Update Writer folder structure to match Reader new structure

src/Spout/Writer/XLSX/Internal/Worksheet.php

@@ -0,0 +1,177 @@
+<?php
+
+namespace Box\Spout\Writer\XLSX\Internal;
+
+use Box\Spout\Common\Exception\InvalidArgumentException;
+use Box\Spout\Common\Exception\IOException;
+use Box\Spout\Writer\XLSX\Helper\CellHelper;
+
+/**
+ * Class Worksheet
+ * Represents a worksheet within a XLSX file. The difference with the Sheet object is
+ * that this class provides an interface to write data
+ *
+ * @package Box\Spout\Writer\XLSX\Internal
+ */
+class Worksheet
+{
+    const SHEET_XML_FILE_HEADER = <<<EOD
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
+EOD;
+
+    /** @var \Box\Spout\Writer\XLSX\Sheet The "external" sheet */
+    protected $externalSheet;
+
+    /** @var string Path to the XML file that will contain the sheet data */
+    protected $worksheetFilePath;
+
+    /** @var \Box\Spout\Writer\XLSX\Helper\SharedStringsHelper Helper to write shared strings */
+    protected $sharedStringsHelper;
+
+    /** @var bool Whether inline or shared strings should be used */
+    protected $shouldUseInlineStrings;
+
+    /** @var \Box\Spout\Common\Escaper\XLSX Strings escaper */
+    protected $stringsEscaper;
+
+    /** @var Resource Pointer to the sheet data file (e.g. xl/worksheets/sheet1.xml) */
+    protected $sheetFilePointer;
+
+    /** @var int */
+    protected $lastWrittenRowIndex = 0;
+
+    /**
+     * @param \Box\Spout\Writer\XLSX\Sheet $externalSheet The associated "external" sheet
+     * @param string $worksheetFilesFolder Temporary folder where the files to create the XLSX will be stored
+     * @param \Box\Spout\Writer\XLSX\Helper\SharedStringsHelper $sharedStringsHelper Helper for shared strings
+     * @param bool $shouldUseInlineStrings Whether inline or shared strings should be used
+     * @throws \Box\Spout\Common\Exception\IOException If the sheet data file cannot be opened for writing
+     */
+    public function __construct($externalSheet, $worksheetFilesFolder, $sharedStringsHelper, $shouldUseInlineStrings)
+    {
+        $this->externalSheet = $externalSheet;
+        $this->sharedStringsHelper = $sharedStringsHelper;
+        $this->shouldUseInlineStrings = $shouldUseInlineStrings;
+
+        $this->stringsEscaper = new \Box\Spout\Common\Escaper\XLSX();
+
+        $this->worksheetFilePath = $worksheetFilesFolder . '/' . strtolower($this->externalSheet->getName()) . '.xml';
+        $this->startSheet();
+    }
+
+    /**
+     * Prepares the worksheet to accept data
+     *
+     * @return void
+     * @throws \Box\Spout\Common\Exception\IOException If the sheet data file cannot be opened for writing
+     */
+    protected function startSheet()
+    {
+        $this->sheetFilePointer = fopen($this->worksheetFilePath, 'w');
+        $this->throwIfSheetFilePointerIsNotAvailable();
+
+        fwrite($this->sheetFilePointer, self::SHEET_XML_FILE_HEADER . PHP_EOL);
+        fwrite($this->sheetFilePointer, '    <sheetData>' . PHP_EOL);
+    }
+
+    /**
+     * @return \Box\Spout\Writer\XLSX\Sheet The "external" sheet
+     */
+    public function getExternalSheet()
+    {
+        return $this->externalSheet;
+    }
+
+    /**
+     * @return int The index of the last written row
+     */
+    public function getLastWrittenRowIndex()
+    {
+        return $this->lastWrittenRowIndex;
+    }
+
+    /**
+     * @return int The ID of the worksheet
+     */
+    public function getId()
+    {
+        // sheet index is zero-based, while ID is 1-based
+        return $this->externalSheet->getIndex() + 1;
+    }
+
+    /**
+     * Checks if the book has been created. Throws an exception if not created yet.
+     *
+     * @return void
+     * @throws \Box\Spout\Common\Exception\IOException If the sheet data file cannot be opened for writing
+     */
+    protected function throwIfSheetFilePointerIsNotAvailable()
+    {
+        if (!$this->sheetFilePointer) {
+            throw new IOException('Unable to open sheet for writing.');
+        }
+    }
+
+    /**
+     * Adds data to the worksheet.
+     *
+     * @param array $dataRow Array containing data to be written.
+     *          Example $dataRow = ['data1', 1234, null, '', 'data5'];
+     * @return void
+     * @throws \Box\Spout\Common\Exception\IOException If the data cannot be written
+     * @throws \Box\Spout\Common\Exception\InvalidArgumentException If a cell value's type is not supported
+     */
+    public function addRow($dataRow)
+    {
+        $cellNumber = 0;
+        $rowIndex = $this->lastWrittenRowIndex + 1;
+        $numCells = count($dataRow);
+
+        $data = '        <row r="' . $rowIndex . '" spans="1:' . $numCells . '">' . PHP_EOL;
+
+        foreach($dataRow as $cellValue) {
+            $columnIndex = CellHelper::getCellIndexFromColumnIndex($cellNumber);
+            $data .= '            <c r="' . $columnIndex . $rowIndex . '"';
+
+            if (CellHelper::isNonEmptyString($cellValue)) {
+                if ($this->shouldUseInlineStrings) {
+                    $data .= ' t="inlineStr"><is><t>' . $this->stringsEscaper->escape($cellValue) . '</t></is></c>' . PHP_EOL;
+                } else {
+                    $sharedStringId = $this->sharedStringsHelper->writeString($cellValue);
+                    $data .= ' t="s"><v>' . $sharedStringId . '</v></c>' . PHP_EOL;
+                }
+            } else if (CellHelper::isNumeric($cellValue) || CellHelper::isBoolean($cellValue)) {
+                $data .= '><v>' . $cellValue . '</v></c>' . PHP_EOL;
+            } else if (empty($cellValue)) {
+                $data .= '/>' . PHP_EOL;
+            } else {
+                throw new InvalidArgumentException('Trying to add a value with an unsupported type: ' . gettype($cellValue));
+            }
+
+            $cellNumber++;
+        }
+
+        $data .= '        </row>' . PHP_EOL;
+
+        $wasWriteSuccessful = fwrite($this->sheetFilePointer, $data);
+        if ($wasWriteSuccessful === false) {
+            throw new IOException('Unable to write data in ' . $this->worksheetFilePath);
+        }
+
+        // only update the count if the write worked
+        $this->lastWrittenRowIndex++;
+    }
+
+    /**
+     * Closes the worksheet
+     *
+     * @return void
+     */
+    public function close()
+    {
+        fwrite($this->sheetFilePointer, '    </sheetData>' . PHP_EOL);
+        fwrite($this->sheetFilePointer, '</worksheet>');
+        fclose($this->sheetFilePointer);
+    }
+}