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/****************************************************************************
**
** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qlerpclipblend.h"
#include "qlerpclipblend_p.h"
#include <Qt3DAnimation/qclipblendnodecreatedchange.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()
{
}
Qt3DCore::QNodeCreatedChangeBasePtr QLerpClipBlend::createNodeCreationChange() const
{
Q_D(const QLerpClipBlend);
auto creationChange = QClipBlendNodeCreatedChangePtr<QLerpClipBlendData>::create(this);
QLerpClipBlendData &data = creationChange->data;
data.startClipId = Qt3DCore::qIdForNode(d->m_startClip);
data.endClipId = Qt3DCore::qIdForNode(d->m_endClip);
data.blendFactor = d->m_blendFactor;
return creationChange;
}
/*!
\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
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