export_traits_prim.h

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/** @file
 *  @author Bram de Greve (bram@cocamware.com)
 *  @author Tom De Muer (tom@cocamware.com)
 *
 *  *** BEGIN LICENSE INFORMATION ***
 *  
 *  The contents of this file are subject to the Common Public Attribution License 
 *  Version 1.0 (the "License"); you may not use this file except in compliance with 
 *  the License. You may obtain a copy of the License at 
 *  http://lass.sourceforge.net/cpal-license. The License is based on the 
 *  Mozilla Public License Version 1.1 but Sections 14 and 15 have been added to cover 
 *  use of software over a computer network and provide for limited attribution for 
 *  the Original Developer. In addition, Exhibit A has been modified to be consistent 
 *  with Exhibit B.
 *  
 *  Software distributed under the License is distributed on an "AS IS" basis, WITHOUT 
 *  WARRANTY OF ANY KIND, either express or implied. See the License for the specific 
 *  language governing rights and limitations under the License.
 *  
 *  The Original Code is LASS - Library of Assembled Shared Sources.
 *  
 *  The Initial Developer of the Original Code is Bram de Greve and Tom De Muer.
 *  The Original Developer is the Initial Developer.
 *  
 *  All portions of the code written by the Initial Developer are:
 *  Copyright (C) 2004-2025 the Initial Developer.
 *  All Rights Reserved.
 *  
 *  Contributor(s):
 *
 *  Alternatively, the contents of this file may be used under the terms of the 
 *  GNU General Public License Version 2 or later (the GPL), in which case the 
 *  provisions of GPL are applicable instead of those above.  If you wish to allow use
 *  of your version of this file only under the terms of the GPL and not to allow 
 *  others to use your version of this file under the CPAL, indicate your decision by 
 *  deleting the provisions above and replace them with the notice and other 
 *  provisions required by the GPL License. If you do not delete the provisions above,
 *  a recipient may use your version of this file under either the CPAL or the GPL.
 *  
 *  *** END LICENSE INFORMATION ***
 */
 
 
#ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H
#define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H
 
#include "python_common.h"
#include "pyobject_plus.h"
#include "py_tuple.h"
 
namespace lass
{
namespace python
{
namespace impl
{
 
template <typename ObjectType, typename ExportTraits, size_t dimension = ObjectType::dimension>
struct PyExportTraitsVectorPoint
{
    static PyObject* build(const ObjectType& v)
    {
        PyObject* const tuple = PyTuple_New(dimension);
        for (size_t i = 0; i < dimension; ++i)
        {
            PyTuple_SetItem(tuple, static_cast<Py_ssize_t>(i), pyBuildSimpleObject(v[i]));
        }
        return tuple;
    }
 
    static int get(PyObject* obj, ObjectType& v)
    {
        const TPyObjPtr tuple = impl::checkedFastSequence(obj, dimension);
        if (!tuple)
        {
            impl::addMessageHeader(ExportTraits::className());
            return 1;
        }
        PyObject** objects = PySequence_Fast_ITEMS(tuple.get());
        ObjectType result;
        for (size_t k = 0; k < dimension; ++k)
        {
            if (!impl::decodeObject(objects[k], static_cast<Py_ssize_t>(k), result[k]))
            {
                impl::addMessageHeader(ExportTraits::className());
                return 1;
            }
        }
        v = result;
        return 0;
    }
};
 
template < typename AabbType, typename ExportTraits >
struct PyExportTraitsPrimAabb
{
    typedef AabbType TAabb;
    static PyObject* build(const TAabb& aabb)
    {
        return fromSharedPtrToNakedCast(makeTuple(aabb.min(), aabb.max()));
    }
    static int get(PyObject* obj, TAabb& aabb)
    {
        typename TAabb::TPoint min, max;
        if (decodeTuple(obj, min, max) != 0)
        {
            impl::addMessageHeader(ExportTraits::className());
            return 1;
        }
        try
        {
            aabb = TAabb(min, max);
        }
        catch (util::Exception& error)
        {
            std::ostringstream buffer;
            buffer << ExportTraits::className() << ": " << error.message();
            PyErr_SetString(PyExc_ValueError, buffer.str().c_str());
            return 1;
        }
        return 0;
    }
};
 
