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<?php
namespace PhpOffice\PhpSpreadsheet\Writer;
use HTMLPurifier;
use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
use PhpOffice\PhpSpreadsheet\Cell\Cell;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Chart\Chart;
use PhpOffice\PhpSpreadsheet\RichText\RichText;
use PhpOffice\PhpSpreadsheet\RichText\Run;
use PhpOffice\PhpSpreadsheet\Settings;
use PhpOffice\PhpSpreadsheet\Shared\Drawing as SharedDrawing;
use PhpOffice\PhpSpreadsheet\Shared\File;
use PhpOffice\PhpSpreadsheet\Shared\Font as SharedFont;
use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Style\Alignment;
use PhpOffice\PhpSpreadsheet\Style\Border;
use PhpOffice\PhpSpreadsheet\Style\Borders;
use PhpOffice\PhpSpreadsheet\Style\Fill;
use PhpOffice\PhpSpreadsheet\Style\Font;
use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
use PhpOffice\PhpSpreadsheet\Style\Style;
use PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
class Html extends BaseWriter
{
/**
* Spreadsheet object.
*
* @var Spreadsheet
*/
protected $spreadsheet;
/**
* Sheet index to write.
*
* @var null|int
*/
private $sheetIndex = 0;
/**
* Images root.
*
* @var string
*/
private $imagesRoot = '';
/**
* embed images, or link to images.
*
* @var bool
*/
private $embedImages = false;
/**
* Use inline CSS?
*
* @var bool
*/
private $useInlineCss = false;
/**
* Use embedded CSS?
*
* @var bool
*/
private $useEmbeddedCSS = true;
/**
* Array of CSS styles.
*
* @var array
*/
private $cssStyles;
/**
* Array of column widths in points.
*
* @var array
*/
private $columnWidths;
/**
* Default font.
*
* @var Font
*/
private $defaultFont;
/**
* Flag whether spans have been calculated.
*
* @var bool
*/
private $spansAreCalculated = false;
/**
* Excel cells that should not be written as HTML cells.
*
* @var array
*/
private $isSpannedCell = [];
/**
* Excel cells that are upper-left corner in a cell merge.
*
* @var array
*/
private $isBaseCell = [];
/**
* Excel rows that should not be written as HTML rows.
*
* @var array
*/
private $isSpannedRow = [];
/**
* Is the current writer creating PDF?
*
* @var bool
*/
protected $isPdf = false;
/**
* Generate the Navigation block.
*
* @var bool
*/
private $generateSheetNavigationBlock = true;
/**
* Callback for editing generated html.
*
* @var null|callable
*/
private $editHtmlCallback;
/**
* Create a new HTML.
*/
public function __construct(Spreadsheet $spreadsheet)
{
$this->spreadsheet = $spreadsheet;
$this->defaultFont = $this->spreadsheet->getDefaultStyle()->getFont();
}
/**
* Save Spreadsheet to file.
*
* @param resource|string $filename
*/
public function save($filename, int $flags = 0): void
{
$this->processFlags($flags);
// Open file
$this->openFileHandle($filename);
// Write html
fwrite($this->fileHandle, $this->generateHTMLAll());
// Close file
$this->maybeCloseFileHandle();
}
/**
* Save Spreadsheet as html to variable.
*
* @return string
*/
public function generateHtmlAll()
{
// garbage collect
$this->spreadsheet->garbageCollect();
$saveDebugLog = Calculation::getInstance($this->spreadsheet)->getDebugLog()->getWriteDebugLog();
Calculation::getInstance($this->spreadsheet)->getDebugLog()->setWriteDebugLog(false);
$saveArrayReturnType = Calculation::getArrayReturnType();
Calculation::setArrayReturnType(Calculation::RETURN_ARRAY_AS_VALUE);
// Build CSS
$this->buildCSS(!$this->useInlineCss);
$html = '';
// Write headers
$html .= $this->generateHTMLHeader(!$this->useInlineCss);
// Write navigation (tabs)
if ((!$this->isPdf) && ($this->generateSheetNavigationBlock)) {
$html .= $this->generateNavigation();
}
// Write data
$html .= $this->generateSheetData();
// Write footer
$html .= $this->generateHTMLFooter();
$callback = $this->editHtmlCallback;
if ($callback) {
$html = $callback($html);
}
Calculation::setArrayReturnType($saveArrayReturnType);
Calculation::getInstance($this->spreadsheet)->getDebugLog()->setWriteDebugLog($saveDebugLog);
return $html;
}
/**
* Set a callback to edit the entire HTML.
*
* The callback must accept the HTML as string as first parameter,
* and it must return the edited HTML as string.
*/
public function setEditHtmlCallback(?callable $callback): void
{
$this->editHtmlCallback = $callback;
}
const VALIGN_ARR = [
Alignment::VERTICAL_BOTTOM => 'bottom',
Alignment::VERTICAL_TOP => 'top',
Alignment::VERTICAL_CENTER => 'middle',
Alignment::VERTICAL_JUSTIFY => 'middle',
];
/**
* Map VAlign.
*
* @param string $vAlign Vertical alignment
*
* @return string
*/
private function mapVAlign($vAlign)
{
return array_key_exists($vAlign, self::VALIGN_ARR) ? self::VALIGN_ARR[$vAlign] : 'baseline';
}
const HALIGN_ARR = [
Alignment::HORIZONTAL_LEFT => 'left',
Alignment::HORIZONTAL_RIGHT => 'right',
Alignment::HORIZONTAL_CENTER => 'center',
Alignment::HORIZONTAL_CENTER_CONTINUOUS => 'center',
Alignment::HORIZONTAL_JUSTIFY => 'justify',
];
/**
* Map HAlign.
*
* @param string $hAlign Horizontal alignment
*
* @return string
*/
private function mapHAlign($hAlign)
{
return array_key_exists($hAlign, self::HALIGN_ARR) ? self::HALIGN_ARR[$hAlign] : '';
}
const BORDER_ARR = [
Border::BORDER_NONE => 'none',
Border::BORDER_DASHDOT => '1px dashed',
Border::BORDER_DASHDOTDOT => '1px dotted',
Border::BORDER_DASHED => '1px dashed',
Border::BORDER_DOTTED => '1px dotted',
Border::BORDER_DOUBLE => '3px double',
Border::BORDER_HAIR => '1px solid',
Border::BORDER_MEDIUM => '2px solid',
Border::BORDER_MEDIUMDASHDOT => '2px dashed',
Border::BORDER_MEDIUMDASHDOTDOT => '2px dotted',
Border::BORDER_SLANTDASHDOT => '2px dashed',
Border::BORDER_THICK => '3px solid',
];
/**
* Map border style.
*
* @param int $borderStyle Sheet index
*
* @return string
*/
private function mapBorderStyle($borderStyle)
{
return array_key_exists($borderStyle, self::BORDER_ARR) ? self::BORDER_ARR[$borderStyle] : '1px solid';
}
/**
* Get sheet index.
