Attacher: Py: introduce Py interface of AttachableObject

Small - just the introduction.
Support for Py features based on AttachableObject.
Redirect Part2DObjectPython's father to be AttachableObjectPython.

src/Mod/Part/App/AppPart.cpp

@@ -229,6 +229,7 @@ PyMODINIT_FUNC initPart()
     Part::Feature               ::init();
     Part::FeatureExt            ::init();
     Part::AttachableObject      ::init();
+    Part::AttachableObjectPython::init();
     Part::BodyBase              ::init();
     Part::FeaturePython         ::init();
     Part::FeatureGeometrySet    ::init();

src/Mod/Part/App/AttachableObject.cpp

@@ -30,6 +30,8 @@
 #include <Base/Console.h>
 #include <App/Application.h>
 
+#include <App/FeaturePythonPyImp.h>
+#include "AttachableObjectPy.h"
 
 
 using namespace Part;
@@ -151,4 +153,22 @@ void AttachableObject::updateAttacherVals()
                      this->superPlacement.getValue());
 }
 
+namespace App {
+/// @cond DOXERR
+  PROPERTY_SOURCE_TEMPLATE(Part::AttachableObjectPython, Part::AttachableObject)
+  template<> const char* Part::AttachableObjectPython::getViewProviderName(void) const {
+    return "PartGui::ViewProviderPython";
+  }
+  template<> PyObject* Part::AttachableObjectPython::getPyObject(void) {
+        if (PythonObject.is(Py::_None())) {
+            // ref counter is set to 1
+            PythonObject = Py::Object(new FeaturePythonPyT<Part::AttachableObjectPy>(this),true);
+        }
+        return Py::new_reference_to(PythonObject);
+  }
+/// @endcond
+
+// explicit template instantiation
+  template class PartExport FeaturePythonT<Part::AttachableObject>;
+}
 

src/Mod/Part/App/AttachableObject.h

@@ -104,6 +104,8 @@ class PartExport AttachableObject : public Part::Feature
 };
 
 
+typedef App::FeaturePythonT<AttachableObject> AttachableObjectPython;
+
 } // namespace Part
 
 #endif // PARTATTACHABLEOBJECT_H

src/Mod/Part/App/AttachableObjectPy.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
+  <PythonExport 
+    Father="PartFeaturePy"  
+    Name="AttachableObjectPy" 
+    Twin="AttachableObject" 
+    TwinPointer="AttachableObject" 
+    Include="Mod/Part/App/AttachableObject.h" 
+    Namespace="Part" 
+    FatherInclude="Mod/Part/App/PartFeaturePy.h" 
+    FatherNamespace="Part">
+    <Documentation>
+      <Author Licence="LGPL" Name="DeepSOIC" EMail="vv.titov@gmail.com" />
+      <UserDocu>This object represents an attachable object with OCC shape.</UserDocu>
+    </Documentation>
+    <Methode Name="positionBySupport">
+      <Documentation>
+        <UserDocu>positionBySupport(): Reposition object based on Support, MapMode and MapPathParameter properties.
+Returns True if attachment calculation was successful, false if object is not attached and Placement wasn't updated,
+and raises an exception if attachment calculation fails.</UserDocu>
+      </Documentation>
+    </Methode>
+  </PythonExport>
+</GenerateModel>

src/Mod/Part/App/AttachableObjectPyImp.cpp

@@ -0,0 +1,48 @@
+
+#include "PreCompiled.h"
+
+#include "Mod/Part/App/AttachableObject.h"
+#include "OCCError.h"
+
+// inclusion of the generated files (generated out of AttachableObjectPy.xml)
+#include "AttachableObjectPy.h"
+#include "AttachableObjectPy.cpp"
+
+using namespace Part;
+
+// returns a string which represents the object e.g. when printed in python
+std::string AttachableObjectPy::representation(void) const
+{
+    return std::string("<Part::AttachableObject>");
+}
+
+PyObject* AttachableObjectPy::positionBySupport(PyObject *args)
+{
+    if (!PyArg_ParseTuple(args, ""))
+        return 0;
+    bool bAttached = false;
+    try{
+        bAttached = this->getAttachableObjectPtr()->positionBySupport();
+    } catch (Standard_Failure) {
+        Handle_Standard_Failure e = Standard_Failure::Caught();
+        PyErr_SetString(PartExceptionOCCError, e->GetMessageString());
+        return NULL;
+    } catch (Base::Exception &e) {
+        PyErr_SetString(Base::BaseExceptionFreeCADError, e.what());
+        return NULL;
+    }
+    return Py::new_reference_to(Py::Boolean(bAttached));
+}
+
+
+PyObject *AttachableObjectPy::getCustomAttributes(const char* /*attr*/) const
+{
+    return 0;
+}
+
+int AttachableObjectPy::setCustomAttributes(const char* /*attr*/, PyObject* /*obj*/)
+{
+    return 0;
+}
+
+

src/Mod/Part/App/CMakeLists.txt

@@ -69,6 +69,7 @@ generate_from_xml(RectangularTrimmedSurfacePy)
 generate_from_xml(SurfaceOfExtrusionPy)
 generate_from_xml(SurfaceOfRevolutionPy)
 generate_from_xml(PartFeaturePy)
+generate_from_xml(AttachableObjectPy)
 generate_from_xml(Part2DObjectPy)
 generate_from_xml(TopoShapePy)
 generate_from_xml(TopoShapeCompoundPy)
@@ -216,6 +217,8 @@ SET(Python_SRCS
     SurfaceOfRevolutionPyImp.cpp
     PartFeaturePy.xml
     PartFeaturePyImp.cpp
+    AttachableObjectPy.xml
+    AttachableObjectPyImp.cpp
     Part2DObjectPy.xml
     Part2DObjectPyImp.cpp
     TopoShapePy.xml

src/Mod/Part/App/Part2DObjectPy.xml

@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
   <PythonExport 
-    Father="PartFeaturePy"  
+    Father="AttachableObjectPy"
     Name="Part2DObjectPy" 
     Twin="Part2DObject" 
     TwinPointer="Part2DObject" 
     Include="Mod/Part/App/Part2DObject.h" 
     Namespace="Part" 
-    FatherInclude="Mod/Part/App/PartFeaturePy.h" 
+    FatherInclude="Mod/Part/App/AttachableObjectPy.h"
     FatherNamespace="Part">
     <Documentation>
       <Author Licence="LGPL" Name="Juergen Riegel" EMail="FreeCAD@juergen-riegel.net" />