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Updates DataSeriesIterator to make an iterator general to SciQlop
Alexandre Leroux -
r639:ec7e67b5ba15
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1 #ifndef SCIQLOP_SQPITERATOR_H
2 #define SCIQLOP_SQPITERATOR_H
3
4 #include "CoreGlobal.h"
5
6 /**
7 * @brief The SqpIterator class represents an iterator used in SciQlop. It defines all operators
8 * needed for a standard forward iterator
9 * @tparam T the type of object handled in iterator
10 * @sa http://www.cplusplus.com/reference/iterator/
11 */
12 template <typename T>
13 class SCIQLOP_CORE_EXPORT SqpIterator {
14 public:
15 using iterator_category = std::forward_iterator_tag;
16 using value_type = const T;
17 using difference_type = std::ptrdiff_t;
18 using pointer = value_type *;
19 using reference = value_type &;
20
21 explicit SqpIterator(T value) : m_CurrentValue{std::move(value)} {}
22
23 virtual ~SqpIterator() noexcept = default;
24 SqpIterator(const SqpIterator &) = default;
25 SqpIterator(SqpIterator &&) = default;
26 SqpIterator &operator=(const SqpIterator &) = default;
27 SqpIterator &operator=(SqpIterator &&) = default;
28
29 SqpIterator &operator++()
30 {
31 m_CurrentValue.next();
32 return *this;
33 }
34
35 SqpIterator &operator--()
36 {
37 m_CurrentValue.prev();
38 return *this;
39 }
40
41 pointer operator->() const { return &m_CurrentValue; }
42 reference operator*() const { return m_CurrentValue; }
43
44 bool operator==(const SqpIterator &other) const
45 {
46 return m_CurrentValue.equals(other.m_CurrentValue);
47 }
48 bool operator!=(const SqpIterator &other) const { return !(*this == other); }
49
50 private:
51 T m_CurrentValue;
52 };
53
54 #endif // SCIQLOP_SQPITERATOR_H
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@@ -1,88 +1,60
1 1 #ifndef SCIQLOP_DATASERIESITERATOR_H
2 2 #define SCIQLOP_DATASERIESITERATOR_H
3 3
4 4 #include "CoreGlobal.h"
5 #include "Data/SqpIterator.h"
5 6
6 7 #include <memory>
7 8
8 9 /**
9 10 * @brief The DataSeriesIteratorValue class represents the current value of a data series iterator.
10 11 * It offers standard access methods for the data in the series (x-axis, values), but it is up to
11 12 * each series to define its own implementation of how to retrieve this data, by implementing the
12 13 * DataSeriesIteratorValue::Impl interface
13 14 *
14 15 * @sa DataSeriesIterator
15 16 */
16 17 class SCIQLOP_CORE_EXPORT DataSeriesIteratorValue {
17 18 public:
18 19 struct Impl {
19 20 virtual ~Impl() noexcept = default;
20 21 virtual std::unique_ptr<Impl> clone() const = 0;
21 22 virtual bool equals(const Impl &other) const = 0;
22 23 virtual void next() = 0;
23 24 virtual void prev() = 0;
24 25 virtual double x() const = 0;
25 26 virtual double value() const = 0;
26 27 virtual double value(int componentIndex) const = 0;
27 28 virtual double minValue() const = 0;
28 29 virtual double maxValue() const = 0;
29 30 };
30 31
31 32 explicit DataSeriesIteratorValue(std::unique_ptr<Impl> impl);
32 33 DataSeriesIteratorValue(const DataSeriesIteratorValue &other);
33 34 DataSeriesIteratorValue(DataSeriesIteratorValue &&other) = default;
34 35 DataSeriesIteratorValue &operator=(DataSeriesIteratorValue other);
35 36
36 37 bool equals(const DataSeriesIteratorValue &other) const;
37 38
38 39 /// Advances to the next value
39 40 void next();
40 41 /// Moves back to the previous value
41 42 void prev();
42 43 /// Gets x-axis data
43 44 double x() const;
44 45 /// Gets value data
45 46 double value() const;
46 47 /// Gets value data depending on an index
47 48 double value(int componentIndex) const;
48 49 /// Gets min of all values data
49 50 double minValue() const;
