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Файл: protected/extensions/PHPExcel/Classes/PHPExcel/Writer/HTML.php
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<?php

/**
 * PHPExcel_Writer_HTML
 *
 * Copyright (c) 2006 - 2015 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_HTML
 * @copyright  Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 * @version    ##VERSION##, ##DATE##
 */
class PHPExcel_Writer_HTML extends PHPExcel_Writer_Abstract implements PHPExcel_Writer_IWriter
{
    
/**
     * PHPExcel object
     *
     * @var PHPExcel
     */
    
protected $phpExcel;

    
/**
     * Sheet index to write
     *
     * @var int
     */
    
private $sheetIndex 0;

    
/**
     * Images root
     *
     * @var string
     */
    
private $imagesRoot '.';

    
/**
     * embed images, or link to images
     *
     * @var boolean
     */
    
private $embedImages false;

    
/**
     * Use inline CSS?
     *
     * @var boolean
     */
    
private $useInlineCss false;

    
/**
     * Array of CSS styles
     *
     * @var array
     */
    
private $cssStyles;

    
/**
     * Array of column widths in points
     *
     * @var array
     */
    
private $columnWidths;

    
/**
     * Default font
     *
     * @var PHPExcel_Style_Font
     */
    
private $defaultFont;

    
/**
     * Flag whether spans have been calculated
     *
     * @var boolean
     */
    
private $spansAreCalculated false;

    
/**
     * Excel cells that should not be written as HTML cells
     *
     * @var array
     */
    
private $isSpannedCell = array();

    
/**
     * Excel cells that are upper-left corner in a cell merge
     *
     * @var array
     */
    
private $isBaseCell = array();

    
/**
     * Excel rows that should not be written as HTML rows
     *
     * @var array
     */
    
private $isSpannedRow = array();

    
/**
     * Is the current writer creating PDF?
     *
     * @var boolean
     */
    
protected $isPdf false;

    
/**
     * Generate the Navigation block
     *
     * @var boolean
     */
    
private $generateSheetNavigationBlock true;

    
/**
     * Create a new PHPExcel_Writer_HTML
     *
     * @param    PHPExcel    $phpExcel    PHPExcel object
     */
    
public function __construct(PHPExcel $phpExcel)
    {
        
$this->phpExcel $phpExcel;
        
$this->defaultFont $this->phpExcel->getDefaultStyle()->getFont();
    }

    
/**
     * Save PHPExcel to file
     *
     * @param    string        $pFilename
     * @throws    PHPExcel_Writer_Exception
     */
    
public function save($pFilename null)
    {
        
// garbage collect
        
$this->phpExcel->garbageCollect();

        
$saveDebugLog PHPExcel_Calculation::getInstance($this->phpExcel)->getDebugLog()->getWriteDebugLog();
        
PHPExcel_Calculation::getInstance($this->phpExcel)->getDebugLog()->setWriteDebugLog(false);
        
$saveArrayReturnType PHPExcel_Calculation::getArrayReturnType();
        
PHPExcel_Calculation::setArrayReturnType(PHPExcel_Calculation::RETURN_ARRAY_AS_VALUE);

        
// Build CSS
        
$this->buildCSS(!$this->useInlineCss);

        
// Open file
        
$fileHandle fopen($pFilename'wb+');
        if (
$fileHandle === false) {
            throw new 
PHPExcel_Writer_Exception("Could not open file $pFilename for writing.");
        }

        
// Write headers
        
fwrite($fileHandle$this->generateHTMLHeader(!$this->useInlineCss));

        
// Write navigation (tabs)
        
if ((!$this->isPdf) && ($this->generateSheetNavigationBlock)) {
            
fwrite($fileHandle$this->generateNavigation());
        }

        
// Write data
        
fwrite($fileHandle$this->generateSheetData());

        
// Write footer
        
fwrite($fileHandle$this->generateHTMLFooter());

        
// Close file
        
fclose($fileHandle);

        
PHPExcel_Calculation::setArrayReturnType($saveArrayReturnType);
        
PHPExcel_Calculation::getInstance($this->phpExcel)->getDebugLog()->setWriteDebugLog($saveDebugLog);
    }

    
/**
     * Map VAlign
     *
     * @param    string        $vAlign        Vertical alignment
     * @return string
     */
    
private function mapVAlign($vAlign)
    {
        switch (
$vAlign) {
            case 
PHPExcel_Style_Alignment::VERTICAL_BOTTOM:
                return 
'bottom';
            case 
PHPExcel_Style_Alignment::VERTICAL_TOP:
                return 
'top';
            case 
PHPExcel_Style_Alignment::VERTICAL_CENTER:
            case 
PHPExcel_Style_Alignment::VERTICAL_JUSTIFY:
                return 
'middle';
            default:
                return 
'baseline';
        }
    }

    
/**
     * Map HAlign
     *
     * @param    string        $hAlign        Horizontal alignment
     * @return string|false
     */
    
private function mapHAlign($hAlign)
    {
        switch (
$hAlign) {
            case 
PHPExcel_Style_Alignment::HORIZONTAL_GENERAL:
                return 
false;
            case 
PHPExcel_Style_Alignment::HORIZONTAL_LEFT:
                return 
'left';
            case 
PHPExcel_Style_Alignment::HORIZONTAL_RIGHT:
                return 
'right';
            case 
PHPExcel_Style_Alignment::HORIZONTAL_CENTER:
            case 
PHPExcel_Style_Alignment::HORIZONTAL_CENTER_CONTINUOUS:
                return 
'center';
            case 
PHPExcel_Style_Alignment::HORIZONTAL_JUSTIFY:
                return 
'justify';
            default:
                return 
false;
        }
    }

    
/**
     * Map border style
     *
     * @param    int        $borderStyle        Sheet index
     * @return    string
     */
    
private function mapBorderStyle($borderStyle)
    {
        switch (
$borderStyle) {
            case 
PHPExcel_Style_Border::BORDER_NONE:
                return 
'none';
            case 
PHPExcel_Style_Border::BORDER_DASHDOT:
                return 
'1px dashed';
            case 
PHPExcel_Style_Border::BORDER_DASHDOTDOT:
                return 
'1px dotted';
            case 
PHPExcel_Style_Border::BORDER_DASHED:
                return 
'1px dashed';
            case 
PHPExcel_Style_Border::BORDER_DOTTED:
                return 
'1px dotted';
            case 
PHPExcel_Style_Border::BORDER_DOUBLE:
                return 
'3px double';
            case 
PHPExcel_Style_Border::BORDER_HAIR:
                return 
'1px solid';
            case 
PHPExcel_Style_Border::BORDER_MEDIUM:
                return 
'2px solid';
            case 
PHPExcel_Style_Border::BORDER_MEDIUMDASHDOT:
                return 
'2px dashed';
            case 
PHPExcel_Style_Border::BORDER_MEDIUMDASHDOTDOT:
                return 
'2px dotted';
            case 
PHPExcel_Style_Border::BORDER_MEDIUMDASHED:
                return 
'2px dashed';
            case 
PHPExcel_Style_Border::BORDER_SLANTDASHDOT:
                return 
'2px dashed';
            case 
PHPExcel_Style_Border::BORDER_THICK:
                return 
'3px solid';
            case 
PHPExcel_Style_Border::BORDER_THIN:
                return 
'1px solid';
            default:
                
