trunk/RomCheater.Logging/LogWriter.cs

#define ALLOW_LOG_CLEARING // when defined will allow the log to be cleared
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Reflection;

namespace RomCheater.Logging
{
    public partial class LogWriter : UserControl
    {
        private static string LOG_PATH { get { return string.Format(@"{0}\{1}", typeof(LogWriter).Assembly.Location.Replace("RomCheater.Logging.dll", ""), LoggingConstants.AppLogFile); } }

        private delegate string OnGetLogText();
        private delegate void OnSetLogText(string value);
        private delegate void GenericVoidDelegate();

        private OnGetLogText HandleGetLogText = null;
        private OnSetLogText HandleSetLogText = null;
        private GenericVoidDelegate delegate_EndLogUpdate = null;

        public LogWriter() : this(false) { }
        public LogWriter(bool redirectConsole)
        {
            InitializeComponent();
            this.Log = new LogStream(this);
            HandleGetLogText += new OnGetLogText(GetLogText);
            HandleSetLogText += new OnSetLogText(SetLogText);

            delegate_EndLogUpdate += new GenericVoidDelegate(EndLogUpdate);

            this.RedirectConsoleOutput = redirectConsole;
            toolTip1.SetToolTip(btnClearLog, "Clears the Log");
            toolTip1.SetToolTip(btnCopyLogToClipboard, "Copies the Log to the Clipboard");

            ms = new MemoryStream();
            sw = new StreamWriter(ms);
            sw.AutoFlush = true;
            sr = new StreamReader(ms);
        }
        private LogStream _Log;
        public LogStream Log { get { return _Log; } private set { _Log = value; } }


        private MemoryStream ms;
        private StreamWriter sw;
        private StreamReader sr;
        private bool _AutoScroll;
        new public bool AutoScroll { get { return _AutoScroll; } set { _AutoScroll = value; autoscroll_timer.Enabled = value; } }

        private bool _RedirectConsoleOutput;
        public bool RedirectConsoleOutput
        {
            get { return _RedirectConsoleOutput; }
            set
            {
                _RedirectConsoleOutput = value;
                if (value) { Console.SetOut(this.Log); }
                else
                {
                    Stream stream = Console.OpenStandardOutput(0x100);
                    TextWriter writer = null;
                    if (stream == Stream.Null) { writer = TextWriter.Synchronized(StreamWriter.Null); }
                    Encoding encoding = this.Log.Encoding;
                    StreamWriter writer2 = new StreamWriter(stream, encoding, 0x100);
                    //writer2.HaveWrittenPreamble = true;
                    writer2.AutoFlush = true;
                    writer = TextWriter.Synchronized(writer2);
                    Console.SetOut(writer);
                }
            }
        }

        private void btnClearLog_Click(object sender, EventArgs e) { this.Clear(true); }
        private void btnCopyLogToClipboard_Click(object sender, EventArgs e) { Clipboard.SetText(GetLogText()); }


        private string PreserveLineEndings(string text) { return text.Replace("\n", System.Environment.NewLine); }


        private bool BeginUpdate;
        public void BeginLogUpdate()
        {
            BeginUpdate = true;
        }
        public void EndLogUpdate()
        {
            if (txtLog.InvokeRequired)
            {
                this.Invoke(delegate_EndLogUpdate);
            }
            else
            {
                StringReader _sr = new StringReader(GetLogText());
                List<string> lines = new List<string>();
                string line = "";
                while ((line = _sr.ReadLine()) != null)
                {
                    lines.Add(line);
                }
                txtLog.Lines = lines.ToArray();
                BeginUpdate = false;
            }
        }
        private string StreamToString()
        {
            string value = "";
            sr = new StreamReader(ms);
            sr.BaseStream.Seek(0, SeekOrigin.Begin);
            value = sr.ReadToEnd();
            return value;
        }
        public string GetLogText()
        {
            //if (txtLog.InvokeRequired)
            //{
            //    return (string)this.Invoke(HandleGetLogText, new object[] { });
            //}
            //else
            //{
            return PreserveLineEndings(StreamToString());
            //}

