1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
#ifndef SCATTERPLOT_H
#define SCATTERPLOT_H
#include <vector>
#include <QtQuick>
#include <armadillo>
#include "colorscale.h"
#include "scale.h"
class QuadTree;
class Scatterplot
: public QQuickItem
{
Q_OBJECT
public:
static const int PADDING = 20;
Scatterplot(QQuickItem *parent = 0);
arma::mat XY() const;
void setColorScale(const ColorScale &colorScale);
void setXY(const arma::mat &xy, bool updateView);
void setColorData(const arma::vec &colorData, bool updateView);
void setOpacityData(const arma::vec &opacityData, bool updateView);
void setScale(const LinearScale<float> &sx, const LinearScale<float> &sy, bool updateView);
void setGlyphSize(float glyphSize, bool updateView);
void setAutoScale(bool autoScale);
Q_INVOKABLE bool saveToFile(const QUrl &url);
Q_INVOKABLE float glyphSize() const { return m_glyphSize; }
void setDragEnabled(bool enabled) { m_dragEnabled = enabled; }
bool isDragEnabled() const { return m_dragEnabled; }
signals:
void xyChanged(const arma::mat &XY) const;
void xyInteractivelyChanged(const arma::mat &XY) const;
void colorDataChanged(const arma::vec &colorData) const;
void opacityDataChanged(const arma::vec &opacityData) const;
void selectionChanged(const std::vector<bool> &selection) const;
void selectionInteractivelyChanged(const std::vector<bool> &selection) const;
void itemBrushed(int item) const;
void itemInteractivelyBrushed(int item) const;
void scaleChanged(const LinearScale<float> &sx, const LinearScale<float> &sy) const;
void glyphSizeChanged(float glyphSize) const;
public slots:
void setXY(const arma::mat &xy);
void setColorData(const arma::vec &colorData);
void setOpacityData(const arma::vec &opacityData);
void setSelection(const std::vector<bool> &selection);
void brushItem(int item);
void setScale(const LinearScale<float> &sx, const LinearScale<float> &sy);
Q_INVOKABLE void setGlyphSize(float glyphSize);
protected:
QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
void hoverEnterEvent(QHoverEvent *event);
void hoverMoveEvent(QHoverEvent *event);
void hoverLeaveEvent(QHoverEvent *event);
private:
QSGNode *newSceneGraph();
QSGNode *newGlyphTree();
void applyManipulation();
void updateGlyphs(QSGNode *node);
void updateBrush(QSGNode *node);
// Data
arma::mat m_xy;
arma::vec m_colorData;
arma::vec m_opacityData;
// Visuals
float m_glyphSize;
ColorScale m_colorScale;
void autoScale();
bool m_autoScale;
LinearScale<float> m_sx, m_sy;
// Internal state
bool interactiveSelection(bool mergeSelection);
std::vector<bool> m_selection;
int m_brushedItem;
enum State {
STATE_NONE,
STATE_BRUSHING,
STATE_SELECTING,
STATE_SELECTED,
STATE_MOVING
} m_interactionState;
bool m_dragEnabled;
QPointF m_dragOriginPos, m_dragCurrentPos;
bool m_shouldUpdateGeometry, m_shouldUpdateMaterials;
QuadTree *m_quadtree;
void updateQuadTree();
};
#endif // SCATTERPLOT_H
|
