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First checkin for OpenMesh 2.0

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git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
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Jan Möbius
2009-02-06 13:37:46 +00:00
parent c3321ebdd9
commit 97f515985d
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Core/Utils/Property.hh Normal file
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/*===========================================================================*\
* *
* 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. *
* *
\*===========================================================================*/
#ifndef OPENMESH_PROPERTY_HH
#define OPENMESH_PROPERTY_HH
//== INCLUDES =================================================================
#include <OpenMesh/Core/System/config.h>
#include <OpenMesh/Core/Mesh/Handles.hh>
#include <OpenMesh/Core/Utils/BaseProperty.hh>
#include <vector>
#include <string>
#include <algorithm>
//== NAMESPACES ===============================================================
namespace OpenMesh {
//== CLASS DEFINITION =========================================================
/** \class PropertyT Property.hh <OpenMesh/Core/Utils/PropertyT.hh>
*
* \brief Default property class for any type T.
*
* The default property class for any type T.
*
* The property supports persistency if T is a "fundamental" type:
* - integer fundamental types except bool:
* char, short, int, long, long long (__int64 for MS VC++) and
* their unsigned companions.
* - float fundamentals except <tt>long double</tt>:
* float, double
* - %OpenMesh vector types
*
* Persistency of non-fundamental types is supported if and only if a
* specialization of struct IO::binary<> exists for the wanted type.
*/
// TODO: it might be possible to define Property using kind of a runtime info
// structure holding the size of T. Then reserve, swap, resize, etc can be written
// in pure malloc() style w/o virtual overhead. Template member function proved per
// element access to the properties, asserting dynamic_casts in debug
template <class T>
class PropertyT : public BaseProperty
{
public:
typedef T Value;
typedef std::vector<T> vector_type;
typedef T value_type;
typedef typename vector_type::reference reference;
typedef typename vector_type::const_reference const_reference;
public:
/// Default constructor
PropertyT(const std::string& _name = "<unknown>")
: BaseProperty(_name)
{}
/// Copy constructor
PropertyT(const PropertyT & _rhs)
: BaseProperty( _rhs ), data_( _rhs.data_ ) {}
public: // inherited from BaseProperty
virtual void reserve(size_t _n) { data_.reserve(_n); }
virtual void resize(size_t _n) { data_.resize(_n); }
virtual void push_back() { data_.push_back(T()); }
virtual void swap(size_t _i0, size_t _i1)
{ std::swap(data_[_i0], data_[_i1]); }
public:
virtual void set_persistent( bool _yn )
{ check_and_set_persistent<T>( _yn ); }
virtual size_t n_elements() const { return data_.size(); }
virtual size_t element_size() const { return IO::size_of<T>(); }
#ifndef DOXY_IGNORE_THIS
struct plus {
size_t operator () ( size_t _b, const T& _v )
{ return _b + IO::size_of<T>(_v); }
};
#endif
virtual size_t size_of(void) const
{
if (element_size() != IO::UnknownSize)
return this->BaseProperty::size_of(n_elements());
return std::accumulate(data_.begin(), data_.end(), 0, plus());
}
virtual size_t size_of(size_t _n_elem) const
{ return this->BaseProperty::size_of(_n_elem); }
virtual size_t store( std::ostream& _ostr, bool _swap ) const
{
if ( IO::is_streamable<vector_type>() )
return IO::store(_ostr, data_, _swap );
size_t bytes = 0;
for (size_t i=0; i<n_elements(); ++i)
bytes += IO::store( _ostr, data_[i], _swap );
return bytes;
}
virtual size_t restore( std::istream& _istr, bool _swap )
{
if ( IO::is_streamable<vector_type>() )
return IO::restore(_istr, data_, _swap );
size_t bytes = 0;
for (size_t i=0; i<n_elements(); ++i)
bytes += IO::restore( _istr, data_[i], _swap );
return bytes;
}
public: // data access interface
/// Get pointer to array (does not work for T==bool)
const T* data() const {
if( data_.empty() )
return 0;
return &data_[0];
}
/// Access the i'th element. No range check is performed!
reference operator[](int _idx)
{
assert( size_t(_idx) < data_.size() );
return data_[_idx];
}
/// Const access to the i'th element. No range check is performed!
const_reference operator[](int _idx) const
{
assert( size_t(_idx) < data_.size());
return data_[_idx];
}
/// Make a copy of self.