        }
        public void SetLogText(string value)
        {
            FileStream fs = new FileStream(LOG_PATH, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
            StreamWriter writer = new StreamWriter(fs);
            writer.AutoFlush = true;
            if (value == Log.NewLine) { writer.Write(System.Environment.NewLine); }
            else { writer.Write(value); }
            writer.Close();
            //string text = value.Replace(System.Environment.NewLine,"");
            string text = value.Replace(System.Environment.NewLine, Log.NewLine);
            //if (text.StartsWith(Log.NewLine))
            //{
            //    text = text.Remove(0, Log.NewLine.Length);
            //}
            sw.Write(text);
            Application.DoEvents();
        }

        new public string Text
        {
            get
            {
                throw new InvalidOperationException("Please use GetLogText()");
            }
            private set
            {
                throw new InvalidOperationException("Please use SetLogText(string value)");
            }
        }
        public void CreateNewLog(bool delete)
        {
            if (delete)
            {
                FileInfo fi = new FileInfo(LOG_PATH);
                if (fi.Exists)
                    fi.Delete();
            }
            Log.WriteLine("{0} ({2} v{3} {4}) created on {1}", LoggingConstants.AppLogFile, DateTime.Now.ToString(), LoggingConstants.AppName, LoggingConstants.AppVersion, LoggingConstants.AppBuild);     
        }
        public void Clear()
        {
            Clear(false);
        }
        private void Clear(bool force)
        {
            bool allow_log_clearing = false;
#if ALLOW_LOG_CLEARING
            allow_log_clearing = true;
#endif
            if (force || allow_log_clearing)
            {

                txtLog.Clear();
                ms = new MemoryStream();
                sw = new StreamWriter(ms);
                sw.AutoFlush = true;
                sr = new StreamReader(ms);
            }
        }
        #region sub-classes
        public class LogStream : TextWriter
        {
            private StringBuilder strMessage = new StringBuilder();
            public LogStream() : this(null) { }
            public LogStream(LogWriter text) : base() { _text_writer = text; this.NewLine = "\n"; }
            private LogWriter _text_writer;
            private void _write(string message) { if (_text_writer == null) return; _text_writer.SetLogText(string.Format("{0}", message)); }
            #region Overriden Methods
            public override Encoding Encoding { get { return Encoding.UTF8; } }
            public override void Write(char value) { base.Write(value); _write(value.ToString()); if (!_text_writer.BeginUpdate) _text_writer.EndLogUpdate(); }
            #endregion
        }
        #endregion

        private void autoscroll_timer_Tick(object sender, EventArgs e)
        {           
            try
            {
                if (this.DesignMode) { return; }
                ////txtLog.ScrollToEnd();
                //txtLog.SelectionStart = txtLog.Text.Length - 100;
                //txtLog.ScrollToCaret();
                //txtLog.Refresh();

                //txtLog.SelectionStart = 0;
                //txtLog.ScrollToCaret();
                //txtLog.Refresh();

                //int last_line_position = -1;
                //int position = -1;
                int len = txtLog.Text.Length;
                //StringReader sr = new StringReader(this.StreamToString());
                //string line = "";
                //while ((line = sr.ReadLine()) != null)
                //{
                //    position += (line.Length * 2);
                //    last_line_position = (line.Length * 2);
                //    //if (line.EndsWith("/n"))
                //    //{
                //    //    position++;
                //    //}
                //    //logger.VerboseDebug.WriteLine("current line: {0}", line);
                //}
                txtLog.SelectionStart = len;
                txtLog.ScrollToCaret();
                txtLog.Refresh();
                //autoscroll_timer.Enabled = false;
            }
            catch { }

