edge_container.h

/*****************************************************************************
 * VCLib                                                                     *
 * Visual Computing Library                                                  *
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 * Copyright(C) 2021-2025                                                    *
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 * ISTI - Italian National Research Council                                  *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the              *
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 ****************************************************************************/
 
#ifndef VCL_CONCEPTS_MESH_CONTAINERS_EDGE_CONTAINER_H
#define VCL_CONCEPTS_MESH_CONTAINERS_EDGE_CONTAINER_H
 
#include <vclib/concepts/const_correctness.h>
#include <vclib/concepts/iterators.h>
#include <vclib/concepts/ranges/range.h>
 
#include <vector>
 
namespace vcl {
namespace mesh {
 
template<typename T>
concept HasEdgeContainer = requires (
    T&&                                          obj,
    typename RemoveRef<T>::EdgeType              e,
    typename RemoveRef<T>::EdgeType*             eP,
    typename RemoveRef<T>::EdgeType&             eR,
    typename RemoveRef<T>::EdgeType::VertexType* vP,
    std::vector<uint>                            vec) {
    typename RemoveRef<T>::EdgeType;
    typename RemoveRef<T>::EdgeIterator;
    typename RemoveRef<T>::ConstEdgeIterator;
 
    { obj.edge(uint()) } -> std::convertible_to<decltype(e)>;
    { obj.edgeNumber() } -> std::same_as<uint>;
    { obj.edgeContainerSize() } -> std::same_as<uint>;
    { obj.deletedEdgeNumber() } -> std::same_as<uint>;
 
    { obj.edgeIndexIfCompact(uint()) } -> std::same_as<uint>;
    { obj.edgeCompactIndices() } -> std::same_as<decltype(vec)>;
 
    { obj.edgeBegin() } -> InputIterator<decltype(e)>;
    { obj.edgeEnd() } -> InputIterator<decltype(e)>;
    { obj.edges() } -> InputRange<decltype(e)>;
    { obj.edges(bool()) } -> InputRange<decltype(e)>;
 
    // non const requirements
    requires IsConst<T> || requires {
        { obj.edge(uint()) } -> std::same_as<decltype(eR)>;
 
        { obj.addEdge() } -> std::same_as<uint>;
        { obj.addEdge(uint(), uint()) } -> std::same_as<uint>;
        { obj.addEdge(vP, vP) } -> std::same_as<uint>;
        { obj.addEdges(uint()) } -> std::same_as<uint>;
        { obj.clearEdges() } -> std::same_as<void>;
        { obj.resizeEdges(uint()) } -> std::same_as<void>;
        { obj.reserveEdges(uint()) } -> std::same_as<void>;
        { obj.compactEdges() } -> std::same_as<void>;
        { obj.deleteEdge(uint()) } -> std::same_as<void>;
        { obj.deleteEdge(eP) } -> std::same_as<void>;
        { obj.updateEdgeIndices(vec) } -> std::same_as<void>;
 
        { obj.edgeBegin() } -> OutputIterator<decltype(e)>;
        { obj.edgeEnd() } -> OutputIterator<decltype(e)>;
 
        { obj.edges() } -> OutputRange<decltype(e)>;
        { obj.edges(bool()) } -> OutputRange<decltype(e)>;
 
        { obj.enableAllPerEdgeOptionalComponents() } -> std::same_as<void>;
        { obj.disableAllPerEdgeOptionalComponents() } -> std::same_as<void>;
    };
};
 
} // namespace mesh
 
template<typename... Args>
concept HasEdges = (mesh::HasEdgeContainer<Args> || ...);
 
} // namespace vcl
 
#endif // VCL_CONCEPTS_MESH_CONTAINERS_EDGE_CONTAINER_H