PropertyT<T>* clone() const
{
PropertyT<T>* p = new PropertyT<T>( *this );
return p;
}
private:
vector_type data_;
};
//-----------------------------------------------------------------------------
/** \class PropertyT<bool> Property.hh <OpenMesh/Core/Utils/PropertyT.hh>
Property specialization for bool type. The data will be stored as
a bitset.
*/
template <>
class PropertyT<bool> : public BaseProperty
{
public:
typedef std::vector<bool> vector_type;
typedef bool value_type;
typedef vector_type::reference reference;
typedef vector_type::const_reference const_reference;
public:
PropertyT(const std::string& _name = "<unknown>")
: BaseProperty(_name)
{ }
public: // inherited from BaseProperty
virtual void reserve(size_t _n) { data_.reserve(_n); }
virtual void resize(size_t _n) { data_.resize(_n); }
virtual void push_back() { data_.push_back(bool()); }
virtual void swap(size_t _i0, size_t _i1)
{ bool t(data_[_i0]); data_[_i0]=data_[_i1]; data_[_i1]=t; }
public:
virtual void set_persistent( bool _yn )
{
check_and_set_persistent<bool>( _yn );
}
virtual size_t n_elements() const { return data_.size(); }
virtual size_t element_size() const { return UnknownSize; }
virtual size_t size_of() const { return size_of( n_elements() ); }
virtual size_t size_of(size_t _n_elem) const
{
return _n_elem / 8 + ((_n_elem % 8)!=0);
}
size_t store( std::ostream& _ostr, bool /* _swap */ ) const
{
size_t bytes = 0;
size_t N = data_.size() / 8;
size_t R = data_.size() % 8;
size_t idx; // element index
size_t bidx;
unsigned char bits; // bitset
for (bidx=idx=0; idx < N; ++idx, bidx+=8)
{
bits = !!data_[bidx]
| (!!data_[bidx+1] << 1)
| (!!data_[bidx+2] << 2)
| (!!data_[bidx+3] << 3)
| (!!data_[bidx+4] << 4)
| (!!data_[bidx+5] << 5)
| (!!data_[bidx+6] << 6)
| (!!data_[bidx+7] << 7);
_ostr << bits;
}
bytes = N;
if (R)
{
bits = 0;
for (idx=0; idx < R; ++idx)
bits |= !!data_[bidx+idx] << idx;
_ostr << bits;
++bytes;
}
std::cout << std::endl;
assert( bytes == size_of() );
return bytes;
}
size_t restore( std::istream& _istr, bool /* _swap */ )
{
size_t bytes = 0;
size_t N = data_.size() / 8;
size_t R = data_.size() % 8;
size_t idx; // element index
size_t bidx; //
unsigned char bits; // bitset
for (bidx=idx=0; idx < N; ++idx, bidx+=8)
{
_istr >> bits;
data_[bidx+0] = !!(bits & 0x01);
data_[bidx+1] = !!(bits & 0x02);
data_[bidx+2] = !!(bits & 0x04);
data_[bidx+3] = !!(bits & 0x08);
data_[bidx+4] = !!(bits & 0x10);
data_[bidx+5] = !!(bits & 0x20);
data_[bidx+6] = !!(bits & 0x40);
data_[bidx+7] = !!(bits & 0x80);
}
bytes = N;
if (R)
{
_istr >> bits;
for (idx=0; idx < R; ++idx)
data_[bidx+idx] = !!(bits & (1<<idx));
++bytes;
}
std::cout << std::endl;
return bytes;
}
public:
/// Access the i'th element. No range check is performed!
reference operator[](int _idx)
{
assert( size_t(_idx) < data_.size() );
return data_[_idx];
}
/// Const access to the i'th element. No range check is performed!
const_reference operator[](int _idx) const
{
assert( size_t(_idx) < data_.size());
return data_[_idx];
}
/// Make a copy of self.
