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