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#define ALLOW_LOG_CLEARING // when defined will allow the log to be cleared |
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using System; |
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using System.Collections.Generic; |
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using System.ComponentModel; |
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using System.Drawing; |
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using System.Data; |
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using System.Linq; |
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using System.Text; |
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using System.Windows.Forms; |
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using System.IO; |
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using System.Reflection; |
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|
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namespace RomCheater.Logging |
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{ |
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public partial class LogWriter : UserControl |
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{ |
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private static string LOG_PATH { get { return string.Format(@"{0}\{1}", typeof(LogWriter).Assembly.Location.Replace("RomCheater.Logging.dll", ""), LoggingConstants.AppLogFile); } } |
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|
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private delegate string OnGetLogText(); |
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private delegate void OnSetLogText(string value); |
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private delegate void GenericVoidDelegate(); |
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|
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private OnGetLogText HandleGetLogText = null; |
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private OnSetLogText HandleSetLogText = null; |
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private GenericVoidDelegate delegate_EndLogUpdate = null; |
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|
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public LogWriter() : this(false) { } |
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public LogWriter(bool redirectConsole) |
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{ |
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InitializeComponent(); |
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this.Log = new LogStream(this); |
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HandleGetLogText += new OnGetLogText(GetLogText); |
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HandleSetLogText += new OnSetLogText(SetLogText); |
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|
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delegate_EndLogUpdate += new GenericVoidDelegate(EndLogUpdate); |
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|
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this.RedirectConsoleOutput = redirectConsole; |
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toolTip1.SetToolTip(btnClearLog, "Clears the Log"); |
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toolTip1.SetToolTip(btnCopyLogToClipboard, "Copies the Log to the Clipboard"); |
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|
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ms = new MemoryStream(); |
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sw = new StreamWriter(ms); |
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sw.AutoFlush = true; |
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sr = new StreamReader(ms); |
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} |
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private LogStream _Log; |
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public LogStream Log { get { return _Log; } private set { _Log = value; } } |
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|
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|
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private MemoryStream ms; |
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private StreamWriter sw; |
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private StreamReader sr; |
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private bool _AutoScroll; |
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new public bool AutoScroll { get { return _AutoScroll; } set { _AutoScroll = value; autoscroll_timer.Enabled = value; } } |
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|
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private bool _RedirectConsoleOutput; |
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public bool RedirectConsoleOutput |
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{ |
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get { return _RedirectConsoleOutput; } |
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set |
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{ |
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_RedirectConsoleOutput = value; |
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if (value) { Console.SetOut(this.Log); } |
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else |
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{ |
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Stream stream = Console.OpenStandardOutput(0x100); |
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TextWriter writer = null; |
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if (stream == Stream.Null) { writer = TextWriter.Synchronized(StreamWriter.Null); } |
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Encoding encoding = this.Log.Encoding; |
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StreamWriter writer2 = new StreamWriter(stream, encoding, 0x100); |
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//writer2.HaveWrittenPreamble = true; |
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writer2.AutoFlush = true; |
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writer = TextWriter.Synchronized(writer2); |
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Console.SetOut(writer); |
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} |
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} |
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} |
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|
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private void btnClearLog_Click(object sender, EventArgs e) { this.Clear(true); } |
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private void btnCopyLogToClipboard_Click(object sender, EventArgs e) { Clipboard.SetText(GetLogText()); } |
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|
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|
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private string PreserveLineEndings(string text) { return text.Replace("\n", System.Environment.NewLine); } |
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|
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|
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private bool BeginUpdate; |
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public void BeginLogUpdate() |
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{ |
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BeginUpdate = true; |
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} |
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public void EndLogUpdate() |
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{ |
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if (txtLog.InvokeRequired) |
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{ |
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this.Invoke(delegate_EndLogUpdate); |
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} |
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else |
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{ |
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StringReader _sr = new StringReader(GetLogText()); |
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List<string> lines = new List<string>(); |
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string line = ""; |
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while ((line = _sr.ReadLine()) != null) |
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{ |
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lines.Add(line); |
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} |
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txtLog.Lines = lines.ToArray(); |
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BeginUpdate = false; |
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} |
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} |
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private string StreamToString() |
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{ |
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try |
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{ |
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string value = ""; |
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sr = new StreamReader(ms); |
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sr.BaseStream.Seek(0, SeekOrigin.Begin); |
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value = sr.ReadToEnd(); |
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return value; |
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} |
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catch (Exception ex) |
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{ |
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return ""; |
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} |
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} |
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public string GetLogText() |
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{ |
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//if (txtLog.InvokeRequired) |
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//{ |
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// return (string)this.Invoke(HandleGetLogText, new object[] { }); |
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//} |
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//else |
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//{ |
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return PreserveLineEndings(StreamToString()); |
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//} |
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|
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} |
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public void SetLogText(string value) |
