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#include "xyanimation_p.h"
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#include "xychartitem_p.h"
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Q_DECLARE_METATYPE(QVector<QPointF>)
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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XYAnimation::XYAnimation(XYChartItem *item):ChartAnimation(item),
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m_item(item),
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m_dirty(false)
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{
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}
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XYAnimation::~XYAnimation()
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{
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}
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void XYAnimation::setValues(QVector<QPointF>& oldPoints,QVector<QPointF>& newPoints,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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if(x!=y && abs(x-y)!=1) {
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m_oldPoints = newPoints;
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oldPoints.resize(newPoints.size());
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setKeyValueAt(0.0, qVariantFromValue(oldPoints));
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setKeyValueAt(1.0, qVariantFromValue(newPoints));
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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_oldPoints = oldPoints;
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m_dirty=false;
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}
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oldPoints = newPoints;
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if (y<x) (m_oldPoints.remove(index)); //remove
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if (y>x) (m_oldPoints.insert(index,x>0?m_oldPoints[index-1]:newPoints[index])); //add
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setKeyValueAt(0.0, qVariantFromValue(m_oldPoints));
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setKeyValueAt(1.0, qVariantFromValue(newPoints));
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Q_ASSERT(m_oldPoints.count() == newPoints.count());
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}
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}
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QVariant XYAnimation::interpolated(const QVariant &start, const QVariant & end, qreal progress ) const
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{
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QVector<QPointF> startVector = qVariantValue<QVector<QPointF> >(start);
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QVector<QPointF> endVector = qVariantValue<QVector<QPointF> >(end);
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QVector<QPointF> result;
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switch(m_type) {
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case MoveDownAnimation: {
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if(startVector.count() != endVector.count()) break;
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for(int i =0;i< startVector.count();i++) {
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qreal x = startVector[i].x() + ((endVector[i].x()- startVector[i].x()) * progress);
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qreal y = startVector[i].y() + ((endVector[i].y()- startVector[i].y()) * progress);
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result << QPointF(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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for(int i =0;i< endVector.count()* qBound(0.0, progress, 1.0);i++) {
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result << endVector[i];
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}
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}
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break;
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default:
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qWarning()<<"Unknown 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 XYAnimation::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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QVector<QPointF> vector = qVariantValue<QVector<QPointF> >(value);
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m_item->setLayout(vector);
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}
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}
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QTCOMMERCIALCHART_END_NAMESPACE
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