template < typename LineSegmentType, typename ExportTraits >
struct PyExportTraitsPrimLineSegment
{
    typedef LineSegmentType TLineSegment;
    static PyObject* build(const TLineSegment& seg)
    {
        return fromSharedPtrToNakedCast(makeTuple(seg.tail(), seg.head()));
    }
    static int get(PyObject* obj, TLineSegment& seg)
    {
        typename TLineSegment::TPoint tail, head;
        if (decodeTuple(obj, tail, head) != 0)
        {
            impl::addMessageHeader(ExportTraits::className());
            return 1;
        }
        seg = TLineSegment(tail, head);
        return 0;
    }
};
 
template <typename TransformationType, typename ExporTraits>
struct PyExportTraitsPrimTransformation
{
    typedef TransformationType TTransformation;
    typedef typename TransformationType::TValue TValue;
    enum { size = TransformationType::dimension + 1 };
 
    static PyObject* build(const TTransformation& transfo)
    {
        const TValue* const values = transfo.matrix();
        PyObject* const matrix = PyTuple_New(size);
        for (int i = 0; i < size; ++i)
        {
            PyObject* const row = PyTuple_New(size);
            for (int j = 0; j < size; ++j)
            {
                PyTuple_SetItem(row, j, pyBuildSimpleObject(values[i * size + j]));
            }
            PyTuple_SetItem(matrix, i, row);
        }
        return matrix;
    }
 
    static int get(PyObject* obj, TTransformation& transfo)
    {
        TPyObjPtr tuple = impl::checkedFastSequence(obj, size);
        if (!tuple)
        {
            impl::addMessageHeader(ExporTraits::className());
            return 1;
        }
        PyObject** rows = PySequence_Fast_ITEMS(tuple.get());
        TValue values[size * size];
        for (int i = 0; i < size; ++i)
        {
            TPyObjPtr row = impl::checkedFastSequence(rows[i], size);
            if (!row)
            {
                std::ostringstream buffer;
                buffer << ExporTraits::className() << ": row " << i;
                impl::addMessageHeader(buffer.str().c_str());
                return 1;
            }
            PyObject** objects = PySequence_Fast_ITEMS(row.get());
            for (int j = 0; j < size; ++j)
            {
                if (pyGetSimpleObject(objects[j], values[size * i + j]) != 0)
                {
                    std::ostringstream buffer;
                    buffer << ExporTraits::className() << ": row " << i << ", column " << j;
                    impl::addMessageHeader(buffer.str().c_str());
                    return 1;
                }
            }
        }
        transfo = TTransformation(values, values + size * size);
        return 0;
    }
};
 
template <typename PolygonType, typename ExportTraits>
struct PyExportTraitsPrimSimplePolygon
{
    typedef PolygonType TPolygon;
    typedef typename PolygonType::TPoint TPoint;
    static PyObject* build(const TPolygon& poly)
    {
        std::vector<TPoint> points;
        for (unsigned i = 0; i < poly.size(); ++i)
            points.push_back(poly[i]);
        return pyBuildSimpleObject( points );
    }
    static int get(PyObject* obj, TPolygon& poly)
    {
        std::vector<TPoint> points;
        if (pyGetSimpleObject(obj, points) != 0)
        {
            impl::addMessageHeader(ExportTraits::className());
            return 1;
        }
        poly = TPolygon(points.begin(), points.end());
        return 0;
    }
};
 
template <typename AxisType, typename ExportTraits>
struct PyExportTraitsPrimAxis
{
    typedef AxisType TAxis;
    static PyObject* build(const TAxis& axis)
    {
        return pyBuildSimpleObject(std::string(1, axis.axis()));
    }
    static int get(PyObject* obj, TAxis& axis)
    {
        std::string s;
        if (pyGetSimpleObject(obj, s) != 0)
        {
            impl::addMessageHeader(ExportTraits::className());
            return 1;
        }
        try
        {
            axis = TAxis(s);
        }
        catch (util::Exception& error)
        {
            std::ostringstream buffer;
            buffer << ExportTraits::className() << ": " << error.message();
            PyErr_SetString(PyExc_ValueError, buffer.str().c_str());
            return 1;
        }
        return 0;
    }
};
 
