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# qfont.h

This is the verbatim text of the qfont.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/src/kernel/qfont.h   2.3.1   edited 2001-04-19 $
    **
    ** Definition of QFont class
    **
    ** Created : 940514
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the kernel module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    **********************************************************************/

    #ifndef QFONT_H
    #define QFONT_H

    #ifndef QT_H
    #include "qwindowdefs.h"
    #include "qstring.h"
    #endif // QT_H

    class QStringList;
    struct QFontDef;
    struct QFontData;
    class QFontInternal;
    class QRenderedFont;

    class Q_EXPORT QFont                                    // font class
    {
    public:
        enum CharSet   { ISO_8859_1,  Latin1 = ISO_8859_1, AnyCharSet,
                         ISO_8859_2,  Latin2 = ISO_8859_2,
                         ISO_8859_3,  Latin3 = ISO_8859_3,
                         ISO_8859_4,  Latin4 = ISO_8859_4,
                         ISO_8859_5,
                         ISO_8859_6,
                         ISO_8859_7,
                         ISO_8859_8,
                         ISO_8859_9,  Latin5 = ISO_8859_9,
                         ISO_8859_10, Latin6 = ISO_8859_10,
                         ISO_8859_11, TIS620 = ISO_8859_11,
                         ISO_8859_12,
                         ISO_8859_13, Latin7 = ISO_8859_13,
                         ISO_8859_14, Latin8 = ISO_8859_14,
                         ISO_8859_15, Latin9 = ISO_8859_15,
                         KOI8R,
                         Set_Ja, Set_1 = Set_Ja,
                         Set_Ko,
                         Set_Th_TH,
                         Set_Zh,
                         Set_Zh_TW,
                         Set_N = Set_Zh_TW,
                         Unicode,
                         /* The following will need to be re-ordered later,
                            since we accidentally left no room below "Unicode".
                            (For binary-compatibility that cannot change yet).
                            The above will be obsoleted and a same-named list
                            added below.
                         */
                         Set_GBK,
                         Set_Big5,

                         TSCII,
                         KOI8U,
                         CP1251,
                         PT154,
                         /* The following are font-specific encodings that
                            we shouldn't need in a perfect world.
                         */
                         // 8-bit fonts
                         JIS_X_0201 = 0xa0,
                         // 16-bit fonts
                         JIS_X_0208 = 0xc0, Enc16 = JIS_X_0208,
                         KSC_5601,
                         GB_2312,
                         Big5
        };
        enum StyleHint { Helvetica, Times, Courier, OldEnglish,  System, AnyStyle,
                         SansSerif  = Helvetica,
                         Serif      = Times,
                         TypeWriter = Courier,
                         Decorative = OldEnglish};
        enum StyleStrategy { PreferDefault = 0x0001,
                              PreferBitmap = 0x0002,
                              PreferDevice = 0x0004,
                              PreferOutline = 0x0008,
                              ForceOutline = 0x0010,
                              PreferMatch = 0x0020,
                              PreferQuality = 0x0040 };
        enum Weight    { Light = 25, Normal = 50, DemiBold = 63,
                         Bold  = 75, Black  = 87 };
        QFont();                                    // default font
        QFont( const QString &family, int pointSize = 12,
               int weight = Normal, bool italic = FALSE );
        QFont( const QString &family, int pointSize,
               int weight, bool italic, CharSet charSet );
        QFont( const QFont & );
        ~QFont();
        QFont      &operator=( const QFont & );

        QString     family()        const;
        void        setFamily( const QString &);
        int         pointSize()     const;
        float       pointSizeFloat()        const;
        void        setPointSize( int );
        void        setPointSizeFloat( float );
        int         pixelSize() const;
        void        setPixelSize( int );
        void        setPixelSizeFloat( float );
        int         weight()        const;
        void        setWeight( int );
        bool        bold()          const;
        void        setBold( bool );
        bool        italic()        const;
        void        setItalic( bool );
        bool        underline()     const;
        void        setUnderline( bool );
        bool        strikeOut()     const;
        void        setStrikeOut( bool );
        bool        fixedPitch()    const;
        void        setFixedPitch( bool );
        StyleHint   styleHint()     const;
        void        setStyleHint( StyleHint );
        StyleStrategy styleStrategy() const;
        void        setStyleHint( StyleHint, StyleStrategy );
        CharSet     charSet()       const;
        void        setCharSet( CharSet );

        static CharSet charSetForLocale();

        bool        rawMode()      const;
        void        setRawMode( bool );

        bool        exactMatch()    const;

        bool        operator==( const QFont & ) const;
        bool        operator!=( const QFont & ) const;
        bool        isCopyOf( const QFont & ) const;

    #if defined(_WS_WIN_)
        HFONT       handle() const;
    #elif defined(_WS_MAC_)
        HANDLE      handle() const;
    #elif defined(_WS_X11_)
        HANDLE      handle() const;
    #elif defined(_WS_QWS_)
        HANDLE      handle() const;
    #endif

        void        setRawName( const QString & );
        QString     rawName() const;

        QString     key() const;

        static QString encodingName( CharSet );

        static QFont defaultFont();
        static void setDefaultFont( const QFont & );

        static QString substitute( const QString &familyName );
        static void insertSubstitution( const QString&, const QString &);
        static void removeSubstitution( const QString &);
        static QStringList substitutions();

        static void initialize();
        static void locale_init();
        static void cleanup();
        static void cacheStatistics();

    #if defined(_WS_QWS_)
        void qwsRenderToDisk(bool all=TRUE);
    #endif

    protected:
        bool        dirty()                 const;

        QString     defaultFamily()         const;
        QString     lastResortFamily()      const;
        QString     lastResortFont()        const;
        int         deciPointSize()         const;

    private:
        QFont( QFontData * );
        void        init();
        void        detach();
        void        initFontInfo() const;
        void        load() const;
    #if defined(_WS_MAC_)
        void        macSetFont(void *);
    #endif
    #if defined(_WS_WIN_)
        HFONT       create( bool *, HDC=0, bool=FALSE ) const;
        void       *textMetric() const;
    #endif

        friend class QFont_Private;
        friend class QFontInternal;
        friend class QFontMetrics;
        friend class QFontInfo;
        friend class QPainter;
    #if defined(_WS_X11_) && defined(QT_XFT)
        friend void * qt_ft_font (const QFont *f);
    #endif

    #ifndef QT_NO_DATASTREAM
        friend Q_EXPORT QDataStream &operator<<( QDataStream &, const QFont & );
        friend Q_EXPORT QDataStream &operator>>( QDataStream &, QFont & );
    #endif
        QFontData    *d;                            // internal font data
        static CharSet defaultCharSet;
    };

    inline bool QFont::bold() const
    { return weight() > Normal; }

    inline void QFont::setBold( bool enable )
    { setWeight( enable ? Bold : Normal ); }

    /*****************************************************************************
      QFont stream functions
     *****************************************************************************/

    #ifndef QT_NO_DATASTREAM
    Q_EXPORT QDataStream &operator<<( QDataStream &, const QFont & );
    Q_EXPORT QDataStream &operator>>( QDataStream &, QFont & );
    #endif

    #endif // QFONT_H