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3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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6** This file is part of the Qt Charts module of the Qt Toolkit.
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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 QLEGENDMARKERPRIVATE_H
40#define QLEGENDMARKERPRIVATE_H
41
42#include <QtCharts/QChartGlobal>
43#include <QGraphicsObject>
44#include <QtGui/QBrush>
45#include <QtGui/QPen>
46#include <QtWidgets/QGraphicsLayoutItem>
47#include <QtCharts/private/qchartglobal_p.h>
48
49QT_CHARTS_BEGIN_NAMESPACE
50
51class QAbstractSeries;
52class QLegend;
53
54class QLegendMarker;
55class LegendMarkerItem;
56
57class Q_CHARTS_PRIVATE_EXPORT QLegendMarkerPrivate : public QObject
58{
59 Q_OBJECT
60public:
61 explicit QLegendMarkerPrivate(QLegendMarker *q, QLegend *legend);
62 virtual ~QLegendMarkerPrivate();
63
64 // Helper for now. (or declare LegendLayout as friend)
65 LegendMarkerItem* item() const { return m_item; }
66
67 virtual QAbstractSeries* series() = 0;
68 virtual QObject* relatedObject() = 0;
69
70 void invalidateLegend();
71 void invalidateAllItems();
72
73public Q_SLOTS:
74 virtual void updated() = 0;
75 void handleShapeChange();
76
77protected:
78 LegendMarkerItem *m_item;
79 QLegend *m_legend;
80 bool m_customLabel;
81 bool m_customBrush;
82 bool m_customPen;
83
84private:
85 QLegendMarker *q_ptr;
86
87 friend class QLegendPrivate;
88 friend class LegendMarkerItem;
89 Q_DECLARE_PUBLIC(QLegendMarker)
90};
91
92QT_CHARTS_END_NAMESPACE
93
94#endif // QLEGENDMARKERPRIVATE_H
95

source code of qtcharts/src/charts/legend/qlegendmarker_p.h