view data/fileio/FileFinder.h @ 875:3e6ed8a8577b tonioni

Use a sparse time-value model only for outputs with fixed bin count of 1, not for those with unknown bin count.
(Precursor to using more than one model for outputs with unknown bin count)

/* -*- 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 2009 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 _FILE_FINDER_H_
#define _FILE_FINDER_H_

#include <QString>

class FileFinder 
{
public:
    enum FileType {
        SessionFile,
        AudioFile,
        LayerFile,
        LayerFileNoMidi,
        SessionOrAudioFile,
        ImageFile,
        AnyFile,
        CSVFile,
        LayerFileNonSV,
        LayerFileNoMidiNonSV,
    };

    virtual QString getOpenFileName(FileType type, QString fallbackLocation = "") = 0;
    virtual QString getSaveFileName(FileType type, QString fallbackLocation = "") = 0;
    virtual void registerLastOpenedFilePath(FileType type, QString path) = 0;

    virtual QString find(FileType type, QString location, QString lastKnownLocation = "") = 0;

    static FileFinder *getInstance() {
        FFContainer *container = FFContainer::getInstance();
        return container->getFileFinder();
    }

protected:
    class FFContainer {
    public:
        static FFContainer *getInstance() {
            static FFContainer instance;
            return &instance;
        }
        void setFileFinder(FileFinder *ff) { m_ff = ff; }
        FileFinder *getFileFinder() const { return m_ff; }
    private:
        FileFinder *m_ff;
    };

    static void registerFileFinder(FileFinder *ff) {
        FFContainer *container = FFContainer::getInstance();
        container->setFileFinder(ff);
    }
};

#endif