From 27fadb302a2be45d7e9d963e9bbcf55560d0ff29 Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre.alapetite@alexandra.dk>
Date: Tue, 8 Oct 2024 15:36:05 +0200
Subject: [PATCH] Add function getFullCalcOnLoad

---
 README.md              |  2 ++
 src/XlsxFastEditor.php | 23 +++++++++++++++++++++++
 tests/test.php         |  2 ++
 3 files changed, 27 insertions(+)

diff --git a/README.md b/README.md
index 1380089..79eb5c8 100644
--- a/README.md
+++ b/README.md
@@ -50,8 +50,10 @@ try {
 	$nbWorksheets = $xlsxFastEditor->getWorksheetCount();
 	$worksheetName = $xlsxFastEditor->getWorksheetName(1);
 	$worksheetId1 = $xlsxFastEditor->getWorksheetNumber('Sheet1');
+
 	// If you want to force Excel to recalculate formulas on next load:
 	$xlsxFastEditor->setFullCalcOnLoad($worksheetId1, true);
+	$fullCalcOnLoad = $xlsxFastEditor->getFullCalcOnLoad($worksheetId1);
 
 	// Direct read/write access
 	$fx = $xlsxFastEditor->readFormula($worksheetId1, 'A1');
diff --git a/src/XlsxFastEditor.php b/src/XlsxFastEditor.php
index d27ed50..8d43f7f 100644
--- a/src/XlsxFastEditor.php
+++ b/src/XlsxFastEditor.php
@@ -358,6 +358,29 @@ public function setFullCalcOnLoad(int $sheetNumber, bool $value): void
 		}
 	}
 
+	/**
+	 * Get the *Full calculation on load* policy for the specified worksheet.
+	 * @param int $sheetNumber Worksheet number (base 1)
+	 * @throws XlsxFastEditorFileFormatException
+	 * @throws XlsxFastEditorXmlException
+	 */
+	public function getFullCalcOnLoad(int $sheetNumber): ?bool
+	{
+		$dom = $this->getDomFromPath(self::getWorksheetPath($sheetNumber));
+		$sheetCalcPrs = $dom->getElementsByTagName('sheetCalcPr');
+		if ($sheetCalcPrs->length > 0) {
+			$sheetCalcPr = $sheetCalcPrs[0];
+			if ($sheetCalcPr instanceof \DOMElement) {
+				$fullCalcOnLoad = $sheetCalcPr->getAttribute('fullCalcOnLoad');
+				if ($fullCalcOnLoad !== '') {
+					$fullCalcOnLoad = strtolower(trim($fullCalcOnLoad));
+					return in_array($fullCalcOnLoad, ['true', '1'], true);
+				}
+			}
+		}
+		return null;
+	}
+
 	/**
 	 * Get the row of the given number in the given worksheet.
 	 * @param int $sheetNumber Worksheet number (base 1)
diff --git a/tests/test.php b/tests/test.php
index a6eef8c..66a688f 100644
--- a/tests/test.php
+++ b/tests/test.php
@@ -134,7 +134,9 @@
 	// Regex
 	assert($xlsxFastEditor->textReplace('/Hello/i', 'World') > 0);
 
+	assert($xlsxFastEditor->getFullCalcOnLoad($sheet1) == null);
 	$xlsxFastEditor->setFullCalcOnLoad($sheet1, true);
+	assert($xlsxFastEditor->getFullCalcOnLoad($sheet1) === true);
 
 	$xlsxFastEditor->save();