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#ifndef HISTORYGRAPH_H
#define HISTORYGRAPH_H
#include <QtQuick>
#include <QMatrix4x4>
#include <armadillo>
class HistoryGraph : public QQuickItem
{
Q_OBJECT
public:
HistoryGraph(QQuickItem *parent = 0);
~HistoryGraph();
signals:
void currentItemChanged(const arma::mat &item);
public slots:
void addHistoryItem(const arma::mat &item);
protected:
QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
void hoverMoveEvent(QHoverEvent *event);
void mousePressEvent(QMouseEvent *event);
private:
class HistoryItemNode;
HistoryItemNode *nodeAt(const QPointF &pos) const;
HistoryItemNode *nodeAt(const QPointF &pos, HistoryItemNode *node) const;
QSGNode *createNodeTree();
void updateNodeTree(QSGNode *root);
void addScatterplot(QSGNode *node, const HistoryItemNode *historyItemNode, float x, float y, float w, float h);
HistoryItemNode *m_firstNode, *m_currentNode;
QMatrix4x4 m_viewportTransform;
float m_currentWidth;
bool m_needsUpdate;
};
#endif // HISTORYGRAPH_H
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