xychartanimator_p.h
96 lines
| 2.6 KiB
| text/x-c
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CLexer
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r476 | #ifndef XYCHARTANIMATOR_P_H_ | ||
#define XYCHARTANIMATOR_P_H_ | ||||
#include "qchartglobal.h" | ||||
#include <QVariantAnimation> | ||||
#include <QPointF> | ||||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
template <class T, class U> | ||||
class XYChartAnimationItem; | ||||
template <class T, class U> | ||||
class XYChartAnimator : public QVariantAnimation | ||||
{ | ||||
public: | ||||
enum Animation { LineDrawAnimation, MoveDownAnimation, MoveUpAnimation }; | ||||
XYChartAnimator(XYChartAnimationItem<T,U> *item, QObject *parent = 0 ); | ||||
~XYChartAnimator(); | ||||
protected: | ||||
QVariant interpolated(const QVariant &start, const QVariant & end, qreal progress ) const; | ||||
void updateCurrentValue (const QVariant & value ); | ||||
void updateState ( QAbstractAnimation::State newState, QAbstractAnimation::State oldState); | ||||
private: | ||||
XYChartAnimationItem<T,U> *m_item; | ||||
Animation m_type; | ||||
}; | ||||
template <class T, class U> | ||||
XYChartAnimator<T,U>::XYChartAnimator(XYChartAnimationItem<T,U> *item , QObject *parent):QVariantAnimation(parent), | ||||
m_item(item), | ||||
m_type(MoveDownAnimation) | ||||
{ | ||||
} | ||||
template <class T,class U> | ||||
XYChartAnimator<T,U>::~XYChartAnimator() | ||||
{ | ||||
} | ||||
template <class T, class U> | ||||
QVariant XYChartAnimator<T,U>::interpolated(const QVariant &start, const QVariant & end, qreal progress ) const | ||||
{ | ||||
QVector<QPointF> startVector = qVariantValue<QVector<QPointF> >(start); | ||||
QVector<QPointF> endVector = qVariantValue<QVector<QPointF> >(end); | ||||
QVector<QPointF> result; | ||||
switch(m_type) { | ||||
case MoveDownAnimation: { | ||||
Q_ASSERT(startVector.count() == endVector.count()); | ||||
for(int i =0;i< startVector.count();i++) { | ||||
qreal x = startVector[i].x() + ((endVector[i].x()- startVector[i].x()) * progress); | ||||
qreal y = startVector[i].y() + ((endVector[i].y()- startVector[i].y()) * progress); | ||||
result << QPointF(x,y); | ||||
} | ||||
} | ||||
break; | ||||
case LineDrawAnimation:{ | ||||
for(int i =0;i< endVector.count()* qBound(0.0, progress, 1.0);i++) { | ||||
result << endVector[i]; | ||||
} | ||||
} | ||||
break; | ||||
default: | ||||
qWarning()<<"Unknow type of animation"; | ||||
break; | ||||
} | ||||
return qVariantFromValue(result); | ||||
} | ||||
template <class T, class U> | ||||
void XYChartAnimator<T,U>::updateCurrentValue (const QVariant & value ) | ||||
{ | ||||
QVector<QPointF> vector = qVariantValue<QVector<QPointF> >(value); | ||||
if(state()!=QAbstractAnimation::Stopped){ //workaround | ||||
m_item->setGeometry(vector); | ||||
} | ||||
} | ||||
template <class T, class U> | ||||
void XYChartAnimator<T,U>::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState) | ||||
{ | ||||
Q_UNUSED(oldState) | ||||
if (newState==QAbstractAnimation::Running) m_item->animationStarted(); | ||||
QVariantAnimation::updateState(newState,oldState); | ||||
} | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||
#endif /* XYCHARTANIMATOR_P_H_ */ | ||||