*
* @return int
*/
public function getSheetIndex()
{
return $this->sheetIndex;
}
/**
* Set sheet index.
*
* @param int $pValue Sheet index
*
* @return $this
*/
public function setSheetIndex($pValue)
{
$this->sheetIndex = $pValue;
return $this;
}
/**
* Get sheet index.
*
* @return bool
*/
public function getGenerateSheetNavigationBlock()
{
return $this->generateSheetNavigationBlock;
}
/**
* Set sheet index.
*
* @param bool $pValue Flag indicating whether the sheet navigation block should be generated or not
*
* @return $this
*/
public function setGenerateSheetNavigationBlock($pValue)
{
$this->generateSheetNavigationBlock = (bool) $pValue;
return $this;
}
/**
* Write all sheets (resets sheetIndex to NULL).
*
* @return $this
*/
public function writeAllSheets()
{
$this->sheetIndex = null;
return $this;
}
private static function generateMeta($val, $desc)
{
return $val
? (' <meta name="' . $desc . '" content="' . htmlspecialchars($val, Settings::htmlEntityFlags()) . '" />' . PHP_EOL)
: '';
}
/**
* Generate HTML header.
*
* @param bool $pIncludeStyles Include styles?
*
* @return string
*/
public function generateHTMLHeader($pIncludeStyles = false)
{
// Construct HTML
$properties = $this->spreadsheet->getProperties();
$html = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">' . PHP_EOL;
$html .= '<html xmlns="http://www.w3.org/1999/xhtml">' . PHP_EOL;
$html .= ' <head>' . PHP_EOL;
$html .= ' <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />' . PHP_EOL;
$html .= ' <meta name="generator" content="PhpSpreadsheet, https://github.com/PHPOffice/PhpSpreadsheet" />' . PHP_EOL;
$html .= ' <title>' . htmlspecialchars($properties->getTitle(), Settings::htmlEntityFlags()) . '</title>' . PHP_EOL;
$html .= self::generateMeta($properties->getCreator(), 'author');
$html .= self::generateMeta($properties->getTitle(), 'title');
$html .= self::generateMeta($properties->getDescription(), 'description');
$html .= self::generateMeta($properties->getSubject(), 'subject');
$html .= self::generateMeta($properties->getKeywords(), 'keywords');
$html .= self::generateMeta($properties->getCategory(), 'category');
$html .= self::generateMeta($properties->getCompany(), 'company');
$html .= self::generateMeta($properties->getManager(), 'manager');
$html .= $pIncludeStyles ? $this->generateStyles(true) : $this->generatePageDeclarations(true);
$html .= ' </head>' . PHP_EOL;
$html .= '' . PHP_EOL;
$html .= ' <body>' . PHP_EOL;
return $html;
}
private function generateSheetPrep()
{
// Ensure that Spans have been calculated?
$this->calculateSpans();
// Fetch sheets
if ($this->sheetIndex === null) {
$sheets = $this->spreadsheet->getAllSheets();
} else {
$sheets = [$this->spreadsheet->getSheet($this->sheetIndex)];
}
return $sheets;
}
private function generateSheetStarts($sheet, $rowMin)
{
// calculate start of <tbody>, <thead>
$tbodyStart = $rowMin;
$theadStart = $theadEnd = 0; // default: no <thead> no </thead>
if ($sheet->getPageSetup()->isRowsToRepeatAtTopSet()) {
$rowsToRepeatAtTop = $sheet->getPageSetup()->getRowsToRepeatAtTop();
// we can only support repeating rows that start at top row
if ($rowsToRepeatAtTop[0] == 1) {
$theadStart = $rowsToRepeatAtTop[0];
$theadEnd = $rowsToRepeatAtTop[1];
$tbodyStart = $rowsToRepeatAtTop[1] + 1;
}
}
return [$theadStart, $theadEnd, $tbodyStart];
}
private function generateSheetTags($row, $theadStart, $theadEnd, $tbodyStart)
{
// <thead> ?
$startTag = ($row == $theadStart) ? (' <thead>' . PHP_EOL) : '';
if (!$startTag) {
$startTag = ($row == $tbodyStart) ? (' <tbody>' . PHP_EOL) : '';
}
$endTag = ($row == $theadEnd) ? (' </thead>' . PHP_EOL) : '';
$cellType = ($row >= $tbodyStart) ? 'td' : 'th';
return [$cellType, $startTag, $endTag];
}
/**
* Generate sheet data.
*
* @return string
*/
public function generateSheetData()
{
$sheets = $this->generateSheetPrep();
// Construct HTML
$html = '';
// Loop all sheets
$sheetId = 0;
foreach ($sheets as $sheet) {
// Write table header
$html .= $this->generateTableHeader($sheet);
// Get worksheet dimension
[$min, $max] = explode(':', $sheet->calculateWorksheetDataDimension());
[$minCol, $minRow] = Coordinate::indexesFromString($min);
[$maxCol, $maxRow] = Coordinate::indexesFromString($max);
[$theadStart, $theadEnd, $tbodyStart] = $this->generateSheetStarts($sheet, $minRow);
// Loop through cells
$row = $minRow - 1;
while ($row++ < $maxRow) {
[$cellType, $startTag, $endTag] = $this->generateSheetTags($row, $theadStart, $theadEnd, $tbodyStart);
$html .= $startTag;
// Write row if there are HTML table cells in it
if (!isset($this->isSpannedRow[$sheet->getParent()->getIndex($sheet)][$row])) {
// Start a new rowData
$rowData = [];
// Loop through columns
$column = $minCol;
while ($column <= $maxCol) {
// Cell exists?
if ($sheet->cellExistsByColumnAndRow($column, $row)) {
$rowData[$column] = Coordinate::stringFromColumnIndex($column) . $row;
} else {
$rowData[$column] = '';
}
++$column;
}
$html .= $this->generateRow($sheet, $rowData, $row - 1, $cellType);
}
$html .= $endTag;
}
$html .= $this->extendRowsForChartsAndImages($sheet, $row);
// Write table footer
$html .= $this->generateTableFooter();
// Writing PDF?
if ($this->isPdf && $this->useInlineCss) {
if ($this->sheetIndex === null && $sheetId + 1 < $this->spreadsheet->getSheetCount()) {
$html .= '<div style="page-break-before:always" ></div>';
}
}
// Next sheet
++$sheetId;
}
return $html;
}
/**
* Generate sheet tabs.
*
* @return string
*/
public function generateNavigation()
{
// Fetch sheets
$sheets = [];
if ($this->sheetIndex === null) {
$sheets = $this->spreadsheet->getAllSheets();
} else {
$sheets[] = $this->spreadsheet->getSheet($this->sheetIndex);
}
// Construct HTML
$html = '';
// Only if there are more than 1 sheets
if (count($sheets) > 1) {
// Loop all sheets
$sheetId = 0;
$html .= '<ul class="navigation">' . PHP_EOL;
foreach ($sheets as $sheet) {
$html .= ' <li class="sheet' . $sheetId . '"><a href="#sheet' . $sheetId . '">' . $sheet->getTitle() . '</a></li>' . PHP_EOL;
++$sheetId;
}
$html .= '</ul>' . PHP_EOL;
}
return $html;
}
/**
* Extend Row if chart is placed after nominal end of row.
