comparison data/fileio/CSVFileReader.cpp @ 1009:e369dd281cf2

Provide reader from QIODevice

 #include <map>
 
 CSVFileReader::CSVFileReader(QString path, CSVFormat format,
                              int mainModelSampleRate) :
     m_format(format),
-    m_file(0),
+    m_device(0),
+    m_ownDevice(true),
     m_warnings(0),
     m_mainModelSampleRate(mainModelSampleRate)
 {
-    m_file = new QFile(path);
+    QFile *file = new QFile(path);
     bool good = false;
     
-    if (!m_file->exists()) {
+    if (!file->exists()) {
 	m_error = QFile::tr("File \"%1\" does not exist").arg(path);
-    } else if (!m_file->open(QIODevice::ReadOnly | QIODevice::Text)) {
+    } else if (!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;
-    }
+    if (good) {
+        m_device = file;
+    } else {
+	delete file;
+    }
+}
+
+CSVFileReader::CSVFileReader(QIODevice *device, CSVFormat format,
+                             int mainModelSampleRate) :
+    m_format(format),
+    m_device(device),
+    m_ownDevice(false),
+    m_warnings(0),
+    m_mainModelSampleRate(mainModelSampleRate)
+{
 }
 
 CSVFileReader::~CSVFileReader()
 {
-    SVDEBUG << "CSVFileReader::~CSVFileReader: file is " << m_file << endl;
-
-    if (m_file) {
-        SVDEBUG << "CSVFileReader::CSVFileReader: Closing file" << endl;
-        m_file->close();
-    }
-    delete m_file;
+    SVDEBUG << "CSVFileReader::~CSVFileReader: device is " << m_device << endl;
+
+    if (m_device && m_ownDevice) {
+        SVDEBUG << "CSVFileReader::CSVFileReader: Closing device" << endl;
+        m_device->close();
+        delete m_device;
+    }
 }
 
 bool
 CSVFileReader::isOK() const
 {
-    return (m_file != 0);
+    return (m_device != 0);
 }
 
 QString
 CSVFileReader::getError() const
 {

 }
 
 Model *
 CSVFileReader::load() const
 {
-    if (!m_file) return 0;
+    if (!m_device) return 0;
 
     CSVFormat::ModelType modelType = m_format.getModelType();
     CSVFormat::TimingType timingType = m_format.getTimingType();
     CSVFormat::TimeUnits timeUnits = m_format.getTimeUnits();
     int sampleRate = m_format.getSampleRate();

     RegionModel *model2a = 0;
     NoteModel *model2b = 0;
     EditableDenseThreeDimensionalModel *model3 = 0;
     Model *model = 0;
 
-    QTextStream in(m_file);
-    in.seek(0);
+    QTextStream in(m_device);
 
     unsigned int warnings = 0, warnLimit = 10;
     unsigned int lineno = 0;
 
     float min = 0.0, max = 0.0;

         QStringList lines = chunk.split('\r', QString::SkipEmptyParts);
         
         for (int li = 0; li < lines.size(); ++li) {
 
             QString line = lines[li];
-
+            
             if (line.startsWith("#")) continue;
 
             QStringList list = StringBits::split(line, separator, allowQuoting);
             if (!model) {