ILIAS  eassessment Revision 61809
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HTML.php
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1 <?php
36 class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
42  protected $_phpExcel;
43 
49  private $_sheetIndex = 0;
50 
56  private $_preCalculateFormulas = true;
57 
63  private $_imagesRoot = '.';
64 
70  private $_useInlineCss = false;
71 
77  private $_cssStyles = null;
78 
84  private $_columnWidths = null;
85 
91  private $_defaultFont;
92 
98  private $_spansAreCalculated = false;
99 
105  private $_isSpannedCell = array();
106 
112  private $_isBaseCell = array();
113 
119  private $_isSpannedRow = array();
120 
126  protected $_isPdf = false;
127 
133  private $_generateSheetNavigationBlock = true;
134 
140  public function __construct(PHPExcel $phpExcel) {
141  $this->_phpExcel = $phpExcel;
142  $this->_defaultFont = $this->_phpExcel->getDefaultStyle()->getFont();
143  }
144 
151  public function save($pFilename = null) {
152  // garbage collect
153  $this->_phpExcel->garbageCollect();
154 
155  $saveDebugLog = PHPExcel_Calculation::getInstance()->writeDebugLog;
156  PHPExcel_Calculation::getInstance()->writeDebugLog = 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 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()->writeDebugLog = $saveDebugLog;
188  }
189 
193  private function _mapVAlign($vAlign) {
194  switch ($vAlign) {
195  case PHPExcel_Style_Alignment::VERTICAL_BOTTOM: return 'bottom';
196  case PHPExcel_Style_Alignment::VERTICAL_TOP: return 'top';
197  case PHPExcel_Style_Alignment::VERTICAL_CENTER:
198  case PHPExcel_Style_Alignment::VERTICAL_JUSTIFY: return 'middle';
199  default: return 'baseline';
200  }
201  }
202 
208  private function _mapHAlign($hAlign) {
209  switch ($hAlign) {
210  case PHPExcel_Style_Alignment::HORIZONTAL_GENERAL: return false;
211  case PHPExcel_Style_Alignment::HORIZONTAL_LEFT: return 'left';
212  case PHPExcel_Style_Alignment::HORIZONTAL_RIGHT: return 'right';
213  case PHPExcel_Style_Alignment::HORIZONTAL_CENTER:
214  case PHPExcel_Style_Alignment::HORIZONTAL_CENTER_CONTINUOUS: return 'center';
215  case PHPExcel_Style_Alignment::HORIZONTAL_JUSTIFY: return 'justify';
216  default: return false;
217  }
218  }
219 
223  private function _mapBorderStyle($borderStyle) {
224  switch ($borderStyle) {
225  case PHPExcel_Style_Border::BORDER_NONE: return '0px';
226  case PHPExcel_Style_Border::BORDER_DASHDOT: return '1px dashed';
227  case PHPExcel_Style_Border::BORDER_DASHDOTDOT: return '1px dotted';
228  case PHPExcel_Style_Border::BORDER_DASHED: return '1px dashed';
229  case PHPExcel_Style_Border::BORDER_DOTTED: return '1px dotted';
230  case PHPExcel_Style_Border::BORDER_DOUBLE: return '3px double';
231  case PHPExcel_Style_Border::BORDER_HAIR: return '1px solid';
232  case PHPExcel_Style_Border::BORDER_MEDIUM: return '2px solid';
233  case PHPExcel_Style_Border::BORDER_MEDIUMDASHDOT: return '2px dashed';
234  case PHPExcel_Style_Border::BORDER_MEDIUMDASHDOTDOT: return '2px dotted';
235  case PHPExcel_Style_Border::BORDER_MEDIUMDASHED: return '2px dashed';
236  case PHPExcel_Style_Border::BORDER_SLANTDASHDOT: return '2px dashed';
237  case PHPExcel_Style_Border::BORDER_THICK: return '3px solid';
238  case PHPExcel_Style_Border::BORDER_THIN: return '1px solid';
239  default: return '1px solid'; // map others to thin
240  }
241  }
242 
248  public function getSheetIndex() {
249  return $this->_sheetIndex;
250  }
251 
258  public function setSheetIndex($pValue = 0) {
259  $this->_sheetIndex = $pValue;
260  return $this;
261  }
262 
268  public function getGenerateSheetNavigationBlock() {
269  return $this->_generateSheetNavigationBlock;
270  }
271 
278  public function setGenerateSheetNavigationBlock($pValue = true) {
279  $this->_generateSheetNavigationBlock = (bool) $pValue;
280  return $this;
281  }
282 
286  public function writeAllSheets() {
287  $this->_sheetIndex = null;
288  return $this;
289  }
290 
298  public function generateHTMLHeader($pIncludeStyles = false) {
299  // PHPExcel object known?
