GIT_REPOSITORIES/LPP/Users/mperrinel/SciQLop-fork Commit - r909:c6a1fc96dbd2

Merge branch 'feature/MockSpectrogram2' into develop

Alexandre Leroux -

r909:c6a1fc96dbd2

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r909:c6a1fc96dbd2

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core/include/Data/DataSeries.h +4 -3

             #ifndef SCIQLOP_DATASERIES_H
             #define SCIQLOP_DATASERIES_H
             #include "CoreGlobal.h"
             #include <Common/SortUtils.h>
             #include <Data/ArrayData.h>
             #include <Data/DataSeriesMergeHelper.h>
             #include <Data/IDataSeries.h>
             #include <Data/OptionalAxis.h>
             #include <QLoggingCategory>
             #include <QReadLocker>
             #include <QReadWriteLock>
             #include <memory>
             // We don't use the Qt macro since the log is used in the header file, which causes multiple log
             // definitions with inheritance. Inline method is used instead
             inline const QLoggingCategory &LOG_DataSeries()
             {
                 static const QLoggingCategory category{"DataSeries"};
                 return category;
             }
             template <int Dim>
             class DataSeries;
             namespace dataseries_detail {
             template <int Dim, bool IsConst>
             class IteratorValue : public DataSeriesIteratorValue::Impl {
             public:
                 friend class DataSeries<Dim>;
                 template <bool IC = IsConst, typename = std::enable_if_t<IC == false> >
                 explicit IteratorValue(DataSeries<Dim> &dataSeries, bool begin)
                         : m_XIt(begin ? dataSeries.xAxisData()->begin() : dataSeries.xAxisData()->end()),
                           m_ValuesIt(begin ? dataSeries.valuesData()->begin() : dataSeries.valuesData()->end())
                 {
                 }
                 template <bool IC = IsConst, typename = std::enable_if_t<IC == true> >
                 explicit IteratorValue(const DataSeries<Dim> &dataSeries, bool begin)
                         : m_XIt(begin ? dataSeries.xAxisData()->cbegin() : dataSeries.xAxisData()->cend()),
                           m_ValuesIt(begin ? dataSeries.valuesData()->cbegin()
                                            : dataSeries.valuesData()->cend())
                 {
                 }
                 IteratorValue(const IteratorValue &other) = default;
                 std::unique_ptr<DataSeriesIteratorValue::Impl> clone() const override
                 {
                     return std::make_unique<IteratorValue<Dim, IsConst> >(*this);
                 }
                 int distance(const DataSeriesIteratorValue::Impl &other) const override try {
                     const auto &otherImpl = dynamic_cast<const IteratorValue &>(other);
                     return m_XIt->distance(*otherImpl.m_XIt);
                 }
                 catch (const std::bad_cast &) {
                     return 0;
                 }
                 bool equals(const DataSeriesIteratorValue::Impl &other) const override try {
                     const auto &otherImpl = dynamic_cast<const IteratorValue &>(other);
                     return std::tie(m_XIt, m_ValuesIt) == std::tie(otherImpl.m_XIt, otherImpl.m_ValuesIt);
                 }
                 catch (const std::bad_cast &) {
                     return false;
                 }
                 bool lowerThan(const DataSeriesIteratorValue::Impl &other) const override try {
                     const auto &otherImpl = dynamic_cast<const IteratorValue &>(other);
                     return m_XIt->lowerThan(*otherImpl.m_XIt);
                 }
                 catch (const std::bad_cast &) {
                     return false;
                 }
                 std::unique_ptr<DataSeriesIteratorValue::Impl> advance(int offset) const override
                 {
                     auto result = clone();
                     result->next(offset);
                     return result;
                 }
                 void next(int offset) override
                 {
                     m_XIt->next(offset);
                     m_ValuesIt->next(offset);
                 }
                 void prev() override
                 {
                     --m_XIt;
                     --m_ValuesIt;
                 }
                 double x() const override { return m_XIt->at(0); }
                 double value() const override { return m_ValuesIt->at(0); }
                 double value(int componentIndex) const override { return m_ValuesIt->at(componentIndex); }
                 double minValue() const override { return m_ValuesIt->min(); }
                 double maxValue() const override { return m_ValuesIt->max(); }
                 QVector<double> values() const override { return m_ValuesIt->values(); }
                 void swap(DataSeriesIteratorValue::Impl &other) override
                 {
                     auto &otherImpl = dynamic_cast<IteratorValue &>(other);
                     m_XIt->impl()->swap(*otherImpl.m_XIt->impl());
                     m_ValuesIt->impl()->swap(*otherImpl.m_ValuesIt->impl());
                 }
             private:
                 ArrayDataIterator m_XIt;
                 ArrayDataIterator m_ValuesIt;
             };
             } // namespace dataseries_detail
             /**
              * @brief The DataSeries class is the base (abstract) implementation of IDataSeries.
              *
              * The DataSeries represents values on one or two axes, according to these rules:
              * - the x-axis is always defined
              * - an y-axis can be defined or not. If set, additional consistency checks apply to the values (see
              * below)
              * - the values are defined on one or two dimensions. In the case of 2-dim values, the data is
              * distributed into components (for example, a vector defines three components)
              * - New values can be added to the series, on the x-axis.
              * - Once initialized to the series creation, the y-axis (if defined) is no longer modifiable
              * - Data representing values and axes are associated with a unit
              * - The data series is always sorted in ascending order on the x-axis.
              *
              * Consistency checks are carried out between the axes and the values. These controls are provided
              * throughout the DataSeries lifecycle:
              * - the number of data on the x-axis must be equal to the number of values (in the case of
              * 2-dim ArrayData for values, the test is performed on the number of values per component)
              * - if the y-axis is defined, the number of components of the ArrayData for values must equal the
              * number of data on the y-axis.
              *
              * Examples:
              * 1)
              * - x-axis: [1 ; 2 ; 3]
              * - y-axis: not defined
              * - values: [10 ; 20 ; 30] (1-dim ArrayData)
              * => the DataSeries is valid, as x-axis and values have the same number of data
              *
              * 2)
              * - x-axis: [1 ; 2 ; 3]
              * - y-axis: not defined
              * - values: [10 ; 20 ; 30 ; 40] (1-dim ArrayData)
              * => the DataSeries is invalid, as x-axis and values haven't the same number of data
              *
              * 3)
              * - x-axis: [1 ; 2 ; 3]
              * - y-axis: not defined
              * - values: [10 ; 20 ; 30
              *            40 ; 50 ; 60] (2-dim ArrayData)
              * => the DataSeries is valid, as x-axis has 3 data and values contains 2 components with 3
              * data each
              *
              * 4)
              * - x-axis: [1 ; 2 ; 3]
              * - y-axis: [1 ; 2]
              * - values: [10 ; 20 ; 30
              *            40 ; 50 ; 60] (2-dim ArrayData)
              * => the DataSeries is valid, as:
              * - x-axis has 3 data and values contains 2 components with 3 data each AND
              * - y-axis has 2 data and values contains 2 components
              *
              * 5)
              * - x-axis: [1 ; 2 ; 3]
              * - y-axis: [1 ; 2 ; 3]
              * - values: [10 ; 20 ; 30
              *            40 ; 50 ; 60] (2-dim ArrayData)
              * => the DataSeries is invalid, as:
              * - x-axis has 3 data and values contains 2 components with 3 data each BUT
              * - y-axis has 3 data and values contains only 2 components
              *
              * @tparam Dim The dimension of the values data
              *
              */
             template <int Dim>
             class SCIQLOP_CORE_EXPORT DataSeries : public IDataSeries {
                 friend class DataSeriesMergeHelper;
             public:
                 /// @sa IDataSeries::xAxisData()
                 std::shared_ptr<ArrayData<1> > xAxisData() override { return m_XAxisData; }
                 const std::shared_ptr<ArrayData<1> > xAxisData() const { return m_XAxisData; }
                 /// @sa IDataSeries::xAxisUnit()
                 Unit xAxisUnit() const override { return m_XAxisUnit; }
                 /// @return the values dataset
                 std::shared_ptr<ArrayData<Dim> > valuesData() { return m_ValuesData; }
                 const std::shared_ptr<ArrayData<Dim> > valuesData() const { return m_ValuesData; }
                 /// @sa IDataSeries::valuesUnit()
                 Unit valuesUnit() const override { return m_ValuesUnit; }
                 int nbPoints() const override { return m_ValuesData->totalSize(); }
                 void clear()
                 {
                     m_XAxisData->clear();
                     m_ValuesData->clear();
                 }
                 bool isEmpty() const noexcept { return m_XAxisData->size() == 0; }
                 /// Merges into the data series an other data series.
                 ///
                 /// The two dataseries:
                 /// - must be of the same dimension
                 /// - must have the same y-axis (if defined)
                 ///
                 /// If the prerequisites are not valid, the method does nothing
                 ///
                 /// @remarks the data series to merge with is cleared after the operation
                 void merge(IDataSeries *dataSeries) override
                 {
                     dataSeries->lockWrite();
                     lockWrite();
                     if (auto other = dynamic_cast<DataSeries<Dim> *>(dataSeries)) {
                         if (m_YAxis == other->m_YAxis) {
                             DataSeriesMergeHelper::merge(*other, *this);
                         }
                         else {
                             qCWarning(LOG_DataSeries())
                                 << QObject::tr("Can't merge data series that have not the same y-axis");
                         }
                     }
                     else {
                         qCWarning(LOG_DataSeries())
                             << QObject::tr("Detection of a type of IDataSeries we cannot merge with !");
                     }
                     unlock();
                     dataSeries->unlock();
                 }
                 void purge(double min, double max) override
                 {
                     // Nothing to purge if series is empty
                     if (isEmpty()) {
                         return;
                     }
                     if (min > max) {
                         std::swap(min, max);
                     }
                     // Nothing to purge if series min/max are inside purge range
                     auto xMin = cbegin()->x();
                     auto xMax = (--cend())->x();
                     if (xMin >= min && xMax <= max) {
                         return;
                     }
                     auto lowerIt = std::lower_bound(
                         begin(), end(), min, [](const auto &it, const auto &val) { return it.x() < val; });
                     erase(begin(), lowerIt);
                     auto upperIt = std::upper_bound(
                         begin(), end(), max, [](const auto &val, const auto &it) { return val < it.x(); });
                     erase(upperIt, end());
                 }
                 // ///////// //
                 // Iterators //
                 // ///////// //
                 DataSeriesIterator begin() override
                 {
                     return DataSeriesIterator{DataSeriesIteratorValue{
                         std::make_unique<dataseries_detail::IteratorValue<Dim, false> >(*this, true)}};
                 }
                 DataSeriesIterator end() override
                 {
                     return DataSeriesIterator{DataSeriesIteratorValue{
                         std::make_unique<dataseries_detail::IteratorValue<Dim, false> >(*this, false)}};
                 }
                 DataSeriesIterator cbegin() const override
                 {
                     return DataSeriesIterator{DataSeriesIteratorValue{
                         std::make_unique<dataseries_detail::IteratorValue<Dim, true> >(*this, true)}};
                 }
                 DataSeriesIterator cend() const override
                 {
                     return DataSeriesIterator{DataSeriesIteratorValue{
                         std::make_unique<dataseries_detail::IteratorValue<Dim, true> >(*this, false)}};
                 }
                 void erase(DataSeriesIterator first, DataSeriesIterator last)
                 {
                     auto firstImpl
                         = dynamic_cast<dataseries_detail::IteratorValue<Dim, false> *>(first->impl());
                     auto lastImpl = dynamic_cast<dataseries_detail::IteratorValue<Dim, false> *>(last->impl());
                     if (firstImpl && lastImpl) {
                         m_XAxisData->erase(firstImpl->m_XIt, lastImpl->m_XIt);
                         m_ValuesData->erase(firstImpl->m_ValuesIt, lastImpl->m_ValuesIt);
                     }
                 }
                 void insert(DataSeriesIterator first, DataSeriesIterator last, bool prepend = false)
                 {
                     auto firstImpl = dynamic_cast<dataseries_detail::IteratorValue<Dim, true> *>(first->impl());
                     auto lastImpl = dynamic_cast<dataseries_detail::IteratorValue<Dim, true> *>(last->impl());
                     if (firstImpl && lastImpl) {
                         m_XAxisData->insert(firstImpl->m_XIt, lastImpl->m_XIt, prepend);
                         m_ValuesData->insert(firstImpl->m_ValuesIt, lastImpl->m_ValuesIt, prepend);
                     }
                 }
                 /// @sa IDataSeries::minXAxisData()
                 DataSeriesIterator minXAxisData(double minXAxisData) const override
                 {
                     return std::lower_bound(
                         cbegin(), cend(), minXAxisData,
                         [](const auto &itValue, const auto &value) { return itValue.x() < value; });
                 }
                 /// @sa IDataSeries::maxXAxisData()
                 DataSeriesIterator maxXAxisData(double maxXAxisData) const override
                 {
                     // Gets the first element that greater than max value
                     auto it = std::upper_bound(
                         cbegin(), cend(), maxXAxisData,
                         [](const auto &value, const auto &itValue) { return value < itValue.x(); });
                     return it == cbegin() ? cend() : --it;
                 }
                 std::pair<DataSeriesIterator, DataSeriesIterator> xAxisRange(double minXAxisData,
                                                                              double maxXAxisData) const override
                 {
                     if (minXAxisData > maxXAxisData) {
                         std::swap(minXAxisData, maxXAxisData);
                     }
                     auto begin = cbegin();
                     auto end = cend();
                     auto lowerIt = std::lower_bound(
                         begin, end, minXAxisData,
                         [](const auto &itValue, const auto &value) { return itValue.x() < value; });
                     auto upperIt = std::upper_bound(
                         lowerIt, end, maxXAxisData,
                         [](const auto &value, const auto &itValue) { return value < itValue.x(); });
                     return std::make_pair(lowerIt, upperIt);
                 }
                 std::pair<DataSeriesIterator, DataSeriesIterator>
                 valuesBounds(double minXAxisData, double maxXAxisData) const override
                 {
                     // Places iterators to the correct x-axis range
                     auto xAxisRangeIts = xAxisRange(minXAxisData, maxXAxisData);
                     // Returns end iterators if the range is empty
                     if (xAxisRangeIts.first == xAxisRangeIts.second) {
                         return std::make_pair(cend(), cend());
                     }
                     // Gets the iterator on the min of all values data
                     auto minIt = std::min_element(
                         xAxisRangeIts.first, xAxisRangeIts.second, [](const auto &it1, const auto &it2) {
                             return SortUtils::minCompareWithNaN(it1.minValue(), it2.minValue());
                         });
                     // Gets the iterator on the max of all values data
                     auto maxIt = std::max_element(
                         xAxisRangeIts.first, xAxisRangeIts.second, [](const auto &it1, const auto &it2) {
                             return SortUtils::maxCompareWithNaN(it1.maxValue(), it2.maxValue());
                         });
                     return std::make_pair(minIt, maxIt);
                 }
+                /// @return the y-axis associated to the data series
+                /// @todo pass getter as protected and use iterators to access the y-axis data
+                OptionalAxis yAxis() const { return m_YAxis; }
                 // /////// //
                 // Mutexes //
                 // /////// //
                 virtual void lockRead() { m_Lock.lockForRead(); }
                 virtual void lockWrite() { m_Lock.lockForWrite(); }
                 virtual void unlock() { m_Lock.unlock(); }
             protected:
                 /// Protected ctor (DataSeries is abstract).
                 ///
                 /// Data vectors must be consistent with each other, otherwise an exception will be thrown (@sa
                 /// class description for consistent rules)
                 /// @remarks data series is automatically sorted on its x-axis data
                 /// @throws std::invalid_argument if the data are inconsistent with each other
                 explicit DataSeries(std::shared_ptr<ArrayData<1> > xAxisData, const Unit &xAxisUnit,
                                     std::shared_ptr<ArrayData<Dim> > valuesData, const Unit &valuesUnit,
                                     OptionalAxis yAxis = OptionalAxis{})
                         : m_XAxisData{xAxisData},
                           m_XAxisUnit{xAxisUnit},
                           m_ValuesData{valuesData},
                           m_ValuesUnit{valuesUnit},
                           m_YAxis{std::move(yAxis)}
                 {
                     if (m_XAxisData->size() != m_ValuesData->size()) {
                         throw std::invalid_argument{
                             "The number of values by component must be equal to the number of x-axis data"};
                     }
                     // Validates y-axis (if defined)
                     if (yAxis.isDefined() && (yAxis.size() != m_ValuesData->componentCount())) {
                         throw std::invalid_argument{
                             "As the y-axis is defined, the number of value components must be equal to the "
                             "number of y-axis data"};
                     }
                     // Sorts data if it's not the case
                     const auto &xAxisCData = m_XAxisData->cdata();
                     if (!std::is_sorted(xAxisCData.cbegin(), xAxisCData.cend())) {
                         sort();
                     }
                 }
                 /// Copy ctor
                 explicit DataSeries(const DataSeries<Dim> &other)
                         : m_XAxisData{std::make_shared<ArrayData<1> >(*other.m_XAxisData)},
                           m_XAxisUnit{other.m_XAxisUnit},
                           m_ValuesData{std::make_shared<ArrayData<Dim> >(*other.m_ValuesData)},
                           m_ValuesUnit{other.m_ValuesUnit},
                           m_YAxis{other.m_YAxis}
                 {
                     // Since a series is ordered from its construction and is always ordered, it is not
                     // necessary to call the sort method here ('other' is sorted)
                 }
-                /// @return the y-axis associated to the data series
-                OptionalAxis yAxis() const { return m_YAxis; }
                 /// Assignment operator
                 template <int D>
                 DataSeries &operator=(DataSeries<D> other)
                 {
                     std::swap(m_XAxisData, other.m_XAxisData);
                     std::swap(m_XAxisUnit, other.m_XAxisUnit);
                     std::swap(m_ValuesData, other.m_ValuesData);
                     std::swap(m_ValuesUnit, other.m_ValuesUnit);
                     std::swap(m_YAxis, other.m_YAxis);
                     return *this;
                 }
             private:
                 /**
                  * Sorts data series on its x-axis data
                  */
                 void sort() noexcept
                 {
                     auto permutation = SortUtils::sortPermutation(*m_XAxisData, std::less<double>());
                     m_XAxisData = m_XAxisData->sort(permutation);
                     m_ValuesData = m_ValuesData->sort(permutation);
                 }
                 // x-axis
                 std::shared_ptr<ArrayData<1> > m_XAxisData;
                 Unit m_XAxisUnit;
                 // values
                 std::shared_ptr<ArrayData<Dim> > m_ValuesData;
                 Unit m_ValuesUnit;
                 // y-axis (optional)
                 OptionalAxis m_YAxis;
                 QReadWriteLock m_Lock;
             };
             #endif // SCIQLOP_DATASERIES_H

