source: trunk/src/gui/text/qfontengine_ft_p.h@ 443

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#ifndef QFONTENGINE_FT_P_H
#define QFONTENGINE_FT_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 "qfontengine_p.h"

#ifndef QT_NO_FREETYPE

#include <ft2build.h>
#include FT_FREETYPE_H

#if defined(Q_WS_X11)
#include <private/qt_x11_p.h>
#endif

#include <unistd.h>

#ifndef QT_NO_FONTCONFIG
#include <fontconfig/fontconfig.h>
#endif

#include <qmutex.h>

#include <harfbuzz-shaper.h>

QT_BEGIN_NAMESPACE

/*
 * This struct represents one font file on disk (like Arial.ttf) and is shared between all the font engines
 * that show this font file (at different pixel sizes).
 */
struct QFreetypeFace
{
    void computeSize(const QFontDef &fontDef, int *xsize, int *ysize, bool *outline_drawing);
    QFontEngine::Properties properties() const;
    bool getSfntTable(uint tag, uchar *buffer, uint *length) const;

    static QFreetypeFace *getFace(const QFontEngine::FaceId &face_id);
    void release(const QFontEngine::FaceId &face_id);

    // locks the struct for usage. Any read/write operations require locking.
    void lock()
    {
        _lock.lock();
    }
    void unlock()
    {
        _lock.unlock();
    }

    FT_Face face;
    HB_Face hbFace;
#ifndef QT_NO_FONTCONFIG
    FcCharSet *charset;
#endif
    int xsize; // 26.6
    int ysize; // 26.6
    FT_Matrix matrix;
    FT_CharMap unicode_map;
    FT_CharMap symbol_map;

    enum { cmapCacheSize = 0x200 };
    glyph_t cmapCache[cmapCacheSize];

    int fsType() const;