From 54a7e1dae9c80ca9b71b24d1d19484e712e8d26a Mon Sep 17 00:00:00 2001
From: stephan <stephan@progiweb.ca>
Date: Sat, 11 Jul 2026 18:53:02 -0400
Subject: [PATCH] Add logo path function and enhance logo image creation for QR
 key chains

This commit introduces a new function to define the logo path for QR key chains and enhances the image creation process by adding functionality to load, resize, and center the logo within a specified size. If the logo file is missing, a fallback to a text drawing is implemented. These changes improve the visual presentation of QR codes with logos.
---
 images/ms1-kc-logo.png | Bin 0 -> 4395 bytes
 php/inc_fx_kc_qr.php   |  52 ++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 images/ms1-kc-logo.png

diff --git a/images/ms1-kc-logo.png b/images/ms1-kc-logo.png
new file mode 100644
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diff --git a/php/inc_fx_kc_qr.php b/php/inc_fx_kc_qr.php
index fc1c683..4c57dd3 100644
--- a/php/inc_fx_kc_qr.php
+++ b/php/inc_fx_kc_qr.php
@@ -3,10 +3,60 @@
 require_once __DIR__ . '/../libs/phpqrcode-master/qrlib.php';
 
 /**
- * Logo MS1 au centre du QR (carré noir, texte blanc).
+ * Chemin du logo MS1 pour le centre des QR key_chain.
+ */
+function fxKcQrLogoPath()
+{
+    return __DIR__ . '/../images/ms1-kc-logo.png';
+}
+
+/**
+ * Charge et redimensionne le logo PNG (carré de sortie $intSize).
+ * Repli : dessin texte si le fichier est absent.
  */
 function fxKcQrCreateLogoImage($intSize)
 {
+    $intSize = max(24, (int) $intSize);
+    $strLogoPath = fxKcQrLogoPath();
+
+    if (is_file($strLogoPath)) {
+        $imgSrc = @imagecreatefrompng($strLogoPath);
+        if ($imgSrc !== false) {
+            $intSrcW = imagesx($imgSrc);
+            $intSrcH = imagesy($imgSrc);
+            $img = imagecreatetruecolor($intSize, $intSize);
+            imagealphablending($img, false);
+            imagesavealpha($img, true);
+            $colTransparent = imagecolorallocatealpha($img, 0, 0, 0, 127);
+            imagefilledrectangle($img, 0, 0, $intSize, $intSize, $colTransparent);
+            imagealphablending($img, true);
+
+            // Conserve le ratio (158×180) dans le carré cible.
+            $fltScale = min($intSize / max(1, $intSrcW), $intSize / max(1, $intSrcH));
+            $intDstW = max(1, (int) round($intSrcW * $fltScale));
+            $intDstH = max(1, (int) round($intSrcH * $fltScale));
+            $intDstX = (int) floor(($intSize - $intDstW) / 2);
+            $intDstY = (int) floor(($intSize - $intDstH) / 2);
+
+            imagecopyresampled(
+                $img,
+                $imgSrc,
+                $intDstX,
+                $intDstY,
+                0,
+                0,
+                $intDstW,
+                $intDstH,
+                $intSrcW,
+                $intSrcH
+            );
+            imagedestroy($imgSrc);
+
+            return $img;
+        }
+    }
+
+    // Repli : dessin texte (si PNG manquant).
     $img = imagecreatetruecolor($intSize, $intSize);
     imagealphablending($img, true);
     imagesavealpha($img, true);