/***************************************************************************

 * Copyright (c) 2009 Enrico Ros                                           *

 *         2009 Enrico Ros <enrico.ros@email.it>                           *

 *         2009 Alberto Scarpa <skaal.sl@gmail.com>                        *

 *                                                                         *

 * Permission is hereby granted, free of charge, to any person             *

 * obtaining a copy of this software and associated documentation          *

 * files (the "Software"), to deal in the Software without                 *

 * restriction, including without limitation the rights to use,            *

 * copy, modify, merge, publish, distribute, sublicense, and/or sell       *

 * copies of the Software, and to permit persons to whom the               *

 * Software is furnished to do so, subject to the following                *

 * conditions:                                                             *

 *                                                                         *

 * The above copyright notice and this permission notice shall be          *

 * included in all copies or substantial portions of the Software.         *

 *                                                                         *

 ***************************************************************************/

#ifndef __Ocr_h__

#define __Ocr_h__

#include <QObject>

#include <QFont>

#include <QImage>

#include <QRect>

#include <QList>

#include <QChar>

#include <QFontDatabase>

class OcrGlyph;

struct OcrResult {

    QChar character;

    double confidence;

};

class Ocr

{

    public:

        Ocr();

        ~Ocr();

        // train the OCR

        void trainFont( const QFont & font, QFontDatabase::WritingSystem writingSystem = QFontDatabase::Latin );

        void trainGlyph( const QImage & image, const QChar & character );

        void clearTraning();

        // recognize a glyph

        OcrResult recognizeGlyph( const QImage & image, const QRect & rect = QRect() ) const;

    private:

        QList< OcrGlyph * > m_glyphs;

};

#endif