GIT_REPOSITORIES/LPP/Users/mperrinel/SciQLop-fork Commit - r327:87af69bdce8a

Unplot menu (5): adds contains() method to an IVariableContainer...

Alexandre Leroux -

r327:87af69bdce8a

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gui/include/Visualization/IVariableContainer.h +3 0

             #ifndef SCIQLOP_IVARIABLECONTAINER_H
             #define SCIQLOP_IVARIABLECONTAINER_H
             class Variable;
             /**
              * @brief The IVariableContainer interface represents an UI object that can accommodate a variable
              */
             class IVariableContainer {
             public:
                 virtual ~IVariableContainer() = default;
                 /// Checks if the container can handle the variable passed in parameter
                 virtual bool canDrop(const Variable &variable) const = 0;
+                /// Checks if the container contains the variable passed in parameter
+                virtual bool contains(const Variable &variable) const = 0;
             };
             #endif // SCIQLOP_IVARIABLECONTAINER_H

gui/include/Visualization/VisualizationGraphWidget.h +1 0

             #ifndef SCIQLOP_VISUALIZATIONGRAPHWIDGET_H
             #define SCIQLOP_VISUALIZATIONGRAPHWIDGET_H
             #include "Visualization/IVisualizationWidget.h"
             #include <QLoggingCategory>
             #include <QWidget>
             #include <memory>
             #include <Common/spimpl.h>
             Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationGraphWidget)
             class QCPRange;
             class SqpDateTime;
             class Variable;
             namespace Ui {
             class VisualizationGraphWidget;
             } // namespace Ui
             class VisualizationGraphWidget : public QWidget, public IVisualizationWidget {
                 Q_OBJECT
             public:
                 explicit VisualizationGraphWidget(const QString &name = {}, QWidget *parent = 0);
                 virtual ~VisualizationGraphWidget();
                 void addVariable(std::shared_ptr<Variable> variable);
                 void addVariableUsingGraph(std::shared_ptr<Variable> variable);
                 /// Removes a variable from the graph
                 void removeVariable(std::shared_ptr<Variable> variable) noexcept;
                 // 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;
                 void updateDisplay(std::shared_ptr<Variable> variable);
             signals:
                 void requestDataLoading(std::shared_ptr<Variable> variable, const SqpDateTime &dateTime);
             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;
                 void onRangeChanged(const QCPRange &t1);
                 /// Slot called when a mouse wheel was made, to perform some processing before the zoom is done
                 void onMouseWheel(QWheelEvent *event) noexcept;
                 void onDataCacheVariableUpdated();
             };
             #endif // SCIQLOP_VISUALIZATIONGRAPHWIDGET_H

gui/include/Visualization/VisualizationTabWidget.h +1 0

             #ifndef SCIQLOP_VISUALIZATIONTABWIDGET_H
             #define SCIQLOP_VISUALIZATIONTABWIDGET_H
             #include "Visualization/IVisualizationWidget.h"
             #include <Common/spimpl.h>
             #include <QLoggingCategory>
             #include <QWidget>
             Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationTabWidget)
             class Variable;
             class VisualizationZoneWidget;
             namespace Ui {
             class VisualizationTabWidget;
             } // namespace Ui
             class VisualizationTabWidget : public QWidget, public IVisualizationWidget {
                 Q_OBJECT
             public:
                 explicit VisualizationTabWidget(const QString &name = {}, QWidget *parent = 0);
                 virtual ~VisualizationTabWidget();
                 /// Add a zone widget
                 void addZone(VisualizationZoneWidget *zoneWidget);
                 /**
                  * Creates a zone using a variable. The variable will be displayed in a new graph of the new
                  * zone.
                  * @param variable the variable for which to create the zone
                  * @return the pointer to the created zone
                  */
                 VisualizationZoneWidget *createZone(std::shared_ptr<Variable> variable);
                 // 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;
             private:
                 /// @return the layout of tab in which zones are added
                 QLayout &tabLayout() const noexcept;
                 Ui::VisualizationTabWidget *ui;
                 class VisualizationTabWidgetPrivate;
                 spimpl::unique_impl_ptr<VisualizationTabWidgetPrivate> impl;
             };
             #endif // SCIQLOP_VISUALIZATIONTABWIDGET_H

