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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 PIESLICEANIMATION_P_H
40#define PIESLICEANIMATION_P_H
41
42#include <private/chartanimation_p.h>
43#include <private/piesliceitem_p.h>
44#include <QtCharts/private/qchartglobal_p.h>
45
46QT_CHARTS_BEGIN_NAMESPACE
47
48class PieChartItem;
49
50class Q_CHARTS_PRIVATE_EXPORT PieSliceAnimation : public ChartAnimation
51{
52public:
53 PieSliceAnimation(PieSliceItem *sliceItem);
54 ~PieSliceAnimation();
55 void setValue(const PieSliceData &startValue, const PieSliceData &endValue);
56 void updateValue(const PieSliceData &endValue);
57 PieSliceData currentSliceValue();
58
59protected:
60 QVariant interpolated(const QVariant &start, const QVariant &end, qreal progress) const;
61 void updateCurrentValue(const QVariant &value);
62
63private:
64 PieSliceItem *m_sliceItem;
65 PieSliceData m_currentValue;
66};
67
68QT_CHARTS_END_NAMESPACE
69
70#endif
71

source code of qtcharts/src/charts/animations/piesliceanimation_p.h