vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php

   1 <?php
   2 /**
   3  * PHPExcel
   4  *
   5  * Copyright (c) 2006 - 2014 PHPExcel
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  20  *
  21  * @category   PHPExcel
  22  * @package     PHPExcel_Writer_HTML
  23  * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
  24  * @license     http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt   LGPL
  25  * @version     ##VERSION##, ##DATE##
  26  */
  27
  28
  29 /**
  30  * PHPExcel_Writer_HTML
  31  *
  32  * @category   PHPExcel
  33  * @package     PHPExcel_Writer_HTML
  34  * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
  35  */
  36 class PHPExcel_Writer_HTML extends PHPExcel_Writer_Abstract implements PHPExcel_Writer_IWriter {
  37         /**
  38          * PHPExcel object
  39          *
  40          * @var PHPExcel
  41          */
  42         protected $_phpExcel;
  43
  44         /**
  45          * Sheet index to write
  46          *
  47          * @var int
  48          */
  49         private $_sheetIndex    = 0;
  50
  51         /**
  52          * Images root
  53          *
  54          * @var string
  55          */
  56         private $_imagesRoot    = '.';
  57
  58         /**
  59          * embed images, or link to images
  60          *
  61          * @var boolean
  62          */
  63         private $_embedImages   = FALSE;
  64
  65         /**
  66          * Use inline CSS?
  67          *
  68          * @var boolean
  69          */
  70         private $_useInlineCss = false;
  71
  72         /**
  73          * Array of CSS styles
  74          *
  75          * @var array
  76          */
  77         private $_cssStyles = null;
  78
  79         /**
  80          * Array of column widths in points
  81          *
  82          * @var array
  83          */
  84         private $_columnWidths = null;
  85
  86         /**
  87          * Default font
  88          *
  89          * @var PHPExcel_Style_Font
  90          */
  91         private $_defaultFont;
  92
  93         /**
  94          * Flag whether spans have been calculated
  95          *
  96          * @var boolean
  97          */
  98         private $_spansAreCalculated    = false;
  99
 100         /**
 101          * Excel cells that should not be written as HTML cells
 102          *
 103          * @var array
 104          */
 105         private $_isSpannedCell = array();
 106
 107         /**
 108          * Excel cells that are upper-left corner in a cell merge
 109          *
 110          * @var array
 111          */
 112         private $_isBaseCell    = array();
 113
 114         /**
 115          * Excel rows that should not be written as HTML rows
 116          *
 117          * @var array
 118          */
 119         private $_isSpannedRow  = array();
 120
 121         /**
 122          * Is the current writer creating PDF?
 123          *
 124          * @var boolean
 125          */
 126         protected $_isPdf = false;
 127
 128         /**
 129          * Generate the Navigation block
 130          *
 131          * @var boolean
 132          */
 133         private $_generateSheetNavigationBlock = true;
 134
 135         /**
 136          * Create a new PHPExcel_Writer_HTML
 137          *
 138          * @param       PHPExcel        $phpExcel       PHPExcel object
 139          */
 140         public function __construct(PHPExcel $phpExcel) {
 141                 $this->_phpExcel = $phpExcel;
 142                 $this->_defaultFont = $this->_phpExcel->getDefaultStyle()->getFont();
 143         }
 144
 145         /**
 146          * Save PHPExcel to file
 147          *
 148          * @param       string          $pFilename
 149          * @throws      PHPExcel_Writer_Exception
 150          */
 151         public function save($pFilename = null) {
 152                 // garbage collect
 153                 $this->_phpExcel->garbageCollect();
 154
 155                 $saveDebugLog = PHPExcel_Calculation::getInstance($this->_phpExcel)->getDebugLog()->getWriteDebugLog();
 156                 PHPExcel_Calculation::getInstance($this->_phpExcel)->getDebugLog()->setWriteDebugLog(FALSE);
 157                 $saveArrayReturnType = PHPExcel_Calculation::getArrayReturnType();
 158                 PHPExcel_Calculation::setArrayReturnType(PHPExcel_Calculation::RETURN_ARRAY_AS_VALUE);
 159
 160                 // Build CSS
 161                 $this->buildCSS(!$this->_useInlineCss);
 162
 163                 // Open file
 164                 $fileHandle = fopen($pFilename, 'wb+');
 165                 if ($fileHandle === false) {
 166                         throw new PHPExcel_Writer_Exception("Could not open file $pFilename for writing.");
 167                 }
 168
 169                 // Write headers
 170                 fwrite($fileHandle, $this->generateHTMLHeader(!$this->_useInlineCss));
 171
 172                 // Write navigation (tabs)
 173                 if ((!$this->_isPdf) && ($this->_generateSheetNavigationBlock)) {
 174                         fwrite($fileHandle, $this->generateNavigation());
 175                 }
 176
 177                 // Write data
 178                 fwrite($fileHandle, $this->generateSheetData());
 179
 180                 // Write footer
 181                 fwrite($fileHandle, $this->generateHTMLFooter());
 182
 183                 // Close file
 184                 fclose($fileHandle);
 185
 186                 PHPExcel_Calculation::setArrayReturnType($saveArrayReturnType);
 187                 PHPExcel_Calculation::getInstance($this->_phpExcel)->getDebugLog()->setWriteDebugLog($saveDebugLog);
 188         }
 189
 190         /**
 191          * Map VAlign
 192          *
 193          * @param       string          $vAlign         Vertical alignment
 194          * @return string
 195          */
 196         private function _mapVAlign($vAlign) {
 197                 switch ($vAlign) {
 198                         case PHPExcel_Style_Alignment::VERTICAL_BOTTOM:         return 'bottom';
 199                         case PHPExcel_Style_Alignment::VERTICAL_TOP:            return 'top';
 200                         case PHPExcel_Style_Alignment::VERTICAL_CENTER:
 201                         case PHPExcel_Style_Alignment::VERTICAL_JUSTIFY:        return 'middle';
 202                         default: return 'baseline';
 203                 }
 204         }
 205
 206         /**
 207          * Map HAlign
 208          *
 209          * @param       string          $hAlign         Horizontal alignment
 210          * @return string|false
 211          */
 212         private function _mapHAlign($hAlign) {
 213                 switch ($hAlign) {
 214                         case PHPExcel_Style_Alignment::HORIZONTAL_GENERAL:                              return false;
 215                         case PHPExcel_Style_Alignment::HORIZONTAL_LEFT:                                 return 'left';
 216                         case PHPExcel_Style_Alignment::HORIZONTAL_RIGHT:                                return 'right';
 217                         case PHPExcel_Style_Alignment::HORIZONTAL_CENTER:
 218                         case PHPExcel_Style_Alignment::HORIZONTAL_CENTER_CONTINUOUS:    return 'center';
 219                         case PHPExcel_Style_Alignment::HORIZONTAL_JUSTIFY:                              return 'justify';
 220                         default: return false;
 221                 }
 222         }
 223
 224         /**
 225          * Map border style
 226          *
 227          * @param       int             $borderStyle            Sheet index
 228          * @return      string
 229          */
 230         private function _mapBorderStyle($borderStyle) {
 231                 switch ($borderStyle) {
 232                         case PHPExcel_Style_Border::BORDER_NONE:                                return 'none';
 233                         case PHPExcel_Style_Border::BORDER_DASHDOT:                             return '1px dashed';
 234                         case PHPExcel_Style_Border::BORDER_DASHDOTDOT:                  return '1px dotted';
 235                         case PHPExcel_Style_Border::BORDER_DASHED:                              return '1px dashed';
 236                         case PHPExcel_Style_Border::BORDER_DOTTED:                              return '1px dotted';
 237                         case PHPExcel_Style_Border::BORDER_DOUBLE:                              return '3px double';
 238                         case PHPExcel_Style_Border::BORDER_HAIR:                                return '1px solid';
 239                         case PHPExcel_Style_Border::BORDER_MEDIUM:                              return '2px solid';
 240                         case PHPExcel_Style_Border::BORDER_MEDIUMDASHDOT:               return '2px dashed';
 241                         case PHPExcel_Style_Border::BORDER_MEDIUMDASHDOTDOT:    return '2px dotted';
 242                         case PHPExcel_Style_Border::BORDER_MEDIUMDASHED:                return '2px dashed';
 243                         case PHPExcel_Style_Border::BORDER_SLANTDASHDOT:                return '2px dashed';
 244                         case PHPExcel_Style_Border::BORDER_THICK:                               return '3px solid';
 245                         case PHPExcel_Style_Border::BORDER_THIN:                                return '1px solid';
 246                         default: return '1px solid'; // map others to thin
 247                 }
 248         }
 249
 250         /**
 251          * Get sheet index
 252          *
 253          * @return int
 254          */
 255         public function getSheetIndex() {
 256                 return $this->_sheetIndex;
 257         }
 258
 259         /**
 260          * Set sheet index
 261          *
 262          * @param       int             $pValue         Sheet index
 263          * @return PHPExcel_Writer_HTML
 264          */
 265         public function setSheetIndex($pValue = 0) {
 266                 $this->_sheetIndex = $pValue;
 267                 return $this;
 268         }
 269
 270         /**
 271          * Get sheet index
 272          *
 273          * @return boolean
 274          */
 275         public function getGenerateSheetNavigationBlock() {
 276                 return $this->_generateSheetNavigationBlock;
 277         }
 278
 279         /**
 280          * Set sheet index
 281          *
 282          * @param       boolean         $pValue         Flag indicating whether the sheet navigation block should be generated or not
 283          * @return PHPExcel_Writer_HTML
 284          */
 285         public function setGenerateSheetNavigationBlock($pValue = true) {
 286                 $this->_generateSheetNavigationBlock = (bool) $pValue;
 287                 return $this;
 288         }
 289
 290         /**
 291          * Write all sheets (resets sheetIndex to NULL)
 292          */
 293         public function writeAllSheets() {
 294                 $this->_sheetIndex = null;
 295                 return $this;
 296         }
 297
 298         /**
 299          * Generate HTML header
 300          *
 301          * @param       boolean         $pIncludeStyles         Include styles?
