Gui: [skip ci] add sub-classes of the MDIView to the type system

src/Mod/Image/Gui/AppImageGui.cpp

@@ -18,6 +18,7 @@
 #include <Base/Console.h>
 #include <Gui/Application.h>
 #include <Gui/Language/Translator.h>
+#include "ImageView.h"
 #include "Workbench.h"
 #include "ViewProviderImagePlane.h"
 
@@ -50,6 +51,7 @@ PyMOD_INIT_FUNC(ImageGui)
     // instantiating the commands
     CreateImageCommands();
 
+    ImageGui::ImageView::init();
     ImageGui::ViewProviderImagePlane::init();
     ImageGui::Workbench::init();
 

src/Mod/Image/Gui/ImageView.cpp

@@ -36,6 +36,8 @@ using namespace ImageGui;
 
 /* TRANSLATOR ImageGui::ImageView */
 
+TYPESYSTEM_SOURCE_ABSTRACT(ImageGui::ImageView, Gui::MDIView)
+
 ImageView::ImageView(QWidget* parent)
   : MDIView(0, parent), _ignoreCloseEvent(false)
 {

src/Mod/Image/Gui/ImageView.h

@@ -40,6 +40,8 @@ class ImageGuiExport ImageView : public Gui::MDIView
 {
     Q_OBJECT
 
+    TYPESYSTEM_HEADER();
+
 public:
     ImageView(QWidget* parent);
     virtual ~ImageView();