gui/include/Visualization/VisualizationWidget.h +1 0

             #ifndef SCIQLOP_VISUALIZATIONWIDGET_H
             #define SCIQLOP_VISUALIZATIONWIDGET_H
             #include "Visualization/IVisualizationWidget.h"
             #include <QLoggingCategory>
             #include <QWidget>
             Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationWidget)
             class QMenu;
             class Variable;
             class VisualizationTabWidget;
             namespace Ui {
             class VisualizationWidget;
             } // namespace Ui
             class VisualizationWidget : public QWidget, public IVisualizationWidget {
                 Q_OBJECT
             public:
                 explicit VisualizationWidget(QWidget *parent = 0);
                 virtual ~VisualizationWidget();
                 // 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;
             public slots:
                 /**
                  * Attaches to a menu the menu relative to the visualization of variables
                  * @param menu the parent menu of the generated menu
                  * @param variables the variables for which to generate the menu
                  */
                 void attachVariableMenu(QMenu *menu,
                                         const QVector<std::shared_ptr<Variable> > &variables) noexcept;
             private:
                 Ui::VisualizationWidget *ui;
             };
             #endif // VISUALIZATIONWIDGET_H

gui/include/Visualization/VisualizationZoneWidget.h +1 0

             #ifndef SCIQLOP_VISUALIZATIONZONEWIDGET_H
             #define SCIQLOP_VISUALIZATIONZONEWIDGET_H
             #include "Visualization/IVisualizationWidget.h"
             #include <QLoggingCategory>
             #include <QWidget>
             Q_DECLARE_LOGGING_CATEGORY(LOG_VisualizationZoneWidget)
             namespace Ui {
             class VisualizationZoneWidget;
             } // Ui
             class Variable;
             class VisualizationGraphWidget;
             class VisualizationZoneWidget : public QWidget, public IVisualizationWidget {
                 Q_OBJECT
             public:
                 explicit VisualizationZoneWidget(const QString &name = {}, QWidget *parent = 0);
                 virtual ~VisualizationZoneWidget();
                 /// Add a graph widget
                 void addGraph(VisualizationGraphWidget *graphWidget);
                 /**
                  * Creates a graph using a variable. The variable will be displayed in the new graph.
                  * @param variable the variable for which to create the graph
                  * @return the pointer to the created graph
                  */
                 VisualizationGraphWidget *createGraph(std::shared_ptr<Variable> variable);
                 // 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;
             private:
                 Ui::VisualizationZoneWidget *ui;
             };
             #endif // SCIQLOP_VISUALIZATIONZONEWIDGET_H

