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// Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
// Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#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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