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<?php namespace PhpOffice\PhpSpreadsheet\Writer; abstract class BaseWriter implements IWriter { /** * Write charts that are defined in the workbook? * Identifies whether the Writer should write definitions for any charts that exist in the PhpSpreadsheet object;. * * @var bool */ protected $includeCharts = false; /** * Pre-calculate formulas * Forces PhpSpreadsheet to recalculate all formulae in a workbook when saving, so that the pre-calculated values are * immediately available to MS Excel or other office spreadsheet viewer when opening the file. * * @var bool */ protected $preCalculateFormulas = true; /** * Use disk caching where possible? * * @var bool */ private $useDiskCaching = false; /** * Disk caching directory. * * @var string */ private $diskCachingDirectory = './'; /** * @var resource */ protected $fileHandle; /** * @var bool */ private $shouldCloseFile; public function getIncludeCharts() { return $this->includeCharts; } public function setIncludeCharts($pValue) { $this->includeCharts = (bool) $pValue; return $this; } public function getPreCalculateFormulas() { return $this->preCalculateFormulas; } public function setPreCalculateFormulas($pValue) { $this->preCalculateFormulas = (bool) $pValue; return $this; } public function getUseDiskCaching() { return $this->useDiskCaching; } public function setUseDiskCaching($pValue, $pDirectory = null) { $this->useDiskCaching = $pValue; if ($pDirectory !== null) { if (is_dir($pDirectory)) { $this->diskCachingDirectory = $pDirectory; } else { throw new Exception("Directory does not exist: $pDirectory"); } } return $this; } public function getDiskCachingDirectory() { return $this->diskCachingDirectory; } /** * Open file handle. * * @param resource|string $filename */ public function openFileHandle($filename): void { if (is_resource($filename)) { $this->fileHandle = $filename; $this->shouldCloseFile = false; return; } $fileHandle = $filename ? fopen($filename, 'wb+') : false; if ($fileHandle === false) { throw new Exception('Could not open file "' . $filename . '" for writing.'); } $this->fileHandle = $fileHandle; $this->shouldCloseFile = true; } /** * Close file handle only if we opened it ourselves. */ protected function maybeCloseFileHandle(): void { if ($this->shouldCloseFile) { if (!fclose($this->fileHandle)) { throw new Exception('Could not close file after writing.'); } } } }