/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVisualization module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the QtDataVisualization 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 BARRENDERITEM_P_H
#define BARRENDERITEM_P_H

#include "abstractrenderitem_p.h"

QT_BEGIN_NAMESPACE_DATAVISUALIZATION

class Bars3DRenderer;

class BarRenderItem : public AbstractRenderItem
{
public:
    BarRenderItem();
    BarRenderItem(const BarRenderItem &other);
    virtual ~BarRenderItem();

    // Position relative to data window (for bar label generation)
    inline void setPosition(const QPoint &pos) { m_position = pos; }
    inline const QPoint &position() const { return m_position; }

    // Actual cached data value of the bar (needed to trigger label reformats)
    inline void setValue(float value)
    {
        m_value = value;
         // Force reformatting on next access by setting label string to null string
        if (!m_sliceLabel.isNull())
            setSliceLabel(QString());
        if (!m_selectionLabel.isNull())
            setSelectionLabel(QString());
    }
    inline float value() const { return m_value; }

    // Normalized bar height
    inline void setHeight(GLfloat height) { m_height = height; }
    inline GLfloat height() const { return m_height; }

    // Label item for formatted label
    LabelItem &sliceLabelItem();

    // Formatted label for item.
    void setSliceLabel(const QString &label);
    const QString &sliceLabel() const; // Formats label if not previously formatted

    // Series index in visual series that this item belongs to.
    // This is only utilized by slicing, so it may not be up to date on all items.
    inline void setSeriesIndex(int seriesIndex) { m_seriesIndex = seriesIndex; }
    inline int seriesIndex() const { return m_seriesIndex; }

protected:
    float m_value;
    QPoint m_position; // x = row, y = column
    GLfloat m_height;
    QString m_sliceLabel;
    LabelItem *m_sliceLabelItem;
    int m_seriesIndex;

    friend class QBarDataItem;
};

typedef QVector<BarRenderItem> BarRenderItemRow;
typedef QVector<BarRenderItemRow> BarRenderItemArray;

QT_END_NAMESPACE_DATAVISUALIZATION

#endif