private void Button_Click(object sender, RoutedEventArgs e)
{
string version = tbVersion.Text;
string patient = tbPatientCode.Text.Replace(' ','_') + " " + tbPatientSex.Text.Replace(' ','_') + " " +
tbPatientBirthday.SelectedDate.Value.ToString("dd-MMM-yyyy").ToUpper() + " " + tbPatientName.Text.Replace(' ','_');
string recording = "Startdate " + tbStartDate.SelectedDate.Value.ToString("dd-MMM-yyyy").ToUpper() + " "
+ tbPSGNumber.Text.Replace(' ', '_') + " " + tbTechnicianCode.Text.Replace(' ', '_')
+ " " + tbEquipCode.Text.Replace(' ', '_');
string startDate = "";
if (tbStartDate.SelectedDate.Value.Year <= 2084)
startDate = tbStartDate.SelectedDate.Value.ToString("dd.MM.yy").ToUpper();
else
startDate = "yy";
string startTime = tbStartHour.Text + "." + tbStartHour.Text + "." + tbStartSecond.Text;
string reserved = cbReserved.Text;
string numRecords = tbNumRecords.Text;
string durationRecord = tbDurationRecord.Text;
string ns = tbNs.Text;
EDFHeader.EDFHeader newHeader = new EDFHeader.EDFHeader(version, patient,recording,startDate,startTime,reserved,numRecords,durationRecord,ns);
ObjectHolder.EDFHeaderHolder = newHeader; //store it here for access from other windows
AdvancedDetailsWindow window = new AdvancedDetailsWindow();
App.Current.MainWindow = window;
this.Close();
window.Show();
}
/// <summary>
/// NOTE:: RETURNS NEW MODIFIED HEADER OBJECT. This function considers the filetype required to parse, then assigns the work to another function. It requires the header object to modify and the index of the signal to be written to.
/// </summary>
/// <param name="fileType"></param>
/// <param name="path"></param>
/// <param name="signalIndex"></param>
public EDFHeader.EDFHeader addFile(FileTypes fileType, string path, EDFHeader.EDFHeader iHeader, int signalIndexStart, int signalIndexEnd)
{
Console.WriteLine("Adding file {0}", path);
switch (fileType)
{
case FileTypes.zeoEEGCNT:
return addZeoEEGCNT(path, iHeader, signalIndexStart, signalIndexEnd);
default:
return iHeader;
throw new ArgumentException("Adding file failed. Specfied filetype argument incorrect");
}
}
public AdvancedDetailsWindow()
{
InitializeComponent();
header = ObjectHolder.EDFHeaderHolder;
numSignals = Convert.ToInt32(header.ns) - 1; //-1 to keep annotations separate from real signals
saved = new bool[numSignals];
lblSaved.Visibility = System.Windows.Visibility.Hidden;
//clear/create the relevant lists
labels = new List<string>();
transducerTypes = new List<string>();
physicalDimensions = new List<string>();
physicalMinimums = new List<string>();
physicalMaximums = new List<string>();
digitalMinimums = new List<string>();
digitalMaximums = new List<string>();
prefilterings = new List<string>();
numSamplesPerRecords = new List<string>();
//initialise list with blank strings to we can assign to them by index later, +1 to allow for annotations to slip in
for (int i = 0; i < numSignals + 1; i++)
{
labels.Add("");
transducerTypes.Add("");
physicalDimensions.Add("");
physicalMinimums.Add("");
physicalMaximums.Add("");
digitalMinimums.Add("");
digitalMaximums.Add("");
prefilterings.Add("");
numSamplesPerRecords.Add("");
}
for (int i = 0; i < numSignals; i++)
{
cbSignals.Items.Add("Signal " + i);
}
cbSignals.SelectedIndex = 0;
}
/// <summary>
/// Main function to write all signals data to EDF
/// </summary>
public void generateEDFData(EDFHeader.EDFHeader iHeader, string path)
{
EDFHeader.EDFHeader header = iHeader;
List<EDFSignal> signals = header.edfSignals;
//check if annotations are added
Byte[][] annotationSignals;
if (signals[signals.Count - 1].samples == null)
{
//TODO Add annotations functionality above the default requirements
int numAnnotationBytes = ConvertEDFHeaderField.toInt32((signals[signals.Count - 1].numSamples)) * 2; // times 2 as we need number of bytes, not number of 2-byte ints.