core/include/Data/OptionalAxis.h +4 0

             #ifndef SCIQLOP_OPTIONALAXIS_H
             #define SCIQLOP_OPTIONALAXIS_H
             #include "CoreGlobal.h"
             #include "Unit.h"
             #include <memory>
             template <int Dim>
             class ArrayData;
             /**
              * @brief The OptionalAxis class defines an optional data axis for a series of data.
              *
              * An optional data axis is an axis that can be defined or not for a data series. If defined, it
              * contains a unit and data (1-dim ArrayData). It is then possible to access the data or the unit.
              * In the case of an undefined axis, the axis has no data and no unit. The methods for accessing the
              * data or the unit are always callable but will return undefined values.
              *
              * @sa DataSeries
              * @sa ArrayData
              */
             class SCIQLOP_CORE_EXPORT OptionalAxis {
             public:
                 /// Ctor for an undefined axis
                 explicit OptionalAxis();
                 /// Ctor for a defined axis
                 /// @param data the axis' data
                 /// @param unit the axis' unit
                 /// @throws std::invalid_argument if no data is associated to the axis
                 explicit OptionalAxis(std::shared_ptr<ArrayData<1> > data, Unit unit);
                 /// Copy ctor
                 OptionalAxis(const OptionalAxis &other);
                 /// Assignment operator
                 OptionalAxis &operator=(OptionalAxis other);
                 /// @return the flag that indicates if the axis is defined or not
                 bool isDefined() const;
                 /// @return gets the data at the index passed in parameter, NaN if the index is outside the
                 /// bounds of the axis, or if the axis is undefined
                 double at(int index) const;
+                ///@return the min and max values of the data on the axis, NaN values if there is no data
+                std::pair<double, double> bounds() const;
                 /// @return the number of data on the axis, 0 if the axis is not defined
                 int size() const;
                 /// @return the unit of the axis, an empty unit if the axis is not defined
                 Unit unit() const;
                 bool operator==(const OptionalAxis &other);
                 bool operator!=(const OptionalAxis &other);
             private:
                 bool m_Defined;                        ///< Axis is defined or not
                 std::shared_ptr<ArrayData<1> > m_Data; ///< Axis' data
                 Unit m_Unit;                           ///< Axis' unit
             };
             #endif // SCIQLOP_OPTIONALAXIS_H

