1 files changed, 64 insertions, 0 deletions
diff --git a/vendor/iio/libmergepdf/src/Driver/Fpdi2Driver.php b/vendor/iio/libmergepdf/src/Driver/Fpdi2Driver.php
new file mode 100644
index 0000000..e56d8b1
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Driver/Fpdi2Driver.php
@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf\Driver;
+
+use iio\libmergepdf\Exception;
+use iio\libmergepdf\Source\SourceInterface;
+use setasign\Fpdi\Fpdi as FpdiFpdf;
+use setasign\Fpdi\Tcpdf\Fpdi as FpdiTcpdf;
+use setasign\Fpdi\PdfParser\StreamReader;
+
+final class Fpdi2Driver implements DriverInterface
+{
+    /**
+     * @var FpdiFpdf|FpdiTcpdf
+     */
+    private $fpdi;
+
+    /**
+     * @param FpdiFpdf|FpdiTcpdf $fpdi
+     */
+    public function __construct($fpdi = null)
+    {
+        // Tcpdf generates warnings due to argument ordering with php 8
+        // suppressing errors is a dirty hack until tcpdf is patched
+        $this->fpdi = $fpdi ?: @new FpdiTcpdf;
+
+        if (!($this->fpdi instanceof FpdiFpdf) && !($this->fpdi instanceof FpdiTcpdf)) {
+            throw new \InvalidArgumentException('Constructor argument must be an FPDI instance.');
+        }
+    }
+
+    public function merge(SourceInterface ...$sources): string
+    {
+        $sourceName = '';
+
+        try {
+            $fpdi = clone $this->fpdi;
+
+            foreach ($sources as $source) {
+                $sourceName = $source->getName();
+                $pageCount = $fpdi->setSourceFile(StreamReader::createByString($source->getContents()));
+                $pageNumbers = $source->getPages()->getPageNumbers() ?: range(1, $pageCount);
+
+                foreach ($pageNumbers as $pageNr) {
+                    $template = $fpdi->importPage($pageNr);
+                    $size = $fpdi->getTemplateSize($template);
+                    $fpdi->SetPrintHeader(false);
+                    $fpdi->SetPrintFooter(false);
+                    $fpdi->AddPage(
+                        $size['width'] > $size['height'] ? 'L' : 'P',
+                        [$size['width'], $size['height']]
+                    );
+                    $fpdi->useTemplate($template);
+                }
+            }
+
+            return $fpdi->Output('', 'S');
+        } catch (\Exception $e) {
+            throw new Exception("'{$e->getMessage()}' in '$sourceName'", 0, $e);
+        }
+    }
+}