Fixed memory leak and enabled sanatizers

.gitignore

@@ -55,4 +55,7 @@ data/flatpak/.flatpak-builder
 # NVIM
 *~
 
+# Jetbrains
+.idea/
+
 # End of https://www.gitignore.io/api/snapcraft

CMakeLists.txt

@@ -21,7 +21,7 @@ include(cmake/CompilerWarnings.cmake)
 
 # sanitizer options if supported by compiler
 include(cmake/Sanitizers.cmake)
-# enable_sanitizers(project_options)
+enable_sanitizers(project_options)
 
 # allow for static analysis options include(cmake/StaticAnalyzers.cmake)
 

src/tools/pixelate/pixelatetool.cpp

@@ -139,6 +139,8 @@ PixelateTool::process(QPainter& painter, const QPixmap& pixmap, bool recordUndo)
   scene.addPixmap(result);
 
   scene.render(&painter, selection, QRectF());
+
+  delete source;
 }
 
 void