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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, 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 Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
#include <private/axisanimation_p.h>
#include <private/chartaxiselement_p.h>
#include <private/qabstractaxis_p.h>
Q_DECLARE_METATYPE(QVector<qreal>)
QT_CHARTS_BEGIN_NAMESPACE
AxisAnimation::AxisAnimation(ChartAxisElement *axis)
: ChartAnimation(axis),
m_axis(axis),
m_type(DefaultAnimation)
{
setDuration(ChartAnimationDuration);
setEasingCurve(QEasingCurve::OutQuart);
}
AxisAnimation::~AxisAnimation()
{
}
void AxisAnimation::setAnimationType(Animation type)
{
if (state() != QAbstractAnimation::Stopped)
stop();
m_type = type;
}
void AxisAnimation::setAnimationPoint(const QPointF &point)
{
if (state() != QAbstractAnimation::Stopped)
stop();
m_point = point;
}
void AxisAnimation::setValues(QVector<qreal> &oldLayout, QVector<qreal> &newLayout)
{
if (state() != QAbstractAnimation::Stopped) stop();
switch (m_type) {
case ZoomOutAnimation: {
QRectF rect = m_axis->gridGeometry();
oldLayout.resize(newLayout.count());
for (int i = 0, j = oldLayout.count() - 1; i < (oldLayout.count() + 1) / 2; ++i, --j) {
oldLayout[i] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.left() : rect.bottom();
oldLayout[j] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.right() : rect.top();
}
}
break;
case ZoomInAnimation: {
int index = qMin(oldLayout.count() * (m_axis->axis()->orientation() == Qt::Horizontal ? m_point.x() : (1 - m_point.y())), newLayout.count() - (qreal)1.0);
oldLayout.resize(newLayout.count());
for (int i = 0; i < oldLayout.count(); i++)
oldLayout[i] = oldLayout[index];
}
break;
case MoveForwardAnimation: {
oldLayout.resize(newLayout.count());
for (int i = 0, j = i + 1; i < oldLayout.count() - 1; ++i, ++j)
oldLayout[i] = oldLayout[j];
}
break;
case MoveBackwordAnimation: {
oldLayout.resize(newLayout.count());
for (int i = oldLayout.count() - 1, j = i - 1; i > 0; --i, --j)
oldLayout[i] = oldLayout[j];
}
break;
default: {
oldLayout.resize(newLayout.count());
QRectF rect = m_axis->gridGeometry();
for (int i = 0, j = oldLayout.count() - 1; i < oldLayout.count(); ++i, --j)
oldLayout[i] = m_axis->axis()->orientation() == Qt::Horizontal ? rect.left() : rect.top();
}
break;
}
QVariantAnimation::KeyValues value;
setKeyValues(value); //workaround for wrong interpolation call
setKeyValueAt(0.0, qVariantFromValue(oldLayout));
setKeyValueAt(1.0, qVariantFromValue(newLayout));
}
QVariant AxisAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const
{
QVector<qreal> startVector = qvariant_cast<QVector<qreal> >(start);
QVector<qreal> endVecotr = qvariant_cast<QVector<qreal> >(end);
QVector<qreal> result;
Q_ASSERT(startVector.count() == endVecotr.count()) ;
for (int i = 0; i < startVector.count(); i++) {
qreal value = startVector[i] + ((endVecotr[i] - startVector[i]) * progress);
result << value;
}
return qVariantFromValue(result);
}
void AxisAnimation::updateCurrentValue(const QVariant &value)
{
if (state() != QAbstractAnimation::Stopped) { //workaround
QVector<qreal> vector = qvariant_cast<QVector<qreal> >(value);
m_axis->setLayout(vector);
m_axis->updateGeometry();
}
}
QT_CHARTS_END_NAMESPACE
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