 302          * @return      string
 303          * @throws PHPExcel_Writer_Exception
 304          */
 305         public function generateHTMLHeader($pIncludeStyles = false) {
 306                 // PHPExcel object known?
 307                 if (is_null($this->_phpExcel)) {
 308                         throw new PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
 309                 }
 310
 311                 // Construct HTML
 312                 $properties = $this->_phpExcel->getProperties();
 313                 $html = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">' . PHP_EOL;
 314                 $html .= '<!-- Generated by PHPExcel - http://www.phpexcel.net -->' . PHP_EOL;
 315                 $html .= '<html>' . PHP_EOL;
 316                 $html .= '  <head>' . PHP_EOL;
 317                 $html .= '        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">' . PHP_EOL;
 318                 if ($properties->getTitle() > '')
 319                         $html .= '        <title>' . htmlspecialchars($properties->getTitle()) . '</title>' . PHP_EOL;
 320
 321                 if ($properties->getCreator() > '')
 322                         $html .= '        <meta name="author" content="' . htmlspecialchars($properties->getCreator()) . '" />' . PHP_EOL;
 323                 if ($properties->getTitle() > '')
 324                         $html .= '        <meta name="title" content="' . htmlspecialchars($properties->getTitle()) . '" />' . PHP_EOL;
 325                 if ($properties->getDescription() > '')
 326                         $html .= '        <meta name="description" content="' . htmlspecialchars($properties->getDescription()) . '" />' . PHP_EOL;
 327                 if ($properties->getSubject() > '')
 328                         $html .= '        <meta name="subject" content="' . htmlspecialchars($properties->getSubject()) . '" />' . PHP_EOL;
 329                 if ($properties->getKeywords() > '')
 330                         $html .= '        <meta name="keywords" content="' . htmlspecialchars($properties->getKeywords()) . '" />' . PHP_EOL;
 331                 if ($properties->getCategory() > '')
 332                         $html .= '        <meta name="category" content="' . htmlspecialchars($properties->getCategory()) . '" />' . PHP_EOL;
 333                 if ($properties->getCompany() > '')
 334                         $html .= '        <meta name="company" content="' . htmlspecialchars($properties->getCompany()) . '" />' . PHP_EOL;
 335                 if ($properties->getManager() > '')
 336                         $html .= '        <meta name="manager" content="' . htmlspecialchars($properties->getManager()) . '" />' . PHP_EOL;
 337
 338                 if ($pIncludeStyles) {
 339                         $html .= $this->generateStyles(true);
 340                 }
 341
 342                 $html .= '  </head>' . PHP_EOL;
 343                 $html .= '' . PHP_EOL;
 344                 $html .= '  <body>' . PHP_EOL;
 345
 346                 // Return
 347                 return $html;
 348         }
 349
 350         /**
 351          * Generate sheet data
 352          *
 353          * @return      string
 354          * @throws PHPExcel_Writer_Exception
 355          */
 356         public function generateSheetData() {
 357                 // PHPExcel object known?
 358                 if (is_null($this->_phpExcel)) {
 359                         throw new PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
 360                 }
 361
 362                 // Ensure that Spans have been calculated?
 363                 if (!$this->_spansAreCalculated) {
 364                         $this->_calculateSpans();
 365                 }
 366
 367                 // Fetch sheets
 368                 $sheets = array();
 369                 if (is_null($this->_sheetIndex)) {
 370                         $sheets = $this->_phpExcel->getAllSheets();
 371                 } else {
 372                         $sheets[] = $this->_phpExcel->getSheet($this->_sheetIndex);
 373                 }
 374
 375                 // Construct HTML
 376                 $html = '';
 377
 378                 // Loop all sheets
 379                 $sheetId = 0;
 380                 foreach ($sheets as $sheet) {
 381                         // Write table header
 382                         $html .= $this->_generateTableHeader($sheet);
 383
 384                         // Get worksheet dimension
 385                         $dimension = explode(':', $sheet->calculateWorksheetDimension());
 386                         $dimension[0] = PHPExcel_Cell::coordinateFromString($dimension[0]);
 387                         $dimension[0][0] = PHPExcel_Cell::columnIndexFromString($dimension[0][0]) - 1;
 388                         $dimension[1] = PHPExcel_Cell::coordinateFromString($dimension[1]);
 389                         $dimension[1][0] = PHPExcel_Cell::columnIndexFromString($dimension[1][0]) - 1;
 390
 391                         // row min,max
 392                         $rowMin = $dimension[0][1];
 393                         $rowMax = $dimension[1][1];
 394
 395                         // calculate start of <tbody>, <thead>
 396                         $tbodyStart = $rowMin;
 397                         $theadStart = $theadEnd   = 0; // default: no <thead>   no </thead>
 398                         if ($sheet->getPageSetup()->isRowsToRepeatAtTopSet()) {
 399                                 $rowsToRepeatAtTop = $sheet->getPageSetup()->getRowsToRepeatAtTop();
 400
 401                                 // we can only support repeating rows that start at top row
 402                                 if ($rowsToRepeatAtTop[0] == 1) {
 403                                         $theadStart = $rowsToRepeatAtTop[0];
 404                                         $theadEnd   = $rowsToRepeatAtTop[1];
 405                                         $tbodyStart = $rowsToRepeatAtTop[1] + 1;
 406                                 }
 407                         }
 408
 409                         // Loop through cells
 410                         $row = $rowMin-1;
 411                         while($row++ < $rowMax) {
 412                                 // <thead> ?
 413                                 if ($row == $theadStart) {
 414                                         $html .= '              <thead>' . PHP_EOL;
 415                     $cellType = 'th';
 416                                 }
 417
 418                                 // <tbody> ?
