Gui: forbid to delete OriginFeatures

src/Gui/CommandDoc.cpp

@@ -45,6 +45,7 @@
 #include <App/DocumentObjectGroup.h>
 #include <App/DocumentObject.h>
 #include <App/GeoFeature.h>
+#include <App/Origin.h>
 
 #include "Action.h"
 #include "Application.h"
@@ -1077,9 +1078,11 @@ void StdCmdDelete::activated(int iMsg)
                         for (std::vector<App::DocumentObject*>::iterator lt = links.begin(); lt != links.end(); ++lt) {
                             if (
                                   (!(*lt)->getTypeId().isDerivedFrom(App::DocumentObjectGroup::getClassTypeId())) &&
+                                  (!(*lt)->getTypeId().isDerivedFrom(App::Origin::getClassTypeId())) &&
                                   (!rSel.isSelected(*lt)) &&
                                   (!(*lt)->getTypeId().isDerivedFrom(Base::Type::fromName("Part::BodyBase")))
                                 ){
+                                // TODO Do something with this hack of Part::BodyBase (2015-09-09, Fat-Zer)
                                 autoDeletion = false;
                                 affectedLabels.insert(QString::fromUtf8((*lt)->Label.getValue()));
                             }

src/Gui/ViewProviderOriginFeature.cpp

@@ -38,6 +38,7 @@
 #endif
 
 #include <App/Document.h>
+#include <App/OriginFeature.h>
 
 #include "SoFCSelection.h"
 #include "Window.h"
@@ -176,3 +177,14 @@ void ViewProviderOriginFeature::setDisplayMode (const char* ModeName)
         setDisplayMaskMode("Base");
     ViewProviderGeometryObject::setDisplayMode(ModeName);
 }
+
+bool ViewProviderOriginFeature::onDelete(const std::vector<std::string> &) {
+    App::OriginFeature *feat = static_cast <App::OriginFeature *> ( getObject() );
+    // Forbid deletion if there is an origin thes feature belongs to
+
+    if ( feat->getOrigin () ) {
+        return false;
+    } else {
+        return true;
+    }
+}

src/Gui/ViewProviderOriginFeature.h

@@ -65,6 +65,7 @@ public:
 
 protected:
     virtual void onChanged ( const App::Property* prop );
+    virtual bool onDelete ( const std::vector<std::string> & );
 protected:
     SoSeparator    * pOriginFeatureRoot;
     SoScale        * pScale;