allow to use customized pdf library

src/PhpWord/Element/AbstractContainer.php

@@ -109,6 +109,7 @@ public function __call($function, $args)
  } else {
  // All other elements
  array_unshift($args, $element); // Prepend element name to the beginning of args array
+
  return call_user_func_array(array($this, 'addElement'), $args);
  }
  }

src/PhpWord/Writer/PDF/DomPDF.php

@@ -35,6 +35,16 @@ class DomPDF extends AbstractRenderer implements WriterInterface
  */
  protected $includeFile = null;
 
+ /**
+ * Gets the implementation of external PDF library that should be used.
+ *
+ * @return Dompdf implementation
+ */
+ protected function createExternalWriterInstance()
+ {
+ return new DompdfLib();
+ }
+
  /**
  * Save PhpWord to file.
  *
@@ -49,7 +59,7 @@ public function save($filename = null)
  $orientation = 'portrait';
 
  // Create PDF
- $pdf = new DompdfLib();
+ $pdf = $this->createExternalWriterInstance();
  $pdf->setPaper(strtolower($paperSize), $orientation);
  $pdf->loadHtml(str_replace(PHP_EOL, '', $this->getContent()));
  $pdf->render();

src/PhpWord/Writer/PDF/MPDF.php

@@ -44,6 +44,18 @@ public function __construct(PhpWord $phpWord)
  parent::__construct($phpWord);
  }
 
+ /**
+ * Gets the implementation of external PDF library that should be used.
+ *
+ * @return Mpdf implementation
+ */
+ protected function createExternalWriterInstance()
+ {
+ $mPdfClass = $this->getMPdfClassName();
+
+ return new $mPdfClass();
+ }
+
  /**
  * Save PhpWord to file.
  *
@@ -58,8 +70,7 @@ public function save($filename = null)
  $orientation = strtoupper('portrait');
 
  // Create PDF
- $mPdfClass = $this->getMPdfClassName();
- $pdf = new $mPdfClass();
+ $pdf = $this->createExternalWriterInstance();
  $pdf->_setPageSize($paperSize, $orientation);
  $pdf->addPage($orientation);
 

src/PhpWord/Writer/PDF/TCPDF.php

@@ -36,6 +36,20 @@ class TCPDF extends AbstractRenderer implements WriterInterface
  */
  protected $includeFile = 'tcpdf.php';
 
+ /**
+ * Gets the implementation of external PDF library that should be used.
+ *
+ * @param string $orientation Page orientation
+ * @param string $unit Unit measure
+ * @param string $paperSize Paper size
+ *
+ * @return \TCPDF implementation
+ */
+ protected function createExternalWriterInstance($orientation, $unit, $paperSize)
+ {
+ return new \TCPDF($orientation, $unit, $paperSize);
+ }
+
  /**
  * Save PhpWord to file.
  *
@@ -50,7 +64,7 @@ public function save($filename = null)
  $orientation = 'P';
 
  // Create PDF
- $pdf = new \TCPDF($orientation, 'pt', $paperSize);
+ $pdf = $this->createExternalWriterInstance($orientation, 'pt', $paperSize);
  $pdf->setFontSubsetting(false);
  $pdf->setPrintHeader(false);
  $pdf->setPrintFooter(false);