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2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Charts module of the Qt Toolkit.
7**
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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 XYCHART_H
40#define XYCHART_H
41
42#include <QtCharts/QChartGlobal>
43#include <private/chartitem_p.h>
44#include <private/xyanimation_p.h>
45#include <QtCharts/QValueAxis>
46#include <QtCharts/private/qchartglobal_p.h>
47#include <QtGui/QPen>
48
49QT_CHARTS_BEGIN_NAMESPACE
50
51class ChartPresenter;
52class QXYSeries;
53
54class Q_CHARTS_PRIVATE_EXPORT XYChart : public ChartItem
55{
56 Q_OBJECT
57public:
58 explicit XYChart(QXYSeries *series,QGraphicsItem *item = 0);
59 ~XYChart() {}
60
61 void setGeometryPoints(const QVector<QPointF> &points);
62 QVector<QPointF> geometryPoints() const { return m_points; }
63
64 void setAnimation(XYAnimation *animation);
65 ChartAnimation *animation() const { return m_animation; }
66 virtual void updateGeometry() = 0;
67
68 bool isDirty() const { return m_dirty; }
69 void setDirty(bool dirty);
70
71 void getSeriesRanges(qreal &minX, qreal &maxX, qreal &minY, qreal &maxY);
72 QVector<bool> offGridStatusVector();
73
74public Q_SLOTS:
75 void handlePointAdded(int index);
76 void handlePointRemoved(int index);
77 void handlePointsRemoved(int index, int count);
78 void handlePointReplaced(int index);
79 void handlePointsReplaced();
80 void handleDomainUpdated();
81
82Q_SIGNALS:
83 void clicked(const QPointF &point);
84 void hovered(const QPointF &point, bool state);
85 void pressed(const QPointF &point);
86 void released(const QPointF &point);
87 void doubleClicked(const QPointF &point);
88
89protected:
90 virtual void updateChart(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index = -1);
91 virtual void updateGlChart();
92 virtual void refreshGlChart();
93
94private:
95 inline bool isEmpty();
96
97protected:
98 QXYSeries *m_series;
99 QVector<QPointF> m_points;
100 XYAnimation *m_animation;
101 bool m_dirty;
102
103 friend class AreaChartItem;
104};
105
106QT_CHARTS_END_NAMESPACE
107
108#endif
109

source code of qtcharts/src/charts/xychart/xychart_p.h