Allow writing Drawing in Cell

src/PhpSpreadsheet/Cell/DefaultValueBinder.php

@@ -9,6 +9,7 @@ use PhpOffice\PhpSpreadsheet\Calculation\Exception as CalculationException;
 use PhpOffice\PhpSpreadsheet\Exception as SpreadsheetException;
 use PhpOffice\PhpSpreadsheet\RichText\RichText;
 use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
+use PhpOffice\PhpSpreadsheet\Worksheet\BaseDrawing;
 use Stringable;
 
 class DefaultValueBinder implements IValueBinder
@@ -33,6 +34,11 @@ class DefaultValueBinder implements IValueBinder
             $value = $value->format('Y-m-d H:i:s');
         } elseif ($value instanceof Stringable) {
             $value = (string) $value;
+        } elseif ($value instanceof BaseDrawing) {
+            $value->setCoordinates($cell->getCoordinate());
+            $value->setResizeProportional(false);
+            $value->setInCell(true);
+            $value->setWorksheet($cell->getWorksheet());
         } else {
             throw new SpreadsheetException('Unable to bind unstringable ' . gettype($value));
         }
@@ -68,6 +74,9 @@ class DefaultValueBinder implements IValueBinder
         if ($value instanceof RichText) {
             return DataType::TYPE_INLINE;
         }
+        if ($value instanceof BaseDrawing) {
+            return DataType::TYPE_DRAWING_IN_CELL;
+        }
         if ($value instanceof Stringable) {
             $value = (string) $value;
         }

tests/PhpSpreadsheetTests/Writer/Xlsx/DrawingInCellTest.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace PhpOffice\PhpSpreadsheetTests\Writer\Xlsx;
 
 use PhpOffice\PhpSpreadsheet\Reader\Xlsx;
+use PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
 use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
 
 class DrawingInCellTest extends AbstractFunctional
@@ -58,4 +59,39 @@ class DrawingInCellTest extends AbstractFunctional
 
         $reloadedSpreadsheet->disconnectWorksheets();
     }
+
+    public function testWriteNewPictureInCell(): void
+    {
+        $file = 'tests/data/Writer/XLSX/drawing_in_cell.xlsx';
+        $reader = new Xlsx();
+        $spreadsheet = $reader->load($file);
+
+        $objDrawing = new Drawing();
+        $objDrawing->setPath('tests/data/Writer/XLSX/blue_square.png');
+
+        $sheet = $spreadsheet->getSheet(1);
+        $sheet->getCell('C10')->setValue($objDrawing);
+
+        // Save spreadsheet to file and read it back
+        $reloadedSpreadsheet = $this->writeAndReload($spreadsheet, 'Xlsx');
+        $spreadsheet->disconnectWorksheets();
+
+        $sheet = $reloadedSpreadsheet->getSheet(1);
+        $drawings = $sheet->getInCellDrawingCollection();
+        self::assertCount(2, $drawings);
+
+        /** @var ?Drawing $drawing */
+        $drawing = $sheet->getCell('C10')->getValue();
+
+        if ($drawing === null) {
+            self::fail('Unexpected null drawing');
+        } else {
+            self::assertSame(IMAGETYPE_PNG, $drawing->getType());
+            self::assertSame('C10', $drawing->getCoordinates());
+            self::assertSame(100, $drawing->getWidth());
+            self::assertSame(100, $drawing->getHeight());
+        }
+
+        $reloadedSpreadsheet->disconnectWorksheets();
+    }
 }