From 270ea1df052aa862432247340efbd6f0156f15c4 Mon Sep 17 00:00:00 2001
From: Mark Baker <mark@lange.demon.co.uk>
Date: Sun, 14 Nov 2010 00:17:32 +0000
Subject: [PATCH] Minor performance tweaks

git-svn-id: https://phpexcel.svn.codeplex.com/svn/trunk@63697 2327b42d-5241-43d6-9e2a-de5ac946f064
---
 Classes/PHPExcel/Writer/CSV.php  |  62 ++++----
 Classes/PHPExcel/Writer/HTML.php | 238 +++++++++++++++----------------
 2 files changed, 150 insertions(+), 150 deletions(-)

diff --git a/Classes/PHPExcel/Writer/CSV.php b/Classes/PHPExcel/Writer/CSV.php
index 1c756637..9f271007 100644
--- a/Classes/PHPExcel/Writer/CSV.php
+++ b/Classes/PHPExcel/Writer/CSV.php
@@ -19,10 +19,10 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  * @category   PHPExcel
- * @package    PHPExcel_Writer
+ * @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    ##VERSION##, ##DATE##
+ * @license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
+ * @version	##VERSION##, ##DATE##
  */
 
 
@@ -30,7 +30,7 @@
  * PHPExcel_Writer_CSV
  *
  * @category   PHPExcel
- * @package    PHPExcel_Writer
+ * @package	PHPExcel_Writer
  * @copyright  Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
  */
 class PHPExcel_Writer_CSV implements PHPExcel_Writer_IWriter {
@@ -86,21 +86,21 @@ class PHPExcel_Writer_CSV implements PHPExcel_Writer_IWriter {
 	/**
 	 * Create a new PHPExcel_Writer_CSV
 	 *
-	 * @param 	PHPExcel	$phpExcel	PHPExcel object
+	 * @param	PHPExcel	$phpExcel	PHPExcel object
 	 */
 	public function __construct(PHPExcel $phpExcel) {
-		$this->_phpExcel 	= $phpExcel;
-		$this->_delimiter 	= ',';
-		$this->_enclosure 	= '"';
-		$this->_lineEnding 	= PHP_EOL;
-		$this->_sheetIndex 	= 0;
+		$this->_phpExcel	= $phpExcel;
+		$this->_delimiter	= ',';
+		$this->_enclosure	= '"';
+		$this->_lineEnding	= PHP_EOL;
+		$this->_sheetIndex	= 0;
 	}
 
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param 	string 		$pFileName
-	 * @throws 	Exception
+	 * @param	string		$pFileName
+	 * @throws	Exception
 	 */
 	public function save($pFilename = null) {
 		// Fetch sheet
@@ -112,7 +112,7 @@ class PHPExcel_Writer_CSV implements PHPExcel_Writer_IWriter {
 		PHPExcel_Calculation::setArrayReturnType(PHPExcel_Calculation::RETURN_ARRAY_AS_VALUE);
 
 		// Open file
-		$fileHandle = fopen($pFilename, 'w');
+		$fileHandle = fopen($pFilename, 'wb+');
 		if ($fileHandle === false) {
 			throw new Exception("Could not open file $pFilename for writing.");
 		}
@@ -280,23 +280,23 @@ class PHPExcel_Writer_CSV implements PHPExcel_Writer_IWriter {
 		}
 	}
 
-    /**
-     * Get Pre-Calculate Formulas
-     *
-     * @return boolean
-     */
-    public function getPreCalculateFormulas() {
-    	return $this->_preCalculateFormulas;
-    }
+	/**
+	 * Get Pre-Calculate Formulas
+	 *
+	 * @return boolean
+	 */
+	public function getPreCalculateFormulas() {
+		return $this->_preCalculateFormulas;
+	}
 