* This code should be exercised by sample:
* Chart/32_Chart_read_write_PDF.php.
* However, that test is suppressed due to out-of-date
* Jpgraph code issuing warnings. So, don't measure
* code coverage for this function till that is fixed.
*
* @param int $row Row to check for charts
*
* @return array
*
* @codeCoverageIgnore
*/
private function extendRowsForCharts(Worksheet $worksheet, int $row)
{
$rowMax = $row;
$colMax = 'A';
$anyfound = false;
if ($this->includeCharts) {
foreach ($worksheet->getChartCollection() as $chart) {
if ($chart instanceof Chart) {
$anyfound = true;
$chartCoordinates = $chart->getTopLeftPosition();
$chartTL = Coordinate::coordinateFromString($chartCoordinates['cell']);
$chartCol = Coordinate::columnIndexFromString($chartTL[0]);
if ($chartTL[1] > $rowMax) {
$rowMax = $chartTL[1];
if ($chartCol > Coordinate::columnIndexFromString($colMax)) {
$colMax = $chartTL[0];
}
}
}
}
}
return [$rowMax, $colMax, $anyfound];
}
private function extendRowsForChartsAndImages(Worksheet $worksheet, int $row): string
{
[$rowMax, $colMax, $anyfound] = $this->extendRowsForCharts($worksheet, $row);
foreach ($worksheet->getDrawingCollection() as $drawing) {
$anyfound = true;
$imageTL = Coordinate::coordinateFromString($drawing->getCoordinates());
$imageCol = Coordinate::columnIndexFromString($imageTL[0]);
if ($imageTL[1] > $rowMax) {
$rowMax = $imageTL[1];
if ($imageCol > Coordinate::columnIndexFromString($colMax)) {
$colMax = $imageTL[0];
}
}
}
// Don't extend rows if not needed
if ($row === $rowMax || !$anyfound) {
return '';
}
$html = '';
++$colMax;
++$row;
while ($row <= $rowMax) {
$html .= '<tr>';
for ($col = 'A'; $col != $colMax; ++$col) {
$htmlx = $this->writeImageInCell($worksheet, $col . $row);
$htmlx .= $this->includeCharts ? $this->writeChartInCell($worksheet, $col . $row) : '';
if ($htmlx) {
$html .= "<td class='style0' style='position: relative;'>$htmlx</td>";
} else {
$html .= "<td class='style0'></td>";
}
}
++$row;
$html .= '</tr>' . PHP_EOL;
}
return $html;
}
/**
* Convert Windows file name to file protocol URL.
*
* @param string $filename file name on local system
*
* @return string
*/
public static function winFileToUrl($filename)
{
// Windows filename
if (substr($filename, 1, 2) === ':\\') {
$filename = 'file:///' . str_replace('\\', '/', $filename);
}
return $filename;
}
/**
* Generate image tag in cell.
*
* @param Worksheet $worksheet \PhpOffice\PhpSpreadsheet\Worksheet\Worksheet
* @param string $coordinates Cell coordinates
*
* @return string
*/
private function writeImageInCell(Worksheet $worksheet, $coordinates)
{
// Construct HTML
$html = '';
// Write images
foreach ($worksheet->getDrawingCollection() as $drawing) {
if ($drawing->getCoordinates() != $coordinates) {
continue;
}
$filedesc = $drawing->getDescription();
$filedesc = $filedesc ? htmlspecialchars($filedesc, ENT_QUOTES) : 'Embedded image';
if ($drawing instanceof Drawing) {
$filename = $drawing->getPath();
// Strip off eventual '.'
$filename = preg_replace('/^[.]/', '', $filename);
// Prepend images root
$filename = $this->getImagesRoot() . $filename;
// Strip off eventual '.' if followed by non-/
$filename = preg_replace('@^[.]([^/])@', '$1', $filename);
// Convert UTF8 data to PCDATA
$filename = htmlspecialchars($filename, Settings::htmlEntityFlags());
$html .= PHP_EOL;
$imageData = self::winFileToUrl($filename);
if ($this->embedImages && !$this->isPdf) {
$picture = @file_get_contents($filename);
if ($picture !== false) {
$imageDetails = getimagesize($filename);
// base64 encode the binary data
$base64 = base64_encode($picture);
$imageData = 'data:' . $imageDetails['mime'] . ';base64,' . $base64;
}
}
$html .= '<img style="position: absolute; z-index: 1; left: ' .
$drawing->getOffsetX() . 'px; top: ' . $drawing->getOffsetY() . 'px; width: ' .
$drawing->getWidth() . 'px; height: ' . $drawing->getHeight() . 'px;" src="' .
$imageData . '" alt="' . $filedesc . '" />';
} elseif ($drawing instanceof MemoryDrawing) {
$imageResource = $drawing->getImageResource();
if ($imageResource) {
ob_start(); // Let's start output buffering.
imagepng($imageResource); // This will normally output the image, but because of ob_start(), it won't.
$contents = ob_get_contents(); // Instead, output above is saved to $contents
ob_end_clean(); // End the output buffer.
$dataUri = 'data:image/jpeg;base64,' . base64_encode($contents);
// Because of the nature of tables, width is more important than height.
// max-width: 100% ensures that image doesnt overflow containing cell
// width: X sets width of supplied image.
// As a result, images bigger than cell will be contained and images smaller will not get stretched
$html .= '<img alt="' . $filedesc . '" src="' . $dataUri . '" style="max-width:100%;width:' . $drawing->getWidth() . 'px;" />';
}
}
}
return $html;
}
/**
* Generate chart tag in cell.
* This code should be exercised by sample:
* Chart/32_Chart_read_write_PDF.php.
* However, that test is suppressed due to out-of-date
* Jpgraph code issuing warnings. So, don't measure
* code coverage for this function till that is fixed.
*
* @codeCoverageIgnore
*/
private function writeChartInCell(Worksheet $worksheet, string $coordinates): string
{
// Construct HTML
$html = '';
// Write charts
foreach ($worksheet->getChartCollection() as $chart) {
if ($chart instanceof Chart) {
$chartCoordinates = $chart->getTopLeftPosition();
if ($chartCoordinates['cell'] == $coordinates) {
$chartFileName = File::sysGetTempDir() . '/' . uniqid('', true) . '.png';
if (!$chart->render($chartFileName)) {
return '';
}
$html .= PHP_EOL;
$imageDetails = getimagesize($chartFileName);
$filedesc = $chart->getTitle();
$filedesc = $filedesc ? $filedesc->getCaptionText() : '';
$filedesc = $filedesc ? htmlspecialchars($filedesc, ENT_QUOTES) : 'Embedded chart';
if ($fp = fopen($chartFileName, 'rb', 0)) {
$picture = fread($fp, filesize($chartFileName));
fclose($fp);
// base64 encode the binary data
$base64 = base64_encode($picture);
$imageData = 'data:' . $imageDetails['mime'] . ';base64,' . $base64;
$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 . '" alt="' . $filedesc . '" />' . PHP_EOL;
unlink($chartFileName);
}
}
}
}
// Return
return $html;
}
/**
* Generate CSS styles.
