comparison widgets/FileFinder.h @ 378:22b72f0f6a4e

* More work to abstract out interactive components used in the data library,
  so that it does not need to depend on QtGui.

+/* -*- 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 _FILE_FINDER_H_
+#define _FILE_FINDER_H_
+
+#include <QString>
+#include <QObject>
+
+class FileFinder : public QObject
+{
+    Q_OBJECT
+
+public:
+    virtual ~FileFinder();
+
+    enum FileType {
+        SessionFile,
+        AudioFile,
+        LayerFile,
+        LayerFileNoMidi,
+        SessionOrAudioFile,
+        ImageFile,
+        AnyFile
+    };
+
+    QString getOpenFileName(FileType type, QString fallbackLocation = "");
+    QString getSaveFileName(FileType type, QString fallbackLocation = "");
+    void registerLastOpenedFilePath(FileType type, QString path);
+
+    QString find(FileType type, QString location, QString lastKnownLocation = "");
+
+    static FileFinder *getInstance();
+
+protected:
+    FileFinder();
+    static FileFinder *m_instance;
+
+    QString findRelative(QString location, QString relativeTo);
+    QString locateInteractive(FileType type, QString thing);
+
+    QString m_lastLocatedLocation;
+};
+
+#endif
+