ViewManagerBase.h

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/* -*- 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 and QMUL.
    
    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 _VIEW_MANAGER_BASE_H_
#define _VIEW_MANAGER_BASE_H_

#include <QObject>

#include "Selection.h"

class AudioPlaySource;

class ViewManagerBase : public QObject
{
    Q_OBJECT

public:
    virtual ~ViewManagerBase();

    virtual void setAudioPlaySource(AudioPlaySource *source) = 0;

    virtual int alignPlaybackFrameToReference(int) const = 0;
    virtual int alignReferenceToPlaybackFrame(int) const = 0;

    virtual const MultiSelection &getSelection() const = 0;
    virtual const MultiSelection::SelectionList &getSelections() const = 0;
    virtual int constrainFrameToSelection(int frame) const = 0;

    virtual Selection getContainingSelection
    (int frame, bool defaultToFollowing) const = 0;

    virtual bool getPlayLoopMode() const = 0;
    virtual bool getPlaySelectionMode() const = 0;
    virtual bool getPlaySoloMode() const = 0;
    virtual bool getAlignMode() const = 0;

signals:
    void selectionChanged();

    void playLoopModeChanged();
    void playLoopModeChanged(bool);

    void playSelectionModeChanged();
    void playSelectionModeChanged(bool);

    void playSoloModeChanged();
    void playSoloModeChanged(bool);

    void alignModeChanged();
    void alignModeChanged(bool);
};

#endif