*
* @param bool $generateSurroundingHTML Generate surrounding HTML tags? (<style> and </style>)
*
* @return string
*/
public function generateStyles($generateSurroundingHTML = true)
{
// Build CSS
$css = $this->buildCSS($generateSurroundingHTML);
// Construct HTML
$html = '';
// Start styles
if ($generateSurroundingHTML) {
$html .= ' <style type="text/css">' . PHP_EOL;
$html .= (array_key_exists('html', $css)) ? (' html { ' . $this->assembleCSS($css['html']) . ' }' . PHP_EOL) : '';
}
// Write all other styles
foreach ($css as $styleName => $styleDefinition) {
if ($styleName != 'html') {
$html .= ' ' . $styleName . ' { ' . $this->assembleCSS($styleDefinition) . ' }' . PHP_EOL;
}
}
$html .= $this->generatePageDeclarations(false);
// End styles
if ($generateSurroundingHTML) {
$html .= ' </style>' . PHP_EOL;
}
// Return
return $html;
}
private function buildCssRowHeights(Worksheet $sheet, array &$css, int $sheetIndex): void
{
// Calculate row heights
foreach ($sheet->getRowDimensions() as $rowDimension) {
$row = $rowDimension->getRowIndex() - 1;
// table.sheetN tr.rowYYYYYY { }
$css['table.sheet' . $sheetIndex . ' tr.row' . $row] = [];
if ($rowDimension->getRowHeight() != -1) {
$pt_height = $rowDimension->getRowHeight();
$css['table.sheet' . $sheetIndex . ' tr.row' . $row]['height'] = $pt_height . 'pt';
}
if ($rowDimension->getVisible() === false) {
$css['table.sheet' . $sheetIndex . ' tr.row' . $row]['display'] = 'none';
$css['table.sheet' . $sheetIndex . ' tr.row' . $row]['visibility'] = 'hidden';
}
}
}
private function buildCssPerSheet(Worksheet $sheet, array &$css): void
{
// Calculate hash code
$sheetIndex = $sheet->getParent()->getIndex($sheet);
// Build styles
// Calculate column widths
$sheet->calculateColumnWidths();
// col elements, initialize
$highestColumnIndex = Coordinate::columnIndexFromString($sheet->getHighestColumn()) - 1;
$column = -1;
while ($column++ < $highestColumnIndex) {
$this->columnWidths[$sheetIndex][$column] = 42; // approximation
$css['table.sheet' . $sheetIndex . ' col.col' . $column]['width'] = '42pt';
}
// col elements, loop through columnDimensions and set width
foreach ($sheet->getColumnDimensions() as $columnDimension) {
$column = Coordinate::columnIndexFromString($columnDimension->getColumnIndex()) - 1;
$width = SharedDrawing::cellDimensionToPixels($columnDimension->getWidth(), $this->defaultFont);
$width = SharedDrawing::pixelsToPoints($width);
if ($columnDimension->getVisible() === false) {
$css['table.sheet' . $sheetIndex . ' .column' . $column]['display'] = 'none';
}
if ($width >= 0) {
$this->columnWidths[$sheetIndex][$column] = $width;
$css['table.sheet' . $sheetIndex . ' col.col' . $column]['width'] = $width . 'pt';
}
}
// Default row height
$rowDimension = $sheet->getDefaultRowDimension();
// table.sheetN tr { }
$css['table.sheet' . $sheetIndex . ' tr'] = [];
if ($rowDimension->getRowHeight() == -1) {
$pt_height = SharedFont::getDefaultRowHeightByFont($this->spreadsheet->getDefaultStyle()->getFont());
} else {
$pt_height = $rowDimension->getRowHeight();
}
$css['table.sheet' . $sheetIndex . ' tr']['height'] = $pt_height . 'pt';
if ($rowDimension->getVisible() === false) {
$css['table.sheet' . $sheetIndex . ' tr']['display'] = 'none';
$css['table.sheet' . $sheetIndex . ' tr']['visibility'] = 'hidden';
}
$this->buildCssRowHeights($sheet, $css, $sheetIndex);
}
/**
* Build CSS styles.
*
* @param bool $generateSurroundingHTML Generate surrounding HTML style? (html { })
*
* @return array
*/
public function buildCSS($generateSurroundingHTML = true)
{
// Cached?
if ($this->cssStyles !== null) {
return $this->cssStyles;
}
// Ensure that spans have been calculated
$this->calculateSpans();
// Construct CSS
$css = [];
// Start styles
if ($generateSurroundingHTML) {
// html { }
$css['html']['font-family'] = 'Calibri, Arial, Helvetica, sans-serif';
$css['html']['font-size'] = '11pt';
$css['html']['background-color'] = 'white';
}
// CSS for comments as found in LibreOffice
$css['a.comment-indicator:hover + div.comment'] = [
'background' => '#ffd',
'position' => 'absolute',
'display' => 'block',
'border' => '1px solid black',
'padding' => '0.5em',
];
$css['a.comment-indicator'] = [
'background' => 'red',
'display' => 'inline-block',
'border' => '1px solid black',
'width' => '0.5em',
'height' => '0.5em',
];
$css['div.comment']['display'] = 'none';
// table { }
$css['table']['border-collapse'] = 'collapse';
// .b {}
$css['.b']['text-align'] = 'center'; // BOOL
// .e {}
$css['.e']['text-align'] = 'center'; // ERROR
// .f {}
$css['.f']['text-align'] = 'right'; // FORMULA
// .inlineStr {}
$css['.inlineStr']['text-align'] = 'left'; // INLINE
// .n {}
$css['.n']['text-align'] = 'right'; // NUMERIC
// .s {}
$css['.s']['text-align'] = 'left'; // STRING
// Calculate cell style hashes
foreach ($this->spreadsheet->getCellXfCollection() as $index => $style) {
$css['td.style' . $index] = $this->createCSSStyle($style);
$css['th.style' . $index] = $this->createCSSStyle($style);
}
// Fetch sheets
$sheets = [];
if ($this->sheetIndex === null) {
$sheets = $this->spreadsheet->getAllSheets();
} else {
$sheets[] = $this->spreadsheet->getSheet($this->sheetIndex);
}
// Build styles per sheet
foreach ($sheets as $sheet) {
$this->buildCssPerSheet($sheet, $css);
}
// Cache
if ($this->cssStyles === null) {
$this->cssStyles = $css;
}
// Return
return $css;
}
/**
* Create CSS style.