300  if (is_null($this->_phpExcel)) {
301  throw new Exception('Internal PHPExcel object not set to an instance of an object.');
302  }
303 
304  // Construct HTML
305  $html = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">' . PHP_EOL;
306  $html .= '<!-- Generated by PHPExcel - http://www.phpexcel.net -->' . PHP_EOL;
307  $html .= '<html>' . PHP_EOL;
308  $html .= ' <head>' . PHP_EOL;
309  $html .= ' <meta http-equiv="Content-Type" content="text/html; charset=utf-8">' . PHP_EOL;
310  $html .= ' <title>' . htmlspecialchars($this->_phpExcel->getProperties()->getTitle()) . '</title>' . PHP_EOL;
311  if ($pIncludeStyles) {
312  $html .= $this->generateStyles(true);
313  }
314  $html .= ' </head>' . PHP_EOL;
315  $html .= '' . PHP_EOL;
316  $html .= ' <body>' . PHP_EOL;
317 
318  // Return
319  return $html;
320  }
321 
328  public function generateSheetData() {
329  // PHPExcel object known?
330  if (is_null($this->_phpExcel)) {
331  throw new Exception('Internal PHPExcel object not set to an instance of an object.');
332  }
333 
334  // Ensure that Spans have been calculated?
335  if (!$this->_spansAreCalculated) {
336  $this->_calculateSpans();
337  }
338 
339  // Fetch sheets
340  $sheets = array();
341  if (is_null($this->_sheetIndex)) {
342  $sheets = $this->_phpExcel->getAllSheets();
343  } else {
344  $sheets[] = $this->_phpExcel->getSheet($this->_sheetIndex);
345  }
346 
347  // Construct HTML
348  $html = '';
349 
350  // Loop all sheets
351  $sheetId = 0;
352  foreach ($sheets as $sheet) {
353  // Write table header
354  $html .= $this->_generateTableHeader($sheet);
355 
356  // Get worksheet dimension
357  $dimension = explode(':', $sheet->calculateWorksheetDimension());
358  $dimension[0] = PHPExcel_Cell::coordinateFromString($dimension[0]);
359  $dimension[0][0] = PHPExcel_Cell::columnIndexFromString($dimension[0][0]) - 1;
360  $dimension[1] = PHPExcel_Cell::coordinateFromString($dimension[1]);
361  $dimension[1][0] = PHPExcel_Cell::columnIndexFromString($dimension[1][0]) - 1;
362 
363  // row min,max
364  $rowMin = $dimension[0][1];
365  $rowMax = $dimension[1][1];
366 
367  // calculate start of <tbody>, <thead>
368  $tbodyStart = $rowMin;
369  $tbodyEnd = $rowMax;
370  $theadStart = $theadEnd = 0; // default: no <thead> no </thead>
371  if ($sheet->getPageSetup()->isRowsToRepeatAtTopSet()) {
372  $rowsToRepeatAtTop = $sheet->getPageSetup()->getRowsToRepeatAtTop();
373 
374  // we can only support repeating rows that start at top row
375  if ($rowsToRepeatAtTop[0] == 1) {
376  $theadStart = $rowsToRepeatAtTop[0];
377  $theadEnd = $rowsToRepeatAtTop[1];
378  $tbodyStart = $rowsToRepeatAtTop[1] + 1;
379  }
380  }
381 
382  // Loop through cells
383  $row = $rowMin-1;
384  while($row++ < $rowMax) {
385  // <thead> ?
386  if ($row == $theadStart) {
387  $html .= ' <thead>' . PHP_EOL;
388  }
389 
390  // <tbody> ?
391  if ($row == $tbodyStart) {
392  $html .= ' <tbody>' . PHP_EOL;
393  }
394 
395  // Write row if there are HTML table cells in it
396  if ( !isset($this->_isSpannedRow[$sheet->getParent()->getIndex($sheet)][$row]) ) {
397  // Start a new rowData
398  $rowData = array();
399  // Loop through columns
400  $column = $dimension[0][0] - 1;
401  while($column++ < $dimension[1][0]) {
402  // Cell exists?
403  if ($sheet->cellExistsByColumnAndRow($column, $row)) {
404  $rowData[$column] = $sheet->getCellByColumnAndRow($column, $row);
405  } else {
406  $rowData[$column] = '';
407  }
408  }
409  $html .= $this->_generateRow($sheet, $rowData, $row - 1);
410  }
411 
412  // </thead> ?
413  if ($row == $theadEnd) {
414  $html .= ' </thead>' . PHP_EOL;
415  }
416 
417  // </tbody> ?
418  if ($row == $tbodyEnd) {
419  $html .= ' </tbody>' . PHP_EOL;
420  }
421  }
422 
423  // Write table footer
424  $html .= $this->_generateTableFooter();
425 
426  // Writing PDF?
427  if ($this->_isPdf) {
428  if (is_null($this->_sheetIndex) && $sheetId + 1 < $this->_phpExcel->getSheetCount()) {
429  $html .= '<div style="page-break-before:always" />';
430  }
431  }
432 
433  // Next sheet
434  ++$sheetId;
435  }
436 
437  // Return
438  return $html;
439  }
440 
447  public function generateNavigation()
448  {
449  // PHPExcel object known?