50 51 /// Gets max of all values data
51 52 double maxValue() const;
52 53
53 54 private:
54 55 std::unique_ptr<Impl> m_Impl;
55 56 };
56 57
57 /**
58 * @brief The DataSeriesIterator class represents an iterator used for data series. It defines all
59 * operators needed for a standard forward iterator
60 * @sa http://www.cplusplus.com/reference/iterator/
61 */
62 class SCIQLOP_CORE_EXPORT DataSeriesIterator {
63 public:
64 using iterator_category = std::forward_iterator_tag;
65 using value_type = const DataSeriesIteratorValue;
66 using difference_type = std::ptrdiff_t;
67 using pointer = value_type *;
68 using reference = value_type &;
69
70 explicit DataSeriesIterator(DataSeriesIteratorValue value);
71 virtual ~DataSeriesIterator() noexcept = default;
72 DataSeriesIterator(const DataSeriesIterator &) = default;
73 DataSeriesIterator(DataSeriesIterator &&) = default;
74 DataSeriesIterator &operator=(const DataSeriesIterator &) = default;
75 DataSeriesIterator &operator=(DataSeriesIterator &&) = default;
76
77 DataSeriesIterator &operator++();
78 DataSeriesIterator &operator--();
79 pointer operator->() const { return &m_CurrentValue; }
80 reference operator*() const { return m_CurrentValue; }
81 bool operator==(const DataSeriesIterator &other) const;
82 bool operator!=(const DataSeriesIterator &other) const;
83
84 private:
85 DataSeriesIteratorValue m_CurrentValue;
86 };
58 using DataSeriesIterator = SqpIterator<DataSeriesIteratorValue>;
87 59
88 60 #endif // SCIQLOP_DATASERIESITERATOR_H
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@@ -1,85 +1,58
1 1 #include "Data/DataSeriesIterator.h"
2 2
3 3 DataSeriesIteratorValue::DataSeriesIteratorValue(
4 4 std::unique_ptr<DataSeriesIteratorValue::Impl> impl)
5 5 : m_Impl{std::move(impl)}
6 6 {
7 7 }
8 8
9 9 DataSeriesIteratorValue::DataSeriesIteratorValue(const DataSeriesIteratorValue &other)
10 10 : m_Impl{other.m_Impl->clone()}
11 11 {
12 12 }
13 13
14 14 DataSeriesIteratorValue &DataSeriesIteratorValue::operator=(DataSeriesIteratorValue other)
15 15 {
16 16 std::swap(m_Impl, other.m_Impl);
17 17 return *this;
18 18 }
19 19
20 20 bool DataSeriesIteratorValue::equals(const DataSeriesIteratorValue &other) const
21 21 {
22 22 return m_Impl->equals(*other.m_Impl);
23 23 }
24 24
25 25 void DataSeriesIteratorValue::next()
26 26 {
27 27 m_Impl->next();
28 28 }
29 29
30 30 void DataSeriesIteratorValue::prev()
31 31 {
32 32 m_Impl->prev();
33 33 }
34 34
35 35 double DataSeriesIteratorValue::x() const
36 36 {
37 37 return m_Impl->x();
38 38 }
39 39
40 40 double DataSeriesIteratorValue::value() const
41 41 {
42 42 return m_Impl->value();
43 43 }
44 44
45 45 double DataSeriesIteratorValue::value(int componentIndex) const
46 46 {
47 47 return m_Impl->value(componentIndex);
48 48 }
49 49
50 50 double DataSeriesIteratorValue::minValue() const
51 51 {
52 52 return m_Impl->minValue();
53 53 }
54 54
55 55 double DataSeriesIteratorValue::maxValue() const
56 56 {
57 57 return m_Impl->maxValue();
58 58 }
59
60 DataSeriesIterator::DataSeriesIterator(DataSeriesIteratorValue value)
61 : m_CurrentValue{std::move(value)}
62 {
63 }
64
65 DataSeriesIterator &DataSeriesIterator::operator++()
66 {
67 m_CurrentValue.next();
68 return *this;
69 }
70
71 DataSeriesIterator &DataSeriesIterator::operator--()
72 {
73 m_CurrentValue.prev();
74 return *this;
75 }
76
77 bool DataSeriesIterator::operator==(const DataSeriesIterator &other) const
78 {
79 return m_CurrentValue.equals(other.m_CurrentValue);
80 }
81
82 bool DataSeriesIterator::operator!=(const DataSeriesIterator &other) const
83 {
84 return !(*this == other);
85 }
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