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diff --git a/admin/survey/excel/PHPExcel/Writer/Excel2007.php b/admin/survey/excel/PHPExcel/Writer/Excel2007.php
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-<?php

-/**

- * PHPExcel

- *

- * Copyright (c) 2006 - 2012 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_Excel2007

- * @copyright  Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)

- * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL

- * @version    1.7.8, 2012-10-12

- */

-

-

-/**

- * PHPExcel_Writer_Excel2007

- *

- * @category   PHPExcel

- * @package    PHPExcel_Writer_Excel2007

- * @copyright  Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)

- */

-class PHPExcel_Writer_Excel2007 implements PHPExcel_Writer_IWriter

-{

-	/**

-	 * Write charts that are defined in the workbook?

-	 * Identifies whether the Writer should write definitions for any charts that exist in the PHPExcel object;

-	 *

-	 * @var	boolean

-	 */

-	private $_includeCharts = false;

-

-	/**

-	 * Pre-calculate formulas

-	 *

-	 * @var boolean

-	 */

-	private $_preCalculateFormulas = true;

-

-	/**

-	 * Office2003 compatibility

-	 *

-	 * @var boolean

-	 */

-	private $_office2003compatibility = false;

-

-	/**

-	 * Private writer parts

-	 *

-	 * @var PHPExcel_Writer_Excel2007_WriterPart[]

-	 */

-	private $_writerParts	= array();

-

-	/**

-	 * Private PHPExcel

-	 *

-	 * @var PHPExcel

-	 */

-	private $_spreadSheet;

-

-	/**

-	 * Private string table

-	 *

-	 * @var string[]

-	 */

-	private $_stringTable	= array();

-

-	/**

-	 * Private unique PHPExcel_Style_Conditional HashTable

-	 *

-	 * @var PHPExcel_HashTable

-	 */

-	private $_stylesConditionalHashTable;

-

-	/**

-	 * Private unique PHPExcel_Style_Fill HashTable

-	 *

-	 * @var PHPExcel_HashTable

-	 */

-	private $_fillHashTable;

-

-	/**

-	 * Private unique PHPExcel_Style_Font HashTable

-	 *

-	 * @var PHPExcel_HashTable

-	 */

-	private $_fontHashTable;

-

-	/**

-	 * Private unique PHPExcel_Style_Borders HashTable

-	 *

-	 * @var PHPExcel_HashTable

-	 */

-	private $_bordersHashTable ;

-

-	/**

-	 * Private unique PHPExcel_Style_NumberFormat HashTable

-	 *

-	 * @var PHPExcel_HashTable

-	 */

-	private $_numFmtHashTable;

-

-	/**

-	 * Private unique PHPExcel_Worksheet_BaseDrawing HashTable

-	 *

-	 * @var PHPExcel_HashTable

-	 */

-	private $_drawingHashTable;

-

-	/**

-	 * Use disk caching where possible?

-	 *

-	 * @var boolean

-	 */

-	private $_useDiskCaching = false;

-

-	/**

-	 * Disk caching directory

-	 *

-	 * @var string

-	 */

-	private $_diskCachingDirectory	= './';

-

-    /**

-     * Create a new PHPExcel_Writer_Excel2007

-     *

-	 * @param 	PHPExcel	$pPHPExcel

-     */

-    public function __construct(PHPExcel $pPHPExcel = null)

-    {

-    	// Assign PHPExcel

-		$this->setPHPExcel($pPHPExcel);

-

-    	$writerPartsArray = array(	'stringtable'	=> 'PHPExcel_Writer_Excel2007_StringTable',

-									'contenttypes'	=> 'PHPExcel_Writer_Excel2007_ContentTypes',

-									'docprops' 		=> 'PHPExcel_Writer_Excel2007_DocProps',

-									'rels'			=> 'PHPExcel_Writer_Excel2007_Rels',

-									'theme' 		=> 'PHPExcel_Writer_Excel2007_Theme',

-									'style' 		=> 'PHPExcel_Writer_Excel2007_Style',

-									'workbook' 		=> 'PHPExcel_Writer_Excel2007_Workbook',

-									'worksheet' 	=> 'PHPExcel_Writer_Excel2007_Worksheet',

-									'drawing' 		=> 'PHPExcel_Writer_Excel2007_Drawing',

-									'comments' 		=> 'PHPExcel_Writer_Excel2007_Comments',

-									'chart'			=> 'PHPExcel_Writer_Excel2007_Chart',

-								 );