        }
    }
}
 
Revision:	246
Committed:	Sun Jun 3 15:15:51 2012 UTC (11 years, 6 months ago) by william
File size:	9104 byte(s)
Log Message:
#	User	Rev	Content
1	william	17	#define ALLOW_LOG_CLEARING // when defined will allow the log to be cleared
2			using System;
3			using System.Collections.Generic;
4			using System.ComponentModel;
5			using System.Drawing;
6			using System.Data;
7			using System.Linq;
8			using System.Text;
9			using System.Windows.Forms;
10			using System.IO;
11	william	23	using System.Reflection;
12	william	17
13			namespace RomCheater.Logging
14			{
15			public partial class LogWriter : UserControl
16			{
17	william	61	private static string LOG_PATH { get { return string.Format(@"{0}\{1}", typeof(LogWriter).Assembly.Location.Replace("RomCheater.Logging.dll", ""), LoggingConstants.AppLogFile); } }
18	william	18
19	william	17	private delegate string OnGetLogText();
20			private delegate void OnSetLogText(string value);
21			private delegate void GenericVoidDelegate();
22
23			private OnGetLogText HandleGetLogText = null;
24			private OnSetLogText HandleSetLogText = null;
25			private GenericVoidDelegate delegate_EndLogUpdate = null;
26
27			public LogWriter() : this(false) { }
28			public LogWriter(bool redirectConsole)
29			{
30			InitializeComponent();
31			this.Log = new LogStream(this);
32			HandleGetLogText += new OnGetLogText(GetLogText);
33			HandleSetLogText += new OnSetLogText(SetLogText);
34
35			delegate_EndLogUpdate += new GenericVoidDelegate(EndLogUpdate);
36
37			this.RedirectConsoleOutput = redirectConsole;
38			toolTip1.SetToolTip(btnClearLog, "Clears the Log");
39			toolTip1.SetToolTip(btnCopyLogToClipboard, "Copies the Log to the Clipboard");
40	william	18
41	william	17	ms = new MemoryStream();
42			sw = new StreamWriter(ms);
43			sw.AutoFlush = true;
44			sr = new StreamReader(ms);
45			}
46			private LogStream _Log;
47	william	18	public LogStream Log { get { return _Log; } private set { _Log = value; } }
48	william	17
49
50			private MemoryStream ms;
51			private StreamWriter sw;
52			private StreamReader sr;
53	william	105	private bool _AutoScroll;
54			new public bool AutoScroll { get { return _AutoScroll; } set { _AutoScroll = value; autoscroll_timer.Enabled = value; } }
55	william	17
56			private bool _RedirectConsoleOutput;
57			public bool RedirectConsoleOutput
58			{
59			get { return _RedirectConsoleOutput; }
60			set
61			{
62			_RedirectConsoleOutput = value;
63	william	18	if (value) { Console.SetOut(this.Log); }
64			else
65	william	17	{
66			Stream stream = Console.OpenStandardOutput(0x100);
67			TextWriter writer = null;
68			if (stream == Stream.Null) { writer = TextWriter.Synchronized(StreamWriter.Null); }
69			Encoding encoding = this.Log.Encoding;
70			StreamWriter writer2 = new StreamWriter(stream, encoding, 0x100);
71			//writer2.HaveWrittenPreamble = true;
72			writer2.AutoFlush = true;
73			writer = TextWriter.Synchronized(writer2);
74	william	18	Console.SetOut(writer);
75	william	17	}
76			}
77			}
78
79			private void btnClearLog_Click(object sender, EventArgs e) { this.Clear(true); }
80			private void btnCopyLogToClipboard_Click(object sender, EventArgs e) { Clipboard.SetText(GetLogText()); }
81
82
83			private string PreserveLineEndings(string text) { return text.Replace("\n", System.Environment.NewLine); }
84
85
86			private bool BeginUpdate;
87			public void BeginLogUpdate()
88			{
89			BeginUpdate = true;
90			}
91			public void EndLogUpdate()
92			{
93			if (txtLog.InvokeRequired)
94			{
95			this.Invoke(delegate_EndLogUpdate);
96			}
97			else
98			{
99			StringReader _sr = new StringReader(GetLogText());
100			List<string> lines = new List<string>();
101			string line = "";
102			while ((line = _sr.ReadLine()) != null)
103			{
104			lines.Add(line);
105			}
106			txtLog.Lines = lines.ToArray();
107			BeginUpdate = false;
108			}
109			}
110			private string StreamToString()
111			{
112			string value = "";
113			sr = new StreamReader(ms);
114			sr.BaseStream.Seek(0, SeekOrigin.Begin);
115			value = sr.ReadToEnd();
116			return value;
117			}
118			public string GetLogText()
119			{
120			//if (txtLog.InvokeRequired)
121			//{