*
* @return array
*/
private function createCSSStyle(Style $pStyle)
{
// Create CSS
return array_merge(
$this->createCSSStyleAlignment($pStyle->getAlignment()),
$this->createCSSStyleBorders($pStyle->getBorders()),
$this->createCSSStyleFont($pStyle->getFont()),
$this->createCSSStyleFill($pStyle->getFill())
);
}
/**
* Create CSS style (\PhpOffice\PhpSpreadsheet\Style\Alignment).
*
* @param Alignment $pStyle \PhpOffice\PhpSpreadsheet\Style\Alignment
*
* @return array
*/
private function createCSSStyleAlignment(Alignment $pStyle)
{
// Construct CSS
$css = [];
// Create CSS
$css['vertical-align'] = $this->mapVAlign($pStyle->getVertical());
$textAlign = $this->mapHAlign($pStyle->getHorizontal());
if ($textAlign) {
$css['text-align'] = $textAlign;
if (in_array($textAlign, ['left', 'right'])) {
$css['padding-' . $textAlign] = (string) ((int) $pStyle->getIndent() * 9) . 'px';
}
}
return $css;
}
/**
* Create CSS style (\PhpOffice\PhpSpreadsheet\Style\Font).
*
* @return array
*/
private function createCSSStyleFont(Font $pStyle)
{
// Construct CSS
$css = [];
// Create CSS
if ($pStyle->getBold()) {
$css['font-weight'] = 'bold';
}
if ($pStyle->getUnderline() != Font::UNDERLINE_NONE && $pStyle->getStrikethrough()) {
$css['text-decoration'] = 'underline line-through';
} elseif ($pStyle->getUnderline() != Font::UNDERLINE_NONE) {
$css['text-decoration'] = 'underline';
} elseif ($pStyle->getStrikethrough()) {
$css['text-decoration'] = 'line-through';
}
if ($pStyle->getItalic()) {
$css['font-style'] = 'italic';
}
$css['color'] = '#' . $pStyle->getColor()->getRGB();
$css['font-family'] = '\'' . $pStyle->getName() . '\'';
$css['font-size'] = $pStyle->getSize() . 'pt';
return $css;
}
/**
* Create CSS style (Borders).
*
* @param Borders $pStyle Borders
*
* @return array
*/
private function createCSSStyleBorders(Borders $pStyle)
{
// Construct CSS
$css = [];
// Create CSS
$css['border-bottom'] = $this->createCSSStyleBorder($pStyle->getBottom());
$css['border-top'] = $this->createCSSStyleBorder($pStyle->getTop());
$css['border-left'] = $this->createCSSStyleBorder($pStyle->getLeft());
$css['border-right'] = $this->createCSSStyleBorder($pStyle->getRight());
return $css;
}
/**
* Create CSS style (Border).
*
* @param Border $pStyle Border
*
* @return string
*/
private function createCSSStyleBorder(Border $pStyle)
{
// Create CSS - add !important to non-none border styles for merged cells
$borderStyle = $this->mapBorderStyle($pStyle->getBorderStyle());
return $borderStyle . ' #' . $pStyle->getColor()->getRGB() . (($borderStyle == 'none') ? '' : ' !important');
}
/**
* Create CSS style (Fill).
*
* @param Fill $pStyle Fill
*
* @return array
*/
private function createCSSStyleFill(Fill $pStyle)
{
// Construct HTML
$css = [];
// Create CSS
$value = $pStyle->getFillType() == Fill::FILL_NONE ?
'white' : '#' . $pStyle->getStartColor()->getRGB();
$css['background-color'] = $value;
return $css;
}
/**
* Generate HTML footer.
*/
public function generateHTMLFooter()
{
// Construct HTML
$html = '';
$html .= ' </body>' . PHP_EOL;
$html .= '</html>' . PHP_EOL;
return $html;
}
private function generateTableTagInline(Worksheet $worksheet, $id)
{
$style = isset($this->cssStyles['table']) ?
$this->assembleCSS($this->cssStyles['table']) : '';
$prntgrid = $worksheet->getPrintGridlines();
$viewgrid = $this->isPdf ? $prntgrid : $worksheet->getShowGridlines();
if ($viewgrid && $prntgrid) {
$html = " <table border='1' cellpadding='1' $id cellspacing='1' style='$style' class='gridlines gridlinesp'>" . PHP_EOL;
} elseif ($viewgrid) {
$html = " <table border='0' cellpadding='0' $id cellspacing='0' style='$style' class='gridlines'>" . PHP_EOL;
} elseif ($prntgrid) {
$html = " <table border='0' cellpadding='0' $id cellspacing='0' style='$style' class='gridlinesp'>" . PHP_EOL;
} else {
$html = " <table border='0' cellpadding='1' $id cellspacing='0' style='$style'>" . PHP_EOL;
}
return $html;
}
private function generateTableTag(Worksheet $worksheet, $id, &$html, $sheetIndex): void
{
if (!$this->useInlineCss) {
$gridlines = $worksheet->getShowGridlines() ? ' gridlines' : '';
$gridlinesp = $worksheet->getPrintGridlines() ? ' gridlinesp' : '';
$html .= " <table border='0' cellpadding='0' cellspacing='0' $id class='sheet$sheetIndex$gridlines$gridlinesp'>" . PHP_EOL;
} else {
$html .= $this->generateTableTagInline($worksheet, $id);
}
}
/**
* Generate table header.
*
* @param Worksheet $worksheet The worksheet for the table we are writing
* @param bool $showid whether or not to add id to table tag
*
* @return string
*/
private function generateTableHeader(Worksheet $worksheet, $showid = true)
{
$sheetIndex = $worksheet->getParent()->getIndex($worksheet);
// Construct HTML
$html = '';
$id = $showid ? "id='sheet$sheetIndex'" : '';
if ($showid) {
$html .= "<div style='page: page$sheetIndex'>\n";
} else {
$html .= "<div style='page: page$sheetIndex' class='scrpgbrk'>\n";
}
$this->generateTableTag($worksheet, $id, $html, $sheetIndex);
// Write <col> elements
$highestColumnIndex = Coordinate::columnIndexFromString($worksheet->getHighestColumn()) - 1;
$i = -1;
while ($i++ < $highestColumnIndex) {
if (!$this->useInlineCss) {
$html .= ' <col class="col' . $i . '" />' . PHP_EOL;
} else {
$style = isset($this->cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) ?
$this->assembleCSS($this->cssStyles['table.sheet' . $sheetIndex . ' col.col' . $i]) : '';
$html .= ' <col style="' . $style . '" />' . PHP_EOL;
}
}
return $html;
}
/**
* Generate table footer.
*/
private function generateTableFooter()
{
return ' </tbody></table>' . PHP_EOL . '</div>' . PHP_EOL;
}
/**
* Generate row start.
