0030635: Visualization - move OpenGl_Layer to Graphic3d_Layer

Renamed classes (moved from TKOpenGl to TKV3d):
- OpenGl_Layer -> Graphic3d_Layer;
- OpenGl_BVHClipPrimitiveSet -> Graphic3d_BvhCStructureSet;
- OpenGl_BVHClipPrimitiveTrsfPersSet -> Graphic3d_BvhCStructureSetTrsfPers;
- OpenGl_BVHTreeSelector -> Graphic3d_CullingTool.

Method OpenGl_Layer::Render() has been moved to OpenGl_LayerList::renderLayer().

Standard Z-layers list definition has been moved
from OpenGl_GraphicDriver to base class Graphic3d_GraphicDriver.

src/Graphic3d/Graphic3d_BvhCStructureSet.cxx

@@ -0,0 +1,130 @@
+// Created on: 2013-12-25
+// Created by: Varvara POSKONINA
+// Copyright (c) 1999-2014 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#include <Graphic3d_BvhCStructureSet.hxx>
+
+#include <BVH_BinnedBuilder.hxx>
+#include <Graphic3d_CStructure.hxx>
+
+IMPLEMENT_STANDARD_RTTIEXT(Graphic3d_BvhCStructureSet, BVH_PrimitiveSet3d)
+
+// =======================================================================
+// function : Graphic3d_BvhCStructureSet
+// purpose  :
+// =======================================================================
+Graphic3d_BvhCStructureSet::Graphic3d_BvhCStructureSet()
+{
+  myBuilder = new BVH_BinnedBuilder<Standard_Real, 3> (BVH_Constants_LeafNodeSizeSingle, BVH_Constants_MaxTreeDepth);
+}
+
+// =======================================================================
+// function : Size
+// purpose  :
+// =======================================================================
+Standard_Integer Graphic3d_BvhCStructureSet::Size() const
+{
+  return myStructs.Size();
+}
+
+// =======================================================================
+// function : Box
+// purpose  :
+// =======================================================================
+Graphic3d_BndBox3d Graphic3d_BvhCStructureSet::Box (const Standard_Integer theIdx) const
+{
+  return myStructs.FindKey (theIdx + 1)->BoundingBox();
+}
+
+// =======================================================================
+// function : Center
+// purpose  :
+// =======================================================================
+Standard_Real Graphic3d_BvhCStructureSet::Center (const Standard_Integer theIdx,
+                                                  const Standard_Integer theAxis) const
+{
+  Graphic3d_BndBox3d aBndBox = myStructs.FindKey (theIdx + 1)->BoundingBox();
+
+  const Standard_Real aMin = aBndBox.CornerMin()[theAxis];
+  const Standard_Real aMax = aBndBox.CornerMax()[theAxis];
+  const Standard_Real aCenter = (aMin + aMax) * 0.5;
+  return aCenter;
+}
+
+// =======================================================================
+// function : Swap
+// purpose  :
+// =======================================================================
+void Graphic3d_BvhCStructureSet::Swap (const Standard_Integer theIdx1,
+                                       const Standard_Integer theIdx2)
+{
+  myStructs.Swap (theIdx1 + 1, theIdx2 + 1);
+}
+
+// =======================================================================
+// function : Add
+// purpose  :
+// =======================================================================
+Standard_Boolean Graphic3d_BvhCStructureSet::Add (const Graphic3d_CStructure* theStruct)
+{
+  const Standard_Integer aSize = myStructs.Size();
+
+  if (myStructs.Add (theStruct) > aSize) // new structure?
+  {
+    MarkDirty();
+
+    return Standard_True;
+  }
+
+  return Standard_False;
+}
+
+// =======================================================================
+// function : Remove
+// purpose  :
+// =======================================================================
+Standard_Boolean Graphic3d_BvhCStructureSet::Remove (const Graphic3d_CStructure* theStruct)
+{
+  const Standard_Integer anIndex = myStructs.FindIndex (theStruct);
+
+  if (anIndex != 0)
+  {
+    myStructs.Swap (Size(), anIndex);
+    myStructs.RemoveLast();
+    MarkDirty();
+
+    return Standard_True;
+  }
+
+  return Standard_False;
+}
+
+// =======================================================================
+// function : Clear
+// purpose  :
+// =======================================================================
+void Graphic3d_BvhCStructureSet::Clear()
+{
+  myStructs.Clear();
+  MarkDirty();
+}
+
+// =======================================================================
+// function : GetStructureById
+// purpose  :
+// =======================================================================
+const Graphic3d_CStructure* Graphic3d_BvhCStructureSet::GetStructureById (Standard_Integer theId)
+{
+  return myStructs.FindKey (theId + 1);
+}