|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "piesliceanimation_p.h"
|
|
|
#include "piechartitem_p.h"
|
|
|
#include "qpieslice.h"
|
|
|
|
|
|
Q_DECLARE_METATYPE(QtCommercialChart::PieSliceData)
|
|
|
|
|
|
QTCOMMERCIALCHART_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(PieChartItem *item, QPieSlice *slice)
|
|
|
:QVariantAnimation(item),
|
|
|
m_item(item),
|
|
|
m_slice(slice)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
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 = qVariantValue<PieSliceData>(start);
|
|
|
PieSliceData endValue = qVariantValue<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);
|
|
|
|
|
|
return qVariantFromValue(result);
|
|
|
}
|
|
|
|
|
|
void PieSliceAnimation::updateCurrentValue(const QVariant &value)
|
|
|
{
|
|
|
if (state() != QAbstractAnimation::Stopped) { //workaround
|
|
|
m_currentValue = qVariantValue<PieSliceData>(value);
|
|
|
m_item->setLayout(m_slice, m_currentValue);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
