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#ifndef SCIQLOP_ARRAYDATAITERATOR_H
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#define SCIQLOP_ARRAYDATAITERATOR_H
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#include "CoreGlobal.h"
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#include "Data/SqpIterator.h"
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#include <QVector>
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#include <memory>
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/**
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* @brief The ArrayDataIteratorValue class represents the current value of an array data iterator.
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* It offers standard access methods for the data in the series (at(), first()), but it is up to
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* each array data to define its own implementation of how to retrieve this data (one-dim or two-dim
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* array), by implementing the ArrayDataIteratorValue::Impl interface
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* @sa ArrayDataIterator
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*/
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class SCIQLOP_CORE_EXPORT ArrayDataIteratorValue {
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public:
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struct Impl {
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virtual ~Impl() noexcept = default;
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virtual std::unique_ptr<Impl> clone() const = 0;
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virtual int distance(const Impl &other) const = 0;
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virtual bool equals(const Impl &other) const = 0;
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virtual bool lowerThan(const Impl &other) const = 0;
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virtual std::unique_ptr<Impl> advance(int offset) const = 0;
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virtual void next(int offset) = 0;
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virtual void prev() = 0;
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virtual double at(int componentIndex) const = 0;
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virtual double first() const = 0;
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virtual double min() const = 0;
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virtual double max() const = 0;
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virtual QVector<double> values() const = 0;
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virtual void swap(Impl &other) = 0;
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};
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explicit ArrayDataIteratorValue(std::unique_ptr<Impl> impl);
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ArrayDataIteratorValue(const ArrayDataIteratorValue &other);
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ArrayDataIteratorValue &operator=(ArrayDataIteratorValue other);
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int distance(const ArrayDataIteratorValue &other) const;
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bool equals(const ArrayDataIteratorValue &other) const;
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bool lowerThan(const ArrayDataIteratorValue &other) const;
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ArrayDataIteratorValue advance(int offset) const;
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/// Advances to the next value
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void next(int offset = 1);
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/// Moves back to the previous value
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void prev();
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/// Gets value of a specified component
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double at(int componentIndex) const;
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/// Gets value of first component
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double first() const;
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/// Gets min value among all components
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double min() const;
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/// Gets max value among all components
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double max() const;
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/// Gets all values
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QVector<double> values() const;
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Impl *impl();
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friend void swap(ArrayDataIteratorValue &lhs, ArrayDataIteratorValue &rhs)
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{
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std::swap(lhs.m_Impl, rhs.m_Impl);
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}
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private:
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std::unique_ptr<Impl> m_Impl;
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};
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using ArrayDataIterator = SqpIterator<ArrayDataIteratorValue>;
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#endif // SCIQLOP_ARRAYDATAITERATOR_H
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