view base/Clipboard.h @ 1247:8f076d02569a piper

Make SVDEBUG always write to a log file -- formerly this was disabled in NDEBUG builds. I think there's little use to that, it just means that we keep adding more cerr debug output because we aren't getting the log we need. And SVDEBUG logging is not usually used in tight loops, I don't think the performance overhead is too serious.

Also update the About box.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    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 _CLIPBOARD_H_
#define _CLIPBOARD_H_

#include <QString>
#include <vector>

#include "BaseTypes.h"

class Clipboard
{
public:
    class Point
    {
    public:
        Point(sv_frame_t frame, QString label);
        Point(sv_frame_t frame, float value, QString label);
        Point(sv_frame_t frame, float value, sv_frame_t duration, QString label);
        Point(sv_frame_t frame, float value, sv_frame_t duration, float level, QString label);
        Point(const Point &point);
        Point &operator=(const Point &point);

        bool haveFrame() const;
        sv_frame_t getFrame() const;
        Point withFrame(sv_frame_t frame) const;

        bool haveValue() const;
        float getValue() const;
        Point withValue(float value) const;
        
        bool haveDuration() const;
        sv_frame_t getDuration() const;
        Point withDuration(sv_frame_t duration) const;
        
        bool haveLabel() const;
        QString getLabel() const;
        Point withLabel(QString label) const;

        bool haveLevel() const;
        float getLevel() const;
        Point withLevel(float level) const;

        bool haveReferenceFrame() const;
        bool referenceFrameDiffers() const; // from point frame

        sv_frame_t getReferenceFrame() const;
        void setReferenceFrame(sv_frame_t);

    private:
        bool m_haveFrame;
        sv_frame_t m_frame;
        bool m_haveValue;
        float m_value;
        bool m_haveDuration;
        sv_frame_t m_duration;
        bool m_haveLabel;
        QString m_label;
        bool m_haveLevel;
        float m_level;
        bool m_haveReferenceFrame;
        sv_frame_t m_referenceFrame;
    };

    Clipboard();
    ~Clipboard();

    typedef std::vector<Point> PointList;

    void clear();
    bool empty() const;
    const PointList &getPoints() const;
    void setPoints(const PointList &points);
    void addPoint(const Point &point);

    bool haveReferenceFrames() const;
    bool referenceFramesDiffer() const;

protected:
    PointList m_points;
};

#endif