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#include "splineanimation_p.h"
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#include "splinechartitem_p.h"
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Q_DECLARE_METATYPE(QVector<QPointF>)
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Q_DECLARE_METATYPE(SplineVector)
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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SplineAnimation::SplineAnimation(SplineChartItem* item):ChartAnimation(item),
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m_item(item),
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m_dirty(true)
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{
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}
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SplineAnimation::~SplineAnimation()
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{
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}
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void SplineAnimation::setValues(QVector<QPointF>& oldPoints,QVector<QPointF>& newPoints,QVector<QPointF>& oldControlPoints,QVector<QPointF>& newControlPoints,int index)
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{
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int x = oldPoints.count();
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int y = newPoints.count();
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Q_ASSERT(newPoints.count()*2-2 == newControlPoints.count());
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if(x!=y && abs(x-y)!=1) {
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m_oldSpline.first= newPoints;
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m_oldSpline.second= newControlPoints;
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oldPoints.resize(newPoints.size());
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oldControlPoints.resize(newControlPoints.size());
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SplineVector oldPair;
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oldPair.first=oldPoints;
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oldPair.second=oldControlPoints;
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SplineVector newPair;
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newPair.first=newPoints;
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newPair.second=newControlPoints;
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setKeyValueAt(0.0, qVariantFromValue(oldPair));
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setKeyValueAt(1.0, qVariantFromValue(newPair));
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m_dirty=false;
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}
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else {
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if(m_dirty) {
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m_oldSpline.first = oldPoints;
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m_oldSpline.second = oldControlPoints;
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m_dirty=false;
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}
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oldPoints = newPoints;
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oldControlPoints = newControlPoints;
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if (y<x) {
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m_oldSpline.first.remove(index); //remove
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m_oldSpline.second.remove(index*2);
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m_oldSpline.second.remove(index*2);
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}
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if (y>x) {
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m_oldSpline.first.insert(index,x>0?m_oldSpline.first[index-1]:newPoints[index]); //add
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m_oldSpline.second.insert((index-1)*2,x>1?m_oldSpline.second[(index-2)*2]:newControlPoints[(index-1)*2]); //add
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m_oldSpline.second.insert((index-1)*2+1,x>1?m_oldSpline.second[(index-2)*2+1]:newControlPoints[(index-1)*2+1]); //add
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}
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SplineVector newPair;
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newPair.first=newPoints;
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newPair.second=newControlPoints;
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setKeyValueAt(0.0, qVariantFromValue(m_oldSpline));
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setKeyValueAt(1.0, qVariantFromValue(newPair));
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}
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}
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QVariant SplineAnimation::interpolated(const QVariant &start, const QVariant & end, qreal progress ) const
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{
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SplineVector startPair = qVariantValue< SplineVector >(start);
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SplineVector endPair = qVariantValue< SplineVector >(end);
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SplineVector result;
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switch(m_type) {
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case MoveDownAnimation: {
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if(startPair.first.count() != endPair.first.count()) break;
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Q_ASSERT(startPair.first.count()*2-2 == startPair.second.count());
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Q_ASSERT(endPair.first.count()*2-2 == endPair.second.count());
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for(int i =0;i< endPair.first.count();i++) {
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qreal x = startPair.first[i].x() + ((endPair.first[i].x()- startPair.first[i].x()) * progress);
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qreal y = startPair.first[i].y() + ((endPair.first[i].y()- startPair.first[i].y()) * progress);
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result.first << QPointF(x,y);
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if(i +1 >= endPair.first.count()) continue;
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x = startPair.second[i*2].x() + ((endPair.second[i*2].x()- startPair.second[i*2].x()) * progress);
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y = startPair.second[i*2].y() + ((endPair.second[i*2].y()- startPair.second[i*2].y()) * progress);
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result.second << QPoint(x,y);
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x = startPair.second[i*2+1].x() + ((endPair.second[i*2+1].x()- startPair.second[i*2+1].x()) * progress);
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y = startPair.second[i*2+1].y() + ((endPair.second[i*2+1].y()- startPair.second[i*2+1].y()) * progress);
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result.second << QPoint(x,y);
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}
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}
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break;
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case LineDrawAnimation:{
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Q_ASSERT(endPair.first.count()*2-2 == endPair.second.count());
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int count = endPair.first.count()* qBound(0.0, progress, 1.0);
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for(int i =0;i<count;i++) {
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result.first << endPair.first[i];
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if(i+1==count) break;
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result.second << endPair.second[2*i];
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result.second << endPair.second[2*i+1];
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}
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}
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break;
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default:
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qWarning()<<"Unknow type of animation";
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break;
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}
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return qVariantFromValue(result);
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}
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void SplineAnimation::updateCurrentValue (const QVariant & value )
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{
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if(state()!=QAbstractAnimation::Stopped){ //workaround
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m_dirty=true;
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QPair<QVector<QPointF >, QVector<QPointF > > pair = qVariantValue< QPair< QVector<QPointF>, QVector<QPointF> > >(value);
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m_item->setLayout(pair.first,pair.second);
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}
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}
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QTCOMMERCIALCHART_END_NAMESPACE
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