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#include "Visualization/VisualizationGraphWidget.h"
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#include "Visualization/IVisualizationWidgetVisitor.h"
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#include "Visualization/VisualizationGraphHelper.h"
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#include "ui_VisualizationGraphWidget.h"
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#include <Data/ArrayData.h>
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#include <Data/IDataSeries.h>
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#include <SqpApplication.h>
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#include <Variable/Variable.h>
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#include <Variable/VariableController.h>
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#include <unordered_map>
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Q_LOGGING_CATEGORY(LOG_VisualizationGraphWidget, "VisualizationGraphWidget")
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namespace {
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/// Key pressed to enable zoom on horizontal axis
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const auto HORIZONTAL_ZOOM_MODIFIER = Qt::NoModifier;
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/// Key pressed to enable zoom on vertical axis
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const auto VERTICAL_ZOOM_MODIFIER = Qt::ControlModifier;
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} // namespace
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struct VisualizationGraphWidget::VisualizationGraphWidgetPrivate {
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// 1 variable -> n qcpplot
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std::multimap<std::shared_ptr<Variable>, QCPAbstractPlottable *> m_VariableToPlotMultiMap;
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};
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VisualizationGraphWidget::VisualizationGraphWidget(const QString &name, QWidget *parent)
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: QWidget{parent},
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ui{new Ui::VisualizationGraphWidget},
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impl{spimpl::make_unique_impl<VisualizationGraphWidgetPrivate>()}
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{
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ui->setupUi(this);
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ui->graphNameLabel->setText(name);
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// 'Close' options : widget is deleted when closed
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setAttribute(Qt::WA_DeleteOnClose);
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connect(ui->closeButton, &QToolButton::clicked, this, &VisualizationGraphWidget::close);
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ui->closeButton->setIcon(sqpApp->style()->standardIcon(QStyle::SP_TitleBarCloseButton));
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// Set qcpplot properties :
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// - Drag (on x-axis) and zoom are enabled
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// - Mouse wheel on qcpplot is intercepted to determine the zoom orientation
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ui->widget->setInteractions(QCP::iRangeDrag | QCP::iRangeZoom);
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ui->widget->axisRect()->setRangeDrag(Qt::Horizontal);
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connect(ui->widget, &QCustomPlot::mouseWheel, this, &VisualizationGraphWidget::onMouseWheel);
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connect(ui->widget->xAxis, static_cast<void (QCPAxis::*)(const QCPRange &, const QCPRange &)>(
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&QCPAxis::rangeChanged),
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this, &VisualizationGraphWidget::onRangeChanged);
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// Activates menu when right clicking on the graph
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ui->widget->setContextMenuPolicy(Qt::CustomContextMenu);
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connect(ui->widget, &QCustomPlot::customContextMenuRequested, this,
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&VisualizationGraphWidget::onGraphMenuRequested);
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connect(this, &VisualizationGraphWidget::requestDataLoading, &sqpApp->variableController(),
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&VariableController::onRequestDataLoading);
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}
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VisualizationGraphWidget::~VisualizationGraphWidget()
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{
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delete ui;
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}
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void VisualizationGraphWidget::addVariable(std::shared_ptr<Variable> variable)
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{
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// Uses delegate to create the qcpplot components according to the variable
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auto createdPlottables = VisualizationGraphHelper::create(variable, *ui->widget);
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for (auto createdPlottable : qAsConst(createdPlottables)) {
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impl->m_VariableToPlotMultiMap.insert({variable, createdPlottable});
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}
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connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
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}
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void VisualizationGraphWidget::removeVariable(std::shared_ptr<Variable> variable) noexcept
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{
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// Each component associated to the variable :
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// - is removed from qcpplot (which deletes it)
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// - is no longer referenced in the map
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auto componentsIt = impl->m_VariableToPlotMultiMap.equal_range(variable);
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for (auto it = componentsIt.first; it != componentsIt.second;) {
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ui->widget->removePlottable(it->second);
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it = impl->m_VariableToPlotMultiMap.erase(it);
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}
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// Updates graph
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ui->widget->replot();
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}
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void VisualizationGraphWidget::accept(IVisualizationWidgetVisitor *visitor)
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{
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if (visitor) {
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visitor->visit(this);
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}
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else {
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qCCritical(LOG_VisualizationGraphWidget())
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<< tr("Can't visit widget : the visitor is null");
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}
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}
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bool VisualizationGraphWidget::canDrop(const Variable &variable) const
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{
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/// @todo : for the moment, a graph can always accomodate a variable
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Q_UNUSED(variable);
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return true;
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}
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QString VisualizationGraphWidget::name() const
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{
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return ui->graphNameLabel->text();
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}
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void VisualizationGraphWidget::onGraphMenuRequested(const QPoint &pos) noexcept
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{
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QMenu graphMenu{};
