|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include "stackedbaranimation_p.h"
|
|
|
#include "stackedbarchartitem_p.h"
|
|
|
#include <QTimer>
|
|
|
|
|
|
Q_DECLARE_METATYPE(QVector<QRectF>)
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
StackedBarAnimation::StackedBarAnimation(BarChartItem *item)
|
|
|
:ChartAnimation(item),
|
|
|
m_item(item)
|
|
|
{
|
|
|
setEasingCurve(QEasingCurve::OutQuart);
|
|
|
}
|
|
|
|
|
|
StackedBarAnimation::~StackedBarAnimation()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
QVariant StackedBarAnimation::interpolated(const QVariant &from, const QVariant &to, qreal progress) const
|
|
|
{
|
|
|
QVector<QRectF> startVector = qVariantValue<QVector<QRectF> >(from);
|
|
|
QVector<QRectF> endVector = qVariantValue<QVector<QRectF> >(to);
|
|
|
QVector<QRectF> result;
|
|
|
|
|
|
Q_ASSERT(startVector.count() == endVector.count());
|
|
|
|
|
|
qreal yAxis = m_item->geometry().height() + m_item->geometry().y();
|
|
|
|
|
|
for(int i = 0; i < startVector.count(); i++) {
|
|
|
qreal w = endVector[i].width();
|
|
|
qreal h = startVector[i].height() + ((endVector[i].height() - startVector[i].height()) * progress);
|
|
|
qreal x = endVector[i].topLeft().x();
|
|
|
qreal y = yAxis + ((endVector[i].topLeft().y() - yAxis) * progress);
|
|
|
|
|
|
QRectF value(x,y,w,h);
|
|
|
result << value;
|
|
|
}
|
|
|
return qVariantFromValue(result);
|
|
|
}
|
|
|
|
|
|
void StackedBarAnimation::updateCurrentValue(const QVariant &value)
|
|
|
{
|
|
|
QVector<QRectF> layout = qVariantValue<QVector<QRectF> >(value);
|
|
|
m_item->setLayout(layout);
|
|
|
}
|
|
|
|
|
|
|
|
|
void StackedBarAnimation::updateLayout(const QVector<QRectF> &oldLayout, const QVector<QRectF> &newLayout)
|
|
|
{
|
|
|
setDuration(ChartAnimationDuration);
|
|
|
setKeyValueAt(0.0, qVariantFromValue(oldLayout));
|
|
|
setKeyValueAt(1.0, qVariantFromValue(newLayout));
|
|
|
QTimer::singleShot(0, this, SLOT(start()));
|
|
|
}
|
|
|
#include "moc_stackedbaranimation_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
