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<?php
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namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
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use PhpOffice\PhpSpreadsheet\Cell\Cell;
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use PhpOffice\PhpSpreadsheet\Cell\DataType;
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use PhpOffice\PhpSpreadsheet\Chart\ChartColor;
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use PhpOffice\PhpSpreadsheet\Reader\Xlsx\Namespaces;
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use PhpOffice\PhpSpreadsheet\RichText\RichText;
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use PhpOffice\PhpSpreadsheet\RichText\Run;
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use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
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use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
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use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet as ActualWorksheet;
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class StringTable extends WriterPart
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{
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/**
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* Create worksheet stringtable.
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*
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* @param string[] $existingTable Existing table to eventually merge with
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*
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* @return string[] String table for worksheet
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*/
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public function createStringTable(ActualWorksheet $worksheet, ?array $existingTable = null): array
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{
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// Create string lookup table
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$aStringTable = $existingTable ?? [];
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// Fill index array
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$aFlippedStringTable = $this->flipStringTable($aStringTable);
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// Loop through cells
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foreach ($worksheet->getCellCollection()->getCoordinates() as $coordinate) {
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/** @var Cell $cell */
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$cell = $worksheet->getCellCollection()->get($coordinate);
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$cellValue = $cell->getValue();
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if (
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!is_object($cellValue)
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&& ($cellValue !== null)
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&& $cellValue !== ''
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&& ($cell->getDataType() == DataType::TYPE_STRING || $cell->getDataType() == DataType::TYPE_STRING2 || $cell->getDataType() == DataType::TYPE_NULL)
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&& !isset($aFlippedStringTable[$cellValue])
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) {
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$aStringTable[] = $cellValue;
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$aFlippedStringTable[$cellValue] = true;
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} elseif (
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$cellValue instanceof RichText
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&& !isset($aFlippedStringTable[$cellValue->getHashCode()])
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) {
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$aStringTable[] = $cellValue;
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$aFlippedStringTable[$cellValue->getHashCode()] = true;
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}
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}
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return $aStringTable;
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}
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/**
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* Write string table to XML format.
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*
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* @param (RichText|string)[] $stringTable
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*
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* @return string XML Output
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*/
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public function writeStringTable(array $stringTable): string
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{
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// Create XML writer
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$objWriter = null;
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if ($this->getParentWriter()->getUseDiskCaching()) {
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$objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
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} else {
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$objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
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}
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// XML header
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$objWriter->startDocument('1.0', 'UTF-8', 'yes');
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// String table
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$objWriter->startElement('sst');
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$objWriter->writeAttribute('xmlns', Namespaces::MAIN);
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$objWriter->writeAttribute('uniqueCount', (string) count($stringTable));
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// Loop through string table
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foreach ($stringTable as $textElement) {
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$objWriter->startElement('si');
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if (!($textElement instanceof RichText)) {
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$textToWrite = StringHelper::controlCharacterPHP2OOXML($textElement);
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$objWriter->startElement('t');
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if ($textToWrite !== trim($textToWrite)) {
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$objWriter->writeAttribute('xml:space', 'preserve');
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}
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$objWriter->writeRawData($textToWrite);
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$objWriter->endElement();
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} else {
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$this->writeRichText($objWriter, $textElement);
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}
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$objWriter->endElement();
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}
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$objWriter->endElement();
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return $objWriter->getData();
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}
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/**
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* Write Rich Text.
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*
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* @param ?string $prefix Optional Namespace prefix
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*/
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public function writeRichText(XMLWriter $objWriter, RichText $richText, ?string $prefix = null): void
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{
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if ($prefix !== null) {
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$prefix .= ':';
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}
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// Loop through rich text elements
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$elements = $richText->getRichTextElements();
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foreach ($elements as $element) {
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// r
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$objWriter->startElement($prefix . 'r');
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// rPr
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if ($element instanceof Run && $element->getFont() !== null) {
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// rPr
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$objWriter->startElement($prefix . 'rPr');
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// rFont
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if ($element->getFont()->getName() !== null) {
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$objWriter->startElement($prefix . 'rFont');
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$objWriter->writeAttribute('val', $element->getFont()->getName());
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$objWriter->endElement();
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}
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// Bold
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$objWriter->startElement($prefix . 'b');
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$objWriter->writeAttribute('val', ($element->getFont()->getBold() ? 'true' : 'false'));
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$objWriter->endElement();
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// Italic
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$objWriter->startElement($prefix . 'i');
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$objWriter->writeAttribute('val', ($element->getFont()->getItalic() ? 'true' : 'false'));
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$objWriter->endElement();
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// Superscript / subscript
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if ($element->getFont()->getSuperscript() || $element->getFont()->getSubscript()) {
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$objWriter->startElement($prefix . 'vertAlign');
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if ($element->getFont()->getSuperscript()) {
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$objWriter->writeAttribute('val', 'superscript');
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} elseif ($element->getFont()->getSubscript()) {
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$objWriter->writeAttribute('val', 'subscript');
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}
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$objWriter->endElement();
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}
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// Strikethrough
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$objWriter->startElement($prefix . 'strike');
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$objWriter->writeAttribute('val', ($element->getFont()->getStrikethrough() ? 'true' : 'false'));
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$objWriter->endElement();
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// Color
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if ($element->getFont()->getColor()->getARGB() !== null) {
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$objWriter->startElement($prefix . 'color');
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$objWriter->writeAttribute('rgb', $element->getFont()->getColor()->getARGB());
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$objWriter->endElement();
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}
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// Size
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if ($element->getFont()->getSize() !== null) {
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$objWriter->startElement($prefix . 'sz');
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$objWriter->writeAttribute('val', (string) $element->getFont()->getSize());
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$objWriter->endElement();
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}
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// Underline
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if ($element->getFont()->getUnderline() !== null) {
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$objWriter->startElement($prefix . 'u');
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$objWriter->writeAttribute('val', $element->getFont()->getUnderline());
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$objWriter->endElement();
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}
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$objWriter->endElement();
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}
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// t
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$objWriter->startElement($prefix . 't');
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$objWriter->writeAttribute('xml:space', 'preserve');
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$objWriter->writeRawData(StringHelper::controlCharacterPHP2OOXML($element->getText()));
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$objWriter->endElement();
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$objWriter->endElement();
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}
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}
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/**
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* Write Rich Text.