 419                                 if ($row == $tbodyStart) {
 420                                         $html .= '              <tbody>' . PHP_EOL;
 421                     $cellType = 'td';
 422                                 }
 423
 424                                 // Write row if there are HTML table cells in it
 425                                 if ( !isset($this->_isSpannedRow[$sheet->getParent()->getIndex($sheet)][$row]) ) {
 426                                         // Start a new rowData
 427                                         $rowData = array();
 428                                         // Loop through columns
 429                                         $column = $dimension[0][0] - 1;
 430                                         while($column++ < $dimension[1][0]) {
 431                                                 // Cell exists?
 432                                                 if ($sheet->cellExistsByColumnAndRow($column, $row)) {
 433                                                         $rowData[$column] = PHPExcel_Cell::stringFromColumnIndex($column) . $row;
 434                                                 } else {
 435                                                         $rowData[$column] = '';
 436                                                 }
 437                                         }
 438                                         $html .= $this->_generateRow($sheet, $rowData, $row - 1, $cellType);
 439                                 }
 440
 441                                 // </thead> ?
 442                                 if ($row == $theadEnd) {
 443                                         $html .= '              </thead>' . PHP_EOL;
 444                                 }
 445                         }
 446                         $html .= $this->_extendRowsForChartsAndImages($sheet, $row);
 447
 448                         // Close table body.
 449                         $html .= '              </tbody>' . PHP_EOL;
 450
 451                         // Write table footer
 452                         $html .= $this->_generateTableFooter();
 453
 454                         // Writing PDF?
 455                         if ($this->_isPdf) {
 456                                 if (is_null($this->_sheetIndex) && $sheetId + 1 < $this->_phpExcel->getSheetCount()) {
 457                                         $html .= '<div style="page-break-before:always" />';
 458                                 }
 459                         }
 460
 461                         // Next sheet
 462                         ++$sheetId;
 463                 }
 464
 465                 // Return
 466                 return $html;
 467         }
 468
 469         /**
 470          * Generate sheet tabs
 471          *
 472          * @return      string
 473          * @throws PHPExcel_Writer_Exception
 474          */
 475         public function generateNavigation()
 476         {
 477                 // PHPExcel object known?
 478                 if (is_null($this->_phpExcel)) {
 479                         throw new PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
 480                 }
 481
 482                 // Fetch sheets
 483                 $sheets = array();
 484                 if (is_null($this->_sheetIndex)) {
 485                         $sheets = $this->_phpExcel->getAllSheets();
 486                 } else {
 487                         $sheets[] = $this->_phpExcel->getSheet($this->_sheetIndex);
 488                 }
 489
 490                 // Construct HTML
 491                 $html = '';
 492
 493                 // Only if there are more than 1 sheets
 494                 if (count($sheets) > 1) {
 495                         // Loop all sheets
 496                         $sheetId = 0;
 497
 498                         $html .= '<ul class="navigation">' . PHP_EOL;
 499
 500                         foreach ($sheets as $sheet) {
 501                                 $html .= '  <li class="sheet' . $sheetId . '"><a href="#sheet' . $sheetId . '">' . $sheet->getTitle() . '</a></li>' . PHP_EOL;
 502                                 ++$sheetId;
 503                         }
 504
 505                         $html .= '</ul>' . PHP_EOL;
 506                 }
 507
 508                 return $html;
 509         }
 510
 511         private function _extendRowsForChartsAndImages(PHPExcel_Worksheet $pSheet, $row) {
 512                 $rowMax = $row;
 513                 $colMax = 'A';
 514                 if ($this->_includeCharts) {
 515                         foreach ($pSheet->getChartCollection() as $chart) {
 516                                 if ($chart instanceof PHPExcel_Chart) {
 517                                     $chartCoordinates = $chart->getTopLeftPosition();
 518                                     $chartTL = PHPExcel_Cell::coordinateFromString($chartCoordinates['cell']);
 519                                         $chartCol = PHPExcel_Cell::columnIndexFromString($chartTL[0]);
 520                                         if ($chartTL[1] > $rowMax) {
 521                                                 $rowMax = $chartTL[1];
 522                                                 if ($chartCol > PHPExcel_Cell::columnIndexFromString($colMax)) {
 523                                                         $colMax = $chartTL[0];
 524                                                 }
 525                                         }
 526                                 }
 527                         }
 528                 }
 529
 530                 foreach ($pSheet->getDrawingCollection() as $drawing) {
 531                         if ($drawing instanceof PHPExcel_Worksheet_Drawing) {
 532                             $imageTL = PHPExcel_Cell::coordinateFromString($drawing->getCoordinates());
 533                                 $imageCol = PHPExcel_Cell::columnIndexFromString($imageTL[0]);
 534                                 if ($imageTL[1] > $rowMax) {
 535                                         $rowMax = $imageTL[1];
 536                                         if ($imageCol > PHPExcel_Cell::columnIndexFromString($colMax)) {
 537                                                 $colMax = $imageTL[0];
 538                                         }
 539                                 }
 540                         }
 541                 }
 542                 $html = '';
 543                 $colMax++;
 544                 while ($row < $rowMax) {
 545                         $html .= '<tr>';
 546                         for ($col = 'A'; $col != $colMax; ++$col) {
 547                                 $html .= '<td>';
 548                                 $html .= $this->_writeImageInCell($pSheet, $col.$row);
 549                                 if ($this->_includeCharts) {
 550                                         $html .= $this->_writeChartInCell($pSheet, $col.$row);
 551                                 }
 552                                 $html .= '</td>';
 553                         }
 554                         ++$row;
 555                         $html .= '</tr>';
 556                 }
 557                 return $html;
 558         }
 559
 560
 561         /**
 562          * Generate image tag in cell
 563          *
 564          * @param       PHPExcel_Worksheet      $pSheet                 PHPExcel_Worksheet
 565          * @param       string                          $coordinates    Cell coordinates
 566          * @return      string
 567          * @throws      PHPExcel_Writer_Exception
 568          */
 569         private function _writeImageInCell(PHPExcel_Worksheet $pSheet, $coordinates) {
 570                 // Construct HTML
 571                 $html = '';
 572
 573                 // Write images
 574                 foreach ($pSheet->getDrawingCollection() as $drawing) {
 575                         if ($drawing instanceof PHPExcel_Worksheet_Drawing) {
 576                                 if ($drawing->getCoordinates() == $coordinates) {
 577                                         $filename = $drawing->getPath();
 578
 579                                         // Strip off eventual '.'
 580                                         if (substr($filename, 0, 1) == '.') {
 581                                                 $filename = substr($filename, 1);
 582                                         }
 583
 584                                         // Prepend images root
 585                                         $filename = $this->getImagesRoot() . $filename;
 586
 587                                         // Strip off eventual '.'
 588                                         if (substr($filename, 0, 1) == '.' && substr($filename, 0, 2) != './') {
 589                                                 $filename = substr($filename, 1);
 590                                         }
 591
 592                                         // Convert UTF8 data to PCDATA
 593                                         $filename = htmlspecialchars($filename);
 594
 595                                         $html .= PHP_EOL;
 596                                         if ((!$this->_embedImages) || ($this->_isPdf)) {
 597                                                 $imageData = $filename;
 598                                         } else {
 599                                                 $imageDetails = getimagesize($filename);
 600                                                 if ($fp = fopen($filename,"rb", 0)) {
 601                                                         $picture = fread($fp,filesize($filename));
 602                                                         fclose($fp);
 603                                                         // base64 encode the binary data, then break it
 604                                                         // into chunks according to RFC 2045 semantics
 605                                                         $base64 = chunk_split(base64_encode($picture));
 606                                                         $imageData = 'data:'.$imageDetails['mime'].';base64,' . $base64;
 607                                                 } else {
 608                                                         $imageData = $filename;
 609                                                 }
 610                                         }
 611
 612                                         $html .= '<div style="position: relative;">';
 613                                         $html .= '<img style="position: absolute; z-index: 1; left: ' .
