| 1 | // Copyright (C) 2019 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QSSGCAMERA_H |
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| 5 | #define QSSGCAMERA_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtQuick3D/private/qquick3dnode_p.h> |
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| 19 | |
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| 20 | QT_BEGIN_NAMESPACE |
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| 21 | |
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| 22 | struct QSSGRenderCamera; |
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| 23 | class Q_QUICK3D_EXPORT QQuick3DCamera : public QQuick3DNode |
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| 24 | { |
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| 25 | Q_OBJECT |
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| 26 | Q_PROPERTY(bool frustumCullingEnabled READ frustumCullingEnabled WRITE setFrustumCullingEnabled NOTIFY frustumCullingEnabledChanged) |
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| 27 | Q_PROPERTY(QQuick3DNode *lookAtNode READ lookAtNode WRITE setLookAtNode NOTIFY lookAtNodeChanged REVISION(6, 4)) |
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| 28 | Q_PROPERTY(float levelOfDetailBias READ levelOfDetailBias WRITE setLevelOfDetailBias NOTIFY levelOfDetailBiasChanged REVISION(6, 5)) |
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| 29 | QML_NAMED_ELEMENT(Camera) |
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| 30 | QML_UNCREATABLE("Camera is Abstract" ) |
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| 31 | public: |
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| 32 | Q_INVOKABLE QVector3D mapToViewport(const QVector3D &scenePos) const; |
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| 33 | Q_INVOKABLE QVector3D mapFromViewport(const QVector3D &viewportPos) const; |
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| 34 | QVector3D mapToViewport(const QVector3D &scenePos, |
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| 35 | qreal width, |
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| 36 | qreal height); |
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| 37 | QVector3D mapFromViewport(const QVector3D &viewportPos, |
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| 38 | qreal width, |
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| 39 | qreal height); |
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| 40 | |
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| 41 | Q_INVOKABLE void lookAt(const QVector3D &scenePos); |
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| 42 | Q_INVOKABLE void lookAt(QQuick3DNode *node); |
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| 43 | |
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| 44 | // It will be used only after the scene was drawn. |
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| 45 | // It means that the spatialNode of this camera already was created. |
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| 46 | void updateGlobalVariables(const QRectF &inViewport); |
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| 47 | |
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| 48 | bool frustumCullingEnabled() const; |
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| 49 | QQuick3DNode *lookAtNode() const; |
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| 50 | Q_REVISION(6, 5) float levelOfDetailBias() const; |
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| 51 | |
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| 52 | public Q_SLOTS: |
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| 53 | void setFrustumCullingEnabled(bool frustumCullingEnabled); |
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| 54 | void setLookAtNode(QQuick3DNode *node); |
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| 55 | Q_REVISION(6, 5) void setLevelOfDetailBias(float newLevelOFDetailBias); |
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| 56 | |
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| 57 | Q_SIGNALS: |
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| 58 | void frustumCullingEnabledChanged(); |
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| 59 | Q_REVISION(6, 4) void lookAtNodeChanged(); |
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| 60 | Q_REVISION(6, 5) void levelOfDetailBiasChanged(); |
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| 61 | |
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| 62 | protected: |
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| 63 | explicit QQuick3DCamera(QQuick3DNodePrivate &dd, QQuick3DNode *parent = nullptr); |
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| 64 | |
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| 65 | QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *node) override; |
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| 66 | |
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| 67 | private Q_SLOTS: |
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| 68 | void updateLookAt(); |
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| 69 | |
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| 70 | private: |
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| 71 | bool m_frustumCullingEnabled = false; |
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| 72 | QQuick3DNode *m_lookAtNode = nullptr; |
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| 73 | float m_levelOfDetailBias = 1.0f; |
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| 74 | }; |
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| 75 | |
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| 76 | QT_END_NAMESPACE |
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| 77 | |
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| 78 | #endif // QSSGCAMERA_H |
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| 79 | |
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