LASS_PYTHON_DLL PyObject* LASS_CALL buildIndexVertex(size_t vertex, size_t normal, size_t uv);
LASS_PYTHON_DLL int LASS_CALL getIndexVertex(PyObject* iIndices, size_t& vertex, size_t& normal, size_t& uv);
 
}
}
}
 
#endif
 
namespace lass
{
namespace python
{
 
// --- vectors -------------------------------------------------------------------------------------
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_VECTOR_2D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_VECTOR_2D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_VECTOR_2D
 
/** Maps prim::Vector2D<T> to a Python tuple of two elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T>
struct PyExportTraits< prim::Vector2D<T> >:
    public impl::PyExportTraitsVectorPoint< prim::Vector2D<T>, PyExportTraits< prim::Vector2D<T> > >
{
    constexpr static const char* py_typing = "_Vector2D[T]";
    constexpr static const char* py_typing_preamble = "type _Vector2D[T] = tuple[T, T]";
 
    static const char* className() { return "Vector2D"; }
};
 
#   endif
#endif
 
 
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_VECTOR_3D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_VECTOR_3D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_VECTOR_3D
 
/** Maps prim::Vector3D<T> to a Python tuple of three elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T>
struct PyExportTraits< prim::Vector3D<T> >:
    public impl::PyExportTraitsVectorPoint< prim::Vector3D<T>, PyExportTraits< prim::Vector3D<T> > >
{
    constexpr static const char* py_typing = "_Vector3D[T]";
    constexpr static const char* py_typing_preamble = "type _Vector3D[T] = tuple[T, T, T]";
 
    static const char* className() { return "Vector3D"; }
};
 
#   endif
#endif
 
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_VECTOR_4D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_VECTOR_4D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_VECTOR_4D
 
/** Maps prim::Vector4D<T> to a Python tuple of four elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T>
struct PyExportTraits< prim::Vector4D<T> >:
    public impl::PyExportTraitsVectorPoint< prim::Vector4D<T>, PyExportTraits< prim::Vector4D<T> > >
{
    constexpr static const char* py_typing = "_Vector4D[T]";
    constexpr static const char* py_typing_preamble = "type _Vector4D[T] = tuple[T, T, T, T]";
 
    static const char* className() { return "Vector4D"; }
};
 
#   endif
#endif
 
 
 
// --- points --------------------------------------------------------------------------------------
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_POINT_2D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_POINT_2D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_POINT_2D
 
/** Maps prim::Point2D<T> to a Python tuple of two elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T>
struct PyExportTraits< prim::Point2D<T> >:
    public impl::PyExportTraitsVectorPoint< prim::Point2D<T>, PyExportTraits< prim::Point2D<T> > >
{
    constexpr static const char* py_typing = "_Point2D[T]";
    constexpr static const char* py_typing_preamble = "type _Point2D[T] = tuple[T, T]";
 
    static const char* className() { return "Point2D"; }
};
 
#   endif
#endif
 
 
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_POINT_3D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_POINT_3D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_POINT_3D
 
/** Maps prim::Point3D<T> to a Python tuple of three elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T>
struct PyExportTraits< prim::Point3D<T> >:
    public impl::PyExportTraitsVectorPoint< prim::Point3D<T>, PyExportTraits< prim::Point3D<T> > >
{
    constexpr static const char* py_typing = "_Point3D[T]";
    constexpr static const char* py_typing_preamble = "type _Point3D[T] = tuple[T, T, T]";
 
    static const char* className() { return "Point3D"; }
};
 
#   endif
#endif
 
 
 
// --- boxes ---------------------------------------------------------------------------------------
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_AABB_2D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_AABB_2D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_AABB_2D
 
