piesliceanimation.cpp
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CppLexer
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r794 | /**************************************************************************** | ||
** | ||||
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r2432 | ** Copyright (C) 2013 Digia Plc | ||
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r794 | ** All rights reserved. | ||
** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
** | ||||
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r2574 | ** This file is part of the Qt Enterprise Charts Add-on. | ||
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r794 | ** | ||
** $QT_BEGIN_LICENSE$ | ||||
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r2574 | ** Licensees holding valid Qt Enterprise licenses may use this file in | ||
** accordance with the Qt Enterprise License Agreement provided with the | ||||
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r794 | ** Software or, alternatively, in accordance with the terms contained in | ||
** a written agreement between you and Digia. | ||||
** | ||||
** If you have questions regarding the use of this file, please use | ||||
** contact form at http://qt.digia.com | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
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r623 | #include "piesliceanimation_p.h" | ||
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r618 | #include "piechartitem_p.h" | ||
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r821 | Q_DECLARE_METATYPE(QTCOMMERCIALCHART_NAMESPACE::PieSliceData) | ||
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r618 | |||
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); | ||||
} | ||||
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r659 | QPen linearPos(QPen start, QPen end, qreal pos) | ||
{ | ||||
QColor c; | ||||
c.setRedF(linearPos(start.color().redF(), end.color().redF(), pos)); | ||||
c.setGreenF(linearPos(start.color().greenF(), end.color().greenF(), pos)); | ||||
c.setBlueF(linearPos(start.color().blueF(), end.color().blueF(), pos)); | ||||
end.setColor(c); | ||||
return end; | ||||
} | ||||
QBrush linearPos(QBrush start, QBrush end, qreal pos) | ||||
{ | ||||
QColor c; | ||||
c.setRedF(linearPos(start.color().redF(), end.color().redF(), pos)); | ||||
c.setGreenF(linearPos(start.color().greenF(), end.color().greenF(), pos)); | ||||
c.setBlueF(linearPos(start.color().blueF(), end.color().blueF(), pos)); | ||||
end.setColor(c); | ||||
return end; | ||||
} | ||||
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r1053 | PieSliceAnimation::PieSliceAnimation(PieSliceItem *sliceItem) | ||
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r2097 | : ChartAnimation(sliceItem), | ||
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r2321 | m_sliceItem(sliceItem), | ||
m_currentValue(m_sliceItem->m_data) | ||||
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r618 | { | ||
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r2321 | |||
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r618 | } | ||
PieSliceAnimation::~PieSliceAnimation() | ||||
{ | ||||
} | ||||
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r668 | void PieSliceAnimation::setValue(const PieSliceData &startValue, const PieSliceData &endValue) | ||
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r618 | { | ||
if (state() != QAbstractAnimation::Stopped) | ||||
stop(); | ||||
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r659 | m_currentValue = startValue; | ||
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r618 | setKeyValueAt(0.0, qVariantFromValue(startValue)); | ||
setKeyValueAt(1.0, qVariantFromValue(endValue)); | ||||
} | ||||
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r668 | void PieSliceAnimation::updateValue(const PieSliceData &endValue) | ||
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r618 | { | ||
if (state() != QAbstractAnimation::Stopped) | ||||
stop(); | ||||
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r659 | setKeyValueAt(0.0, qVariantFromValue(m_currentValue)); | ||
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r618 | setKeyValueAt(1.0, qVariantFromValue(endValue)); | ||
} | ||||
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r668 | PieSliceData PieSliceAnimation::currentSliceValue() | ||
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r618 | { | ||
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r659 | // NOTE: | ||
// We must use an internal current value because QVariantAnimation::currentValue() is updated | ||||
// before the animation is actually started. So if we get 2 updateValue() calls in a row the currentValue() | ||||
// will have the end value set from the first call and the second call will interpolate that instead of | ||||
// the original current value as it was before the first call. | ||||
return m_currentValue; | ||||
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r618 | } | ||
QVariant PieSliceAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const | ||||
{ | ||||
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r2241 | PieSliceData startValue = qvariant_cast<PieSliceData>(start); | ||
PieSliceData endValue = qvariant_cast<PieSliceData>(end); | ||||
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r618 | |||
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r668 | PieSliceData result; | ||
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r618 | 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); | ||||
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r669 | result.m_slicePen = linearPos(startValue.m_slicePen, endValue.m_slicePen, progress); | ||
result.m_sliceBrush = linearPos(startValue.m_sliceBrush, endValue.m_sliceBrush, progress); | ||||
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r1838 | result.m_holeRadius = linearPos(startValue.m_holeRadius, endValue.m_holeRadius, progress); | ||
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r618 | |||
return qVariantFromValue(result); | ||||
} | ||||
void PieSliceAnimation::updateCurrentValue(const QVariant &value) | ||||
{ | ||||
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r659 | if (state() != QAbstractAnimation::Stopped) { //workaround | ||
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r2241 | m_currentValue = qvariant_cast<PieSliceData>(value); | ||
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r1074 | m_sliceItem->setLayout(m_currentValue); | ||
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r659 | } | ||
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r618 | } | ||
QTCOMMERCIALCHART_END_NAMESPACE | ||||