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<?php |
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declare(strict_types=1); |
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namespace PhpEpub\Converters; |
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use PhpEpub\Exception; |
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use TCPDF; |
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class TCPDFAdapter implements ConverterInterface |
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{ |
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/** |
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* @var array<string, mixed> |
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*/ |
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private array $styles; |
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/** |
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* TCPDFAdapter constructor. |
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* |
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* @param array<string, mixed> $styles Optional styling parameters. |
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*/ |
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public function __construct(array $styles = []) |
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{ |
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// Default styling parameters |
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$defaultStyles = [ |
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'font' => 'helvetica', |
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'font_size' => 12, |
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'margin_left' => 15, |
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'margin_top' => 27, |
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'margin_right' => 15, |
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'margin_bottom' => 25, |
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'header' => true, |
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'footer' => true, |
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]; |
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// Merge default styles with user-provided styles |
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$this->styles = array_merge($defaultStyles, $styles); |
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} |
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/** |
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* Converts the EPUB content to a PDF using TCPDF. |
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* |
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* @param string $epubDirectory The directory containing the extracted EPUB contents. |
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* @param string $outputPath The path where the converted PDF should be saved. |
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* |
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* @throws Exception If the conversion fails. |
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*/ |
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public function convert(string $epubDirectory, string $outputPath): void |
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{ |
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// Initialize TCPDF |
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$pdf = new TCPDF(); |
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// Set document information |
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$pdf->SetCreator(PDF_CREATOR); |
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$pdf->SetAuthor('Author Name'); // This should be extracted from EPUB metadata |
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$pdf->SetTitle('EPUB to PDF Conversion'); |
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$pdf->SetSubject('EPUB Conversion'); |
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$pdf->SetKeywords('EPUB, PDF, conversion'); |
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// Set default header and footer |
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if ($this->styles['header']) { |
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$pdf->setHeaderData('', 0, 'EPUB to PDF', 'Generated by TCPDF'); |
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} else { |
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$pdf->setPrintHeader(false); |
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} |
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if ($this->styles['footer']) { |
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$pdf->setFooterData(); |
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} else { |
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$pdf->setPrintFooter(false); |
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} |
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$marginLeft = 15; |
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if (isset($this->styles['margin_left']) && is_int($this->styles['margin_left'])) { |
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$marginLeft = $this->styles['margin_left']; |
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} |
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$marginTop = 27; |
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if (isset($this->styles['margin_top']) && is_int($this->styles['margin_top'])) { |
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$marginTop = $this->styles['margin_top']; |
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} |
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$marginRight = 15; |
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if (isset($this->styles['margin_right']) && is_int($this->styles['margin_right'])) { |
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$marginRight = $this->styles['margin_right']; |
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} |
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$marginBottom = 27; |
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if (isset($this->styles['margin_bottom']) && is_int($this->styles['margin_bottom'])) { |
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$marginBottom = $this->styles['margin_bottom']; |
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} |
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// Set margins |
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$pdf->SetMargins($marginLeft, $marginTop, $marginRight); |
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$pdf->SetHeaderMargin(PDF_MARGIN_HEADER); |
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$pdf->SetFooterMargin(PDF_MARGIN_FOOTER); |
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$pdf->SetAutoPageBreak(true, $marginBottom); |
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$font = 'helvetica'; |
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if (isset($this->styles['font']) && is_string($this->styles['font'])) { |
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$font = $this->styles['font']; |
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} |
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$fontSize = 27; |
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if (isset($this->styles['font_size']) && is_int($this->styles['font_size'])) { |
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$fontSize = $this->styles['font_size']; |
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} |
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// Set font |
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$pdf->SetFont($font, '', $fontSize); |
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// Add a page |
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$pdf->AddPage(); |
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// Load EPUB content (this is a simplified example) |
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$content = $this->loadEpubContent($epubDirectory); |
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// Write content to PDF |
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$pdf->writeHTML($content, true, false, true, false, ''); |
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// Output PDF to file |
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$pdf->Output($outputPath, 'F'); |
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} |
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/** |
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* Loads the EPUB content for conversion. |
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* |
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* @throws Exception If the content cannot be loaded. |
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*/ |
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private function loadEpubContent(string $epubDirectory): string |
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{ |
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// Simplified example: Load content from a specific file |
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$contentFile = $epubDirectory . '/content.xhtml'; // Adjust this path as needed |
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if (! file_exists($contentFile)) { |
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throw new Exception("Content file not found: {$contentFile}"); |
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} |
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$content = file_get_contents($contentFile); |
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if ($content === false) { |
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throw new Exception("Failed to read content from: {$contentFile}"); |
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} |
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return $content; |
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} |
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} |
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indy2kro /
php-epub