450  if (is_null($this->_phpExcel)) {
451  throw new Exception('Internal PHPExcel object not set to an instance of an object.');
452  }
453 
454  // Fetch sheets
455  $sheets = array();
456  if (is_null($this->_sheetIndex)) {
457  $sheets = $this->_phpExcel->getAllSheets();
458  } else {
459  $sheets[] = $this->_phpExcel->getSheet($this->_sheetIndex);
460  }
461 
462  // Construct HTML
463  $html = '';
464 
465  // Only if there are more than 1 sheets
466  if (count($sheets) > 1) {
467  // Loop all sheets
468  $sheetId = 0;
469 
470  $html .= '<ul class="navigation">' . PHP_EOL;
471 
472  foreach ($sheets as $sheet) {
473  $html .= ' <li class="sheet' . $sheetId . '"><a href="#sheet' . $sheetId . '">' . $sheet->getTitle() . '</a></li>' . PHP_EOL;
474  ++$sheetId;
475  }
476 
477  $html .= '</ul>' . PHP_EOL;
478  }
479 
480  return $html;
481  }
482 
491  private function _writeImageTagInCell(PHPExcel_Worksheet $pSheet, $coordinates) {
492  // Construct HTML
493  $html = '';
494 
495  // Write images
496  foreach ($pSheet->getDrawingCollection() as $drawing) {
497  if ($drawing instanceof PHPExcel_Worksheet_Drawing) {
498  if ($drawing->getCoordinates() == $coordinates) {
499  $filename = $drawing->getPath();
500 
501  // Strip off eventual '.'
502  if (substr($filename, 0, 1) == '.') {
503  $filename = substr($filename, 1);
504  }
505 
506  // Prepend images root
507  $filename = $this->getImagesRoot() . $filename;
508 
509  // Strip off eventual '.'
510  if (substr($filename, 0, 1) == '.' && substr($filename, 0, 2) != './') {
511  $filename = substr($filename, 1);
512  }
513 
514  // Convert UTF8 data to PCDATA
515  $filename = htmlspecialchars($filename);
516 
517  $html .= PHP_EOL;
518  $html .= ' <img style="position: relative; left: ' . $drawing->getOffsetX() . 'px; top: ' . $drawing->getOffsetY() . 'px; width: ' . $drawing->getWidth() . 'px; height: ' . $drawing->getHeight() . 'px;" src="' . $filename . '" border="0" width="' . $drawing->getWidth() . '" height="' . $drawing->getHeight() . '" />' . PHP_EOL;
519  }
520  }
521  }
522 
523  // Return
524  return $html;
525  }
526 
534  public function generateStyles($generateSurroundingHTML = true) {
535  // PHPExcel object known?
536  if (is_null($this->_phpExcel)) {
537  throw new Exception('Internal PHPExcel object not set to an instance of an object.');
538  }
539 
540  // Build CSS
541  $css = $this->buildCSS($generateSurroundingHTML);
542 
543  // Construct HTML
544  $html = '';
545 
546  // Start styles
547  if ($generateSurroundingHTML) {
548  $html .= ' <style type="text/css">' . PHP_EOL;
549  $html .= ' html { ' . $this->_assembleCSS($css['html']) . ' }' . PHP_EOL;
550  }
551 
552  // Write all other styles
553  foreach ($css as $styleName => $styleDefinition) {
554  if ($styleName != 'html') {
555  $html .= ' ' . $styleName . ' { ' . $this->_assembleCSS($styleDefinition) . ' }' . PHP_EOL;
556  }
557  }
558 
559  // End styles
560  if ($generateSurroundingHTML) {
561  $html .= ' </style>' . PHP_EOL;
562  }
563 
564  // Return
565  return $html;
566  }
567 
575  public function buildCSS($generateSurroundingHTML = true) {
576  // PHPExcel object known?
577  if (is_null($this->_phpExcel)) {
578  throw new Exception('Internal PHPExcel object not set to an instance of an object.');
579  }
580 
581  // Cached?