 614                         $drawing->getOffsetX() . 'px; top: ' . $drawing->getOffsetY() . 'px; width: ' .
 615                         $drawing->getWidth() . 'px; height: ' . $drawing->getHeight() . 'px;" src="' .
 616                         $imageData . '" border="0" />';
 617                                         $html .= '</div>';
 618                                 }
 619                         }
 620                 }
 621
 622                 // Return
 623                 return $html;
 624         }
 625
 626         /**
 627          * Generate chart tag in cell
 628          *
 629          * @param       PHPExcel_Worksheet      $pSheet                 PHPExcel_Worksheet
 630          * @param       string                          $coordinates    Cell coordinates
 631          * @return      string
 632          * @throws      PHPExcel_Writer_Exception
 633          */
 634         private function _writeChartInCell(PHPExcel_Worksheet $pSheet, $coordinates) {
 635                 // Construct HTML
 636                 $html = '';
 637
 638                 // Write charts
 639                 foreach ($pSheet->getChartCollection() as $chart) {
 640                         if ($chart instanceof PHPExcel_Chart) {
 641                             $chartCoordinates = $chart->getTopLeftPosition();
 642                                 if ($chartCoordinates['cell'] == $coordinates) {
 643                                         $chartFileName = PHPExcel_Shared_File::sys_get_temp_dir().'/'.uniqid().'.png';
 644                                         if (!$chart->render($chartFileName)) {
 645                                                 return;
 646                                         }
 647
 648                                         $html .= PHP_EOL;
 649                                         $imageDetails = getimagesize($chartFileName);
 650                                         if ($fp = fopen($chartFileName,"rb", 0)) {
 651                                                 $picture = fread($fp,filesize($chartFileName));
 652                                                 fclose($fp);
 653                                                 // base64 encode the binary data, then break it
 654                                                 // into chunks according to RFC 2045 semantics
 655                                                 $base64 = chunk_split(base64_encode($picture));
 656                                                 $imageData = 'data:'.$imageDetails['mime'].';base64,' . $base64;
 657
 658                                                 $html .= '<div style="position: relative;">';
 659                                                 $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;
 660                                                 $html .= '</div>';
 661
 662                                                 unlink($chartFileName);
 663                                         }
 664                                 }
 665                         }
 666                 }
 667
 668                 // Return
 669                 return $html;
 670         }
 671
 672         /**
 673          * Generate CSS styles
 674          *
 675          * @param       boolean $generateSurroundingHTML        Generate surrounding HTML tags? (&lt;style&gt; and &lt;/style&gt;)
 676          * @return      string
 677          * @throws      PHPExcel_Writer_Exception
 678          */
 679         public function generateStyles($generateSurroundingHTML = true) {
 680                 // PHPExcel object known?
 681                 if (is_null($this->_phpExcel)) {
 682                         throw new PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
 683                 }
 684
 685                 // Build CSS
 686                 $css = $this->buildCSS($generateSurroundingHTML);
 687
 688                 // Construct HTML
 689                 $html = '';
 690
 691                 // Start styles
 692                 if ($generateSurroundingHTML) {
 693                         $html .= '      <style type="text/css">' . PHP_EOL;
 694                         $html .= '        html { ' . $this->_assembleCSS($css['html']) . ' }' . PHP_EOL;
 695                 }
 696
 697                 // Write all other styles
 698                 foreach ($css as $styleName => $styleDefinition) {
 699                         if ($styleName != 'html') {
 700                                 $html .= '        ' . $styleName . ' { ' . $this->_assembleCSS($styleDefinition) . ' }' . PHP_EOL;
 701                         }
 702                 }
 703
 704                 // End styles
 705                 if ($generateSurroundingHTML) {
 706                         $html .= '      </style>' . PHP_EOL;
 707                 }
 708
 709                 // Return
 710                 return $html;
 711         }
 712
 713         /**
 714          * Build CSS styles
 715          *
 716          * @param       boolean $generateSurroundingHTML        Generate surrounding HTML style? (html { })
 717          * @return      array
 718          * @throws      PHPExcel_Writer_Exception
 719          */
 720         public function buildCSS($generateSurroundingHTML = true) {
 721                 // PHPExcel object known?
 722                 if (is_null($this->_phpExcel)) {
 723                         throw new PHPExcel_Writer_Exception('Internal PHPExcel object not set to an instance of an object.');
 724                 }
 725
 726                 // Cached?
 727                 if (!is_null($this->_cssStyles)) {
 728                         return $this->_cssStyles;
 729                 }
 730
 731                 // Ensure that spans have been calculated
 732                 if (!$this->_spansAreCalculated) {
 733                         $this->_calculateSpans();
 734                 }
 735
 736                 // Construct CSS
 737                 $css = array();
 738
 739                 // Start styles
 740                 if ($generateSurroundingHTML) {
 741                         // html { }
 742                         $css['html']['font-family']       = 'Calibri, Arial, Helvetica, sans-serif';
 743                         $css['html']['font-size']               = '11pt';
 744                         $css['html']['background-color'] = 'white';
 745                 }
 746
 747
 748                 // table { }
 749                 $css['table']['border-collapse']  = 'collapse';
 750             if (!$this->_isPdf) {
 751                         $css['table']['page-break-after'] = 'always';
 752                 }
 753
 754                 // .gridlines td { }
 755                 $css['.gridlines td']['border'] = '1px dotted black';
 756                 $css['.gridlines th']['border'] = '1px dotted black';
 757
 758                 // .b {}
 759                 $css['.b']['text-align'] = 'center'; // BOOL
 760
 761                 // .e {}
 762                 $css['.e']['text-align'] = 'center'; // ERROR
 763
 764                 // .f {}
 765                 $css['.f']['text-align'] = 'right'; // FORMULA
 766
 767                 // .inlineStr {}
 768                 $css['.inlineStr']['text-align'] = 'left'; // INLINE
 769
 770                 // .n {}
 771                 $css['.n']['text-align'] = 'right'; // NUMERIC
 772
 773                 // .s {}
 774                 $css['.s']['text-align'] = 'left'; // STRING
 775
 776                 // Calculate cell style hashes
 777                 foreach ($this->_phpExcel->getCellXfCollection() as $index => $style) {
 778                         $css['td.style' . $index] = $this->_createCSSStyle( $style );
 779                         $css['th.style' . $index] = $this->_createCSSStyle( $style );
 780                 }
 781
 782                 // Fetch sheets
 783                 $sheets = array();
 784                 if (is_null($this->_sheetIndex)) {
 785                         $sheets = $this->_phpExcel->getAllSheets();
 786                 } else {
 787                         $sheets[] = $this->_phpExcel->getSheet($this->_sheetIndex);
 788                 }
 789
 790                 // Build styles per sheet
 791                 foreach ($sheets as $sheet) {
 792                         // Calculate hash code
 793                         $sheetIndex = $sheet->getParent()->getIndex($sheet);
 794
 795                         // Build styles
 796                         // Calculate column widths
 797                         $sheet->calculateColumnWidths();
 798
 799                         // col elements, initialize
 800                         $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($sheet->getHighestColumn()) - 1;
 801                         $column = -1;
 802                         while($column++ < $highestColumnIndex) {
 803                                 $this->_columnWidths[$sheetIndex][$column] = 42; // approximation
 804                                 $css['table.sheet' . $sheetIndex . ' col.col' . $column]['width'] = '42pt';
 805                         }
 806
 807                         // col elements, loop through columnDimensions and set width
 808                         foreach ($sheet->getColumnDimensions() as $columnDimension) {
 809                                 if (($width = PHPExcel_Shared_Drawing::cellDimensionToPixels($columnDimension->getWidth(), $this->_defaultFont)) >= 0) {
