OpenMesh
AutoPropertyHandleT.hh
1 /* ========================================================================= *
2  * *
3  * OpenMesh *
4  * Copyright (c) 2001-2015, RWTH-Aachen University *
5  * Department of Computer Graphics and Multimedia *
6  * All rights reserved. *
7  * www.openmesh.org *
8  * *
9  *---------------------------------------------------------------------------*
10  * This file is part of OpenMesh. *
11  *---------------------------------------------------------------------------*
12  * *
13  * Redistribution and use in source and binary forms, with or without *
14  * modification, are permitted provided that the following conditions *
15  * are met: *
16  * *
17  * 1. Redistributions of source code must retain the above copyright notice, *
18  * this list of conditions and the following disclaimer. *
19  * *
20  * 2. Redistributions in binary form must reproduce the above copyright *
21  * notice, this list of conditions and the following disclaimer in the *
22  * documentation and/or other materials provided with the distribution. *
23  * *
24  * 3. Neither the name of the copyright holder nor the names of its *
25  * contributors may be used to endorse or promote products derived from *
26  * this software without specific prior written permission. *
27  * *
28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39  * *
40  * ========================================================================= */
41 
42 /*===========================================================================*\
43  * *
44  * $Revision$ *
45  * $Date$ *
46  * *
47 \*===========================================================================*/
48 
49 #ifndef OPENMESH_AutoPropertyHandleT_HH
50 #define OPENMESH_AutoPropertyHandleT_HH
51 
52 //== INCLUDES =================================================================
53 #include <assert.h>
54 #include <string>
55 
56 //== NAMESPACES ===============================================================
57 
58 namespace OpenMesh {
59 
60 //== CLASS DEFINITION =========================================================
61 
62 template <class Mesh_, class PropertyHandle_>
63 class AutoPropertyHandleT : public PropertyHandle_
64 {
65 public:
66  typedef Mesh_ Mesh;
67  typedef PropertyHandle_ PropertyHandle;
68  typedef PropertyHandle Base;
69  typedef typename PropertyHandle::Value Value;
71  Self;
72 protected:
73  Mesh* m_;
74  bool own_property_;//ref counting?
75 
76 public:
78  : m_(NULL), own_property_(false)
79  {}
80 
81  AutoPropertyHandleT(const Self& _other)
82  : Base(_other.idx()), m_(_other.m_), own_property_(false)
83  {}
84 
85  explicit AutoPropertyHandleT(Mesh& _m, const std::string& _pp_name = std::string())
86  { add_property(_m, _pp_name); }
87 
88  AutoPropertyHandleT(Mesh& _m, PropertyHandle _pph)
89  : Base(_pph.idx()), m_(&_m), own_property_(false)
90  {}
91 
93  {
94  if (own_property_)
95  {
96  m_->remove_property(*this);
97  }
98  }
99 
100  inline void add_property(Mesh& _m, const std::string& _pp_name = std::string())
101  {
102  assert(!is_valid());
103  m_ = &_m;
104  own_property_ = _pp_name.empty() || !m_->get_property_handle(*this, _pp_name);
105  if (own_property_)
106  {
107  m_->add_property(*this, _pp_name);
108  }
109  }
110 
111  inline void remove_property()
112  {
113  assert(own_property_);//only the owner can delete the property
114  m_->remove_property(*this);
115  own_property_ = false;
116  invalidate();
117  }
118 
119  template <class _Handle>
120  inline Value& operator [] (_Handle _hnd)
121  { return m_->property(*this, _hnd); }
122 
123  template <class _Handle>
124  inline const Value& operator [] (_Handle _hnd) const
125  { return m_->property(*this, _hnd); }
126 
127  inline bool own_property() const
128  { return own_property_; }
129 
130  inline void free_property()
131  { own_property_ = false; }
132 };
133 
134 //=============================================================================
135 } // namespace OpenMesh
136 //=============================================================================
137 #endif // OPENMESH_AutoPropertyHandleT_HH defined
138 //=============================================================================
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
Definition: AutoPropertyHandleT.hh:63

Project OpenMesh, ©  Computer Graphics Group, RWTH Aachen. Documentation generated using doxygen .