-    /**
-     * Set Pre-Calculate Formulas
-     *
-     * @param boolean $pValue	Pre-Calculate Formulas?
-     * @return PHPExcel_Writer_CSV
-     */
-    public function setPreCalculateFormulas($pValue = true) {
-    	$this->_preCalculateFormulas = $pValue;
-    	return $this;
-    }
+	/**
+	 * Set Pre-Calculate Formulas
+	 *
+	 * @param boolean $pValue	Pre-Calculate Formulas?
+	 * @return PHPExcel_Writer_CSV
+	 */
+	public function setPreCalculateFormulas($pValue = true) {
+		$this->_preCalculateFormulas = $pValue;
+		return $this;
+	}
 }
diff --git a/Classes/PHPExcel/Writer/HTML.php b/Classes/PHPExcel/Writer/HTML.php
index b3b647d9..d0b83812 100644
--- a/Classes/PHPExcel/Writer/HTML.php
+++ b/Classes/PHPExcel/Writer/HTML.php
@@ -19,10 +19,10 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  * @category   PHPExcel
- * @package    PHPExcel_Writer
+ * @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    ##VERSION##, ##DATE##
+ * @license	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
+ * @version	##VERSION##, ##DATE##
  */
 
 
@@ -30,7 +30,7 @@
  * PHPExcel_Writer_HTML
  *
  * @category   PHPExcel
- * @package    PHPExcel_Writer
+ * @package	PHPExcel_Writer
  * @copyright  Copyright (c) 2006 - 2010 PHPExcel (http://www.codeplex.com/PHPExcel)
  */
 class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
@@ -135,7 +135,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Create a new PHPExcel_Writer_HTML
 	 *
-	 * @param 	PHPExcel	$phpExcel	PHPExcel object
+	 * @param	PHPExcel	$phpExcel	PHPExcel object
 	 */
 	public function __construct(PHPExcel $phpExcel) {
 		$this->_phpExcel = $phpExcel;
@@ -145,15 +145,15 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 
 		$this->_spansAreCalculated = false;
 		$this->_isSpannedCell = array();
-		$this->_isBaseCell    = array();
+		$this->_isBaseCell	= array();
 		$this->_isSpannedRow  = array();
 	}
 
 	/**
 	 * Save PHPExcel to file
 	 *
-	 * @param 	string 		$pFileName
-	 * @throws 	Exception
+	 * @param	string		$pFileName
+	 * @throws	Exception
 	 */
 	public function save($pFilename = null) {
 		// garbage collect
@@ -168,7 +168,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 		$this->buildCSS(!$this->_useInlineCss);
 
 		// Open file
-		$fileHandle = fopen($pFilename, 'w');
+		$fileHandle = fopen($pFilename, 'wb+');
 		if ($fileHandle === false) {
 			throw new Exception("Could not open file $pFilename for writing.");
 		}
@@ -313,8 +313,8 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 		$html .= '<!-- Generated by PHPExcel - http://www.phpexcel.net -->' . "\r\n";
 		$html .= '<html>' . "\r\n";
 		$html .= '  <head>' . "\r\n";
-		$html .= '    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">' . "\r\n";
-		$html .= '    <title>' . htmlspecialchars($this->_phpExcel->getProperties()->getTitle()) . '</title>' . "\r\n";
+		$html .= '	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">' . "\r\n";
+		$html .= '	<title>' . htmlspecialchars($this->_phpExcel->getProperties()->getTitle()) . '</title>' . "\r\n";
 		if ($pIncludeStyles) {
 			$html .= $this->generateStyles(true);
 		}
@@ -360,20 +360,20 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 			// Write table header
 			$html .= $this->_generateTableHeader($sheet);
 
