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29
30// W A R N I N G
31// -------------
32//
33// This file is not part of the Qt Chart API. It exists purely as an
34// implementation detail. This header file may change from version to
35// version without notice, or even be removed.
36//
37// We mean it.
38
39#ifndef CANDLESTICKCHARTITEM_P_H
40#define CANDLESTICKCHARTITEM_P_H
41
42#include <private/chartitem_p.h>
43#include <QtCharts/private/qchartglobal_p.h>
44
45QT_CHARTS_BEGIN_NAMESPACE
46
47class Candlestick;
48class CandlestickAnimation;
49class QCandlestickSeries;
50class QCandlestickSet;
51
52class Q_CHARTS_PRIVATE_EXPORT CandlestickChartItem : public ChartItem
53{
54 Q_OBJECT
55
56public:
57 CandlestickChartItem(QCandlestickSeries *series, QGraphicsItem *item = nullptr);
58 ~CandlestickChartItem();
59
60 void setAnimation(CandlestickAnimation *animation);
61
62 QRectF boundingRect() const;
63 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
64
65public Q_SLOTS:
66 void handleDomainUpdated();
67 void handleLayoutUpdated();
68 void handleCandlesticksUpdated();
69 void handleCandlestickSeriesChange();
70
71private Q_SLOTS:
72 void handleCandlestickSetsAdd(const QList<QCandlestickSet *> &sets);
73 void handleCandlestickSetsRemove(const QList<QCandlestickSet *> &sets);
74 void handleDataStructureChanged();
75
76private:
77 bool updateCandlestickGeometry(Candlestick *item, int index);
78 void updateCandlestickAppearance(Candlestick *item, QCandlestickSet *set);
79
80 void addTimestamp(qreal timestamp);
81 void removeTimestamp(qreal timestamp);
82 void updateTimePeriod();
83
84protected:
85 QRectF m_boundingRect;
86 QCandlestickSeries *m_series; // Not owned.
87 int m_seriesIndex;
88 int m_seriesCount;
89 QHash<QCandlestickSet *, Candlestick *> m_candlesticks;
90 QList<qreal> m_timestamps;
91 qreal m_timePeriod;
92 CandlestickAnimation *m_animation;
93};
94
95QT_CHARTS_END_NAMESPACE
96
97#endif // CANDLESTICKCHARTITEM_P_H
98

source code of qtcharts/src/charts/candlestickchart/candlestickchartitem_p.h