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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 "fcurve_p.h"
#include <private/bezierevaluator_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DAnimation {
namespace Animation {
FCurve::FCurve()
: m_rangeFinder(m_localTimes)
{
}
float FCurve::evaluateAtTime(float localTime) const
{
// Find keyframes that sandwich the requested localTime
int keyframe0 = m_rangeFinder.findLowerBound(localTime);
BezierEvaluator evaluator(m_localTimes[keyframe0], m_keyframes[keyframe0],
m_localTimes[keyframe0 + 1], m_keyframes[keyframe0 + 1]);
return evaluator.valueForTime(localTime);
}
float FCurve::startTime() const
{
if (!m_localTimes.isEmpty())
return m_localTimes.first();
return 0.0f;
}
float FCurve::endTime() const
{
if (!m_localTimes.isEmpty())
return m_localTimes.last();
return 0.0f;
}
void FCurve::appendKeyframe(float localTime, const Keyframe &keyframe)
{
m_localTimes.append(localTime);
m_keyframes.append(keyframe);
}
} // namespace Animation
} // namespace Qt3DAnimation
QT_END_NAMESPACE
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