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#include "pieanimation_p.h"
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#include "piesliceanimation_p.h"
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#include "piechartitem_p.h"
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#include <QParallelAnimationGroup>
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#include <QTimer>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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PieAnimation::PieAnimation(PieChartItem *item)
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:ChartAnimation(item),
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m_item(item)
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{
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}
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PieAnimation::~PieAnimation()
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{
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}
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void PieAnimation::updateValues(const PieLayout &newValues)
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{
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foreach (QPieSlice* s, newValues.keys())
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updateValue(s, newValues.value(s));
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}
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void PieAnimation::updateValue(QPieSlice *slice, const PieSliceLayout &endLayout)
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{
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PieSliceAnimation *animation = m_animations.value(slice);
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Q_ASSERT(animation);
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animation->stop();
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animation->updateValue(endLayout);
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animation->setDuration(1000);
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animation->setEasingCurve(QEasingCurve::OutQuart);
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QTimer::singleShot(0, animation, SLOT(start()));
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}
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void PieAnimation::addSlice(QPieSlice *slice, const PieSliceLayout &endLayout, bool isEmpty)
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{
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PieSliceAnimation *animation = new PieSliceAnimation(m_item, slice);
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m_animations.insert(slice, animation);
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PieSliceLayout startLayout = endLayout;
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startLayout.m_radius = 0;
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if (isEmpty)
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startLayout.m_startAngle = 0;
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else
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startLayout.m_startAngle = endLayout.m_startAngle + (endLayout.m_angleSpan/2);
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startLayout.m_angleSpan = 0;
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animation->setValue(startLayout, endLayout);
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animation->setDuration(1000);
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animation->setEasingCurve(QEasingCurve::OutQuart);
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QTimer::singleShot(0, animation, SLOT(start()));
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}
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void PieAnimation::removeSlice(QPieSlice *slice)
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{
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PieSliceAnimation *animation = m_animations.value(slice);
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Q_ASSERT(animation);
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animation->stop();
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PieSliceLayout endLayout = animation->currentSliceValue();
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endLayout.m_radius = 0;
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// TODO: find the actual angle where this slice disappears
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endLayout.m_startAngle = endLayout.m_startAngle + endLayout.m_angleSpan;
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endLayout.m_angleSpan = 0;
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animation->updateValue(endLayout);
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animation->setDuration(1000);
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animation->setEasingCurve(QEasingCurve::OutQuart);
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connect(animation, SIGNAL(finished()), this, SLOT(destroySliceAnimationComplete()));
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QTimer::singleShot(0, animation, SLOT(start()));
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}
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void PieAnimation::updateCurrentValue(const QVariant &)
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{
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// nothing to do...
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}
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void PieAnimation::destroySliceAnimationComplete()
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{
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PieSliceAnimation *animation = static_cast<PieSliceAnimation*>(sender());
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QPieSlice *slice = m_animations.key(animation);
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m_item->destroySlice(slice);
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delete m_animations.take(slice);
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}
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#include "moc_pieanimation_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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