splineanimation.cpp
149 lines
| 5.5 KiB
| text/x-c
|
CppLexer
Jani Honkonen
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r794 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2012 Digia Plc | ||||
** All rights reserved. | ||||
** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
** | ||||
** This file is part of the Qt Commercial Charts Add-on. | ||||
** | ||||
** $QT_BEGIN_LICENSE$ | ||||
** Licensees holding valid Qt Commercial licenses may use this file in | ||||
** accordance with the Qt Commercial License Agreement provided with the | ||||
** 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 | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
Michal Klocek
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r622 | #include "splineanimation_p.h" | ||
#include "splinechartitem_p.h" | ||||
Q_DECLARE_METATYPE(QVector<QPointF>) | ||||
Q_DECLARE_METATYPE(SplineVector) | ||||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
SplineAnimation::SplineAnimation(SplineChartItem* item):ChartAnimation(item), | ||||
Marek Rosa
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r738 | m_item(item), | ||
m_dirty(true) | ||||
Michal Klocek
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r622 | { | ||
} | ||||
SplineAnimation::~SplineAnimation() | ||||
{ | ||||
} | ||||
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r738 | void SplineAnimation::setValues(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, QVector<QPointF> &oldControlPoints, QVector<QPointF> &newControlPoints, int index) | ||
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r622 | { | ||
int x = oldPoints.count(); | ||||
int y = newPoints.count(); | ||||
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r738 | Q_ASSERT(newPoints.count() * 2 - 2 == newControlPoints.count()); | ||
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r622 | |||
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r738 | if (x != y && abs(x - y) != 1) { | ||
m_oldSpline.first = newPoints; | ||||
m_oldSpline.second = newControlPoints; | ||||
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r622 | oldPoints.resize(newPoints.size()); | ||
oldControlPoints.resize(newControlPoints.size()); | ||||
SplineVector oldPair; | ||||
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r738 | oldPair.first = oldPoints; | ||
oldPair.second = oldControlPoints; | ||||
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r622 | SplineVector newPair; | ||
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r738 | newPair.first = newPoints; | ||
newPair.second = newControlPoints; | ||||
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r622 | setKeyValueAt(0.0, qVariantFromValue(oldPair)); | ||
setKeyValueAt(1.0, qVariantFromValue(newPair)); | ||||
Marek Rosa
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r738 | m_dirty = false; | ||
Michal Klocek
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r622 | } | ||
else { | ||||
if(m_dirty) { | ||||
m_oldSpline.first = oldPoints; | ||||
m_oldSpline.second = oldControlPoints; | ||||
Marek Rosa
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r738 | m_dirty = false; | ||
Michal Klocek
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r622 | } | ||
oldPoints = newPoints; | ||||
oldControlPoints = newControlPoints; | ||||
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r738 | if (y < x) { | ||
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r622 | m_oldSpline.first.remove(index); //remove | ||
Marek Rosa
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r738 | m_oldSpline.second.remove(index * 2); | ||
m_oldSpline.second.remove(index * 2); | ||||
Michal Klocek
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r622 | } | ||
Marek Rosa
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r738 | if (y > x) { | ||
m_oldSpline.first.insert(index, x > 0 ? m_oldSpline.first[index-1] : newPoints[index]); //add | ||||
m_oldSpline.second.insert((index - 1) * 2, x > 1 ? m_oldSpline.second[(index-2)*2] : newControlPoints[(index - 1) * 2]); //add | ||||
m_oldSpline.second.insert((index - 1) * 2 + 1, x > 1 ? m_oldSpline.second[(index - 2) * 2 + 1] : newControlPoints[(index - 1) * 2 + 1]); //add | ||||
Michal Klocek
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r622 | } | ||
SplineVector newPair; | ||||
newPair.first=newPoints; | ||||
newPair.second=newControlPoints; | ||||
setKeyValueAt(0.0, qVariantFromValue(m_oldSpline)); | ||||
setKeyValueAt(1.0, qVariantFromValue(newPair)); | ||||
} | ||||
} | ||||
Marek Rosa
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r738 | QVariant SplineAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress ) const | ||
Michal Klocek
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r622 | { | ||
SplineVector startPair = qVariantValue< SplineVector >(start); | ||||
SplineVector endPair = qVariantValue< SplineVector >(end); | ||||
SplineVector result; | ||||
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r738 | switch (m_type) { | ||
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r622 | |||
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r738 | case MoveDownAnimation: { | ||
if (startPair.first.count() != endPair.first.count()) | ||||
Michal Klocek
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r622 | break; | ||
Marek Rosa
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r738 | Q_ASSERT(startPair.first.count() * 2 - 2 == startPair.second.count()); | ||
Q_ASSERT(endPair.first.count() * 2 - 2 == endPair.second.count()); | ||||
for(int i = 0; i < endPair.first.count(); i++) { | ||||
qreal x = startPair.first[i].x() + ((endPair.first[i].x() - startPair.first[i].x()) * progress); | ||||
qreal y = startPair.first[i].y() + ((endPair.first[i].y() - startPair.first[i].y()) * progress); | ||||
result.first << QPointF(x,y); | ||||
if (i + 1 >= endPair.first.count()) | ||||
continue; | ||||
x = startPair.second[i * 2].x() + ((endPair.second[i * 2].x() - startPair.second[i * 2].x()) * progress); | ||||
y = startPair.second[i * 2].y() + ((endPair.second[i * 2].y() - startPair.second[i * 2].y()) * progress); | ||||
result.second << QPoint(x,y); | ||||
x = startPair.second[i * 2 + 1].x() + ((endPair.second[i * 2 + 1].x() - startPair.second[i * 2 + 1].x()) * progress); | ||||
y = startPair.second[i * 2 + 1].y() + ((endPair.second[i * 2 + 1].y() - startPair.second[i * 2 + 1].y()) * progress); | ||||
result.second << QPoint(x,y); | ||||
Michal Klocek
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r622 | } | ||
Marek Rosa
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r738 | |||
} | ||||
break; | ||||
case LineDrawAnimation:{ | ||||
Q_ASSERT(endPair.first.count() * 2 - 2 == endPair.second.count()); | ||||
int count = endPair.first.count()* qBound(0.0, progress, 1.0); | ||||
for(int i = 0; i < count; i++) { | ||||
result.first << endPair.first[i]; | ||||
if(i + 1 == count) | ||||
break; | ||||
result.second << endPair.second[2 * i]; | ||||
result.second << endPair.second[2 * i + 1]; | ||||
} | ||||
} | ||||
break; | ||||
default: | ||||
qWarning() << "Unknow type of animation"; | ||||
break; | ||||
Michal Klocek
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r622 | } | ||
return qVariantFromValue(result); | ||||
} | ||||
Marek Rosa
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r738 | void SplineAnimation::updateCurrentValue (const QVariant &value ) | ||
Michal Klocek
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r622 | { | ||
Marek Rosa
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r738 | if (state() != QAbstractAnimation::Stopped) { //workaround | ||
m_dirty = true; | ||||
Michal Klocek
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r622 | QPair<QVector<QPointF >, QVector<QPointF > > pair = qVariantValue< QPair< QVector<QPointF>, QVector<QPointF> > >(value); | ||
Marek Rosa
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r738 | m_item->setLayout(pair.first, pair.second); | ||
Michal Klocek
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r622 | } | ||
} | ||||
QTCOMMERCIALCHART_END_NAMESPACE | ||||