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Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.
Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.

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r1735:0a19606ca1b1
r1897:c0fc53c8ab57
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piesliceanimation_p.h
60 lines | 1.7 KiB | text/x-c | CLexer
/****************************************************************************
**
** Copyright (C) 2012 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 Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial 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
** $QT_END_LICENSE$
**
****************************************************************************/
// W A R N I N G
// -------------
//
// This file is not part of the QtCommercial 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 PIESLICEANIMATION_P_H
#define PIESLICEANIMATION_P_H
#include "chartanimation_p.h"
#include "piesliceitem_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
class PieChartItem;
class PieSliceAnimation : public ChartAnimation
{
public:
PieSliceAnimation(PieSliceItem *sliceItem);
~PieSliceAnimation();
void setValue(const PieSliceData &startValue, const PieSliceData &endValue);
void updateValue(const PieSliceData &endValue);
PieSliceData currentSliceValue();
protected:
QVariant interpolated(const QVariant &start, const QVariant &end, qreal progress) const;
void updateCurrentValue(const QVariant &value);
private:
PieSliceItem *m_sliceItem;
PieSliceData m_currentValue;
};
QTCOMMERCIALCHART_END_NAMESPACE
#endif