初始化仓库

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/CellReferenceHelper.php

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+<?php
+
+namespace PhpOffice\PhpSpreadsheet;
+
+use PhpOffice\PhpSpreadsheet\Cell\AddressRange;
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+
+class CellReferenceHelper
+{
+    /**
+     * @var string
+     */
+    protected $beforeCellAddress;
+
+    /**
+     * @var int
+     */
+    protected $beforeColumn;
+
+    /**
+     * @var int
+     */
+    protected $beforeRow;
+
+    /**
+     * @var int
+     */
+    protected $numberOfColumns;
+
+    /**
+     * @var int
+     */
+    protected $numberOfRows;
+
+    public function __construct(string $beforeCellAddress = 'A1', int $numberOfColumns = 0, int $numberOfRows = 0)
+    {
+        $this->beforeCellAddress = str_replace('$', '', $beforeCellAddress);
+        $this->numberOfColumns = $numberOfColumns;
+        $this->numberOfRows = $numberOfRows;
+
+        // Get coordinate of $beforeCellAddress
+        [$beforeColumn, $beforeRow] = Coordinate::coordinateFromString($beforeCellAddress);
+        $this->beforeColumn = (int) Coordinate::columnIndexFromString($beforeColumn);
+        $this->beforeRow = (int) $beforeRow;
+    }
+
+    public function beforeCellAddress(): string
+    {
+        return $this->beforeCellAddress;
+    }
+
+    public function refreshRequired(string $beforeCellAddress, int $numberOfColumns, int $numberOfRows): bool
+    {
+        return $this->beforeCellAddress !== $beforeCellAddress ||
+            $this->numberOfColumns !== $numberOfColumns ||
+            $this->numberOfRows !== $numberOfRows;
+    }
+
+    public function updateCellReference(string $cellReference = 'A1', bool $includeAbsoluteReferences = false): string
+    {
+        if (Coordinate::coordinateIsRange($cellReference)) {
+            throw new Exception('Only single cell references may be passed to this method.');
+        }
+
+        // Get coordinate of $cellReference
+        [$newColumn, $newRow] = Coordinate::coordinateFromString($cellReference);
+        $newColumnIndex = (int) Coordinate::columnIndexFromString(str_replace('$', '', $newColumn));
+        $newRowIndex = (int) str_replace('$', '', $newRow);
+
+        $absoluteColumn = $newColumn[0] === '$' ? '$' : '';
+        $absoluteRow = $newRow[0] === '$' ? '$' : '';
+        // Verify which parts should be updated
+        if ($includeAbsoluteReferences === false) {
+            $updateColumn = (($absoluteColumn !== '$') && $newColumnIndex >= $this->beforeColumn);
+            $updateRow = (($absoluteRow !== '$') && $newRowIndex >= $this->beforeRow);
+        } else {
+            $updateColumn = ($newColumnIndex >= $this->beforeColumn);
+            $updateRow = ($newRowIndex >= $this->beforeRow);
+        }
+
+        // Create new column reference
+        if ($updateColumn) {
+            $newColumn = $this->updateColumnReference($newColumnIndex, $absoluteColumn);
+        }
+
+        // Create new row reference
+        if ($updateRow) {
+            $newRow = $this->updateRowReference($newRowIndex, $absoluteRow);
+        }
+
+        // Return new reference
+        return "{$newColumn}{$newRow}";
+    }
+
+    public function cellAddressInDeleteRange(string $cellAddress): bool
+    {
+        [$cellColumn, $cellRow] = Coordinate::coordinateFromString($cellAddress);
+        $cellColumnIndex = Coordinate::columnIndexFromString($cellColumn);
+        //    Is cell within the range of rows/columns if we're deleting
+        if (
+            $this->numberOfRows < 0 &&
+            ($cellRow >= ($this->beforeRow + $this->numberOfRows)) &&
+            ($cellRow < $this->beforeRow)
+        ) {
+            return true;
+        } elseif (
+            $this->numberOfColumns < 0 &&
+            ($cellColumnIndex >= ($this->beforeColumn + $this->numberOfColumns)) &&
+            ($cellColumnIndex < $this->beforeColumn)
+        ) {
+            return true;
+        }
+
+        return false;
+    }
+
+    protected function updateColumnReference(int $newColumnIndex, string $absoluteColumn): string
+    {
+        $newColumn = Coordinate::stringFromColumnIndex(min($newColumnIndex + $this->numberOfColumns, AddressRange::MAX_COLUMN_INT));
+
+        return $absoluteColumn . $newColumn;
+    }
+
+    protected function updateRowReference(int $newRowIndex, string $absoluteRow): string
+    {
+        $newRow = $newRowIndex + $this->numberOfRows;
+        $newRow = ($newRow > AddressRange::MAX_ROW) ? AddressRange::MAX_ROW : $newRow;
+
+        return $absoluteRow . (string) $newRow;
+    }
+}