extrudedtextgeometry_p.h

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// Copyright (C) 2024 The Qt Company Ltd.

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

// Qt-Security score:significant reason:default

#ifndef EXTRUDEDTEXTGEOMETRY_P_H

#define EXTRUDEDTEXTGEOMETRY_P_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 <QtQuick3DHelpers/qtquick3dhelpersexports.h>

#include <QQuick3DGeometry>

#include <QQmlEngine>

#include <QVector3D>

#include <QFont>

#if QT_CONFIG(concurrent)

#include <QFuture>

#include <QFutureWatcher>

#endif

QT_BEGIN_NAMESPACE

class Q_QUICK3DHELPERS_EXPORT ExtrudedTextGeometry : public QQuick3DGeometry

    Q_OBJECT

    Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)

    Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged)

    Q_PROPERTY(float depth READ depth WRITE setDepth NOTIFY depthChanged)

    Q_PROPERTY(float scale READ scale WRITE setScale NOTIFY scaleChanged FINAL)

    Q_PROPERTY(bool asynchronous READ asynchronous WRITE setAsynchronous NOTIFY asynchronousChanged)

    Q_PROPERTY(Status status READ status NOTIFY statusChanged)

    QML_ELEMENT

    QML_ADDED_IN_VERSION(6, 9)

public:

    enum Status { Null, Ready, Loading, Error };

    Q_ENUM(Status)

    explicit ExtrudedTextGeometry(QQuick3DObject *parent = nullptr);

    ~ExtrudedTextGeometry() override;

    QString text() const;

    void setText(const QString &newText);

    QFont font() const;

    void setFont(const QFont &newFont);

    float depth() const;

    void setDepth(float newDepth);

    float scale() const;

    void setScale(float newScale);

    bool asynchronous() const;

    void setAsynchronous(bool newAsynchronous);

    Status status() const;

    using IndexType = quint32;

private Q_SLOTS:

    void doUpdateGeometry();

    void requestFinished();

Q_SIGNALS:

    void textChanged();

    void fontChanged();

    void depthChanged();

    void scaleChanged();

    void asynchronousChanged();

    void statusChanged();

private:

    struct GeometryData {

        QByteArray vertexData;

        QByteArray indexData;

        QVector3D boundsMin;

        QVector3D boundsMax;

};

    void scheduleGeometryUpdate();

    void updateGeometry(const GeometryData &geometryData);

    static ExtrudedTextGeometry::GeometryData generateExtrudedTextGeometry(const QString &text,

                                                                           const QFont &font,

                                                                           float depth,

                                                                           float scale);

#if QT_CONFIG(concurrent)

    static void generateExtrudedTextGeometryAsync(QPromise<ExtrudedTextGeometry::GeometryData> &promise,

                                                  const QString &text,

                                                  const QFont &font,

                                                  float depth,

                                                  float scale);

#endif

    QString m_text;

    QFont m_font = QFont(QStringLiteral("Arial"), 4);

    float m_depth = 1.0f;

    float m_scale = 1.0f;

    bool m_asynchronous = true;

    Status m_status = Null;

#if QT_CONFIG(concurrent)

    QFuture<GeometryData> m_geometryDataFuture;

    QFutureWatcher<GeometryData> m_geometryDataWatcher;

#endif

    bool m_geometryUpdateRequested = false;

    bool m_pendingAsyncUpdate = false;

};

QT_END_NAMESPACE

#endif // EXTRUDEDTEXTGEOMETRY_P_H