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*
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* @param RichText|string $richText text string or Rich text
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* @param string $prefix Optional Namespace prefix
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*/
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public function writeRichTextForCharts(XMLWriter $objWriter, $richText = null, string $prefix = ''): void
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{
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if (!($richText instanceof RichText)) {
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$textRun = $richText;
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$richText = new RichText();
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$run = $richText->createTextRun($textRun ?? '');
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$run->setFont(null);
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}
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if ($prefix !== '') {
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$prefix .= ':';
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}
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// Loop through rich text elements
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$elements = $richText->getRichTextElements();
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foreach ($elements as $element) {
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// r
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$objWriter->startElement($prefix . 'r');
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if ($element->getFont() !== null) {
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// rPr
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$objWriter->startElement($prefix . 'rPr');
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$fontSize = $element->getFont()->getSize();
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if (is_numeric($fontSize)) {
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$fontSize *= (($fontSize < 100) ? 100 : 1);
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$objWriter->writeAttribute('sz', (string) $fontSize);
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}
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// Bold
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$objWriter->writeAttribute('b', ($element->getFont()->getBold() ? '1' : '0'));
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// Italic
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$objWriter->writeAttribute('i', ($element->getFont()->getItalic() ? '1' : '0'));
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// Underline
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$underlineType = $element->getFont()->getUnderline();
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switch ($underlineType) {
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case 'single':
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$underlineType = 'sng';
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break;
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case 'double':
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$underlineType = 'dbl';
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break;
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}
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if ($underlineType !== null) {
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$objWriter->writeAttribute('u', $underlineType);
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}
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// Strikethrough
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$objWriter->writeAttribute('strike', ($element->getFont()->getStriketype() ?: 'noStrike'));
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// Superscript/subscript
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if ($element->getFont()->getBaseLine()) {
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$objWriter->writeAttribute('baseline', (string) $element->getFont()->getBaseLine());
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}
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// Color
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$this->writeChartTextColor($objWriter, $element->getFont()->getChartColor(), $prefix);
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// Underscore Color
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$this->writeChartTextColor($objWriter, $element->getFont()->getUnderlineColor(), $prefix, 'uFill');
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// fontName
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if ($element->getFont()->getLatin()) {
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$objWriter->startElement($prefix . 'latin');
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$objWriter->writeAttribute('typeface', $element->getFont()->getLatin());
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$objWriter->endElement();
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}
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if ($element->getFont()->getEastAsian()) {
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$objWriter->startElement($prefix . 'ea');
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$objWriter->writeAttribute('typeface', $element->getFont()->getEastAsian());
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$objWriter->endElement();
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}
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if ($element->getFont()->getComplexScript()) {
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$objWriter->startElement($prefix . 'cs');
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$objWriter->writeAttribute('typeface', $element->getFont()->getComplexScript());
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$objWriter->endElement();
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}
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$objWriter->endElement();
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}
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// t
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$objWriter->startElement($prefix . 't');
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$objWriter->writeRawData(StringHelper::controlCharacterPHP2OOXML($element->getText()));
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$objWriter->endElement();
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$objWriter->endElement();
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}
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}
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private function writeChartTextColor(XMLWriter $objWriter, ?ChartColor $underlineColor, string $prefix, ?string $openTag = ''): void
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{
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if ($underlineColor !== null) {
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$type = $underlineColor->getType();
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$value = $underlineColor->getValue();
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if (!empty($type) && !empty($value)) {
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if ($openTag !== '') {
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$objWriter->startElement($prefix . $openTag);
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}
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$objWriter->startElement($prefix . 'solidFill');
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$objWriter->startElement($prefix . $type);
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$objWriter->writeAttribute('val', $value);
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$alpha = $underlineColor->getAlpha();
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if (is_numeric($alpha)) {
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$objWriter->startElement('a:alpha');
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$objWriter->writeAttribute('val', ChartColor::alphaToXml((int) $alpha));
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$objWriter->endElement();
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}
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$objWriter->endElement(); // srgbClr/schemeClr/prstClr
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$objWriter->endElement(); // solidFill
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if ($openTag !== '') {
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$objWriter->endElement(); // uFill
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}
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}
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}
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}
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/**
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* Flip string table (for index searching).
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*
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* @param array $stringTable Stringtable
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*/
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public function flipStringTable(array $stringTable): array
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{
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// Return value
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$returnValue = [];
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// Loop through stringtable and add flipped items to $returnValue
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foreach ($stringTable as $key => $value) {
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if (!$value instanceof RichText) {
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$returnValue[$value] = $key;
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} elseif ($value instanceof RichText) {
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$returnValue[$value->getHashCode()] = $key;
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}
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}
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return $returnValue;
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}
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}
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