core/src/Data/OptionalAxis.cpp +25 0

             #include <Data/OptionalAxis.h>
             #include "Data/ArrayData.h"
             OptionalAxis::OptionalAxis() : m_Defined{false}, m_Data{nullptr}, m_Unit{}
             {
             }
             OptionalAxis::OptionalAxis(std::shared_ptr<ArrayData<1> > data, Unit unit)
                     : m_Defined{true}, m_Data{data}, m_Unit{std::move(unit)}
             {
                 if (m_Data == nullptr) {
                     throw std::invalid_argument{"Data can't be null for a defined axis"};
                 }
             }
             OptionalAxis::OptionalAxis(const OptionalAxis &other)
                     : m_Defined{other.m_Defined},
                       m_Data{other.m_Data ? std::make_shared<ArrayData<1> >(*other.m_Data) : nullptr},
                       m_Unit{other.m_Unit}
             {
             }
             OptionalAxis &OptionalAxis::operator=(OptionalAxis other)
             {
                 std::swap(m_Defined, other.m_Defined);
                 std::swap(m_Data, other.m_Data);
                 std::swap(m_Unit, other.m_Unit);
             }
             bool OptionalAxis::isDefined() const
             {
                 return m_Defined;
             }
             double OptionalAxis::at(int index) const
             {
                 if (m_Defined) {
                     return (index >= 0 && index < m_Data->size()) ? m_Data->at(index)
                                                                   : std::numeric_limits<double>::quiet_NaN();
                 }
                 else {
                     return std::numeric_limits<double>::quiet_NaN();
                 }
             }
+            std::pair<double, double> OptionalAxis::bounds() const
+            {
+                if (!m_Defined || m_Data->size() == 0) {
+                    return std::make_pair(std::numeric_limits<double>::quiet_NaN(),
+                                          std::numeric_limits<double>::quiet_NaN());
+                }
+                else {
+                    auto minIt = std::min_element(
+                        m_Data->cbegin(), m_Data->cend(), [](const auto &it1, const auto &it2) {
+                            return SortUtils::minCompareWithNaN(it1.first(), it2.first());
+                        });
+                    // Gets the iterator on the max of all values data
+                    auto maxIt = std::max_element(
+                        m_Data->cbegin(), m_Data->cend(), [](const auto &it1, const auto &it2) {
+                            return SortUtils::maxCompareWithNaN(it1.first(), it2.first());
+                        });
+                    auto pair = std::make_pair(minIt->first(), maxIt->first());
+                    return std::make_pair(minIt->first(), maxIt->first());
+                }
+            }
             int OptionalAxis::size() const
             {
                 return m_Defined ? m_Data->size() : 0;
             }
             Unit OptionalAxis::unit() const
             {
                 return m_Defined ? m_Unit : Unit{};
             }
             bool OptionalAxis::operator==(const OptionalAxis &other)
             {
                 // Axis not defined
                 if (!m_Defined) {
                     return !other.m_Defined;
                 }
                 // Axis defined
                 return m_Unit == other.m_Unit
                        && std::equal(
                               m_Data->cbegin(), m_Data->cend(), other.m_Data->cbegin(), other.m_Data->cend(),
                               [](const auto &it1, const auto &it2) { return it1.values() == it2.values(); });
             }
             bool OptionalAxis::operator!=(const OptionalAxis &other)
             {
                 return !(*this == other);
             }

core/tests/Data/TestSpectrogramSeries.cpp 0 -1

             #include "Data/SpectrogramSeries.h"
             #include "DataSeriesBuilders.h"
             #include "DataSeriesUtils.h"
             #include <QObject>
             #include <QtTest>
             namespace {
             // Aliases used to facilitate reading of test inputs
             using X = DataContainer;
             using Y = DataContainer;
             using Values = DataContainer;
             using Components = std::vector<DataContainer>;
             } // namespace
             /**
              * @brief The TestSpectrogramSeries class defines unit tests on spectrogram series.
              *
              * Most of these unit tests use generic tests defined for DataSeries (@sa DataSeriesUtils)
              */
             class TestSpectrogramSeries : public QObject {
                 Q_OBJECT
             private slots:
                 /// Tests construction of a spectrogram series
                 void testCtor_data();
                 void testCtor();
                 /// Tests merge of two spectrogram series
                 void testMerge_data();
                 void testMerge();
-                /// @todo ALX: test subdataseries
                 /// Tests get subdata of a spectrogram series
                 void testSubDataSeries_data();
                 void testSubDataSeries();
             };
             void TestSpectrogramSeries::testCtor_data()
             {
                 // x-axis data
                 QTest::addColumn<X>("xAxisData");
                 // y-axis data
                 QTest::addColumn<Y>("yAxisData");
                 // values data
                 QTest::addColumn<Values>("valuesData");
                 // construction expected to be valid
                 QTest::addColumn<bool>("expectOK");
                 // expected x-axis data (when construction is valid)
                 QTest::addColumn<X>("expectedXAxisData");
                 // expected components data (when construction is valid)
                 QTest::addColumn<Components>("expectedComponentsData");
                 QTest::newRow(
                     "invalidData (number of values by component aren't equal to the number of x-axis data)")
                     << X{1., 2., 3., 4., 5.} << Y{1., 2., 3.} << Values{1., 2., 3.} << false << X{}
                     << Components{};
                 QTest::newRow("invalidData (number of components aren't equal to the number of y-axis data)")
                     << X{1., 2., 3., 4., 5.} << Y{1., 2.} // 2 y-axis data
                     << Values{1., 2., 3., 4., 5.}         // 1 component
                     << false << X{} << Components{};
                 QTest::newRow("sortedData") << X{1., 2., 3., 4., 5.} << Y{1., 2.}              // 2 y-axis data
                                             << Values{1., 2., 3., 4., 5., 6., 7., 8., 9., 10.} // 2 components
                                             << true << X{1., 2., 3., 4., 5.}
                                             << Components{{1., 3., 5., 7., 9.}, {2., 4., 6., 8., 10.}};
                 QTest::newRow("unsortedData") << X{5., 4., 3., 2., 1.} << Y{1., 2.}
                                               << Values{1., 2., 3., 4., 5., 6., 7., 8., 9., 10.} << true
                                               << X{1., 2., 3., 4., 5.}
                                               << Components{{9., 7., 5., 3., 1.}, {10., 8., 6., 4., 2.}};
             }
             void TestSpectrogramSeries::testCtor()
             {
                 // Creates series
                 QFETCH(X, xAxisData);
                 QFETCH(Y, yAxisData);
                 QFETCH(Values, valuesData);
                 QFETCH(bool, expectOK);
                 if (expectOK) {
                     auto series = SpectrogramBuilder{}
                                       .setX(std::move(xAxisData))
                                       .setY(std::move(yAxisData))
                                       .setValues(std::move(valuesData))
                                       .build();
                     // Validates results
                     QFETCH(X, expectedXAxisData);
                     QFETCH(Components, expectedComponentsData);
                     validateRange(series->cbegin(), series->cend(), expectedXAxisData, expectedComponentsData);
                 }
                 else {
                     QVERIFY_EXCEPTION_THROWN(SpectrogramBuilder{}
                                                  .setX(std::move(xAxisData))
                                                  .setY(std::move(yAxisData))
                                                  .setValues(std::move(valuesData))
                                                  .build(),
                                              std::invalid_argument);
                 }
             }
             void TestSpectrogramSeries::testMerge_data()
             {
                 testMerge_struct<SpectrogramSeries, Components>();
                 QTest::newRow("sortedMerge") << SpectrogramBuilder{}
                                                     .setX({1., 2., 3.})
                                                     .setY({1., 2.})
                                                     .setValues({10., 11., 20., 21., 30., 31})
                                                     .build()
                                              << SpectrogramBuilder{}
                                                     .setX({4., 5., 6.})
                                                     .setY({1., 2.})
                                                     .setValues({40., 41., 50., 51., 60., 61})
                                                     .build()
                                              << DataContainer{1., 2., 3., 4., 5., 6.}
                                              << Components{{10., 20., 30., 40., 50., 60.},
                                                            {11., 21., 31., 41., 51., 61}};
                 QTest::newRow(
                     "unsortedMerge (merge not made because the two data series have different y-axes)")
                     << SpectrogramBuilder{}
                            .setX({4., 5., 6.})
                            .setY({1., 2.})
                            .setValues({40., 41., 50., 51., 60., 61})
                            .build()
                     << SpectrogramBuilder{}
                            .setX({1., 2., 3.})
                            .setY({3., 4.})
                            .setValues({10., 11., 20., 21., 30., 31})
                            .build()
                     << DataContainer{4., 5., 6.} << Components{{40., 50., 60.}, {41., 51., 61}};
                 QTest::newRow(
                     "unsortedMerge (unsortedMerge (merge is made because the two data series have the same "
                     "y-axis)")
                     << SpectrogramBuilder{}
                            .setX({4., 5., 6.})
                            .setY({1., 2.})
                            .setValues({40., 41., 50., 51., 60., 61})
                            .build()
                     << SpectrogramBuilder{}
                            .setX({1., 2., 3.})
                            .setY({1., 2.})
                            .setValues({10., 11., 20., 21., 30., 31})
                            .build()
                     << DataContainer{1., 2., 3., 4., 5., 6.}
                     << Components{{10., 20., 30., 40., 50., 60.}, {11., 21., 31., 41., 51., 61}};
             }
             void TestSpectrogramSeries::testMerge()
             {
                 testMerge_t<SpectrogramSeries, Components>();
             }
             void TestSpectrogramSeries::testSubDataSeries_data()
             {
                 testSubDataSeries_struct<SpectrogramSeries, Components>();
                 QTest::newRow("subDataSeries (the range includes all data)")
                     << SpectrogramBuilder{}
                            .setX({1., 2., 3.})
                            .setY({1., 2.})
                            .setValues({10., 11., 20., 21., 30., 31})
                            .build()
                     << SqpRange{0., 5.} << DataContainer{1., 2., 3.}
                     << Components{{10., 20., 30.}, {11., 21., 31.}};
                 QTest::newRow("subDataSeries (the range includes no data)")
                     << SpectrogramBuilder{}
                            .setX({1., 2., 3.})
                            .setY({1., 2.})
                            .setValues({10., 11., 20., 21., 30., 31})
                            .build()
                     << SqpRange{4., 5.} << DataContainer{} << Components{{}, {}};
                 QTest::newRow("subDataSeries (the range includes some data)")
                     << SpectrogramBuilder{}
                            .setX({1., 2., 3.})
                            .setY({1., 2.})
                            .setValues({10., 11., 20., 21., 30., 31})
                            .build()
                     << SqpRange{1.1, 3} << DataContainer{2., 3.} << Components{{20., 30.}, {21., 31.}};
             }
             void TestSpectrogramSeries::testSubDataSeries()
             {
                 testSubDataSeries_t<SpectrogramSeries, Components>();
             }
             QTEST_MAIN(TestSpectrogramSeries)
             #include "TestSpectrogramSeries.moc"