 810                                         $width = PHPExcel_Shared_Drawing::pixelsToPoints($width);
 811                                         $column = PHPExcel_Cell::columnIndexFromString($columnDimension->getColumnIndex()) - 1;
 812                                         $this->_columnWidths[$sheetIndex][$column] = $width;
 813                                         $css['table.sheet' . $sheetIndex . ' col.col' . $column]['width'] = $width . 'pt';
 814
 815                                         if ($columnDimension->getVisible() === false) {
 816                                                 $css['table.sheet' . $sheetIndex . ' col.col' . $column]['visibility'] = 'collapse';
 817                                                 $css['table.sheet' . $sheetIndex . ' col.col' . $column]['*display'] = 'none'; // target IE6+7
 818                                         }
 819                                 }
 820                         }
 821
 822                         // Default row height
 823                         $rowDimension = $sheet->getDefaultRowDimension();
 824
 825                         // table.sheetN tr { }
 826                         $css['table.sheet' . $sheetIndex . ' tr'] = array();
 827
 828                         if ($rowDimension->getRowHeight() == -1) {
 829                                 $pt_height = PHPExcel_Shared_Font::getDefaultRowHeightByFont($this->_phpExcel->getDefaultStyle()->getFont());
 830                         } else {
 831                                 $pt_height = $rowDimension->getRowHeight();
 832                         }
 833                         $css['table.sheet' . $sheetIndex . ' tr']['height'] = $pt_height . 'pt';
 834                         if ($rowDimension->getVisible() === false) {
 835                                 $css['table.sheet' . $sheetIndex . ' tr']['display']    = 'none';
 836                                 $css['table.sheet' . $sheetIndex . ' tr']['visibility'] = 'hidden';
 837                         }
 838
 839                         // Calculate row heights
 840                         foreach ($sheet->getRowDimensions() as $rowDimension) {
 841                                 $row = $rowDimension->getRowIndex() - 1;
 842
 843                                 // table.sheetN tr.rowYYYYYY { }
 844                                 $css['table.sheet' . $sheetIndex . ' tr.row' . $row] = array();
 845
 846                                 if ($rowDimension->getRowHeight() == -1) {
 847                                         $pt_height = PHPExcel_Shared_Font::getDefaultRowHeightByFont($this->_phpExcel->getDefaultStyle()->getFont());
 848                                 } else {
 849                                         $pt_height = $rowDimension->getRowHeight();
 850                                 }
 851                                 $css['table.sheet' . $sheetIndex . ' tr.row' . $row]['height'] = $pt_height . 'pt';
 852                                 if ($rowDimension->getVisible() === false) {
 853                                         $css['table.sheet' . $sheetIndex . ' tr.row' . $row]['display'] = 'none';
 854                                         $css['table.sheet' . $sheetIndex . ' tr.row' . $row]['visibility'] = 'hidden';
 855                                 }
 856                         }
 857                 }
 858
 859                 // Cache
 860                 if (is_null($this->_cssStyles)) {
 861                         $this->_cssStyles = $css;
 862                 }
 863
 864                 // Return
 865                 return $css;
 866         }
 867
 868         /**
 869          * Create CSS style
 870          *
 871          * @param       PHPExcel_Style          $pStyle                 PHPExcel_Style
 872          * @return      array
 873          */
 874         private function _createCSSStyle(PHPExcel_Style $pStyle) {
 875                 // Construct CSS
 876                 $css = '';
 877
 878                 // Create CSS
 879                 $css = array_merge(
 880                         $this->_createCSSStyleAlignment($pStyle->getAlignment())
 881                         , $this->_createCSSStyleBorders($pStyle->getBorders())
 882                         , $this->_createCSSStyleFont($pStyle->getFont())
 883                         , $this->_createCSSStyleFill($pStyle->getFill())
 884                 );
 885
 886                 // Return
 887                 return $css;
 888         }
 889
 890         /**
 891          * Create CSS style (PHPExcel_Style_Alignment)
 892          *
 893          * @param       PHPExcel_Style_Alignment                $pStyle                 PHPExcel_Style_Alignment
 894          * @return      array
 895          */
 896         private function _createCSSStyleAlignment(PHPExcel_Style_Alignment $pStyle) {
 897                 // Construct CSS
 898                 $css = array();
 899
 900                 // Create CSS
 901                 $css['vertical-align'] = $this->_mapVAlign($pStyle->getVertical());
 902                 if ($textAlign = $this->_mapHAlign($pStyle->getHorizontal())) {
 903                         $css['text-align'] = $textAlign;
 904                         if(in_array($textAlign,array('left','right')))
 905                                 $css['padding-'.$textAlign] = (string)((int)$pStyle->getIndent() * 9).'px';
 906                 }
 907
 908                 // Return
 909                 return $css;
 910         }
 911
 912         /**
 913          * Create CSS style (PHPExcel_Style_Font)
 914          *
 915          * @param       PHPExcel_Style_Font             $pStyle                 PHPExcel_Style_Font
 916          * @return      array
 917          */
 918         private function _createCSSStyleFont(PHPExcel_Style_Font $pStyle) {
 919                 // Construct CSS
 920                 $css = array();
 921
 922                 // Create CSS
 923                 if ($pStyle->getBold()) {
 924                         $css['font-weight'] = 'bold';
 925                 }
 926                 if ($pStyle->getUnderline() != PHPExcel_Style_Font::UNDERLINE_NONE && $pStyle->getStrikethrough()) {
 927                         $css['text-decoration'] = 'underline line-through';
 928                 } else if ($pStyle->getUnderline() != PHPExcel_Style_Font::UNDERLINE_NONE) {
 929                         $css['text-decoration'] = 'underline';
 930                 } else if ($pStyle->getStrikethrough()) {
 931                         $css['text-decoration'] = 'line-through';
 932                 }
 933                 if ($pStyle->getItalic()) {
 934                         $css['font-style'] = 'italic';
 935                 }
 936
 937                 $css['color']           = '#' . $pStyle->getColor()->getRGB();
 938                 $css['font-family']     = '\'' . $pStyle->getName() . '\'';
 939                 $css['font-size']       = $pStyle->getSize() . 'pt';
 940
 941                 // Return
 942                 return $css;
 943         }
 944
 945         /**
 946          * Create CSS style (PHPExcel_Style_Borders)
 947          *
 948          * @param       PHPExcel_Style_Borders          $pStyle                 PHPExcel_Style_Borders
 949          * @return      array
 950          */
 951         private function _createCSSStyleBorders(PHPExcel_Style_Borders $pStyle) {
 952                 // Construct CSS
 953                 $css = array();
 954
 955                 // Create CSS
 956                 $css['border-bottom']   = $this->_createCSSStyleBorder($pStyle->getBottom());
 957                 $css['border-top']              = $this->_createCSSStyleBorder($pStyle->getTop());
 958                 $css['border-left']             = $this->_createCSSStyleBorder($pStyle->getLeft());
 959                 $css['border-right']    = $this->_createCSSStyleBorder($pStyle->getRight());
 960
 961                 // Return
 962                 return $css;
 963         }
 964
 965         /**
 966          * Create CSS style (PHPExcel_Style_Border)
 967          *
 968          * @param       PHPExcel_Style_Border           $pStyle                 PHPExcel_Style_Border
 969          * @return      string
 970          */
 971         private function _createCSSStyleBorder(PHPExcel_Style_Border $pStyle) {
 972                 // Create CSS
 973 //              $css = $this->_mapBorderStyle($pStyle->getBorderStyle()) . ' #' . $pStyle->getColor()->getRGB();
 974                 //      Create CSS - add !important to non-none border styles for merged cells
 975                 $borderStyle = $this->_mapBorderStyle($pStyle->getBorderStyle());
 976                 $css = $borderStyle . ' #' . $pStyle->getColor()->getRGB() . (($borderStyle == 'none') ? '' : ' !important');
 977
 978                 // Return
 979                 return $css;
 980         }
 981
 982         /**
 983          * Create CSS style (PHPExcel_Style_Fill)
 984          *
 985          * @param       PHPExcel_Style_Fill             $pStyle                 PHPExcel_Style_Fill
 986          * @return      array
 987          */
 988         private function _createCSSStyleFill(PHPExcel_Style_Fill $pStyle) {
 989                 // Construct HTML
 990                 $css = array();
 991
 992                 // Create CSS
 993                 $value = $pStyle->getFillType() == PHPExcel_Style_Fill::FILL_NONE ?
