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#ifndef SCATTERPLOT_H
#define SCATTERPLOT_H
#include <memory>
#include <armadillo>
#include <QtQuick>
#include "colorscale.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 colorDataChanged(const arma::vec &colorData) const;
void selectionChanged(const QSet<int> &selection) const;
public slots:
void setXY(const arma::mat &xy);
void setColorData(const arma::vec &colorData);
void setSelection(const QSet<int> &selection);
protected:
QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
private:
QSGNode *createGlyphNodeTree();
bool updateSelection(bool mergeSelection);
float fromDataXToScreenX(float x) const;
float fromDataYToScreenY(float y) const;
void applyManipulation();
void updateGeometry();
void updateMaterials();
arma::mat m_xy;
float m_xmin, m_xmax, m_ymin, m_ymax;
enum InteractionState {
INTERACTION_NONE,
INTERACTION_SELECTING,
INTERACTION_SELECTED,
INTERACTION_MOVING
} m_currentInteractionState;
QPointF m_dragOriginPos, m_dragCurrentPos;
QSet<int> m_selectedGlyphs;
bool m_shouldUpdateGeometry, m_shouldUpdateMaterials;
arma::vec m_colorData;
ColorScale *m_colorScale;
};
#endif // SCATTERPLOT_H
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