Remove rowStyle reference and replace it by new RegisteredStyle class

src/Spout/Writer/Common/Manager/RegisteredStyle.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Box\Spout\Writer\Common\Manager;
+
+use Box\Spout\Common\Entity\Style\Style;
+
+class RegisteredStyle
+{
+    /**
+     * @var Style
+     */
+    private $style;
+
+    /**
+     * @var bool
+     */
+    private $isRowStyle;
+
+    public function __construct(Style $style, bool $isRowStyle)
+    {
+        $this->style = $style;
+        $this->isRowStyle = $isRowStyle;
+    }
+
+    public function getStyle() : Style
+    {
+        return $this->style;
+    }
+
+    public function isRowStyle() : bool
+    {
+        return $this->isRowStyle;
+    }
+}

src/Spout/Writer/ODS/Manager/WorksheetManager.php

@@ -10,6 +10,7 @@ use Box\Spout\Common\Exception\IOException;
 use Box\Spout\Common\Helper\Escaper\ODS as ODSEscaper;
 use Box\Spout\Common\Helper\StringHelper;
 use Box\Spout\Writer\Common\Entity\Worksheet;
+use Box\Spout\Writer\Common\Manager\RegisteredStyle;
 use Box\Spout\Writer\Common\Manager\Style\StyleMerger;
 use Box\Spout\Writer\Common\Manager\WorksheetManagerInterface;
 use Box\Spout\Writer\ODS\Manager\Style\StyleManager;
@@ -104,8 +105,8 @@ class WorksheetManager implements WorksheetManagerInterface
      *
      * @param Worksheet $worksheet The worksheet to add the row to
      * @param Row $row The row to be added
-     * @throws IOException If the data cannot be written
      * @throws InvalidArgumentException If a cell value's type is not supported
+     * @throws IOException If the data cannot be written
      * @return void
      */
     public function addRow(Worksheet $worksheet, Row $row)
@@ -125,7 +126,13 @@ class WorksheetManager implements WorksheetManagerInterface
             $nextCell = isset($cells[$nextCellIndex]) ? $cells[$nextCellIndex] : null;
 
             if ($nextCell === null || $cell->getValue() !== $nextCell->getValue()) {
-                $data .= $this->applyStyleAndGetCellXML($cell, $rowStyle, $currentCellIndex, $nextCellIndex);
+                $registeredStyle = $this->applyStyleAndRegister($cell, $rowStyle);
+                $cellStyle = $registeredStyle->getStyle();
+                if ($registeredStyle->isRowStyle()) {
+                    $rowStyle = $cellStyle;
+                }
+
+                $data .= $this->getCellXMLWithStyle($cell, $cellStyle, $currentCellIndex, $nextCellIndex);
                 $currentCellIndex = $nextCellIndex;
             }
 
@@ -146,17 +153,15 @@ class WorksheetManager implements WorksheetManagerInterface
 
     /**
      * Applies styles to the given style, merging the cell's style with its row's style
-     * Then builds and returns xml for the cell.
      *
      * @param Cell $cell
      * @param Style $rowStyle
-     * @param int $currentCellIndex
-     * @param int $nextCellIndex
      * @throws InvalidArgumentException If a cell value's type is not supported
-     * @return string
+     * @return RegisteredStyle
      */
-    private function applyStyleAndGetCellXML(Cell $cell, Style &$rowStyle, $currentCellIndex, $nextCellIndex)
+    private function applyStyleAndRegister(Cell $cell, Style $rowStyle) : RegisteredStyle
     {
+        $isRowStyle = false;
         if ($cell->getStyle()->isEmpty()) {
             $cell->setStyle($rowStyle);
 
@@ -166,7 +171,7 @@ class WorksheetManager implements WorksheetManagerInterface
                 $registeredStyle = $this->styleManager->registerStyle($managedStyle->getStyle());
             } else {
                 $registeredStyle = $this->styleManager->registerStyle($rowStyle);
-                $rowStyle = $registeredStyle;
+                $isRowStyle = true;
             }
         } else {
             $mergedCellAndRowStyle = $this->styleMerger->merge($cell->getStyle(), $rowStyle);
@@ -182,7 +187,12 @@ class WorksheetManager implements WorksheetManagerInterface
             $registeredStyle = $this->styleManager->registerStyle($newCellStyle);
         }
 
