WinGui:

- Refactor the Activity window code. Hopefully the code is not thread-safe which should fix a couple of display problems with the log view.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@3056 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 111 insertions, 167 deletions

diff --git a/win/C#/frmActivityWindow.cs b/win/C#/frmActivityWindow.cs
index 9d004ffc7..66561164d 100644
--- a/win/C#/frmActivityWindow.cs
+++ b/win/C#/frmActivityWindow.cs
@@ -11,133 +11,108 @@ using System.Windows.Forms;
 using System.IO;

 using System.Threading;

 using Handbrake.Functions;

-using Microsoft.Win32;

-

+using Timer = System.Threading.Timer;

 

 namespace Handbrake

 {

     public partial class frmActivityWindow : Form

     {

-        private delegate void setTextCallback(StringBuilder text);

-        private delegate void setTextClearCallback();

-        private static int _position;

-        private static string _lastMode;

-        private static string _currentMode;

-        private Thread _monitor;

-        private Boolean _kilLThread;

-

+        private delegate void SetTextCallback(StringBuilder text);

+        private delegate void SetTextClearCallback();

+        private int Position;

+        private string LastMode;

+        private string CurrentMode;

+        private Timer WindowTimer;

+ 

         public frmActivityWindow(string mode)

         {

             InitializeComponent();

 

-            _kilLThread = false;

-            _position = 0;

+            KilLThread = false;

+            Position = 0;

             if (mode == "scan")

                 SetScanMode();

             else

                 SetEncodeMode();

         }

+

         private void NewActivityWindow_Load(object sender, EventArgs e)

         {

-            _monitor = new Thread(LogMonitor);

-            

-            try

-            {

-                _monitor.Start();

-            }

-            catch (Exception exc)

-            {

-                MessageBox.Show("Unable to monitor HandBrakes log files. Please report this error. If the problem presists, try rebooting your computer.\n\n Debug Informaton:\n" + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

-            }

+            WindowTimer = new Timer(new TimerCallback(LogMonitor), null, 1000, 1000);

         }

 

-        private void LogMonitor()

+        private void LogMonitor(object n)

         {

-            while (true)

+            if (SetLogFile != LastMode) Reset();

+

+            // Perform the window update

+            switch (SetLogFile)

             {

-                if (!IsHandleCreated || _kilLThread) // break out the thread if the window has been disposed.

+                case "last_scan_log.txt":

+                    AppendWindowText(ReadFile("last_scan_log.txt"));

+                    LastMode = "last_scan_log.txt";

+                    break;

+                case "last_encode_log.txt":

+                    AppendWindowText(ReadFile("last_encode_log.txt"));

+                    LastMode = "last_encode_log.txt";

                     break;

-

-                // Perform a reset if require.

-                // If we have switched to a different log file, we want to start from the beginning.

-                if (SetLogFile != _lastMode)

-                    Reset();

-

-                // Perform the window update

-                switch (SetLogFile)

-                {

-                    case "last_scan_log.txt":

-                        AppendWindowText(ReadFile("last_scan_log.txt"));

-                        _lastMode = "last_scan_log.txt";

-                        break;

-                    case "last_encode_log.txt":

-                        AppendWindowText(ReadFile("last_encode_log.txt"));

-                        _lastMode = "last_encode_log.txt";

-                        break;

-                }

-

-                try

-                {

-                    Thread.Sleep(1000);

-                }

-                catch (ThreadInterruptedException)

-                {

-                    // Do Nothnig.

-                }

-

             }

         }

         private StringBuilder ReadFile(string file)

         {

             StringBuilder appendText = new StringBuilder();

-

-            // last_encode_log.txt is the primary log file. Since .NET can't read this file whilst the CLI is outputing to it (Not even in read only mode),

-            // we'll need to make a copy of it.

-            string logDir = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\HandBrake\\logs";

-            string logFile = Path.Combine(logDir, file);

-            string logFile2 = Path.Combine(logDir, "tmp_appReadable_log.txt");

-

-            try

+            lock (this)

             {

-                // Make sure the application readable log file does not already exist. FileCopy fill fail if it does.

-                if (File.Exists(logFile2))

-                    File.Delete(logFile2);

+                // last_encode_log.txt is the primary log file. Since .NET can't read this file whilst the CLI is outputing to it (Not even in read only mode),

+                // we'll need to make a copy of it.

+                string logDir = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) +

+                                "\\HandBrake\\logs";

+                string logFile = Path.Combine(logDir, file);

+                string logFile2 = Path.Combine(logDir, "tmp_appReadable_log.txt");

 

-                // Copy the log file.

-                if (File.Exists(logFile))

-                    File.Copy(logFile, logFile2, true);

-                else

+                try

                 {

-                    appendText.AppendFormat("Waiting for the log file to be generated ...\n");

-                    _position = 0;

-                    ClearWindowText();

-                    PrintLogHeader();

-                    return appendText;

-                }

+                    // Make sure the application readable log file does not already exist. FileCopy fill fail if it does.

