Init

README.md

@@ -31,11 +31,11 @@ composer require odan/excel
 ## Usage
 
 ```php
-use Odan\Excel\ExcelWriter;
-use Odan\Excel\ZipFile;
+use Odan\Excel\ExcelWorkbook;
+use Odan\Excel\ExcelStream;
 
-$file = new ZipFile();
-$excel = new ExcelWriter($file);
+$file = new ExcelStream();
+$excel = new ExcelWorkbook($file);
 
 // Change sheet name
 $excel->setSheetName('My Sheet');

src/ExcelSheet.php

@@ -0,0 +1,150 @@
+<?php
+
+namespace Odan\Excel;
+
+use DOMDocument;
+use DOMNode;
+
+final class ExcelSheet
+{
+    private DOMDocument $sheetXml;
+
+    private DOMNode $sheetData;
+
+    private int $rowIndex = 0;
+
+    private string $sheetName = 'Sheet1';
+
+    private SharedStrings $sharedStrings;
+
+    public function __construct(SharedStrings $sharedStrings)
+    {
+        $this->sharedStrings = $sharedStrings;
+        $this->initSheetXml();
+    }
+
+    public function setSheetName(string $sheetName): void
+    {
+        $this->sheetName = $sheetName;
+    }
+
+    public function addHeader(array $values): void
+    {
+        $row = $this->sheetXml->createElement('row');
+        $this->sheetData->appendChild($row);
+        $row->setAttribute('r', (string)++$this->rowIndex);
+
+        // @todo dynamic spans
+        $row->setAttribute('spans', '1:3');
+
+        foreach ($values as $colIndex => $value) {
+            $column = $this->sheetXml->createElement('c');
+            $column->setAttribute('r', $this->mapRowColumnToString($this->rowIndex, $colIndex + 1));
+            $row->appendChild($column);
+
+            // Apply the cell style by referencing it through the s attribute
+            // 1 = bold style
+            $column->setAttribute('s', '1');
+            $column->setAttribute('t', 's');
+            $sharedStringIndex = $this->sharedStrings->addString($value);
+            $valueElement = $this->sheetXml->createElement('v', (string)$sharedStringIndex);
+            $column->appendChild($valueElement);
+        }
+    }
+
+    public function addRow(array $values): void
+    {
+        $row = $this->sheetXml->createElement('row');
+        $this->sheetData->appendChild($row);
+        $row->setAttribute('r', (string)++$this->rowIndex);
+        // @todo dynamic spans
+        $row->setAttribute('spans', '1:3');
+
+        foreach ($values as $colIndex => $value) {
+            $column = $this->sheetXml->createElement('c');
+            $column->setAttribute('r', $this->mapRowColumnToString($this->rowIndex, $colIndex + 1));
+            $row->appendChild($column);
+
+            // s = 0 = Normal font (see styles.xml)
+            $column->setAttribute('s', '0');
+            $column->setAttribute('t', 's');
+            $sharedStringIndex = $this->sharedStrings->addString($value);
+            $valueNode = $this->sheetXml->createElement('v', (string)$sharedStringIndex);
+            $column->appendChild($valueNode);
+        }
+    }
+
+    private function mapRowColumnToString(int $row, int $column): string
+    {
+        $columnLetter = '';
+
+        while ($column > 0) {
+            $remainder = ($column - 1) % 26;
+            $columnLetter = chr(65 + $remainder) . $columnLetter;
+            $column = floor(($column - $remainder) / 26);
+        }
+
+        // Combine the column letter(s) and row number to form the string
+        return $columnLetter . $row;
+    }
+
+    public function createSheetXml(): string
+    {
+        return (string)$this->sheetXml->saveXML();
+    }
+
+    private function initSheetXml(): void
+    {
+        // https://learn.microsoft.com/en-us/office/open-xml/working-with-sheets
+
+        $this->sheetXml = new DOMDocument('1.0', 'UTF-8');
+        $this->sheetXml->formatOutput = true;
+        $this->sheetXml->xmlStandalone = true;
+
+        $worksheet = $this->sheetXml->createElement('worksheet');
+        $this->sheetXml->appendChild($worksheet);
+        $worksheet->setAttribute('xmlns', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
+        $worksheet->setAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');
+        $worksheet->setAttribute('xmlns:mc', 'http://schemas.openxmlformats.org/markup-compatibility/2006');
+        $worksheet->setAttribute('xmlns:x14ac', 'http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac');
+        $worksheet->setAttribute('xmlns:xr', 'http://schemas.microsoft.com/office/spreadsheetml/2014/revision');
+        $worksheet->setAttribute('xmlns:xr2', 'http://schemas.microsoft.com/office/spreadsheetml/2015/revision2');
+        $worksheet->setAttribute('xmlns:xr3', 'http://schemas.microsoft.com/office/spreadsheetml/2016/revision3');
+        $worksheet->setAttribute('mc:Ignorable', 'x14ac xr xr2 xr3');
+        $worksheet->setAttribute('xr:uid', '{00000000-0001-0000-0000-000000000000}');
+
+        $dimension = $this->sheetXml->createElement('dimension');
+        $worksheet->appendChild($dimension);
+        // @todo make dynamic
+        $dimension->setAttribute('ref', 'A1:C4');
+
+        $sheetViews = $this->sheetXml->createElement('sheetViews');
+        $worksheet->appendChild($sheetViews);
+
+        $sheetView = $this->sheetXml->createElement('sheetView');
+        $sheetViews->appendChild($sheetView);
+        $sheetView->setAttribute('tabSelected', '1');
+        $sheetView->setAttribute('workbookViewId', '0');
+
+        $sheetFormatPr = $this->sheetXml->createElement('sheetFormatPr');
+        $worksheet->appendChild($sheetFormatPr);
+        $sheetFormatPr->setAttribute('defaultRowHeight', '15');
+
+        $this->sheetData = $this->sheetXml->createElement('sheetData');
+        $worksheet->appendChild($this->sheetData);
+
+        $pageMargins = $this->sheetXml->createElement('pageMargins');
+        $worksheet->appendChild($pageMargins);
+        $pageMargins->setAttribute('left', '0.7');
+        $pageMargins->setAttribute('right', '0.7');
+        $pageMargins->setAttribute('top', '0.75');
+        $pageMargins->setAttribute('bottom', '0.75');
+        $pageMargins->setAttribute('header', '0.3');
+        $pageMargins->setAttribute('footer', '0.3');
+    }
+
+    public function getName(): string
+    {
+        return $this->sheetName;
+    }
+}

src/ZipFile.php → src/ExcelStream.php

@@ -5,7 +5,7 @@
 use UnexpectedValueException;
 use ZipStream\ZipStream;
 
-final class ZipFile implements FileWriterInterface, FileReaderInterface
+final class ExcelStream implements FileWriterInterface, FileReaderInterface
 {
     private ZipStream $zip;