00001 /*===========================================================================*\ 00002 * * 00003 * OpenMesh * 00004 * Copyright (C) 2001-2010 by Computer Graphics Group, RWTH Aachen * 00005 * www.openmesh.org * 00006 * * 00007 *---------------------------------------------------------------------------* 00008 * This file is part of OpenMesh. * 00009 * * 00010 * OpenMesh is free software: you can redistribute it and/or modify * 00011 * it under the terms of the GNU Lesser General Public License as * 00012 * published by the Free Software Foundation, either version 3 of * 00013 * the License, or (at your option) any later version with the * 00014 * following exceptions: * 00015 * * 00016 * If other files instantiate templates or use macros * 00017 * or inline functions from this file, or you compile this file and * 00018 * link it with other files to produce an executable, this file does * 00019 * not by itself cause the resulting executable to be covered by the * 00020 * GNU Lesser General Public License. This exception does not however * 00021 * invalidate any other reasons why the executable file might be * 00022 * covered by the GNU Lesser General Public License. * 00023 * * 00024 * OpenMesh is distributed in the hope that it will be useful, * 00025 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00026 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00027 * GNU Lesser General Public License for more details. * 00028 * * 00029 * You should have received a copy of the GNU LesserGeneral Public * 00030 * License along with OpenMesh. If not, * 00031 * see <http://www.gnu.org/licenses/>. * 00032 * * 00033 \*===========================================================================*/ 00034 00035 /*===========================================================================*\ 00036 * * 00037 * $Revision: 325 $ * 00038 * $Date: 2010-06-17 12:45:58 +0200 (Do, 17 Jun 2010) $ * 00039 * * 00040 \*===========================================================================*/ 00041 00042 #ifndef OPENMESH_HANDLES_HH 00043 #define OPENMESH_HANDLES_HH 00044 00045 00046 //== INCLUDES ================================================================= 00047 00048 #include <OpenMesh/Core/System/config.h> 00049 #include <iostream> 00050 00051 00052 //== NAMESPACES =============================================================== 00053 00054 namespace OpenMesh { 00055 00056 //== CLASS DEFINITION ========================================================= 00057 00058 00060 class BaseHandle 00061 { 00062 public: 00063 00064 explicit BaseHandle(int _idx=-1) : idx_(_idx) {} 00065 00067 int idx() const { return idx_; } 00068 00070 bool is_valid() const { return idx_ != -1; } 00071 00073 void reset() { idx_=-1; } 00075 void invalidate() { idx_ = -1; } 00076 00077 bool operator==(const BaseHandle& _rhs) const { 00078 return idx_ == _rhs.idx_; 00079 } 00080 00081 bool operator!=(const BaseHandle& _rhs) const { 00082 return idx_ != _rhs.idx_; 00083 } 00084 00085 bool operator<(const BaseHandle& _rhs) const { 00086 return idx_ < _rhs.idx_; 00087 } 00088 00089 00090 // this is to be used only by the iterators 00091 void __increment() { ++idx_; } 00092 void __decrement() { --idx_; } 00093 00094 00095 private: 00096 00097 int idx_; 00098 }; 00099 00100 00101 //----------------------------------------------------------------------------- 00102 00104 inline std::ostream& operator<<(std::ostream& _os, const BaseHandle& _hnd) 00105 { 00106 return (_os << _hnd.idx()); 00107 } 00108 00109 00110 //----------------------------------------------------------------------------- 00111 00112 00114 struct VertexHandle : public BaseHandle 00115 { 00116 explicit VertexHandle(int _idx=-1) : BaseHandle(_idx) {} 00117 }; 00118 00119 00121 struct HalfedgeHandle : public BaseHandle 00122 { 00123 explicit HalfedgeHandle(int _idx=-1) : BaseHandle(_idx) {} 00124 }; 00125 00126 00128 struct EdgeHandle : public BaseHandle 00129 { 00130 explicit EdgeHandle(int _idx=-1) : BaseHandle(_idx) {} 00131 }; 00132 00133 00135 struct FaceHandle : public BaseHandle 00136 { 00137 explicit FaceHandle(int _idx=-1) : BaseHandle(_idx) {} 00138 }; 00139 00140 00141 //============================================================================= 00142 } // namespace OpenMesh 00143 //============================================================================= 00144 #endif // OPENMESH_HANDLES_HH 00145 //=============================================================================