+                    if (File.Exists(logFile2))

+                        File.Delete(logFile2);

 

-                // Start the Reader

-                // Only use text which continues on from the last read line

-                StreamReader sr = new StreamReader(logFile2);

-                string line;

-                int i = 1;

-                while ((line = sr.ReadLine()) != null)

-                {

-                    if (i > _position)

+                    // Copy the log file.

+                    if (File.Exists(logFile))

+                        File.Copy(logFile, logFile2, true);

+                    else

                     {

-                        appendText.AppendLine(line);

-                        _position++;

+                        appendText.AppendFormat("Waiting for the log file to be generated ...\n");

+                        Position = 0;

+                        ClearWindowText();

+                        PrintLogHeader();

+                        return appendText;

                     }

-                    i++;

-                }

-                sr.Close();

-                sr.Dispose();

 

-            }

-            catch (Exception exc)

-            {

-                appendText.AppendFormat("\n The Log file could not be read. You may need to restart HandBrake! " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);

-                _position = 0;

-                ClearWindowText();

+                    // Start the Reader

+                    // Only use text which continues on from the last read line

+                    StreamReader sr = new StreamReader(logFile2);

+                    string line;

+                    int i = 1;

+                    while ((line = sr.ReadLine()) != null)

+                    {

+                        if (i > Position)

+                        {

+                            appendText.AppendLine(line);

+                            Position++;

+                        }

+                        i++;

+                    }

+                    sr.Close();

+                    sr.Dispose();

+

+                }

+                catch (Exception exc)

+                {

+                    Reset();

+                    appendText = new StringBuilder();

+                    appendText.AppendFormat(

+                        "\nThe Log file is currently in use. Waiting for the log file to become accessible ...\n");

+                }

             }

             return appendText;

         }

@@ -149,15 +124,13 @@ namespace Handbrake
                 {

                     if (rtf_actLog.InvokeRequired)

                     {

-                        IAsyncResult invoked = BeginInvoke(new setTextCallback(AppendWindowText), new object[] { text });

+                        IAsyncResult invoked = BeginInvoke(new SetTextCallback(AppendWindowText), new object[] { text });

                         EndInvoke(invoked);

                     }

                     else

-                        rtf_actLog.AppendText(text.ToString());

+                        lock (rtf_actLog)

+                            rtf_actLog.AppendText(text.ToString());

                 }

-            } catch(ThreadInterruptedException)

-            {

-                // Do Nothing

             }

             catch (Exception exc)

             {

@@ -172,11 +145,12 @@ namespace Handbrake
                 {

                     if (rtf_actLog.InvokeRequired)

                     {

-                        IAsyncResult invoked = BeginInvoke(new setTextClearCallback(ClearWindowText));

+                        IAsyncResult invoked = BeginInvoke(new SetTextClearCallback(ClearWindowText));

                         EndInvoke(invoked);

                     }

                     else

-                        rtf_actLog.Clear();

+                        lock(rtf_actLog)

+                            rtf_actLog.Clear();

                 }

             }

             catch (Exception exc)

@@ -192,21 +166,28 @@ namespace Handbrake
                 {

                     if (rtf_actLog.InvokeRequired)

                     {

-                        IAsyncResult invoked = BeginInvoke(new setTextClearCallback(PrintLogHeader));

+                        IAsyncResult invoked = BeginInvoke(new SetTextClearCallback(PrintLogHeader));

                         EndInvoke(invoked);

                     }

                     else

                     {

-                        // Print the log header. This function will be re-implimented later. Do not delete.

-                        rtf_actLog.AppendText(String.Format("### Windows GUI {1} {0} \n", Properties.Settings.Default.hb_build, Properties.Settings.Default.hb_version));

-                        rtf_actLog.AppendText(String.Format("### Running: {0} \n###\n", Environment.OSVersion));

-                        rtf_actLog.AppendText(String.Format("### CPU: {0} \n", getCpuCount()));

-                        rtf_actLog.AppendText(String.Format("### Ram: {0} MB \n", TotalPhysicalMemory()));

-                        rtf_actLog.AppendText(String.Format("### Screen: {0}x{1} \n", screenBounds().Bounds.Width, screenBounds().Bounds.Height));

-                        rtf_actLog.AppendText(String.Format("### Temp Dir: {0} \n", Path.GetTempPath()));

-                        rtf_actLog.AppendText(String.Format("### Install Dir: {0} \n", Application.StartupPath));

-                        rtf_actLog.AppendText(String.Format("### Data Dir: {0} \n", Application.UserAppDataPath));

-                        rtf_actLog.AppendText("#########################################\n\n");

+                        lock (rtf_actLog)

+                        {

+                            // Print the log header. This function will be re-implimented later. Do not delete.

