annotate base/ProgressReporter.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 file copyright 2007-2008 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_PROGRESS_REPORTER_H
#define SV_PROGRESS_REPORTER_H

#include <QObject>
#include <QString>

class ProgressReporter : public QObject
{
    Q_OBJECT
    
public:
    ProgressReporter(QObject *parent = 0);
    virtual ~ProgressReporter();

    virtual bool isDefinite() const = 0;
    virtual void setDefinite(bool definite) = 0; // default should be definite

    virtual bool wasCancelled() const = 0;

signals:
    void cancelled();

public slots:
    virtual void setMessage(QString text) = 0;
    virtual void setProgress(int percentage) = 0;
};

#endif