unifont import, TCPDF use import fonts (#18577)

* if unifont import, use that font for the pdf

if unifont import, use that font for the pdf

* Update Pdf.php

update function and comments

1 files changed, 7 insertions, 0 deletions

diff --git a/core/ReportRenderer/Pdf.php b/core/ReportRenderer/Pdf.php
index 3875f1e484..ec72979ddb 100644
--- a/core/ReportRenderer/Pdf.php
+++ b/core/ReportRenderer/Pdf.php
@@ -16,6 +16,7 @@ use Piwik\Plugins\API\API;
 use Piwik\Plugins\CoreAdminHome\CustomLogo;
 use Piwik\ReportRenderer;
 use Piwik\TCPDF;
+use TCPDF_FONTS;
 
 /**
  * @see libs/tcpdf
@@ -40,6 +41,8 @@ class Pdf extends ReportRenderer
     const MAX_GRAPH_REPORTS = 3;
     const MAX_2COL_TABLE_REPORTS = 2;
 
+    const IMPORT_FONT_PATH = 'plugins/ImageGraph/fonts/unifont.ttf';
+
     const PDF_CONTENT_TYPE = 'pdf';
 
     private $reportFontStyle = '';
@@ -136,6 +139,10 @@ class Pdf extends ReportRenderer
         }
         // WARNING: Did you read the warning above?
 
+        // When user follow the FAQ https://matomo.org/faq/how-to-install/faq_142/, imported unifont font, it will apply across the entire report
+        if (is_file(self::IMPORT_FONT_PATH)) {
+            $reportFont = TCPDF_FONTS::addTTFfont(self::IMPORT_FONT_PATH, 'TrueTypeUnicode');
+        }
         $this->reportFont = $reportFont;
     }