<?php

namespace PhpOffice\PhpSpreadsheet\Worksheet;

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

/**
 * @extends CellIterator<string>
 */
class RowCellIterator extends CellIterator
{
    /**
     * Current iterator position.
     *
     * @var int
     */
    private $currentColumnIndex;

    /**
     * Row index.
     *
     * @var int
     */
    private $rowIndex = 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 int $rowIndex The row that we want to iterate
     * @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, $rowIndex = 1, $startColumn = 'A', $endColumn = null)
    {
        // Set subject and row index
        $this->worksheet = $worksheet;
        $this->cellCollection = $worksheet->getCellCollection();
        $this->rowIndex = $rowIndex;
        $this->resetEnd($endColumn);
        $this->resetStart($startColumn);
    }

    /**
     * (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')
    {
        $this->startColumnIndex = Coordinate::columnIndexFromString($startColumn);
        $this->adjustForExistingOnlyRange();
        $this->seek(Coordinate::stringFromColumnIndex($this->startColumnIndex));

        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);
        $this->adjustForExistingOnlyRange();

        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')
    {
        $columnId = Coordinate::columnIndexFromString($column);
        if ($this->onlyExistingCells && !($this->cellCollection->has($column . $this->rowIndex))) {
            throw new PhpSpreadsheetException('In "IterateOnlyExistingCells" mode and Cell does not exist');
        }
        if (($columnId < $this->startColumnIndex) || ($columnId > $this->endColumnIndex)) {
            throw new PhpSpreadsheetException("Column $column is out of range ({$this->startColumnIndex} - {$this->endColumnIndex})");
        }
        $this->currentColumnIndex = $columnId;

        return $this;
    }

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

    /**
     * Return the current cell in this worksheet row.
     */
    public function current(): ?Cell
    {
        $cellAddress = Coordinate::stringFromColumnIndex($this->currentColumnIndex) . $this->rowIndex;

        return $this->cellCollection->has($cellAddress)
            ? $this->cellCollection->get($cellAddress)
            : (
                $this->ifNotExists === self::IF_NOT_EXISTS_CREATE_NEW
                ? $this->worksheet->createNewCell($cellAddress)
                : null
            );
    }

    /**
     * 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
    {
        do {
            ++$this->currentColumnIndex;
        } while (($this->onlyExistingCells) && (!$this->cellCollection->has(Coordinate::stringFromColumnIndex($this->currentColumnIndex) . $this->rowIndex)) && ($this->currentColumnIndex <= $this->endColumnIndex));
    }

    /**
     * Set the iterator to its previous value.
     */
    public function prev(): void
    {
        do {
            --$this->currentColumnIndex;
        } while (($this->onlyExistingCells) && (!$this->cellCollection->has(Coordinate::stringFromColumnIndex($this->currentColumnIndex) . $this->rowIndex)) && ($this->currentColumnIndex >= $this->startColumnIndex));
    }

    /**
     * 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;
    }

    /**
     * Return the current iterator position.
     */
    public function getCurrentColumnIndex(): int
    {
        return $this->currentColumnIndex;
    }

    /**
     * Validate start/end values for "IterateOnlyExistingCells" mode, and adjust if necessary.
     */
    protected function adjustForExistingOnlyRange(): void
    {
        if ($this->onlyExistingCells) {
            while ((!$this->cellCollection->has(Coordinate::stringFromColumnIndex($this->startColumnIndex) . $this->rowIndex)) && ($this->startColumnIndex <= $this->endColumnIndex)) {
                ++$this->startColumnIndex;
            }
            while ((!$this->cellCollection->has(Coordinate::stringFromColumnIndex($this->endColumnIndex) . $this->rowIndex)) && ($this->endColumnIndex >= $this->startColumnIndex)) {
                --$this->endColumnIndex;
            }
        }
    }
}

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

About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

• Simplifying Payments, One Tap at a Time.
• Reinventing Your Wallet for Modern Convenience.
• Smart Payments for a Effortless Lifestyle.
• Experience the Ease of Tap and Pay.
• Innovative Solutions for Your Daily Transactions.

FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

Download the app and sign up using your email or phone number, then complete the verification process.

Is my payment information secure?

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Can I add multiple cards to my NFC Pay wallet?

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How do I transfer money to another user?

Go to the transfer section, select the recipient, enter the amount, and authorize the transfer.

What should I do if I forget my PIN?

Use the “Forgot PIN” feature in the app to reset it following the provided instructions.

How can I activate my merchant account?

Sign up for a merchant account through the app and follow the setup instructions to start accepting payments.

Can I track my payment status?

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