582  if (!is_null($this->_cssStyles)) {
583  return $this->_cssStyles;
584  }
585 
586  // Ensure that spans have been calculated
587  if (!$this->_spansAreCalculated) {
588  $this->_calculateSpans();
589  }
590 
591  // Construct CSS
592  $css = array();
593 
594  // Start styles
595  if ($generateSurroundingHTML) {
596  // html { }
597  $css['html']['font-family'] = 'Calibri, Arial, Helvetica, sans-serif';
598  $css['html']['font-size'] = '11pt';
599  $css['html']['background-color'] = 'white';
600  }
601 
602 
603  // table { }
604  $css['table']['border-collapse'] = 'collapse';
605  $css['table']['page-break-after'] = 'always';
606 
607  // .gridlines td { }
608  $css['.gridlines td']['border'] = '1px dotted black';
609 
610  // .b {}
611  $css['.b']['text-align'] = 'center'; // BOOL
612 
613  // .e {}
614  $css['.e']['text-align'] = 'center'; // ERROR
615 
616  // .f {}
617  $css['.f']['text-align'] = 'right'; // FORMULA
618 
619  // .inlineStr {}
620  $css['.inlineStr']['text-align'] = 'left'; // INLINE
621 
622  // .n {}
623  $css['.n']['text-align'] = 'right'; // NUMERIC
624 
625  // .s {}
626  $css['.s']['text-align'] = 'left'; // STRING
627 
628  // Calculate cell style hashes
629  foreach ($this->_phpExcel->getCellXfCollection() as $index => $style) {
630  $css['td.style' . $index] = $this->_createCSSStyle( $style );
631  }
632 
633  // Fetch sheets
634  $sheets = array();
635  if (is_null($this->_sheetIndex)) {
636  $sheets = $this->_phpExcel->getAllSheets();
637  } else {
638  $sheets[] = $this->_phpExcel->getSheet($this->_sheetIndex);
639  }
640 
641  // Build styles per sheet
642  foreach ($sheets as $sheet) {
643  // Calculate hash code
644  $sheetIndex = $sheet->getParent()->getIndex($sheet);
645 
646  // Build styles
647  // Calculate column widths
648  $sheet->calculateColumnWidths();
649 
650  // col elements, initialize
651  $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($sheet->getHighestColumn()) - 1;
652  $column = -1;
653  while($column++ < $highestColumnIndex) {
654  $this->_columnWidths[$sheetIndex][$column] = 42; // approximation
655  $css['table.sheet' . $sheetIndex . ' col.col' . $column]['width'] = '42pt';
656  }
657 
658  // col elements, loop through columnDimensions and set width
659  foreach ($sheet->getColumnDimensions() as $columnDimension) {
660  if (($width = PHPExcel_Shared_Drawing::cellDimensionToPixels($columnDimension->getWidth(), $this->_defaultFont)) >= 0) {
661  $width = PHPExcel_Shared_Drawing::pixelsToPoints($width);
662  $column = PHPExcel_Cell::columnIndexFromString($columnDimension->getColumnIndex()) - 1;
663  $this->_columnWidths[$sheetIndex][$column] = $width;
664  $css['table.sheet' . $sheetIndex . ' col.col' . $column]['width'] = $width . 'pt';
665 
666  if ($columnDimension->getVisible() === false) {
667  $css['table.sheet' . $sheetIndex . ' col.col' . $column]['visibility'] = 'collapse';
668  $css['table.sheet' . $sheetIndex . ' col.col' . $column]['*display'] = 'none'; // target IE6+7
669  }
670  }
671  }
672 
673  // Default row height
674  $rowDimension = $sheet->getDefaultRowDimension();
675 
676  // table.sheetN tr { }
677  $css['table.sheet' . $sheetIndex . ' tr'] = array();
678 
679  if ($rowDimension->getRowHeight() == -1) {
680  $pt_height = PHPExcel_Shared_Font::getDefaultRowHeightByFont($this->_phpExcel->getDefaultStyle()->getFont());
681  } else {
682  $pt_height = $rowDimension->getRowHeight();
683  }
684  $css['table.sheet' . $sheetIndex . ' tr']['height'] = $pt_height . 'pt';
685  if ($rowDimension->getVisible() === false) {
686  $css['table.sheet' . $sheetIndex . ' tr']['display'] = 'none';
687  $css['table.sheet' . $sheetIndex . ' tr']['visibility'] = 'hidden';
688  }
689 
690  // Calculate row heights
691  foreach ($sheet->getRowDimensions() as $rowDimension) {
692  $row = $rowDimension->getRowIndex() - 1;
693 
694  // table.sheetN tr.rowYYYYYY { }
695  $css['table.sheet' . $sheetIndex . ' tr.row' . $row] = array();
696 
697  if ($rowDimension->getRowHeight() == -1) {
698  $pt_height = PHPExcel_Shared_Font::getDefaultRowHeightByFont($this->_phpExcel->getDefaultStyle()->getFont());
699  } else {
700  $pt_height = $rowDimension->getRowHeight();
701  }
702  $css['table.sheet' . $sheetIndex . ' tr.row' . $row]['height'] = $pt_height . 'pt';
703  if ($rowDimension->getVisible() === false) {
704  $css['table.sheet' . $sheetIndex . ' tr.row' . $row]['display'] = 'none';
705  $css['table.sheet' . $sheetIndex . ' tr.row' . $row]['visibility'] = 'hidden';
706  }
707  }