gui/include/Visualization/VisualizationGraphHelper.h +2 0

             #ifndef SCIQLOP_VISUALIZATIONGRAPHHELPER_H
             #define SCIQLOP_VISUALIZATIONGRAPHHELPER_H
             #include "Visualization/VisualizationDefs.h"
             #include <Data/SqpRange.h>
             #include <QLoggingCategory>
             #include <QVector>
             #include <memory>
             Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationGraphHelper)
             class IDataSeries;
             class QCPAbstractPlottable;
             class QCustomPlot;
             class Variable;
             /**
              * @brief The VisualizationGraphHelper class aims to create the QCustomPlot components relative to a
              * variable, depending on the data series of this variable
              */
             struct VisualizationGraphHelper {
                 /**
                  * Creates (if possible) the QCustomPlot components relative to the variable passed in
                  * parameter, and adds these to the plot passed in parameter.
                  * @param variable the variable for which to create the components
                  * @param plot the plot in which to add the created components. It takes ownership of these
                  * components.
                  * @return the list of the components created
                  */
                 static PlottablesMap create(std::shared_ptr<Variable> variable, QCustomPlot &plot) noexcept;
                 static void updateData(PlottablesMap &plottables, std::shared_ptr<IDataSeries> dataSeries,
                                        const SqpRange &dateTime);
+                static void setYAxisRange(std::shared_ptr<Variable> variable, QCustomPlot &plot) noexcept;
             };
             #endif // SCIQLOP_VISUALIZATIONGRAPHHELPER_H

gui/include/Visualization/VisualizationGraphWidget.h +2 -1

             #ifndef SCIQLOP_VISUALIZATIONGRAPHWIDGET_H
             #define SCIQLOP_VISUALIZATIONGRAPHWIDGET_H
             #include "Visualization/IVisualizationWidget.h"
             #include "Visualization/VisualizationDragWidget.h"
             #include <QLoggingCategory>
             #include <QWidget>
             #include <memory>
             #include <Common/spimpl.h>
             Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationGraphWidget)
             class QCPRange;
             class QCustomPlot;
             class SqpRange;
             class Variable;
             class VisualizationZoneWidget;
             namespace Ui {
             class VisualizationGraphWidget;
             } // namespace Ui
             class VisualizationGraphWidget : public VisualizationDragWidget, public IVisualizationWidget {
                 Q_OBJECT
                 friend class QCustomPlotSynchronizer;
                 friend class VisualizationGraphRenderingDelegate;
             public:
                 explicit VisualizationGraphWidget(const QString &name = {}, QWidget *parent = 0);
                 virtual ~VisualizationGraphWidget();
                 VisualizationZoneWidget *parentZoneWidget() const noexcept;
                 /// If acquisition isn't enable, requestDataLoading signal cannot be emit
                 void enableAcquisition(bool enable);
                 void addVariable(std::shared_ptr<Variable> variable, SqpRange range);
                 /// Removes a variable from the graph
                 void removeVariable(std::shared_ptr<Variable> variable) noexcept;
                 /// Returns the list of all variables used in the graph
                 QList<std::shared_ptr<Variable> > variables() const;
-                void setYRange(const SqpRange &range);
+                /// Sets the y-axis range based on the data of a variable
+                void setYRange(std::shared_ptr<Variable> variable);
                 SqpRange graphRange() const noexcept;
                 void setGraphRange(const SqpRange &range);
                 // IVisualizationWidget interface
                 void accept(IVisualizationWidgetVisitor *visitor) override;
                 bool canDrop(const Variable &variable) const override;
                 bool contains(const Variable &variable) const override;
                 QString name() const override;
                 // VisualisationDragWidget
                 QMimeData *mimeData() const override;
                 bool isDragAllowed() const override;
                 void highlightForMerge(bool highlighted) override;
             signals:
                 void synchronize(const SqpRange &range, const SqpRange &oldRange);
                 void requestDataLoading(QVector<std::shared_ptr<Variable> > variable, const SqpRange &range,
                                         bool synchronise);
                 /// Signal emitted when the variable is about to be removed from the graph
                 void variableAboutToBeRemoved(std::shared_ptr<Variable> var);
                 /// Signal emitted when the variable has been added to the graph
                 void variableAdded(std::shared_ptr<Variable> var);
             protected:
                 void closeEvent(QCloseEvent *event) override;
                 void enterEvent(QEvent *event) override;
                 void leaveEvent(QEvent *event) override;
                 QCustomPlot &plot() noexcept;
             private:
                 Ui::VisualizationGraphWidget *ui;
                 class VisualizationGraphWidgetPrivate;
                 spimpl::unique_impl_ptr<VisualizationGraphWidgetPrivate> impl;
             private slots:
                 /// Slot called when right clicking on the graph (displays a menu)
                 void onGraphMenuRequested(const QPoint &pos) noexcept;
                 /// Rescale the X axe to range parameter
                 void onRangeChanged(const QCPRange &t1, const QCPRange &t2);
                 /// Slot called when a mouse move was made
                 void onMouseMove(QMouseEvent *event) noexcept;
                 /// Slot called when a mouse wheel was made, to perform some processing before the zoom is done
                 void onMouseWheel(QWheelEvent *event) noexcept;
                 /// Slot called when a mouse press was made, to activate the calibration of a graph
                 void onMousePress(QMouseEvent *event) noexcept;
                 /// Slot called when a mouse release was made, to deactivate the calibration of a graph
                 void onMouseRelease(QMouseEvent *event) noexcept;
                 void onDataCacheVariableUpdated();
                 void onUpdateVarDisplaying(std::shared_ptr<Variable> variable, const SqpRange &range);
             };
             #endif // SCIQLOP_VISUALIZATIONGRAPHWIDGET_H

