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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __FREESTYLE_PREDICATES_0D_H__
#define __FREESTYLE_PREDICATES_0D_H__
/** \file
* \ingroup freestyle
* \brief Class gathering stroke creation algorithms
*/
#include "../view_map/Functions0D.h"
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
namespace Freestyle {
//
// UnaryPredicate0D (base class for predicates in 0D)
//
///////////////////////////////////////////////////////////
/*! Base class for Unary Predicates that work on Interface0DIterator.
* A UnaryPredicate0D is a functor that evaluates a condition on a Interface0DIterator and returns
* true or false depending on whether this condition is satisfied or not.
* The UnaryPredicate0D is used by calling its () operator.
* Any inherited class must overload the () operator.
*/
class UnaryPredicate0D {
public:
bool result;
void *py_up0D;
/*! Default constructor. */
UnaryPredicate0D()
{
py_up0D = 0;
}
/*! Destructor. */
virtual ~UnaryPredicate0D()
{
}
/*! Returns the string of the name of the UnaryPredicate0D. */
virtual string getName() const
{
return "UnaryPredicate0D";
}
/*! The () operator. Must be overload by inherited classes.
* \param it:
* The Interface0DIterator pointing onto the Interface0D at which we wish to evaluate the
* predicate. \return true if the condition is satisfied, false otherwise.
*/
virtual int operator()(Interface0DIterator &it);
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:UnaryPredicate0D")
#endif
};
//
// BinaryPredicate0D (base class for predicates in 0D)
//
///////////////////////////////////////////////////////////
/*! Base class for Binary Predicates working on Interface0D.
* A BinaryPredicate0D is typically an ordering relation between two Interface0D.
* It evaluates a relation between 2 Interface0D and returns true or false.
* It is used by calling the () operator.
*/
class BinaryPredicate0D {
public:
bool result;
void *py_bp0D;
/*! Default constructor. */
BinaryPredicate0D()
{
py_bp0D = 0;
}
/*! Destructor. */
virtual ~BinaryPredicate0D()
{
}
/*! Returns the string of the name of the binary predicate. */
virtual string getName() const
{
return "BinaryPredicate0D";
}
/*! The () operator. Must be overload by inherited classes.
* It evaluates a relation between 2 Interface0D.
* \param inter1:
* The first Interface0D.
* \param inter2:
* The second Interface0D.
* \return true or false.
*/
virtual int operator()(Interface0D &inter1, Interface0D &inter2);
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:BinaryPredicate0D")
#endif
};
//
// Predicates definitions
//
///////////////////////////////////////////////////////////
namespace Predicates0D {
// TrueUP0D
/*! Returns true any time */
class TrueUP0D : public UnaryPredicate0D {
public:
/*! Default constructor. */
TrueUP0D()
{
}
/*! Returns the string "TrueUP0D"*/
string getName() const
{
return "TrueUP0D";
}
/*! The () operator. */
int operator()(Interface0DIterator &)
{
result = true;
return 0;
}
};
// FalseUP0D
/*! Returns false any time */
class FalseUP0D : public UnaryPredicate0D {
public:
/*! Default constructor. */
FalseUP0D()
{
}
/*! Returns the string "FalseUP0D"*/
string getName() const
{
return "FalseUP0D";
}
/*! The () operator. */
int operator()(Interface0DIterator &)
{
result = false;
return 0;
}
};
} // end of namespace Predicates0D
} /* namespace Freestyle */
#endif // __FREESTYLE_PREDICATES_0D_H__
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