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<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2010 PHPExcel
*
* 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 PHPExcel
* @package PHPExcel_Writer
* @copyright Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.4, 2010-08-26
*/
/**
* PHPExcel_Writer_Serialized
*
* @category PHPExcel
* @package PHPExcel_Writer
* @copyright Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
*/
class PHPExcel_Writer_Serialized implements PHPExcel_Writer_IWriter
{
/**
* Private PHPExcel
*
* @var PHPExcel
*/
private $_spreadSheet;
/**
* Create a new PHPExcel_Writer_Serialized
*
* @param PHPExcel $pPHPExcel
*/
public function __construct(PHPExcel $pPHPExcel = null)
{
// Assign PHPExcel
$this->setPHPExcel($pPHPExcel);
}
/**
* Save PHPExcel to file
*
* @param string $pFileName
* @throws Exception
*/
public function save($pFilename = null)
{
if (!is_null($this->_spreadSheet)) {
// Garbage collect
$this->_spreadSheet->garbageCollect();
// Garbage collect...
foreach ($this->_spreadSheet->getAllSheets() as $sheet) {
$sheet->garbageCollect();
}
// 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
$sheetCount = $this->_spreadSheet->getSheetCount();
for ($i = 0; $i < $sheetCount; ++$i) {
for ($j = 0; $j < $this->_spreadSheet->getSheet($i)->getDrawingCollection()->count(); ++$j) {
if ($this->_spreadSheet->getSheet($i)->getDrawingCollection()->offsetGet($j) instanceof PHPExcel_Worksheet_BaseDrawing) {
$imgTemp = $this->_spreadSheet->getSheet($i)->getDrawingCollection()->offsetGet($j);
$objZip->addFromString('media/' . $imgTemp->getFilename(), file_get_contents($imgTemp->getPath()));
}
}
}
// Add phpexcel.xml to the document, which represents a PHP serialized PHPExcel object
$objZip->addFromString('phpexcel.xml', $this->_writeSerialized($this->_spreadSheet, $pFilename));
// Close file
if ($objZip->close() === false) {
throw new Exception("Could not close zip file $pFilename.");
}
} else {
throw new Exception("PHPExcel object unassigned.");
}
}
/**
* Get PHPExcel object
*
* @return PHPExcel
* @throws Exception
*/
public function getPHPExcel() {
if (!is_null($this->_spreadSheet)) {
return $this->_spreadSheet;
} else {
throw new Exception("No PHPExcel assigned.");
}
}
/**
* Get PHPExcel object
*
* @param PHPExcel $pPHPExcel PHPExcel object
* @throws Exception
* @return PHPExcel_Writer_Serialized
*/
public function setPHPExcel(PHPExcel $pPHPExcel = null) {
$this->_spreadSheet = $pPHPExcel;
return $this;
}
/**
* Serialize PHPExcel object to XML
*
* @param PHPExcel $pPHPExcel
* @param string $pFilename
* @return string XML Output
* @throws Exception
*/
private function _writeSerialized(PHPExcel $pPHPExcel = null, $pFilename = '')
{
// Clone $pPHPExcel
$pPHPExcel = clone $pPHPExcel;
// Update media links
$sheetCount = $pPHPExcel->getSheetCount();
for ($i = 0; $i < $sheetCount; ++$i) {
for ($j = 0; $j < $pPHPExcel->getSheet($i)->getDrawingCollection()->count(); ++$j) {
if ($pPHPExcel->getSheet($i)->getDrawingCollection()->offsetGet($j) instanceof PHPExcel_Worksheet_BaseDrawing) {
$imgTemp =& $pPHPExcel->getSheet($i)->getDrawingCollection()->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');
// PHPExcel
$objWriter->startElement('PHPExcel');
$objWriter->writeAttribute('version', '1.7.4');
// Comment
$objWriter->writeComment('This file has been generated using PHPExcel v1.7.4 (http://www.codeplex.com/PHPExcel). It contains a base64 encoded serialized version of the PHPExcel internal object.');
// Data
$objWriter->startElement('data');
$objWriter->writeCData( base64_encode(serialize($pPHPExcel)) );
$objWriter->endElement();
$objWriter->endElement();
// Return
return $objWriter->outputMemory(true);
}
}
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