708  }
709 
710  // Cache
711  if (is_null($this->_cssStyles)) {
712  $this->_cssStyles = $css;
713  }
714 
715  // Return
716  return $css;
717  }
718 
725  private function _createCSSStyle(PHPExcel_Style $pStyle) {
726  // Construct CSS
727  $css = '';
728 
729  // Create CSS
730  $css = array_merge(
731  $this->_createCSSStyleAlignment($pStyle->getAlignment())
732  , $this->_createCSSStyleBorders($pStyle->getBorders())
733  , $this->_createCSSStyleFont($pStyle->getFont())
734  , $this->_createCSSStyleFill($pStyle->getFill())
735  );
736 
737  // Return
738  return $css;
739  }
740 
747  private function _createCSSStyleAlignment(PHPExcel_Style_Alignment $pStyle) {
748  // Construct CSS
749  $css = array();
750 
751  // Create CSS
752  $css['vertical-align'] = $this->_mapVAlign($pStyle->getVertical());
753  if ($textAlign = $this->_mapHAlign($pStyle->getHorizontal())) {
754  $css['text-align'] = $textAlign;
755  }
756 
757  // Return
758  return $css;
759  }
760 
767  private function _createCSSStyleFont(PHPExcel_Style_Font $pStyle) {
768  // Construct CSS
769  $css = array();
770 
771  // Create CSS
772  if ($pStyle->getBold()) {
773  $css['font-weight'] = 'bold';
774  }
775  if ($pStyle->getUnderline() != PHPExcel_Style_Font::UNDERLINE_NONE && $pStyle->getStrikethrough()) {
776  $css['text-decoration'] = 'underline line-through';
777  } else if ($pStyle->getUnderline() != PHPExcel_Style_Font::UNDERLINE_NONE) {
778  $css['text-decoration'] = 'underline';
779  } else if ($pStyle->getStrikethrough()) {
780  $css['text-decoration'] = 'line-through';
781  }
782  if ($pStyle->getItalic()) {
783  $css['font-style'] = 'italic';
784  }
785 
786  $css['color'] = '#' . $pStyle->getColor()->getRGB();
787  $css['font-family'] = '\'' . $pStyle->getName() . '\'';
788  $css['font-size'] = $pStyle->getSize() . 'pt';
789 
790  // Return
791  return $css;
792  }
793 
800  private function _createCSSStyleBorders(PHPExcel_Style_Borders $pStyle) {
801  // Construct CSS
802  $css = array();
803 
804  // Create CSS
805  $css['border-bottom'] = $this->_createCSSStyleBorder($pStyle->getBottom());
806  $css['border-top'] = $this->_createCSSStyleBorder($pStyle->getTop());
807  $css['border-left'] = $this->_createCSSStyleBorder($pStyle->getLeft());
808  $css['border-right'] = $this->_createCSSStyleBorder($pStyle->getRight());
809 
810  // Return
811  return $css;
812  }
813 
820  private function _createCSSStyleBorder(PHPExcel_Style_Border $pStyle) {
821  // Construct HTML
822  $css = '';
823 
824  // Create CSS
825  $css .= $this->_mapBorderStyle($pStyle->getBorderStyle()) . ' #' . $pStyle->getColor()->getRGB();
826 
827  // Return
828  return $css;
829  }
830 
837  private function _createCSSStyleFill(PHPExcel_Style_Fill $pStyle) {
838  // Construct HTML
839  $css = array();
840 
841  // Create CSS
842  $value = $pStyle->getFillType() == PHPExcel_Style_Fill::FILL_NONE ?
843  'white' : '#' . $pStyle->getStartColor()->getRGB();
844  $css['background-color'] = $value;
845 
846  // Return
847  return $css;
848  }
849 
853  public function generateHTMLFooter() {
854  // Construct HTML
855  $html = '';
856  $html .= ' </body>' . PHP_EOL;
857  $html .= '</html>' . PHP_EOL;
858 
859  // Return
860  return $html;
861  }
862 
870  private function _generateTableHeader($pSheet) {
871  $sheetIndex = $pSheet->getParent()->getIndex($pSheet);
872 
873  // Construct HTML
874  $html = '';
875 
876  if (!$this->_useInlineCss) {
877  $gridlines = $pSheet->getShowGridLines() ? ' gridlines' : '';
878  $html .= ' <table border="0" cellpadding="0" cellspacing="0" id="sheet' . $sheetIndex . '" class="sheet' . $sheetIndex . $gridlines . '">' . PHP_EOL;
879  } else {
880  $style = isset($this->_cssStyles['table']) ?
881  $this->_assembleCSS($this->_cssStyles['table']) : '';
882 
883  if ($this->_isPdf && $pSheet->getShowGridLines()) {
884  $html .= ' <table border="1" cellpadding="1" id="sheet' . $sheetIndex . '" cellspacing="4" style="' . $style . '">' . PHP_EOL;
885  } else {
886  $html .= ' <table border="0" cellpadding="1" id="sheet' . $sheetIndex . '" cellspacing="4" style="' . $style . '">' . PHP_EOL;
887  }
888  }
889 
890  // Write <col> elements
891  $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($pSheet->getHighestColumn()) - 1;
892  $i = -1;
893  while($i++ < $highestColumnIndex) {
894  if (!$this->_useInlineCss) {
895  $html .= ' <col class="col' . $i . '">' . PHP_EOL;
896  } else {
897  $style = isset($this->_cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) ?