-        $styleIndex = $registeredStyle->getId() + 1; // 1-based
+        return new RegisteredStyle($registeredStyle, $isRowStyle);
+    }
+
+    private function getCellXMLWithStyle(Cell $cell, Style $style, int $currentCellIndex, int $nextCellIndex) : string
+    {
+        $styleIndex = $style->getId() + 1; // 1-based
 
         $numTimesValueRepeated = ($nextCellIndex - $currentCellIndex);
 

src/Spout/Writer/XLSX/Manager/WorksheetManager.php

@@ -14,6 +14,7 @@ use Box\Spout\Writer\Common\Creator\InternalEntityFactory;
 use Box\Spout\Writer\Common\Entity\Options;
 use Box\Spout\Writer\Common\Entity\Worksheet;
 use Box\Spout\Writer\Common\Helper\CellHelper;
+use Box\Spout\Writer\Common\Manager\RegisteredStyle;
 use Box\Spout\Writer\Common\Manager\RowManager;
 use Box\Spout\Writer\Common\Manager\Style\StyleMerger;
 use Box\Spout\Writer\Common\Manager\WorksheetManagerInterface;
@@ -160,7 +161,12 @@ EOD;
         $rowXML = '<row r="' . $rowIndexOneBased . '" spans="1:' . $numCells . '">';
 
         foreach ($row->getCells() as $columnIndexZeroBased => $cell) {
-            $rowXML .= $this->applyStyleAndGetCellXML($cell, $rowStyle, $rowIndexOneBased, $columnIndexZeroBased);
+            $registeredStyle = $this->applyStyleAndRegister($cell, $rowStyle);
+            $cellStyle = $registeredStyle->getStyle();
+            if ($registeredStyle->isRowStyle()) {
+                $rowStyle = $cellStyle;
+            }
+            $rowXML .= $this->getCellXML($rowIndexOneBased, $columnIndexZeroBased, $cell, $cellStyle->getId());
         }
 
         $rowXML .= '</row>';
@@ -173,18 +179,16 @@ EOD;
 
     /**
      * Applies styles to the given style, merging the cell's style with its row's style
-     * Then builds and returns xml for the cell.
      *
      * @param Cell  $cell
      * @param Style $rowStyle
-     * @param int   $rowIndexOneBased
-     * @param int   $columnIndexZeroBased
      *
      * @throws InvalidArgumentException If the given value cannot be processed
-     * @return string
+     * @return RegisteredStyle
      */
-    private function applyStyleAndGetCellXML(Cell $cell, Style &$rowStyle, $rowIndexOneBased, $columnIndexZeroBased)
+    private function applyStyleAndRegister(Cell $cell, Style $rowStyle) : RegisteredStyle
     {
+        $isRowStyle = false;
         if ($cell->getStyle()->isEmpty()) {
             $cell->setStyle($rowStyle);
 
@@ -194,7 +198,7 @@ EOD;
                 $registeredStyle = $this->styleManager->registerStyle($managedStyle->getStyle());
             } else {
                 $registeredStyle = $this->styleManager->registerStyle($rowStyle);
-                $rowStyle = $registeredStyle;
+                $isRowStyle = true;
             }
         } else {
             $mergedCellAndRowStyle = $this->styleMerger->merge($cell->getStyle(), $rowStyle);
@@ -211,7 +215,7 @@ EOD;
             $registeredStyle = $this->styleManager->registerStyle($newCellStyle);
         }
 
-        return $this->getCellXML($rowIndexOneBased, $columnIndexZeroBased, $cell, $registeredStyle->getId());
+        return new RegisteredStyle($registeredStyle, $isRowStyle);
     }
 
     /**