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#ifndef SCIQLOP_QCPCOLORMAPITERATOR_H
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#define SCIQLOP_QCPCOLORMAPITERATOR_H
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#include <iterator>
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class QCPColorMapData;
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/**
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* Forward iterator for @sa QCPColorMap
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*/
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class QCPColorMapIterator {
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public:
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using iterator_category = std::forward_iterator_tag;
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using value_type = double;
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using difference_type = std::ptrdiff_t;
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using pointer = const value_type *;
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using reference = value_type;
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explicit QCPColorMapIterator(QCPColorMapData *data, bool begin);
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virtual ~QCPColorMapIterator() noexcept = default;
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QCPColorMapIterator &operator++();
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QCPColorMapIterator operator++(int);
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pointer operator->() const;
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reference operator*() const;
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bool operator==(const QCPColorMapIterator &other);
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bool operator!=(const QCPColorMapIterator &other);
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private:
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void updateValue();
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QCPColorMapData *m_Data; ///< Data iterated
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int m_KeyIndex; ///< Current iteration key index
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int m_ValueIndex; ///< Current iteration value index
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double m_Value; ///< Current iteration value
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};
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#endif // SCIQLOP_QCPCOLORMAPITERATOR_H
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