gui/src/Visualization/VisualizationGraphWidget.cpp +12 0

             #include "Visualization/VisualizationGraphWidget.h"
             #include "Visualization/IVisualizationWidgetVisitor.h"
             #include "Visualization/VisualizationGraphHelper.h"
             #include "ui_VisualizationGraphWidget.h"
             #include <Data/ArrayData.h>
             #include <Data/IDataSeries.h>
             #include <SqpApplication.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 {
                 // 1 variable -> n qcpplot
                 std::multimap<std::shared_ptr<Variable>, QCPAbstractPlottable *> m_VariableToPlotMultiMap;
             };
             VisualizationGraphWidget::VisualizationGraphWidget(const QString &name, QWidget *parent)
                     : QWidget{parent},
                       ui{new Ui::VisualizationGraphWidget},
                       impl{spimpl::make_unique_impl<VisualizationGraphWidgetPrivate>()}
             {
                 ui->setupUi(this);
                 ui->graphNameLabel->setText(name);
                 // 'Close' options : widget is deleted when closed
                 setAttribute(Qt::WA_DeleteOnClose);
                 connect(ui->closeButton, &QToolButton::clicked, this, &VisualizationGraphWidget::close);
                 ui->closeButton->setIcon(sqpApp->style()->standardIcon(QStyle::SP_TitleBarCloseButton));
                 // 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);
                 ui->widget->axisRect()->setRangeDrag(Qt::Horizontal);
                 connect(ui->widget, &QCustomPlot::mouseWheel, this, &VisualizationGraphWidget::onMouseWheel);
                 connect(ui->widget->xAxis,
                         static_cast<void (QCPAxis::*)(const QCPRange &)>(&QCPAxis::rangeChanged), this,
                         &VisualizationGraphWidget::onRangeChanged);
                 // 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);
             }
             VisualizationGraphWidget::~VisualizationGraphWidget()
             {
                 delete ui;
             }
             void VisualizationGraphWidget::addVariable(std::shared_ptr<Variable> variable)
             {
                 // Uses delegate to create the qcpplot components according to the variable
                 auto createdPlottables = VisualizationGraphHelper::create(variable, *ui->widget);
                 for (auto createdPlottable : qAsConst(createdPlottables)) {
                     impl->m_VariableToPlotMultiMap.insert({variable, createdPlottable});
                 }
                 connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
             }
             void VisualizationGraphWidget::addVariableUsingGraph(std::shared_ptr<Variable> variable)
             {
                 // when adding a variable, we need to set its time range to the current graph range
                 auto grapheRange = ui->widget->xAxis->range();
                 auto dateTime = SqpDateTime{grapheRange.lower, grapheRange.upper};
                 variable->setDateTime(dateTime);
                 auto variableDateTimeWithTolerance = dateTime;
                 // add 10% tolerance for each side
                 auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
                 variableDateTimeWithTolerance.m_TStart -= tolerance;
                 variableDateTimeWithTolerance.m_TEnd += tolerance;
                 // Uses delegate to create the qcpplot components according to the variable
                 auto createdPlottables = VisualizationGraphHelper::create(variable, *ui->widget);
                 for (auto createdPlottable : qAsConst(createdPlottables)) {
                     impl->m_VariableToPlotMultiMap.insert({variable, createdPlottable});
                 }
                 connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
                 // CHangement detected, we need to ask controller to request data loading
                 emit requestDataLoading(variable, variableDateTimeWithTolerance);
             }
             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 componentsIt = impl->m_VariableToPlotMultiMap.equal_range(variable);
                 for (auto it = componentsIt.first; it != componentsIt.second;) {
                     ui->widget->removePlottable(it->second);
                     it = impl->m_VariableToPlotMultiMap.erase(it);
                 }
                 // Updates graph
                 ui->widget->replot();
             }
             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 ui->graphNameLabel->text();
             }
             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(mapToGlobal(pos));
                 }
             }
             void VisualizationGraphWidget::onRangeChanged(const QCPRange &t1)
             {
                 qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::onRangeChanged");
                 for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
                      it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
                     auto variable = it->first;
                     auto dateTime = SqpDateTime{t1.lower, t1.upper};
                     if (!variable->contains(dateTime)) {
                         auto variableDateTimeWithTolerance = dateTime;
                         if (!variable->isInside(dateTime)) {
                             auto variableDateTime = variable->dateTime();
                             if (variableDateTime.m_TStart < dateTime.m_TStart) {
                                 qCDebug(LOG_VisualizationGraphWidget()) << tr("TDetection pan to right:");
                                 auto diffEndToKeepDelta = dateTime.m_TEnd - variableDateTime.m_TEnd;
                                 dateTime.m_TStart = variableDateTime.m_TStart + diffEndToKeepDelta;
                                 // Tolerance have to be added to the right
                                 // add 10% tolerance for right (end) side
                                 auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
                                 variableDateTimeWithTolerance.m_TEnd += tolerance;
                             }
                             else if (variableDateTime.m_TEnd > dateTime.m_TEnd) {
                                 qCDebug(LOG_VisualizationGraphWidget()) << tr("Detection pan to left: ");
                                 auto diffStartToKeepDelta = variableDateTime.m_TStart - dateTime.m_TStart;
                                 dateTime.m_TEnd = variableDateTime.m_TEnd - diffStartToKeepDelta;
                                 // Tolerance have to be added to the left
                                 // add 10% tolerance for left (start) side
                                 auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
                                 variableDateTimeWithTolerance.m_TStart -= tolerance;
                             }
                             else {
                                 qCWarning(LOG_VisualizationGraphWidget())
                                     << tr("Detection anormal zoom detection: ");
                             }
                         }
                         else {
                             qCDebug(LOG_VisualizationGraphWidget()) << tr("Detection zoom out: ");
                             // add 10% tolerance for each side
                             auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
                             variableDateTimeWithTolerance.m_TStart -= tolerance;
                             variableDateTimeWithTolerance.m_TEnd += tolerance;
                         }
                         variable->setDateTime(dateTime);
                         // CHangement detected, we need to ask controller to request data loading
                         emit requestDataLoading(variable, variableDateTimeWithTolerance);
                     }
                     else {
                         qCDebug(LOG_VisualizationGraphWidget()) << tr("Detection zoom in: ");
                     }
                 }
             }
             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::onDataCacheVariableUpdated()
             {
                 // NOTE:
                 //    We don't want to call the method for each component of a variable unitarily, but for
                 //    all
                 //    its components at once (eg its three components in the case of a vector).
                 //    The unordered_multimap does not do this easily, so the question is whether to:
                 //    - use an ordered_multimap and the algos of std to group the values by key
                 //    - use a map (unique keys) and store as values directly the list of components
                 for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
                      it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
                     auto variable = it->first;
                     VisualizationGraphHelper::updateData(QVector<QCPAbstractPlottable *>{} << it->second,
                                                          variable->dataSeries(), variable->dateTime());
                 }
             }
             void VisualizationGraphWidget::updateDisplay(std::shared_ptr<Variable> variable)
             {
                 auto abstractPlotableItPair = impl->m_VariableToPlotMultiMap.equal_range(variable);
                 auto abstractPlotableVect = QVector<QCPAbstractPlottable *>{};
                 for (auto it = abstractPlotableItPair.first; it != abstractPlotableItPair.second; ++it) {
                     abstractPlotableVect.push_back(it->second);
                 }
                 VisualizationGraphHelper::updateData(abstractPlotableVect, variable->dataSeries(),
                                                      variable->dateTime());
             }

