|
|
/******************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2015 The Qt Company Ltd.
|
|
|
** Contact: http://www.qt.io/licensing/
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE:COMM$
|
|
|
**
|
|
|
** Commercial License Usage
|
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
|
** accordance with the commercial license agreement provided with the
|
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
|
** and conditions see http://www.qt.io/terms-conditions. For further
|
|
|
** information use the contact form at http://www.qt.io/contact-us.
|
|
|
**
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
******************************************************************************/
|
|
|
|
|
|
#include <private/piesliceanimation_p.h>
|
|
|
#include <private/piechartitem_p.h>
|
|
|
|
|
|
Q_DECLARE_METATYPE(QT_CHARTS_NAMESPACE::PieSliceData)
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
qreal linearPos(qreal start, qreal end, qreal pos)
|
|
|
{
|
|
|
return start + ((end - start) * pos);
|
|
|
}
|
|
|
|
|
|
QPointF linearPos(QPointF start, QPointF end, qreal pos)
|
|
|
{
|
|
|
qreal x = linearPos(start.x(), end.x(), pos);
|
|
|
qreal y = linearPos(start.y(), end.y(), pos);
|
|
|
return QPointF(x, y);
|
|
|
}
|
|
|
|
|
|
QPen linearPos(QPen start, QPen end, qreal pos)
|
|
|
{
|
|
|
QColor c;
|
|
|
c.setRedF(linearPos(start.color().redF(), end.color().redF(), pos));
|
|
|
c.setGreenF(linearPos(start.color().greenF(), end.color().greenF(), pos));
|
|
|
c.setBlueF(linearPos(start.color().blueF(), end.color().blueF(), pos));
|
|
|
end.setColor(c);
|
|
|
return end;
|
|
|
}
|
|
|
|
|
|
QBrush linearPos(QBrush start, QBrush end, qreal pos)
|
|
|
{
|
|
|
QColor c;
|
|
|
c.setRedF(linearPos(start.color().redF(), end.color().redF(), pos));
|
|
|
c.setGreenF(linearPos(start.color().greenF(), end.color().greenF(), pos));
|
|
|
c.setBlueF(linearPos(start.color().blueF(), end.color().blueF(), pos));
|
|
|
end.setColor(c);
|
|
|
return end;
|
|
|
}
|
|
|
|
|
|
PieSliceAnimation::PieSliceAnimation(PieSliceItem *sliceItem)
|
|
|
: ChartAnimation(sliceItem),
|
|
|
m_sliceItem(sliceItem),
|
|
|
m_currentValue(m_sliceItem->m_data)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
PieSliceAnimation::~PieSliceAnimation()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void PieSliceAnimation::setValue(const PieSliceData &startValue, const PieSliceData &endValue)
|
|
|
{
|
|
|
if (state() != QAbstractAnimation::Stopped)
|
|
|
stop();
|
|
|
|
|
|
m_currentValue = startValue;
|
|
|
|
|
|
setKeyValueAt(0.0, qVariantFromValue(startValue));
|
|
|
setKeyValueAt(1.0, qVariantFromValue(endValue));
|
|
|
}
|
|
|
|
|
|
void PieSliceAnimation::updateValue(const PieSliceData &endValue)
|
|
|
{
|
|
|
if (state() != QAbstractAnimation::Stopped)
|
|
|
stop();
|
|
|
|
|
|
setKeyValueAt(0.0, qVariantFromValue(m_currentValue));
|
|
|
setKeyValueAt(1.0, qVariantFromValue(endValue));
|
|
|
}
|
|
|
|
|
|
PieSliceData PieSliceAnimation::currentSliceValue()
|
|
|
{
|
|
|
// NOTE:
|
|
|
// We must use an internal current value because QVariantAnimation::currentValue() is updated
|
|
|
// before the animation is actually started. So if we get 2 updateValue() calls in a row the currentValue()
|
|
|
// will have the end value set from the first call and the second call will interpolate that instead of
|
|
|
// the original current value as it was before the first call.
|
|
|
return m_currentValue;
|
|
|
}
|
|
|
|
|
|
QVariant PieSliceAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const
|
|
|
{
|
|
|
PieSliceData startValue = qvariant_cast<PieSliceData>(start);
|
|
|
PieSliceData endValue = qvariant_cast<PieSliceData>(end);
|
|
|
|
|
|
PieSliceData result;
|
|
|
result = endValue;
|
|
|
result.m_center = linearPos(startValue.m_center, endValue.m_center, progress);
|
|
|
result.m_radius = linearPos(startValue.m_radius, endValue.m_radius, progress);
|
|
|
result.m_startAngle = linearPos(startValue.m_startAngle, endValue.m_startAngle, progress);
|
|
|
result.m_angleSpan = linearPos(startValue.m_angleSpan, endValue.m_angleSpan, progress);
|
|
|
result.m_slicePen = linearPos(startValue.m_slicePen, endValue.m_slicePen, progress);
|
|
|
result.m_sliceBrush = linearPos(startValue.m_sliceBrush, endValue.m_sliceBrush, progress);
|
|
|
result.m_holeRadius = linearPos(startValue.m_holeRadius, endValue.m_holeRadius, progress);
|
|
|
|
|
|
return qVariantFromValue(result);
|
|
|
}
|
|
|
|
|
|
void PieSliceAnimation::updateCurrentValue(const QVariant &value)
|
|
|
{
|
|
|
if (state() != QAbstractAnimation::Stopped) { //workaround
|
|
|
m_currentValue = qvariant_cast<PieSliceData>(value);
|
|
|
m_sliceItem->setLayout(m_currentValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
