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#ifndef MAIN_H
#define MAIN_H
#include <QObject>
#include <armadillo>
#include "colorscale.h"
#include "continuouscolorscale.h"
#include "projectionhistory.h"
#include "numericrange.h"
#include "barchart.h"
#include "colormap.h"
#include "scatterplot.h"
#include "voronoisplat.h"
class Main : public QObject
{
Q_OBJECT
Q_ENUMS(ObserverType)
Q_ENUMS(ColorScaleType)
public:
static Main *instance() {
// FIXME: Possibly dangerous
static Main *m = 0;
if (m == 0) {
m = new Main();
}
return m;
}
Q_INVOKABLE bool saveData() const {
bool ret = true;
if (m_cp.n_elem > 0 && m_indicesSavePath.size() > 0) {
ret = ret && m_cp.save(m_cpSavePath, arma::raw_ascii);
}
if (m_cpIndices.n_elem > 0 && m_cpSavePath.size() > 0) {
ret = ret && m_cpIndices.save(m_indicesSavePath, arma::raw_ascii);
}
return ret;
}
Q_INVOKABLE bool loadDataset(const std::string &path) { return m_dataset.load(path, arma::raw_ascii); }
Q_INVOKABLE void setIndicesSavePath(const std::string &path) {
m_indicesSavePath = path;
}
Q_INVOKABLE void setIndicesSavePath(const QString &path) {
setIndicesSavePath(path.toStdString());
}
Q_INVOKABLE void setCPSavePath(const std::string &path) {
m_cpSavePath = path;
}
Q_INVOKABLE void setCPSavePath(const QString &path) {
setCPSavePath(path.toStdString());
}
arma::mat X() const { return m_dataset.cols(0, m_dataset.n_cols - 2); }
arma::vec labels() const { return m_dataset.col(m_dataset.n_cols - 1); }
Q_INVOKABLE void setSelectRPs() {
cpPlot->setAcceptedMouseButtons(Qt::NoButton);
cpPlot->setAcceptHoverEvents(false);
rpPlot->setAcceptedMouseButtons(Qt::LeftButton | Qt::RightButton);
rpPlot->setAcceptHoverEvents(true);
}
Q_INVOKABLE void setSelectCPs() {
rpPlot->setAcceptedMouseButtons(Qt::NoButton);
rpPlot->setAcceptHoverEvents(false);
cpPlot->setAcceptedMouseButtons(Qt::LeftButton | Qt::RightButton);
cpPlot->setAcceptHoverEvents(true);
}
enum ColorScaleType {
ColorScaleCategorical,
ColorScaleContinuous,
ColorScaleDivergent,
ColorScaleRainbow
};
// No need to be static: this class is a singleton
ColorScale COLOR_SCALE_CATEGORICAL;
ColorScale COLOR_SCALE_CONTINUOUS;
ColorScale COLOR_SCALE_DIVERGENT;
ColorScale COLOR_SCALE_RAINBOW;
Q_INVOKABLE void setCPColorScale(ColorScaleType colorScaleType) {
ColorScale &scale = getColorScale(colorScaleType);
cpPlot->setColorScale(scale);
cpBarChart->setColorScale(scale);
cpColormap->setColorScale(scale);
}
Q_INVOKABLE void setRPColorScale(ColorScaleType colorScaleType) {
ColorScale &scale = getColorScale(colorScaleType);
rpPlot->setColorScale(scale);
splat->setColorScale(scale);
rpBarChart->setColorScale(scale);
rpColormap->setColorScale(scale);
}
// Pointers to visual components whose values are set in the main() function
// after components are instantiated by the QtQuick engine
BarChart *cpBarChart, *rpBarChart;
Colormap *cpColormap, *rpColormap;
Scatterplot *cpPlot, *rpPlot;
VoronoiSplat *splat;
// Object that controls manipulation history
ProjectionHistory *projectionHistory;
Q_INVOKABLE void undoManipulation() { projectionHistory->undo(); }
Q_INVOKABLE void resetManipulation() { projectionHistory->reset(); }
enum ObserverType {
ObserverCurrent = ProjectionHistory::ObserverCurrent,
ObserverDiffPrevious = ProjectionHistory::ObserverDiffPrevious,
ObserverDiffFirst = ProjectionHistory::ObserverDiffFirst
};
Q_INVOKABLE bool setObserverType(ObserverType observerType) {
switch (observerType) {
case ObserverCurrent:
return projectionHistory->setType(ProjectionHistory::ObserverCurrent);
case ObserverDiffPrevious:
return projectionHistory->setType(ProjectionHistory::ObserverDiffPrevious);
case ObserverDiffFirst:
return projectionHistory->setType(ProjectionHistory::ObserverDiffFirst);
}
return false;
}
public slots:
void setCPIndices(const arma::uvec &indices) {
m_cpIndices = indices;
m_rpIndices.set_size(m_dataset.n_rows - m_cpIndices.n_elem);
NumericRange<arma::uword> allIndices(0, m_dataset.n_rows);
std::set_symmetric_difference(allIndices.cbegin(), allIndices.cend(),
m_cpIndices.cbegin(), m_cpIndices.cend(), m_rpIndices.begin());
}
void setCP(const arma::mat &cp) {
if (cp.n_cols != 2
|| cp.n_rows != m_cpIndices.n_elem) {
return;
}
m_cp = cp;
}
void updateMap(const arma::mat &Y) {
cpPlot->setXY(Y.rows(m_cpIndices));
const arma::mat ®ularPoints = Y.rows(m_rpIndices);
rpPlot->setXY(regularPoints);
splat->setSites(regularPoints);
}
private:
Main(QObject *parent = 0)
: QObject(parent)
, COLOR_SCALE_CATEGORICAL{{
QColor("#1f77b4"), QColor("#ff7f0e"), QColor("#2ca02c"),
QColor("#d62728"), QColor("#9467bd"), QColor("#8c564b"),
QColor("#e377c2"), QColor("#17becf"), QColor("#7f7f7f"),
}}
, COLOR_SCALE_CONTINUOUS{ContinuousColorScale::builtin(ContinuousColorScale::HeatedObjects)}
, COLOR_SCALE_DIVERGENT{ContinuousColorScale::builtin(ContinuousColorScale::RedGrayBlue)}
, COLOR_SCALE_RAINBOW{ContinuousColorScale::builtin(ContinuousColorScale::Rainbow)}
, cpBarChart(0)
, rpBarChart(0)
, cpColormap(0)
, rpColormap(0)
, cpPlot(0)
, rpPlot(0)
, splat(0)
, projectionHistory(0)
{
}
~Main() {}
ColorScale &getColorScale(ColorScaleType colorScaleType) {
switch (colorScaleType) {
case ColorScaleCategorical:
return COLOR_SCALE_CATEGORICAL;
case ColorScaleContinuous:
return COLOR_SCALE_CONTINUOUS;
case ColorScaleDivergent:
return COLOR_SCALE_DIVERGENT;
case ColorScaleRainbow:
// fall-through
default:
return COLOR_SCALE_RAINBOW;
}
}
arma::mat m_dataset, m_cp;
arma::uvec m_cpIndices, m_rpIndices;
std::string m_indicesSavePath, m_cpSavePath;
};
#endif // MAIN_H
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