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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
#include "qlerpclipblend.h"
#include "qlerpclipblend_p.h"
QT_BEGIN_NAMESPACE
namespace Qt3DAnimation {
/*!
\qmltype LerpClipBlend
\instantiates Qt3DAnimation::QLerpClipBlend
\inqmlmodule Qt3D.Animation
\brief Performs a linear interpolation of two animation clips based on a
normalized factor.
\since 5.9
LerpClipBlend can be useful to create advanced animation effects based on
individual animation clips. For instance, given a player character,, lerp
blending could be used to combine a walking animation clip with an injured
animation clip based on a blend factor that increases the more the player
gets injured. This would then allow with blend factor == 0 to have a non
injured walking player, with blend factor == 1 a fully injured player, with
blend factor == 0.5 a partially walking and injured player.
\sa BlendedClipAnimator
*/
/*!
\class Qt3DAnimation::QLerpClipBlend
\inmodule Qt3DAnimation
\inherits Qt3DAnimation::QAbstractClipBlendNode
\brief Performs a linear interpolation of two animation clips based on a
normalized factor.
\since 5.9
QLerpClipBlend can be useful to create advanced animation effects based on
individual animation clips. For instance, given a player character, lerp
blending could be used to combine a walking animation clip with an injured
animation clip based on a blend factor that increases the more the player
gets injured. This would then allow with blend factor == 0 to have a non
injured walking player, with blend factor == 1 a fully injured player, with
blend factor == 0.5 a partially walking and injured player.
\sa QBlendedClipAnimator
*/
QLerpClipBlendPrivate::QLerpClipBlendPrivate()
: QAbstractClipBlendNodePrivate()
, m_startClip(nullptr)
, m_endClip(nullptr)
, m_blendFactor(0.0f)
{
}
QLerpClipBlend::QLerpClipBlend(Qt3DCore::QNode *parent)
: QAbstractClipBlendNode(*new QLerpClipBlendPrivate(), parent)
{
}
QLerpClipBlend::QLerpClipBlend(QLerpClipBlendPrivate &dd, Qt3DCore::QNode *parent)
: QAbstractClipBlendNode(dd, parent)
{
}
QLerpClipBlend::~QLerpClipBlend()
{
}
/*!
\qmlproperty real LerpClipBlend::blendFactor
Specifies the blending factor between 0 and 1 to control the blending of
two animation clips.
*/
/*!
\property QLerpClipBlend::blendFactor
Specifies the blending factor between 0 and 1 to control the blending of
two animation clips.
*/
float QLerpClipBlend::blendFactor() const
{
Q_D(const QLerpClipBlend);
return d->m_blendFactor;
}
/*!
\qmlproperty AbstractClipBlendNode LerpClipBlend::startClip
Holds the sub-tree that should be used as the start clip for this
lerp blend node. That is, the clip returned by this blend node when
the blendFactor is set to a value of 0.
*/
/*!
\property QLerpClipBlend::startClip
Holds the sub-tree that should be used as the start clip for this
lerp blend node. That is, the clip returned by this blend node when
the blendFactor is set to a value of 0.
*/
Qt3DAnimation::QAbstractClipBlendNode *QLerpClipBlend::startClip() const
{
Q_D(const QLerpClipBlend);
return d->m_startClip;
}
/*!
\qmlproperty AbstractClipBlendNode LerpClipBlend::endClip
Holds the sub-tree that should be used as the end clip for this
lerp blend node. That is, the clip returned by this blend node when
the blendFactor is set to a value of 1.
*/
/*!
\property QLerpClipBlend::endClip
Holds the sub-tree that should be used as the start clip for this
lerp blend node. That is, the clip returned by this blend node when
the blendFactor is set to a value of 1.
*/
Qt3DAnimation::QAbstractClipBlendNode *QLerpClipBlend::endClip() const
{
Q_D(const QLerpClipBlend);
return d->m_endClip;
}
void QLerpClipBlend::setBlendFactor(float blendFactor)
{
Q_D(QLerpClipBlend);
if (d->m_blendFactor == blendFactor)
return;
d->m_blendFactor = blendFactor;
emit blendFactorChanged(blendFactor);
}
void QLerpClipBlend::setStartClip(Qt3DAnimation::QAbstractClipBlendNode *startClip)
{
Q_D(QLerpClipBlend);
if (d->m_startClip == startClip)
return;
if (d->m_startClip)
d->unregisterDestructionHelper(d->m_startClip);
if (startClip && !startClip->parent())
startClip->setParent(this);
d->m_startClip = startClip;
// Ensures proper bookkeeping
if (d->m_startClip)
d->registerDestructionHelper(d->m_startClip, &QLerpClipBlend::setStartClip, d->m_startClip);
emit startClipChanged(startClip);
}
void QLerpClipBlend::setEndClip(Qt3DAnimation::QAbstractClipBlendNode *endClip)
{
Q_D(QLerpClipBlend);
if (d->m_endClip == endClip)
return;
if (d->m_endClip)
d->unregisterDestructionHelper(d->m_endClip);
if (endClip && !endClip->parent())
endClip->setParent(this);
d->m_endClip = endClip;
// Ensures proper bookkeeping
if (d->m_endClip)
d->registerDestructionHelper(d->m_endClip, &QLerpClipBlend::setEndClip, d->m_endClip);
emit endClipChanged(endClip);
}
} // Qt3DAnimation
QT_END_NAMESPACE
#include "moc_qlerpclipblend.cpp"
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