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{ |
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FileStream fs = new FileStream(LOG_PATH, FileMode.Append, FileAccess.Write, FileShare.ReadWrite); |
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StreamWriter writer = new StreamWriter(fs); |
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writer.AutoFlush = true; |
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if (value == Log.NewLine) { writer.Write(System.Environment.NewLine); } |
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else { writer.Write(value); } |
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writer.Close(); |
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//string text = value.Replace(System.Environment.NewLine,""); |
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string text = value.Replace(System.Environment.NewLine, Log.NewLine); |
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//if (text.StartsWith(Log.NewLine)) |
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//{ |
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// text = text.Remove(0, Log.NewLine.Length); |
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//} |
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sw.Write(text); |
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Application.DoEvents(); |
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} |
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|
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new public string Text |
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{ |
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get |
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{ |
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throw new InvalidOperationException("Please use GetLogText()"); |
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} |
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private set |
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{ |
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throw new InvalidOperationException("Please use SetLogText(string value)"); |
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} |
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} |
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public void CreateNewLog(bool delete) |
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{ |
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if (delete) |
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{ |
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FileInfo fi = new FileInfo(LOG_PATH); |
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if (fi.Exists) |
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fi.Delete(); |
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} |
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Log.WriteLine("{0} ({2} v{3} {4}) created on {1}", LoggingConstants.AppLogFile, DateTime.Now.ToString(), LoggingConstants.AppName, LoggingConstants.AppVersion, LoggingConstants.AppBuild); |
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} |
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public void Clear() |
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{ |
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Clear(false); |
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} |
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private void Clear(bool force) |
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{ |
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bool allow_log_clearing = false; |
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#if ALLOW_LOG_CLEARING |
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allow_log_clearing = true; |
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#endif |
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if (force || allow_log_clearing) |
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{ |
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|
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txtLog.Clear(); |
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ms = new MemoryStream(); |
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sw = new StreamWriter(ms); |
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sw.AutoFlush = true; |
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sr = new StreamReader(ms); |
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} |
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} |
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#region sub-classes |
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public class LogStream : TextWriter |
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{ |
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private StringBuilder strMessage = new StringBuilder(); |
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public LogStream() : this(null) { } |
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public LogStream(LogWriter text) : base() { _text_writer = text; this.NewLine = "\n"; } |
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private LogWriter _text_writer; |
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private void _write(string message) |
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{ |
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if (_text_writer == null) return; |
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|
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if (message.EndsWith("\n")) |
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{ |
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//_text_writer.SetLogText(string.Format("{0}", strMessage.ToString())); |
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while (_text_writer.logupdater.IsBusy) |
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{ |
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Application.DoEvents(); |
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} |
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_text_writer.logupdater.RunWorkerAsync((string.Format("{0}", strMessage.ToString()))); |
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strMessage = new StringBuilder(); |
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} |
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strMessage.Append(message); |
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} |
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#region Overriden Methods |
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public override Encoding Encoding { get { return Encoding.UTF8; } } |
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public override void Write(char value) { base.Write(value); _write(value.ToString()); if (!_text_writer.BeginUpdate) _text_writer.EndLogUpdate(); } |
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#endregion |
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} |
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#endregion |
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|
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private void autoscroll_timer_Tick(object sender, EventArgs e) |
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{ |
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try |
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{ |
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if (this.DesignMode) { return; } |
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////txtLog.ScrollToEnd(); |
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//txtLog.SelectionStart = txtLog.Text.Length - 100; |
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//txtLog.ScrollToCaret(); |
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//txtLog.Refresh(); |
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|
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//txtLog.SelectionStart = 0; |
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//txtLog.ScrollToCaret(); |
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//txtLog.Refresh(); |
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|
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//int last_line_position = -1; |
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//int position = -1; |
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int len = txtLog.Text.Length; |
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//StringReader sr = new StringReader(this.StreamToString()); |
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//string line = ""; |
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//while ((line = sr.ReadLine()) != null) |
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//{ |
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// position += (line.Length * 2); |
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// last_line_position = (line.Length * 2); |
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// //if (line.EndsWith("/n")) |
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// //{ |
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// // position++; |
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// //} |
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// //logger.VerboseDebug.WriteLine("current line: {0}", line); |
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//} |
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txtLog.SelectionStart = len; |
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txtLog.ScrollToCaret(); |
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txtLog.Refresh(); |
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//autoscroll_timer.Enabled = false; |
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} |
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catch { } |
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|
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} |
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|
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private void logupdater_DoWork(object sender, DoWorkEventArgs e) |
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{ |
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string message = e.Argument.ToString(); |
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SetLogText(string.Format("{0}", message)); |
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} |
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|
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private void logupdater_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) |
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{ |
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|
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} |
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} |
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} |
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