898  $this->_assembleCSS($this->_cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) : '';
899  $html .= ' <col style="' . $style . '">' . PHP_EOL;
900  }
901  }
902 
903  // Return
904  return $html;
905  }
906 
912  private function _generateTableFooter() {
913  // Construct HTML
914  $html = '';
915  $html .= ' </table>' . PHP_EOL;
916 
917  // Return
918  return $html;
919  }
920 
930  private function _generateRow(PHPExcel_Worksheet $pSheet, $pValues = null, $pRow = 0) {
931  if (is_array($pValues)) {
932  // Construct HTML
933  $html = '';
934 
935  // Sheet index
936  $sheetIndex = $pSheet->getParent()->getIndex($pSheet);
937 
938  // DomPDF and breaks
939  if ($this->_isPdf && count($pSheet->getBreaks()) > 0) {
940  $breaks = $pSheet->getBreaks();
941 
942  // check if a break is needed before this row
943  if (isset($breaks['A' . $pRow])) {
944  // close table: </table>
945  $html .= $this->_generateTableFooter();
946 
947  // insert page break
948  $html .= '<div style="page-break-before:always" />';
949 
950  // open table again: <table> + <col> etc.
951  $html .= $this->_generateTableHeader($pSheet);
952  }
953  }
954 
955  // Write row start
956  if (!$this->_useInlineCss) {
957  $html .= ' <tr class="row' . $pRow . '">' . PHP_EOL;
958  } else {
959  $style = isset($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow])
960  ? $this->_assembleCSS($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]) : '';
961 
962  $html .= ' <tr style="' . $style . '">' . PHP_EOL;
963  }
964 
965  // Write cells
966  $colNum = 0;
967  foreach ($pValues as $cell) {
968  $coordinate = PHPExcel_Cell::stringFromColumnIndex($colNum) . ($pRow + 1);
969 
970  if (!$this->_useInlineCss) {
971  $cssClass = '';
972  $cssClass = 'column' . $colNum;
973  } else {
974  $cssClass = array();
975  if (isset($this->_cssStyles['table.sheet' . $sheetIndex . ' td.column' . $colNum])) {
976  $this->_cssStyles['table.sheet' . $sheetIndex . ' td.column' . $colNum];
977  }
978  }
979  $colSpan = 1;
980  $rowSpan = 1;
981 
982  // initialize
983  $cellData = '';
984 
985  // PHPExcel_Cell
986  if ($cell instanceof PHPExcel_Cell) {
987  if (is_null($cell->getParent())) {
988  $cell->attach($pSheet);
989  }
990  // Value
991  if ($cell->getValue() instanceof PHPExcel_RichText) {
992  // Loop through rich text elements
993  $elements = $cell->getValue()->getRichTextElements();
994  foreach ($elements as $element) {
995  // Rich text start?
996  if ($element instanceof PHPExcel_RichText_Run) {
997  $cellData .= '<span style="' . $this->_assembleCSS($this->_createCSSStyleFont($element->getFont())) . '">';
998 
999  if ($element->getFont()->getSuperScript()) {
1000  $cellData .= '<sup>';
1001  } else if ($element->getFont()->getSubScript()) {
1002  $cellData .= '<sub>';
1003  }
1004  }
1005 
1006  // Convert UTF8 data to PCDATA
1007  $cellText = $element->getText();
1008  $cellData .= htmlspecialchars($cellText);
1009 
1010  if ($element instanceof PHPExcel_RichText_Run) {
1011  if ($element->getFont()->getSuperScript()) {
1012  $cellData .= '</sup>';
1013  } else if ($element->getFont()->getSubScript()) {
1014  $cellData .= '</sub>';
1015  }
1016 
1017  $cellData .= '</span>';
1018  }
1019  }
1020  } else {
1021  if ($this->_preCalculateFormulas) {
1022  $cellData = PHPExcel_Style_NumberFormat::toFormattedString(
1023  $cell->getCalculatedValue(),
1024  $pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getNumberFormat()->getFormatCode(),
1025  array($this, 'formatColor')
1026  );
1027  } else {
1028  $cellData = PHPExcel_Style_NumberFormat::ToFormattedString(
1029  $cell->getValue(),
1030  $pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getNumberFormat()->getFormatCode(),
1031  array($this, 'formatColor')
1032  );
1033  }
1034  if ($pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getFont()->getSuperScript()) {
1035  $cellData = '<sup>'.$cellData.'</sup>';
1036  } elseif ($pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() )->getFont()->getSubScript()) {
1037  $cellData = '<sub>'.$cellData.'</sub>';
1038  }
1039  }
1040 
1041  // Converts the cell content so that spaces occuring at beginning of each new line are replaced by &nbsp;
1042  // Example: " Hello\n to the world" is converted to "&nbsp;&nbsp;Hello\n&nbsp;to the world"
1043  $cellData = preg_replace("/(?m)(?:^|\\G) /", '&nbsp;', $cellData);
1044 
1045  // convert newline "\n" to '<br>'
1046  $cellData = nl2br($cellData);
1047 
1048  // Extend CSS class?