// map others to thin
                
return '1px solid';
        }
    }

    
/**
     * Get sheet index
     *
     * @return int
     */
    
public function getSheetIndex()
    {
        return 
$this->sheetIndex;
    }

    
/**
     * Set sheet index
     *
     * @param    int        $pValue        Sheet index
     * @return PHPExcel_Writer_HTML
     */
    
public function setSheetIndex($pValue 0)
    {
        
$this->sheetIndex $pValue;
        return 
$this;
    }

    
/**
     * Get sheet index
     *
     * @return boolean
     */
    
public function getGenerateSheetNavigationBlock()
    {
        return 
$this->generateSheetNavigationBlock;
    }

    
/**
     * Set sheet index
     *
     * @param    boolean        $pValue        Flag indicating whether the sheet navigation block should be generated or not
     * @return PHPExcel_Writer_HTML
     */
    
public function setGenerateSheetNavigationBlock($pValue true)
    {
        
$this->generateSheetNavigationBlock = (bool) $pValue;
        return 
$this;
    }

    
/**
     * Write all sheets (resets sheetIndex to NULL)
     */
    
public function writeAllSheets()
    {
        
$this->sheetIndex null;
        return 
$this;
    }

    
/**
     * Generate HTML header
     *
     * @param    boolean        $pIncludeStyles        Include styles?
     * @return    string
     * @throws PHPExcel_Writer_Exception
     */
    
public function generateHTMLHeader($pIncludeStyles false)
    {
        
// PHPExcel object known?
        
if (is_null($this->phpExcel)) {
            throw new 
PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
        }

        
// Construct HTML
        
$properties $this->phpExcel->getProperties();
        
$html '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">' PHP_EOL;
        
$html .= '<!-- Generated by PHPExcel - http://www.phpexcel.net -->' PHP_EOL;
        
$html .= '<html>' PHP_EOL;
        
$html .= '  <head>' PHP_EOL;
        
$html .= '      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">' PHP_EOL;
        if (
$properties->getTitle() > '') {
            
$html .= '      <title>' htmlspecialchars($properties->getTitle()) . '</title>' PHP_EOL;
        }
        if (
$properties->getCreator() > '') {
            
$html .= '      <meta name="author" content="' htmlspecialchars($properties->getCreator()) . '" />' PHP_EOL;
        }
        if (
$properties->getTitle() > '') {
            
$html .= '      <meta name="title" content="' htmlspecialchars($properties->getTitle()) . '" />' PHP_EOL;
        }
        if (
$properties->getDescription() > '') {
            
$html .= '      <meta name="description" content="' htmlspecialchars($properties->getDescription()) . '" />' PHP_EOL;
        }
        if (
$properties->getSubject() > '') {
            
$html .= '      <meta name="subject" content="' htmlspecialchars($properties->getSubject()) . '" />' PHP_EOL;
        }
        if (
$properties->getKeywords() > '') {
            
$html .= '      <meta name="keywords" content="' htmlspecialchars($properties->getKeywords()) . '" />' PHP_EOL;
        }
        if (
$properties->getCategory() > '') {
            
$html .= '      <meta name="category" content="' htmlspecialchars($properties->getCategory()) . '" />' PHP_EOL;
        }
        if (
$properties->getCompany() > '') {
            
$html .= '      <meta name="company" content="' htmlspecialchars($properties->getCompany()) . '" />' PHP_EOL;
        }
        if (
$properties->getManager() > '') {
            
$html .= '      <meta name="manager" content="' htmlspecialchars($properties->getManager()) . '" />' PHP_EOL;
        }

        if (
$pIncludeStyles) {
            
$html .= $this->generateStyles(true);
        }

        
$html .= '  </head>' PHP_EOL;
        
$html .= '' PHP_EOL;
        
$html .= '  <body>' PHP_EOL;

        return 
$html;
    }

    
/**
     * Generate sheet data
     *
     * @return    string
     * @throws PHPExcel_Writer_Exception
     */
    
public function generateSheetData()
    {
        
// PHPExcel object known?
        
if (is_null($this->phpExcel)) {
            throw new 
PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
        }

        
// Ensure that Spans have been calculated?
        
if ($this->sheetIndex !== null || !$this->spansAreCalculated) {
            
$this->calculateSpans();
        }

        
// Fetch sheets
        
$sheets = array();
        if (
is_null($this->sheetIndex)) {
            
$sheets $this->phpExcel->getAllSheets();
        } else {
            
$sheets[] = $this->phpExcel->getSheet($this->sheetIndex);
        }

        
// Construct HTML
        
$html '';

        
// Loop all sheets
        
$sheetId 0;
        foreach (
$sheets as $sheet) {
            
// 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;

            
// row min,max
            
$rowMin $dimension[0][1];
            
$rowMax $dimension[1][1];

            
// calculate start of <tbody>, <thead>
            
$tbodyStart $rowMin;
            
$theadStart $theadEnd   0// default: no <thead>    no </thead>
            
if ($sheet->getPageSetup()->isRowsToRepeatAtTopSet()) {
                
$rowsToRepeatAtTop $sheet->getPageSetup()->getRowsToRepeatAtTop();

                
// we can only support repeating rows that start at top row
                
if ($rowsToRepeatAtTop[0] == 1) {
                    
$theadStart $rowsToRepeatAtTop[0];
                    
$theadEnd   $rowsToRepeatAtTop[1];
                    
$tbodyStart $rowsToRepeatAtTop[1] + 1;
                }
            }

            
// Loop through cells
            
$row $rowMin-1;
            while (
$row++ < $rowMax) {
                
// <thead> ?
                
if ($row == $theadStart) {
                    
$html .= '        <thead>' PHP_EOL;
                    
$cellType 'th';
                }

                
// <tbody> ?
                
if ($row == $tbodyStart) {
                    
$html .= '        <tbody>' PHP_EOL;
                    
$cellType 'td';
                }

                
// Write row if there are HTML table cells in it
                
if (!isset($this->isSpannedRow[$sheet->getParent()->getIndex($sheet)][$row])) {
                    
// Start a new rowData
                    
$rowData = array();
                    
// Loop through columns
                    
$column $dimension[0][0] - 1;
                    while (
$column++ < $dimension[1][0]) {
                        
// Cell exists?
                        
if ($sheet->cellExistsByColumnAndRow($column$row)) {
                            
$rowData[$column] = PHPExcel_Cell::stringFromColumnIndex($column) . $row;
                        } else {
                            
$rowData[$column] = '';
                        }
                    }
                    
$html .= $this->generateRow($sheet$rowData$row 1$cellType);
                }

                
// </thead> ?
                
if ($row == $theadEnd) {
                    
$html .= '        </thead>' PHP_EOL;
                }
            }
            
$html .= $this->extendRowsForChartsAndImages($sheet$row);

            
// Close table body.
            