-

-    	//	Initialise writer parts

-		//		and Assign their parent IWriters

-		foreach ($writerPartsArray as $writer => $class) {

-			$this->_writerParts[$writer] = new $class($this);

-		}

-

-    	$hashTablesArray = array( '_stylesConditionalHashTable',	'_fillHashTable',		'_fontHashTable',

-								  '_bordersHashTable',				'_numFmtHashTable',		'_drawingHashTable'

-							    );

-

-		// Set HashTable variables

-		foreach ($hashTablesArray as $tableName) {

-			$this->$tableName 	= new PHPExcel_HashTable();

-		}

-    }

-

-	/**

-	 * Get writer part

-	 *

-	 * @param 	string 	$pPartName		Writer part name

-	 * @return 	PHPExcel_Writer_Excel2007_WriterPart

-	 */

-	public function getWriterPart($pPartName = '') {

-		if ($pPartName != '' && isset($this->_writerParts[strtolower($pPartName)])) {

-			return $this->_writerParts[strtolower($pPartName)];

-		} else {

-			return null;

-		}

-	}

-

-	/**

-	 * Save PHPExcel to file

-	 *

-	 * @param 	string 		$pFilename

-	 * @throws 	Exception

-	 */

-	public function save($pFilename = null)

-	{

-		if ($this->_spreadSheet !== NULL) {

-			// garbage collect

-			$this->_spreadSheet->garbageCollect();

-

-			// If $pFilename is php://output or php://stdout, make it a temporary file...

-			$originalFilename = $pFilename;

-			if (strtolower($pFilename) == 'php://output' || strtolower($pFilename) == 'php://stdout') {

-				$pFilename = @tempnam(PHPExcel_Shared_File::sys_get_temp_dir(), 'phpxltmp');

-				if ($pFilename == '') {

-					$pFilename = $originalFilename;

-				}

-			}

-

-			$saveDebugLog = PHPExcel_Calculation::getInstance()->writeDebugLog;

-			PHPExcel_Calculation::getInstance()->writeDebugLog = false;

-			$saveDateReturnType = PHPExcel_Calculation_Functions::getReturnDateType();

-			PHPExcel_Calculation_Functions::setReturnDateType(PHPExcel_Calculation_Functions::RETURNDATE_EXCEL);

-

-			// Create string lookup table

-			$this->_stringTable = array();

-			for ($i = 0; $i < $this->_spreadSheet->getSheetCount(); ++$i) {

-				$this->_stringTable = $this->getWriterPart('StringTable')->createStringTable($this->_spreadSheet->getSheet($i), $this->_stringTable);

-			}

-

-			// Create styles dictionaries

-			$this->_stylesConditionalHashTable->addFromSource( 	$this->getWriterPart('Style')->allConditionalStyles($this->_spreadSheet) 			);

-			$this->_fillHashTable->addFromSource( 				$this->getWriterPart('Style')->allFills($this->_spreadSheet) 			);

-			$this->_fontHashTable->addFromSource( 				$this->getWriterPart('Style')->allFonts($this->_spreadSheet) 			);

-			$this->_bordersHashTable->addFromSource( 			$this->getWriterPart('Style')->allBorders($this->_spreadSheet) 			);

-			$this->_numFmtHashTable->addFromSource( 			$this->getWriterPart('Style')->allNumberFormats($this->_spreadSheet) 	);

-

-			// Create drawing dictionary

-			$this->_drawingHashTable->addFromSource( 			$this->getWriterPart('Drawing')->allDrawings($this->_spreadSheet) 		);

-

-			// Create new ZIP file and open it for writing

-			$zipClass = PHPExcel_Settings::getZipClass();

-			$objZip = new $zipClass();

-

-			//	Retrieve OVERWRITE and CREATE constants from the instantiated zip class

-			//	This method of accessing constant values from a dynamic class should work with all appropriate versions of PHP

-			$ro = new ReflectionObject($objZip);

-			$zipOverWrite = $ro->getConstant('OVERWRITE');

-			$zipCreate = $ro->getConstant('CREATE');

-

-			if (file_exists($pFilename)) {

-				unlink($pFilename);

-			}

-			// Try opening the ZIP file

-			if ($objZip->open($pFilename, $zipOverWrite) !== true) {

-				if ($objZip->open($pFilename, $zipCreate) !== true) {

-					throw new Exception("Could not open " . $pFilename . " for writing.");

