From c8de86a7ec9e368e5e7cb48e03d51e20e979a6c0 Mon Sep 17 00:00:00 2001
From: SailorMax <sailormax@live.com>
Date: Wed, 16 Dec 2020 17:24:42 +0300
Subject: [PATCH] allow to use customized pdf library

---
 src/PhpWord/Element/AbstractContainer.php |  1 +
 src/PhpWord/Writer/PDF/DomPDF.php         | 12 +++++++++++-
 src/PhpWord/Writer/PDF/MPDF.php           | 15 +++++++++++++--
 src/PhpWord/Writer/PDF/TCPDF.php          | 16 +++++++++++++++-
 4 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/src/PhpWord/Element/AbstractContainer.php b/src/PhpWord/Element/AbstractContainer.php
index 0c773dbe69..6a1ed93013 100644
--- a/src/PhpWord/Element/AbstractContainer.php
+++ b/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);
             }
         }
diff --git a/src/PhpWord/Writer/PDF/DomPDF.php b/src/PhpWord/Writer/PDF/DomPDF.php
index 5fa8f75dbb..53eea81588 100644
--- a/src/PhpWord/Writer/PDF/DomPDF.php
+++ b/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();
diff --git a/src/PhpWord/Writer/PDF/MPDF.php b/src/PhpWord/Writer/PDF/MPDF.php
index e63f5dfd68..464f156ce5 100644
--- a/src/PhpWord/Writer/PDF/MPDF.php
+++ b/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);
 
diff --git a/src/PhpWord/Writer/PDF/TCPDF.php b/src/PhpWord/Writer/PDF/TCPDF.php
index badab0460e..3abbbf069d 100644
--- a/src/PhpWord/Writer/PDF/TCPDF.php
+++ b/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);