From 20a9b16623431942aed1610e843ae6f2e665366b Mon Sep 17 00:00:00 2001
From: Andreas Blaesius <andi@unlegacy-android.org>
Date: Sun, 8 Sep 2019 10:30:51 +0200
Subject: [PATCH] Allow printing frame on the picture

- "frame.png" needes to be added in root of photobooth
- only works if $config['print_qrcode'] = false;

https://github.com/andi34/photobooth/issues/22
https://github.com/andreknieriem/photobooth/issues/67
---
 admin/index.php |  5 +++++
 config.inc.php  |  1 +
 lang/de.js      |  3 ++-
 lang/en.js      |  3 ++-
 lang/fr.js      |  3 ++-
 print.php       | 22 ++++++++++++++++++++++
 6 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/admin/index.php b/admin/index.php
index ea9d5d36e..cf37fd96d 100644
--- a/admin/index.php
+++ b/admin/index.php
@@ -57,6 +57,11 @@
 				'name' => 'print_qrcode',
 				'value' => $config['print_qrcode']
 			],
+			'print_frame' => [
+				'type' => 'checkbox',
+				'name' => 'print_frame',
+				'value' => $config['print_frame']
+			],
 			'use_mail' => [
 				'type' => 'checkbox',
 				'name' => 'use_mail',
diff --git a/config.inc.php b/config.inc.php
index 106e2e912..9ba1919c7 100644
--- a/config.inc.php
+++ b/config.inc.php
@@ -11,6 +11,7 @@
 $config['use_print'] = false;
 $config['use_qr'] = true;
 $config['print_qrcode'] = true;
+$config['print_frame'] == false; // only works if $config['print_qrcode'] = false;
 $config['use_mail'] = false; // mail data needs to be configured
 $config['use_mobile_view'] = false;
 $config['use_gpio_button'] = false; // Use alt+p to take a new picture, can be triggered via GPIO24
diff --git a/lang/de.js b/lang/de.js
index 72ef44944..b5b62c979 100644
--- a/lang/de.js
+++ b/lang/de.js
@@ -86,5 +86,6 @@ L10N = {
 	"symbol": "Symbol auswählen",
 	"selectFilter": "Bildfilter",
 	"use_filter": "Bildfilter erlauben",
-	"use_collage": "Foto-Collage erlauben"
+	"use_collage": "Foto-Collage erlauben",
+	"print_frame": "Rahmen auf Bild drucken"
 }
diff --git a/lang/en.js b/lang/en.js
index 6fdc9e5f6..c38e48b22 100644
--- a/lang/en.js
+++ b/lang/en.js
@@ -86,5 +86,6 @@ L10N = {
 	"symbol": "Choose a symbol",
 	"selectFilter": "Image filter",
 	"use_filter": "Allow image filter",
-	"use_collage": "Allow collage photo"
+	"use_collage": "Allow collage photo",
+	"print_frame": "Print frame on picture"
 }
diff --git a/lang/fr.js b/lang/fr.js
index 0136fbeee..de3c33b6d 100644
--- a/lang/fr.js
+++ b/lang/fr.js
@@ -86,5 +86,6 @@ L10N = {
 	"symbol": "Sélectionnez le symbole",
 	"selectFilter": "Filtre d'image",
 	"use_filter": "Autoriser le filtre d'image",
-	"use_collage": "Autoriser la fonction du montage photo"
+	"use_collage": "Autoriser la fonction du montage photo",
+	"print_frame": "Imprimer le cadre sur la photo"
 }
diff --git a/print.php b/print.php
index fef37653d..7a0f898eb 100644
--- a/print.php
+++ b/print.php
@@ -54,6 +54,13 @@
             imagedestroy($source);
         } else {
             $print = imagecreatefromjpeg($filename_source);
+            if($config['print_frame'] == true) {
+                $rahmen = @imagecreatefrompng('frame.png');
+                $rahmen = ResizePngImage($rahmen, imagesx($print), imagesy($print));
+                $x = (imagesx($print)/2) - (imagesx($rahmen)/2);
+                $y = (imagesy($print)/2) - (imagesy($rahmen)/2);
+                imagecopy($print, $rahmen, $x, $y, 0, 0, imagesx($rahmen), imagesy($rahmen));
+            }
             imagejpeg($print, $filename_print);
         }
         imagedestroy($print);
@@ -69,3 +76,18 @@
     );
     echo json_encode(array('status' => 'ok', 'msg' => $printimage || ''));
 }
+
+function ResizePngImage($image, $max_width, $max_height)
+{
+	$old_width  = imagesx($image);
+	$old_height = imagesy($image);
+	$scale      = min($max_width/$old_width, $max_height/$old_height);
+	$new_width  = ceil($scale*$old_width);
+	$new_height = ceil($scale*$old_height);
+	$new = imagecreatetruecolor($new_width, $new_height);
+	imagealphablending( $new, false );
+	imagesavealpha( $new, true );
+	imagecopyresized($new, $image, 0, 0, 0, 0, $new_width, $new_height, $old_width, $old_height);
+
+	return $new;
+}