wedge_tex_coords.h

/*****************************************************************************
 * VCLib                                                                     *
 * Visual Computing Library                                                  *
 *                                                                           *
 * Copyright(C) 2021-2025                                                    *
 * Visual Computing Lab                                                      *
 * ISTI - Italian National Research Council                                  *
 *                                                                           *
 * All rights reserved.                                                      *
 *                                                                           *
 * This program is free software; you can redistribute it and/or modify      *
 * it under the terms of the Mozilla Public License Version 2.0 as published *
 * by the Mozilla 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              *
 * Mozilla Public License Version 2.0                                        *
 * (https://www.mozilla.org/en-US/MPL/2.0/) for more details.                *
 ****************************************************************************/
 
#ifndef VCL_CONCEPTS_MESH_COMPONENTS_WEDGE_TEX_COORDS_H
#define VCL_CONCEPTS_MESH_COMPONENTS_WEDGE_TEX_COORDS_H
 
#include "component.h"
 
#include <vclib/concepts/const_correctness.h>
#include <vclib/concepts/iterators.h>
#include <vclib/concepts/ranges/range.h>
#include <vclib/concepts/space/tex_coord.h>
 
#include <vector>
 
namespace vcl::comp {
 
template<typename T>
concept HasWedgeTexCoords = requires (
    T&&                                                   obj,
    typename RemoveRef<T>::WedgeTexCoordType              t,
    std::vector<typename RemoveRef<T>::WedgeTexCoordType> vec) {
    RemoveRef<T>::WEDGE_TEX_COORD_NUMBER;
    typename RemoveRef<T>::WedgeTexCoordType;
    typename RemoveRef<T>::WedgeTexCoordsIterator;
    typename RemoveRef<T>::ConstWedgeTexCoordsIterator;
 
    { obj.wedgeTexCoord(uint()) } -> TexCoordConcept;
    { obj.wedgeTexCoordMod(int()) } -> TexCoordConcept;
 
    { obj.textureIndex() } -> std::convertible_to<ushort>;
 
    { obj.wedgeTexCoordBegin() } -> InputIterator<decltype(t)>;
    { obj.wedgeTexCoordEnd() } -> InputIterator<decltype(t)>;
 
    { obj.wedgeTexCoords() } -> InputRange<decltype(t)>;
 
    // non const requirements
    requires IsConst<T> || requires {
        { obj.setWedgeTexCoord(uint(), t) } -> std::same_as<void>;
        { obj.setWedgeTexCoords(vec) } -> std::same_as<void>;
 
        { obj.textureIndex() } -> std::same_as<ushort&>;
 
        { obj.wedgeTexCoordBegin() } -> OutputIterator<decltype(t)>;
        { obj.wedgeTexCoordEnd() } -> OutputIterator<decltype(t)>;
 
        { obj.wedgeTexCoords() } -> OutputRange<decltype(t)>;
    };
};
 
template<typename T>
concept HasOptionalWedgeTexCoords =
    HasWedgeTexCoords<T> &&
    IsOptionalComponent<typename RemoveRef<T>::WedgeTexCoords>;
 
template<typename T>
concept HasRightNumberOfWedgeTexCoords =
    RemoveRef<T>::VERTEX_NUMBER == RemoveRef<T>::WEDGE_TEX_COORD_NUMBER;
 
template<typename T>
concept SanityCheckWedgeTexCoords =
    !HasWedgeTexCoords<T> || HasRightNumberOfWedgeTexCoords<T>;
 
} // namespace vcl::comp
 
#endif // VCL_CONCEPTS_MESH_COMPONENTS_WEDGE_TEX_COORDS_H