+                            rtf_actLog.AppendText(String.Format("### Windows GUI {1} {0} \n",

+                                                                Properties.Settings.Default.hb_build,

+                                                                Properties.Settings.Default.hb_version));

+                            rtf_actLog.AppendText(String.Format("### Running: {0} \n###\n", Environment.OSVersion));

+                            rtf_actLog.AppendText(String.Format("### CPU: {0} \n", SystemInfo.GetCpuCount));

+                            rtf_actLog.AppendText(String.Format("### Ram: {0} MB \n", SystemInfo.TotalPhysicalMemory));

+                            rtf_actLog.AppendText(String.Format("### Screen: {0}x{1} \n",

+                                                                SystemInfo.ScreenBounds.Bounds.Width,

+                                                                SystemInfo.ScreenBounds.Bounds.Height));

+                            rtf_actLog.AppendText(String.Format("### Temp Dir: {0} \n", Path.GetTempPath()));

+                            rtf_actLog.AppendText(String.Format("### Install Dir: {0} \n", Application.StartupPath));

+                            rtf_actLog.AppendText(String.Format("### Data Dir: {0} \n", Application.UserAppDataPath));

+                            rtf_actLog.AppendText("#########################################\n\n");

+                        }

                     }

                 }

             }

@@ -218,17 +199,20 @@ namespace Handbrake
         }

         private void Reset()

         {

-            _position = 0;

+            if (WindowTimer != null)

+                WindowTimer.Dispose();

+            Position = 0;

             ClearWindowText();

-            PrintLogHeader();

+            PrintLogHeader(); 

+            WindowTimer = new Timer(new TimerCallback(LogMonitor), null, 2000, 1000);

         }

 

         #region Public

 

         public string SetLogFile

         {

-            get { return string.IsNullOrEmpty(_currentMode) ? "" : _currentMode; }

-            set { _currentMode = value; }

+            get { return string.IsNullOrEmpty(CurrentMode) ? "" : CurrentMode; }

+            set { CurrentMode = value; }

         }

         public void SetScanMode()

         {

@@ -248,26 +232,25 @@ namespace Handbrake
         #region User Interface

         private void mnu_copy_log_Click(object sender, EventArgs e)

         {

-            if (rtf_actLog.SelectedText != "")

-                Clipboard.SetDataObject(rtf_actLog.SelectedText, true);

-            else

-                Clipboard.SetDataObject(rtf_actLog.Text, true);

+            Clipboard.SetDataObject(rtf_actLog.SelectedText != "" ? rtf_actLog.SelectedText : rtf_actLog.Text, true);

         }

         private void mnu_openLogFolder_Click(object sender, EventArgs e)

         {

             string logDir = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\HandBrake\\logs";

             string windir = Environment.GetEnvironmentVariable("WINDIR");

-            System.Diagnostics.Process prc = new System.Diagnostics.Process();

-            prc.StartInfo.FileName = windir + @"\explorer.exe";

-            prc.StartInfo.Arguments = logDir;

+            System.Diagnostics.Process prc = new System.Diagnostics.Process

+                                                 {

+                                                     StartInfo =

+                                                         {

+                                                             FileName = windir + @"\explorer.exe",

+                                                             Arguments = logDir

+                                                         }

+                                                 };

             prc.Start();

         }

         private void btn_copy_Click(object sender, EventArgs e)

         {

-            if (rtf_actLog.SelectedText != "")

-                Clipboard.SetDataObject(rtf_actLog.SelectedText, true);

-            else

-                Clipboard.SetDataObject(rtf_actLog.Text, true);

+            Clipboard.SetDataObject(rtf_actLog.SelectedText != "" ? rtf_actLog.SelectedText : rtf_actLog.Text, true);

         }

         private void btn_scan_log_Click(object sender, EventArgs e)

         {

@@ -279,48 +262,9 @@ namespace Handbrake
         }

         #endregion

 

-        #region System Information

-        /// <summary>

-        /// Returns the total physical ram in a system

-        /// </summary>

-        /// <returns></returns>

-        public uint TotalPhysicalMemory()

-        {

-            Win32.MEMORYSTATUS memStatus = new Win32.MEMORYSTATUS();

-            Win32.GlobalMemoryStatus(ref memStatus);

-

-            uint MemoryInfo = memStatus.dwTotalPhys;

-            MemoryInfo = MemoryInfo / 1024 / 1024;

-

-            return MemoryInfo;

-        }

-

-        /// <summary>

-        /// Get the number of CPU Cores

-        /// </summary>

-        /// <returns>Object</returns>

-        public Object getCpuCount()

-        {

-            RegistryKey RegKey = Registry.LocalMachine;

-            RegKey = RegKey.OpenSubKey("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0");

-            return RegKey.GetValue("ProcessorNameString");

-        }

-

-        /// <summary>

-        /// Get the System screen size information.

-        /// </summary>

-        /// <returns>System.Windows.Forms.Scree</returns>

-        public Screen screenBounds()

-        {

-            return Screen.PrimaryScreen;

-        }

-        #endregion

-

         protected override void OnClosing(CancelEventArgs e)

         {

-            _kilLThread = true;

-            _monitor.Interrupt();

-            _monitor.Join();

+            WindowTimer.Dispose();

             e.Cancel = true;

             this.Dispose();

             base.OnClosing(e);