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Barre.h

// -*- c-basic-offset: 4 -*-

/*
    Rosegarden
    A sequencer and musical notation editor.

    This program is Copyright 2000-2007
        Guillaume Laurent   <glaurent@telegraph-road.org>,
        Chris Cannam        <cannam@all-day-breakfast.com>,
        Richard Bown        <bownie@bownie.com>

    The moral right of the authors to claim authorship of this work
    has been asserted.

    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 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef GUITAR_BARRE_H_
#define GUITAR_BARRE_H_

#include <qdom.h>
#include <qstring.h>
#include <qpainter.h>

namespace Rosegarden
{
    class PropertyName;

namespace Guitar
{
    class Barre
    {
    public:
        static const PropertyName BARRE_FRET;
        static const PropertyName BARRE_START;
        static const PropertyName BARRE_END;

        //! Constructor
        Barre ();

        Barre (unsigned int fret, unsigned int start, unsigned int end);

        //! Create Barre object from XML data
        void load (QDomNode const& obj);

        //! Save Barre object as XML data
        void save (QDomNode& obj);

        //! Return present fret number where Barre is positioned
        unsigned int getFret (void) const;

        //! Return string number where Barre starts
        unsigned int getStart (void) const;

        //! Return string number where Barre ends
        unsigned int getEnd (void) const;

        //! Set Barre data
        void setBarre (unsigned int fret, unsigned int start, unsigned int end);

        //! Display Barre object using QPainter object
        void drawContents (QPainter* p,
                           unsigned int startFret,
                           unsigned int stringCount,
                           unsigned int fretDisplayed);

        //! Set the base fret for Barre object
        void setFirstFret (int const& fretChange);

        //! Display Barre object data as a text string
        QString toString (void) const;

        bool operator== (Barre const& rhs) const;

    private:

        unsigned int m_fret;
        unsigned int m_start;
        unsigned int m_end;

    };

}

}

#endif /* GUITAR_BAR_H */

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