FreetypeGlyphsProvider.h

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// FreetypeGlyphsProvider.h:  Freetype glyphs manager
// 
//   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
//   Free Software Foundation, Inc
// 
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

#ifndef GNASH_FREETYPE_H
#define GNASH_FREETYPE_H

#include <string>
#include <memory> // for unique_ptr
#include <mutex>
#include <cstdint>

#ifdef USE_FREETYPE 
# include <ft2build.h>
# include FT_FREETYPE_H
# include FT_GLYPH_H
#endif

// Forward declarations
namespace gnash {
    namespace SWF {
        class ShapeRecord;
    }
}


namespace gnash {

//
class FreetypeGlyphsProvider 
{

public:

    //
    static std::unique_ptr<FreetypeGlyphsProvider> createFace(
            const std::string& name, bool bold, bool italic);

    //
    ~FreetypeGlyphsProvider();


    //
    std::unique_ptr<SWF::ShapeRecord> getGlyph(std::uint16_t code,
            float& advance);

    float ascent() const;
    
    float descent() const;

    //
    unsigned short unitsPerEM() const;

private:

    //
    FreetypeGlyphsProvider(const std::string& fontname, bool bold, bool italic);

#ifdef USE_FREETYPE 

    float scale;

    //
    bool getFontFilename(const std::string& name, bool bold, bool italic,
            std::string& filename);

    static void init();

    static void close();

    static std::mutex    m_lib_mutex;

    static FT_Library    m_lib;

    FT_Face    _face;

#endif // USE_FREETYPE

};

} // namespace gnash


#endif    // GNASH_FREETYPE_H