TypedElementRowHandleArray.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "DataStorage/Handles.h"
#include "Containers/ContainersFwd.h"
#include "Elements/Framework/TypedElementRowHandleArrayView.h"
 
namespace UE::Editor::DataStorage
{
    class FRowHandleArray
    {
    public:
        using EFlags = FRowHandleArrayView::EFlags;
 
        FRowHandleArray() = default;
        TYPEDELEMENTFRAMEWORK_API explicit FRowHandleArray(FRowHandleArrayView InRows);
 
        TYPEDELEMENTFRAMEWORK_API int32 Num() const;
 
        TYPEDELEMENTFRAMEWORK_API void Reserve(int32 Count);
 
        TYPEDELEMENTFRAMEWORK_API void Shrink();
 
        TYPEDELEMENTFRAMEWORK_API void Add(RowHandle Row, EFlags Guarantee = EFlags::None);
 
        TYPEDELEMENTFRAMEWORK_API void Append(TConstArrayView<RowHandle> AdditionalRows, EFlags Guarantee = EFlags::None);
 
        TYPEDELEMENTFRAMEWORK_API void Append(FRowHandleArrayView AdditionalRows);
        
        TYPEDELEMENTFRAMEWORK_API void Remove(RowHandle Row);
        TYPEDELEMENTFRAMEWORK_API void Remove(TConstArrayView<RowHandle> RowsToRemove);
        TYPEDELEMENTFRAMEWORK_API void Remove(FRowHandleArrayView RowsToRemove);
 
        TYPEDELEMENTFRAMEWORK_API bool Contains(RowHandle Row) const;
 
        TYPEDELEMENTFRAMEWORK_API void Reset(int32 NewSize = 0);
 
        TYPEDELEMENTFRAMEWORK_API void Empty(int32 Slack = 0);
 
        TYPEDELEMENTFRAMEWORK_API void Sort();
        TYPEDELEMENTFRAMEWORK_API void Sort(TArrayView<RowHandle> ScratchBuffer);
 
        TYPEDELEMENTFRAMEWORK_API void MakeUnique();
        TYPEDELEMENTFRAMEWORK_API void ReduceToDuplicates();
 
        TYPEDELEMENTFRAMEWORK_API void SortedMerge(FRowHandleArrayView AddedRows);
        TYPEDELEMENTFRAMEWORK_API void SortedMerge(const FRowHandleArray& AddedRows);
        TYPEDELEMENTFRAMEWORK_API void SortedMerge(FRowHandleArray&& AddedRows);
 
        TYPEDELEMENTFRAMEWORK_API void InvertOrder();
 
        TYPEDELEMENTFRAMEWORK_API FRowHandleArrayView GetRows() const;
        TYPEDELEMENTFRAMEWORK_API TArrayView<RowHandle> GetMutableRows(EFlags Guarantee = EFlags::None);
        TYPEDELEMENTFRAMEWORK_API bool IsSorted() const;
        TYPEDELEMENTFRAMEWORK_API bool IsUnique() const;
        TYPEDELEMENTFRAMEWORK_API bool IsEmpty() const;
        TYPEDELEMENTFRAMEWORK_API bool IsSame(const FRowHandleArray& Other) const;
 
    private:
        void SortedMergeInternal(FRowHandleArrayView AddedRows);
        int32 Find(RowHandle Row) const;
 
        TArray<RowHandle> Rows;
        bool bIsSorted = true;
        bool bIsUnique = true;
    };
} // namespace UE::Editor::DataStorage