DefaultAnnotationGenerator defGen = new DefaultAnnotationGenerator(ConvertEDFHeaderField.toInt32(header.numRecords), ConvertEDFHeaderField.toInt32(header.durationRecord), numAnnotationBytes);
annotationSignals = defGen.getAnnotationSignals();
}
else
{
annotationSignals = null;
}
EDFDataBlock dataBlock = new EDFDataBlock();
dataBlock.numRecords = ConvertEDFHeaderField.toInt32(header.numRecords);
dataBlock.records = new EDFDataRecord[dataBlock.numRecords]; //declare and define the records field
for (int i = 0; i < dataBlock.numRecords; i++) //for all the records, proceed
{
//create the required data record, initialise fields
EDFDataRecord record = new EDFDataRecord();
record.numSignals = ConvertEDFHeaderField.toInt32(header.ns);
EDFDataRecordSignal[] newSignals = new EDFDataRecordSignal[record.numSignals]; //will contain all the signals for this record
for (int j = 0; j < (signals.Count - 1); j++) //for every signal except annotations, which will be handled separately
{
//make a new signal for the record, initialise it, make a new sample array, and copy the required number of samples over to there
EDFDataRecordSignal newSignal = new EDFDataRecordSignal();
newSignal.numSamples = ConvertEDFHeaderField.toInt32(signals[j].numSamples);
newSignal.samples = new EDFDataRecordSignalSample[newSignal.numSamples];
int startCopy = i * newSignal.numSamples; //index to start copying from, then copy newSignal.numsample samples.
for (int k = 0; k < newSignal.numSamples; k++) //copy 256 items
{
newSignal.samples[k] = signals[j].samples[startCopy + k];
}
// Array.Copy(signals[j].samples, i * newSignal.numSamples, newSamples, 0, newSignal.numSamples); //be careful of overflows here
newSignals[j] = newSignal; //copy the new signal into the signals array for this record
}
//handle annotations -> put into newSignals[signals.count - 1]
Byte[] annotationSignal = annotationSignals[i];
//declare a signal sample array that is half the length of the byte array
EDFDataRecordSignalSample[] newAnnotationSamples = new EDFDataRecordSignalSample[annotationSignal.Length / 2];
EDFDataRecordSignal newAnnotationSignal = new EDFDataRecordSignal();
for (int k = 0; k < annotationSignal.Length; k += 2) //advanced 2 bytes by 2 bytes while converting them all into int16s
{
//convert to int16
Int16 convertedInt = BitConverter.ToInt16(annotationSignal, k);
//add this to a new signal sample
EDFDataRecordSignalSample newAnnotationSample = new EDFDataRecordSignalSample(convertedInt);
//assign the signal samples to an index each, but since the length is halved, the highest index is halved too
newAnnotationSamples[k / 2] = newAnnotationSample;
}
newAnnotationSignal.numSamples = ConvertEDFHeaderField.toInt32(signals[signals.Count - 1].numSamples); //get size of annotation field and set
newAnnotationSignal.samples = newAnnotationSamples; //set the samples of the signal to the previously converted and assigned 2byte ints
//finally, put this as the last signal in the signal array
newSignals[signals.Count - 1] = newAnnotationSignal;
//finally, add all signals to record and add that record to the dataBlock
record.signals = newSignals;
dataBlock.records[i] = record;
}
//get the entire EDF Datablock
Int16[] outData = dataBlock.getEDFData();
//write to output EDF
using (BinaryWriter b = new BinaryWriter(File.Open(path, FileMode.Append))) //TODO allow file to be specified!
{
for (int i = 0; i < outData.Length; i++)
{
//Console.Write(outData[i] + " ");
b.Write(outData[i]);
}
b.Close();
}
Console.WriteLine("Done writing to file!");
}
/// <summary>
/// Specific function to add Zeo EEG CNT files
/// </summary>
/// <param name="path"></param>
/// <param name="signalIndex"></param>
private EDFHeader.EDFHeader addZeoEEGCNT(string path, EDFHeader.EDFHeader iHeader, int signalIndexStart, int signalIndexEnd)
{
EDFHeader.EDFHeader header = iHeader;
CntFile file = new CntFile();
//file.ReadCnt(System.IO.Path.GetFullPath(@"test3.cnt"));
file.ReadCnt(path);
float[,] eeg_data = file.eeg_data;
//add code to deal with multiple signals here
int sampleSize = eeg_data.GetLength(1);
for (int j = signalIndexStart, k = 0; j <= signalIndexEnd; j++, k++)
{
EDFDataRecordSignalSample[] samples = new EDFDataRecordSignalSample[sampleSize];
for (int i = 0; i < eeg_data.GetLength(1); i++)
{
//TODO get more than 1 channel of CNT data
float rawData = eeg_data[k, i]; //k is the channel number
Int16 digitalData = ZeoFloatToDigital.zeoFloatToDigital(rawData);
samples[i] = new EDFDataRecordSignalSample(digitalData);
//Console.WriteLine("Samples[{0}] = {1}", i, samples[i].sample);
}
header.edfSignals[j].samples = samples;
}
return header;
}