-				}

-			}

-

-			// Add [Content_Types].xml to ZIP file

-			$objZip->addFromString('[Content_Types].xml', 			$this->getWriterPart('ContentTypes')->writeContentTypes($this->_spreadSheet, $this->_includeCharts));

-

-			// Add relationships to ZIP file

-			$objZip->addFromString('_rels/.rels', 					$this->getWriterPart('Rels')->writeRelationships($this->_spreadSheet));

-			$objZip->addFromString('xl/_rels/workbook.xml.rels', 	$this->getWriterPart('Rels')->writeWorkbookRelationships($this->_spreadSheet));

-

-			// Add document properties to ZIP file

-			$objZip->addFromString('docProps/app.xml', 				$this->getWriterPart('DocProps')->writeDocPropsApp($this->_spreadSheet));

-			$objZip->addFromString('docProps/core.xml', 			$this->getWriterPart('DocProps')->writeDocPropsCore($this->_spreadSheet));

-			$customPropertiesPart = $this->getWriterPart('DocProps')->writeDocPropsCustom($this->_spreadSheet);

-			if ($customPropertiesPart !== NULL) {

-				$objZip->addFromString('docProps/custom.xml', 		$customPropertiesPart);

-			}

-

-			// Add theme to ZIP file

-			$objZip->addFromString('xl/theme/theme1.xml', 			$this->getWriterPart('Theme')->writeTheme($this->_spreadSheet));

-

-			// Add string table to ZIP file

-			$objZip->addFromString('xl/sharedStrings.xml', 			$this->getWriterPart('StringTable')->writeStringTable($this->_stringTable));

-

-			// Add styles to ZIP file

-			$objZip->addFromString('xl/styles.xml', 				$this->getWriterPart('Style')->writeStyles($this->_spreadSheet));

-

-			// Add workbook to ZIP file

-			$objZip->addFromString('xl/workbook.xml', 				$this->getWriterPart('Workbook')->writeWorkbook($this->_spreadSheet, $this->_preCalculateFormulas));

-

-			$chartCount = 0;

-			// Add worksheets

-			for ($i = 0; $i < $this->_spreadSheet->getSheetCount(); ++$i) {

-				$objZip->addFromString('xl/worksheets/sheet' . ($i + 1) . '.xml', $this->getWriterPart('Worksheet')->writeWorksheet($this->_spreadSheet->getSheet($i), $this->_stringTable, $this->_includeCharts));

-				if ($this->_includeCharts) {

-					$charts = $this->_spreadSheet->getSheet($i)->getChartCollection();

-					if (count($charts) > 0) {

-						foreach($charts as $chart) {

-							$objZip->addFromString('xl/charts/chart' . ($chartCount + 1) . '.xml', $this->getWriterPart('Chart')->writeChart($chart));

-							$chartCount++;

-						}

-					}

-				}

-			}

-

-			$chartRef1 = $chartRef2 = 0;

-			// Add worksheet relationships (drawings, ...)

-			for ($i = 0; $i < $this->_spreadSheet->getSheetCount(); ++$i) {

-

-				// Add relationships

-				$objZip->addFromString('xl/worksheets/_rels/sheet' . ($i + 1) . '.xml.rels', 	$this->getWriterPart('Rels')->writeWorksheetRelationships($this->_spreadSheet->getSheet($i), ($i + 1), $this->_includeCharts));

-

-				$drawings = $this->_spreadSheet->getSheet($i)->getDrawingCollection();

-				$drawingCount = count($drawings);

-				if ($this->_includeCharts) {

-					$chartCount = $this->_spreadSheet->getSheet($i)->getChartCount();

-				}

-

-				// Add drawing and image relationship parts

-				if (($drawingCount > 0) || ($chartCount > 0)) {

-					// Drawing relationships

-					$objZip->addFromString('xl/drawings/_rels/drawing' . ($i + 1) . '.xml.rels', $this->getWriterPart('Rels')->writeDrawingRelationships($this->_spreadSheet->getSheet($i),$chartRef1, $this->_includeCharts));

-

-					// Drawings

-					$objZip->addFromString('xl/drawings/drawing' . ($i + 1) . '.xml', $this->getWriterPart('Drawing')->writeDrawings($this->_spreadSheet->getSheet($i),$chartRef2,$this->_includeCharts));