 994                         'white' : '#' . $pStyle->getStartColor()->getRGB();
 995                 $css['background-color'] = $value;
 996
 997                 // Return
 998                 return $css;
 999         }
1000
1001         /**
1002          * Generate HTML footer
1003          */
1004         public function generateHTMLFooter() {
1005                 // Construct HTML
1006                 $html = '';
1007                 $html .= '  </body>' . PHP_EOL;
1008                 $html .= '</html>' . PHP_EOL;
1009
1010                 // Return
1011                 return $html;
1012         }
1013
1014         /**
1015          * Generate table header
1016          *
1017          * @param       PHPExcel_Worksheet      $pSheet         The worksheet for the table we are writing
1018          * @return      string
1019          * @throws      PHPExcel_Writer_Exception
1020          */
1021         private function _generateTableHeader($pSheet) {
1022                 $sheetIndex = $pSheet->getParent()->getIndex($pSheet);
1023
1024                 // Construct HTML
1025                 $html = '';
1026                 $html .= $this->_setMargins($pSheet);
1027
1028                 if (!$this->_useInlineCss) {
1029                         $gridlines = $pSheet->getShowGridlines() ? ' gridlines' : '';
1030                         $html .= '      <table border="0" cellpadding="0" cellspacing="0" id="sheet' . $sheetIndex . '" class="sheet' . $sheetIndex . $gridlines . '">' . PHP_EOL;
1031                 } else {
1032                         $style = isset($this->_cssStyles['table']) ?
1033                                 $this->_assembleCSS($this->_cssStyles['table']) : '';
1034
1035                         if ($this->_isPdf && $pSheet->getShowGridlines()) {
1036                                 $html .= '      <table border="1" cellpadding="1" id="sheet' . $sheetIndex . '" cellspacing="1" style="' . $style . '">' . PHP_EOL;
1037                         } else {
1038                                 $html .= '      <table border="0" cellpadding="1" id="sheet' . $sheetIndex . '" cellspacing="0" style="' . $style . '">' . PHP_EOL;
1039                         }
1040                 }
1041
1042                 // Write <col> elements
1043                 $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($pSheet->getHighestColumn()) - 1;
1044                 $i = -1;
1045                 while($i++ < $highestColumnIndex) {
1046                     if (!$this->_isPdf) {
1047                                 if (!$this->_useInlineCss) {
1048                                         $html .= '              <col class="col' . $i . '">' . PHP_EOL;
1049                                 } else {
1050                                         $style = isset($this->_cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) ?
1051                                                 $this->_assembleCSS($this->_cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) : '';
1052                                         $html .= '              <col style="' . $style . '">' . PHP_EOL;
1053                                 }
1054                         }
1055                 }
1056
1057                 // Return
1058                 return $html;
1059         }
1060
1061         /**
1062          * Generate table footer
1063          *
1064          * @throws      PHPExcel_Writer_Exception
1065          */
1066         private function _generateTableFooter() {
1067                 // Construct HTML
1068                 $html = '';
1069                 $html .= '      </table>' . PHP_EOL;
1070
1071                 // Return
1072                 return $html;
1073         }
1074
1075         /**
1076          * Generate row
1077          *
1078          * @param       PHPExcel_Worksheet      $pSheet                 PHPExcel_Worksheet
1079          * @param       array                           $pValues                Array containing cells in a row
1080          * @param       int                                     $pRow                   Row number (0-based)
1081          * @return      string
1082          * @throws      PHPExcel_Writer_Exception
1083          */
1084         private function _generateRow(PHPExcel_Worksheet $pSheet, $pValues = null, $pRow = 0, $cellType = 'td') {
1085                 if (is_array($pValues)) {
1086                         // Construct HTML
1087                         $html = '';
1088
1089                         // Sheet index
1090                         $sheetIndex = $pSheet->getParent()->getIndex($pSheet);
1091
1092                         // DomPDF and breaks
1093                         if ($this->_isPdf && count($pSheet->getBreaks()) > 0) {
1094                                 $breaks = $pSheet->getBreaks();
1095
1096                                 // check if a break is needed before this row
1097                                 if (isset($breaks['A' . $pRow])) {
1098                                         // close table: </table>
1099                                         $html .= $this->_generateTableFooter();
1100
1101                                         // insert page break
1102                                         $html .= '<div style="page-break-before:always" />';
1103
1104                                         // open table again: <table> + <col> etc.
1105                                         $html .= $this->_generateTableHeader($pSheet);
1106                                 }
1107                         }
1108
1109                         // Write row start
1110                         if (!$this->_useInlineCss) {
1111                                 $html .= '                <tr class="row' . $pRow . '">' . PHP_EOL;
1112                         } else {
1113                                 $style = isset($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow])
1114                                         ? $this->_assembleCSS($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]) : '';
1115
1116                                 $html .= '                <tr style="' . $style . '">' . PHP_EOL;
1117                         }
1118
1119                         // Write cells
1120                         $colNum = 0;
1121                         foreach ($pValues as $cellAddress) {
1122                 $cell = ($cellAddress > '') ? $pSheet->getCell($cellAddress) : '';
1123                                 $coordinate = PHPExcel_Cell::stringFromColumnIndex($colNum) . ($pRow + 1);
1124                                 if (!$this->_useInlineCss) {
1125                                         $cssClass = '';
1126                                         $cssClass = 'column' . $colNum;
1127                                 } else {
1128                                         $cssClass = array();
1129                     if ($cellType == 'th') {
1130                         if (isset($this->_cssStyles['table.sheet' . $sheetIndex . ' th.column' . $colNum])) {
1131                             $this->_cssStyles['table.sheet' . $sheetIndex . ' th.column' . $colNum];
1132                         }
1133                     } else {
1134                         if (isset($this->_cssStyles['table.sheet' . $sheetIndex . ' td.column' . $colNum])) {
1135                             $this->_cssStyles['table.sheet' . $sheetIndex . ' td.column' . $colNum];
1136                         }
1137                     }
1138                                 }
1139                                 $colSpan = 1;
1140                                 $rowSpan = 1;
1141
1142                                 // initialize
1143                                 $cellData = '&nbsp;';
1144
1145                                 // PHPExcel_Cell
1146                                 if ($cell instanceof PHPExcel_Cell) {
1147                                         $cellData = '';
1148                                         if (is_null($cell->getParent())) {
1149                                                 $cell->attach($pSheet);
1150                                         }
1151                                         // Value
1152                                         if ($cell->getValue() instanceof PHPExcel_RichText) {
1153                                                 // Loop through rich text elements
1154                                                 $elements = $cell->getValue()->getRichTextElements();
1155                                                 foreach ($elements as $element) {
1156                                                         // Rich text start?