1049  if (!$this->_useInlineCss) {
1050  $cssClass .= ' style' . $cell->getXfIndex();
1051  $cssClass .= ' ' . $cell->getDataType();
1052  } else {
1053  if (isset($this->_cssStyles['td.style' . $cell->getXfIndex()])) {
1054  $cssClass = array_merge($cssClass, $this->_cssStyles['td.style' . $cell->getXfIndex()]);
1055  }
1056 
1057  // General horizontal alignment: Actual horizontal alignment depends on dataType
1058  $sharedStyle = $pSheet->getParent()->getCellXfByIndex( $cell->getXfIndex() );
1059  if ($sharedStyle->getAlignment()->getHorizontal() == PHPExcel_Style_Alignment::HORIZONTAL_GENERAL
1060  && isset($this->_cssStyles['.' . $cell->getDataType()]['text-align']))
1061  {
1062  $cssClass['text-align'] = $this->_cssStyles['.' . $cell->getDataType()]['text-align'];
1063  }
1064  }
1065  }
1066 
1067  // Hyperlink?
1068  if ($pSheet->hyperlinkExists($coordinate) && !$pSheet->getHyperlink($coordinate)->isInternal()) {
1069  $cellData = '<a href="' . htmlspecialchars($pSheet->getHyperlink($coordinate)->getUrl()) . '" title="' . htmlspecialchars($pSheet->getHyperlink($coordinate)->getTooltip()) . '">' . $cellData . '</a>';
1070  }
1071 
1072  // Should the cell be written or is it swallowed by a rowspan or colspan?
1073  $writeCell = ! ( isset($this->_isSpannedCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum])
1074  && $this->_isSpannedCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum] );
1075 
1076  // Colspan and Rowspan
1077  $colspan = 1;
1078  $rowspan = 1;
1079  if (isset($this->_isBaseCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum])) {
1080  $spans = $this->_isBaseCell[$pSheet->getParent()->getIndex($pSheet)][$pRow + 1][$colNum];
1081  $rowSpan = $spans['rowspan'];
1082  $colSpan = $spans['colspan'];
1083  }
1084 
1085  // Write
1086  if ($writeCell) {
1087  // Column start
1088  $html .= ' <td';
1089  if (!$this->_useInlineCss) {
1090  $html .= ' class="' . $cssClass . '"';
1091  } else {
1092  //** Necessary redundant code for the sake of PHPExcel_Writer_PDF **
1093  // We must explicitly write the width of the <td> element because TCPDF
1094  // does not recognize e.g. <col style="width:42pt">
1095  $width = 0;
1096  $i = $colNum - 1;
1097  $e = $colNum + $colSpan - 1;
1098  while($i++ < $e) {
1099  if (isset($this->_columnWidths[$sheetIndex][$i])) {
1100  $width += $this->_columnWidths[$sheetIndex][$i];
1101  }
1102  }
1103  $cssClass['width'] = $width . 'pt';
1104 
1105  // We must also explicitly write the height of the <td> element because TCPDF
1106  // does not recognize e.g. <tr style="height:50pt">
1107  if (isset($this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]['height'])) {
1108  $height = $this->_cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]['height'];
1109  $cssClass['height'] = $height;
1110  }
1111  //** end of redundant code **
1112 
1113  $html .= ' style="' . $this->_assembleCSS($cssClass) . '"';
1114  }
1115  if ($colSpan > 1) {
1116  $html .= ' colspan="' . $colSpan . '"';
1117  }
1118  if ($rowSpan > 1) {
1119  $html .= ' rowspan="' . $rowSpan . '"';
1120  }
1121  $html .= '>';
1122 
1123  // Image?
1124  $html .= $this->_writeImageTagInCell($pSheet, $coordinate);
1125 
1126  // Cell data
1127  $html .= $cellData;
1128 
1129  // Column end
1130  $html .= '</td>' . PHP_EOL;
1131  }
1132 
1133  // Next column
1134  ++$colNum;
1135  }
1136 
1137  // Write row end
1138  $html .= ' </tr>' . PHP_EOL;
1139 
1140  // Return
1141  return $html;
1142  } else {
1143  throw new Exception("Invalid parameters passed.");
1144  }
1145  }
1146 
1153  private function _assembleCSS($pValue = array())
1154  {
1155  $pairs = array();
1156  foreach ($pValue as $property => $value) {
1157  $pairs[] = $property . ':' . $value;
1158  }
1159  $string = implode('; ', $pairs);
1160 
1161  return $string;
1162  }
1163 
1169  public function getPreCalculateFormulas() {
1170  return $this->_preCalculateFormulas;
1171  }
1172 
1179  public function setPreCalculateFormulas($pValue = true) {
1180  $this->_preCalculateFormulas = $pValue;
1181  return $this;
1182  }
1183 
1189  public function getImagesRoot() {
1190  return $this->_imagesRoot;
1191  }
1192 
1199  public function setImagesRoot($pValue = '.') {
1200  $this->_imagesRoot = $pValue;
1201  return $this;
1202  }
1203 
1209  public function getUseInlineCss() {
1210  return $this->_useInlineCss;
1211  }
1212 
1219  public function setUseInlineCss($pValue = false) {
1220  $this->_useInlineCss = $pValue;
1221  return $this;
1222  }
1223 
1231  public function formatColor($pValue, $pFormat)
1232  {
1233  // Color information, e.g. [Red] is always at the beginning
1234  $color = null; // initialize
1235  $matches = array();
1236 
1237  $color_regex = '/^\\[[a-zA-Z]+\\]/';
1238  if (preg_match($color_regex, $pFormat, $matches)) {
1239  $color = str_replace('[', '', $matches[0]);
1240  $color = str_replace(']', '', $color);
1241  $color = strtolower($color);
1242  }
1243 
1244  // convert to PCDATA
1245  $value = htmlspecialchars($pValue);
1246 
1247  // color span tag
1248  if ($color !== null) {
1249  $value = '<span style="color:' . $color . '">' . $value . '</span>';
1250  }
1251 
1252  return $value;
1253  }
1254 
1258  private function _calculateSpans()
1259  {
1260  // Identify all cells that should be omitted in HTML due to cell merge.
