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#include "Visualization/VisualizationGraphWidget.h"
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#include "Visualization/GraphPlottablesFactory.h"
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#include "Visualization/IVisualizationWidgetVisitor.h"
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#include "ui_VisualizationGraphWidget.h"
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#include <Variable/Variable.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::unordered_map<std::shared_ptr<Variable>, QCPAbstractPlottable *> m_VariableToPlotMap;
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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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// qcpplot title
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ui->widget->plotLayout()->insertRow(0);
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ui->widget->plotLayout()->addElement(0, 0, new QCPTextElement{ui->widget, name});
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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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}
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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 = GraphPlottablesFactory::create(variable, *ui->widget);
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for (auto createdPlottable : qAsConst(createdPlottables)) {
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impl->m_VariableToPlotMap.insert({variable, createdPlottable});
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}
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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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void VisualizationGraphWidget::close()
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{
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// The main view cannot be directly closed.
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return;
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}
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QString VisualizationGraphWidget::name() const
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{
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if (auto title = dynamic_cast<QCPTextElement *>(ui->widget->plotLayout()->elementAt(0))) {
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return title->text();
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}
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else {
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return QString{};
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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 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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