-	    	// Get worksheet dimension
-	    	$dimension = explode(':', $sheet->calculateWorksheetDimension());
-	    	$dimension[0] = PHPExcel_Cell::coordinateFromString($dimension[0]);
-	    	$dimension[0][0] = PHPExcel_Cell::columnIndexFromString($dimension[0][0]) - 1;
-	    	$dimension[1] = PHPExcel_Cell::coordinateFromString($dimension[1]);
-	    	$dimension[1][0] = PHPExcel_Cell::columnIndexFromString($dimension[1][0]) - 1;
+			// Get worksheet dimension
+			$dimension = explode(':', $sheet->calculateWorksheetDimension());
+			$dimension[0] = PHPExcel_Cell::coordinateFromString($dimension[0]);
+			$dimension[0][0] = PHPExcel_Cell::columnIndexFromString($dimension[0][0]) - 1;
+			$dimension[1] = PHPExcel_Cell::coordinateFromString($dimension[1]);
+			$dimension[1][0] = PHPExcel_Cell::columnIndexFromString($dimension[1][0]) - 1;
 
-	    	// row min,max
+			// row min,max
 			$rowMin = $dimension[0][1];
 			$rowMax = $dimension[1][1];
 
 			// calculate start of <tbody>, <thead>
 			$tbodyStart = $rowMin;
-	    	$tbodyEnd   = $rowMax;
+			$tbodyEnd   = $rowMax;
 			$theadStart = 0; // default: no <thead>
 			$theadEnd   = 0; // default: no </thead>
 			if ($sheet->getPageSetup()->isRowsToRepeatAtTopSet()) {
@@ -388,29 +388,29 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 			}
 
 			// Loop through cells
-	    	$rowData = null;
-	    	for ($row = $rowMin; $row <= $rowMax; ++$row) {
+			$rowData = null;
+			for ($row = $rowMin; $row <= $rowMax; ++$row) {
 				// Start a new row
 				$rowData = array();
 
 				// Loop through columns
-	    		for ($column = $dimension[0][0]; $column <= $dimension[1][0]; ++$column) {
-	    			// Cell exists?
-	    			if ($sheet->cellExistsByColumnAndRow($column, $row)) {
-	    				$rowData[$column] = $cell = $sheet->getCellByColumnAndRow($column, $row);
-	    			} else {
-	    				$rowData[$column] = '';
-	    			}
-	    		}
-
-	    		// <thead> ?
-				if ($row == $theadStart) {
-					$html .= '        <thead>' . "\r\n";
+				for ($column = $dimension[0][0]; $column <= $dimension[1][0]; ++$column) {
+					// Cell exists?
+					if ($sheet->cellExistsByColumnAndRow($column, $row)) {
+						$rowData[$column] = $cell = $sheet->getCellByColumnAndRow($column, $row);
+					} else {
+						$rowData[$column] = '';
+					}
 				}
 
-	    		// <tbody> ?
+				// <thead> ?
+				if ($row == $theadStart) {
+					$html .= '		<thead>' . "\r\n";
+				}
+
+				// <tbody> ?
 				if ($row == $tbodyStart) {
-					$html .= '        <tbody>' . "\r\n";
+					$html .= '		<tbody>' . "\r\n";
 				}
 
 				// Write row if there are HTML table cells in it
@@ -418,16 +418,16 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 					$html .= $this->_generateRow($sheet, $rowData, $row - 1);
 				}
 
-	    		// </thead> ?
+				// </thead> ?
 				if ($row == $theadEnd) {
-					$html .= '        </thead>' . "\r\n";
+					$html .= '		</thead>' . "\r\n";
 				}
 
-	    		// </tbody> ?
+				// </tbody> ?
 				if ($row == $tbodyEnd) {
-					$html .= '        </tbody>' . "\r\n";
+					$html .= '		</tbody>' . "\r\n";
 				}
-	    	}
+			}
 
 			// Write table footer
 			$html .= $this->_generateTableFooter();
@@ -493,7 +493,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Generate image tag in cell
 	 *
-	 * @param	PHPExcel_Worksheet 	$pSheet			PHPExcel_Worksheet
+	 * @param	PHPExcel_Worksheet	$pSheet			PHPExcel_Worksheet
 	 * @param	string				$coordinates	Cell coordinates
 	 * @return	string
 	 * @throws	Exception
@@ -525,7 +525,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 					$filename = htmlspecialchars($filename);
 