gui/src/Visualization/VisualizationGraphHelper.cpp +139 -1

             #include "Visualization/VisualizationGraphHelper.h"
             #include "Visualization/qcustomplot.h"
             #include <Common/ColorUtils.h>
             #include <Data/ScalarSeries.h>
+            #include <Data/SpectrogramSeries.h>
             #include <Data/VectorSeries.h>
             #include <Variable/Variable.h>
             Q_LOGGING_CATEGORY(LOG_VisualizationGraphHelper, "VisualizationGraphHelper")
             namespace {
             class SqpDataContainer : public QCPGraphDataContainer {
             public:
                 void appendGraphData(const QCPGraphData &data) { mData.append(data); }
             };
             /**
              * Struct used to create plottables, depending on the type of the data series from which to create
              * them
              * @tparam T the data series' type
              * @remarks Default implementation can't create plottables
              */
             template <typename T, typename Enabled = void>
             struct PlottablesCreator {
                 static PlottablesMap createPlottables(T &, QCustomPlot &)
                 {
                     qCCritical(LOG_DataSeries())
                         << QObject::tr("Can't create plottables: unmanaged data series type");
                     return {};
                 }
             };
             /**
              * Specialization of PlottablesCreator for scalars and vectors
              * @sa ScalarSeries
              * @sa VectorSeries
              */
             template <typename T>
             struct PlottablesCreator<T,
                                      typename std::enable_if_t<std::is_base_of<ScalarSeries, T>::value
                                                                or std::is_base_of<VectorSeries, T>::value> > {
                 static PlottablesMap createPlottables(T &dataSeries, QCustomPlot &plot)
                 {
                     PlottablesMap result{};
                     // Gets the number of components of the data series
                     dataSeries.lockRead();
                     auto componentCount = dataSeries.valuesData()->componentCount();
                     dataSeries.unlock();
                     auto colors = ColorUtils::colors(Qt::blue, Qt::red, componentCount);
                     // For each component of the data series, creates a QCPGraph to add to the plot
                     for (auto i = 0; i < componentCount; ++i) {
                         auto graph = plot.addGraph();
                         graph->setPen(QPen{colors.at(i)});
                         result.insert({i, graph});
                     }
                     plot.replot();
                     return result;
                 }
             };
             /**
+             * Specialization of PlottablesCreator for spectrograms
+             * @sa SpectrogramSeries
+             */
+            template <typename T>
+            struct PlottablesCreator<T,
+                                     typename std::enable_if_t<std::is_base_of<SpectrogramSeries, T>::value> > {
+                static PlottablesMap createPlottables(T &dataSeries, QCustomPlot &plot)
+                {
+                    PlottablesMap result{};
+                    result.insert({0, new QCPColorMap{plot.xAxis, plot.yAxis}});
+                    plot.replot();
+                    return result;
+                }
+            };
+            /**
              * Struct used to update plottables, depending on the type of the data series from which to update
              * them
              * @tparam T the data series' type
              * @remarks Default implementation can't update plottables
              */
             template <typename T, typename Enabled = void>
             struct PlottablesUpdater {
+                static void setPlotYAxisRange(T &, const SqpRange &, QCustomPlot &)
+                {
+                    qCCritical(LOG_VisualizationGraphHelper())
+                        << QObject::tr("Can't set plot y-axis range: unmanaged data series type");
+                }
                 static void updatePlottables(T &, PlottablesMap &, const SqpRange &, bool)
                 {
-                    qCCritical(LOG_DataSeries())
+                    qCCritical(LOG_VisualizationGraphHelper())
                         << QObject::tr("Can't update plottables: unmanaged data series type");
                 }
             };
             /**
              * Specialization of PlottablesUpdater for scalars and vectors
              * @sa ScalarSeries
              * @sa VectorSeries
              */
             template <typename T>
             struct PlottablesUpdater<T,
                                      typename std::enable_if_t<std::is_base_of<ScalarSeries, T>::value
                                                                or std::is_base_of<VectorSeries, T>::value> > {
+                static void setPlotYAxisRange(T &dataSeries, const SqpRange &xAxisRange, QCustomPlot &plot)
+                {
+                    auto minValue = 0., maxValue = 0.;
+                    dataSeries.lockRead();
+                    auto valuesBounds = dataSeries.valuesBounds(xAxisRange.m_TStart, xAxisRange.m_TEnd);
+                    auto end = dataSeries.cend();
+                    if (valuesBounds.first != end && valuesBounds.second != end) {
+                        auto rangeValue = [](const auto &value) { return std::isnan(value) ? 0. : value; };
+                        minValue = rangeValue(valuesBounds.first->minValue());
+                        maxValue = rangeValue(valuesBounds.second->maxValue());
+                    }
+                    dataSeries.unlock();
+                    plot.yAxis->setRange(QCPRange{minValue, maxValue});
+                }
                 static void updatePlottables(T &dataSeries, PlottablesMap &plottables, const SqpRange &range,
                                              bool rescaleAxes)
                 {
                     // For each plottable to update, resets its data
                     std::map<int, QSharedPointer<SqpDataContainer> > dataContainers{};
                     for (const auto &plottable : plottables) {
                         if (auto graph = dynamic_cast<QCPGraph *>(plottable.second)) {
                             auto dataContainer = QSharedPointer<SqpDataContainer>::create();
                             graph->setData(dataContainer);
                             dataContainers.insert({plottable.first, dataContainer});
                         }
                     }
                     dataSeries.lockRead();
                     // - Gets the data of the series included in the current range
                     // - Updates each plottable by adding, for each data item, a point that takes x-axis data
                     // and value data. The correct value is retrieved according to the index of the component
                     auto subDataIts = dataSeries.xAxisRange(range.m_TStart, range.m_TEnd);
                     for (auto it = subDataIts.first; it != subDataIts.second; ++it) {
                         for (const auto &dataContainer : dataContainers) {
                             auto componentIndex = dataContainer.first;
                             dataContainer.second->appendGraphData(
                                 QCPGraphData(it->x(), it->value(componentIndex)));
                         }
                     }
                     dataSeries.unlock();
                     if (!plottables.empty()) {
                         auto plot = plottables.begin()->second->parentPlot();
                         if (rescaleAxes) {
                             plot->rescaleAxes();
                         }
                         plot->replot();
                     }
                 }
             };
             /**
+             * Specialization of PlottablesUpdater for spectrograms
+             * @sa SpectrogramSeries
+             */
+            template <typename T>
+            struct PlottablesUpdater<T,
+                                     typename std::enable_if_t<std::is_base_of<SpectrogramSeries, T>::value> > {
+                static void setPlotYAxisRange(T &dataSeries, const SqpRange &xAxisRange, QCustomPlot &plot)
+                {
+                    double min, max;
+                    /// @todo ALX: use iterators here
+                    std::tie(min, max) = dataSeries.yAxis().bounds();
+                    if (!std::isnan(min) && !std::isnan(max)) {
+                        plot.yAxis->setRange(QCPRange{min, max});
+                    }
+                }
+                static void updatePlottables(T &dataSeries, PlottablesMap &plottables, const SqpRange &range,
+                                             bool rescaleAxes)
+                {
+                    if (plottables.empty()) {
+                        qCDebug(LOG_VisualizationGraphHelper())
+                            << QObject::tr("Can't update spectrogram: no colormap has been associated");
+                        return;
+                    }
+                    // Gets the colormap to update (normally there is only one colormap)
+                    Q_ASSERT(plottables.size() == 1);
+                    auto colormap = dynamic_cast<QCPColorMap *>(plottables.at(0));
+                    Q_ASSERT(colormap != nullptr);
+                    dataSeries.lockRead();
+                    auto its = dataSeries.xAxisRange(range.m_TStart, range.m_TEnd);
+                    /// @todo ALX: use iterators here
+                    auto yAxis = dataSeries.yAxis();
+                    // Gets properties of x-axis and y-axis to set size and range of the colormap
+                    auto nbX = std::distance(its.first, its.second);
+                    auto xMin = nbX != 0 ? its.first->x() : 0.;
+                    auto xMax = nbX != 0 ? (its.second - 1)->x() : 0.;
+                    auto nbY = yAxis.size();
+                    auto yMin = 0., yMax = 0.;
+                    if (nbY != 0) {
+                        std::tie(yMin, yMax) = yAxis.bounds();
+                    }
+                    colormap->data()->setSize(nbX, nbY);
+                    colormap->data()->setRange(QCPRange{xMin, xMax}, QCPRange{yMin, yMax});
+                    // Sets values
+                    auto xIndex = 0;
+                    for (auto it = its.first; it != its.second; ++it, ++xIndex) {
+                        for (auto yIndex = 0; yIndex < nbY; ++yIndex) {
+                            colormap->data()->setCell(xIndex, yIndex, it->value(yIndex));
+                        }
+                    }
+                    dataSeries.unlock();
+                    // Rescales axes
+                    auto plot = colormap->parentPlot();
+                    if (rescaleAxes) {
+                        plot->rescaleAxes();
+                    }
+                    plot->replot();
+                }
+            };
+            /**
              * Helper used to create/update plottables
              */
             struct IPlottablesHelper {
                 virtual ~IPlottablesHelper() noexcept = default;
                 virtual PlottablesMap create(QCustomPlot &plot) const = 0;
+                virtual void setYAxisRange(const SqpRange &xAxisRange, QCustomPlot &plot) const = 0;
                 virtual void update(PlottablesMap &plottables, const SqpRange &range,
                                     bool rescaleAxes = false) const = 0;
             };
             /**
              * Default implementation of IPlottablesHelper, which takes data series to create/update plottables
              * @tparam T the data series' type
              */
             template <typename T>
             struct PlottablesHelper : public IPlottablesHelper {
                 explicit PlottablesHelper(T &dataSeries) : m_DataSeries{dataSeries} {}
                 PlottablesMap create(QCustomPlot &plot) const override
                 {
                     return PlottablesCreator<T>::createPlottables(m_DataSeries, plot);
                 }
                 void update(PlottablesMap &plottables, const SqpRange &range, bool rescaleAxes) const override
                 {
                     PlottablesUpdater<T>::updatePlottables(m_DataSeries, plottables, range, rescaleAxes);
                 }
+                void setYAxisRange(const SqpRange &xAxisRange, QCustomPlot &plot) const override
+                {
+                    return PlottablesUpdater<T>::setPlotYAxisRange(m_DataSeries, xAxisRange, plot);
+                }
                 T &m_DataSeries;
             };
             /// Creates IPlottablesHelper according to a data series
             std::unique_ptr<IPlottablesHelper> createHelper(std::shared_ptr<IDataSeries> dataSeries) noexcept
             {
                 if (auto scalarSeries = std::dynamic_pointer_cast<ScalarSeries>(dataSeries)) {
                     return std::make_unique<PlottablesHelper<ScalarSeries> >(*scalarSeries);
                 }
+                else if (auto spectrogramSeries = std::dynamic_pointer_cast<SpectrogramSeries>(dataSeries)) {
+                    return std::make_unique<PlottablesHelper<SpectrogramSeries> >(*spectrogramSeries);
+                }
                 else if (auto vectorSeries = std::dynamic_pointer_cast<VectorSeries>(dataSeries)) {
                     return std::make_unique<PlottablesHelper<VectorSeries> >(*vectorSeries);
                 }
                 else {
                     return std::make_unique<PlottablesHelper<IDataSeries> >(*dataSeries);
                 }
             }
             } // namespace
             PlottablesMap VisualizationGraphHelper::create(std::shared_ptr<Variable> variable,
                                                            QCustomPlot &plot) noexcept
             {
                 if (variable) {
                     auto helper = createHelper(variable->dataSeries());
                     auto plottables = helper->create(plot);
                     return plottables;
                 }
                 else {
                     qCDebug(LOG_VisualizationGraphHelper())
                         << QObject::tr("Can't create graph plottables : the variable is null");
                     return PlottablesMap{};
                 }
             }
+            void VisualizationGraphHelper::setYAxisRange(std::shared_ptr<Variable> variable,
+                                                         QCustomPlot &plot) noexcept
+            {
+                if (variable) {
+                    auto helper = createHelper(variable->dataSeries());
+                    helper->setYAxisRange(variable->range(), plot);
+                }
+                else {
+                    qCDebug(LOG_VisualizationGraphHelper())
+                        << QObject::tr("Can't set y-axis range of plot: the variable is null");
+                }
+            }
             void VisualizationGraphHelper::updateData(PlottablesMap &plottables,
                                                       std::shared_ptr<IDataSeries> dataSeries,
                                                       const SqpRange &dateTime)
             {
                 auto helper = createHelper(dataSeries);
                 helper->update(plottables, dateTime);
             }

