annotate widgets/InteractiveFileFinder.h @ 1551:e79731086b0f

Fixes to NoteLayer, particularly to calculation of vertical scale when model unit is not Hz. To avoid inconsistency we now behave as if the unit is always Hz from the point of view of the external API and display, converting at the point where we obtain values from the events themselves. Also various fixes to editing.

/* -*- 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 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_INTERACTIVE_FILE_FINDER_H
#define SV_INTERACTIVE_FILE_FINDER_H

#include "data/fileio/FileFinder.h"

#include <QApplication>
#include <QString>
#include <QObject>

class InteractiveFileFinder : public QObject,
                              public FileFinder
{
    Q_OBJECT

public:
    virtual ~InteractiveFileFinder();

    /// Specify the extension for this application's session files
    /// (without the dot)
    void setApplicationSessionExtension(QString extension);

    QString getApplicationSessionExtension() const {
        return m_sessionExtension;
    }

    QString getOpenFileName(FileType type,
                            QString fallbackLocation = "") override;
    
    QStringList getOpenFileNames(FileType type,
                                 QString fallbackLocation = "") override;
    
    QString getSaveFileName(FileType type,
                            QString fallbackLocation = "") override;
    
    void registerLastOpenedFilePath(FileType type,
                                    QString path) override;

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

    static void setParentWidget(QWidget *);

    static InteractiveFileFinder *getInstance() { return &m_instance; }

protected:
    InteractiveFileFinder();
    static InteractiveFileFinder m_instance;

    QString findRelative(QString location, QString relativeTo);
    QString locateInteractive(FileType type, QString thing);

    QStringList getOpenFileNames(FileType type,
                                 QString fallbackLocation,
                                 bool multiple);

    QString m_sessionExtension;
    QString m_lastLocatedLocation;

    QWidget *m_parent;
};

#endif