 					$html .= "\r\n";
-					$html .= '        <img style="position: relative; left: ' . $drawing->getOffsetX() . 'px; top: ' . $drawing->getOffsetY() . 'px; width: ' . $drawing->getWidth() . 'px; height: ' . $drawing->getHeight() . 'px;" src="' . $filename . '" border="0" width="' . $drawing->getWidth() . '" height="' . $drawing->getHeight() . '" />' . "\r\n";
+					$html .= '		<img style="position: relative; left: ' . $drawing->getOffsetX() . 'px; top: ' . $drawing->getOffsetY() . 'px; width: ' . $drawing->getWidth() . 'px; height: ' . $drawing->getHeight() . 'px;" src="' . $filename . '" border="0" width="' . $drawing->getWidth() . '" height="' . $drawing->getHeight() . '" />' . "\r\n";
 				}
 			}
 		}
@@ -555,20 +555,20 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 
 		// Start styles
 		if ($generateSurroundingHTML) {
-			$html .= '    <style type="text/css">' . "\r\n";
-			$html .= '      html { ' . $this->_assembleCSS($css['html']) . ' }' . "\r\n";
+			$html .= '	<style type="text/css">' . "\r\n";
+			$html .= '	  html { ' . $this->_assembleCSS($css['html']) . ' }' . "\r\n";
 		}
 
 		// Write all other styles
 		foreach ($css as $styleName => $styleDefinition) {
 			if ($styleName != 'html') {
-				$html .= '      ' . $styleName . ' { ' . $this->_assembleCSS($styleDefinition) . ' }' . "\r\n";
+				$html .= '	  ' . $styleName . ' { ' . $this->_assembleCSS($styleDefinition) . ' }' . "\r\n";
 			}
 		}
 
 		// End styles
 		if ($generateSurroundingHTML) {
-			$html .= '    </style>' . "\r\n";
+			$html .= '	</style>' . "\r\n";
 		}
 
 		// Return
@@ -604,8 +604,8 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 		// Start styles
 		if ($generateSurroundingHTML) {
 			// html { }
-			$css['html']['font-family']      = 'Calibri, Arial, Helvetica, sans-serif';
-			$css['html']['font-size']        = '11pt';
+			$css['html']['font-family']	  = 'Calibri, Arial, Helvetica, sans-serif';
+			$css['html']['font-size']		= '11pt';
 			$css['html']['background-color'] = 'white';
 		}
 
@@ -692,7 +692,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 			}
 			$css['table.sheet' . $sheetIndex . ' tr']['height'] = $pt_height . 'pt';
 			if ($rowDimension->getVisible() === false) {
-				$css['table.sheet' . $sheetIndex . ' tr']['display']    = 'none';
+				$css['table.sheet' . $sheetIndex . ' tr']['display']	= 'none';
 				$css['table.sheet' . $sheetIndex . ' tr']['visibility'] = 'hidden';
 			}
 