gui/src/Visualization/VisualizationGraphWidget.cpp +7 -3

             #include "Visualization/VisualizationGraphWidget.h"
             #include "Visualization/IVisualizationWidgetVisitor.h"
             #include "Visualization/VisualizationDefs.h"
             #include "Visualization/VisualizationGraphHelper.h"
             #include "Visualization/VisualizationGraphRenderingDelegate.h"
             #include "Visualization/VisualizationZoneWidget.h"
             #include "ui_VisualizationGraphWidget.h"
             #include <Common/MimeTypesDef.h>
             #include <Data/ArrayData.h>
             #include <Data/IDataSeries.h>
             #include <DragAndDrop/DragDropHelper.h>
             #include <Settings/SqpSettingsDefs.h>
             #include <SqpApplication.h>
             #include <Time/TimeController.h>
             #include <Variable/Variable.h>
             #include <Variable/VariableController.h>
             #include <unordered_map>
             Q_LOGGING_CATEGORY(LOG_VisualizationGraphWidget, "VisualizationGraphWidget")
             namespace {
             /// Key pressed to enable zoom on horizontal axis
             const auto HORIZONTAL_ZOOM_MODIFIER = Qt::NoModifier;
             /// Key pressed to enable zoom on vertical axis
             const auto VERTICAL_ZOOM_MODIFIER = Qt::ControlModifier;
             } // namespace
             struct VisualizationGraphWidget::VisualizationGraphWidgetPrivate {
                 explicit VisualizationGraphWidgetPrivate(const QString &name)
                         : m_Name{name},
                           m_DoAcquisition{true},
                           m_IsCalibration{false},
                           m_RenderingDelegate{nullptr}
                 {
                 }
                 QString m_Name;
                 // 1 variable -> n qcpplot
                 std::map<std::shared_ptr<Variable>, PlottablesMap> m_VariableToPlotMultiMap;
                 bool m_DoAcquisition;
                 bool m_IsCalibration;
-                QCPItemTracer *m_TextTracer;
                 /// Delegate used to attach rendering features to the plot
                 std::unique_ptr<VisualizationGraphRenderingDelegate> m_RenderingDelegate;
             };
             VisualizationGraphWidget::VisualizationGraphWidget(const QString &name, QWidget *parent)
                     : VisualizationDragWidget{parent},
                       ui{new Ui::VisualizationGraphWidget},
                       impl{spimpl::make_unique_impl<VisualizationGraphWidgetPrivate>(name)}
             {
                 ui->setupUi(this);
                 // 'Close' options : widget is deleted when closed
                 setAttribute(Qt::WA_DeleteOnClose);
                 // Set qcpplot properties :
                 // - Drag (on x-axis) and zoom are enabled
                 // - Mouse wheel on qcpplot is intercepted to determine the zoom orientation
                 ui->widget->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom | QCP::iSelectItems);
                 ui->widget->axisRect()->setRangeDrag(Qt::Horizontal);
                 // The delegate must be initialized after the ui as it uses the plot
                 impl->m_RenderingDelegate = std::make_unique<VisualizationGraphRenderingDelegate>(*this);
                 connect(ui->widget, &QCustomPlot::mousePress, this, &VisualizationGraphWidget::onMousePress);
                 connect(ui->widget, &QCustomPlot::mouseRelease, this,
                         &VisualizationGraphWidget::onMouseRelease);
                 connect(ui->widget, &QCustomPlot::mouseMove, this, &VisualizationGraphWidget::onMouseMove);
                 connect(ui->widget, &QCustomPlot::mouseWheel, this, &VisualizationGraphWidget::onMouseWheel);
                 connect(ui->widget->xAxis, static_cast<void (QCPAxis::*)(const QCPRange &, const QCPRange &)>(
                                                &QCPAxis::rangeChanged),
                         this, &VisualizationGraphWidget::onRangeChanged, Qt::DirectConnection);
                 // Activates menu when right clicking on the graph
                 ui->widget->setContextMenuPolicy(Qt::CustomContextMenu);
                 connect(ui->widget, &QCustomPlot::customContextMenuRequested, this,
                         &VisualizationGraphWidget::onGraphMenuRequested);
                 connect(this, &VisualizationGraphWidget::requestDataLoading, &sqpApp->variableController(),
                         &VariableController::onRequestDataLoading);
                 connect(&sqpApp->variableController(), &VariableController::updateVarDisplaying, this,
                         &VisualizationGraphWidget::onUpdateVarDisplaying);
             }
             VisualizationGraphWidget::~VisualizationGraphWidget()
             {
                 delete ui;
             }
             VisualizationZoneWidget *VisualizationGraphWidget::parentZoneWidget() const noexcept
             {
                 auto parent = parentWidget();
                 while (parent != nullptr && !qobject_cast<VisualizationZoneWidget *>(parent)) {
                     parent = parent->parentWidget();
                 }
                 return qobject_cast<VisualizationZoneWidget *>(parent);
             }
             void VisualizationGraphWidget::enableAcquisition(bool enable)
             {
                 impl->m_DoAcquisition = enable;
             }
             void VisualizationGraphWidget::addVariable(std::shared_ptr<Variable> variable, SqpRange range)
             {
                 // Uses delegate to create the qcpplot components according to the variable
                 auto createdPlottables = VisualizationGraphHelper::create(variable, *ui->widget);
                 impl->m_VariableToPlotMultiMap.insert({variable, std::move(createdPlottables)});
                 // Set axes properties according to the units of the data series
                 /// @todo : for the moment, no control is performed on the axes: the units and the tickers
                 /// are fixed for the default x-axis and y-axis of the plot, and according to the new graph
                 auto xAxisUnit = Unit{};
                 auto valuesUnit = Unit{};
                 if (auto dataSeries = variable->dataSeries()) {
                     dataSeries->lockRead();
                     xAxisUnit = dataSeries->xAxisUnit();
                     valuesUnit = dataSeries->valuesUnit();
                     dataSeries->unlock();
                 }
                 impl->m_RenderingDelegate->setAxesProperties(xAxisUnit, valuesUnit);
                 connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
                 this->enableAcquisition(false);
                 this->setGraphRange(range);
                 this->enableAcquisition(true);
                 emit requestDataLoading(QVector<std::shared_ptr<Variable> >() << variable, range, false);
                 emit variableAdded(variable);
             }
             void VisualizationGraphWidget::removeVariable(std::shared_ptr<Variable> variable) noexcept
             {
                 // Each component associated to the variable :
                 // - is removed from qcpplot (which deletes it)
                 // - is no longer referenced in the map
                 auto variableIt = impl->m_VariableToPlotMultiMap.find(variable);
                 if (variableIt != impl->m_VariableToPlotMultiMap.cend()) {
                     emit variableAboutToBeRemoved(variable);
                     auto &plottablesMap = variableIt->second;
                     for (auto plottableIt = plottablesMap.cbegin(), plottableEnd = plottablesMap.cend();
                          plottableIt != plottableEnd;) {
                         ui->widget->removePlottable(plottableIt->second);
                         plottableIt = plottablesMap.erase(plottableIt);
                     }
                     impl->m_VariableToPlotMultiMap.erase(variableIt);
                 }
                 // Updates graph
                 ui->widget->replot();
             }
             QList<std::shared_ptr<Variable> > VisualizationGraphWidget::variables() const
             {
                 auto variables = QList<std::shared_ptr<Variable> >{};
                 for (auto it = std::cbegin(impl->m_VariableToPlotMultiMap);
                      it != std::cend(impl->m_VariableToPlotMultiMap); ++it) {
                     variables << it->first;
                 }
                 return variables;
             }
-            void VisualizationGraphWidget::setYRange(const SqpRange &range)
+            void VisualizationGraphWidget::setYRange(std::shared_ptr<Variable> variable)
             {
-                ui->widget->yAxis->setRange(range.m_TStart, range.m_TEnd);
+                if (!variable) {
+                    qCCritical(LOG_VisualizationGraphWidget()) << "Can't set y-axis range: variable is null";
+                    return;
+                }
+                VisualizationGraphHelper::setYAxisRange(variable, *ui->widget);
             }
             SqpRange VisualizationGraphWidget::graphRange() const noexcept
             {
                 auto graphRange = ui->widget->xAxis->range();
                 return SqpRange{graphRange.lower, graphRange.upper};
             }
             void VisualizationGraphWidget::setGraphRange(const SqpRange &range)
             {
                 qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::setGraphRange START");
                 ui->widget->xAxis->setRange(range.m_TStart, range.m_TEnd);
                 ui->widget->replot();
                 qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::setGraphRange END");
             }
             void VisualizationGraphWidget::accept(IVisualizationWidgetVisitor *visitor)
             {
                 if (visitor) {
                     visitor->visit(this);
                 }
                 else {
                     qCCritical(LOG_VisualizationGraphWidget())
                         << tr("Can't visit widget : the visitor is null");
                 }
             }
             bool VisualizationGraphWidget::canDrop(const Variable &variable) const
             {
                 /// @todo : for the moment, a graph can always accomodate a variable
                 Q_UNUSED(variable);
                 return true;
             }
             bool VisualizationGraphWidget::contains(const Variable &variable) const
             {
                 // Finds the variable among the keys of the map
                 auto variablePtr = &variable;
                 auto findVariable
                     = [variablePtr](const auto &entry) { return variablePtr == entry.first.get(); };
                 auto end = impl->m_VariableToPlotMultiMap.cend();
                 auto it = std::find_if(impl->m_VariableToPlotMultiMap.cbegin(), end, findVariable);
                 return it != end;
             }
             QString VisualizationGraphWidget::name() const
             {
                 return impl->m_Name;
             }
             QMimeData *VisualizationGraphWidget::mimeData() const
             {
                 auto mimeData = new QMimeData;
                 mimeData->setData(MIME_TYPE_GRAPH, QByteArray{});
                 auto timeRangeData = TimeController::mimeDataForTimeRange(graphRange());
                 mimeData->setData(MIME_TYPE_TIME_RANGE, timeRangeData);
                 return mimeData;
             }
             bool VisualizationGraphWidget::isDragAllowed() const
             {
                 return true;
             }
             void VisualizationGraphWidget::highlightForMerge(bool highlighted)
             {
                 if (highlighted) {
                     plot().setBackground(QBrush(QColor("#BBD5EE")));
                 }
                 else {
                     plot().setBackground(QBrush(Qt::white));
                 }
                 plot().update();
             }
             void VisualizationGraphWidget::closeEvent(QCloseEvent *event)
             {
                 Q_UNUSED(event);
                 // Prevents that all variables will be removed from graph when it will be closed
                 for (auto &variableEntry : impl->m_VariableToPlotMultiMap) {
                     emit variableAboutToBeRemoved(variableEntry.first);
                 }
             }
             void VisualizationGraphWidget::enterEvent(QEvent *event)
             {
                 Q_UNUSED(event);
                 impl->m_RenderingDelegate->showGraphOverlay(true);
             }
             void VisualizationGraphWidget::leaveEvent(QEvent *event)
             {
                 Q_UNUSED(event);
                 impl->m_RenderingDelegate->showGraphOverlay(false);
             }
             QCustomPlot &VisualizationGraphWidget::plot() noexcept
             {
                 return *ui->widget;
             }
             void VisualizationGraphWidget::onGraphMenuRequested(const QPoint &pos) noexcept
             {
                 QMenu graphMenu{};
                 // Iterates on variables (unique keys)
                 for (auto it = impl->m_VariableToPlotMultiMap.cbegin(),
                           end = impl->m_VariableToPlotMultiMap.cend();
                      it != end; it = impl->m_VariableToPlotMultiMap.upper_bound(it->first)) {
                     // 'Remove variable' action
                     graphMenu.addAction(tr("Remove variable %1").arg(it->first->name()),
                                         [ this, var = it->first ]() { removeVariable(var); });
                 }
                 if (!graphMenu.isEmpty()) {
                     graphMenu.exec(QCursor::pos());
                 }
             }
             void VisualizationGraphWidget::onRangeChanged(const QCPRange &t1, const QCPRange &t2)
             {
                 qCDebug(LOG_VisualizationGraphWidget()) << tr("TORM: VisualizationGraphWidget::onRangeChanged")
                                                         << QThread::currentThread()->objectName() << "DoAcqui"
                                                         << impl->m_DoAcquisition;
                 auto graphRange = SqpRange{t1.lower, t1.upper};
                 auto oldGraphRange = SqpRange{t2.lower, t2.upper};
                 if (impl->m_DoAcquisition) {
                     QVector<std::shared_ptr<Variable> > variableUnderGraphVector;
                     for (auto it = impl->m_VariableToPlotMultiMap.begin(),
                               end = impl->m_VariableToPlotMultiMap.end();
                          it != end; it = impl->m_VariableToPlotMultiMap.upper_bound(it->first)) {
                         variableUnderGraphVector.push_back(it->first);
                     }
                     emit requestDataLoading(std::move(variableUnderGraphVector), graphRange,
                                             !impl->m_IsCalibration);
                     if (!impl->m_IsCalibration) {
                         qCDebug(LOG_VisualizationGraphWidget())
                             << tr("TORM: VisualizationGraphWidget::Synchronize notify !!")
                             << QThread::currentThread()->objectName() << graphRange << oldGraphRange;
                         emit synchronize(graphRange, oldGraphRange);
                     }
                 }
             }
             void VisualizationGraphWidget::onMouseMove(QMouseEvent *event) noexcept
             {
                 // Handles plot rendering when mouse is moving
                 impl->m_RenderingDelegate->onMouseMove(event);
                 VisualizationDragWidget::mouseMoveEvent(event);
             }
             void VisualizationGraphWidget::onMouseWheel(QWheelEvent *event) noexcept
             {
                 auto zoomOrientations = QFlags<Qt::Orientation>{};
                 // Lambda that enables a zoom orientation if the key modifier related to this orientation
                 // has
                 // been pressed
                 auto enableOrientation
                     = [&zoomOrientations, event](const auto &orientation, const auto &modifier) {
                           auto orientationEnabled = event->modifiers().testFlag(modifier);
                           zoomOrientations.setFlag(orientation, orientationEnabled);
                       };
                 enableOrientation(Qt::Vertical, VERTICAL_ZOOM_MODIFIER);
                 enableOrientation(Qt::Horizontal, HORIZONTAL_ZOOM_MODIFIER);
                 ui->widget->axisRect()->setRangeZoom(zoomOrientations);
             }
             void VisualizationGraphWidget::onMousePress(QMouseEvent *event) noexcept
             {
                 impl->m_IsCalibration = event->modifiers().testFlag(Qt::ControlModifier);
                 plot().setInteraction(QCP::iRangeDrag, !event->modifiers().testFlag(Qt::AltModifier));
                 VisualizationDragWidget::mousePressEvent(event);
             }
             void VisualizationGraphWidget::onMouseRelease(QMouseEvent *event) noexcept
             {
                 impl->m_IsCalibration = false;
             }
             void VisualizationGraphWidget::onDataCacheVariableUpdated()
             {
                 auto graphRange = ui->widget->xAxis->range();
                 auto dateTime = SqpRange{graphRange.lower, graphRange.upper};
                 for (auto &variableEntry : impl->m_VariableToPlotMultiMap) {
                     auto variable = variableEntry.first;
                     qCDebug(LOG_VisualizationGraphWidget())
                         << "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated S" << variable->range();
                     qCDebug(LOG_VisualizationGraphWidget())
                         << "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated E" << dateTime;
                     if (dateTime.contains(variable->range()) || dateTime.intersect(variable->range())) {
                         VisualizationGraphHelper::updateData(variableEntry.second, variable->dataSeries(),
                                                              variable->range());
                     }
                 }
             }
             void VisualizationGraphWidget::onUpdateVarDisplaying(std::shared_ptr<Variable> variable,
                                                                  const SqpRange &range)
             {
                 auto it = impl->m_VariableToPlotMultiMap.find(variable);
                 if (it != impl->m_VariableToPlotMultiMap.end()) {
                     VisualizationGraphHelper::updateData(it->second, variable->dataSeries(), range);
                 }
             }

