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 SV_VIEW_MANAGER_BASE_H
#define SV_VIEW_MANAGER_BASE_H

#include <QObject>

#include "Selection.h"

class AudioPlaySource;
class AudioRecordTarget;

class ViewManagerBase : public QObject
{
    Q_OBJECT

public:
    virtual ~ViewManagerBase();

    virtual void setAudioPlaySource(AudioPlaySource *source) = 0;
    virtual void setAudioRecordTarget(AudioRecordTarget *target) = 0;

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

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

    virtual Selection getContainingSelection
    (sv_frame_t 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