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<?php
/**
* PHPPowerPoint
*
* Copyright (c) 2009 - 2010 PHPPowerPoint
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category PHPPowerPoint
* @package PHPPowerPoint_Writer
* @copyright Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 0.1.0, 2009-04-27
*/
/** PHPPowerPoint */
require_once 'PHPPowerPoint.php';
/** PHPPowerPoint_HashTable */
require_once 'PHPPowerPoint/HashTable.php';
/** PHPPowerPoint_IComparable */
require_once 'PHPPowerPoint/IComparable.php';
/** PHPPowerPoint_Slide */
require_once 'PHPPowerPoint/Slide.php';
/** PHPPowerPoint_IWriter */
require_once 'PHPPowerPoint/Writer/IWriter.php';
/**
* PHPPowerPoint_Writer_Serialized
*
* @category PHPPowerPoint
* @package PHPPowerPoint_Writer
* @copyright Copyright (c) 2009 - 2010 PHPPowerPoint (http://www.codeplex.com/PHPPowerPoint)
*/
class PHPPowerPoint_Writer_Serialized implements PHPPowerPoint_Writer_IWriter
{
/**
* Private PHPPowerPoint
*
* @var PHPPowerPoint
*/
private $_presentation;
/**
* Create a new PHPPowerPoint_Writer_Serialized
*
* @param PHPPowerPoint $pPHPPowerPoint
*/
public function __construct(PHPPowerPoint $pPHPPowerPoint = null)
{
// Assign PHPPowerPoint
$this->setPHPPowerPoint($pPHPPowerPoint);
}
/**
* Save PHPPowerPoint to file
*
* @param string $pFileName
* @throws Exception
*/
public function save($pFilename = null)
{
if (!is_null($this->_presentation)) {
// Create new ZIP file and open it for writing
$objZip = new ZipArchive();
// Try opening the ZIP file
if ($objZip->open($pFilename, ZIPARCHIVE::OVERWRITE) !== true) {
if ($objZip->open($pFilename, ZIPARCHIVE::CREATE) !== true) {
throw new Exception("Could not open " . $pFilename . " for writing.");
}
}
// Add media
$slideCount = $this->_presentation->getSlideCount();
for ($i = 0; $i < $slideCount; ++$i) {
for ($j = 0; $j < $this->_presentation->getSlide($i)->getShapeCollection()->count(); ++$j) {
if ($this->_presentation->getSlide($i)->getShapeCollection()->offsetGet($j) instanceof PHPPowerPoint_Shape_BaseDrawing) {
$imgTemp = $this->_presentation->getSlide($i)->getShapeCollection()->offsetGet($j);
$objZip->addFromString('media/' . $imgTemp->getFilename(), file_get_contents($imgTemp->getPath()));
}
}
}
// Add PHPPowerPoint.xml to the document, which represents a PHP serialized PHPPowerPoint object
$objZip->addFromString('PHPPowerPoint.xml', $this->_writeSerialized($this->_presentation, $pFilename));
// Close file
if ($objZip->close() === false) {
throw new Exception("Could not close zip file $pFilename.");
}
} else {
throw new Exception("PHPPowerPoint object unassigned.");
}
}
/**
* Get PHPPowerPoint object
*
* @return PHPPowerPoint
* @throws Exception
*/
public function getPHPPowerPoint() {
if (!is_null($this->_presentation)) {
return $this->_presentation;
} else {
throw new Exception("No PHPPowerPoint assigned.");
}
}
/**
* Get PHPPowerPoint object
*
* @param PHPPowerPoint $pPHPPowerPoint PHPPowerPoint object
* @throws Exception
*/
public function setPHPPowerPoint(PHPPowerPoint $pPHPPowerPoint = null) {
$this->_presentation = $pPHPPowerPoint;
}
/**
* Serialize PHPPowerPoint object to XML
*
* @param PHPPowerPoint $pPHPPowerPoint
* @param string $pFilename
* @return string XML Output
* @throws Exception
*/
private function _writeSerialized(PHPPowerPoint $pPHPPowerPoint = null, $pFilename = '')
{
// Clone $pPHPPowerPoint
$pPHPPowerPoint = clone $pPHPPowerPoint;
// Update media links
$slideCount = $pPHPPowerPoint->getSlideCount();
for ($i = 0; $i < $slideCount; ++$i) {
for ($j = 0; $j < $pPHPPowerPoint->getSlide($i)->getShapeCollection()->count(); ++$j) {
if ($pPHPPowerPoint->getSlide($i)->getShapeCollection()->offsetGet($j) instanceof PHPPowerPoint_Shape_BaseDrawing) {
$imgTemp =& $pPHPPowerPoint->getSlide($i)->getShapeCollection()->offsetGet($j);
$imgTemp->setPath('zip://' . $pFilename . '#media/' . $imgTemp->getFilename(), false);
}
}
}
// Create XML writer
$objWriter = new xmlWriter();
$objWriter->openMemory();
$objWriter->setIndent(true);
// XML header
$objWriter->startDocument('1.0','UTF-8','yes');
// PHPPowerPoint
$objWriter->startElement('PHPPowerPoint');
$objWriter->writeAttribute('version', '0.1.0');
// Comment
$objWriter->writeComment('This file has been generated using PHPPowerPoint v0.1.0 (http://www.codeplex.com/PHPPowerPoint). It contains a base64 encoded serialized version of the PHPPowerPoint internal object.');
// Data
$objWriter->startElement('data');
$objWriter->writeCData( base64_encode(serialize($pPHPPowerPoint)) );
$objWriter->endElement();
$objWriter->endElement();
// Return
return $objWriter->outputMemory(true);
}
}
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