gui/src/Visualization/VisualizationZoneWidget.cpp +1 -17

             #include "Visualization/VisualizationZoneWidget.h"
             #include "Visualization/IVisualizationWidgetVisitor.h"
             #include "Visualization/QCustomPlotSynchronizer.h"
             #include "Visualization/VisualizationGraphWidget.h"
             #include "Visualization/VisualizationWidget.h"
             #include "ui_VisualizationZoneWidget.h"
             #include "Common/MimeTypesDef.h"
             #include "Common/VisualizationDef.h"
             #include <Data/SqpRange.h>
             #include <Time/TimeController.h>
             #include <Variable/Variable.h>
             #include <Variable/VariableController.h>
             #include <Visualization/operations/FindVariableOperation.h>
             #include <DragAndDrop/DragDropHelper.h>
             #include <QUuid>
             #include <SqpApplication.h>
             #include <cmath>
             #include <QLayout>
             Q_LOGGING_CATEGORY(LOG_VisualizationZoneWidget, "VisualizationZoneWidget")
             namespace {
             /// Generates a default name for a new graph, according to the number of graphs already displayed in
             /// the zone
             QString defaultGraphName(const QLayout &layout)
             {
                 auto count = 0;
                 for (auto i = 0; i < layout.count(); ++i) {
                     if (dynamic_cast<VisualizationGraphWidget *>(layout.itemAt(i)->widget())) {
                         count++;
                     }
                 }
                 return QObject::tr("Graph %1").arg(count + 1);
             }
             /**
              * Applies a function to all graphs of the zone represented by its layout
              * @param layout the layout that contains graphs
              * @param fun the function to apply to each graph
              */
             template <typename Fun>
             void processGraphs(QLayout &layout, Fun fun)
             {
                 for (auto i = 0; i < layout.count(); ++i) {
                     if (auto item = layout.itemAt(i)) {
                         if (auto visualizationGraphWidget
                             = dynamic_cast<VisualizationGraphWidget *>(item->widget())) {
                             fun(*visualizationGraphWidget);
                         }
                     }
                 }
             }
             } // namespace
             struct VisualizationZoneWidget::VisualizationZoneWidgetPrivate {
                 explicit VisualizationZoneWidgetPrivate()
                         : m_SynchronisationGroupId{QUuid::createUuid()},
                           m_Synchronizer{std::make_unique<QCustomPlotSynchronizer>()}
                 {
                 }
                 QUuid m_SynchronisationGroupId;
                 std::unique_ptr<IGraphSynchronizer> m_Synchronizer;
                 // Returns the first graph in the zone or nullptr if there is no graph inside
                 VisualizationGraphWidget *firstGraph(const VisualizationZoneWidget *zoneWidget) const
                 {
                     VisualizationGraphWidget *firstGraph = nullptr;
                     auto layout = zoneWidget->ui->dragDropContainer->layout();
                     if (layout->count() > 0) {
                         if (auto visualizationGraphWidget
                             = qobject_cast<VisualizationGraphWidget *>(layout->itemAt(0)->widget())) {
                             firstGraph = visualizationGraphWidget;
                         }
                     }
                     return firstGraph;
                 }
                 void dropGraph(int index, VisualizationZoneWidget *zoneWidget);
                 void dropVariables(const QList<std::shared_ptr<Variable> > &variables, int index,
                                    VisualizationZoneWidget *zoneWidget);
             };
             VisualizationZoneWidget::VisualizationZoneWidget(const QString &name, QWidget *parent)
                     : VisualizationDragWidget{parent},
                       ui{new Ui::VisualizationZoneWidget},
                       impl{spimpl::make_unique_impl<VisualizationZoneWidgetPrivate>()}
             {
                 ui->setupUi(this);
                 ui->zoneNameLabel->setText(name);
                 ui->dragDropContainer->setPlaceHolderType(DragDropHelper::PlaceHolderType::Graph);
                 ui->dragDropContainer->addAcceptedMimeType(
                     MIME_TYPE_GRAPH, VisualizationDragDropContainer::DropBehavior::Inserted);
                 ui->dragDropContainer->addAcceptedMimeType(
                     MIME_TYPE_VARIABLE_LIST, VisualizationDragDropContainer::DropBehavior::InsertedAndMerged);
                 ui->dragDropContainer->addAcceptedMimeType(
                     MIME_TYPE_TIME_RANGE, VisualizationDragDropContainer::DropBehavior::Merged);
                 ui->dragDropContainer->setAcceptMimeDataFunction([this](auto mimeData) {
                     return sqpApp->dragDropHelper().checkMimeDataForVisualization(mimeData,
                                                                                   ui->dragDropContainer);
                 });
                 connect(ui->dragDropContainer, &VisualizationDragDropContainer::dropOccuredInContainer, this,
                         &VisualizationZoneWidget::dropMimeData);
                 connect(ui->dragDropContainer, &VisualizationDragDropContainer::dropOccuredOnWidget, this,
                         &VisualizationZoneWidget::dropMimeDataOnGraph);
                 // 'Close' options : widget is deleted when closed
                 setAttribute(Qt::WA_DeleteOnClose);
                 connect(ui->closeButton, &QToolButton::clicked, this, &VisualizationZoneWidget::close);
                 ui->closeButton->setIcon(sqpApp->style()->standardIcon(QStyle::SP_TitleBarCloseButton));
                 // Synchronisation id
                 QMetaObject::invokeMethod(&sqpApp->variableController(), "onAddSynchronizationGroupId",
                                           Qt::QueuedConnection, Q_ARG(QUuid, impl->m_SynchronisationGroupId));
             }
             VisualizationZoneWidget::~VisualizationZoneWidget()
             {
                 delete ui;
             }
             void VisualizationZoneWidget::addGraph(VisualizationGraphWidget *graphWidget)
             {
                 // Synchronize new graph with others in the zone
                 impl->m_Synchronizer->addGraph(*graphWidget);
                 ui->dragDropContainer->addDragWidget(graphWidget);
             }
             void VisualizationZoneWidget::insertGraph(int index, VisualizationGraphWidget *graphWidget)
             {
                 // Synchronize new graph with others in the zone
                 impl->m_Synchronizer->addGraph(*graphWidget);
                 ui->dragDropContainer->insertDragWidget(index, graphWidget);
             }
             VisualizationGraphWidget *VisualizationZoneWidget::createGraph(std::shared_ptr<Variable> variable)
             {
                 return createGraph(variable, -1);
             }
             VisualizationGraphWidget *VisualizationZoneWidget::createGraph(std::shared_ptr<Variable> variable,
                                                                            int index)
             {
                 auto graphWidget
                     = new VisualizationGraphWidget{defaultGraphName(*ui->dragDropContainer->layout()), this};
                 // Set graph properties
                 graphWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
                 graphWidget->setMinimumHeight(GRAPH_MINIMUM_HEIGHT);
                 // Lambda to synchronize zone widget
                 auto synchronizeZoneWidget = [this, graphWidget](const SqpRange &graphRange,
                                                                  const SqpRange &oldGraphRange) {
                     auto zoomType = VariableController::getZoomType(graphRange, oldGraphRange);
                     auto frameLayout = ui->dragDropContainer->layout();
                     for (auto i = 0; i < frameLayout->count(); ++i) {
                         auto graphChild
                             = dynamic_cast<VisualizationGraphWidget *>(frameLayout->itemAt(i)->widget());
                         if (graphChild && (graphChild != graphWidget)) {
                             auto graphChildRange = graphChild->graphRange();
                             switch (zoomType) {
                                 case AcquisitionZoomType::ZoomIn: {
                                     auto deltaLeft = graphRange.m_TStart - oldGraphRange.m_TStart;
                                     auto deltaRight = oldGraphRange.m_TEnd - graphRange.m_TEnd;
                                     graphChildRange.m_TStart += deltaLeft;
                                     graphChildRange.m_TEnd -= deltaRight;
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: ZoomIn");
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: deltaLeft")
                                                                            << deltaLeft;
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: deltaRight")
                                                                            << deltaRight;
                                     qCDebug(LOG_VisualizationZoneWidget())
                                         << tr("TORM: dt") << graphRange.m_TEnd - graphRange.m_TStart;
                                     break;
                                 }
                                 case AcquisitionZoomType::ZoomOut: {
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: ZoomOut");
                                     auto deltaLeft = oldGraphRange.m_TStart - graphRange.m_TStart;
                                     auto deltaRight = graphRange.m_TEnd - oldGraphRange.m_TEnd;
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: deltaLeft")
                                                                            << deltaLeft;
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: deltaRight")
                                                                            << deltaRight;
                                     qCDebug(LOG_VisualizationZoneWidget())
                                         << tr("TORM: dt") << graphRange.m_TEnd - graphRange.m_TStart;
                                     graphChildRange.m_TStart -= deltaLeft;
                                     graphChildRange.m_TEnd += deltaRight;
                                     break;
                                 }
                                 case AcquisitionZoomType::PanRight: {
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: PanRight");
                                     auto deltaLeft = graphRange.m_TStart - oldGraphRange.m_TStart;
                                     auto deltaRight = graphRange.m_TEnd - oldGraphRange.m_TEnd;
                                     graphChildRange.m_TStart += deltaLeft;
                                     graphChildRange.m_TEnd += deltaRight;
                                     qCDebug(LOG_VisualizationZoneWidget())
                                         << tr("TORM: dt") << graphRange.m_TEnd - graphRange.m_TStart;
                                     break;
                                 }
                                 case AcquisitionZoomType::PanLeft: {
                                     qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: PanLeft");
                                     auto deltaLeft = oldGraphRange.m_TStart - graphRange.m_TStart;
                                     auto deltaRight = oldGraphRange.m_TEnd - graphRange.m_TEnd;
                                     graphChildRange.m_TStart -= deltaLeft;
                                     graphChildRange.m_TEnd -= deltaRight;
                                     break;
                                 }
                                 case AcquisitionZoomType::Unknown: {
                                     qCDebug(LOG_VisualizationZoneWidget())
                                         << tr("Impossible to synchronize: zoom type unknown");
                                     break;
                                 }
                                 default:
                                     qCCritical(LOG_VisualizationZoneWidget())
                                         << tr("Impossible to synchronize: zoom type not take into account");
                                     // No action
                                     break;
                             }
                             graphChild->enableAcquisition(false);
                             qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: Range before: ")
                                                                    << graphChild->graphRange();
                             qCDebug(LOG_VisualizationZoneWidget()) << tr("TORM: Range after : ")
