_Pdf_Destination_Zoom($destinationArray);
    }

    public function getLeftEdge()
    {
        return $this->_destinationArray->items[2]->value;
    }

    public function setLeftEdge($left)
    {
        if ($left === null) {
            $this->_destinationArray->items[2] = new Zend_Pdf_Element_Null();
        } else {
            $this->_destinationArray->items[2] = new Zend_Pdf_Element_Numeric($left);
        }

        return $this;
    }

    public function getTopEdge()
    {
        return $this->_destinationArray->items[3]->value;
    }

    public function setTopEdge($top)
    {
        if ($top === null) {
            $this->_destinationArray->items[3] = new Zend_Pdf_Element_Null();
        } else {
            $this->_destinationArray->items[3] = new Zend_Pdf_Element_Numeric($top);
        }

        return $this;
    }

    public function getZoomFactor()
    {
        return $this->_destinationArray->items[4]->value;
    }

    public function setZoomFactor($zoom)
    {
        if ($zoom === null) {
            $this->_destinationArray->items[4] = new Zend_Pdf_Element_Null();
        } else {
            $this->_destinationArray->items[4] = new Zend_Pdf_Element_Numeric($zoom);
        }

        return $this;
    }
}