@@ -728,7 +728,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Create CSS style
 	 *
-	 * @param	PHPExcel_Style 		$pStyle			PHPExcel_Style
+	 * @param	PHPExcel_Style		$pStyle			PHPExcel_Style
 	 * @return	array
 	 */
 	private function _createCSSStyle(PHPExcel_Style $pStyle) {
@@ -750,7 +750,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Create CSS style (PHPExcel_Style_Alignment)
 	 *
-	 * @param	PHPExcel_Style_Alignment 		$pStyle			PHPExcel_Style_Alignment
+	 * @param	PHPExcel_Style_Alignment		$pStyle			PHPExcel_Style_Alignment
 	 * @return	array
 	 */
 	private function _createCSSStyleAlignment(PHPExcel_Style_Alignment $pStyle) {
@@ -770,7 +770,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Create CSS style (PHPExcel_Style_Font)
 	 *
-	 * @param	PHPExcel_Style_Font 		$pStyle			PHPExcel_Style_Font
+	 * @param	PHPExcel_Style_Font		$pStyle			PHPExcel_Style_Font
 	 * @return	array
 	 */
 	private function _createCSSStyleFont(PHPExcel_Style_Font $pStyle) {
@@ -803,7 +803,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Create CSS style (PHPExcel_Style_Borders)
 	 *
-	 * @param	PHPExcel_Style_Borders 		$pStyle			PHPExcel_Style_Borders
+	 * @param	PHPExcel_Style_Borders		$pStyle			PHPExcel_Style_Borders
 	 * @return	array
 	 */
 	private function _createCSSStyleBorders(PHPExcel_Style_Borders $pStyle) {
@@ -872,7 +872,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Generate table header
 	 *
-	 * @param 	PHPExcel_Worksheet	$pSheet		The worksheet for the table we are writing
+	 * @param	PHPExcel_Worksheet	$pSheet		The worksheet for the table we are writing
 	 * @return	string
 	 * @throws	Exception
 	 */
@@ -884,15 +884,15 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 
 		if (!$this->_useInlineCss) {
 			$gridlines = $pSheet->getShowGridLines() ? ' gridlines' : '';
-			$html .= '    <table border="0" cellpadding="0" cellspacing="0" id="sheet' . $sheetIndex . '" class="sheet' . $sheetIndex . $gridlines . '">' . "\r\n";
+			$html .= '	<table border="0" cellpadding="0" cellspacing="0" id="sheet' . $sheetIndex . '" class="sheet' . $sheetIndex . $gridlines . '">' . "\r\n";
 		} else {
 			$style = isset($this->_cssStyles['table']) ?
 				$this->_assembleCSS($this->_cssStyles['table']) : '';
 
 			if ($this->_isPdf && $pSheet->getShowGridLines()) {
-				$html .= '    <table border="1" cellpadding="0" id="sheet' . $sheetIndex . '" cellspacing="0" style="' . $style . '">' . "\r\n";
+				$html .= '	<table border="1" cellpadding="0" id="sheet' . $sheetIndex . '" cellspacing="0" style="' . $style . '">' . "\r\n";
 			} else {
-				$html .= '    <table border="0" cellpadding="0" id="sheet' . $sheetIndex . '" cellspacing="0" style="' . $style . '">' . "\r\n";
+				$html .= '	<table border="0" cellpadding="0" id="sheet' . $sheetIndex . '" cellspacing="0" style="' . $style . '">' . "\r\n";
 			}
 		}
 
@@ -900,11 +900,11 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 		$highestColumnIndex = PHPExcel_Cell::columnIndexFromString($pSheet->getHighestColumn()) - 1;
 		for ($i = 0; $i <= $highestColumnIndex; ++$i) {
 			if (!$this->_useInlineCss) {
-				$html .= '        <col class="col' . $i . '">' . "\r\n";
+				$html .= '		<col class="col' . $i . '">' . "\r\n";
 			} else {
 				$style = isset($this->_cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) ?
 					$this->_assembleCSS($this->_cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) : '';
-				$html .= '        <col style="' . $style . '">' . "\r\n";
+				$html .= '		<col style="' . $style . '">' . "\r\n";
 			}
 		}
 
@@ -920,7 +920,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	private function _generateTableFooter() {
 		// Construct HTML
 		$html = '';
-		$html .= '    </table>' . "\r\n";
+		$html .= '	</table>' . "\r\n";
 
 		// Return
 		return $html;
@@ -929,7 +929,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	/**
 	 * Generate row
 	 *
-	 * @param	PHPExcel_Worksheet 	$pSheet			PHPExcel_Worksheet
+	 * @param	PHPExcel_Worksheet	$pSheet			PHPExcel_Worksheet
 	 * @param	array				$pValues		Array containing cells in a row
 	 * @param	int					$pRow			Row number (0-based)
 	 * @return	string
@@ -962,12 +962,12 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 
 			// Write row start
 			if (!$this->_useInlineCss) {
-				$html .= '          <tr class="row' . $pRow . '">' . "\r\n";
+				$html .= '		  <tr class="row' . $pRow . '">' . "\r\n";
 			} else {
 				$style = isset($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow])
 					? $this->_assembleCSS($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]) : '';
 