122			// return (string)this.Invoke(HandleGetLogText, new object[] { });
123			//}
124			//else
125			//{
126			return PreserveLineEndings(StreamToString());
127			//}
128
129			}
130			public void SetLogText(string value)
131			{
132	william	18	FileStream fs = new FileStream(LOG_PATH, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
133			StreamWriter writer = new StreamWriter(fs);
134			writer.AutoFlush = true;
135	william	19	if (value == Log.NewLine) { writer.Write(System.Environment.NewLine); }
136			else { writer.Write(value); }
137	william	18	writer.Close();
138	william	106	//string text = value.Replace(System.Environment.NewLine,"");
139			string text = value.Replace(System.Environment.NewLine, Log.NewLine);
140	william	155	//if (text.StartsWith(Log.NewLine))
141			//{
142			// text = text.Remove(0, Log.NewLine.Length);
143			//}
144	william	106	sw.Write(text);
145	william	105	Application.DoEvents();
146	william	17	}
147	william	105
148	william	17	new public string Text
149			{
150			get
151			{
152			throw new InvalidOperationException("Please use GetLogText()");
153			}
154			private set
155			{
156			throw new InvalidOperationException("Please use SetLogText(string value)");
157			}
158			}
159	william	23	public void CreateNewLog(bool delete)
160	william	22	{
161	william	23	if (delete)
162			{
163			FileInfo fi = new FileInfo(LOG_PATH);
164			if (fi.Exists)
165			fi.Delete();
166			}
167	william	105	Log.WriteLine("{0} ({2} v{3} {4}) created on {1}", LoggingConstants.AppLogFile, DateTime.Now.ToString(), LoggingConstants.AppName, LoggingConstants.AppVersion, LoggingConstants.AppBuild);
168	william	22	}
169	william	18	public void Clear()
170	william	17	{
171			Clear(false);
172			}
173			private void Clear(bool force)
174			{
175			bool allow_log_clearing = false;
176			#if ALLOW_LOG_CLEARING
177			allow_log_clearing = true;
178			#endif
179			if (force \|\| allow_log_clearing)
180			{
181	william	18
182	william	17	txtLog.Clear();
183			ms = new MemoryStream();
184			sw = new StreamWriter(ms);
185			sw.AutoFlush = true;
186			sr = new StreamReader(ms);
187			}
188			}
189			#region sub-classes
190			public class LogStream : TextWriter
191	william	18	{
192	william	105	private StringBuilder strMessage = new StringBuilder();
193	william	17	public LogStream() : this(null) { }
194			public LogStream(LogWriter text) : base() { _text_writer = text; this.NewLine = "\n"; }
195			private LogWriter _text_writer;
196	william	155	private void _write(string message) { if (_text_writer == null) return; _text_writer.SetLogText(string.Format("{0}", message)); }
197	william	17	#region Overriden Methods
198			public override Encoding Encoding { get { return Encoding.UTF8; } }
199			public override void Write(char value) { base.Write(value); _write(value.ToString()); if (!_text_writer.BeginUpdate) _text_writer.EndLogUpdate(); }
200	william	18	#endregion
201	william	17	}
202	william	18	#endregion
203	william	105
204			private void autoscroll_timer_Tick(object sender, EventArgs e)
205	william	155	{
206	william	113	try
207			{
208			if (this.DesignMode) { return; }
209	william	155	////txtLog.ScrollToEnd();
210			//txtLog.SelectionStart = txtLog.Text.Length - 100;
211	william	113	//txtLog.ScrollToCaret();
212			//txtLog.Refresh();
213	william	105
214	william	246	//txtLog.SelectionStart = 0;
215			//txtLog.ScrollToCaret();
216			//txtLog.Refresh();
217	william	105
218	william	246	//int last_line_position = -1;
219			//int position = -1;
220	william	113	int len = txtLog.Text.Length;
221	william	246	//StringReader sr = new StringReader(this.StreamToString());
222			//string line = "";
223			//while ((line = sr.ReadLine()) != null)
224			//{
225			// position += (line.Length * 2);
226			// last_line_position = (line.Length * 2);
227			// //if (line.EndsWith("/n"))
228			// //{
229			// // position++;
230			// //}
231			// //logger.VerboseDebug.WriteLine("current line: {0}", line);
232			//}
233			txtLog.SelectionStart = len;
234	william	113	txtLog.ScrollToCaret();
235			txtLog.Refresh();
236			//autoscroll_timer.Enabled = false;
237	william	105	}
238	william	113	catch { }
239	william	105
240			}
241	william	17	}
242			}
243	william	105