First checkin for OpenMesh 2.0

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597

Tools/VDPM/VFront.hh

@@ -0,0 +1,91 @@
+/*===========================================================================*\
+ *                                                                           *
+ *                               OpenMesh                                    *
+ *      Copyright (C) 2001-2003 by Computer Graphics Group, RWTH Aachen      *
+ *                           www.openmesh.org                                *
+ *                                                                           *
+ *---------------------------------------------------------------------------* 
+ *                                                                           *
+ *                                License                                    *
+ *                                                                           *
+ *  This library is free software; you can redistribute it and/or modify it  *
+ *  under the terms of the GNU Lesser General Public License as published    *
+ *  by the Free Software Foundation, version 2.1.                            *
+ *                                                                           *
+ *  This library is distributed in the hope that it will be useful, but      *
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
+ *  Lesser General Public License for more details.                          *
+ *                                                                           *
+ *  You should have received a copy of the GNU Lesser General Public         *
+ *  License along with this library; if not, write to the Free Software      *
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
+ *                                                                           *
+\*===========================================================================*/
+
+//=============================================================================
+//
+//  CLASS newClass
+//
+//=============================================================================
+
+#ifndef OPENMESH_VDPROGMESH_VFRONT_HH
+#define OPENMESH_VDPROGMESH_VFRONT_HH
+
+
+//== INCLUDES =================================================================
+
+#include <OpenMesh/Core/System/config.h>
+#include <OpenMesh/Tools/VDPM/VHierarchyNode.hh>
+#include <vector>
+
+
+//== FORWARDDECLARATIONS ======================================================
+
+
+//== NAMESPACES ===============================================================
+
+namespace OpenMesh {
+namespace VDPM {
+
+//== CLASS DEFINITION =========================================================
+
+	      
+/** Active nodes in vertex hierarchy.
+    \todo VFront documentation
+*/
+class VFront
+{
+private:
+
+  typedef VHierarchyNodeHandleList::iterator  VHierarchyNodeHandleListIter;
+  enum VHierarchyNodeStatus { kSplit, kActive, kCollapse };
+  
+  VHierarchyNodeHandleList                    front_;
+  VHierarchyNodeHandleListIter                front_it_;
+  std::vector<VHierarchyNodeHandleListIter>   front_location_;
+
+public:
+
+  VFront();
+
+  void clear() { front_.clear(); front_location_.clear(); }
+  void begin() { front_it_ = front_.begin(); }
+  bool end()   { return (front_it_ == front_.end()) ? true : false; }
+  void next()  { ++front_it_; }
+  int size()   { return (int) front_.size(); }
+  VHierarchyNodeHandle node_handle()    { return  *front_it_; }
+
+  void add(VHierarchyNodeHandle _node_handle);
+  void remove(VHierarchyNodeHandle _node_handle);
+  bool is_active(VHierarchyNodeHandle _node_handle);
+  void init(VHierarchyNodeHandleContainer &_roots, unsigned int _n_details);  
+};
+
+
+//=============================================================================
+} // namespace VDPM
+} // namespace OpenMesh
+//=============================================================================
+#endif // OPENMESH_VDPROGMESH_VFRONT_HH defined
+//=============================================================================