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// Iterates on variables (unique keys)
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for (auto it = impl->m_VariableToPlotMultiMap.cbegin(),
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end = impl->m_VariableToPlotMultiMap.cend();
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it != end; it = impl->m_VariableToPlotMultiMap.upper_bound(it->first)) {
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// 'Remove variable' action
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graphMenu.addAction(tr("Remove variable %1").arg(it->first->name()),
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[ this, var = it->first ]() { removeVariable(var); });
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}
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if (!graphMenu.isEmpty()) {
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graphMenu.exec(mapToGlobal(pos));
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}
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}
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void VisualizationGraphWidget::onRangeChanged(const QCPRange &t1, const QCPRange &t2)
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{
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qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::onRangeChanged");
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for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
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it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
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auto variable = it->first;
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auto dateTime = SqpDateTime{t2.lower, t2.upper};
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if (!variable->contains(dateTime)) {
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auto variableDateTimeWithTolerance = dateTime;
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if (variable->intersect(dateTime)) {
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auto variableDateTime = variable->dateTime();
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if (variableDateTime.m_TStart < dateTime.m_TStart) {
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auto diffEndToKeepDelta = dateTime.m_TEnd - variableDateTime.m_TEnd;
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dateTime.m_TStart = variableDateTime.m_TStart + diffEndToKeepDelta;
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// Tolerance have to be added to the right
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// add 10% tolerance for right (end) side
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auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
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variableDateTimeWithTolerance.m_TEnd += tolerance;
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}
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if (variableDateTime.m_TEnd > dateTime.m_TEnd) {
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auto diffStartToKeepDelta = variableDateTime.m_TStart - dateTime.m_TStart;
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dateTime.m_TEnd = variableDateTime.m_TEnd - diffStartToKeepDelta;
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// Tolerance have to be added to the left
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// add 10% tolerance for left (start) side
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auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
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variableDateTimeWithTolerance.m_TStart -= tolerance;
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}
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}
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else {
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// add 10% tolerance for each side
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auto tolerance = 0.1 * (dateTime.m_TEnd - dateTime.m_TStart);
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variableDateTimeWithTolerance.m_TStart -= tolerance;
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variableDateTimeWithTolerance.m_TEnd += tolerance;
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}
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variable->setDateTime(dateTime);
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// CHangement detected, we need to ask controller to request data loading
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emit requestDataLoading(variable, variableDateTimeWithTolerance);
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}
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}
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}
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void VisualizationGraphWidget::onMouseWheel(QWheelEvent *event) noexcept
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{
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auto zoomOrientations = QFlags<Qt::Orientation>{};
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// Lambda that enables a zoom orientation if the key modifier related to this orientation
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// has
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// been pressed
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auto enableOrientation
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= [&zoomOrientations, event](const auto &orientation, const auto &modifier) {
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auto orientationEnabled = event->modifiers().testFlag(modifier);
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zoomOrientations.setFlag(orientation, orientationEnabled);
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};
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enableOrientation(Qt::Vertical, VERTICAL_ZOOM_MODIFIER);
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enableOrientation(Qt::Horizontal, HORIZONTAL_ZOOM_MODIFIER);
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ui->widget->axisRect()->setRangeZoom(zoomOrientations);
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}
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void VisualizationGraphWidget::onDataCacheVariableUpdated()
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{
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// NOTE:
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// We don't want to call the method for each component of a variable unitarily, but for
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// all
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// its components at once (eg its three components in the case of a vector).
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// The unordered_multimap does not do this easily, so the question is whether to:
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// - use an ordered_multimap and the algos of std to group the values by key
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// - use a map (unique keys) and store as values directly the list of components
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for (auto it = impl->m_VariableToPlotMultiMap.cbegin();
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it != impl->m_VariableToPlotMultiMap.cend(); ++it) {
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auto variable = it->first;
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VisualizationGraphHelper::updateData(QVector<QCPAbstractPlottable *>{} << it->second,
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variable->dataSeries(), variable->dateTime());
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}
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}
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void VisualizationGraphWidget::updateDisplay(std::shared_ptr<Variable> variable)
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{
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auto abstractPlotableItPair = impl->m_VariableToPlotMultiMap.equal_range(variable);
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auto abstractPlotableVect = QVector<QCPAbstractPlottable *>{};
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for (auto it = abstractPlotableItPair.first; it != abstractPlotableItPair.second; ++it) {
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abstractPlotableVect.push_back(it->second);
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}
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VisualizationGraphHelper::updateData(abstractPlotableVect, variable->dataSeries(),
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variable->dateTime());
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}
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