-				}

-

-				// Add comment relationship parts

-				if (count($this->_spreadSheet->getSheet($i)->getComments()) > 0) {

-					// VML Comments

-					$objZip->addFromString('xl/drawings/vmlDrawing' . ($i + 1) . '.vml', $this->getWriterPart('Comments')->writeVMLComments($this->_spreadSheet->getSheet($i)));

-

-					// Comments

-					$objZip->addFromString('xl/comments' . ($i + 1) . '.xml', $this->getWriterPart('Comments')->writeComments($this->_spreadSheet->getSheet($i)));

-				}

-

-				// Add header/footer relationship parts

-				if (count($this->_spreadSheet->getSheet($i)->getHeaderFooter()->getImages()) > 0) {

-					// VML Drawings

-					$objZip->addFromString('xl/drawings/vmlDrawingHF' . ($i + 1) . '.vml', $this->getWriterPart('Drawing')->writeVMLHeaderFooterImages($this->_spreadSheet->getSheet($i)));

-

-					// VML Drawing relationships

-					$objZip->addFromString('xl/drawings/_rels/vmlDrawingHF' . ($i + 1) . '.vml.rels', $this->getWriterPart('Rels')->writeHeaderFooterDrawingRelationships($this->_spreadSheet->getSheet($i)));

-

-					// Media

-					foreach ($this->_spreadSheet->getSheet($i)->getHeaderFooter()->getImages() as $image) {

-						$objZip->addFromString('xl/media/' . $image->getIndexedFilename(), file_get_contents($image->getPath()));

-					}

-				}

-			}

-

-			// Add media

-			for ($i = 0; $i < $this->getDrawingHashTable()->count(); ++$i) {

-				if ($this->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_Drawing) {

-					$imageContents = null;

-					$imagePath = $this->getDrawingHashTable()->getByIndex($i)->getPath();

-

-					if (strpos($imagePath, 'zip://') !== false) {

-						$imagePath = substr($imagePath, 6);

-						$imagePathSplitted = explode('#', $imagePath);

-

-						$imageZip = new ZipArchive();

-						$imageZip->open($imagePathSplitted[0]);

-						$imageContents = $imageZip->getFromName($imagePathSplitted[1]);

-						$imageZip->close();

-						unset($imageZip);

-					} else {

-						$imageContents = file_get_contents($imagePath);

-					}

-

-					$objZip->addFromString('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);

-				} else if ($this->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_MemoryDrawing) {

-					ob_start();

-					call_user_func(

-						$this->getDrawingHashTable()->getByIndex($i)->getRenderingFunction(),

-						$this->getDrawingHashTable()->getByIndex($i)->getImageResource()

-					);

-					$imageContents = ob_get_contents();

-					ob_end_clean();

-

-					$objZip->addFromString('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);

-				}

-			}

-

-			PHPExcel_Calculation_Functions::setReturnDateType($saveDateReturnType);

-			PHPExcel_Calculation::getInstance()->writeDebugLog = $saveDebugLog;

-

-			// Close file

-			if ($objZip->close() === false) {

-				throw new Exception("Could not close zip file $pFilename.");

-			}

-

-			// If a temporary file was used, copy it to the correct file stream

-			if ($originalFilename != $pFilename) {

-				if (copy($pFilename, $originalFilename) === false) {

-					throw new Exception("Could not copy temporary zip file $pFilename to $originalFilename.");

-				}

-				@unlink($pFilename);

-			}

-		} else {

-			throw new Exception("PHPExcel object unassigned.");

-		}

-	}

-

-	/**

-	 * Get PHPExcel object

-	 *

-	 * @return PHPExcel

-	 * @throws Exception

-	 */

-	public function getPHPExcel() {

-		if ($this->_spreadSheet !== null) {

-			return $this->_spreadSheet;

-		} else {

-			throw new Exception("No PHPExcel assigned.");

-		}

-	}

-

-	/**

-	 * Set PHPExcel object

-	 *

-	 * @param 	PHPExcel 	$pPHPExcel	PHPExcel object

-	 * @throws	Exception

-	 * @return PHPExcel_Writer_Excel2007

-	 */

-	public function setPHPExcel(PHPExcel $pPHPExcel = null) {

-		$this->_spreadSheet = $pPHPExcel;

-		return $this;

-	}

-

-    /**

-     * Get string table

-     *

-     * @return string[]

-     */

-    public function getStringTable() {

-    	return $this->_stringTable;

