randominstancing_p.h

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// Copyright (C) 2020 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

// Qt-Security score:significant reason:default

//

//  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.

//

#ifndef RANDOMINSTANCING_P_H

#define RANDOMINSTANCING_P_H

#include <QtQuick3DHelpers/qtquick3dhelpersexports.h>

#include <QtQuick3D/QQuick3DInstancing>

QT_BEGIN_NAMESPACE

class Q_QUICK3DHELPERS_EXPORT QQuick3DInstanceRange : public QQuick3DObject

    Q_OBJECT

    QML_ADDED_IN_VERSION(6, 2)

    Q_PROPERTY(QVariant from READ from WRITE setFrom NOTIFY fromChanged)

    Q_PROPERTY(QVariant to READ to WRITE setTo NOTIFY toChanged)

    Q_PROPERTY(bool proportional READ proportional WRITE setProportional NOTIFY proportionalChanged)

    QML_NAMED_ELEMENT(InstanceRange)

public:

    explicit QQuick3DInstanceRange(QQuick3DObject *parent = nullptr);

    ~QQuick3DInstanceRange() override {}

    QVariant from() const

        return m_from;

    QVariant to() const

        return m_to;

    bool proportional() const

        return m_proportional;

public Q_SLOTS:

    void setFrom(QVariant from);

    void setTo(QVariant to);

    void setProportional(bool proportional);

Q_SIGNALS:

    void fromChanged();

    void toChanged();

    void proportionalChanged();

    void changed();

protected:

    QSSGRenderGraphObject *updateSpatialNode(QSSGRenderGraphObject *) override

        return nullptr;

private:

    QVariant m_from;

    QVariant m_to;

    bool m_proportional = false;

};

class QRandomGenerator;

class Q_QUICK3DHELPERS_EXPORT QQuick3DRandomInstancing : public QQuick3DInstancing

    Q_OBJECT

    Q_PROPERTY(int instanceCount READ instanceCount WRITE setInstanceCount NOTIFY instanceCountChanged)

    Q_PROPERTY(QQuick3DInstanceRange *position READ position WRITE setPosition NOTIFY positionChanged)

    Q_PROPERTY(QQuick3DInstanceRange *scale READ scale WRITE setScale NOTIFY scaleChanged)

    Q_PROPERTY(QQuick3DInstanceRange *rotation READ rotation WRITE setRotation NOTIFY rotationChanged)

    Q_PROPERTY(QQuick3DInstanceRange *color READ color WRITE setColor NOTIFY colorChanged)

    Q_PROPERTY(ColorModel colorModel READ colorModel WRITE setColorModel NOTIFY colorModelChanged)

    Q_PROPERTY(QQuick3DInstanceRange *customData READ customData WRITE setCustomData NOTIFY customDataChanged)

    Q_PROPERTY(QVector3D gridSpacing READ gridSpacing WRITE setGridSpacing NOTIFY gridSpacingChanged FINAL REVISION(6, 9))

    Q_PROPERTY(int randomSeed READ randomSeed WRITE setRandomSeed NOTIFY randomSeedChanged)

    QML_NAMED_ELEMENT(RandomInstancing)

    QML_ADDED_IN_VERSION(6, 2)

public:

    enum class ColorModel { RGB, HSV, HSL };

    Q_ENUM(ColorModel)

    explicit QQuick3DRandomInstancing(QQuick3DObject *parent = nullptr);

    ~QQuick3DRandomInstancing();

    QByteArray getInstanceBuffer(int *instanceCount) override;

    int instanceCount() const

        return m_randomCount;

    int randomSeed() const

        return m_randomSeed;

    QQuick3DInstanceRange *position() const

        return m_position;

    QQuick3DInstanceRange* scale() const

        return m_scale;

    QQuick3DInstanceRange* rotation() const

        return m_rotation;

    QQuick3DInstanceRange* color() const

        return m_color;

    QQuick3DInstanceRange* customData() const

        return m_customData;

    ColorModel colorModel() const

        return m_colorModel;

    QVector3D gridSpacing() const;

    void setGridSpacing(const QVector3D &newGridSpacing);

public Q_SLOTS:

    void setInstanceCount(int instanceCount);

    void setRandomSeed(int randomSeed);

    void setPosition(QQuick3DInstanceRange *position);

    void setScale(QQuick3DInstanceRange *scale);

    void setRotation(QQuick3DInstanceRange *rotation);

    void setColor(QQuick3DInstanceRange *color);

    void setCustomData(QQuick3DInstanceRange *customData);

    void setColorModel(ColorModel colorModel);

Q_SIGNALS:

    void instanceCountChanged();

    void randomSeedChanged();

    void positionChanged();

    void scaleChanged();

    void rotationChanged();

    void colorChanged();

    void customDataChanged();

    void colorModelChanged();

    void gridSpacingChanged();

private Q_SLOTS:

    void handleChange();

private:

    void generateInstanceTable();

    int m_randomCount = 0;

    int m_randomSeed = -1;

    bool m_dirty = true;

    bool m_gridMode = false;

    QByteArray m_instanceData;

    QQuick3DInstanceRange *m_position = nullptr;

    QQuick3DInstanceRange *m_scale = nullptr;

    QQuick3DInstanceRange *m_rotation = nullptr;

    QQuick3DInstanceRange *m_color = nullptr;

    QQuick3DInstanceRange *m_customData = nullptr;

    ColorModel m_colorModel = ColorModel::RGB;

    QVector3D m_gridSpacing;

};

QT_END_NAMESPACE

#endif // RANDOMINSTANCING_P_H