1/****************************************************************************
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** $QT_BEGIN_LICENSE:GPL$
9** Commercial License Usage
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11** accordance with the commercial license agreement provided with the
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16**
17** GNU General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU
19** General Public License version 3 or (at your option) any later version
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21** the Free Software Foundation and appearing in the file LICENSE.GPL3
22** included in the packaging of this file. Please review the following
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28****************************************************************************/
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 PERCENTBARCHARTITEM_H
41#define PERCENTBARCHARTITEM_H
42
43#include <private/abstractbarchartitem_p.h>
44#include <QtWidgets/QGraphicsItem>
45#include <QtCharts/private/qchartglobal_p.h>
46
47QT_CHARTS_BEGIN_NAMESPACE
48
49class QAbstractBarSeries;
50
51class Q_CHARTS_PRIVATE_EXPORT PercentBarChartItem : public AbstractBarChartItem
52{
53 Q_OBJECT
54public:
55 PercentBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item = 0);
56 QString generateLabelText(int set, int category, qreal value);
57
58private Q_SLOTS:
59 void handleLabelsPositionChanged();
60 void positionLabels();
61
62private:
63 virtual QVector<QRectF> calculateLayout();
64 void initializeLayout(int set, int category, int layoutIndex, bool resetAnimation);
65 void markLabelsDirty(QBarSet *barset, int index, int count);
66 QPointF topLeftPoint(int category, qreal barWidth, qreal value);
67 QPointF bottomRightPoint(int category, qreal barWidth, qreal value);
68};
69
70QT_CHARTS_END_NAMESPACE
71
72#endif // PERCENTBARCHARTITEM_H
73

source code of qtcharts/src/charts/barchart/vertical/percent/percentbarchartitem_p.h