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<?php
namespace PhpOffice\PhpSpreadsheet\Writer;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
interface IWriter
{
public const SAVE_WITH_CHARTS = 1;
public const DISABLE_PRECALCULATE_FORMULAE = 2;
/**
* IWriter constructor.
*
* @param Spreadsheet $spreadsheet The spreadsheet that we want to save using this Writer
*/
public function __construct(Spreadsheet $spreadsheet);
/**
* Write charts in workbook?
* If this is true, then the Writer will write definitions for any charts that exist in the PhpSpreadsheet object.
* If false (the default) it will ignore any charts defined in the PhpSpreadsheet object.
*
* @return bool
*/
public function getIncludeCharts();
/**
* Set write charts in workbook
* Set to true, to advise the Writer to include any charts that exist in the PhpSpreadsheet object.
* Set to false (the default) to ignore charts.
*
* @param bool $includeCharts
*
* @return IWriter
*/
public function setIncludeCharts($includeCharts);
/**
* Get Pre-Calculate Formulas flag
* If this is true (the default), then the writer will 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
* If false, then formulae are not calculated on save. This is faster for saving in PhpSpreadsheet, but slower
* when opening the resulting file in MS Excel, because Excel has to recalculate the formulae itself.
*
* @return bool
*/
public function getPreCalculateFormulas();
/**
* Set Pre-Calculate Formulas
* Set to true (the default) to advise the Writer to calculate all formulae on save
* Set to false to prevent precalculation of formulae on save.
*
* @param bool $precalculateFormulas Pre-Calculate Formulas?
*
* @return IWriter
*/
public function setPreCalculateFormulas($precalculateFormulas);
/**
* Save PhpSpreadsheet to file.
*
* @param resource|string $filename Name of the file to save
* @param int $flags Flags that can change the behaviour of the Writer:
* self::SAVE_WITH_CHARTS Save any charts that are defined (if the Writer supports Charts)
* self::DISABLE_PRECALCULATE_FORMULAE Don't Precalculate formulae before saving the file
*
* @throws Exception
*/
public function save($filename, int $flags = 0): void;
/**
* Get use disk caching where possible?
*
* @return bool
*/
public function getUseDiskCaching();
/**
* Set use disk caching where possible?
*
* @param bool $useDiskCache
* @param string $cacheDirectory Disk caching directory
*
* @return IWriter
*/
public function setUseDiskCaching($useDiskCache, $cacheDirectory = null);
/**
* Get disk caching directory.
*
* @return string
*/
public function getDiskCachingDirectory();
}
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