qrawfont.h - mozsearch

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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

#ifndef QRAWFONT_H

#define QRAWFONT_H

#include <QtGui/qtguiglobal.h>

#include <QtCore/qstring.h>

#include <QtCore/qiodevice.h>

#include <QtCore/qglobal.h>

#include <QtCore/qobject.h>

#include <QtCore/qpoint.h>

#include <QtGui/qfont.h>

#include <QtGui/qtransform.h>

#include <QtGui/qfontdatabase.h>

#if !defined(QT_NO_RAWFONT)

QT_BEGIN_NAMESPACE

class QRawFontPrivate;

class Q_GUI_EXPORT QRawFont

public:

    enum AntialiasingType {

        PixelAntialiasing,

        SubPixelAntialiasing

};

    enum LayoutFlag {

        SeparateAdvances = 0,

        KernedAdvances = 1,

        UseDesignMetrics = 2

};

    Q_DECLARE_FLAGS(LayoutFlags, LayoutFlag)

    QRawFont();

    QRawFont(const QString &fileName,

             qreal pixelSize,

             QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting);

    QRawFont(const QByteArray &fontData,

             qreal pixelSize,

             QFont::HintingPreference hintingPreference = QFont::PreferDefaultHinting);

    QRawFont(const QRawFont &other);

    QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(QRawFont)

    QRawFont &operator=(const QRawFont &other);

    ~QRawFont();

    void swap(QRawFont &other) noexcept { d.swap(other.d); }

    bool isValid() const;

    bool operator==(const QRawFont &other) const;

    inline bool operator!=(const QRawFont &other) const

    { return !operator==(other); }

    quint32 glyphCount() const;

    QString familyName() const;

    QString styleName() const;

    QFont::Style style() const;

    int weight() const;

    QList<quint32> glyphIndexesForString(const QString &text) const;

    inline QList<QPointF> advancesForGlyphIndexes(const QList<quint32> &glyphIndexes) const;

    QList<QPointF> advancesForGlyphIndexes(const QList<quint32> &glyphIndexes,

                                           LayoutFlags layoutFlags) const;

    bool glyphIndexesForChars(const QChar *chars, int numChars, quint32 *glyphIndexes, int *numGlyphs) const;

    bool advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs) const;

    bool advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs, LayoutFlags layoutFlags) const;

    QImage alphaMapForGlyph(quint32 glyphIndex,

                            AntialiasingType antialiasingType = SubPixelAntialiasing,

                            const QTransform &transform = QTransform()) const;

    QPainterPath pathForGlyph(quint32 glyphIndex) const;

    QRectF boundingRect(quint32 glyphIndex) const;

    void setPixelSize(qreal pixelSize);

    qreal pixelSize() const;

    QFont::HintingPreference hintingPreference() const;

    qreal ascent() const;

    qreal capHeight() const;

    qreal descent() const;

    qreal leading() const;

    qreal xHeight() const;

    qreal averageCharWidth() const;

    qreal maxCharWidth() const;

    qreal lineThickness() const;

    qreal underlinePosition() const;

    qreal unitsPerEm() const;

    QString glyphName(quint32 glyphIndex) const;

    void loadFromFile(const QString &fileName,

                      qreal pixelSize,

                      QFont::HintingPreference hintingPreference);

    void loadFromData(const QByteArray &fontData,

                      qreal pixelSize,

                      QFont::HintingPreference hintingPreference);

    bool supportsCharacter(uint ucs4) const;

    bool supportsCharacter(QChar character) const;

    QList<QFontDatabase::WritingSystem> supportedWritingSystems() const;

    QByteArray fontTable(const char *tagName) const;

    QByteArray fontTable(QFont::Tag tag) const;

    static QRawFont fromFont(const QFont &font,

                             QFontDatabase::WritingSystem writingSystem = QFontDatabase::Any);

private:

    friend class QRawFontPrivate;

    friend class QTextLayout;

    friend class QTextEngine;

    QExplicitlySharedDataPointer<QRawFontPrivate> d;

};

Q_DECLARE_SHARED(QRawFont)

Q_DECLARE_OPERATORS_FOR_FLAGS(QRawFont::LayoutFlags)

Q_GUI_EXPORT size_t qHash(const QRawFont &font, size_t seed = 0) noexcept;

inline QList<QPointF> QRawFont::advancesForGlyphIndexes(const QList<quint32> &glyphIndexes) const

    return advancesForGlyphIndexes(glyphIndexes, QRawFont::SeparateAdvances);

QT_END_NAMESPACE

#endif // QT_NO_RAWFONT

#endif // QRAWFONT_H