Gui: Use of Multisample class

src/Gui/View3DInventorViewer.cpp

@@ -95,6 +95,7 @@
 #include "Document.h"
 #include "GLPainter.h"
 #include "MainWindow.h"
+#include "Multisample.h"
 #include "NaviCube.h"
 #include "NavigationStyle.h"
 #include "Selection.h"
@@ -1965,25 +1966,8 @@ void View3DInventorViewer::clearGraphicsItems()
 
 int View3DInventorViewer::getNumSamples()
 {
-    long samples = App::GetApplication().GetParameterGroupByPath
-        ("User parameter:BaseApp/Preferences/View")->GetInt("AntiAliasing", 0);
-
-    // NOLINTBEGIN
-    switch (samples) {
-    case View3DInventorViewer::MSAA2x:
-        return 2;
-    case View3DInventorViewer::MSAA4x:
-        return 4;
-    case View3DInventorViewer::MSAA6x:
-        return 6;
-    case View3DInventorViewer::MSAA8x:
-        return 8;
-    case View3DInventorViewer::Smoothing:
-        return 1;
-    default:
-        return 0;
-    }
-    // NOLINTEND
+    Gui::AntiAliasing msaa = Multisample::readMSAAFromSettings();
+    return Multisample::toSamples(msaa);
 }
 
 GLenum View3DInventorViewer::getInternalTextureFormat()