1157                                                         if ($element instanceof PHPExcel_RichText_Run) {
1158                                                                 $cellData .= '<span style="' . $this->_assembleCSS($this->_createCSSStyleFont($element->getFont())) . '">';
1159
1160                                                                 if ($element->getFont()->getSuperScript()) {
1161                                                                         $cellData .= '<sup>';
1162                                                                 } else if ($element->getFont()->getSubScript()) {
1163                                                                         $cellData .= '<sub>';
1164                                                                 }
1165                                                         }
1166
1167                                                         // Convert UTF8 data to PCDATA
1168                                                         $cellText = $element->getText();
1169                                                         $cellData .= htmlspecialchars($cellText);
1170
1171                                                         if ($element instanceof PHPExcel_RichText_Run) {
1172                                                                 if ($element->getFont()->getSuperScript()) {
1173                                                                         $cellData .= '</sup>';
1174                                                                 } else if ($element->getFont()->getSubScript()) {
1175                                                                         $cellData .= '</sub>';
1176                                                                 }
1177
1178                                                                 $cellData .= '</span>';
1179                                                         }
1180                                                 }
1181                                         } else {
1182                                                 if ($this->_preCalculateFormulas) {
1183                                                         $cellData = PHPExcel_Style_NumberFormat::toFormattedString(
1184                                                                 $cell->getCalculatedValue(),
1185                                                                 $pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getNumberFormat()->getFormatCode(),
1186                                                                 array($this, 'formatColor')
1187                                                         );
1188                                                 } else {
1189                                                         $cellData = PHPExcel_Style_NumberFormat::toFormattedString(
1190                                                                 $cell->getValue(),
1191                                                                 $pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getNumberFormat()->getFormatCode(),
1192                                                                 array($this, 'formatColor')
1193                                                         );
1194                                                 }
1195                                                 $cellData = htmlspecialchars($cellData);
1196                                                 if ($pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getFont()->getSuperScript()) {
1197                                                         $cellData = '<sup>'.$cellData.'</sup>';
1198                                                 } elseif ($pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getFont()->getSubScript()) {
1199                                                         $cellData = '<sub>'.$cellData.'</sub>';
1200                                                 }
1201                                         }
1202
1203                                         // Converts the cell content so that spaces occuring at beginning of each new line are replaced by &nbsp;
1204                                         // Example: "  Hello\n to the world" is converted to "&nbsp;&nbsp;Hello\n&nbsp;to the world"
1205                                         $cellData = preg_replace("/(?m)(?:^|\\G) /", '&nbsp;', $cellData);
1206
1207                                         // convert newline "\n" to '<br>'
1208                                         $cellData = nl2br($cellData);
1209
1210                                         // Extend CSS class?
1211                                         if (!$this->_useInlineCss) {
1212                                                 $cssClass .= ' style' . $cell->getXfIndex();
1213                                                 $cssClass .= ' ' . $cell->getDataType();
1214                                         } else {
1215                         if ($cellType == 'th') {
1216                             if (isset($this->_cssStyles['th.style' . $cell->getXfIndex()])) {
1217                                 $cssClass = array_merge($cssClass, $this->_cssStyles['th.style' . $cell->getXfIndex()]);
1218                             }
1219                         } else {
1220                             if (isset($this->_cssStyles['td.style' . $cell->getXfIndex()])) {
1221                                 $cssClass = array_merge($cssClass, $this->_cssStyles['td.style' . $cell->getXfIndex()]);
1222                             }
1223                         }
1224
1225                                                 // General horizontal alignment: Actual horizontal alignment depends on dataType
1226                                                 $sharedStyle = $pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() );
1227                                                 if ($sharedStyle->getAlignment()->getHorizontal() == PHPExcel_Style_Alignment::HORIZONTAL_GENERAL
1228                                                         && isset($this->_cssStyles['.' . $cell->getDataType()]['text-align']))
1229                                                 {
1230                                                         $cssClass['text-align'] = $this->_cssStyles['.' . $cell->getDataType()]['text-align'];
1231                                                 }
1232                                         }
1233                                 }
1234
1235                                 // Hyperlink?
1236                                 if ($pSheet->hyperlinkExists($coordinate) && !$pSheet->getHyperlink($coordinate)->isInternal()) {
1237                                         $cellData = '<a href="' . htmlspecialchars($pSheet->getHyperlink($coordinate)->getUrl()) . '" title="' . htmlspecialchars($pSheet->getHyperlink($coordinate)->getTooltip()) . '">' . $cellData . '</a>';
1238                                 }
1239
1240                                 // Should the cell be written or is it swallowed by a rowspan or colspan?
1241                                 $writeCell = ! ( isset($this->_isSpannedCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum])
1242                                                         && $this->_isSpannedCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum] );
1243
1244                                 // Colspan and Rowspan
1245                                 $colspan = 1;
1246                                 $rowspan = 1;
1247                                 if (isset($this->_isBaseCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum])) {
1248                                         $spans = $this->_isBaseCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum];
1249                                         $rowSpan = $spans['rowspan'];
1250                                         $colSpan = $spans['colspan'];
1251
1252                                         //      Also apply style from last cell in merge to fix borders -
1253                                         //              relies on !important for non-none border declarations in _createCSSStyleBorder
1254                                         $endCellCoord = PHPExcel_Cell::stringFromColumnIndex($colNum + $colSpan - 1) . ($pRow + $rowSpan);
1255                                         if (!$this->_useInlineCss) {
1256                                                 $cssClass .= ' style' . $pSheet->getCell($endCellCoord)->getXfIndex();
1257                                         }
1258                                 }
1259
1260                                 // Write
1261                                 if ($writeCell) {
1262                                         // Column start
1263                                         $html .= '                      <' . $cellType;
1264                                                 if (!$this->_useInlineCss) {
1265                                                         $html .= ' class="' . $cssClass . '"';
1266                                                 } else {
1267                                                         //** Necessary redundant code for the sake of PHPExcel_Writer_PDF **
1268                                                         // We must explicitly write the width of the <td> element because TCPDF
1269                                                         // does not recognize e.g. <col style="width:42pt">
1270                                                         $width = 0;
1271                                                         $i = $colNum - 1;
1272                                                         $e = $colNum + $colSpan - 1;
1273                                                         while($i++ < $e) {
1274                                                                 if (isset($this->_columnWidths[$sheetIndex][$i])) {
1275                                                                         $width += $this->_columnWidths[$sheetIndex][$i];
1276                                                                 }
1277                                                         }
1278                                                         $cssClass['width'] = $width . 'pt';
1279
1280                                                         // We must also explicitly write the height of the <td> element because TCPDF
1281                                                         // does not recognize e.g. <tr style="height:50pt">
1282                                                         if (isset($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]['height'])) {
1283                                                                 $height = $this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]['height'];
1284                                                                 $cssClass['height'] = $height;
1285                                                         }
1286                                                         //** end of redundant code **
1287
1288                                                         $html .= ' style="' . $this->_assembleCSS($cssClass) . '"';
1289                                                 }
1290                                                 if ($colSpan > 1) {
1291                                                         $html .= ' colspan="' . $colSpan . '"';
1292                                                 }
1293                                                 if ($rowSpan > 1) {
1294                                                         $html .= ' rowspan="' . $rowSpan . '"';
1295                                                 }
1296                                         $html .= '>';
1297
1298                                         // Image?
1299                                         $html .= $this->_writeImageInCell($pSheet, $coordinate);
1300
1301                                         // Chart?
1302                                         if ($this->_includeCharts) {
1303                                                 $html .= $this->_writeChartInCell($pSheet, $coordinate);
1304                                         }
1305
1306                                         // Cell data
1307                                         $html .= $cellData;
1308
1309                                         // Column end
1310                                         $html .= '</'.$cellType.'>' . PHP_EOL;
1311                                 }
1312
1313                                 // Next column
1314                                 ++$colNum;
1315                         }
1316
1317                         // Write row end
1318                         $html .= '                </tr>' . PHP_EOL;
1319
1320                         // Return
1321                         return $html;
1322                 } else {
1323                         throw new PHPExcel_Writer_Exception("Invalid parameters passed.");
1324                 }
1325         }
1326
1327         /**
1328          * Takes array where of CSS properties / values and converts to CSS string
1329          *
1330          * @param array
1331          * @return string
1332          */
1333         private function _assembleCSS($pValue = array())
1334         {
1335                 $pairs = array();
1336                 foreach ($pValue as $property => $value) {
1337                         $pairs[] = $property . ':' . $value;
1338                 }
1339                 $string = implode('; ', $pairs);
1340
1341                 return $string;
1342         }
1343
1344         /**
1345          * Get images root
1346          *
1347          * @return string
1348          */
1349         public function getImagesRoot() {
1350                 return $this->_imagesRoot;
1351         }
1352
1353         /**
1354          * Set images root
1355          *
1356          * @param string $pValue
1357          * @return PHPExcel_Writer_HTML
1358          */
1359         public function setImagesRoot($pValue = '.') {
1360                 $this->_imagesRoot = $pValue;
1361                 return $this;
1362         }
1363
1364         /**
1365          * Get embed images
1366          *
1367          * @return boolean
1368          */
1369         public function getEmbedImages() {
1370                 return $this->_embedImages;
1371         }
1372
1373         /**
1374          * Set embed images
1375          *
1376          * @param boolean $pValue
1377          * @return PHPExcel_Writer_HTML
1378          */
1379         public function setEmbedImages($pValue = '.') {
1380                 $this->_embedImages = $pValue;
1381                 return $this;
1382         }
1383
1384         /**
1385          * Get use inline CSS?