$html .= '        </tbody>' PHP_EOL;

            
// Write table footer
            
$html .= $this->generateTableFooter();

            
// Writing PDF?
            
if ($this->isPdf) {
                if (
is_null($this->sheetIndex) && $sheetId $this->phpExcel->getSheetCount()) {
                    
$html .= '<div style="page-break-before:always" />';
                }
            }

            
// Next sheet
            
++$sheetId;
        }

        return 
$html;
    }

    
/**
     * Generate sheet tabs
     *
     * @return    string
     * @throws PHPExcel_Writer_Exception
     */
    
public function generateNavigation()
    {
        
// PHPExcel object known?
        
if (is_null($this->phpExcel)) {
            throw new 
PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
        }

        
// Fetch sheets
        
$sheets = array();
        if (
is_null($this->sheetIndex)) {
            
$sheets $this->phpExcel->getAllSheets();
        } else {
            
$sheets[] = $this->phpExcel->getSheet($this->sheetIndex);
        }

        
// Construct HTML
        
$html '';

        
// Only if there are more than 1 sheets
        
if (count($sheets) > 1) {
            
// Loop all sheets
            
$sheetId 0;

            
$html .= '<ul class="navigation">' PHP_EOL;

            foreach (
$sheets as $sheet) {
                
$html .= '  <li class="sheet' $sheetId '"><a href="#sheet' $sheetId '">' $sheet->getTitle() . '</a></li>' PHP_EOL;
                ++
$sheetId;
            }

            
$html .= '</ul>' PHP_EOL;
        }

        return 
$html;
    }

    private function 
extendRowsForChartsAndImages(PHPExcel_Worksheet $pSheet$row)
    {
        
$rowMax $row;
        
$colMax 'A';
        if (
$this->includeCharts) {
            foreach (
$pSheet->getChartCollection() as $chart) {
                if (
$chart instanceof PHPExcel_Chart) {
                    
$chartCoordinates $chart->getTopLeftPosition();
                    
$chartTL PHPExcel_Cell::coordinateFromString($chartCoordinates['cell']);
                    
$chartCol PHPExcel_Cell::columnIndexFromString($chartTL[0]);
                    if (
$chartTL[1] > $rowMax) {
                        
$rowMax $chartTL[1];
                        if (
$chartCol PHPExcel_Cell::columnIndexFromString($colMax)) {
                            
$colMax $chartTL[0];
                        }
                    }
                }
            }
        }

        foreach (
$pSheet->getDrawingCollection() as $drawing) {
            if (
$drawing instanceof PHPExcel_Worksheet_Drawing) {
                
$imageTL PHPExcel_Cell::coordinateFromString($drawing->getCoordinates());
                
$imageCol PHPExcel_Cell::columnIndexFromString($imageTL[0]);
                if (
$imageTL[1] > $rowMax) {
                    
$rowMax $imageTL[1];
                    if (
$imageCol PHPExcel_Cell::columnIndexFromString($colMax)) {
                        
$colMax $imageTL[0];
                    }
                }
            }
        }

        
$html '';
        
$colMax++;
        while (
$row <= $rowMax) {
            
$html .= '<tr>';
            for (
$col 'A'$col != $colMax; ++$col) {
                
$html .= '<td>';
                
$html .= $this->writeImageInCell($pSheet$col.$row);
                if (
$this->includeCharts) {
                    
$html .= $this->writeChartInCell($pSheet$col.$row);
                }
                
$html .= '</td>';
            }
            ++
$row;
            
$html .= '</tr>';
        }
        return 
$html;
    }


    
/**
     * Generate image tag in cell
     *
     * @param    PHPExcel_Worksheet    $pSheet            PHPExcel_Worksheet
     * @param    string                $coordinates    Cell coordinates
     * @return    string
     * @throws    PHPExcel_Writer_Exception
     */
    
private function writeImageInCell(PHPExcel_Worksheet $pSheet$coordinates)
    {
        
// Construct HTML
        
$html '';

        
// Write images
        
foreach ($pSheet->getDrawingCollection() as $drawing) {
            if (
$drawing instanceof PHPExcel_Worksheet_Drawing) {
                if (
$drawing->getCoordinates() == $coordinates) {
                    
$filename $drawing->getPath();

                    
// Strip off eventual '.'
                    
if (substr($filename01) == '.') {
                        
$filename substr($filename1);
                    }

                    
// Prepend images root
                    
$filename $this->getImagesRoot() . $filename;

                    
// Strip off eventual '.'
                    
if (substr($filename01) == '.' && substr($filename02) != './') {
                        
$filename substr($filename1);
                    }

                    
// Convert UTF8 data to PCDATA
                    
$filename htmlspecialchars($filename);

                    
$html .= PHP_EOL;
                    if ((!
$this->embedImages) || ($this->isPdf)) {
                        
$imageData $filename;
                    } else {
                        
$imageDetails getimagesize($filename);
                        if (
$fp fopen($filename"rb"0)) {
                            
$picture fread($fpfilesize($filename));
                            
fclose($fp);
                            
// base64 encode the binary data, then break it
                            // into chunks according to RFC 2045 semantics
                            
$base64 chunk_split(base64_encode($picture));
                            
$imageData 'data:'.$imageDetails['mime'].';base64,' $base64;
                        } else {
                            
$imageData $filename;
                        }
                    }

                    
$html .= '<div style="position: relative;">';
                    
$html .= '<img style="position: absolute; z-index: 1; left: ' .
                        
$drawing->getOffsetX() . 'px; top: ' $drawing->getOffsetY() . 'px; width: ' .
                        
$drawing->getWidth() . 'px; height: ' $drawing->getHeight() . 'px;" src="' .
                        