/** Maps prim::Aabb2D<T> to a Python tuple of two tuples of two elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T, typename MMP>
struct PyExportTraits< prim::Aabb2D<T, MMP> >:
    public impl::PyExportTraitsPrimAabb< prim::Aabb2D<T, MMP>, PyExportTraits< prim::Aabb2D<T, MMP> > >
{
    constexpr static const char* py_typing = "_Aabb2D[T]";
    constexpr static const char* py_typing_preamble =
        "type _Point2D[T] = tuple[T, T]\n"
        "type _Aabb2D[T] = tuple[_Point2D[T], _Point2D[T]]";
 
    static const char* className() { return "Aabb2D"; }
};
 
#   endif
#endif
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_AABB_3D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_AABB_3D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_AABB_3D
 
/** Maps prim::Aabb3D<T> to a Python tuple of two tuples of three elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T, typename MMP>
struct PyExportTraits< prim::Aabb3D<T, MMP> >:
    public impl::PyExportTraitsPrimAabb< prim::Aabb3D<T, MMP>, PyExportTraits< prim::Aabb3D<T, MMP> > >
{
    constexpr static const char* py_typing = "_Aabb3D[T]";
    constexpr static const char* py_typing_preamble =
        "type _Point3D[T] = tuple[T, T, T]\n"
        "type _Aabb3D[T] = tuple[_Point3D[T], _Point3D[T]]";
 
    static const char* className() { return "Aabb3D"; }
};
 
#   endif
#endif
 
 
 
// --- line segments -------------------------------------------------------------------------------
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_LINE_SEGMENT_2D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_LINE_SEGMENT_2D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_LINE_SEGMENT_2D
 
/** Maps prim::LineSegment2D<T> to a Python tuple of two tuples of two elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T, typename PP>
struct PyExportTraits< prim::LineSegment2D<T, PP> >:
    public impl::PyExportTraitsPrimLineSegment< prim::LineSegment2D<T, PP>, PyExportTraits< prim::LineSegment2D<T, PP> > >
{
    constexpr static const char* py_typing = "_LineSegment2D[T]";
    constexpr static const char* py_typing_preamble =
        "type _Point2D[T] = tuple[T, T]\n"
        "type _LineSegment2D[T] = tuple[_Point2D[T], _Point2D[T]]";
 
    static const char* className() { return "LineSegment2D"; }
};
 
#   endif
#endif
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_LINE_SEGMENT_3D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_LINE_SEGMENT_3D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_LINE_SEGMENT_3D
 
/** Maps prim::LineSegment3D<T> to a Python tuple of two tuples of three elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T, typename PP>
struct PyExportTraits< prim::LineSegment3D<T, PP> >:
    public impl::PyExportTraitsPrimLineSegment< prim::LineSegment3D<T, PP>, PyExportTraits< prim::LineSegment3D<T, PP> > >
{
    constexpr static const char* py_typing = "_LineSegment3D[T]";
    constexpr static const char* py_typing_preamble =
        "type _Point3D[T] = tuple[T, T, T]\n"
        "type _LineSegment3D[T] = tuple[_Point3D[T], _Point3D[T]]";
 
    static const char* className() { return "LineSegment3D"; }
};
 
#   endif
#endif
 
 
 
// --- transformations -----------------------------------------------------------------------------
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_TRANSFORMATION_2D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_TRANSFORMATION_2D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_TRANSFORMATION_2D
 
/** Maps prim::Transformation2D<T> to a Python tuple of three tuples of three elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T>
struct PyExportTraits< prim::Transformation2D<T> >: 
    public impl::PyExportTraitsPrimTransformation< prim::Transformation2D<T>, PyExportTraits< prim::Transformation2D<T> > >
{
    constexpr static const char* py_typing = "_Transformation2D[T]";
    constexpr static const char* py_typing_preamble = "type _Transformation2D[T] = tuple[tuple[T, T, T], tuple[T, T, T], tuple[T, T, T]]";
 
    static const char* className() { return "Transformation2D"; }
};
 
#   endif
#endif
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_TRANSFORMATION_3D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_TRANSFORMATION_3D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_TRANSFORMATION_3D
 
