|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
|
** Contact: https://www.qt.io/licensing/
|
|
|
**
|
|
|
** This file is part of the Qt Charts module of the Qt Toolkit.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE:GPL$
|
|
|
** Commercial License Usage
|
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
|
** accordance with the commercial license agreement provided with the
|
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
|
** and conditions see https://www.qt.io/terms-conditions. For further
|
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
|
|
**
|
|
|
** GNU General Public License Usage
|
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
|
** General Public License version 3 or (at your option) any later version
|
|
|
** approved by the KDE Free Qt Foundation. The licenses are as published by
|
|
|
** the Free Software Foundation and appearing in the file LICENSE.GPL3
|
|
|
** included in the packaging of this file. Please review the following
|
|
|
** information to ensure the GNU General Public License requirements will
|
|
|
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
|
|
|
**
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include <private/xyanimation_p.h>
|
|
|
#include <private/xychart_p.h>
|
|
|
#include <QtCore/QDebug>
|
|
|
|
|
|
Q_DECLARE_METATYPE(QVector<QPointF>)
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
XYAnimation::XYAnimation(XYChart *item, int duration, QEasingCurve &curve)
|
|
|
: ChartAnimation(item),
|
|
|
m_type(NewAnimation),
|
|
|
m_dirty(false),
|
|
|
m_index(-1),
|
|
|
m_item(item)
|
|
|
{
|
|
|
setDuration(duration);
|
|
|
setEasingCurve(curve);
|
|
|
}
|
|
|
|
|
|
XYAnimation::~XYAnimation()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void XYAnimation::setup(const QVector<QPointF> &oldPoints, const QVector<QPointF> &newPoints, int index)
|
|
|
{
|
|
|
m_type = NewAnimation;
|
|
|
|
|
|
if (state() != QAbstractAnimation::Stopped) {
|
|
|
stop();
|
|
|
m_dirty = false;
|
|
|
}
|
|
|
|
|
|
if (!m_dirty) {
|
|
|
m_dirty = true;
|
|
|
m_oldPoints = oldPoints;
|
|
|
}
|
|
|
|
|
|
m_newPoints = newPoints;
|
|
|
|
|
|
int x = m_oldPoints.count();
|
|
|
int y = m_newPoints.count();
|
|
|
int diff = x - y;
|
|
|
int requestedDiff = oldPoints.count() - y;
|
|
|
|
|
|
// m_oldPoints can be whatever between 0 and actual points count if new animation setup
|
|
|
// interrupts a previous animation, so only do remove and add animations if both
|
|
|
// stored diff and requested diff indicate add or remove. Also ensure that index is not
|
|
|
// invalid.
|
|
|
if (diff == 1 && requestedDiff == 1 && index >= 0 && y > 0 && index <= y) {
|
|
|
//remove point
|
|
|
m_newPoints.insert(index, index > 0 ? newPoints[index - 1] : newPoints[index]);
|
|
|
m_index = index;
|
|
|
m_type = RemovePointAnimation;
|
|
|
}
|
|
|
|
|
|
if (diff == -1 && requestedDiff == -1 && index >= 0 && index <= x) {
|
|
|
//add point
|
|
|
m_oldPoints.insert(index, index > 0 ? newPoints[index - 1] : newPoints[index]);
|
|
|
m_index = index;
|
|
|
m_type = AddPointAnimation;
|
|
|
}
|
|
|
|
|
|
x = m_oldPoints.count();
|
|
|
y = m_newPoints.count();
|
|
|
|
|
|
if (x != y)
|
|
|
m_type = NewAnimation;
|
|
|
else if (m_type == NewAnimation)
|
|
|
m_type = ReplacePointAnimation;
|
|
|
|
|
|
setKeyValueAt(0.0, qVariantFromValue(m_oldPoints));
|
|
|
setKeyValueAt(1.0, qVariantFromValue(m_newPoints));
|
|
|
}
|
|
|
|
|
|
QVariant XYAnimation::interpolated(const QVariant &start, const QVariant &end, qreal progress) const
|
|
|
{
|
|
|
QVector<QPointF> startVector = qvariant_cast<QVector<QPointF> >(start);
|
|
|
QVector<QPointF> endVector = qvariant_cast<QVector<QPointF> >(end);
|
|
|
QVector<QPointF> result;
|
|
|
|
|
|
switch (m_type) {
|
|
|
|
|
|
case ReplacePointAnimation:
|
|
|
case AddPointAnimation:
|
|
|
case RemovePointAnimation: {
|
|
|
if (startVector.count() != endVector.count())
|
|
|
break;
|
|
|
|
|
|
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 NewAnimation: {
|
|
|
for (int i = 0; i < endVector.count() * qBound(qreal(0), progress, qreal(1)); i++)
|
|
|
result << endVector[i];
|
|
|
}
|
|
|
break;
|
|
|
default:
|
|
|
qWarning() << "Unknown type of animation";
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
return qVariantFromValue(result);
|
|
|
}
|
|
|
|
|
|
void XYAnimation::updateCurrentValue(const QVariant &value)
|
|
|
{
|
|
|
if (state() != QAbstractAnimation::Stopped) { //workaround
|
|
|
|
|
|
QVector<QPointF> vector = qvariant_cast<QVector<QPointF> >(value);
|
|
|
m_item->setGeometryPoints(vector);
|
|
|
m_item->updateGeometry();
|
|
|
m_item->setDirty(true);
|
|
|
m_dirty = false;
|
|
|
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void XYAnimation::updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
|
|
|
{
|
|
|
if (oldState == QAbstractAnimation::Running && newState == QAbstractAnimation::Stopped) {
|
|
|
if (m_item->isDirty() && m_type == RemovePointAnimation) {
|
|
|
if (!m_newPoints.isEmpty())
|
|
|
m_newPoints.remove(m_index);
|
|
|
m_item->setGeometryPoints(m_newPoints);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#include "moc_chartanimation_p.cpp"
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
