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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Quick 3D.
**
** $QT_BEGIN_LICENSE:GPL$
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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#ifndef QSSGCAMERA_H
#define QSSGCAMERA_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQuick3D/private/qquick3dnode_p.h>
QT_BEGIN_NAMESPACE
struct QSSGRenderCamera;
class Q_QUICK3D_EXPORT QQuick3DCamera : public QQuick3DNode
{
Q_OBJECT
Q_PROPERTY(bool frustumCullingEnabled READ frustumCullingEnabled WRITE setFrustumCullingEnabled NOTIFY frustumCullingEnabledChanged)
public:
enum FieldOfViewOrientation {
Vertical,
Horizontal
};
Q_ENUM(FieldOfViewOrientation)
explicit QQuick3DCamera(QQuick3DNode *parent = nullptr);
Q_INVOKABLE QVector3D mapToViewport(const QVector3D &scenePos) const;
Q_INVOKABLE QVector3D mapFromViewport(const QVector3D &viewportPos) const;
QVector3D mapToViewport(const QVector3D &scenePos,
qreal width,
qreal height);
QVector3D mapFromViewport(const QVector3D &viewportPos,
qreal width,
qreal height);
Q_REVISION(1) Q_INVOKABLE void lookAt(const QVector3D &scenePos);
Q_REVISION(1) Q_INVOKABLE void lookAt(QQuick3DNode *node);
QSSGRenderCamera *cameraNode() const;
void setCameraNode(QSSGRenderCamera *camera) { m_cameraNode = camera; }
// It will be used only after the scene was drawn.
// It means that the spatialNode of this camera already was created.
void updateGlobalVariables(const QRectF &inViewport);
bool frustumCullingEnabled() const;
public Q_SLOTS:
void setFrustumCullingEnabled(bool frustumCullingEnabled);
Q_SIGNALS:
void frustumCullingEnabledChanged();
protected:
QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *node) override;
virtual bool checkSpatialNode(QSSGRenderCamera *camera) = 0;
private:
QSSGRenderCamera *m_cameraNode = nullptr;
bool m_frustumCullingEnabled = false;
};
QT_END_NAMESPACE
#endif // QSSGCAMERA_H