$imageData '" border="0" />';
                    
$html .= '</div>';
                }
            } elseif (
$drawing instanceof PHPExcel_Worksheet_MemoryDrawing) {
                if (
$drawing->getCoordinates() != $coordinates) {
                    continue;
                }
                
ob_start();                                //  Let's start output buffering.
                
imagepng($drawing->getImageResource());    //  This will normally output the image, but because of ob_start(), it won't.
                
$contents ob_get_contents();             //  Instead, output above is saved to $contents
                
ob_end_clean();                            //  End the output buffer.

                
$dataUri "data:image/jpeg;base64," base64_encode($contents);

                
//  Because of the nature of tables, width is more important than height.
                //  max-width: 100% ensures that image doesnt overflow containing cell
                //  width: X sets width of supplied image.
                //  As a result, images bigger than cell will be contained and images smaller will not get stretched
                
$html .= '<img src="'.$dataUri.'" style="max-width:100%;width:'.$drawing->getWidth().'px;" />';
            }
        }

        return 
$html;
    }

    
/**
     * Generate chart tag in cell
     *
     * @param    PHPExcel_Worksheet    $pSheet            PHPExcel_Worksheet
     * @param    string                $coordinates    Cell coordinates
     * @return    string
     * @throws    PHPExcel_Writer_Exception
     */
    
private function writeChartInCell(PHPExcel_Worksheet $pSheet$coordinates)
    {
        
// Construct HTML
        
$html '';

        
// Write charts
        
foreach ($pSheet->getChartCollection() as $chart) {
            if (
$chart instanceof PHPExcel_Chart) {
                
$chartCoordinates $chart->getTopLeftPosition();
                if (
$chartCoordinates['cell'] == $coordinates) {
                    
$chartFileName PHPExcel_Shared_File::sys_get_temp_dir().'/'.uniqid().'.png';
                    if (!
$chart->render($chartFileName)) {
                        return;
                    }

                    
$html .= PHP_EOL;
                    
$imageDetails getimagesize($chartFileName);
                    if (
$fp fopen($chartFileName"rb"0)) {
                        
$picture fread($fpfilesize($chartFileName));
                        
fclose($fp);
                        
// base64 encode the binary data, then break it
                        // into chunks according to RFC 2045 semantics
                        
$base64 chunk_split(base64_encode($picture));
                        
$imageData 'data:'.$imageDetails['mime'].';base64,' $base64;

                        
$html .= '<div style="position: relative;">';
                        
$html .= '<img style="position: absolute; z-index: 1; left: ' $chartCoordinates['xOffset'] . 'px; top: ' $chartCoordinates['yOffset'] . 'px; width: ' $imageDetails[0] . 'px; height: ' $imageDetails[1] . 'px;" src="' $imageData '" border="0" />' PHP_EOL;
                        
$html .= '</div>';

                        
unlink($chartFileName);
                    }
                }
            }
        }

        
// Return
        
return $html;
    }

    
/**
     * Generate CSS styles
     *
     * @param    boolean    $generateSurroundingHTML    Generate surrounding HTML tags? (&lt;style&gt; and &lt;/style&gt;)
     * @return    string
     * @throws    PHPExcel_Writer_Exception
     */
    
public function generateStyles($generateSurroundingHTML true)
    {
        
// PHPExcel object known?
        
if (is_null($this->phpExcel)) {
            throw new 
PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
        }

        
// Build CSS
        
$css $this->buildCSS($generateSurroundingHTML);

        
// Construct HTML
        
$html '';

        
// Start styles
        
if ($generateSurroundingHTML) {
            
$html .= '    <style type="text/css">' PHP_EOL;
            
$html .= '      html { ' $this->assembleCSS($css['html']) . ' }' PHP_EOL;
        }

        
// Write all other styles
        
foreach ($css as $styleName => $styleDefinition) {
            if (
$styleName != 'html') {
                
$html .= '      ' $styleName ' { ' $this->assembleCSS($styleDefinition) . ' }' PHP_EOL;
            }
        }

        
// End styles
        
if ($generateSurroundingHTML) {
            
$html .= '    </style>' PHP_EOL;
        }

        
// Return
        
return $html;
    }

    
/**
     * Build CSS styles
     *
     * @param    boolean    $generateSurroundingHTML    Generate surrounding HTML style? (html { })
     * @return    array
     * @throws    PHPExcel_Writer_Exception
     */
    
public function buildCSS($generateSurroundingHTML true)
    {
        
// PHPExcel object known?
        
if (is_null($this->phpExcel)) {
            throw new 
PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
        }

        
// Cached?
        
if (!is_null($this->cssStyles)) {
            return 
$this->cssStyles;
        }

        
// Ensure that spans have been calculated
        
if (!$this->spansAreCalculated) {
            
$this->calculateSpans();
        }

        
// Construct CSS
        
$css = array();

        
// Start styles
        
if ($generateSurroundingHTML) {
            
// html { }
            
$css['html']['font-family']      = 'Calibri, Arial, Helvetica, sans-serif';
            
$css['html']['font-size']        = '11pt';
            
$css['html']['background-color'] = 'white';
        }


        
// table { }
        
$css['table']['border-collapse']  = 'collapse';
        if (!
$this->isPdf) {
            
$css['table']['page-break-after'] = 'always';
        }

        
// .gridlines td { }
        
$css['.gridlines td']['border'] = '1px dotted black';
        
$css['.gridlines th']['border'] = '1px dotted black';

        
// .b {}
        
$css['.b']['text-align'] = 'center'// BOOL

        // .e {}
        
$css['.e']['text-align'] = 'center'// ERROR

        // .f {}
        
$css['.f']['text-align'] = 'right'// FORMULA

        // .inlineStr {}
        
$css['.inlineStr']['text-align'] = 'left'// INLINE

        // .n {}
        
$css['.n']['text-align'] = 'right'// NUMERIC

        // .s {}
        
$css['.s']['text-align'] = 'left'// STRING

        // Calculate cell style hashes
        
foreach ($this->phpExcel->getCellXfCollection() as $index => $style) {
            
$css['td.style' $index] = $this->createCSSStyle($style);
            
$css['th.style' $index] = $this->createCSSStyle($style);
        }

        
// Fetch sheets
        
$sheets = array();
        if (
is_null($this->sheetIndex)) {
            
$sheets $this->phpExcel->getAllSheets();
        } else {
            
$sheets[] = $this->phpExcel->getSheet($this->sheetIndex);
        }

        
// Build styles per sheet
        
foreach ($sheets as $sheet) {
            
// Calculate hash code
            
$sheetIndex $sheet->getParent()->getIndex($sheet);

            
// Build styles
            // Calculate column widths
            
$sheet->calculateColumnWidths();

            
// col elements, initialize
            
$highestColumnIndex PHPExcel_Cell::columnIndexFromString($sheet->getHighestColumn()) - 1;
            
