wedge_colors.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_COLORS_H
#define VCL_CONCEPTS_MESH_COMPONENTS_WEDGE_COLORS_H
 
#include "component.h"
 
#include <vclib/concepts/iterators.h>
#include <vclib/concepts/ranges/range.h>
#include <vclib/concepts/space/color.h>
 
#include <vector>
 
namespace vcl::comp {
 
template<typename T>
concept HasWedgeColors = requires (
    T&&                                                obj,
    typename RemoveRef<T>::WedgeColorType              c,
    std::vector<typename RemoveRef<T>::WedgeColorType> vec) {
    RemoveRef<T>::WEDGE_COLOR_NUMBER;
    typename RemoveRef<T>::WedgeColorType;
    typename RemoveRef<T>::WedgeColorsIterator;
    typename RemoveRef<T>::ConstWedgeColorsIterator;
 
    { obj.wedgeColor(uint()) } -> ColorConcept;
    { obj.wedgeColorMod(int()) } -> ColorConcept;
 
    { obj.wedgeColorBegin() } -> InputIterator<decltype(c)>;
    { obj.wedgeColorEnd() } -> InputIterator<decltype(c)>;
 
    { obj.wedgeColors() } -> InputRange<decltype(c)>;
 
    // non const requirements
    requires IsConst<T> || requires {
        { obj.setWedgeColor(uint(), c) } -> std::same_as<void>;
        { obj.setWedgeColors(vec) } -> std::same_as<void>;
 
        { obj.wedgeColorBegin() } -> OutputIterator<decltype(c)>;
        { obj.wedgeColorEnd() } -> OutputIterator<decltype(c)>;
 
        { obj.wedgeColors() } -> OutputRange<decltype(c)>;
    };
};
 
template<typename T>
concept HasOptionalWedgeColors =
    HasWedgeColors<T> &&
    IsOptionalComponent<typename RemoveRef<T>::WedgeColors>;
 
template<typename T>
concept HasRightNumberOfWedgeColors = T::VERTEX_NUMBER == T::WEDGE_COLOR_NUMBER;
 
template<typename T>
concept SanityCheckWedgeColors =
    !HasWedgeColors<T> || HasRightNumberOfWedgeColors<T>;
 
} // namespace vcl::comp
 
#endif // VCL_CONCEPTS_MESH_COMPONENTS_WEDGE_COLORS_H