Chris@297: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ Chris@297: Chris@297: /* Chris@297: Sonic Visualiser Chris@297: An audio file viewer and annotation editor. Chris@297: Centre for Digital Music, Queen Mary, University of London. Chris@297: This file copyright 2007 QMUL. Chris@297: Chris@297: This program is free software; you can redistribute it and/or Chris@297: modify it under the terms of the GNU General Public License as Chris@297: published by the Free Software Foundation; either version 2 of the Chris@297: License, or (at your option) any later version. See the file Chris@297: COPYING included with this distribution for more information. Chris@297: */ Chris@297: Chris@297: #include "PlaylistFileReader.h" Chris@297: Chris@297: #include Chris@297: #include Chris@297: #include Chris@440: #include Chris@440: #include Chris@440: Chris@440: #include Chris@297: Chris@401: PlaylistFileReader::PlaylistFileReader(QString path) : Chris@401: m_source(path), Chris@401: m_file(0) Chris@297: { Chris@401: if (!m_source.isAvailable()) { Chris@401: m_error = QFile::tr("File or URL \"%1\" could not be retrieved") Chris@401: .arg(path); Chris@401: return; Chris@401: } Chris@401: init(); Chris@401: } Chris@401: Chris@401: PlaylistFileReader::PlaylistFileReader(FileSource source) : Chris@401: m_source(source), Chris@401: m_file(0) Chris@401: { Chris@401: if (!m_source.isAvailable()) { Chris@401: m_error = QFile::tr("File or URL \"%1\" could not be retrieved") Chris@401: .arg(source.getLocation()); Chris@401: return; Chris@401: } Chris@401: init(); Chris@401: } Chris@401: Chris@401: PlaylistFileReader::~PlaylistFileReader() Chris@401: { Chris@401: if (m_file) m_file->close(); Chris@401: delete m_file; Chris@401: } Chris@401: Chris@401: void Chris@401: PlaylistFileReader::init() Chris@401: { Chris@401: if (!m_source.isAvailable()) return; Chris@401: Chris@401: m_source.waitForData(); Chris@401: Chris@440: QString filename = m_source.getLocalFilename(); Chris@440: Chris@440: m_file = new QFile(filename); Chris@297: bool good = false; Chris@297: Chris@297: if (!m_file->exists()) { Chris@401: m_error = QFile::tr("File \"%1\" does not exist") Chris@401: .arg(m_source.getLocation()); Chris@297: } else if (!m_file->open(QIODevice::ReadOnly | QIODevice::Text)) { Chris@401: m_error = QFile::tr("Failed to open file \"%1\"") Chris@401: .arg(m_source.getLocation()); Chris@297: } else { Chris@297: good = true; Chris@297: } Chris@297: Chris@440: if (good) { Chris@440: if (!m_source.isRemote()) { Chris@440: m_basedir = QFileInfo(filename).dir().canonicalPath(); Chris@440: } Chris@440: } Chris@440: Chris@297: if (!good) { Chris@297: delete m_file; Chris@297: m_file = 0; Chris@297: } Chris@297: } Chris@297: Chris@297: bool Chris@297: PlaylistFileReader::isOK() const Chris@297: { Chris@297: return (m_file != 0); Chris@297: } Chris@297: Chris@297: QString Chris@297: PlaylistFileReader::getError() const Chris@297: { Chris@297: return m_error; Chris@297: } Chris@297: Chris@297: PlaylistFileReader::Playlist Chris@297: PlaylistFileReader::load() const Chris@297: { Chris@297: if (!m_file) return Playlist(); Chris@297: Chris@297: QTextStream in(m_file); Chris@297: in.seek(0); Chris@297: Chris@297: Playlist playlist; Chris@297: Chris@297: while (!in.atEnd()) { Chris@297: Chris@297: // cope with old-style Mac line endings (c.f. CSVFileReader) Chris@297: // as well as DOS/Unix style Chris@297: Chris@297: QString chunk = in.readLine(); Chris@297: QStringList lines = chunk.split('\r', QString::SkipEmptyParts); Chris@297: Chris@440: for (int li = 0; li < lines.size(); ++li) { Chris@297: Chris@297: QString line = lines[li]; Chris@297: Chris@297: if (line.startsWith("#")) continue; Chris@297: Chris@440: // line is expected to be a URL or a file path. If it Chris@440: // appears to be a local relative file path, then we Chris@440: // should check whether it can be resolved relative to the Chris@440: // location of the playlist file and, if so, do so. Chris@440: Chris@440: if (!FileSource::isRemote(line)) { Chris@440: if (QFileInfo(line).isRelative() && m_basedir != "") { Chris@440: QString testpath = QDir(m_basedir).filePath(line); Chris@440: if (QFileInfo(testpath).exists() && Chris@440: QFileInfo(testpath).isFile()) { Chris@440: std::cerr << "Path \"" << line.toStdString() Chris@440: << "\" is relative, resolving to \"" Chris@686: << testpath << "\"" Chris@440: << std::endl; Chris@440: line = testpath; Chris@440: } Chris@440: } Chris@440: } Chris@440: Chris@297: playlist.push_back(line); Chris@297: } Chris@297: } Chris@297: Chris@297: return playlist; Chris@297: } Chris@297: Chris@297: void Chris@297: PlaylistFileReader::getSupportedExtensions(std::set &extensions) Chris@297: { Chris@297: extensions.insert("m3u"); Chris@297: }