From 3946c846abb34f9c0e58dc16708079f7bb399d23 Mon Sep 17 00:00:00 2001
From: Damian Kowalski <s464894@labs.wmi.amu.edu.pl>
Date: Sat, 6 Apr 2024 12:45:07 +0200
Subject: [PATCH] added greyscale

---
 .../transformations/conversion_grayscale.cpp  | 20 +++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/core/transformations/conversion_grayscale.cpp b/src/core/transformations/conversion_grayscale.cpp
index 7cc66cb..28e5f50 100644
--- a/src/core/transformations/conversion_grayscale.cpp
+++ b/src/core/transformations/conversion_grayscale.cpp
@@ -21,11 +21,27 @@ PNM* ConversionGrayscale::transform()
 
     if (image->format() == QImage::Format_Mono)
     {
-
+        for (int y = 0; y < height; ++y)
+        {
+            for (int x = 0; x < width; ++x)
+            {
+                QRgb pixel = image->pixel(x, y);
+                int gray = qGray(pixel);
+                newImage->setPixel(x, y, qRgb(gray, gray, gray));
+            }
+        }
     }
     else // if (image->format() == QImage::Format_RGB32)
     {
-
+        for (int y = 0; y < height; ++y)
+        {
+            for (int x = 0; x < width; ++x)
+            {
+                QRgb pixel = image->pixel(x, y);
+                int gray = qGray(pixel);
+                newImage->setPixel(x, y, qRgb(gray, gray, gray));
+            }
+        }
     }
 
     return newImage;