e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
160 lines
3.5 KiB
C++
160 lines
3.5 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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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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/** 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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/** 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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/** 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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/** 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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