orbittransformcontroller.h

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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

++

++ #ifndef ORBITTRANSFORMCONTROLLER_H

++ #define ORBITTRANSFORMCONTROLLER_H

++

++ #include <QObject>

++ #include <QMatrix4x4>

++ #include <Qt3DCore/QTransform>

++

++ QT_BEGIN_NAMESPACE

++

++ class OrbitTransformController : public QObject

++ {

++     Q_OBJECT

++     Q_PROPERTY(Qt3DCore::QTransform* target READ target WRITE setTarget NOTIFY targetChanged)

++     Q_PROPERTY(float radius READ radius WRITE setRadius NOTIFY radiusChanged)

++     Q_PROPERTY(float angle READ angle WRITE setAngle NOTIFY angleChanged)

++

++ public:

++     OrbitTransformController(QObject *parent = 0);

++

++     void setTarget(Qt3DCore::QTransform *target);

++     Qt3DCore::QTransform *target() const;

++

++     void setRadius(float radius);

++     float radius() const;

++

++     void setAngle(float angle);

++     float angle() const;

++

++ signals:

++     void targetChanged();

++     void radiusChanged();

++     void angleChanged();

++

++ protected:

++     void updateMatrix();

++

++ private:

++     Qt3DCore::QTransform *m_target;

++     QMatrix4x4 m_matrix;

++     float m_radius;

++     float m_angle;

++ };

++

++ QT_END_NAMESPACE

++

++ #endif // ORBITTRANSFORMCONTROLLER_H