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#include "Visualization/PlottablesRenderingUtils.h"
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#include <Common/ColorUtils.h>
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#include <Variable/Variable2.h>
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#include <Visualization/qcustomplot.h>
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Q_LOGGING_CATEGORY(LOG_PlottablesRenderingUtils, "PlottablesRenderingUtils")
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namespace
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{
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/**
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* Delegate used to set plottables properties
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*/
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template <typename T, typename Enabled = void>
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struct PlottablesSetter
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{
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static void setProperties(PlottablesMap&)
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{
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// Default implementation does nothing
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qCCritical(LOG_PlottablesRenderingUtils())
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<< "Can't set plottables properties: unmanaged type of data";
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}
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};
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/**
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* Specialization of PlottablesSetter for scalars and vectors
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* @sa ScalarSeries
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* @sa VectorSeries
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*/
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template <typename T>
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struct PlottablesSetter<T,
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typename std::enable_if_t<std::is_base_of<ScalarTimeSerie, T>::value
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or std::is_base_of<VectorTimeSerie, T>::value
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or std::is_base_of<MultiComponentTimeSerie, T>::value>>
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{
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static void setProperties(PlottablesMap& plottables)
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{
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// Finds the plottable with the highest index to determine the number of colors to generate
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auto end = plottables.cend();
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auto maxPlottableIndexIt = std::max_element(plottables.cbegin(), end,
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[](const auto& it1, const auto& it2) { return it1.first < it2.first; });
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auto componentCount = maxPlottableIndexIt != end ? maxPlottableIndexIt->first + 1 : 0;
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// Generates colors for each component
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auto colors = ColorUtils::colors(Qt::blue, Qt::red, componentCount);
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// For each component of the data series, creates a QCPGraph to add to the plot
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for (auto i = 0; i < componentCount; ++i)
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{
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auto graphIt = plottables.find(i);
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if (graphIt != end)
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{
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graphIt->second->setPen(QPen { colors.at(i) });
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}
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}
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}
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};
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/**
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* Specialization of PlottablesSetter for spectrograms
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* @sa SpectrogramSeries
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*/
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template <typename T>
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struct PlottablesSetter<T,
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typename std::enable_if_t<std::is_base_of<SpectrogramTimeSerie, T>::value>>
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{
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static void setProperties(PlottablesMap& plottables)
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{
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// Checks that for a spectrogram there is only one plottable, that is a colormap
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if (plottables.size() != 1)
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{
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return;
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}
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if (auto colormap = dynamic_cast<QCPColorMap*>(plottables.begin()->second))
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{
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colormap->setInterpolate(false); // No value interpolation
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colormap->setTightBoundary(true);
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// Finds color scale in the colormap's plot to associate with it
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auto plot = colormap->parentPlot();
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auto plotElements = plot->plotLayout()->elements(false);
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for (auto plotElement : plotElements)
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{
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if (auto colorScale = dynamic_cast<QCPColorScale*>(plotElement))
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{
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colormap->setColorScale(colorScale);
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}
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}
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colormap->rescaleDataRange();
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}
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else
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{
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qCCritical(LOG_PlottablesRenderingUtils()) << "Can't get colormap of the spectrogram";
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}
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}
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};
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/**
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* Default implementation of IPlottablesHelper, which takes data series to set plottables properties
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* @tparam T the data series' type
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*/
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template <typename T>
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struct PlottablesHelper : public IPlottablesHelper
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{
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void setProperties(PlottablesMap& plottables) override
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{
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PlottablesSetter<T>::setProperties(plottables);
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}
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};
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} // namespace
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std::unique_ptr<IPlottablesHelper> IPlottablesHelperFactory::create(Variable2& variable) noexcept
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{
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switch (variable.type())
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{
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case DataSeriesType::SCALAR:
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return std::make_unique<PlottablesHelper<ScalarTimeSerie>>();
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case DataSeriesType::SPECTROGRAM:
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return std::make_unique<PlottablesHelper<SpectrogramTimeSerie>>();
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case DataSeriesType::VECTOR:
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return std::make_unique<PlottablesHelper<VectorTimeSerie>>();
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case DataSeriesType::MULTICOMPONENT:
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return std::make_unique<PlottablesHelper<MultiComponentTimeSerie>>();
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default:
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// Returns default helper
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break;
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}
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return std::make_unique<PlottablesHelper<TimeSeries::ITimeSerie>>();
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}
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