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#ifndef SCATTERPLOT_H
#define SCATTERPLOT_H
#include <memory>
#include <armadillo>
#include <QtQuick>
#include <QSet>
#include <QEasingCurve>
#include "colorscale.h"
#include "scale.h"
class Scatterplot : public QQuickItem
{
Q_OBJECT
public:
Scatterplot(QQuickItem *parent = 0);
arma::mat XY() const;
void setColorScale(ColorScale *colorScale);
Q_INVOKABLE bool saveToFile(const QUrl &url);
signals:
void xyChanged(const arma::mat &XY) const;
void xyInteractivelyChanged(const arma::mat &XY) const;
void colorDataChanged(const arma::vec &colorData) const;
void selectionChanged(const QSet<int> &selection) const;
void displaySplatChanged(bool displaySplat) const;
public slots:
void setXY(const arma::mat &xy);
void setColorData(const arma::vec &colorData);
void setSelection(const QSet<int> &selection);
void setDisplaySplat(bool displaySplat);
protected:
QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
private:
QSGNode *newSceneGraph();
QSGNode *newSplatNode();
QSGNode *newGlyphTree();
bool updateSelection(bool mergeSelection);
void applyManipulation();
void updateGeometry();
void updateMaterials();
void updateSplat(QSGNode *node);
void updateGlyphs(QSGNode *node);
void resetAnimation();
void startAnimation();
void animationTick();
arma::mat m_oldXY, m_xy;
LinearScale<float> m_sx, m_sy;
enum InteractionState {
INTERACTION_NONE,
INTERACTION_SELECTING,
INTERACTION_SELECTED,
INTERACTION_BEGIN_MOVING,
INTERACTION_MOVING
} m_currentInteractionState;
QPointF m_dragOriginPos, m_dragCurrentPos;
QSet<int> m_selectedGlyphs;
bool m_shouldUpdateGeometry, m_shouldUpdateMaterials;
bool m_displaySplat;
arma::vec m_colorData;
ColorScale *m_colorScale;
QEasingCurve m_animationEasing;
float m_t;
};
#endif // SCATTERPLOT_H
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