qsgdistancefieldglyphnode_p.h

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#ifndef QSGDISTANCEFIELDGLYPHNODE_P_H

#define QSGDISTANCEFIELDGLYPHNODE_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 <private/qsgadaptationlayer_p.h>

#include <QtQuick/qsgtexture.h>

#include <QtQuick/private/qquicktext_p.h>

QT_BEGIN_NAMESPACE

Q_DECLARE_LOGGING_CATEGORY(lcSgText)

class QSGRenderContext;

class QSGDistanceFieldTextMaterial;

class QSGDistanceFieldGlyphNode : public QSGGlyphNode, public QSGDistanceFieldGlyphConsumer

public:

    QSGDistanceFieldGlyphNode(QSGRenderContext *context);

    ~QSGDistanceFieldGlyphNode();

    QPointF baseLine() const override { return m_baseLine; }

    void setGlyphs(const QPointF &position, const QGlyphRun &glyphs) override;

    void setColor(const QColor &color) override;

    void setPreferredAntialiasingMode(AntialiasingMode mode) override;

    void setRenderTypeQuality(int renderTypeQuality) override;

    void setStyle(QQuickText::TextStyle style) override;

    void setStyleColor(const QColor &color) override;

    void update() override;

    void preprocess() override;

    void invalidateGlyphs(const QList<quint32> &glyphs) override;

    void updateGeometry();

    void recycle() override;

private:

    enum DistanceFieldGlyphNodeType {

        RootGlyphNode,

        SubGlyphNode

};

    void cleanup();

    void setGlyphNodeType(DistanceFieldGlyphNodeType type) { m_glyphNodeType = type; }

    void updateMaterial();

    DistanceFieldGlyphNodeType m_glyphNodeType;

    QColor m_color;

    QPointF m_baseLine;

    QSGRenderContext *m_context;

    QSGDistanceFieldTextMaterial *m_material;

    QPointF m_originalPosition;

    QPointF m_position;

    QGlyphRun m_glyphs;

    QSGDistanceFieldGlyphCache *m_glyph_cache;

    QSGGeometry m_geometry;

    QQuickText::TextStyle m_style;

    QColor m_styleColor;

    AntialiasingMode m_antialiasingMode;

    QRectF m_boundingRect;

    const QSGDistanceFieldGlyphCache::Texture *m_texture;

    int m_renderTypeQuality;

    struct GlyphInfo {

        QList<quint32> indexes;

        QList<QPointF> positions;

};

    QSet<quint32> m_allGlyphIndexesLookup;

    // m_glyphs holds pointers to the GlyphInfo.indexes and positions arrays, so we need to hold on to them

    QHash<const QSGDistanceFieldGlyphCache::Texture *, GlyphInfo> m_glyphsInOtherTextures;

    uint m_dirtyGeometry: 1;

    uint m_dirtyMaterial: 1;

};

QT_END_NAMESPACE

#endif