gui/src/Visualization/VisualizationTabWidget.cpp +6 0

             #include "Visualization/VisualizationTabWidget.h"
             #include "Visualization/IVisualizationWidgetVisitor.h"
             #include "ui_VisualizationTabWidget.h"
             #include "Visualization/VisualizationZoneWidget.h"
             Q_LOGGING_CATEGORY(LOG_VisualizationTabWidget, "VisualizationTabWidget")
             namespace {
             /// Generates a default name for a new zone, according to the number of zones already displayed in
             /// the tab
             QString defaultZoneName(const QLayout &layout)
             {
                 auto count = 0;
                 for (auto i = 0; i < layout.count(); ++i) {
                     if (dynamic_cast<VisualizationZoneWidget *>(layout.itemAt(i)->widget())) {
                         count++;
                     }
                 }
                 return QObject::tr("Zone %1").arg(count + 1);
             }
             } // namespace
             struct VisualizationTabWidget::VisualizationTabWidgetPrivate {
                 explicit VisualizationTabWidgetPrivate(const QString &name) : m_Name{name} {}
                 QString m_Name;
             };
             VisualizationTabWidget::VisualizationTabWidget(const QString &name, QWidget *parent)
                     : QWidget{parent},
                       ui{new Ui::VisualizationTabWidget},
                       impl{spimpl::make_unique_impl<VisualizationTabWidgetPrivate>(name)}
             {
                 ui->setupUi(this);
                 // Widget is deleted when closed
                 setAttribute(Qt::WA_DeleteOnClose);
             }
             VisualizationTabWidget::~VisualizationTabWidget()
             {
                 delete ui;
             }
             void VisualizationTabWidget::addZone(VisualizationZoneWidget *zoneWidget)
             {
                 tabLayout().addWidget(zoneWidget);
             }
             VisualizationZoneWidget *VisualizationTabWidget::createZone(std::shared_ptr<Variable> variable)
             {
                 auto zoneWidget = new VisualizationZoneWidget{defaultZoneName(tabLayout()), this};
                 this->addZone(zoneWidget);
                 // Creates a new graph into the zone
                 zoneWidget->createGraph(variable);
                 return zoneWidget;
             }
             void VisualizationTabWidget::accept(IVisualizationWidgetVisitor *visitor)
             {
                 if (visitor) {
                     visitor->visitEnter(this);
                     // Apply visitor to zone children
                     auto &layout = tabLayout();
                     for (auto i = 0; i < layout.count(); ++i) {
                         if (auto item = layout.itemAt(i)) {
                             // Widgets different from zones are not visited (no action)
                             if (auto visualizationZoneWidget
                                 = dynamic_cast<VisualizationZoneWidget *>(item->widget())) {
                                 visualizationZoneWidget->accept(visitor);
                             }
                         }
                     }
                     visitor->visitLeave(this);
                 }
                 else {
                     qCCritical(LOG_VisualizationTabWidget()) << tr("Can't visit widget : the visitor is null");
                 }
             }
             bool VisualizationTabWidget::canDrop(const Variable &variable) const
             {
                 // A tab can always accomodate a variable
                 Q_UNUSED(variable);
                 return true;
             }
+            bool VisualizationTabWidget::contains(const Variable &variable) const
+            {
+                Q_UNUSED(variable);
+                return false;
+            }
             QString VisualizationTabWidget::name() const
             {
                 return impl->m_Name;
             }
             QLayout &VisualizationTabWidget::tabLayout() const noexcept
             {
                 return *ui->scrollAreaWidgetContents->layout();
             }

