Integration of OCCT 6.5.0 from SVN

src/BRepMesh/BRepMesh_DiscretFactory.cxx

@@ -0,0 +1,223 @@
+// File:	BRepMesh_DiscretFactory.cxx
+// Created:	Thu Apr 10 13:32:00 2008
+// Author:	Peter KURNEV
+//		<pkv@irinox>
+
+
+#include <BRepMesh_DiscretFactory.ixx>
+
+#include <OSD_SharedLibrary.hxx>
+#include <OSD_Function.hxx>
+#include <BRepMesh_IncrementalMesh.hxx>
+
+static 
+  void MakeLibName(const TCollection_AsciiString& , 
+		   TCollection_AsciiString& );
+static
+  Standard_Integer CreateDiscret(const TopoDS_Shape& theShape,
+				 const Standard_Real    ,
+				 const Standard_Real    ,
+				 OSD_Function& ,
+				 BRepMesh_PDiscretRoot& );
+
+//=======================================================================
+//function : BRepMesh_DiscretFactory
+//purpose  : 
+//=======================================================================
+BRepMesh_DiscretFactory::BRepMesh_DiscretFactory()
+{
+  myFixedNames[0]="FastDiscret";
+
+  //
+  myNames.Add(myFixedNames[0]);
+  myDefaultName=myFixedNames[0];
+  myFunctionName="DISCRETALGO";
+  myPDiscret=NULL;
+}
+//=======================================================================
+//function : ~
+//purpose  : 
+//=======================================================================
+BRepMesh_DiscretFactory::~BRepMesh_DiscretFactory()
+{
+  Clear();
+}
+//=======================================================================
+//function : ~
+//purpose  : 
+//=======================================================================
+void BRepMesh_DiscretFactory::Clear()
+{
+  if (myPDiscret) {
+    delete myPDiscret;
+    myPDiscret=NULL;
+  }
+}
+//=======================================================================
+//function : Get
+//purpose  : 
+//=======================================================================
+BRepMesh_DiscretFactory& BRepMesh_DiscretFactory::Get() 
+{
+  static BRepMesh_DiscretFactory* sFactory;
+  static Standard_Boolean isInit=Standard_False;
+  if(!isInit) {
+    isInit = Standard_True;
+    sFactory = new BRepMesh_DiscretFactory;
+  }
+  return *sFactory;
+}
+//=======================================================================
+//function : ErrorStatus
+//purpose  : 
+//=======================================================================
+BRepMesh_FactoryError BRepMesh_DiscretFactory::ErrorStatus()const
+{
+  return myErrorStatus;
+}
+//=======================================================================
+//function : Names
+//purpose  : 
+//=======================================================================
+const TColStd_MapOfAsciiString& BRepMesh_DiscretFactory::Names()const
+{
+  return myNames;
+}
+//=======================================================================
+//function : SetDefaultName
+//purpose  : 
+//=======================================================================
+void BRepMesh_DiscretFactory::SetDefaultName(const TCollection_AsciiString& theName)
+{
+  myDefaultName=theName;
+}
+//=======================================================================
+//function : DefaultName
+//purpose  : 
+//=======================================================================
+const TCollection_AsciiString& BRepMesh_DiscretFactory::DefaultName()const
+{
+  return myDefaultName;
+}
+//=======================================================================
+//function : SetFunctionName
+//purpose  : 
+//=======================================================================
+void BRepMesh_DiscretFactory::SetFunctionName(const TCollection_AsciiString& theName)
+{
+  myFunctionName=theName;
+}
+//=======================================================================
+//function : FunctionName
+//purpose  : 
+//=======================================================================
+const TCollection_AsciiString& BRepMesh_DiscretFactory::FunctionName()const
+{
+  return myFunctionName;
+}
+//=======================================================================
+//function : Discret
+//purpose  : 
+//=======================================================================
+BRepMesh_PDiscretRoot& 
+  BRepMesh_DiscretFactory::Discret(const TopoDS_Shape& theShape,
+				   const Standard_Real theDeflection,
+				   const Standard_Real theAngle)
+{
+  myErrorStatus=BRepMesh_FE_NOERROR;
+  Clear();
+  // DEB f
+  //myDefaultName="TKXMesh";
+  // DEB t
+  if(myDefaultName==myFixedNames[0]) {
+    myPDiscret=new BRepMesh_IncrementalMesh;
+    myPDiscret->SetDeflection(theDeflection);
+    myPDiscret->SetAngle(theAngle);
+    myPDiscret->SetShape(theShape);
+  }
+  else {
+    Standard_Integer iErr;
+    TCollection_AsciiString aLibName;
+    OSD_Function aF;
+    //
+    myPDiscret=NULL;
+    //
+    MakeLibName(myDefaultName, aLibName);
+    //
+    OSD_SharedLibrary aSL(aLibName.ToCString());
+    if (!aSL.DlOpen(OSD_RTLD_LAZY)) {
+      myErrorStatus=BRepMesh_FE_LIBRARYNOTFOUND; // library is not found  
+      return myPDiscret;
+    }
+    //
+    aF = aSL.DlSymb(myFunctionName.ToCString());
+    if(aF==NULL ) {
+      myErrorStatus=BRepMesh_FE_FUNCTIONNOTFOUND; // function is not found  
+      return myPDiscret;
+    }
+    //
+    iErr=CreateDiscret(theShape,
+		       theDeflection,
+		       theAngle,
+		       aF,
+		       myPDiscret);
+    if (iErr) {
+      myErrorStatus=BRepMesh_FE_CANNOTCREATEALGO; // can not create the algo specified  
+    }
+    else {
+      myNames.Add(myDefaultName);
+    }
+  }
+  //
+  return myPDiscret;
+}
+//=======================================================================
+//function : CreateDiscret
+//purpose  : 
+//=======================================================================
+Standard_Integer CreateDiscret(const TopoDS_Shape& theShape,
+			       const Standard_Real theDeflection,
+			       const Standard_Real theAngle,
+			       OSD_Function& theF,
+			       BRepMesh_PDiscretRoot& theAlgo)
+{
+  Standard_Integer iErr;
+  Standard_Integer (*fp) (const TopoDS_Shape& ,
+			  const Standard_Real ,
+			  const Standard_Real ,
+			  BRepMesh_PDiscretRoot& );
+  //
+  fp=(Standard_Integer (*)(const TopoDS_Shape& ,
+			   const Standard_Real ,
+			   const Standard_Real ,
+			   BRepMesh_PDiscretRoot&)) theF;
+  //
+  iErr=(*fp)(theShape,
+	     theDeflection,
+	     theAngle,
+	     theAlgo);
+  //
+  return iErr;
+}     
+//=======================================================================
+//function : MakeLibName
+//purpose  : 
+//=======================================================================
+void MakeLibName(const TCollection_AsciiString& theDefaultName, 
+		 TCollection_AsciiString& theLibName)
+{
+  theLibName="";
+#ifndef WNT
+  theLibName+="lib";
+#endif
+  theLibName+=theDefaultName;
+#ifdef WNT
+  theLibName+=".dll";
+#elif __APPLE__
+  theLibName+=".dylib";
+#elif defined (HPUX) || defined(_hpux)
+  theLibName+=".sl";
+#else
+  theLibName+=".so";
+#endif  
+}