Fix bad highlight position in Detail from ProjGroup

src/Mod/TechDraw/Gui/QGIViewPart.cpp

@@ -737,18 +737,15 @@ void QGIViewPart::drawHighlight(TechDraw::DrawViewDetail* viewDetail, bool b)
         return;
     }
 
-    TechDraw::DrawProjGroupItem* dpgi = nullptr;
-    if (viewPart->isDerivedFrom(TechDraw::DrawProjGroupItem::getClassTypeId())) {
-        dpgi = static_cast<TechDraw::DrawProjGroupItem*>(viewPart);
-    }
-
     if (b) {
         double fontSize = getPrefFontSize();
         QGIHighlight* highlight = new QGIHighlight();
         addToGroup(highlight);
         highlight->setPos(0.0,0.0);   //sb setPos(center.x,center.y)?
         highlight->setReference(const_cast<char*>(viewDetail->Reference.getValue()));
+
         Base::Vector3d center = viewDetail->AnchorPoint.getValue() * viewPart->getScale();
+
         double radius = viewDetail->Radius.getValue() * viewPart->getScale();
         highlight->setBounds(center.x - radius, center.y + radius,center.x + radius, center.y - radius);
         highlight->setWidth(Rez::guiX(vp->IsoWidth.getValue()));
@@ -757,11 +754,9 @@ void QGIViewPart::drawHighlight(TechDraw::DrawViewDetail* viewDetail, bool b)
 
         QPointF rotCenter = highlight->mapFromParent(transformOriginPoint());
         highlight->setTransformOriginPoint(rotCenter);
-        double rotation = viewPart->Rotation.getValue();
-        if (dpgi != nullptr) {
-            double rotDpgi = dpgi->getRotateAngle() * 180.0/M_PI;
-            rotation += rotDpgi;
-        }
+
+        double rotation = viewPart->Rotation.getValue() + 
+                          vp->HighlightAdjust.getValue();
         highlight->setRotation(rotation);
         highlight->draw();
     }

src/Mod/TechDraw/Gui/ViewProviderViewPart.cpp

@@ -58,6 +58,7 @@ ViewProviderViewPart::ViewProviderViewPart()
 
     static const char *group = "Lines";
     static const char *dgroup = "Decoration";
+    static const char *hgroup = "Highlight";
 
     //default line weights
     Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter().GetGroup("BaseApp")->
@@ -86,6 +87,9 @@ ViewProviderViewPart::ViewProviderViewPart()
 
     //properties that affect Section Line
     ADD_PROPERTY_TYPE(ShowSectionLine ,(true)    ,dgroup,App::Prop_None,"Show/hide section line if applicable");
+    
+    //properties that affect Detail Highlights
+    ADD_PROPERTY_TYPE(HighlightAdjust,(0.0),hgroup,App::Prop_None,"Adjusts the rotation of the Detail highlight");
 }
 
 ViewProviderViewPart::~ViewProviderViewPart()
@@ -104,6 +108,7 @@ void ViewProviderViewPart::onChanged(const App::Property* prop)
         prop == &(HiddenWidth) ||
         prop == &(IsoWidth) ||
         prop == &(ExtraWidth) ||
+        prop == &(HighlightAdjust) ||
         prop == &(ArcCenterMarks) ||
         prop == &(CenterScale) ||
         prop == &(ShowSectionLine)  ||

src/Mod/TechDraw/Gui/ViewProviderViewPart.h

@@ -52,6 +52,7 @@ public:
     App::PropertyBool   HorizCenterLine;
     App::PropertyBool   VertCenterLine;
     App::PropertyBool   ShowSectionLine;
+    App::PropertyFloat  HighlightAdjust;
 
     virtual void attach(App::DocumentObject *);
     virtual void setDisplayMode(const char* ModeName);