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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**
8** $QT_BEGIN_LICENSE:GPL$
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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
40#ifndef STACKEDBARCHARTITEM_H
41#define STACKEDBARCHARTITEM_H
42
43#include <private/abstractbarchartitem_p.h>
44#include <QtCharts/QStackedBarSeries>
45#include <QtWidgets/QGraphicsItem>
46#include <QtCharts/private/qchartglobal_p.h>
47
48QT_CHARTS_BEGIN_NAMESPACE
49
50class Q_CHARTS_PRIVATE_EXPORT StackedBarChartItem : public AbstractBarChartItem
51{
52 Q_OBJECT
53public:
54 StackedBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item =0);
55
56private Q_SLOTS:
57 void handleLabelsPositionChanged();
58 void positionLabels();
59
60private:
61 virtual QVector<QRectF> calculateLayout();
62 void initializeLayout(int set, int category, int layoutIndex, bool resetAnimation);
63 QPointF topLeftPoint(int category, qreal barWidth, qreal value);
64 QPointF bottomRightPoint(int category, qreal barWidth, qreal value);
65};
66
67QT_CHARTS_END_NAMESPACE
68
69#endif // STACKEDBARCHARTITEM_H
70

source code of qtcharts/src/charts/barchart/vertical/stacked/stackedbarchartitem_p.h