[TD]make scrubbing count a property of view

src/Mod/TechDraw/App/DrawViewPart.cpp

@@ -137,6 +137,8 @@ DrawViewPart::DrawViewPart(void)
                       "Show Hidden Iso u, v lines");
     ADD_PROPERTY_TYPE(IsoCount, (prefIsoCount()), sgroup, App::Prop_None,
                       "Number of iso parameters lines");
+    ADD_PROPERTY_TYPE(ScrubCount, (Preferences::scrubCount()), sgroup, App::Prop_None,
+                      "The number of times FreeCAD should try to clean the HLR result.");
 
     //initialize bbox to non-garbage
     bbox = Base::BoundBox3d(Base::Vector3d(0.0, 0.0, 0.0), 0.0);
@@ -361,6 +363,7 @@ TechDraw::GeometryObjectPtr DrawViewPart::buildGeometryObject(TopoDS_Shape& shap
     go->isPerspective(Perspective.getValue());
     go->setFocus(Focus.getValue());
     go->usePolygonHLR(CoarseView.getValue());
+    go->setScrubCount(ScrubCount.getValue());
 
     if (CoarseView.getValue()) {
         //the polygon approximation HLR process runs quickly, so doesn't need to be in a

src/Mod/TechDraw/App/DrawViewPart.h

@@ -109,6 +109,8 @@ public:
     App::PropertyBool IsoHidden;
     App::PropertyInteger IsoCount;
 
+    App::PropertyInteger ScrubCount;
+
     short mustExecute() const override;
     App::DocumentObjectExecReturn* execute() override;
     const char* getViewProviderName() const override { return "TechDrawGui::ViewProviderViewPart"; }

src/Mod/TechDraw/App/GeometryObject.cpp

@@ -71,7 +71,6 @@
 #include "DrawViewPart.h"
 #include "GeometryObject.h"
 #include "DrawProjectSplit.h"
-#include "Preferences.h"
 
 using namespace TechDraw;
 using namespace std;
@@ -85,7 +84,7 @@ struct EdgePoints {
 
 GeometryObject::GeometryObject(const string& parent, TechDraw::DrawView* parentObj)
     : m_parentName(parent), m_parent(parentObj), m_isoCount(0), m_isPersp(false), m_focus(100.0),
-      m_usePolygonHLR(false)
+      m_usePolygonHLR(false), m_scrubCount(0)
 
 {}
 
@@ -539,10 +538,9 @@ void GeometryObject::addGeomFromCompound(TopoDS_Shape edgeCompound, edgeClass ca
 
     // remove overlapping edges
     TopoDS_Shape cleanShape;
-    int passes = Preferences::scrubCount();
-    if (passes > 0) {
+    if (m_scrubCount > 0) {
         std::vector<TopoDS_Edge> edgeVector = DU::shapeToVector(edgeCompound);
-        for (int iPass = 0; iPass < passes; iPass++)  {
+        for (int iPass = 0; iPass < m_scrubCount; iPass++)  {
             edgeVector = DrawProjectSplit::removeOverlapEdges(edgeVector);
         }
         bool invertResult = false;

src/Mod/TechDraw/App/GeometryObject.h

@@ -132,6 +132,9 @@ public:
     bool usePolygonHLR() const { return m_usePolygonHLR; }
     void setFocus(double f) { m_focus = f; }
     double getFocus() { return m_focus; }
+    void setScrubCount(int count) { m_scrubCount = count; }
+
+
     void pruneVertexGeom(Base::Vector3d center, double radius);
 
     //dupl mirrorShape???
@@ -199,6 +202,7 @@ protected:
     bool m_isPersp;
     double m_focus;
     bool m_usePolygonHLR;
+    int m_scrubCount;
 };
 
 using GeometryObjectPtr = std::shared_ptr<GeometryObject>;

src/Mod/TechDraw/Gui/DlgPrefsTechDrawAdvanced.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>444</width>
-    <height>384</height>
+    <height>416</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -558,6 +558,11 @@ can be a performance penalty in complex models.</string>
         </item>
         <item row="7" column="0">
          <widget class="QLabel" name="label_3">
+          <property name="font">
+           <font>
+            <italic>true</italic>
+           </font>
+          </property>
           <property name="text">
            <string>Overlap Edges Scrub Passes</string>
           </property>