piesliceanimation.cpp
78 lines
| 2.3 KiB
| text/x-c
|
CppLexer
Michal Klocek
|
r623 | #include "piesliceanimation_p.h" | ||
Jani Honkonen
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r618 | #include "piechartitem_p.h" | ||
#include "qpieslice.h" | ||||
Q_DECLARE_METATYPE(QtCommercialChart::PieSliceLayout) | ||||
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); | ||||
} | ||||
PieSliceAnimation::PieSliceAnimation(PieChartItem *item) | ||||
:QVariantAnimation(item), | ||||
m_item(item) | ||||
{ | ||||
} | ||||
PieSliceAnimation::~PieSliceAnimation() | ||||
{ | ||||
} | ||||
void PieSliceAnimation::setValue(PieSliceLayout& startValue, PieSliceLayout& endValue) | ||||
{ | ||||
if (state() != QAbstractAnimation::Stopped) | ||||
stop(); | ||||
setKeyValueAt(0.0, qVariantFromValue(startValue)); | ||||
setKeyValueAt(1.0, qVariantFromValue(endValue)); | ||||
} | ||||
void PieSliceAnimation::updateValue(PieSliceLayout& endValue) | ||||
{ | ||||
if (state() != QAbstractAnimation::Stopped) | ||||
stop(); | ||||
//qDebug() << "PieSliceAnimation::updateValue()" << endValue.m_data->label() << currentSliceValue().m_startAngle << endValue.m_startAngle; | ||||
setKeyValueAt(0.0, qVariantFromValue(currentSliceValue())); | ||||
setKeyValueAt(1.0, qVariantFromValue(endValue)); | ||||
} | ||||
PieSliceLayout PieSliceAnimation::currentSliceValue() | ||||
{ | ||||
return qVariantValue<PieSliceLayout>(currentValue()); | ||||
} | ||||
QVariant PieSliceAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const | ||||
{ | ||||
PieSliceLayout startValue = qVariantValue<PieSliceLayout>(start); | ||||
PieSliceLayout endValue = qVariantValue<PieSliceLayout>(end); | ||||
PieSliceLayout 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); | ||||
return qVariantFromValue(result); | ||||
} | ||||
void PieSliceAnimation::updateCurrentValue(const QVariant &value) | ||||
{ | ||||
Jani Honkonen
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r619 | PieSliceLayout layout = qVariantValue<PieSliceLayout>(value); | ||
Jani Honkonen
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r618 | if (state() != QAbstractAnimation::Stopped) //workaround | ||
Jani Honkonen
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r619 | m_item->setLayout(layout); | ||
Jani Honkonen
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r618 | } | ||
QTCOMMERCIALCHART_END_NAMESPACE | ||||