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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd
** All rights reserved.
** For any questions to The Qt Company, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and The Qt Company.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
#include <private/baranimation_p.h>
#include <private/abstractbarchartitem_p.h>
Q_DECLARE_METATYPE(QVector<QRectF>)
QT_CHARTS_BEGIN_NAMESPACE
BarAnimation::BarAnimation(AbstractBarChartItem *item, int duration, QEasingCurve &curve)
: ChartAnimation(item),
m_item(item)
{
setDuration(duration);
setEasingCurve(curve);
}
BarAnimation::~BarAnimation()
{
}
QVariant BarAnimation::interpolated(const QVariant &from, const QVariant &to, qreal progress) const
{
QVector<QRectF> startVector = qvariant_cast<QVector<QRectF> >(from);
QVector<QRectF> endVector = qvariant_cast<QVector<QRectF> >(to);
QVector<QRectF> result;
Q_ASSERT(startVector.count() == endVector.count());
for (int i = 0; i < startVector.count(); i++) {
QRectF start = startVector[i].normalized();
QRectF end = endVector[i].normalized();
qreal x1 = start.left() + progress * (end.left() - start.left());
qreal x2 = start.right() + progress * (end.right() - start.right());
qreal y1 = start.top() + progress * (end.top() - start.top());
qreal y2 = start.bottom() + progress * (end.bottom() - start.bottom());
QRectF value(QPointF(x1, y1), QPointF(x2, y2));
result << value.normalized();
}
return qVariantFromValue(result);
}
void BarAnimation::updateCurrentValue(const QVariant &value)
{
if (state() != QAbstractAnimation::Stopped) { //workaround
QVector<QRectF> layout = qvariant_cast<QVector<QRectF> >(value);
m_item->setLayout(layout);
}
}
void BarAnimation::setup(const QVector<QRectF> &oldLayout, const QVector<QRectF> &newLayout)
{
QVariantAnimation::KeyValues value;
setKeyValues(value); //workaround for wrong interpolation call
setKeyValueAt(0.0, qVariantFromValue(oldLayout));
setKeyValueAt(1.0, qVariantFromValue(newLayout));
}
#include "moc_baranimation_p.cpp"
QT_CHARTS_END_NAMESPACE
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