PropertyT<bool>* clone() const
{
PropertyT<bool>* p = new PropertyT<bool>( *this );
return p;
}
private:
vector_type data_;
};
//-----------------------------------------------------------------------------
/** \class PropertyT<std::string> Property.hh <OpenMesh/Core/Utils/PropertyT.hh>
Property specialization for std::string type.
*/
template <>
class PropertyT<std::string> : public BaseProperty
{
public:
typedef std::string Value;
typedef std::vector<std::string> vector_type;
typedef std::string value_type;
typedef vector_type::reference reference;
typedef vector_type::const_reference const_reference;
public:
PropertyT(const std::string& _name = "<unknown>")
: BaseProperty(_name)
{ }
public: // inherited from BaseProperty
virtual void reserve(size_t _n) { data_.reserve(_n); }
virtual void resize(size_t _n) { data_.resize(_n); }
virtual void push_back() { data_.push_back(std::string()); }
virtual void swap(size_t _i0, size_t _i1) {
std::swap(data_[_i0], data_[_i1]);
}
public:
virtual void set_persistent( bool _yn )
{ check_and_set_persistent<std::string>( _yn ); }
virtual size_t n_elements() const { return data_.size(); }
virtual size_t element_size() const { return UnknownSize; }
virtual size_t size_of() const
{ return IO::size_of( data_ ); }
virtual size_t size_of(size_t /* _n_elem */) const
{ return UnknownSize; }
/// Store self as one binary block. Max. length of a string is 65535 bytes.
size_t store( std::ostream& _ostr, bool _swap ) const
{ return IO::store( _ostr, data_, _swap ); }
size_t restore( std::istream& _istr, bool _swap )
{ return IO::restore( _istr, data_, _swap ); }
public:
const value_type* data() const {
if( data_.empty() )
return 0;
return (value_type*) &data_[0];
}
/// Access the i'th element. No range check is performed!
reference operator[](int _idx) {
assert( size_t(_idx) < data_.size());
return ((value_type*) &data_[0])[_idx];
}
/// Const access the i'th element. No range check is performed!
const_reference operator[](int _idx) const {
assert( size_t(_idx) < data_.size());
return ((value_type*) &data_[0])[_idx];
}
PropertyT<value_type>* clone() const {
PropertyT<value_type>* p = new PropertyT<value_type>( *this );
return p;
}
private:
vector_type data_;
};
/// Base property handle.
template <class T>
struct BasePropHandleT : public BaseHandle
{
typedef T Value;
typedef std::vector<T> vector_type;
typedef T value_type;
typedef typename vector_type::reference reference;
typedef typename vector_type::const_reference const_reference;
explicit BasePropHandleT(int _idx=-1) : BaseHandle(_idx) {}
};
/** \ingroup mesh_property_handle_group
* Handle representing a vertex property
*/
template <class T>
struct VPropHandleT : public BasePropHandleT<T>
{
typedef T Value;
typedef T value_type;
explicit VPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
explicit VPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
};
/** \ingroup mesh_property_handle_group
* Handle representing a halfedge property
*/
template <class T>
struct HPropHandleT : public BasePropHandleT<T>
{
typedef T Value;
typedef T value_type;
explicit HPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
explicit HPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
};
/** \ingroup mesh_property_handle_group
* Handle representing an edge property
*/
template <class T>
struct EPropHandleT : public BasePropHandleT<T>
{
typedef T Value;
typedef T value_type;
explicit EPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
explicit EPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
};
/** \ingroup mesh_property_handle_group
* Handle representing a face property
*/
template <class T>
struct FPropHandleT : public BasePropHandleT<T>
{
typedef T Value;
typedef T value_type;
explicit FPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
explicit FPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
};
/** \ingroup mesh_property_handle_group
* Handle representing a mesh property
*/
template <class T>
struct MPropHandleT : public BasePropHandleT<T>
{
typedef T Value;
typedef T value_type;
explicit MPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
explicit MPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
};
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_PROPERTY_HH defined
//=============================================================================