*
* @param int $sheetIndex Sheet index (0-based)
* @param int $pRow row number
*
* @return string
*/
private function generateRowStart(Worksheet $worksheet, $sheetIndex, $pRow)
{
$html = '';
if (count($worksheet->getBreaks()) > 0) {
$breaks = $worksheet->getBreaks();
// check if a break is needed before this row
if (isset($breaks['A' . $pRow])) {
// close table: </table>
$html .= $this->generateTableFooter();
if ($this->isPdf && $this->useInlineCss) {
$html .= '<div style="page-break-before:always" />';
}
// open table again: <table> + <col> etc.
$html .= $this->generateTableHeader($worksheet, false);
$html .= '<tbody>' . PHP_EOL;
}
}
// Write row start
if (!$this->useInlineCss) {
$html .= ' <tr class="row' . $pRow . '">' . PHP_EOL;
} else {
$style = isset($this->cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow])
? $this->assembleCSS($this->cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]) : '';
$html .= ' <tr style="' . $style . '">' . PHP_EOL;
}
return $html;
}
private function generateRowCellCss(Worksheet $worksheet, $cellAddress, $pRow, $colNum)
{
$cell = ($cellAddress > '') ? $worksheet->getCell($cellAddress) : '';
$coordinate = Coordinate::stringFromColumnIndex($colNum + 1) . ($pRow + 1);
if (!$this->useInlineCss) {
$cssClass = 'column' . $colNum;
} else {
$cssClass = [];
// The statements below do nothing.
// Commenting out the code rather than deleting it
// in case someone can figure out what their intent was.
//if ($cellType == 'th') {
// if (isset($this->cssStyles['table.sheet' . $sheetIndex . ' th.column' . $colNum])) {
// $this->cssStyles['table.sheet' . $sheetIndex . ' th.column' . $colNum];
// }
//} else {
// if (isset($this->cssStyles['table.sheet' . $sheetIndex . ' td.column' . $colNum])) {
// $this->cssStyles['table.sheet' . $sheetIndex . ' td.column' . $colNum];
// }
//}
// End of mystery statements.
}
return [$cell, $cssClass, $coordinate];
}
private function generateRowCellDataValueRich($cell, &$cellData): void
{
// Loop through rich text elements
$elements = $cell->getValue()->getRichTextElements();
foreach ($elements as $element) {
// Rich text start?
if ($element instanceof Run) {
$cellData .= '<span style="' . $this->assembleCSS($this->createCSSStyleFont($element->getFont())) . '">';
$cellEnd = '';
if ($element->getFont()->getSuperscript()) {
$cellData .= '<sup>';
$cellEnd = '</sup>';
} elseif ($element->getFont()->getSubscript()) {
$cellData .= '<sub>';
$cellEnd = '</sub>';
}
// Convert UTF8 data to PCDATA
$cellText = $element->getText();
$cellData .= htmlspecialchars($cellText, Settings::htmlEntityFlags());
$cellData .= $cellEnd;
$cellData .= '</span>';
} else {
// Convert UTF8 data to PCDATA
$cellText = $element->getText();
$cellData .= htmlspecialchars($cellText, Settings::htmlEntityFlags());
}
}
}
private function generateRowCellDataValue(Worksheet $worksheet, $cell, &$cellData): void
{
if ($cell->getValue() instanceof RichText) {
$this->generateRowCellDataValueRich($cell, $cellData);
} else {
$origData = $this->preCalculateFormulas ? $cell->getCalculatedValue() : $cell->getValue();
$formatCode = $worksheet->getParent()->getCellXfByIndex($cell->getXfIndex())->getNumberFormat()->getFormatCode();
if ($formatCode !== null) {
$cellData = NumberFormat::toFormattedString(
$origData,
$formatCode,
[$this, 'formatColor']
);
}
if ($cellData === $origData) {
$cellData = htmlspecialchars($cellData ?? '', Settings::htmlEntityFlags());
}
if ($worksheet->getParent()->getCellXfByIndex($cell->getXfIndex())->getFont()->getSuperscript()) {
$cellData = '<sup>' . $cellData . '</sup>';
} elseif ($worksheet->getParent()->getCellXfByIndex($cell->getXfIndex())->getFont()->getSubscript()) {
$cellData = '<sub>' . $cellData . '</sub>';
}
}
}
private function generateRowCellData(Worksheet $worksheet, $cell, &$cssClass, $cellType)
{
$cellData = ' ';
if ($cell instanceof Cell) {
$cellData = '';
// Don't know what this does, and no test cases.
//if ($cell->getParent() === null) {
// $cell->attach($worksheet);
//}
// Value
$this->generateRowCellDataValue($worksheet, $cell, $cellData);
// Converts the cell content so that spaces occuring at beginning of each new line are replaced by
// Example: " Hello\n to the world" is converted to " Hello\n to the world"
$cellData = preg_replace('/(?m)(?:^|\\G) /', ' ', $cellData);
// convert newline "\n" to '<br>'
$cellData = nl2br($cellData);
// Extend CSS class?
if (!$this->useInlineCss) {
$cssClass .= ' style' . $cell->getXfIndex();
$cssClass .= ' ' . $cell->getDataType();
} else {
if ($cellType == 'th') {
if (isset($this->cssStyles['th.style' . $cell->getXfIndex()])) {
$cssClass = array_merge($cssClass, $this->cssStyles['th.style' . $cell->getXfIndex()]);
}
} else {
if (isset($this->cssStyles['td.style' . $cell->getXfIndex()])) {
$cssClass = array_merge($cssClass, $this->cssStyles['td.style' . $cell->getXfIndex()]);
}
}
// General horizontal alignment: Actual horizontal alignment depends on dataType
$sharedStyle = $worksheet->getParent()->getCellXfByIndex($cell->getXfIndex());
if (
$sharedStyle->getAlignment()->getHorizontal() == Alignment::HORIZONTAL_GENERAL
&& isset($this->cssStyles['.' . $cell->getDataType()]['text-align'])
) {
$cssClass['text-align'] = $this->cssStyles['.' . $cell->getDataType()]['text-align'];
}
}
} else {
// Use default borders for empty cell
if (is_string($cssClass)) {
$cssClass .= ' style0';
}
}
return $cellData;
}
private function generateRowIncludeCharts(Worksheet $worksheet, $coordinate)
{
return $this->includeCharts ? $this->writeChartInCell($worksheet, $coordinate) : '';
}
private function generateRowSpans($html, $rowSpan, $colSpan)
{
$html .= ($colSpan > 1) ? (' colspan="' . $colSpan . '"') : '';
$html .= ($rowSpan > 1) ? (' rowspan="' . $rowSpan . '"') : '';
return $html;
}
private function generateRowWriteCell(&$html, Worksheet $worksheet, $coordinate, $cellType, $cellData, $colSpan, $rowSpan, $cssClass, $colNum, $sheetIndex, $pRow): void
{
// Image?
$htmlx = $this->writeImageInCell($worksheet, $coordinate);
// Chart?