1261  // In HTML only the upper-left cell should be written and it should have
1262  // appropriate rowspan / colspan attribute
1263  $sheetIndexes = $this->_sheetIndex !== null ?
1264  array($this->_sheetIndex) : range(0, $this->_phpExcel->getSheetCount() - 1);
1265 
1266  foreach ($sheetIndexes as $sheetIndex) {
1267  $sheet = $this->_phpExcel->getSheet($sheetIndex);
1268 
1269  $candidateSpannedRow = array();
1270 
1271  // loop through all Excel merged cells
1272  foreach ($sheet->getMergeCells() as $cells) {
1273  list($cells, ) = PHPExcel_Cell::splitRange($cells);
1274  $first = $cells[0];
1275  $last = $cells[1];
1276 
1277  list($fc, $fr) = PHPExcel_Cell::coordinateFromString($first);
1278  $fc = PHPExcel_Cell::columnIndexFromString($fc) - 1;
1279 
1280  list($lc, $lr) = PHPExcel_Cell::coordinateFromString($last);
1281  $lc = PHPExcel_Cell::columnIndexFromString($lc) - 1;
1282 
1283  // loop through the individual cells in the individual merge
1284  $r = $fr - 1;
1285  while($r++ < $lr) {
1286  // also, flag this row as a HTML row that is candidate to be omitted
1287  $candidateSpannedRow[$r] = $r;
1288 
1289  $c = $fc - 1;
1290  while($c++ < $lc) {
1291  if ( !($c == $fc && $r == $fr) ) {
1292  // not the upper-left cell (should not be written in HTML)
1293  $this->_isSpannedCell[$sheetIndex][$r][$c] = array(
1294  'baseCell' => array($fr, $fc),
1295  );
1296  } else {
1297  // upper-left is the base cell that should hold the colspan/rowspan attribute
1298  $this->_isBaseCell[$sheetIndex][$r][$c] = array(
1299  'xlrowspan' => $lr - $fr + 1, // Excel rowspan
1300  'rowspan' => $lr - $fr + 1, // HTML rowspan, value may change
1301  'xlcolspan' => $lc - $fc + 1, // Excel colspan
1302  'colspan' => $lc - $fc + 1, // HTML colspan, value may change
1303  );
1304  }
1305  }
1306  }
1307  }
1308 
1309  // Identify which rows should be omitted in HTML. These are the rows where all the cells
1310  // participate in a merge and the where base cells are somewhere above.
1311  $countColumns = PHPExcel_Cell::columnIndexFromString($sheet->getHighestColumn());
1312  foreach ($candidateSpannedRow as $rowIndex) {
1313  if (isset($this->_isSpannedCell[$sheetIndex][$rowIndex])) {
1314  if (count($this->_isSpannedCell[$sheetIndex][$rowIndex]) == $countColumns) {
1315  $this->_isSpannedRow[$sheetIndex][$rowIndex] = $rowIndex;
1316  };
1317  }
1318  }
1319 
1320  // For each of the omitted rows we found above, the affected rowspans should be subtracted by 1
1321  if ( isset($this->_isSpannedRow[$sheetIndex]) ) {
1322  foreach ($this->_isSpannedRow[$sheetIndex] as $rowIndex) {
1323  $adjustedBaseCells = array();
1324  $c = -1;
1325  $e = $countColumns - 1;
1326  while($c++ < $e) {
1327  $baseCell = $this->_isSpannedCell[$sheetIndex][$rowIndex][$c]['baseCell'];
1328 
1329  if ( !in_array($baseCell, $adjustedBaseCells) ) {
1330  // subtract rowspan by 1
1331  --$this->_isBaseCell[$sheetIndex][ $baseCell[0] ][ $baseCell[1] ]['rowspan'];
1332  $adjustedBaseCells[] = $baseCell;
1333  }
1334  }
1335  }
1336  }
1337 
1338  // TODO: Same for columns
1339  }
1340 
1341  // We have calculated the spans
1342  $this->_spansAreCalculated = true;
1343  }
1344 
1345 }