gui/src/Visualization/VisualizationWidget.cpp +6 0

             #include "Visualization/VisualizationWidget.h"
             #include "Visualization/IVisualizationWidgetVisitor.h"
             #include "Visualization/VisualizationGraphWidget.h"
             #include "Visualization/VisualizationTabWidget.h"
             #include "Visualization/VisualizationZoneWidget.h"
             #include "Visualization/operations/GenerateVariableMenuOperation.h"
             #include "Visualization/qcustomplot.h"
             #include "ui_VisualizationWidget.h"
             #include <QToolButton>
             Q_LOGGING_CATEGORY(LOG_VisualizationWidget, "VisualizationWidget")
             VisualizationWidget::VisualizationWidget(QWidget *parent)
                     : QWidget{parent}, ui{new Ui::VisualizationWidget}
             {
                 ui->setupUi(this);
                 auto addTabViewButton = new QToolButton{ui->tabWidget};
                 addTabViewButton->setText(tr("Add View"));
                 addTabViewButton->setCursor(Qt::ArrowCursor);
                 ui->tabWidget->setCornerWidget(addTabViewButton, Qt::TopRightCorner);
                 auto enableMinimumCornerWidgetSize = [this](bool enable) {
                     auto tabViewCornerWidget = ui->tabWidget->cornerWidget();
                     auto width = enable ? tabViewCornerWidget->width() : 0;
                     auto height = enable ? tabViewCornerWidget->height() : 0;
                     tabViewCornerWidget->setMinimumHeight(height);
                     tabViewCornerWidget->setMinimumWidth(width);
                     ui->tabWidget->setMinimumHeight(height);
                     ui->tabWidget->setMinimumWidth(width);
                 };
                 auto addTabView = [this, enableMinimumCornerWidgetSize]() {
                     auto widget = new VisualizationTabWidget{QString{"View %1"}.arg(ui->tabWidget->count() + 1),
                                                              ui->tabWidget};
                     auto index = ui->tabWidget->addTab(widget, widget->name());
                     if (ui->tabWidget->count() > 0) {
                         enableMinimumCornerWidgetSize(false);
                     }
                     qCInfo(LOG_VisualizationWidget()) << tr("add the tab of index %1").arg(index);
                 };
                 auto removeTabView = [this, enableMinimumCornerWidgetSize](int index) {
                     if (ui->tabWidget->count() == 1) {
                         enableMinimumCornerWidgetSize(true);
                     }
                     // Removes widget from tab and closes it
                     auto widget = ui->tabWidget->widget(index);
                     ui->tabWidget->removeTab(index);
                     if (widget) {
                         widget->close();
                     }
                     qCInfo(LOG_VisualizationWidget()) << tr("remove the tab of index %1").arg(index);
                 };
                 ui->tabWidget->setTabsClosable(true);
                 connect(addTabViewButton, &QToolButton::clicked, addTabView);
                 connect(ui->tabWidget, &QTabWidget::tabCloseRequested, removeTabView);
                 // Adds default tab
                 addTabView();
             }
             VisualizationWidget::~VisualizationWidget()
             {
                 delete ui;
             }
             void VisualizationWidget::accept(IVisualizationWidgetVisitor *visitor)
             {
                 if (visitor) {
                     visitor->visitEnter(this);
                     // Apply visitor for tab children
                     for (auto i = 0; i < ui->tabWidget->count(); ++i) {
                         // Widgets different from tabs are not visited (no action)
                         if (auto visualizationTabWidget
                             = dynamic_cast<VisualizationTabWidget *>(ui->tabWidget->widget(i))) {
                             visualizationTabWidget->accept(visitor);
                         }
                     }
                     visitor->visitLeave(this);
                 }
                 else {
                     qCCritical(LOG_VisualizationWidget()) << tr("Can't visit widget : the visitor is null");
                 }
             }
             bool VisualizationWidget::canDrop(const Variable &variable) const
             {
                 // The main widget can never accomodate a variable
                 Q_UNUSED(variable);
                 return false;
             }
+            bool VisualizationWidget::contains(const Variable &variable) const
+            {
+                Q_UNUSED(variable);
+                return false;
+            }
             QString VisualizationWidget::name() const
             {
                 return QStringLiteral("MainView");
             }
             void VisualizationWidget::attachVariableMenu(
                 QMenu *menu, const QVector<std::shared_ptr<Variable> > &variables) noexcept
             {
                 // Menu is generated only if there is a single variable
                 if (variables.size() == 1) {
                     if (auto variable = variables.first()) {
                         // Generates the actions that make it possible to visualize the variable
                         auto generateVariableMenuOperation = GenerateVariableMenuOperation{menu, variable};
                         accept(&generateVariableMenuOperation);
                     }
                     else {
                         qCCritical(LOG_VisualizationWidget()) << tr(
                             "Can't generate the menu relative to the visualization: the variable is null");
                     }
                 }
                 else {
                     qCDebug(LOG_VisualizationWidget())
                         << tr("No generation of the menu related to the visualization: several variables are "
                               "selected");
                 }
             }

