/// <summary>
/// Initializes a new instance of the <see cref="FormProcessDisplay" /> class.
/// </summary>
/// <param name="windowTitle">The description / form title</param>
/// <param name="withLoggerDisplay">True if a debug logging windows should be shown</param>
/// <param name="cancellationToken">The cancellation token.</param>
public FormProcessDisplay(string windowTitle, bool withLoggerDisplay, CancellationToken cancellationToken)
{
CancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
m_ProcessDisplay = new ProcessDisplayTime(CancellationTokenSource.Token);
InitializeComponent();
m_Title = windowTitle;
base.Text = windowTitle;
Maximum = 0;
SuspendLayout();
m_TableLayoutPanel.SuspendLayout();
if (withLoggerDisplay)
{
Height += 100;
m_LoggerDisplay = new LoggerDisplay {
MinLevel = Logger.Level.Debug, Dock = DockStyle.Fill, Multiline = true, TabIndex = 8
};
m_TableLayoutPanel.Controls.Add(m_LoggerDisplay, 0, 3);
m_LoggerDisplay.Dock = DockStyle.Fill;
}
m_TableLayoutPanel.ResumeLayout(false);
m_TableLayoutPanel.PerformLayout();
ResumeLayout(false);
PerformLayout();
}
private void UpdateView()
{
m_DisplayedAt = ScrollBarVertical.Value;
if (string.IsNullOrEmpty(m_CsvFile.FileName))
{
return;
}
try
{
using (var procDisp = new ProcessDisplayTime(System.Threading.CancellationToken.None))
using (var istream = ImprovedStream.OpenRead(m_CsvFile))
using (var sr = new StreamReader(istream.Stream, m_CsvFile.GetEncoding(), m_CsvFile.ByteOrderMark))
{
// Some stream do not support seek...
if (istream.Stream.CanSeek)
{
istream.Stream.Seek(m_DisplayedAt, SeekOrigin.Begin);
if (m_DisplayedAt != 0)
{
// find the line start
var read = sr.Read();
while (read != 13 && read != 10 && !sr.EndOfStream)
{
read = sr.Read();
}
var next = sr.Peek();
if (read == 13 && next == 10 || read == 10 && next == 13)
{
sr.Read();
}
}
}
else
{
ScrollBarVertical.Enabled = false;
}
var buffer = new char[32000];
var len = sr.Read(buffer, 0, buffer.Length);
CSVTextBox.Text = new string(buffer, 0, len);
}
}
catch (Exception exc)
{
CSVTextBox.Text = exc.ExceptionMessages();
}
}