-    }

-

-    /**

-     * Get PHPExcel_Style_Conditional HashTable

-     *

-     * @return PHPExcel_HashTable

-     */

-    public function getStylesConditionalHashTable() {

-    	return $this->_stylesConditionalHashTable;

-    }

-

-    /**

-     * Get PHPExcel_Style_Fill HashTable

-     *

-     * @return PHPExcel_HashTable

-     */

-    public function getFillHashTable() {

-    	return $this->_fillHashTable;

-    }

-

-    /**

-     * Get PHPExcel_Style_Font HashTable

-     *

-     * @return PHPExcel_HashTable

-     */

-    public function getFontHashTable() {

-    	return $this->_fontHashTable;

-    }

-

-    /**

-     * Get PHPExcel_Style_Borders HashTable

-     *

-     * @return PHPExcel_HashTable

-     */

-    public function getBordersHashTable() {

-    	return $this->_bordersHashTable;

-    }

-

-    /**

-     * Get PHPExcel_Style_NumberFormat HashTable

-     *

-     * @return PHPExcel_HashTable

-     */

-    public function getNumFmtHashTable() {

-    	return $this->_numFmtHashTable;

-    }

-

-    /**

-     * Get PHPExcel_Worksheet_BaseDrawing HashTable

-     *

-     * @return PHPExcel_HashTable

-     */

-    public function getDrawingHashTable() {

-    	return $this->_drawingHashTable;

-    }

-

-	/**

-	 * Write charts in workbook?

-	 *		If this is true, then the Writer will write definitions for any charts that exist in the PHPExcel object.

-	 *		If false (the default) it will ignore any charts defined in the PHPExcel object.

-	 *

-	 * @return	boolean

-	 */

-	public function getIncludeCharts() {

-		return $this->_includeCharts;

-	}

-

-	/**

-	 * Set write charts in workbook

-	 *		Set to true, to advise the Writer to include any charts that exist in the PHPExcel object.

-	 *		Set to false (the default) to ignore charts.

-	 *

-	 * @param	boolean	$pValue

-	 *

-	 * @return	PHPExcel_Writer_Excel2007

-	 */

-	public function setIncludeCharts($pValue = false) {

-		$this->_includeCharts = (boolean) $pValue;

-		return $this;

-	}

-

-    /**

-     * Get Pre-Calculate Formulas

-     *

-     * @return boolean

-     */

-    public function getPreCalculateFormulas() {

-    	return $this->_preCalculateFormulas;

-    }

-

-    /**

-     * Set Pre-Calculate Formulas

-     *

-     * @param boolean $pValue	Pre-Calculate Formulas?

-     */

-    public function setPreCalculateFormulas($pValue = true) {

-    	$this->_preCalculateFormulas = $pValue;

-    }

-

-    /**

-     * Get Office2003 compatibility

-     *

-     * @return boolean

-     */

-    public function getOffice2003Compatibility() {

-    	return $this->_office2003compatibility;

-    }

-

-    /**

-     * Set Pre-Calculate Formulas

-     *

-     * @param boolean $pValue	Office2003 compatibility?

-     * @return PHPExcel_Writer_Excel2007

-     */

-    public function setOffice2003Compatibility($pValue = false) {

-    	$this->_office2003compatibility = $pValue;

-    	return $this;

-    }

-

-	/**

-	 * Get use disk caching where possible?

-	 *

-	 * @return boolean

-	 */

-	public function getUseDiskCaching() {

-		return $this->_useDiskCaching;

-	}

-

-	/**

-	 * Set use disk caching where possible?

-	 *

-	 * @param 	boolean 	$pValue

-	 * @param	string		$pDirectory		Disk caching directory

-	 * @throws	Exception	Exception when directory does not exist

-	 * @return PHPExcel_Writer_Excel2007

-	 */

-	public function setUseDiskCaching($pValue = false, $pDirectory = null) {

-		$this->_useDiskCaching = $pValue;

-

-		if ($pDirectory !== NULL) {

-    		if (is_dir($pDirectory)) {

-    			$this->_diskCachingDirectory = $pDirectory;

-    		} else {

-    			throw new Exception("Directory does not exist: $pDirectory");

-    		}

-		}

-		return $this;

-	}

-

-	/**

-	 * Get disk caching directory

-	 *

-	 * @return string

-	 */

-	public function getDiskCachingDirectory() {

-		return $this->_diskCachingDirectory;

-	}

-}