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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 CHARTCATEGORYAXISX_H
40#define CHARTCATEGORYAXISX_H
41
42#include <private/horizontalaxis_p.h>
43#include <QtCharts/private/qchartglobal_p.h>
44
45QT_CHARTS_BEGIN_NAMESPACE
46
47class QCategoryAxis;
48
49class Q_CHARTS_PRIVATE_EXPORT ChartCategoryAxisX : public HorizontalAxis
50{
51 Q_OBJECT
52public:
53 ChartCategoryAxisX(QCategoryAxis *axis, QGraphicsItem* item = 0);
54 ~ChartCategoryAxisX();
55
56 QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const;
57
58public Q_SLOTS:
59 void handleCategoriesChanged();
60
61protected:
62 QVector<qreal> calculateLayout() const;
63 void updateGeometry();
64
65private:
66 QCategoryAxis *m_axis;
67};
68
69QT_CHARTS_END_NAMESPACE
70
71#endif /* CHARTCATEGORYAXISX_H */
72

source code of qtcharts/src/charts/axis/categoryaxis/chartcategoryaxisx_p.h