$column = -1;
            while (
$column++ < $highestColumnIndex) {
                
$this->columnWidths[$sheetIndex][$column] = 42// approximation
                
$css['table.sheet' $sheetIndex ' col.col' $column]['width'] = '42pt';
            }

            
// col elements, loop through columnDimensions and set width
            
foreach ($sheet->getColumnDimensions() as $columnDimension) {
                if ((
$width PHPExcel_Shared_Drawing::cellDimensionToPixels($columnDimension->getWidth(), $this->defaultFont)) >= 0) {
                    
$width PHPExcel_Shared_Drawing::pixelsToPoints($width);
                    
$column PHPExcel_Cell::columnIndexFromString($columnDimension->getColumnIndex()) - 1;
                    
$this->columnWidths[$sheetIndex][$column] = $width;
                    
$css['table.sheet' $sheetIndex ' col.col' $column]['width'] = $width 'pt';

                    if (
$columnDimension->getVisible() === false) {
                        
$css['table.sheet' $sheetIndex ' col.col' $column]['visibility'] = 'collapse';
                        
$css['table.sheet' $sheetIndex ' col.col' $column]['*display'] = 'none'// target IE6+7
                    
}
                }
            }

            
// Default row height
            
$rowDimension $sheet->getDefaultRowDimension();

            
// table.sheetN tr { }
            
$css['table.sheet' $sheetIndex ' tr'] = array();

            if (
$rowDimension->getRowHeight() == -1) {
                
$pt_height PHPExcel_Shared_Font::getDefaultRowHeightByFont($this->phpExcel->getDefaultStyle()->getFont());
            } else {
                
$pt_height $rowDimension->getRowHeight();
            }
            
$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']['visibility'] = 'hidden';
            }

            
// Calculate row heights
            
foreach ($sheet->getRowDimensions() as $rowDimension) {
                
$row $rowDimension->getRowIndex() - 1;

                
// table.sheetN tr.rowYYYYYY { }
                
$css['table.sheet' $sheetIndex ' tr.row' $row] = array();

                if (
$rowDimension->getRowHeight() == -1) {
                    
$pt_height PHPExcel_Shared_Font::getDefaultRowHeightByFont($this->phpExcel->getDefaultStyle()->getFont());
                } else {
                    
$pt_height $rowDimension->getRowHeight();
                }
                
$css['table.sheet' $sheetIndex ' tr.row' $row]['height'] = $pt_height 'pt';
                if (
$rowDimension->getVisible() === false) {
                    
$css['table.sheet' $sheetIndex ' tr.row' $row]['display'] = 'none';
                    
$css['table.sheet' $sheetIndex ' tr.row' $row]['visibility'] = 'hidden';
                }
            }
        }

        
// Cache
        
if (is_null($this->cssStyles)) {
            
$this->cssStyles $css;
        }

        
// Return
        
return $css;
    }

    
/**
     * Create CSS style
     *
     * @param    PHPExcel_Style        $pStyle            PHPExcel_Style
     * @return    array
     */
    
private function createCSSStyle(PHPExcel_Style $pStyle)
    {
        
// Construct CSS
        
$css '';

        
// Create CSS
        
$css array_merge(
            
$this->createCSSStyleAlignment($pStyle->getAlignment()),
            
$this->createCSSStyleBorders($pStyle->getBorders()),
            
$this->createCSSStyleFont($pStyle->getFont()),
            
$this->createCSSStyleFill($pStyle->getFill())
        );

        
// Return
        
return $css;
    }

    
/**
     * Create CSS style (PHPExcel_Style_Alignment)
     *
     * @param    PHPExcel_Style_Alignment        $pStyle            PHPExcel_Style_Alignment
     * @return    array
     */
    
private function createCSSStyleAlignment(PHPExcel_Style_Alignment $pStyle)
    {
        
// Construct CSS
        
$css = array();

        
// Create CSS
        
$css['vertical-align'] = $this->mapVAlign($pStyle->getVertical());
        if (
$textAlign $this->mapHAlign($pStyle->getHorizontal())) {
            
$css['text-align'] = $textAlign;
            if (
in_array($textAlign, array('left''right'))) {
                
$css['padding-'.$textAlign] = (string)((int)$pStyle->getIndent() * 9).'px';
            }
        }

        return 
$css;
    }

    
/**
     * Create CSS style (PHPExcel_Style_Font)
     *
     * @param    PHPExcel_Style_Font        $pStyle            PHPExcel_Style_Font
     * @return    array
     */
    
private function createCSSStyleFont(PHPExcel_Style_Font $pStyle)
    {
        
// Construct CSS
        
$css = array();

        
// Create CSS
        
if ($pStyle->getBold()) {
            
$css['font-weight'] = 'bold';
        }
        if (
$pStyle->getUnderline() != PHPExcel_Style_Font::UNDERLINE_NONE && $pStyle->getStrikethrough()) {
            
$css['text-decoration'] = 'underline line-through';
        } elseif (
$pStyle->getUnderline() != PHPExcel_Style_Font::UNDERLINE_NONE) {
            
$css['text-decoration'] = 'underline';
        } elseif (
$pStyle->getStrikethrough()) {
            
$css['text-decoration'] = 'line-through';
        }
        if (
$pStyle->getItalic()) {
            
$css['font-style'] = 'italic';
        }

        
$css['color']       = '#' $pStyle->getColor()->getRGB();
        
$css['font-family'] = ''' . $pStyle->getName() . ''';
        
$css['font-size']   = $pStyle->getSize() . 'pt';

        return 
$css;
    }

    
/**
     * Create CSS style (PHPExcel_Style_Borders)
     *
     * @param    PHPExcel_Style_Borders        $pStyle            PHPExcel_Style_Borders
     * @return    array
     */
    
private function createCSSStyleBorders(PHPExcel_Style_Borders $pStyle)
    {
        
// Construct CSS
        
$css = array();

        
// Create CSS
        
$css['border-bottom'] = $this->createCSSStyleBorder($pStyle->getBottom());
        
$css['border-top']    = $this->createCSSStyleBorder($pStyle->getTop());
        
$css['border-left']   = $this->createCSSStyleBorder($pStyle->getLeft());
        
$css['border-right']  = $this->createCSSStyleBorder($pStyle->getRight());

        return 
$css;
    }

    
/**
     * Create CSS style (PHPExcel_Style_Border)
     *
     * @param    PHPExcel_Style_Border        $pStyle            PHPExcel_Style_Border
     * @return    string
     */
    
private function createCSSStyleBorder(PHPExcel_Style_Border $pStyle)
    {
        
// Create CSS
//        $css = $this->mapBorderStyle($pStyle->getBorderStyle()) . ' #' . $pStyle->getColor()->getRGB();
        //    Create CSS - add !important to non-none border styles for merged cells
        
$borderStyle $this->mapBorderStyle($pStyle->getBorderStyle());
        
$css $borderStyle ' #' $pStyle->getColor()->getRGB() . (($borderStyle == 'none') ? '' ' !important');

        return 
$css;
    }

    
/**
     * Create CSS style (PHPExcel_Style_Fill)
     *
     * @param    PHPExcel_Style_Fill        $pStyle            PHPExcel_Style_Fill
     * @return    array
     */
    
private function createCSSStyleFill(PHPExcel_Style_Fill $pStyle)
    {
        
// Construct HTML
        
$css = array();

        
// Create CSS
        
$value $pStyle->getFillType() == PHPExcel_Style_Fill::FILL_NONE ?
            
