/// <summary>
/// background 'open file' thread (callbacks inside)
/// </summary>
/// <param name="filename"></param>
void OpenFileBackground(string filename)
{
ProgressWindow progressWindow = new ProgressWindow("In progress", $"Opening{filename}", _openBackground, statusStrip1);
Task r = Task.Run(delegate() { Application.Run(progressWindow); });
double fileSize = new FileInfo(filename).Length;
double current = 0;
double previousPercentForRefreshGraph = 0;
double prevPercentForCallback = 0;
double percent = 0;
if (_FieldCeparatorMode == fieldCeparatorMode.auto)
{
//predicting field separator
using (StreamReader reader = new StreamReader(filename))
{
string line = reader.ReadLine();
if (line.Contains("\t"))
{
_fieldSeparator = "\t";
}
else if (line.Contains(";"))
{
_fieldSeparator = ";";
}
else
{
_fieldSeparator = ",";
}
}
}
if (_DecimalSeparatorMode == decimalCeparatorMode.auto)
{
//predicting decimal separator
using (StreamReader reader = new StreamReader(filename))
{
if (_fieldSeparator == ",")
{
_decimalSeparator = ".";
}
else
{
//first line
reader.ReadLine();
string line = reader.ReadLine();
while (!line.Contains(".") && !line.Contains(","))
{
line = reader.ReadLine();
}
if (line.Contains("."))
{
_decimalSeparator = ".";
}
else if (line.Contains(","))
{
_decimalSeparator = ",";
}
}
}
}
using (StreamReader reader = new StreamReader(filename))
{
//Get Names
string line = reader.ReadLine();
string[] row = line.Split(new string[] { _fieldSeparator }, StringSplitOptions.RemoveEmptyEntries);
float[] floatRow;
current = line.Length;
int channelCount = row.Length;
floatRow = new float[channelCount];
listBox1.Invoke((MethodInvoker) delegate()
{
listBox1.SelectedIndexChanged -= listBox1_SelectedIndexChanged;
listBox1.Items.Clear();
for (int i = 0; i < row.Length; i++)
{
graph2.addChannel(row[i]);
listBox1.Items.Add(row[i]);
if (i < 5)
{
listBox1.SelectedIndices.Add(i);
}
}
listBox1.SelectedIndexChanged += listBox1_SelectedIndexChanged;
});
//get values async
while (!reader.EndOfStream)
{
line = reader.ReadLine();
if (Thread.CurrentThread.CurrentCulture.NumberFormat.CurrencyDecimalSeparator != _decimalSeparator)
{
line = line.Replace(_decimalSeparator, Thread.CurrentThread.CurrentCulture.NumberFormat.CurrencyDecimalSeparator);
}
row = line.Split(new string[] { _fieldSeparator }, StringSplitOptions.None);
if (row.Length == channelCount)
{
for (int i = 0; i < channelCount; i++)
{
if (!float.TryParse(row[i], out floatRow[i]))
{
floatRow[i] = float.NaN;
}
}
if (!float.IsNaN(floatRow[0]))
{
for (int i = 0; i < channelCount; i++)
{
graph2.insertInto(i, new PointF(floatRow[0], floatRow[i]));
}
}
}
current += line.Length;
percent = (int)(current / fileSize * 100);
if (percent != prevPercentForCallback)
{
prevPercentForCallback = percent;
if (progressWindow.IsHandleCreated)
{
progressWindow.BeginInvoke((MethodInvoker) delegate()
{
if (progressWindow.IsHandleCreated)
{
progressWindow.UpdateProgressBar(percent);
}
});
}
if (percent - previousPercentForRefreshGraph > 5)
{
graph2.BeginInvoke((MethodInvoker) delegate()
{
try
{
if (graph2.IsHandleCreated)
{
graph2.draw(false);
}
}
catch (Exception ex) { }
});
statisticBox.BeginInvoke((MethodInvoker) delegate()
{
statisticBox.Text = "";
List <string> stat = graph2.GetStatistic();
stat.Insert(0, $"File: {filename}");
statisticBox.Lines = stat.ToArray();
});
previousPercentForRefreshGraph = percent;
}
}
}
}
if (graph2.IsHandleCreated)
{
graph2.BeginInvoke((MethodInvoker) delegate()
{
try
{
if (graph2.IsHandleCreated)
{
graph2.draw(true);
}
}
catch (Exception ex) { }
});
}
statisticBox.BeginInvoke((MethodInvoker) delegate()
{
statisticBox.Text = "";
List <string> stat = graph2.GetStatistic();
stat.Insert(0, $"File: {filename}");
statisticBox.Lines = stat.ToArray();
});
if (progressWindow.IsHandleCreated)
{
progressWindow.BeginInvoke((MethodInvoker) delegate() {
if (progressWindow.IsHandleCreated)
{
progressWindow.UpdateProgressBar(100);
}
});
}
}
/// <summary>
/// background 'generate file' thread (callbacks inside)
/// </summary>
/// <param name="filename"></param>
/// <param name="channelCount"></param>
/// <param name="rowCount"></param>
/// <param name="NaNs"></param>
void GenerateFileBackground(string filename, int channelCount, int rowCount, int NaNs = -1)
{
//file generator
ProgressWindow progressWindow = new ProgressWindow("In Process", $"Generating CSV File '{filename}'", Thread.CurrentThread, statusStrip1);
Task r = Task.Run(delegate() { Application.Run(progressWindow); });
List <Generator> generators = new List <Generator>();
Random random = new Random();
List <List <double> > values = new List <List <double> >();
for (int i = 0; i < channelCount; i++)
{
int classType = random.Next(0, 3);
switch (classType)
{
case 0:
generators.Add(new Sin(random.Next(1, 100) / (10 * 1.0f)));
break;
case 1:
generators.Add(new Cos(random.Next(1, 100) / (10 * 1.0f)));
break;
case 2:
generators.Add(new SinCos(random.Next(1, 100) / (10 * 1.0f)));
break;
}
}
float step = 0.01F;
List <string> line = new List <string>();
for (int i = 0; i < channelCount + 1; i++)
{
line.Add(i.ToString());
}
NumberFormatInfo nfi = new NumberFormatInfo();
nfi.NumberDecimalSeparator = _decimalSeparator;
using (StreamWriter writer = new StreamWriter(filename))
{
writer.WriteLine(String.Join(_fieldSeparator, line));
for (float i = 0, j = 0; j < rowCount; i += step, j++)
{
line = new List <string>();
line.Add(i.ToString());
foreach (var generator in generators)
{
if (random.Next(0, 100) < NaNs)
{
line.Add("err");
}
else
{
line.Add(generator.getValue(i).ToString(nfi));
}
}
writer.WriteLine(String.Join(_fieldSeparator, line));
if (progressWindow.IsHandleCreated)
{
progressWindow.BeginInvoke((MethodInvoker) delegate()
{
if (progressWindow.IsHandleCreated)
{
progressWindow.UpdateProgressBar(Math.Round(j / (rowCount * 1.0f) * 100, 3));
}
});
}
}
}
if (progressWindow.IsHandleCreated)
{
progressWindow.BeginInvoke((MethodInvoker) delegate()
{
if (progressWindow.IsHandleCreated)
{
progressWindow.UpdateProgressBar(100);
}
});
}
}