|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2014 Digia Plc
|
|
|
** All rights reserved.
|
|
|
** For any questions to Digia, please use contact form at http://qt.io
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** Licensees holding valid commercial license for Qt may use this file in
|
|
|
** accordance with the Qt 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.io
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include <private/splineanimation_p.h>
|
|
|
#include <private/splinechartitem_p.h>
|
|
|
#include <QtCore/QDebug>
|
|
|
|
|
|
Q_DECLARE_METATYPE(QVector<QPointF>)
|
|
|
Q_DECLARE_METATYPE(SplineVector)
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
SplineAnimation::SplineAnimation(SplineChartItem *item)
|
|
|
: XYAnimation(item),
|
|
|
m_item(item),
|
|
|
m_valid(false)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
SplineAnimation::~SplineAnimation()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void SplineAnimation::setup(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, QVector<QPointF> &oldControlPoints, QVector<QPointF> &newControlPoints, int index)
|
|
|
{
|
|
|
if (newPoints.count() * 2 - 2 != newControlPoints.count() || newControlPoints.count() < 2) {
|
|
|
m_valid = false;
|
|
|
m_dirty = false;
|
|
|
m_item->setGeometryPoints(newPoints);
|
|
|
m_item->setControlGeometryPoints(newControlPoints);
|
|
|
m_item->setDirty(false);
|
|
|
m_item->updateGeometry();
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
m_type = NewAnimation;
|
|
|
|
|
|
if (state() != QAbstractAnimation::Stopped) {
|
|
|
stop();
|
|
|
m_dirty = false;
|
|
|
}
|
|
|
|
|
|
if (!m_dirty) {
|
|
|
m_dirty = true;
|
|
|
m_oldSpline.first = oldPoints;
|
|
|
m_oldSpline.second = oldControlPoints;
|
|
|
}
|
|
|
|
|
|
m_newSpline.first = newPoints;
|
|
|
m_newSpline.second = newControlPoints;
|
|
|
|
|
|
|
|
|
int x = m_oldSpline.first.count();
|
|
|
int y = m_newSpline.first.count();
|
|
|
|
|
|
if (x - y == 1 && index >= 0 && y > 0) {
|
|
|
//remove point
|
|
|
if (index > 0) {
|
|
|
m_newSpline.first.insert(index, newPoints[index - 1]);
|
|
|
m_newSpline.second.insert((index - 1) * 2, newPoints[index - 1]);
|
|
|
m_newSpline.second.insert((index - 1) * 2 + 1, newPoints[index - 1]);
|
|
|
} else {
|
|
|
m_newSpline.first.insert(0, newPoints[index]);
|
|
|
m_newSpline.second.insert(0, newPoints[index]);
|
|
|
m_newSpline.second.insert(1, newPoints[index]);
|
|
|
}
|
|
|
m_index = index;
|
|
|
m_type = RemovePointAnimation;
|
|
|
}
|
|
|
|
|
|
if (x - y == -1 && index >= 0) {
|
|
|
//add point
|
|
|
if (index > 0) {
|
|
|
m_oldSpline.first.insert(index, newPoints[index - 1]);
|
|
|
m_oldSpline.second.insert((index - 1) * 2, newPoints[index - 1]);
|
|
|
m_oldSpline.second.insert((index - 1) * 2 + 1, newPoints[index - 1]);
|
|
|
} else {
|
|
|
m_oldSpline.first.insert(0, newPoints[index]);
|
|
|
m_oldSpline.second.insert(0, newPoints[index]);
|
|
|
m_oldSpline.second.insert(1, newPoints[index]);
|
|
|
}
|
|
|
m_index = index;
|
|
|
m_type = AddPointAnimation;
|
|
|
}
|
|
|
|
|
|
x = m_oldSpline.first.count();
|
|
|
y = m_newSpline.first.count();
|
|
|
|
|
|
if (x != y) {
|
|
|
m_type = NewAnimation;
|
|
|
} else if (m_type == NewAnimation) {
|
|
|
m_type = ReplacePointAnimation;
|
|
|
}
|
|
|
|
|
|
|
|
|
setKeyValueAt(0.0, qVariantFromValue(m_oldSpline));
|
|
|
setKeyValueAt(1.0, qVariantFromValue(m_newSpline));
|
|
|
|
|
|
m_valid = true;
|
|
|
|
|
|
}
|
|
|
|
|
|
QVariant SplineAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const
|
|
|
{
|
|
|
|
|
|
SplineVector startPair = qvariant_cast< SplineVector >(start);
|
|
|
SplineVector endPair = qvariant_cast< SplineVector >(end);
|
|
|
SplineVector result;
|
|
|
|
|
|
switch (animationType()) {
|
|
|
case RemovePointAnimation:
|
|
|
case AddPointAnimation:
|
|
|
case ReplacePointAnimation: {
|
|
|
if (startPair.first.count() != endPair.first.count())
|
|
|
break;
|
|
|
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 << QPointF(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 << QPointF(x, y);
|
|
|
}
|
|
|
}
|
|
|
break;
|
|
|
case NewAnimation: {
|
|
|
Q_ASSERT(endPair.first.count() * 2 - 2 == endPair.second.count());
|
|
|
int count = endPair.first.count() * qBound(qreal(0), progress, qreal(1));
|
|
|
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() << "Unknown type of animation";
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
return qVariantFromValue(result);
|
|
|
}
|
|
|
|
|
|
void SplineAnimation::updateCurrentValue(const QVariant &value)
|
|
|
{
|
|
|
if (state() != QAbstractAnimation::Stopped && m_valid) { //workaround
|
|
|
QPair<QVector<QPointF >, QVector<QPointF > > pair = qvariant_cast< QPair< QVector<QPointF>, QVector<QPointF> > >(value);
|
|
|
m_item->setGeometryPoints(pair.first);
|
|
|
m_item->setControlGeometryPoints(pair.second);
|
|
|
m_item->updateGeometry();
|
|
|
m_item->setDirty(true);
|
|
|
m_dirty = false;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void SplineAnimation::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
|
|
|
{
|
|
|
XYAnimation::updateState(newState, oldState);
|
|
|
|
|
|
if (oldState == QAbstractAnimation::Running && newState == QAbstractAnimation::Stopped) {
|
|
|
if (m_item->isDirty() && m_type == RemovePointAnimation) {
|
|
|
if (!m_newSpline.first.isEmpty()) {
|
|
|
if (m_index) {
|
|
|
m_newSpline.first.remove(m_index);
|
|
|
m_newSpline.second.remove((m_index - 1) * 2);
|
|
|
m_newSpline.second.remove((m_index - 1) * 2);
|
|
|
} else {
|
|
|
m_newSpline.first.remove(0);
|
|
|
m_newSpline.second.remove(0);
|
|
|
m_newSpline.second.remove(0);
|
|
|
}
|
|
|
}
|
|
|
m_item->setGeometryPoints(m_newSpline.first);
|
|
|
m_item->setControlGeometryPoints(m_newSpline.second);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (oldState == QAbstractAnimation::Stopped && newState == QAbstractAnimation::Running) {
|
|
|
if (!m_valid)
|
|
|
stop();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
