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Refactoring of calculation engine using the multiton pattern to eliminate caching issues when working with multiple workbooks

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Refactoring of calculation engine for improved performance and memory usage
Refactoring of cell object to eliminate data duplication and reduce memory
This commit is contained in:
Mark Baker
2013-02-15 15:42:06 +00:00
parent 6fd6b4d044
commit 3886c47ebe
13 changed files with 2702 additions and 2596 deletions
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Classes/PHPExcel/Writer/HTML.php
+3 -3
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@@ -152,8 +152,8 @@ class PHPExcel_Writer_HTML extends PHPExcel_Writer_Abstract implements PHPExcel_
// garbage collect
$this->_phpExcel->garbageCollect();
$saveDebugLog = PHPExcel_Calculation::getInstance($this->_phpExcel)->writeDebugLog;
PHPExcel_Calculation::getInstance($this->_phpExcel)->writeDebugLog = false;
$saveDebugLog = PHPExcel_Calculation::getInstance($this->_phpExcel)->getDebugLog()->getWriteDebugLog();
PHPExcel_Calculation::getInstance($this->_phpExcel)->getDebugLog()->setWriteDebugLog(FALSE);
$saveArrayReturnType = PHPExcel_Calculation::getArrayReturnType();
PHPExcel_Calculation::setArrayReturnType(PHPExcel_Calculation::RETURN_ARRAY_AS_VALUE);
@@ -184,7 +184,7 @@ class PHPExcel_Writer_HTML extends PHPExcel_Writer_Abstract implements PHPExcel_
fclose($fileHandle);
PHPExcel_Calculation::setArrayReturnType($saveArrayReturnType);
PHPExcel_Calculation::getInstance($this->_phpExcel)->writeDebugLog = $saveDebugLog;
PHPExcel_Calculation::getInstance($this->_phpExcel)->getDebugLog()->setWriteDebugLog($saveDebugLog);
}
/**