/// <summary>
/// 指定したファイルパスのファイルのテキストを解析します。
/// <para>
/// 解析に失敗したときは <see cref="SelectedPath"/> を "" に変更します。
/// </para>
/// </summary>
/// <param name="path">ファイルパス。</param>
/// <param name="type">シグナルの取得方法。</param>
public void Parse(string path, SignalSelectionType type)
{
_Points.Clear();
try
{
using (var reader = new StreamReader(path, Encoding.UTF8))
{
var converter = new SignalConverterV1();
var dataSelector = GetSignalSelection(type);
var line = "";
int sec = 0;
while ((line = reader.ReadLine()) != null)
{
if (string.IsNullOrEmpty(line))
{
continue;
}
var data = line.Split(',');
sec = int.Parse(data[0]);
var signals = dataSelector.Select(data.Skip(1), 10);
for (var i = 0; i < signals.Count(); i++)
{
var point = new DataPoint(sec + 0.1 * i, signals[i], converter);
_Points.Add(point);
}
}
}
// 前後のデータ ポイントを設定
var points = _Points;
DataPoint prevP = null;
DataPoint nowP = null;
DataPoint nextP = null;
for (var i = 0; i < points.Count(); i++)
{
prevP = nowP;
nowP = points.ElementAtOrDefault(i);
nextP = points.ElementAtOrDefault(i + 1);
nowP.Previous = prevP;
nowP.Next = nextP;
}
SelectedPath = path;
}
catch
{
SelectedPath = "";
}
DataPointUpdated?.Invoke(this, GenericEventArgs.Create(Points));
PropertyChanged.Raise(this, nameof(DataCount));
}
private ISignalSelection GetSignalSelection(SignalSelectionType type)
{
ISignalSelection selection = null;
switch (type)
{
case SignalSelectionType.Simple:
selection = new SimpleSignalSelection();
break;
case SignalSelectionType.ChangingPoint:
selection = new ChangingSignalSelection();
break;
default:
selection = new SimpleSignalSelection();
break;
}
return(selection);
}