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/****************************************************************************
**
** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "orbittransformcontroller.h"
#include <Qt3DCore/qtransform.h>
QT_BEGIN_NAMESPACE
OrbitTransformController::OrbitTransformController(QObject *parent)
: QObject(parent)
, m_target(nullptr)
, m_matrix()
, m_radius(1.0f)
, m_angle(0.0f)
{
}
void OrbitTransformController::setTarget(Qt3DCore::QTransform *target)
{
if (m_target != target) {
m_target = target;
emit targetChanged();
}
}
Qt3DCore::QTransform *OrbitTransformController::target() const
{
return m_target;
}
void OrbitTransformController::setRadius(float radius)
{
if (!qFuzzyCompare(radius, m_radius)) {
m_radius = radius;
updateMatrix();
emit radiusChanged();
}
}
float OrbitTransformController::radius() const
{
return m_radius;
}
void OrbitTransformController::setAngle(float angle)
{
if (!qFuzzyCompare(angle, m_angle)) {
m_angle = angle;
updateMatrix();
emit angleChanged();
}
}
float OrbitTransformController::angle() const
{
return m_angle;
}
void OrbitTransformController::updateMatrix()
{
m_matrix.setToIdentity();
m_matrix.rotate(m_angle, QVector3D(0.0f, 1.0f, 0.0f));
m_matrix.translate(m_radius, 0.0f, 0.0f);
m_target->setMatrix(m_matrix);
}
QT_END_NAMESPACE
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