From ac695ad67b52f4104701bf7583a74903fdf0c4b2 Mon Sep 17 00:00:00 2001
From: logari81 <logari81@e8eeb9e2-ec13-0410-a4a9-efa5cf37419d>
Date: Sat, 10 Dec 2011 15:23:59 +0000
Subject: [PATCH] + infrastructure for placement synchronization of SketchBased
 features

git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5255 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
---
 src/Mod/PartDesign/App/FeatureSketchBased.cpp | 17 +++++++++++++++--
 src/Mod/PartDesign/App/FeatureSketchBased.h   |  5 +++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/Mod/PartDesign/App/FeatureSketchBased.cpp b/src/Mod/PartDesign/App/FeatureSketchBased.cpp
index 661aafd77..1ebd2db1c 100644
--- a/src/Mod/PartDesign/App/FeatureSketchBased.cpp
+++ b/src/Mod/PartDesign/App/FeatureSketchBased.cpp
@@ -49,6 +49,7 @@
 
 
 #include "FeatureSketchBased.h"
+#include <Mod/Part/App/Part2DObject.h>
 
 
 using namespace PartDesign;
@@ -65,7 +66,7 @@ struct Wire_Compare {
 
         BRepBndLib::Add(w2, box2);
         box2.SetGap(0.0);
-        
+
         return box1.SquareExtent() < box2.SquareExtent();
     }
 };
@@ -77,6 +78,18 @@ SketchBased::SketchBased()
     ADD_PROPERTY(Sketch,(0));
 }
 
+void SketchBased::positionBySketch(void)
+{
+    Part::Part2DObject *sketch = static_cast<Part::Part2DObject*>(Sketch.getValue());
+    if (sketch && sketch->getTypeId().isDerivedFrom(Part::Part2DObject::getClassTypeId())) {
+        Part::Feature *part = static_cast<Part::Feature*>(sketch->Support.getValue());
+        if (part && part->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId()))
+            this->Placement.setValue(part->Placement.getValue());
+        else
+            this->Placement.setValue(sketch->Placement.getValue());
+    }
+}
+
 bool SketchBased::isInside(const TopoDS_Wire& wire1, const TopoDS_Wire& wire2) const
 {
     Bnd_Box box1;
@@ -180,7 +193,7 @@ TopoDS_Shape SketchBased::makeFace(std::list<TopoDS_Wire>& wires) const
             inner_axis = adapt.Plane().Axis().Direction();
         }
         // It seems that orientation is always 'Forward' and we only have to reverse
-        // if the underlying plane have opposite normals. 
+        // if the underlying plane have opposite normals.
         if (axis.Dot(inner_axis) < 0)
             it->Reverse();
         mkFace.Add(*it);
diff --git a/src/Mod/PartDesign/App/FeatureSketchBased.h b/src/Mod/PartDesign/App/FeatureSketchBased.h
index c65033dda..947c0356e 100644
--- a/src/Mod/PartDesign/App/FeatureSketchBased.h
+++ b/src/Mod/PartDesign/App/FeatureSketchBased.h
@@ -42,6 +42,11 @@ public:
 
     App::PropertyLink   Sketch;
 
+    /** calculates and updates the Placement property based on the Sketch
+     *  or its support if it has one
+      */
+    void positionBySketch(void);
+
 protected:
     TopoDS_Face validateFace(const TopoDS_Face&) const;
     TopoDS_Shape makeFace(const std::vector<TopoDS_Wire>&) const;