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#include "Visualization/VisualizationGraphWidget.h"
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#include "Visualization/IVisualizationWidgetVisitor.h"
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#include "Visualization/VisualizationDefs.h"
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#include "Visualization/VisualizationGraphHelper.h"
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#include "Visualization/VisualizationGraphRenderingDelegate.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 <Settings/SqpSettingsDefs.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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explicit VisualizationGraphWidgetPrivate(const QString &name)
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: m_Name{name},
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m_DoAcquisition{true},
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m_IsCalibration{false},
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m_RenderingDelegate{nullptr}
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{
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}
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QString m_Name;
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// 1 variable -> n qcpplot
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std::map<std::shared_ptr<Variable>, PlottablesMap> m_VariableToPlotMultiMap;
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bool m_DoAcquisition;
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bool m_IsCalibration;
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QCPItemTracer *m_TextTracer;
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/// Delegate used to attach rendering features to the plot
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std::unique_ptr<VisualizationGraphRenderingDelegate> m_RenderingDelegate;
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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>(name)}
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{
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ui->setupUi(this);
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// 'Close' options : widget is deleted when closed
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setAttribute(Qt::WA_DeleteOnClose);
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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 | QCP::iSelectItems);
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ui->widget->axisRect()->setRangeDrag(Qt::Horizontal);
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// The delegate must be initialized after the ui as it uses the plot
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impl->m_RenderingDelegate = std::make_unique<VisualizationGraphRenderingDelegate>(*this);
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connect(ui->widget, &QCustomPlot::mousePress, this, &VisualizationGraphWidget::onMousePress);
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connect(ui->widget, &QCustomPlot::mouseRelease, this,
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&VisualizationGraphWidget::onMouseRelease);
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connect(ui->widget, &QCustomPlot::mouseMove, this, &VisualizationGraphWidget::onMouseMove);
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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, Qt::DirectConnection);
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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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connect(&sqpApp->variableController(), &VariableController::updateVarDisplaying, this,
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&VisualizationGraphWidget::onUpdateVarDisplaying);
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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::enableAcquisition(bool enable)
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{
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impl->m_DoAcquisition = enable;
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}
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void VisualizationGraphWidget::addVariable(std::shared_ptr<Variable> variable, SqpRange range)
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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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impl->m_VariableToPlotMultiMap.insert({variable, std::move(createdPlottables)});
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// Set axes properties according to the units of the data series
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/// @todo : for the moment, no control is performed on the axes: the units and the tickers
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/// are fixed for the default x-axis and y-axis of the plot, and according to the new graph
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auto xAxisUnit = Unit{};
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auto valuesUnit = Unit{};
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if (auto dataSeries = variable->dataSeries()) {
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dataSeries->lockRead();
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xAxisUnit = dataSeries->xAxisUnit();
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valuesUnit = dataSeries->valuesUnit();
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dataSeries->unlock();
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}
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impl->m_RenderingDelegate->setAxesProperties(xAxisUnit, valuesUnit);
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connect(variable.get(), SIGNAL(updated()), this, SLOT(onDataCacheVariableUpdated()));
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auto varRange = variable->range();
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this->enableAcquisition(false);
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this->setGraphRange(range);
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this->enableAcquisition(true);
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emit requestDataLoading(QVector<std::shared_ptr<Variable> >() << variable, range, varRange,
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false);
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emit variableAdded(variable);
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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 variableIt = impl->m_VariableToPlotMultiMap.find(variable);
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if (variableIt != impl->m_VariableToPlotMultiMap.cend()) {
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emit variableAboutToBeRemoved(variable);
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auto &plottablesMap = variableIt->second;
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for (auto plottableIt = plottablesMap.cbegin(), plottableEnd = plottablesMap.cend();
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plottableIt != plottableEnd;) {
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ui->widget->removePlottable(plottableIt->second);
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plottableIt = plottablesMap.erase(plottableIt);
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}
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impl->m_VariableToPlotMultiMap.erase(variableIt);
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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::setRange(std::shared_ptr<Variable> variable, const SqpRange &range)
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{
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// Note: in case of different axes that depends on variable, we could start with a code like
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// that:
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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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// }
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ui->widget->xAxis->setRange(range.m_TStart, range.m_TEnd);
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ui->widget->replot();
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}
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void VisualizationGraphWidget::setYRange(const SqpRange &range)
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{
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ui->widget->yAxis->setRange(range.m_TStart, range.m_TEnd);
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}
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SqpRange VisualizationGraphWidget::graphRange() const noexcept
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{
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auto graphRange = ui->widget->xAxis->range();
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return SqpRange{graphRange.lower, graphRange.upper};
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}
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void VisualizationGraphWidget::setGraphRange(const SqpRange &range)
