/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
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** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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** $QT_END_LICENSE$
**
****************************************************************************/

//  W A R N I N G
//  -------------
//
// This file is not part of the Qt Chart API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.


#ifndef PERCENTBARCHARTITEM_H
#define PERCENTBARCHARTITEM_H

#include <private/abstractbarchartitem_p.h>
#include <QtWidgets/QGraphicsItem>
#include <QtCharts/private/qchartglobal_p.h>

QT_CHARTS_BEGIN_NAMESPACE

class QAbstractBarSeries;

class Q_CHARTS_PRIVATE_EXPORT PercentBarChartItem : public AbstractBarChartItem
{
    Q_OBJECT
public:
    PercentBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item = 0);
    QString generateLabelText(int set, int category, qreal value);

private Q_SLOTS:
    void handleLabelsPositionChanged();
    void positionLabels();

private:
    virtual QVector<QRectF> calculateLayout();
    void initializeLayout(int set, int category, int layoutIndex, bool resetAnimation);
    void markLabelsDirty(QBarSet *barset, int index, int count);
    QPointF topLeftPoint(int category, qreal barWidth, qreal value);
    QPointF bottomRightPoint(int category, qreal barWidth, qreal value);
};

QT_CHARTS_END_NAMESPACE

#endif // PERCENTBARCHARTITEM_H
