134 lines
5.8 KiB
C++
134 lines
5.8 KiB
C++
/* ========================================================================= *
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* *
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* OpenMesh *
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* Copyright (c) 2001-2023, RWTH-Aachen University *
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* Department of Computer Graphics and Multimedia *
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* All rights reserved. *
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* www.openmesh.org *
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* *
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*---------------------------------------------------------------------------*
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* This file is part of OpenMesh. *
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*---------------------------------------------------------------------------*
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* *
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* Redistribution and use in source and binary forms, with or without *
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* modification, are permitted provided that the following conditions *
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* are met: *
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* *
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* 1. Redistributions of source code must retain the above copyright notice, *
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* this list of conditions and the following disclaimer. *
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* *
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* 2. Redistributions in binary form must reproduce the above copyright *
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* notice, this list of conditions and the following disclaimer in the *
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* documentation and/or other materials provided with the distribution. *
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* *
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* 3. Neither the name of the copyright holder nor the names of its *
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* contributors may be used to endorse or promote products derived from *
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* this software without specific prior written permission. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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* *
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* ========================================================================= */
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#ifndef OPENMESH_AutoPropertyHandleT_HH
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#define OPENMESH_AutoPropertyHandleT_HH
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//== INCLUDES =================================================================
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#include <assert.h>
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#include <string>
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//== NAMESPACES ===============================================================
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namespace OpenMesh {
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//== CLASS DEFINITION =========================================================
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template <class Mesh_, class PropertyHandle_>
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class AutoPropertyHandleT : public PropertyHandle_
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{
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public:
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typedef Mesh_ Mesh;
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typedef PropertyHandle_ PropertyHandle;
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typedef PropertyHandle Base;
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typedef typename PropertyHandle::Value Value;
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typedef AutoPropertyHandleT<Mesh, PropertyHandle>
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Self;
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protected:
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Mesh* m_;
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bool own_property_;//ref counting?
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public:
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AutoPropertyHandleT()
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: m_(nullptr), own_property_(false)
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{}
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AutoPropertyHandleT(const Self& _other)
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: Base(_other.idx()), m_(_other.m_), own_property_(false)
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{}
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explicit AutoPropertyHandleT(Mesh& _m, const std::string& _pp_name = std::string())
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{ add_property(_m, _pp_name); }
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AutoPropertyHandleT(Mesh& _m, PropertyHandle _pph)
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: Base(_pph.idx()), m_(&_m), own_property_(false)
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{}
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~AutoPropertyHandleT()
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{
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if (own_property_)
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{
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m_->remove_property(*this);
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}
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}
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inline void add_property(Mesh& _m, const std::string& _pp_name = std::string())
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{
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assert(!is_valid());
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m_ = &_m;
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own_property_ = _pp_name.empty() || !m_->get_property_handle(*this, _pp_name);
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if (own_property_)
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{
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m_->add_property(*this, _pp_name);
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}
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}
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inline void remove_property()
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{
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assert(own_property_);//only the owner can delete the property
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m_->remove_property(*this);
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own_property_ = false;
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invalidate();
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}
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template <class _Handle>
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inline Value& operator [] (_Handle _hnd)
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{ return m_->property(*this, _hnd); }
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template <class _Handle>
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inline const Value& operator [] (_Handle _hnd) const
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{ return m_->property(*this, _hnd); }
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inline bool own_property() const
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{ return own_property_; }
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inline void free_property()
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{ own_property_ = false; }
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};
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//=============================================================================
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} // namespace OpenMesh
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//=============================================================================
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#endif // OPENMESH_AutoPropertyHandleT_HH defined
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//=============================================================================
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