-				$html .= '          <tr style="' . $style . '">' . "\r\n";
+				$html .= '		  <tr style="' . $style . '">' . "\r\n";
 			}
 
 			// Write cells
@@ -1088,7 +1088,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 				// Write
 				if ($writeCell) {
 					// Column start
-					$html .= '            <td';
+					$html .= '			<td';
 						if (!$this->_useInlineCss) {
 							$html .= ' class="' . $cssClass . '"';
 						} else {
@@ -1136,7 +1136,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 			}
 
 			// Write row end
-			$html .= '          </tr>' . "\r\n";
+			$html .= '		  </tr>' . "\r\n";
 
 			// Return
 			return $html;
@@ -1162,65 +1162,65 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 		return $string;
 	}
 
-    /**
-     * Get Pre-Calculate Formulas
-     *
-     * @return boolean
-     */
-    public function getPreCalculateFormulas() {
-    	return $this->_preCalculateFormulas;
-    }
+	/**
+	 * Get Pre-Calculate Formulas
+	 *
+	 * @return boolean
+	 */
+	public function getPreCalculateFormulas() {
+		return $this->_preCalculateFormulas;
+	}
 
-    /**
-     * Set Pre-Calculate Formulas
-     *
-     * @param boolean $pValue	Pre-Calculate Formulas?
-     * @return PHPExcel_Writer_HTML
-     */
-    public function setPreCalculateFormulas($pValue = true) {
-    	$this->_preCalculateFormulas = $pValue;
-    	return $this;
-    }
+	/**
+	 * Set Pre-Calculate Formulas
+	 *
+	 * @param boolean $pValue	Pre-Calculate Formulas?
+	 * @return PHPExcel_Writer_HTML
+	 */
+	public function setPreCalculateFormulas($pValue = true) {
+		$this->_preCalculateFormulas = $pValue;
+		return $this;
+	}
 
-    /**
-     * Get images root
-     *
-     * @return string
-     */
-    public function getImagesRoot() {
-    	return $this->_imagesRoot;
-    }
+	/**
+	 * Get images root
+	 *
+	 * @return string
+	 */
+	public function getImagesRoot() {
+		return $this->_imagesRoot;
+	}
 
-    /**
-     * Set images root
-     *
-     * @param string $pValue
-     * @return PHPExcel_Writer_HTML
-     */
-    public function setImagesRoot($pValue = '.') {
-    	$this->_imagesRoot = $pValue;
-    	return $this;
-    }
+	/**
+	 * Set images root
+	 *
+	 * @param string $pValue
+	 * @return PHPExcel_Writer_HTML
+	 */
+	public function setImagesRoot($pValue = '.') {
+		$this->_imagesRoot = $pValue;
+		return $this;
+	}
 
-    /**
-     * Get use inline CSS?
-     *
-     * @return boolean
-     */
-    public function getUseInlineCss() {
-    	return $this->_useInlineCss;
-    }
+	/**
+	 * Get use inline CSS?
+	 *
+	 * @return boolean
+	 */
+	public function getUseInlineCss() {
+		return $this->_useInlineCss;
+	}
 
-    /**
-     * Set use inline CSS?
-     *
-     * @param boolean $pValue
-     * @return PHPExcel_Writer_HTML
-     */
-    public function setUseInlineCss($pValue = false) {
-    	$this->_useInlineCss = $pValue;
-    	return $this;
-    }
+	/**
+	 * Set use inline CSS?
+	 *
+	 * @param boolean $pValue
+	 * @return PHPExcel_Writer_HTML
+	 */
+	public function setUseInlineCss($pValue = false) {
+		$this->_useInlineCss = $pValue;
+		return $this;
+	}
 
 	/**
 	 * Converts a string so that spaces occuring at beginning of each new line are replaced by &nbsp;