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/****************************************************************************
**
** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
** 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 "orbittransformcontroller.h"
#include <Qt3DCore/qtransform.h>
QT_BEGIN_NAMESPACE
OrbitTransformController::OrbitTransformController(QObject *parent)
: QObject(parent)
, m_target(Q_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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