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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "baranimation_p.h"
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#include "abstractbarchartitem_p.h"
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#include <QTimer>
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Q_DECLARE_METATYPE(QVector<QRectF>)
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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BarAnimation::BarAnimation(AbstractBarChartItem *item)
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:AbstractBarAnimation(item)
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{
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}
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BarAnimation::~BarAnimation()
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{
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}
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QVariant BarAnimation::interpolated(const QVariant &from, const QVariant &to, qreal progress) const
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{
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QVector<QRectF> startVector = qVariantValue<QVector<QRectF> >(from);
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QVector<QRectF> endVector = qVariantValue<QVector<QRectF> >(to);
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QVector<QRectF> result;
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Q_ASSERT(startVector.count() == endVector.count());
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for(int i = 0; i < startVector.count(); i++) {
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QRectF start = startVector[i].normalized();
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QRectF end = endVector[i].normalized();
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qreal x = end.left();
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qreal y;
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qreal w = end.width();
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qreal h;
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if (endVector[i].height() < 0) {
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// Negative bar
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y = end.top();
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h = start.height() + ((end.height() - start.height()) * progress);
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} else {
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h = startVector[i].height() + ((endVector[i].height() - startVector[i].height()) * progress);
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y = endVector[i].top() + endVector[i].height() - h;
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}
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QRectF value(x,y,w,h);
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result << value.normalized();
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}
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return qVariantFromValue(result);
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}
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#include "moc_baranimation_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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