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// Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QT3DANIMATION_ANIMATION_FCURVE_P_H
#define QT3DANIMATION_ANIMATION_FCURVE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "keyframe_p.h"
#include "functionrangefinder_p.h"
#include <Qt3DAnimation/qchannel.h>
#include <Qt3DAnimation/qchannelcomponent.h>
#include <Qt3DAnimation/qkeyframe.h>
#include <QtCore/qlist.h>
#ifndef QT_NO_DEBUG_STREAM
#include <QtCore/qdebug.h>
#endif
QT_BEGIN_NAMESPACE
namespace Qt3DAnimation {
namespace Animation {
class Q_AUTOTEST_EXPORT FCurve
{
public:
FCurve();
int keyframeCount() const { return m_localTimes.size(); }
void appendKeyframe(float localTime, const Keyframe &keyframe);
void clearKeyframes() { m_localTimes.clear(); m_keyframes.clear(); }
const float &localTime(int index) const { return m_localTimes[index]; }
float &localTime(int index) { return m_localTimes[index]; }
const Keyframe &keyframe(int index) const { return m_keyframes[index]; }
Keyframe &keyframe(int index) { return m_keyframes[index]; }
float startTime() const;
float endTime() const;
float evaluateAtTime(float localTime) const;
float evaluateAtTime(float localTime, int lowerBound) const;
float evaluateAtTimeAsSlerp(float localTime, int lowerBound, float halfTheta, float sinHalfTheta, float reverseQ1) const;
int lowerKeyframeBound(float localTime) const;
void read(const QJsonObject &json);
void setFromQChannelComponent(const QChannelComponent &qcc);
private:
QList<float> m_localTimes;
QList<Keyframe> m_keyframes;
FunctionRangeFinder m_rangeFinder;
};
#ifndef QT_NO_DEBUG_STREAM
inline QDebug operator<<(QDebug dbg, const FCurve &fcurve)
{
QDebugStateSaver saver(dbg);
dbg << "Keyframe Count = " << fcurve.keyframeCount() << Qt::endl;
for (int i = 0; i < fcurve.keyframeCount(); ++i) {
const Keyframe &kf = fcurve.keyframe(i);
switch (kf.interpolation) {
case QKeyFrame::BezierInterpolation: {
dbg << "t = " << fcurve.localTime(i)
<< ", value = " << kf.value
<< ", leftHandle = " << kf.leftControlPoint
<< ", rightHandle = " << kf.rightControlPoint
<< Qt::endl;
break;
}
case QKeyFrame::ConstantInterpolation:
case QKeyFrame::LinearInterpolation: {
dbg << "t = " << fcurve.localTime(i)
<< ", value = " << kf.value
<< Qt::endl;
break;
}
}
}
return dbg;
}
#endif
struct ChannelComponent
{
QString name;
FCurve fcurve;
void read(const QJsonObject &json);
void setFromQChannelComponent(const QChannelComponent &qcc);
};
#ifndef QT_NO_DEBUG_STREAM
inline QDebug operator<<(QDebug dbg, const ChannelComponent &channelComponent)
{
QDebugStateSaver saver(dbg);
dbg << "Channel Component Name: " << channelComponent.name << Qt::endl
<< "FCurve:" << channelComponent.fcurve << Qt::endl;
return dbg;
}
#endif
struct Channel
{
QString name;
qsizetype jointIndex = -1;
QVector<ChannelComponent> channelComponents;
void read(const QJsonObject &json);
void setFromQChannel(const QChannel &qch);
};
#ifndef QT_NO_DEBUG_STREAM
inline QDebug operator<<(QDebug dbg, const Channel &channel)
{
QDebugStateSaver saver(dbg);
dbg << "Channel Name: " << channel.name << Qt::endl
<< "Channels:" << channel.channelComponents.size() << Qt::endl;
for (const auto &channelComponent : std::as_const(channel.channelComponents)) {
dbg << channelComponent;
}
return dbg;
}
#endif
} // namespace Animation
} // namespace Qt3DAnimation
QT_END_NAMESPACE
#endif // QT3DANIMATION_ANIMATION_FCURVE_P_H