$htmlx .= $this->generateRowIncludeCharts($worksheet, $coordinate);
// Column start
$html .= ' <' . $cellType;
if (!$this->useInlineCss && !$this->isPdf) {
$html .= ' class="' . $cssClass . '"';
if ($htmlx) {
$html .= " style='position: relative;'";
}
} else {
//** Necessary redundant code for the sake of \PhpOffice\PhpSpreadsheet\Writer\Pdf **
// We must explicitly write the width of the <td> element because TCPDF
// does not recognize e.g. <col style="width:42pt">
if ($this->useInlineCss) {
$xcssClass = $cssClass;
} else {
$html .= ' class="' . $cssClass . '"';
$xcssClass = [];
}
$width = 0;
$i = $colNum - 1;
$e = $colNum + $colSpan - 1;
while ($i++ < $e) {
if (isset($this->columnWidths[$sheetIndex][$i])) {
$width += $this->columnWidths[$sheetIndex][$i];
}
}
$xcssClass['width'] = $width . 'pt';
// We must also explicitly write the height of the <td> element because TCPDF
// does not recognize e.g. <tr style="height:50pt">
if (isset($this->cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]['height'])) {
$height = $this->cssStyles['table.sheet' . $sheetIndex . ' tr.row' . $pRow]['height'];
$xcssClass['height'] = $height;
}
//** end of redundant code **
if ($htmlx) {
$xcssClass['position'] = 'relative';
}
$html .= ' style="' . $this->assembleCSS($xcssClass) . '"';
}
$html = $this->generateRowSpans($html, $rowSpan, $colSpan);
$html .= '>';
$html .= $htmlx;
$html .= $this->writeComment($worksheet, $coordinate);
// Cell data
$html .= $cellData;
// Column end
$html .= '</' . $cellType . '>' . PHP_EOL;
}
/**
* Generate row.
*
* @param array $pValues Array containing cells in a row
* @param int $pRow Row number (0-based)
* @param string $cellType eg: 'td'
*
* @return string
*/
private function generateRow(Worksheet $worksheet, array $pValues, $pRow, $cellType)
{
// Sheet index
$sheetIndex = $worksheet->getParent()->getIndex($worksheet);
$html = $this->generateRowStart($worksheet, $sheetIndex, $pRow);
// Write cells
$colNum = 0;
foreach ($pValues as $cellAddress) {
[$cell, $cssClass, $coordinate] = $this->generateRowCellCss($worksheet, $cellAddress, $pRow, $colNum);
$colSpan = 1;
$rowSpan = 1;
// Cell Data
$cellData = $this->generateRowCellData($worksheet, $cell, $cssClass, $cellType);
// Hyperlink?
if ($worksheet->hyperlinkExists($coordinate) && !$worksheet->getHyperlink($coordinate)->isInternal()) {
$cellData = '<a href="' . htmlspecialchars($worksheet->getHyperlink($coordinate)->getUrl(), Settings::htmlEntityFlags()) . '" title="' . htmlspecialchars($worksheet->getHyperlink($coordinate)->getTooltip(), Settings::htmlEntityFlags()) . '">' . $cellData . '</a>';
}
// Should the cell be written or is it swallowed by a rowspan or colspan?
$writeCell = !(isset($this->isSpannedCell[$worksheet->getParent()->getIndex($worksheet)][$pRow + 1][$colNum])
&& $this->isSpannedCell[$worksheet->getParent()->getIndex($worksheet)][$pRow + 1][$colNum]);
// Colspan and Rowspan
$colspan = 1;
$rowspan = 1;
if (isset($this->isBaseCell[$worksheet->getParent()->getIndex($worksheet)][$pRow + 1][$colNum])) {
$spans = $this->isBaseCell[$worksheet->getParent()->getIndex($worksheet)][$pRow + 1][$colNum];
$rowSpan = $spans['rowspan'];
$colSpan = $spans['colspan'];
// Also apply style from last cell in merge to fix borders -
// relies on !important for non-none border declarations in createCSSStyleBorder
$endCellCoord = Coordinate::stringFromColumnIndex($colNum + $colSpan) . ($pRow + $rowSpan);
if (!$this->useInlineCss) {
$cssClass .= ' style' . $worksheet->getCell($endCellCoord)->getXfIndex();
}
}
// Write
if ($writeCell) {
$this->generateRowWriteCell($html, $worksheet, $coordinate, $cellType, $cellData, $colSpan, $rowSpan, $cssClass, $colNum, $sheetIndex, $pRow);
}
// Next column
++$colNum;
}
// Write row end
$html .= ' </tr>' . PHP_EOL;
// Return
return $html;
}
/**
* Takes array where of CSS properties / values and converts to CSS string.
*
* @return string
*/
private function assembleCSS(array $pValue = [])
{
$pairs = [];
foreach ($pValue as $property => $value) {
$pairs[] = $property . ':' . $value;
}
$string = implode('; ', $pairs);
return $string;
}
/**
* Get images root.
*
* @return string
*/
public function getImagesRoot()
{
return $this->imagesRoot;
}
/**
* Set images root.
*
* @param string $pValue
*
* @return $this
*/
public function setImagesRoot($pValue)
{
$this->imagesRoot = $pValue;
return $this;
}
/**
* Get embed images.
*
* @return bool
*/
public function getEmbedImages()
{
return $this->embedImages;
}
/**
* Set embed images.
*
* @param bool $pValue
*
* @return $this
*/
public function setEmbedImages($pValue)
{
$this->embedImages = $pValue;
return $this;
}
/**
* Get use inline CSS?
*
* @return bool
*/
public function getUseInlineCss()
{
return $this->useInlineCss;
}
/**
* Set use inline CSS?
*
* @param bool $pValue
*
* @return $this
*/
public function setUseInlineCss($pValue)
{
$this->useInlineCss = $pValue;
return $this;
}
/**
* Get use embedded CSS?
*
* @return bool
*
* @codeCoverageIgnore
*
* @deprecated no longer used
*/
public function getUseEmbeddedCSS()
{
return $this->useEmbeddedCSS;
}
/**
* Set use embedded CSS?
*
* @param bool $pValue
*
* @return $this
*
* @codeCoverageIgnore
*
* @deprecated no longer used
*/
public function setUseEmbeddedCSS($pValue)
{
$this->useEmbeddedCSS = $pValue;
return $this;
}
/**
* Add color to formatted string as inline style.
*
* @param string $pValue Plain formatted value without color
* @param string $pFormat Format code
*
* @return string
*/
public function formatColor($pValue, $pFormat)
{
// Color information, e.g. [Red] is always at the beginning
$color = null; // initialize
$matches = [];
$color_regex = '/^\\[[a-zA-Z]+\\]/';
if (preg_match($color_regex, $pFormat, $matches)) {
$color = str_replace(['[', ']'], '', $matches[0]);
$color = strtolower($color);
}
// convert to PCDATA
$value = htmlspecialchars($pValue, Settings::htmlEntityFlags());
// color span tag
if ($color !== null) {
$value = '<span style="color:' . $color . '">' . $value . '</span>';
}
return $value;
}
/**
* Calculate information about HTML colspan and rowspan which is not always the same as Excel's.