'white' '#' $pStyle->getStartColor()->getRGB();
        
$css['background-color'] = $value;

        return 
$css;
    }

    
/**
     * Generate HTML footer
     */
    
public function generateHTMLFooter()
    {
        
// Construct HTML
        
$html '';
        
$html .= '  </body>' PHP_EOL;
        
$html .= '</html>' PHP_EOL;

        return 
$html;
    }

    
/**
     * Generate table header
     *
     * @param    PHPExcel_Worksheet    $pSheet        The worksheet for the table we are writing
     * @return    string
     * @throws    PHPExcel_Writer_Exception
     */
    
private function generateTableHeader($pSheet)
    {
        
$sheetIndex $pSheet->getParent()->getIndex($pSheet);

        
// Construct HTML
        
$html '';
        
$html .= $this->setMargins($pSheet);
            
        if (!
$this->useInlineCss) {
            
$gridlines $pSheet->getShowGridlines() ? ' gridlines' '';
            
$html .= '    <table border="0" cellpadding="0" cellspacing="0" id="sheet' $sheetIndex '" class="sheet' $sheetIndex $gridlines '">' PHP_EOL;
        } else {
            
$style = isset($this->cssStyles['table']) ?
                
$this->assembleCSS($this->cssStyles['table']) : '';

            if (
$this->isPdf && $pSheet->getShowGridlines()) {
                
$html .= '    <table border="1" cellpadding="1" id="sheet' $sheetIndex '" cellspacing="1" style="' $style '">' PHP_EOL;
            } else {
                
$html .= '    <table border="0" cellpadding="1" id="sheet' $sheetIndex '" cellspacing="0" style="' $style '">' PHP_EOL;
            }
        }

        
// Write <col> elements
        
$highestColumnIndex PHPExcel_Cell::columnIndexFromString($pSheet->getHighestColumn()) - 1;
        
$i = -1;
        while (
$i++ < $highestColumnIndex) {
            if (!
$this->isPdf) {
                if (!
$this->useInlineCss) {
                    
$html .= '        <col class="col' $i '">' PHP_EOL;
                } 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 '">' PHP_EOL;
                }
            }
        }

        return 
$html;
    }

    
/**
     * Generate table footer
     *
     * @throws    PHPExcel_Writer_Exception
     */
    
private function generateTableFooter()
    {
        
$html '    </table>' PHP_EOL;

        return 
$html;
    }

    
/**
     * Generate row
     *
     * @param    PHPExcel_Worksheet    $pSheet            PHPExcel_Worksheet
     * @param    array                $pValues        Array containing cells in a row
     * @param    int                    $pRow            Row number (0-based)
     * @return    string
     * @throws    PHPExcel_Writer_Exception
     */
    
private function generateRow(PHPExcel_Worksheet $pSheet$pValues null$pRow 0$cellType 'td')
    {
        if (
is_array($pValues)) {
            
// Construct HTML
            
$html '';

            
// Sheet index
            
$sheetIndex $pSheet->getParent()->getIndex($pSheet);

            
// DomPDF and breaks
            
if ($this->isPdf && count($pSheet->getBreaks()) > 0) {
                
$breaks $pSheet->getBreaks();

                
// check if a break is needed before this row
                
if (isset($breaks['A' $pRow])) {
                    
// close table: </table>
                    
$html .= $this->generateTableFooter();

                    
// insert page break
                    
$html .= '<div style="page-break-before:always" />';

                    
// open table again: <table> + <col> etc.
                    
$html .= $this->generateTableHeader($pSheet);
                }
            }

            
// Write row start
            
if (!$this->useInlineCss) {
                
$html .= '          <tr class="row' $pRow '">' PHP_EOL;
            } 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 '">' PHP_EOL;
            }

            
// Write cells
            
$colNum 0;
            foreach (
$pValues as $cellAddress) {
                
$cell = ($cellAddress '') ? $pSheet->getCell($cellAddress) : '';
                
$coordinate PHPExcel_Cell::stringFromColumnIndex($colNum) . ($pRow 1);
                if (!
$this->useInlineCss) {
                    
$cssClass '';
                    
$cssClass 'column' $colNum;
                } else {
                    
$cssClass = array();
                    if (
$cellType == 'th') {
                        if (isset(
$this->cssStyles['table.sheet' $sheetIndex ' th.column' $colNum])) {
                            
$this->cssStyles['table.sheet' $sheetIndex ' th.column' $colNum];
                        }
                    } else {
                        if (isset(
$this->cssStyles['table.sheet' $sheetIndex ' td.column' $colNum])) {
                            
$this->cssStyles['table.sheet' $sheetIndex ' td.column' $colNum];
                        }
                    }
                }
                
$colSpan 1;
                
$rowSpan 1;

                
// initialize
                
$cellData '&nbsp;';

                
// PHPExcel_Cell
                
if ($cell instanceof PHPExcel_Cell) {
                    
$cellData '';
                    if (
is_null($cell->getParent())) {
                        
$cell->attach($pSheet);
                    }
                    
// Value
                    
if ($cell->getValue() instanceof PHPExcel_RichText) {
                        
// Loop through rich text elements
                        
$elements $cell->getValue()->getRichTextElements();
                        foreach (
$elements as $element) {
                            
// Rich text start?
                            
if ($element instanceof PHPExcel_RichText_Run) {
                                
$cellData .= '<span style="' $this->assembleCSS($this->createCSSStyleFont($element->getFont())) . '">';

                                if (
$element->getFont()->getSuperScript()) {
                                    
$cellData .= '<sup>';
                                } elseif (
$element->getFont()->getSubScript()) {
                                    
$cellData .= '<sub>';
                                }
                            }

                            
// Convert UTF8 data to PCDATA
                            
$cellText $element->getText();
                            
$cellData .= htmlspecialchars($cellText);

                            if (
$element instanceof PHPExcel_RichText_Run) {
                                if (
$element->getFont()->getSuperScript()) {
                                    
