view base/NoteExportable.h @ 1752:6d09d68165a4 by-id

Further review of ById: make IDs only available when adding a model to the ById store, not by querying the item directly. This means any id encountered in the wild must have been added to the store at some point (even if later released), which simplifies reasoning about lifecycles

/* -*- 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 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 SV_NOTE_EXPORTABLE_H
#define SV_NOTE_EXPORTABLE_H

#include "NoteData.h"

class NoteExportable
{
public:
    /**
     * Get all notes in the exportable object.
     */
    virtual NoteList getNotes() const = 0;

    /**
     * Get notes that are active at the given frame, i.e. that start
     * before or at this frame and have not ended by it.
     */
    virtual NoteList getNotesActiveAt(sv_frame_t frame) const = 0;

    /**
     * Get notes that start within the range in frames defined by the
     * given start frame and duration.
     */
    virtual NoteList getNotesStartingWithin(sv_frame_t startFrame,
                                            sv_frame_t duration) const = 0;
};

#endif