blob: 3a9af622d1e0178e18ff2f6a14d180cdc6d6bae4 (
plain)
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
|
#ifndef CHART_SCENE_H
#define CHART_SCENE_H
#include <QtCore>
#include <QtWidgets>
#include "Chart.h"
#include "DataPoint.h"
class ChartScene: public QGraphicsScene
{
public:
static const QSizeF Margin;
static const QSizeF Padding;
static const QSizeF DataSetPadding;
public:
static QSizeF getBorder();
public:
ChartScene(Chart* chart);
void setDataSet(const QList<DataPoint>& dataSet, int xTickInterval);
void setDataDirection(int direction) { dataDirection = direction; }
QString getXLabel() const { return chart->getXLabel(); }
QString getYLabel() const { return chart->getYLabel(); }
int getDataDirection() const { return dataDirection; }
QPointF getChartOrigin() const;
QRectF getChartRect() const;
QSizeF getDataSetSize() const;
QList<DataPoint> getDataSet() const {return dataSet; }
qreal getXTickSpacing() const;
qreal getYPosFromValue(int value) const;
int getMinY() const { return yMin; }
int getMaxY() const { return yMax; }
int getYDiff() const { return yMax - yMin; }
int getYTickSpacing() const { return yTickSpacing; }
private:
void initYScale();
int computeMinY() const;
int computeMaxY() const;
int computeYTickSpacing() const;
void extendYMinMax();
private:
Chart* chart;
QList<DataPoint> dataSet;
int yMin;
int yMax;
qreal yScale;
int yTickSpacing;
int dataDirection;
};
#endif
|