$cellData .= '</sup>';
                                } elseif (
$element->getFont()->getSubScript()) {
                                    
$cellData .= '</sub>';
                                }

                                
$cellData .= '</span>';
                            }
                        }
                    } else {
                        if (
$this->preCalculateFormulas) {
                            
$cellData PHPExcel_Style_NumberFormat::toFormattedString(
                                
$cell->getCalculatedValue(),
                                
$pSheet->getParent()->getCellXfByIndex($cell->getXfIndex())->getNumberFormat()->getFormatCode(),
                                array(
$this'formatColor')
                            );
                        } else {
                            
$cellData PHPExcel_Style_NumberFormat::toFormattedString(
                                
$cell->getValue(),
                                
$pSheet->getParent()->getCellXfByIndex($cell->getXfIndex())->getNumberFormat()->getFormatCode(),
                                array(
$this'formatColor')
                            );
                        }
                        
$cellData htmlspecialchars($cellData);
                        if (
$pSheet->getParent()->getCellXfByIndex($cell->getXfIndex())->getFont()->getSuperScript()) {
                            
$cellData '<sup>'.$cellData.'</sup>';
                        } elseif (
$pSheet->getParent()->getCellXfByIndex($cell->getXfIndex())->getFont()->getSubScript()) {
                            
$cellData '<sub>'.$cellData.'</sub>';
                        }
                    }

                    
// Converts the cell content so that spaces occuring at beginning of each new line are replaced by &nbsp;
                    // Example: "  Hellon to the world" is converted to "&nbsp;&nbsp;Hellon&nbsp;to the world"
                    
$cellData preg_replace("/(?m)(?:^|\G) /"'&nbsp;'$cellData);

                    
// convert newline "n" to '<br>'
                    
$cellData nl2br($cellData);

                    
// Extend CSS class?
                    
if (!$this->useInlineCss) {
                        
$cssClass .= ' style' $cell->getXfIndex();
                        
$cssClass .= ' ' $cell->getDataType();
                    } else {
                        if (
$cellType == 'th') {
                            if (isset(
$this->cssStyles['th.style' $cell->getXfIndex()])) {
                                
$cssClass array_merge($cssClass$this->cssStyles['th.style' $cell->getXfIndex()]);
                            }
                        } else {
                            if (isset(
$this->cssStyles['td.style' $cell->getXfIndex()])) {
                                
$cssClass array_merge($cssClass$this->cssStyles['td.style' $cell->getXfIndex()]);
                            }
                        }

                        
// General horizontal alignment: Actual horizontal alignment depends on dataType
                        
$sharedStyle $pSheet->getParent()->getCellXfByIndex($cell->getXfIndex());
                        if (
$sharedStyle->getAlignment()->getHorizontal() == PHPExcel_Style_Alignment::HORIZONTAL_GENERAL
                            
&& isset($this->cssStyles['.' $cell->getDataType()]['text-align'])) {
                            
$cssClass['text-align'] = $this->cssStyles['.' $cell->getDataType()]['text-align'];
                        }
                    }
                }

                
// Hyperlink?
                
if ($pSheet->hyperlinkExists($coordinate) && !$pSheet->getHyperlink($coordinate)->isInternal()) {
                    
$cellData '<a href="' htmlspecialchars($pSheet->getHyperlink($coordinate)->getUrl()) . '" title="' htmlspecialchars($pSheet->getHyperlink($coordinate)->getTooltip()) . '">' $cellData '</a>';
                }

                
// Should the cell be written or is it swallowed by a rowspan or colspan?
                
$writeCell = !(isset($this->isSpannedCell[$pSheet->getParent()->getIndex($pSheet)][$pRow 1][$colNum])
                            && 
$this->isSpannedCell[$pSheet->getParent()->getIndex($pSheet)][$pRow 1][$colNum]);

                
// Colspan and Rowspan
                
$colspan 1;
                
$rowspan 1;
                if (isset(
$this->isBaseCell[$pSheet->getParent()->getIndex($pSheet)][$pRow 1][$colNum])) {
                    
$spans $this->isBaseCell[$pSheet->getParent()->getIndex($pSheet)][$pRow 1][$colNum];
                    
$rowSpan $spans['rowspan'];
                    
$colSpan $spans['colspan'];

                    
//    Also apply style from last cell in merge to fix borders -
                    //        relies on !important for non-none border declarations in createCSSStyleBorder
                    
$endCellCoord PHPExcel_Cell::stringFromColumnIndex($colNum $colSpan 1) . ($pRow $rowSpan);
                    if (!
$this->useInlineCss) {
                        
$cssClass .= ' style' $pSheet->getCell($endCellCoord)->getXfIndex();
                    }
                }

                
// Write
                
if ($writeCell) {
                    
// Column start
                    
$html .= '            <' $cellType;
                    if (!
$this->useInlineCss) {
                        
$html .= ' class="' $cssClass '"';
                    } else {
                        
//** Necessary redundant code for the sake of PHPExcel_Writer_PDF **
                        // We must explicitly write the width of the <td> element because TCPDF
                        // does not recognize e.g. <col style="width:42pt">
                        
$width 0;
                        
$i $colNum 1;
                        
$e $colNum $colSpan 1;
                        while (
$i++ < $e) {
                            if (isset(
$this->columnWidths[$sheetIndex][$i])) {
                                
$width += $this->columnWidths[$sheetIndex][$i];
                            }
                        }
                        
$cssClass['width'] = $width 'pt';

                        
// We must also explicitly write the height of the <td> element because TCPDF
                        // does not recognize e.g. <tr style="height:50pt">
                        
if (isset($this->cssStyles['table.sheet' $sheetIndex ' tr.row' $pRow]['height'])) {
                            
$height $this->cssStyles['table.sheet' $sheetIndex ' tr.row' $pRow]['height'];
                            
$cssClass['height'] = $height;
                        }
                        
//** end of redundant code **

                        
$html .= ' style="' $this->assembleCSS($cssClass) . '"';
                    }
                    if (
$colSpan 1) {
                        
$html .= ' colspan="' $colSpan '"';
                    }
                    if (
$rowSpan 1) {
                        
$html .= ' rowspan="' $rowSpan '"';
                    }
                    
$html .= '>';

                    
// Image?
                    
