private void OnSizeOfFileChanged(long lastSizeOfFile, long currentSizeOfFile)
{
if (SizeOfFileChanged != null)
{
var args = new SizeOfFileEventArgs(lastSizeOfFile, currentSizeOfFile);
_log.Debug("Raising event SizeOfFileChanged...");
try
{
SizeOfFileChanged(this, args);
}
catch (Exception e)
{
_log.Error(e.ToString());
}
_log.Debug(".. Event SizeOfFileChanged is raised");
}
}
private void SizeOfFileChangedHandler(object sender, SizeOfFileEventArgs e)
{
NewContentIsAvailable = true;
if (e.CurrentSizeOfFile == 0)
{
EmptyPage();
OnPageLoaded();
return;
}
if (e.CurrentSizeOfFile > e.LastSizeOfFile)
{
Log.Debug("size of file increased");
IList <string> tail = _stream.GetEndOfFile(e.LastSizeOfFile, RejectionList);
OnTailUpdated(tail);
}
else if (e.CurrentSizeOfFile < e.LastSizeOfFile)
{
Log.Debug("size of file decreased");
_stream.SetPosition(_currentPage.OffsetStart, SeekOrigin.Begin);
FillCurrentPage(_currentPage.OffsetStart);
OnPageLoaded();
}
}