Mercurial > hg > svcore
view data/fileio/PlaylistFileReader.cpp @ 353:1c6816220185
* more handy functions
author | Chris Cannam |
---|---|
date | Mon, 10 Dec 2007 17:37:13 +0000 |
parents | c022976d18e8 |
children | d030801113b6 |
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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 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. */ #include "PlaylistFileReader.h" #include <QFile> #include <QTextStream> #include <QStringList> PlaylistFileReader::PlaylistFileReader(QString path) { m_file = new QFile(path); bool good = false; if (!m_file->exists()) { m_error = QFile::tr("File \"%1\" does not exist").arg(path); } else if (!m_file->open(QIODevice::ReadOnly | QIODevice::Text)) { m_error = QFile::tr("Failed to open file \"%1\"").arg(path); } else { good = true; } if (!good) { delete m_file; m_file = 0; } } PlaylistFileReader::~PlaylistFileReader() { if (m_file) m_file->close(); delete m_file; } bool PlaylistFileReader::isOK() const { return (m_file != 0); } QString PlaylistFileReader::getError() const { return m_error; } PlaylistFileReader::Playlist PlaylistFileReader::load() const { if (!m_file) return Playlist(); QTextStream in(m_file); in.seek(0); Playlist playlist; while (!in.atEnd()) { // cope with old-style Mac line endings (c.f. CSVFileReader) // as well as DOS/Unix style QString chunk = in.readLine(); QStringList lines = chunk.split('\r', QString::SkipEmptyParts); for (size_t li = 0; li < lines.size(); ++li) { QString line = lines[li]; if (line.startsWith("#")) continue; playlist.push_back(line); } } return playlist; } void PlaylistFileReader::getSupportedExtensions(std::set<QString> &extensions) { extensions.insert("m3u"); }