/** Maps prim::Transformation3D<T> to a Python tuple of four tuples of four elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T>
struct PyExportTraits< prim::Transformation3D<T> >: 
    public impl::PyExportTraitsPrimTransformation< prim::Transformation3D<T>, PyExportTraits< prim::Transformation3D<T> > >
{
    constexpr static const char* py_typing = "_Transformation3D[T]";
    constexpr static const char* py_typing_preamble = "type _Transformation3D[T] = tuple[tuple[T, T, T, T], tuple[T, T, T, T], tuple[T, T, T, T], tuple[T, T, T, T]]";
 
    static const char* className() { return "Transformation3D"; }
};
 
#   endif
#endif
 
 
 
// --- simplepolygons -----------------------------------------------------------------------------
 
#ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_SIMPLE_POLYGON
#define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_SIMPLE_POLYGON
 
 
#endif
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_SIMPLE_POLYGON_2D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_SIMPLE_POLYGON_2D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_SIMPLE_POLYGON_2D
 
/** Maps prim::SimplePolygon2D<T> to a Python sequence of tuples of two elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T, typename DP>
struct PyExportTraits< prim::SimplePolygon2D<T, DP> >:
    public impl::PyExportTraitsPrimSimplePolygon< prim::SimplePolygon2D<T, DP>, PyExportTraits< prim::SimplePolygon2D<T, DP> > >
{
    constexpr static const char* py_typing = "_SimplePolygon2D[T]";
    constexpr static const char* py_typing_preamble =
        "type _Point2D[T] = tuple[T, T]\n"
        "type _SimplePolygon2D[T] = Sequence[_Point2D[T]]";
 
    static const char* className() { return "SimplePolygon2D"; }
};
 
#   endif
#endif
 
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_SIMPLE_POLYGON_3D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_SIMPLE_POLYGON_3D
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_SIMPLE_POLYGON_3D
 
/** Maps prim::SimplePolygon3D<T> to a Python sequence of tuples of three elements of type T.
 *  @ingroup PyExportTraits
 */
template <typename T, typename DP>
struct PyExportTraits< prim::SimplePolygon3D<T, DP> >:
    public impl::PyExportTraitsPrimSimplePolygon< prim::SimplePolygon3D<T, DP>, PyExportTraits< prim::SimplePolygon3D<T, DP> > >
{
    constexpr static const char* py_typing = "_SimplePolygon3D[T]";
    constexpr static const char* py_typing_preamble =
        "type _Point3D[T] = tuple[T, T, T]\n"
        "type _SimplePolygon3D[T] = Sequence[_Point3D[T]]";
 
    static const char* className() { return "SimplePolygon3D"; }
};
 
#   endif
#endif
 
// --- axes ----------------------------------------------------------------------------------------
 
#ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_AXIS
#define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_AXIS
 
 
#endif
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_XY)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_XY
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_XY
 
/** Maps prim::XY to a Python string literal "x" or "y".
 *  @ingroup PyExportTraits
 */
template <>
struct PyExportTraits<prim::XY>:
    public impl::PyExportTraitsPrimAxis<prim::XY, PyExportTraits<prim::XY> >
{
    constexpr static const char* py_typing = "Literal['x', 'X', 'y', 'Y']";
    static const char* className() { return "XY"; }
};
 
#   endif
#endif
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_XYZ)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_XYZ
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_XYZ
 
/** Maps prim::XYZ to a Python string literal "x", "y" or "z".
 *  @ingroup PyExportTraits
 */
template <>
struct PyExportTraits<prim::XYZ>:
    public impl::PyExportTraitsPrimAxis<prim::XYZ, PyExportTraits<prim::XYZ> >
{
    constexpr static const char* py_typing = "Literal['x', 'X', 'y', 'Y', 'z', 'Z']";
    static const char* className() { return "XYZ"; }
};
 
#   endif
#endif
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_XYZW)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_XYZW
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_XYZW
 
/** Maps prim::XYZW to a Python string literal "x", "y", "z" or "w".
 *  @ingroup PyExportTraits
 */
template <>
struct PyExportTraits<prim::XYZW>:
    public impl::PyExportTraitsPrimAxis<prim::XYZW, PyExportTraits<prim::XYZW> >
{
    constexpr static const char* py_typing = "Literal['x', 'X', 'y', 'Y', 'z', 'Z', 'w', 'W']";
    static const char* className() { return "XYZW"; }
};
 