gui/src/Visualization/VisualizationZoneWidget.cpp +6 0

             #include "Visualization/VisualizationZoneWidget.h"
             #include "Visualization/IVisualizationWidgetVisitor.h"
             #include "ui_VisualizationZoneWidget.h"
             #include "Visualization/VisualizationGraphWidget.h"
             #include <SqpApplication.h>
             Q_LOGGING_CATEGORY(LOG_VisualizationZoneWidget, "VisualizationZoneWidget")
             namespace {
             /// Minimum height for graph added in zones (in pixels)
             const auto GRAPH_MINIMUM_HEIGHT = 300;
             /// 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);
             }
             } // namespace
             VisualizationZoneWidget::VisualizationZoneWidget(const QString &name, QWidget *parent)
                     : QWidget{parent}, ui{new Ui::VisualizationZoneWidget}
             {
                 ui->setupUi(this);
                 ui->zoneNameLabel->setText(name);
                 // '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));
             }
             VisualizationZoneWidget::~VisualizationZoneWidget()
             {
                 delete ui;
             }
             void VisualizationZoneWidget::addGraph(VisualizationGraphWidget *graphWidget)
             {
                 ui->visualizationZoneFrame->layout()->addWidget(graphWidget);
             }
             VisualizationGraphWidget *VisualizationZoneWidget::createGraph(std::shared_ptr<Variable> variable)
             {
                 auto graphWidget = new VisualizationGraphWidget{
                     defaultGraphName(*ui->visualizationZoneFrame->layout()), this};
                 // Set graph properties
                 graphWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
                 graphWidget->setMinimumHeight(GRAPH_MINIMUM_HEIGHT);
                 this->addGraph(graphWidget);
                 graphWidget->addVariable(variable);
                 return graphWidget;
             }
             void VisualizationZoneWidget::accept(IVisualizationWidgetVisitor *visitor)
             {
                 if (visitor) {
                     visitor->visitEnter(this);
                     // Apply visitor to graph children
                     auto layout = ui->visualizationZoneFrame->layout();
                     for (auto i = 0; i < layout->count(); ++i) {
                         if (auto item = layout->itemAt(i)) {
                             // Widgets different from graphs are not visited (no action)
                             if (auto visualizationGraphWidget
                                 = dynamic_cast<VisualizationGraphWidget *>(item->widget())) {
                                 visualizationGraphWidget->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();
             }

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