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{
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qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::setGraphRange START");
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ui->widget->xAxis->setRange(range.m_TStart, range.m_TEnd);
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ui->widget->replot();
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qCDebug(LOG_VisualizationGraphWidget()) << tr("VisualizationGraphWidget::setGraphRange END");
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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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bool VisualizationGraphWidget::contains(const Variable &variable) const
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{
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// Finds the variable among the keys of the map
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auto variablePtr = &variable;
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auto findVariable
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= [variablePtr](const auto &entry) { return variablePtr == entry.first.get(); };
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auto end = impl->m_VariableToPlotMultiMap.cend();
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auto it = std::find_if(impl->m_VariableToPlotMultiMap.cbegin(), end, findVariable);
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return it != end;
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}
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QString VisualizationGraphWidget::name() const
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{
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return impl->m_Name;
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}
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void VisualizationGraphWidget::closeEvent(QCloseEvent *event)
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{
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Q_UNUSED(event);
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// Prevents that all variables will be removed from graph when it will be closed
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for (auto &variableEntry : impl->m_VariableToPlotMultiMap) {
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emit variableAboutToBeRemoved(variableEntry.first);
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}
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}
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void VisualizationGraphWidget::enterEvent(QEvent *event)
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{
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Q_UNUSED(event);
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impl->m_RenderingDelegate->showGraphOverlay(true);
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}
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void VisualizationGraphWidget::leaveEvent(QEvent *event)
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{
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Q_UNUSED(event);
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impl->m_RenderingDelegate->showGraphOverlay(false);
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}
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QCustomPlot &VisualizationGraphWidget::plot() noexcept
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{
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return *ui->widget;
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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(QCursor::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("TORM: VisualizationGraphWidget::onRangeChanged")
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<< QThread::currentThread()->objectName() << "DoAcqui"
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<< impl->m_DoAcquisition;
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auto graphRange = SqpRange{t1.lower, t1.upper};
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auto oldGraphRange = SqpRange{t2.lower, t2.upper};
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if (impl->m_DoAcquisition) {
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QVector<std::shared_ptr<Variable> > variableUnderGraphVector;
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for (auto it = impl->m_VariableToPlotMultiMap.begin(),
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end = impl->m_VariableToPlotMultiMap.end();
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it != end; it = impl->m_VariableToPlotMultiMap.upper_bound(it->first)) {
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variableUnderGraphVector.push_back(it->first);
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}
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emit requestDataLoading(std::move(variableUnderGraphVector), graphRange, oldGraphRange,
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!impl->m_IsCalibration);
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if (!impl->m_IsCalibration) {
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qCDebug(LOG_VisualizationGraphWidget())
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<< tr("TORM: VisualizationGraphWidget::Synchronize notify !!")
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<< QThread::currentThread()->objectName() << graphRange << oldGraphRange;
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emit synchronize(graphRange, oldGraphRange);
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}
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}
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}
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void VisualizationGraphWidget::onMouseMove(QMouseEvent *event) noexcept
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{
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// Handles plot rendering when mouse is moving
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impl->m_RenderingDelegate->onMouseMove(event);
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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::onMousePress(QMouseEvent *event) noexcept
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{
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impl->m_IsCalibration = event->modifiers().testFlag(Qt::ControlModifier);
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}
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void VisualizationGraphWidget::onMouseRelease(QMouseEvent *event) noexcept
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{
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impl->m_IsCalibration = false;
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}
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void VisualizationGraphWidget::onDataCacheVariableUpdated()
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{
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auto graphRange = ui->widget->xAxis->range();
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auto dateTime = SqpRange{graphRange.lower, graphRange.upper};
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for (auto &variableEntry : impl->m_VariableToPlotMultiMap) {
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auto variable = variableEntry.first;
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qCDebug(LOG_VisualizationGraphWidget())
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<< "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated S" << variable->range();
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qCDebug(LOG_VisualizationGraphWidget())
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<< "TORM: VisualizationGraphWidget::onDataCacheVariableUpdated E" << dateTime;
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if (dateTime.contains(variable->range()) || dateTime.intersect(variable->range())) {
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VisualizationGraphHelper::updateData(variableEntry.second, variable->dataSeries(),
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variable->range());
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}
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}
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}
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void VisualizationGraphWidget::onUpdateVarDisplaying(std::shared_ptr<Variable> variable,
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const SqpRange &range)
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{
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auto it = impl->m_VariableToPlotMultiMap.find(variable);
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if (it != impl->m_VariableToPlotMultiMap.end()) {
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VisualizationGraphHelper::updateData(it->second, variable->dataSeries(), range);
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}
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}
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