#   endif
#endif
 
// --- ColorRGBA -----------------------------------------------------------------------------------
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_COLOR_RGBA)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_COLOR_RGBA
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_COLOR_RGBA
 
/** Maps prim::ColorRGBA to a Python tuple of four elements of type float.
 *  @ingroup PyExportTraits
 */
template <>
struct PyExportTraits<prim::ColorRGBA>
{
    constexpr static const char* py_typing = "_RGBA";
    constexpr static const char* py_typing_param = "_RGBA | _RGB";
    constexpr static const char* py_typing_preamble = 
        "type _RGBA = tuple[float, float, float, float]\n"
        "type _RGB = tuple[float, float, float]";
 
    static PyObject* build(const prim::ColorRGBA& v)
    {
        return pyBuildSimpleObject(v.vector());
    }
    static int get(PyObject* obj, prim::ColorRGBA& v)
    {
        prim::ColorRGBA x(0, 0, 0, 1);
        if (decodeTupleMinimum(obj, 3, x.r, x.g, x.b, x.a))
        {
            impl::addMessageHeader("ColorRGBA");
            return 1;
        }
        v = x;
        return 0;
    }
};
 
#   endif
#endif
 
// --- IndexTriangle -------------------------------------------------------------------------------
 
#if defined(LASS_PRIM_HAVE_PY_EXPORT_TRAITS_TRIANGLE_MESH_3D)
#   ifndef LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_INDEX_TRIANGLE
#   define LASS_GUARDIAN_OF_INCLUSION_PYTHON_EXPORT_TRAITS_PRIM_H_INDEX_TRIANGLE
 
namespace impl
{
}
 
/** Maps prim::IndexTriangle to a Python tuple of three index vertices.
 * 
 *  An index vertex is a tuple of one, two or three size_t values:
 *  - (vertex,)
 *  - (vertex, normal)
 *  - (vertex, normal, uv)
 *  where 'vertex', 'normal' and 'uv' are indices in the corresponding arrays.
 *  The indices are zero-based.
 *
 *  The 'normal' and 'uv' indices can be None to indicate that no normal or uv is specified.
 *  The vertex index is mandatory.
 *
 *  @ingroup PyExportTraits
 */
template <>
struct PyExportTraits<prim::IndexTriangle>
{
    constexpr static const char* py_typing = "_IndexTriangle";
    constexpr static const char* py_typing_preamble = 
        "type _IndexVertex = tuple[int] | tuple[int, int | None] | tuple[int, int | None, int | None]\n"
        "type _IndexTriangle = tuple[_IndexVertex, _IndexVertex, _IndexVertex]";
 
    static PyObject* build(const prim::IndexTriangle& iTriangle)
    {
        TPyObjPtr triangle(PyTuple_New(3));
        if (!triangle) return 0;
        for (int k = 0; k < 3; ++k)
        {
            PyObject* vertex = impl::buildIndexVertex(
                iTriangle.vertices[k], iTriangle.normals[k], iTriangle.uvs[k]);
            if (!vertex) return 0;
            if (PyTuple_SetItem(triangle.get(), k, vertex) != 0) return 0;
        }
        return fromSharedPtrToNakedCast(triangle);
    }
    static int get(PyObject* obj, prim::IndexTriangle& oTriangle)
    {
        const TPyObjPtr tuple(impl::checkedFastSequence(obj, 3));
        if (!tuple)
        {
            impl::addMessageHeader("IndexTriangle");
            return 1;
        }
        PyObject** objects = PySequence_Fast_ITEMS(tuple.get());
        prim::IndexTriangle result = {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}};
        for (int k = 0; k < 3; ++k)
        {
            if (impl::getIndexVertex(objects[k], result.vertices[k], result.normals[k], result.uvs[k]) != 0)
            {
                std::ostringstream buffer;
                buffer << "IndexTriangle: " << (k + 1) << "th vertex";
                impl::addMessageHeader(buffer.str().c_str());
                return 1;
            }
        }
        oTriangle = result;
        return 0;
    }
};
 
#   endif
#endif
 
}
}
 
// EOF