1386          *
1387          * @return boolean
1388          */
1389         public function getUseInlineCss() {
1390                 return $this->_useInlineCss;
1391         }
1392
1393         /**
1394          * Set use inline CSS?
1395          *
1396          * @param boolean $pValue
1397          * @return PHPExcel_Writer_HTML
1398          */
1399         public function setUseInlineCss($pValue = false) {
1400                 $this->_useInlineCss = $pValue;
1401                 return $this;
1402         }
1403
1404         /**
1405          * Add color to formatted string as inline style
1406          *
1407          * @param string $pValue Plain formatted value without color
1408          * @param string $pFormat Format code
1409          * @return string
1410          */
1411         public function formatColor($pValue, $pFormat)
1412         {
1413                 // Color information, e.g. [Red] is always at the beginning
1414                 $color = null; // initialize
1415                 $matches = array();
1416
1417                 $color_regex = '/^\\[[a-zA-Z]+\\]/';
1418                 if (preg_match($color_regex, $pFormat, $matches)) {
1419                         $color = str_replace('[', '', $matches[0]);
1420                         $color = str_replace(']', '', $color);
1421                         $color = strtolower($color);
1422                 }
1423
1424                 // convert to PCDATA
1425                 $value = htmlspecialchars($pValue);
1426
1427                 // color span tag
1428                 if ($color !== null) {
1429                         $value = '<span style="color:' . $color . '">' . $value . '</span>';
1430                 }
1431
1432                 return $value;
1433         }
1434
1435         /**
1436          * Calculate information about HTML colspan and rowspan which is not always the same as Excel's
1437          */
1438         private function _calculateSpans()
1439         {
1440                 // Identify all cells that should be omitted in HTML due to cell merge.
1441                 // In HTML only the upper-left cell should be written and it should have
1442                 //   appropriate rowspan / colspan attribute
1443                 $sheetIndexes = $this->_sheetIndex !== null ?
1444                         array($this->_sheetIndex) : range(0, $this->_phpExcel->getSheetCount() - 1);
1445
1446                 foreach ($sheetIndexes as $sheetIndex) {
1447                         $sheet = $this->_phpExcel->getSheet($sheetIndex);
1448
1449                         $candidateSpannedRow  = array();
1450
1451                         // loop through all Excel merged cells
1452                         foreach ($sheet->getMergeCells() as $cells) {
1453                                 list($cells, ) = PHPExcel_Cell::splitRange($cells);
1454                                 $first = $cells[0];
1455                                 $last  = $cells[1];
1456
1457                                 list($fc, $fr) = PHPExcel_Cell::coordinateFromString($first);
1458                                 $fc = PHPExcel_Cell::columnIndexFromString($fc) - 1;
1459
1460                                 list($lc, $lr) = PHPExcel_Cell::coordinateFromString($last);
1461                                 $lc = PHPExcel_Cell::columnIndexFromString($lc) - 1;
1462
1463                                 // loop through the individual cells in the individual merge
1464                                 $r = $fr - 1;
1465                                 while($r++ < $lr) {
1466                                         // also, flag this row as a HTML row that is candidate to be omitted
1467                                         $candidateSpannedRow[$r] = $r;
1468
1469                                         $c = $fc - 1;
1470                                         while($c++ < $lc) {
1471                                                 if ( !($c == $fc && $r == $fr) ) {
1472                                                         // not the upper-left cell (should not be written in HTML)
1473                                                         $this->_isSpannedCell[$sheetIndex][$r][$c] = array(
1474                                                                 'baseCell' => array($fr, $fc),
1475                                                         );
1476                                                 } else {
1477                                                         // upper-left is the base cell that should hold the colspan/rowspan attribute
1478                                                         $this->_isBaseCell[$sheetIndex][$r][$c] = array(
1479                                                                 'xlrowspan' => $lr - $fr + 1, // Excel rowspan
1480                                                                 'rowspan'   => $lr - $fr + 1, // HTML rowspan, value may change
1481                                                                 'xlcolspan' => $lc - $fc + 1, // Excel colspan
1482                                                                 'colspan'   => $lc - $fc + 1, // HTML colspan, value may change
1483                                                         );
1484                                                 }
1485                                         }
1486                                 }
1487                         }
1488
1489                         // Identify which rows should be omitted in HTML. These are the rows where all the cells
1490                         //   participate in a merge and the where base cells are somewhere above.
1491                         $countColumns = PHPExcel_Cell::columnIndexFromString($sheet->getHighestColumn());
1492                         foreach ($candidateSpannedRow as $rowIndex) {
1493                                 if (isset($this->_isSpannedCell[$sheetIndex][$rowIndex])) {
1494                                         if (count($this->_isSpannedCell[$sheetIndex][$rowIndex]) == $countColumns) {
1495                                                 $this->_isSpannedRow[$sheetIndex][$rowIndex] = $rowIndex;
1496                                         };
1497                                 }
1498                         }
1499
1500                         // For each of the omitted rows we found above, the affected rowspans should be subtracted by 1
1501                         if ( isset($this->_isSpannedRow[$sheetIndex]) ) {
1502                                 foreach ($this->_isSpannedRow[$sheetIndex] as $rowIndex) {
1503                                         $adjustedBaseCells = array();
1504                                         $c = -1;
1505                                         $e = $countColumns - 1;
1506                                         while($c++ < $e) {
1507                                                 $baseCell = $this->_isSpannedCell[$sheetIndex][$rowIndex][$c]['baseCell'];
1508
1509                                                 if ( !in_array($baseCell, $adjustedBaseCells) ) {
1510                                                         // subtract rowspan by 1
1511                                                         --$this->_isBaseCell[$sheetIndex][ $baseCell[0] ][ $baseCell[1] ]['rowspan'];
1512                                                         $adjustedBaseCells[] = $baseCell;
1513                                                 }
1514                                         }
1515                                 }
1516                         }
1517
1518                         // TODO: Same for columns
1519                 }
1520
1521                 // We have calculated the spans
1522                 $this->_spansAreCalculated = true;
1523         }
1524
1525         private function _setMargins(PHPExcel_Worksheet $pSheet) {
1526                 $htmlPage = '@page { ';
1527                 $htmlBody = 'body { ';
1528
1529                 $left = PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getLeft()) . 'in; ';
1530                 $htmlPage .= 'left-margin: ' . $left;
1531                 $htmlBody .= 'left-margin: ' . $left;
1532                 $right = PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getRight()) . 'in; ';
1533                 $htmlPage .= 'right-margin: ' . $right;
1534                 $htmlBody .= 'right-margin: ' . $right;
1535                 $top = PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getTop()) . 'in; ';
1536                 $htmlPage .= 'top-margin: ' . $top;
1537                 $htmlBody .= 'top-margin: ' . $top;
1538                 $bottom = PHPExcel_Shared_String::FormatNumber($pSheet->getPageMargins()->getBottom()) . 'in; ';
1539                 $htmlPage .= 'bottom-margin: ' . $bottom;
1540                 $htmlBody .= 'bottom-margin: ' . $bottom;
1541
1542                 $htmlPage .= "}\n";
1543                 $htmlBody .= "}\n";
1544
1545                 return "<style>\n" . $htmlPage . $htmlBody . "</style>\n";
1546         }
1547
1548 }