                                                                    << graphChildRange;
                             qCDebug(LOG_VisualizationZoneWidget())
                                 << tr("TORM: child dt") << graphChildRange.m_TEnd - graphChildRange.m_TStart;
                             graphChild->setGraphRange(graphChildRange);
                             graphChild->enableAcquisition(true);
                         }
                     }
                 };
                 // connection for synchronization
                 connect(graphWidget, &VisualizationGraphWidget::synchronize, synchronizeZoneWidget);
                 connect(graphWidget, &VisualizationGraphWidget::variableAdded, this,
                         &VisualizationZoneWidget::onVariableAdded);
                 connect(graphWidget, &VisualizationGraphWidget::variableAboutToBeRemoved, this,
                         &VisualizationZoneWidget::onVariableAboutToBeRemoved);
                 auto range = SqpRange{};
                 if (auto firstGraph = impl->firstGraph(this)) {
                     // Case of a new graph in a existant zone
                     range = firstGraph->graphRange();
                 }
                 else {
                     // Case of a new graph as the first of the zone
                     range = variable->range();
                 }
                 this->insertGraph(index, graphWidget);
                 graphWidget->addVariable(variable, range);
+                graphWidget->setYRange(variable);
-                // get y using variable range
-                if (auto dataSeries = variable->dataSeries()) {
-                    dataSeries->lockRead();
-                    auto valuesBounds
-                        = dataSeries->valuesBounds(variable->range().m_TStart, variable->range().m_TEnd);
-                    auto end = dataSeries->cend();
-                    if (valuesBounds.first != end && valuesBounds.second != end) {
-                        auto rangeValue = [](const auto &value) { return std::isnan(value) ? 0. : value; };
-                        auto minValue = rangeValue(valuesBounds.first->minValue());
-                        auto maxValue = rangeValue(valuesBounds.second->maxValue());
-                        graphWidget->setYRange(SqpRange{minValue, maxValue});
-                    dataSeries->unlock();
                 return graphWidget;
             }
             VisualizationGraphWidget *
             VisualizationZoneWidget::createGraph(const QList<std::shared_ptr<Variable> > variables, int index)
             {
                 if (variables.isEmpty()) {
                     return nullptr;
                 }
                 auto graphWidget = createGraph(variables.first(), index);
                 for (auto variableIt = variables.cbegin() + 1; variableIt != variables.cend(); ++variableIt) {
                     graphWidget->addVariable(*variableIt, graphWidget->graphRange());
                 }
                 return graphWidget;
             }
             void VisualizationZoneWidget::accept(IVisualizationWidgetVisitor *visitor)
             {
                 if (visitor) {
                     visitor->visitEnter(this);
                     // Apply visitor to graph children: widgets different from graphs are not visited (no
                     // action)
                     processGraphs(
                         *ui->dragDropContainer->layout(),
                         [visitor](VisualizationGraphWidget &graphWidget) { graphWidget.accept(visitor); });
                     visitor->visitLeave(this);
                 }
                 else {
                     qCCritical(LOG_VisualizationZoneWidget()) << tr("Can't visit widget : the visitor is null");
                 }
             }
             bool VisualizationZoneWidget::canDrop(const Variable &variable) const
             {
                 // A tab can always accomodate a variable
                 Q_UNUSED(variable);
                 return true;
             }
             bool VisualizationZoneWidget::contains(const Variable &variable) const
             {
                 Q_UNUSED(variable);
                 return false;
             }
             QString VisualizationZoneWidget::name() const
             {
                 return ui->zoneNameLabel->text();
             }
             QMimeData *VisualizationZoneWidget::mimeData() const
             {
                 auto mimeData = new QMimeData;
                 mimeData->setData(MIME_TYPE_ZONE, QByteArray{});
                 return mimeData;
             }
             bool VisualizationZoneWidget::isDragAllowed() const
             {
                 return true;
             }
             void VisualizationZoneWidget::closeEvent(QCloseEvent *event)
             {
                 // Closes graphs in the zone
                 processGraphs(*ui->dragDropContainer->layout(),
                               [](VisualizationGraphWidget &graphWidget) { graphWidget.close(); });
                 // Delete synchronization group from variable controller
                 QMetaObject::invokeMethod(&sqpApp->variableController(), "onRemoveSynchronizationGroupId",
                                           Qt::QueuedConnection, Q_ARG(QUuid, impl->m_SynchronisationGroupId));
                 QWidget::closeEvent(event);
             }
             void VisualizationZoneWidget::onVariableAdded(std::shared_ptr<Variable> variable)
             {
                 QMetaObject::invokeMethod(&sqpApp->variableController(), "onAddSynchronized",
                                           Qt::QueuedConnection, Q_ARG(std::shared_ptr<Variable>, variable),
                                           Q_ARG(QUuid, impl->m_SynchronisationGroupId));
             }
             void VisualizationZoneWidget::onVariableAboutToBeRemoved(std::shared_ptr<Variable> variable)
             {
                 QMetaObject::invokeMethod(&sqpApp->variableController(), "desynchronize", Qt::QueuedConnection,
                                           Q_ARG(std::shared_ptr<Variable>, variable),
                                           Q_ARG(QUuid, impl->m_SynchronisationGroupId));
             }
             void VisualizationZoneWidget::dropMimeData(int index, const QMimeData *mimeData)
             {
                 if (mimeData->hasFormat(MIME_TYPE_GRAPH)) {
                     impl->dropGraph(index, this);
                 }
                 else if (mimeData->hasFormat(MIME_TYPE_VARIABLE_LIST)) {
                     auto variables = sqpApp->variableController().variablesForMimeData(
                         mimeData->data(MIME_TYPE_VARIABLE_LIST));
                     impl->dropVariables(variables, index, this);
                 }
                 else {
                     qCWarning(LOG_VisualizationZoneWidget())
                         << tr("VisualizationZoneWidget::dropMimeData, unknown MIME data received.");
                 }
             }
             void VisualizationZoneWidget::dropMimeDataOnGraph(VisualizationDragWidget *dragWidget,
                                                               const QMimeData *mimeData)
             {
                 auto graphWidget = qobject_cast<VisualizationGraphWidget *>(dragWidget);
                 if (!graphWidget) {
                     qCWarning(LOG_VisualizationZoneWidget())
                         << tr("VisualizationZoneWidget::dropMimeDataOnGraph, dropping in an unknown widget, "
                               "drop aborted");
                     Q_ASSERT(false);
                     return;
                 }
                 if (mimeData->hasFormat(MIME_TYPE_VARIABLE_LIST)) {
                     auto variables = sqpApp->variableController().variablesForMimeData(
                         mimeData->data(MIME_TYPE_VARIABLE_LIST));
                     for (const auto &var : variables) {
                         graphWidget->addVariable(var, graphWidget->graphRange());
                     }
                 }
                 else if (mimeData->hasFormat(MIME_TYPE_TIME_RANGE)) {
                     auto range = TimeController::timeRangeForMimeData(mimeData->data(MIME_TYPE_TIME_RANGE));
                     graphWidget->setGraphRange(range);
                 }
                 else {
                     qCWarning(LOG_VisualizationZoneWidget())
                         << tr("VisualizationZoneWidget::dropMimeDataOnGraph, unknown MIME data received.");
                 }
             }
             void VisualizationZoneWidget::VisualizationZoneWidgetPrivate::dropGraph(
                 int index, VisualizationZoneWidget *zoneWidget)
             {
                 auto &helper = sqpApp->dragDropHelper();
                 auto graphWidget = qobject_cast<VisualizationGraphWidget *>(helper.getCurrentDragWidget());
                 if (!graphWidget) {
                     qCWarning(LOG_VisualizationZoneWidget())
                         << tr("VisualizationZoneWidget::dropGraph, drop aborted, the dropped graph is not "
                               "found or invalid.");
                     Q_ASSERT(false);
                     return;
                 }
                 auto parentDragDropContainer
                     = qobject_cast<VisualizationDragDropContainer *>(graphWidget->parentWidget());
                 if (!parentDragDropContainer) {
                     qCWarning(LOG_VisualizationZoneWidget())
                         << tr("VisualizationZoneWidget::dropGraph, drop aborted, the parent container of "
                               "the dropped graph is not found.");
                     Q_ASSERT(false);
                     return;
                 }
                 const auto &variables = graphWidget->variables();
                 if (parentDragDropContainer != zoneWidget->ui->dragDropContainer && !variables.isEmpty()) {
                     // The drop didn't occur in the same zone
                     // Abort the requests for the variables (if any)
                     // Commented, because it's not sure if it's needed or not
                     // for (const auto& var : variables)
                     //{
                     //    sqpApp->variableController().onAbortProgressRequested(var);
                     //}
                     auto previousParentZoneWidget = graphWidget->parentZoneWidget();
                     auto nbGraph = parentDragDropContainer->countDragWidget();
                     if (nbGraph == 1) {
                         // This is the only graph in the previous zone, close the zone
                         previousParentZoneWidget->close();
                     }
                     else {
                         // Close the graph
                         graphWidget->close();
                     }
                     // Creates the new graph in the zone
                     zoneWidget->createGraph(variables, index);
                 }
                 else {
                     // The drop occurred in the same zone or the graph is empty
                     // Simple move of the graph, no variable operation associated
                     parentDragDropContainer->layout()->removeWidget(graphWidget);
                     if (variables.isEmpty() && parentDragDropContainer != zoneWidget->ui->dragDropContainer) {
                         // The graph is empty and dropped in a different zone.
                         // Take the range of the first graph in the zone (if existing).
                         auto layout = zoneWidget->ui->dragDropContainer->layout();
                         if (layout->count() > 0) {
                             if (auto visualizationGraphWidget
                                 = qobject_cast<VisualizationGraphWidget *>(layout->itemAt(0)->widget())) {
                                 graphWidget->setGraphRange(visualizationGraphWidget->graphRange());
                             }
                         }
                     }
                     zoneWidget->ui->dragDropContainer->insertDragWidget(index, graphWidget);
                 }
             }
             void VisualizationZoneWidget::VisualizationZoneWidgetPrivate::dropVariables(
                 const QList<std::shared_ptr<Variable> > &variables, int index,
                 VisualizationZoneWidget *zoneWidget)
             {
                 // Note: the AcceptMimeDataFunction (set on the drop container) ensure there is a single and
                 // compatible variable here
                 if (variables.count() > 1) {
                     qCWarning(LOG_VisualizationZoneWidget())
                         << tr("VisualizationZoneWidget::dropVariables, dropping multiple variables, operation "
                               "aborted.");
                     return;
                 }
                 zoneWidget->createGraph(variables, index);
             }

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