$html .= $this->writeImageInCell($pSheet$coordinate);

                    
// Chart?
                    
if ($this->includeCharts) {
                        
$html .= $this->writeChartInCell($pSheet$coordinate);
                    }

                    
// Cell data
                    
$html .= $cellData;

                    
// Column end
                    
$html .= '</'.$cellType.'>' PHP_EOL;
                }

                
// Next column
                
++$colNum;
            }

            
// Write row end
            
$html .= '          </tr>' PHP_EOL;

            
// Return
            
return $html;
        } else {
            throw new 
PHPExcel_Writer_Exception("Invalid parameters passed.");
        }
    }

    
/**
     * Takes array where of CSS properties / values and converts to CSS string
     *
     * @param array
     * @return string
     */
    
private function assembleCSS($pValue = array())
    {
        
$pairs = array();
        foreach (
$pValue as $property => $value) {
            
$pairs[] = $property ':' $value;
        }
        
$string implode('; '$pairs);

        return 
$string;
    }

    
/**
     * 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;
    }

    
/**
     * Get embed images
     *
     * @return boolean
     */
    
public function getEmbedImages()
    {
        return 
$this->embedImages;
    }

    
/**
     * Set embed images
     *
     * @param boolean $pValue
     * @return PHPExcel_Writer_HTML
     */
    
public function setEmbedImages($pValue '.')
    {
        
$this->embedImages $pValue;
        return 
$this;
    }

    
/**
     * 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;
    }

    
/**
     * Add color to formatted string as inline style
     *
     * @param string $pValue Plain formatted value without color
     * @param string $pFormat Format code
     * @return string
     */
    
public function formatColor($pValue$pFormat)
    {
        
// Color information, e.g. [Red] is always at the beginning
        
$color null// initialize
        
$matches = array();

        
$color_regex '/^\[[a-zA-Z]+\]/';
        if (
preg_match($color_regex$pFormat$matches)) {
            
$color str_replace('['''$matches[0]);
            
$color str_replace(']'''$color);
            
$color strtolower($color);
        }

        
// convert to PCDATA
        
$value htmlspecialchars($pValue);

        
// color span tag
        
if ($color !== null) {
            
$value '<span style="color:' $color '">' $value '</span>';
        }

        return 
$value;
    }

    
/**
     * Calculate information about HTML colspan and rowspan which is not always the same as Excel's
     */
    
private function calculateSpans()
    {
        
// Identify all cells that should be omitted in HTML due to cell merge.
        // In HTML only the upper-left cell should be written and it should have
        //   appropriate rowspan / colspan attribute
        
$sheetIndexes $this->sheetIndex !== null ?
            array(
$this->sheetIndex) : range(0$this->phpExcel->getSheetCount() - 1);

        foreach (
$sheetIndexes as $sheetIndex) {
            
$sheet $this->phpExcel->getSheet($sheetIndex);

            
$candidateSpannedRow  = array();

            
// loop through all Excel merged cells
            
foreach ($sheet->getMergeCells() as $cells) {
                list(
$cells,) = PHPExcel_Cell::splitRange($cells);
                
$first $cells[0];
                
$last  $cells[1];

                list(
$fc$fr) = PHPExcel_Cell::coordinateFromString($first);
                
$fc PHPExcel_Cell::columnIndexFromString($fc) - 1;

                list(
$lc$lr) = PHPExcel_Cell::coordinateFromString($last);
                
$lc PHPExcel_Cell::columnIndexFromString($lc) - 1;

                
// loop through the individual cells in the individual merge
                
$r $fr 1;
                while (
$r++ < $lr) {
                    
// also, flag this row as a HTML row that is candidate to be omitted
                    
$candidateSpannedRow[$r] = $r;

                    
$c $fc 1;
                    while (
$c++ < $lc) {
                        if (!(
$c == $fc && $r == $fr)) {
                            
// not the upper-left cell (should not be written in HTML)
                            
$this->isSpannedCell[$sheetIndex][$r][$c] = array(
                                
'baseCell' => array($fr$fc),
                            );
                        } else {
                            
// upper-left is the base cell that should hold the colspan/rowspan attribute
                            
$this->isBaseCell[$sheetIndex][$r][$c] = array(
                                
'xlrowspan' => $lr $fr 1// Excel rowspan
                                
'rowspan'   => $lr $fr 1// HTML rowspan, value may change
                                
'xlcolspan' => $lc $fc 1// Excel colspan
                                
'colspan'   => $lc $fc 1// HTML colspan, value may change
                            
);
                        }
                    }
                }
            }

            
// Identify which rows should be omitted in HTML. These are the rows where all the cells
            //   participate in a merge and the where base cells are somewhere above.
            
$countColumns PHPExcel_Cell::columnIndexFromString($sheet->getHighestColumn());
            foreach (
$candidateSpannedRow as $rowIndex) {
                if (isset(
$this->isSpannedCell[$sheetIndex][$rowIndex])) {
                    if (
count($this->isSpannedCell[$sheetIndex][$rowIndex]) == $countColumns) {
                        
$this->isSpannedRow[$sheetIndex][$rowIndex] = $rowIndex;
                    };
                }
            }

            
// For each of the omitted rows we found above, the affected rowspans should be subtracted by 1
            
if (isset($this->isSpannedRow[$sheetIndex])) {
                foreach (
$this->isSpannedRow[$sheetIndex] as $rowIndex) {
                    
$adjustedBaseCells = array();
                    
$c = -1;
                    
$e $countColumns 1;
                    while (
$c++ < $e) {
                        
$baseCell $this->isSpannedCell[$sheetIndex][$rowIndex][$c]['baseCell'];

                        if (!
in_array($baseCell$adjustedBaseCells)) {
                            
// subtract rowspan by 1
                            
--$this->isBaseCell[$sheetIndex][ $baseCell[0] ][ $baseCell[1] ]['rowspan'];
                            
$adjustedBaseCells[] = $baseCell;
                        }
                    }
                }
            }

            
// TODO: Same for columns
        
}

        
// We have calculated the spans
        
$this->spansAreCalculated true;
    }

    private function 
setMargins(PHPExcel_Worksheet $pSheet)
    {
        
$htmlPage '@page { ';
        
$htmlBody 'body { ';

        
$left PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getLeft()) . 'in; ';
        
$htmlPage .= 'margin-left: ' $left;
        
$htmlBody .= 'margin-left: ' $left;
        
$right PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getRight()) . 'in; ';
        
$htmlPage .= 'margin-right: ' $right;
        
$htmlBody .= 'margin-right: ' $right;
        
$top PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getTop()) . 'in; ';
        
$htmlPage .= 'margin-top: ' $top;
        
$htmlBody .= 'margin-top: ' $top;
        
$bottom PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getBottom()) . 'in; ';
        
$htmlPage .= 'margin-bottom: ' $bottom;
        
$htmlBody .= 'margin-bottom: ' $bottom;

        
$htmlPage .= "}n";
        
$htmlBody .= "}n";

        return 
"<style>n" $htmlPage $htmlBody "</style>n";
    }
}
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