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/home/kueuepay/www/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/ColumnIterator.php

<?php

namespace PhpOffice\PhpSpreadsheet\Worksheet;

use Iterator as NativeIterator;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Exception;
use PhpOffice\PhpSpreadsheet\Exception as PhpSpreadsheetException;

/**
 * @implements NativeIterator<string, Column>
 */
class ColumnIterator implements NativeIterator
{
    /**
     * Worksheet to iterate.
     *
     * @var Worksheet
     */
    private $worksheet;

    /**
     * Current iterator position.
     *
     * @var int
     */
    private $currentColumnIndex = 1;

    /**
     * Start position.
     *
     * @var int
     */
    private $startColumnIndex = 1;

    /**
     * End position.
     *
     * @var int
     */
    private $endColumnIndex = 1;

    /**
     * Create a new column iterator.
     *
     * @param Worksheet $worksheet The worksheet to iterate over
     * @param string $startColumn The column address at which to start iterating
     * @param string $endColumn Optionally, the column address at which to stop iterating
     */
    public function __construct(Worksheet $worksheet, $startColumn = 'A', $endColumn = null)
    {
        // Set subject
        $this->worksheet = $worksheet;
        $this->resetEnd($endColumn);
        $this->resetStart($startColumn);
    }

    /**
     * Destructor.
     */
    public function __destruct()
    {
        // @phpstan-ignore-next-line
        $this->worksheet = null;
    }

    /**
     * (Re)Set the start column and the current column pointer.
     *
     * @param string $startColumn The column address at which to start iterating
     *
     * @return $this
     */
    public function resetStart(string $startColumn = 'A')
    {
        $startColumnIndex = Coordinate::columnIndexFromString($startColumn);
        if ($startColumnIndex > Coordinate::columnIndexFromString($this->worksheet->getHighestColumn())) {
            throw new Exception(
                "Start column ({$startColumn}) is beyond highest column ({$this->worksheet->getHighestColumn()})"
            );
        }

        $this->startColumnIndex = $startColumnIndex;
        if ($this->endColumnIndex < $this->startColumnIndex) {
            $this->endColumnIndex = $this->startColumnIndex;
        }
        $this->seek($startColumn);

        return $this;
    }

    /**
     * (Re)Set the end column.
     *
     * @param string $endColumn The column address at which to stop iterating
     *
     * @return $this
     */
    public function resetEnd($endColumn = null)
    {
        $endColumn = $endColumn ?: $this->worksheet->getHighestColumn();
        $this->endColumnIndex = Coordinate::columnIndexFromString($endColumn);

        return $this;
    }

    /**
     * Set the column pointer to the selected column.
     *
     * @param string $column The column address to set the current pointer at
     *
     * @return $this
     */
    public function seek(string $column = 'A')
    {
        $column = Coordinate::columnIndexFromString($column);
        if (($column < $this->startColumnIndex) || ($column > $this->endColumnIndex)) {
            throw new PhpSpreadsheetException(
                "Column $column is out of range ({$this->startColumnIndex} - {$this->endColumnIndex})"
            );
        }
        $this->currentColumnIndex = $column;

        return $this;
    }

    /**
     * Rewind the iterator to the starting column.
     */
    public function rewind(): void
    {
        $this->currentColumnIndex = $this->startColumnIndex;
    }

    /**
     * Return the current column in this worksheet.
     */
    public function current(): Column
    {
        return new Column($this->worksheet, Coordinate::stringFromColumnIndex($this->currentColumnIndex));
    }

    /**
     * Return the current iterator key.
     */
    public function key(): string
    {
        return Coordinate::stringFromColumnIndex($this->currentColumnIndex);
    }

    /**
     * Set the iterator to its next value.
     */
    public function next(): void
    {
        ++$this->currentColumnIndex;
    }

    /**
     * Set the iterator to its previous value.
     */
    public function prev(): void
    {
        --$this->currentColumnIndex;
    }

    /**
     * Indicate if more columns exist in the worksheet range of columns that we're iterating.
     */
    public function valid(): bool
    {
        return $this->currentColumnIndex <= $this->endColumnIndex && $this->currentColumnIndex >= $this->startColumnIndex;
    }
}

[D] AutoFilter
[D] Drawing
[D] Table
[F] AutoFilter.php
[F] AutoFit.php
[F] BaseDrawing.php
[F] CellIterator.php
[F] Column.php
[F] ColumnCellIterator.php
[F] ColumnDimension.php
[F] ColumnIterator.php
[F] Dimension.php
[F] Drawing.php
[F] HeaderFooter.php
[F] HeaderFooterDrawing.php
[F] Iterator.php
[F] MemoryDrawing.php
[F] PageBreak.php
[F] PageMargins.php
[F] PageSetup.php
[F] Protection.php
[F] Row.php
[F] RowCellIterator.php
[F] RowDimension.php
[F] RowIterator.php
[F] SheetView.php
[F] Table.php
[F] Validations.php
[F] Worksheet.php

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