*/
private function calculateSpans(): void
{
if ($this->spansAreCalculated) {
return;
}
// Identify all cells that should be omitted in HTML due to cell merge.
// In HTML only the upper-left cell should be written and it should have
// appropriate rowspan / colspan attribute
$sheetIndexes = $this->sheetIndex !== null ?
[$this->sheetIndex] : range(0, $this->spreadsheet->getSheetCount() - 1);
foreach ($sheetIndexes as $sheetIndex) {
$sheet = $this->spreadsheet->getSheet($sheetIndex);
$candidateSpannedRow = [];
// loop through all Excel merged cells
foreach ($sheet->getMergeCells() as $cells) {
[$cells] = Coordinate::splitRange($cells);
$first = $cells[0];
$last = $cells[1];
[$fc, $fr] = Coordinate::indexesFromString($first);
$fc = $fc - 1;
[$lc, $lr] = Coordinate::indexesFromString($last);
$lc = $lc - 1;
// loop through the individual cells in the individual merge
$r = $fr - 1;
while ($r++ < $lr) {
// also, flag this row as a HTML row that is candidate to be omitted
$candidateSpannedRow[$r] = $r;
$c = $fc - 1;
while ($c++ < $lc) {
if (!($c == $fc && $r == $fr)) {
// not the upper-left cell (should not be written in HTML)
$this->isSpannedCell[$sheetIndex][$r][$c] = [
'baseCell' => [$fr, $fc],
];
} else {
// upper-left is the base cell that should hold the colspan/rowspan attribute
$this->isBaseCell[$sheetIndex][$r][$c] = [
'xlrowspan' => $lr - $fr + 1, // Excel rowspan
'rowspan' => $lr - $fr + 1, // HTML rowspan, value may change
'xlcolspan' => $lc - $fc + 1, // Excel colspan
'colspan' => $lc - $fc + 1, // HTML colspan, value may change
];
}
}
}
}
$this->calculateSpansOmitRows($sheet, $sheetIndex, $candidateSpannedRow);
// TODO: Same for columns
}
// We have calculated the spans
$this->spansAreCalculated = true;
}
private function calculateSpansOmitRows($sheet, $sheetIndex, $candidateSpannedRow): void
{
// Identify which rows should be omitted in HTML. These are the rows where all the cells
// participate in a merge and the where base cells are somewhere above.
$countColumns = Coordinate::columnIndexFromString($sheet->getHighestColumn());
foreach ($candidateSpannedRow as $rowIndex) {
if (isset($this->isSpannedCell[$sheetIndex][$rowIndex])) {
if (count($this->isSpannedCell[$sheetIndex][$rowIndex]) == $countColumns) {
$this->isSpannedRow[$sheetIndex][$rowIndex] = $rowIndex;
}
}
}
// For each of the omitted rows we found above, the affected rowspans should be subtracted by 1
if (isset($this->isSpannedRow[$sheetIndex])) {
foreach ($this->isSpannedRow[$sheetIndex] as $rowIndex) {
$adjustedBaseCells = [];
$c = -1;
$e = $countColumns - 1;
while ($c++ < $e) {
$baseCell = $this->isSpannedCell[$sheetIndex][$rowIndex][$c]['baseCell'];
if (!in_array($baseCell, $adjustedBaseCells)) {
// subtract rowspan by 1
--$this->isBaseCell[$sheetIndex][$baseCell[0]][$baseCell[1]]['rowspan'];
$adjustedBaseCells[] = $baseCell;
}
}
}
}
}
/**
* Write a comment in the same format as LibreOffice.
*
* @see https://github.com/LibreOffice/core/blob/9fc9bf3240f8c62ad7859947ab8a033ac1fe93fa/sc/source/filter/html/htmlexp.cxx#L1073-L1092
*
* @param string $coordinate
*
* @return string
*/
private function writeComment(Worksheet $worksheet, $coordinate)
{
$result = '';
if (!$this->isPdf && isset($worksheet->getComments()[$coordinate])) {
$sanitizer = new HTMLPurifier();
$sanitizedString = $sanitizer->purify($worksheet->getComment($coordinate)->getText()->getPlainText());
if ($sanitizedString !== '') {
$result .= '<a class="comment-indicator"></a>';
$result .= '<div class="comment">' . nl2br($sanitizedString) . '</div>';
$result .= PHP_EOL;
}
}
return $result;
}
/**
* Generate @page declarations.
*
* @param bool $generateSurroundingHTML
*
* @return string
*/
private function generatePageDeclarations($generateSurroundingHTML)
{
// Ensure that Spans have been calculated?
$this->calculateSpans();
// Fetch sheets
$sheets = [];
if ($this->sheetIndex === null) {
$sheets = $this->spreadsheet->getAllSheets();
} else {
$sheets[] = $this->spreadsheet->getSheet($this->sheetIndex);
}
// Construct HTML
$htmlPage = $generateSurroundingHTML ? ('<style type="text/css">' . PHP_EOL) : '';
// Loop all sheets
$sheetId = 0;
foreach ($sheets as $worksheet) {
$htmlPage .= "@page page$sheetId { ";
$left = StringHelper::formatNumber($worksheet->getPageMargins()->getLeft()) . 'in; ';
$htmlPage .= 'margin-left: ' . $left;
$right = StringHelper::FormatNumber($worksheet->getPageMargins()->getRight()) . 'in; ';
$htmlPage .= 'margin-right: ' . $right;
$top = StringHelper::FormatNumber($worksheet->getPageMargins()->getTop()) . 'in; ';
$htmlPage .= 'margin-top: ' . $top;
$bottom = StringHelper::FormatNumber($worksheet->getPageMargins()->getBottom()) . 'in; ';
$htmlPage .= 'margin-bottom: ' . $bottom;
$orientation = $worksheet->getPageSetup()->getOrientation();
if ($orientation === \PhpOffice\PhpSpreadsheet\Worksheet\PageSetup::ORIENTATION_LANDSCAPE) {
$htmlPage .= 'size: landscape; ';
} elseif ($orientation === \PhpOffice\PhpSpreadsheet\Worksheet\PageSetup::ORIENTATION_PORTRAIT) {
$htmlPage .= 'size: portrait; ';
}
$htmlPage .= "}\n";
++$sheetId;
}
$htmlPage .= <<<EOF
.navigation {page-break-after: always;}
.scrpgbrk, div + div {page-break-before: always;}
@media screen {
.gridlines td {border: 1px solid black;}
.gridlines th {border: 1px solid black;}
body>div {margin-top: 5px;}
body>div:first-child {margin-top: 0;}
.scrpgbrk {margin-top: 1px;}
}
@media print {
.gridlinesp td {border: 1px solid black;}
.gridlinesp th {border: 1px solid black;}
.navigation {display: none;}
}
EOF;
$htmlPage .= $generateSurroundingHTML ? ('</style>' . PHP_EOL) : '';
return $htmlPage;
}
}