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/* frmActivityWindow.cs $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr>.
It may be used under the terms of the GNU General Public License. */
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Threading;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace Handbrake
{
public partial class frmActivityWindow : Form
{
Thread monitorFile;
String read_file;
frmMain mainWindow;
frmQueue queueWindow;
/// <summary>
/// This window should be used to display the RAW output of the handbrake CLI which is produced during an encode.
/// </summary>
///
public frmActivityWindow(string file, frmMain fm, frmQueue fq)
{
InitializeComponent();
mainWindow = fm;
queueWindow = fq;
this.rtf_actLog.Text = string.Empty;
read_file = file;
string logFile = Path.Combine(Path.GetTempPath(), read_file);
if (File.Exists(logFile))
{
if (read_file == "dvdinfo.dat") // No need to refresh the window if we are viwing dvdinfo.dat
updateTextFromThread();
else // however, we should refresh when reading the encode log file.
{
monitorFile = new Thread(autoUpdate);
monitorFile.Start();
}
}
else
MessageBox.Show("The log file could not be found. Maybe you cleared your system's tempory folder or maybe you just havn't run an encode yet.", "Notice", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
// Update the Activity window every 5 seconds with the latest log data.
private void autoUpdate(object state)
{
updateTextFromThread();
while (true)
{
if ((mainWindow.isEncoding() == true) || (queueWindow.isEncoding() == true))
updateTextFromThread();
Thread.Sleep(5000);
}
}
private delegate void UpdateUIHandler();
private void updateTextFromThread()
{
try
{
if (this.InvokeRequired)
{
this.BeginInvoke(new UpdateUIHandler(updateTextFromThread));
return;
}
rtf_actLog.Text = readFile();
this.rtf_actLog.SelectionStart = this.rtf_actLog.Text.Length - 1;
this.rtf_actLog.ScrollToCaret();
}
catch (Exception exc)
{
MessageBox.Show(exc.ToString());
}
}
private string readFile()
{
string log = "";
try
{
// hb_encode_log.dat is the primary log file. Since .NET can't read this file whilst the CLI is outputing to it,
// we'll need to make a copy of it.
string logFile = Path.Combine(Path.GetTempPath(), read_file);
string logFile2 = Path.Combine(Path.GetTempPath(), "hb_encode_log_AppReadable.dat");
// Make sure the application readable log file does not already exist. FileCopy fill fail if it does.
if (File.Exists(logFile2))
File.Delete(logFile2);
// Copy the log file.
File.Copy(logFile, logFile2);
// Begin processing the log file.
StreamReader sr = new StreamReader(logFile2);
string line = sr.ReadLine();
while (line != null)
{
log = log + (line + System.Environment.NewLine);
line = sr.ReadLine();
}
sr.Close();
sr.Dispose();
}
catch (Exception exc)
{
MessageBox.Show("An Error has occured! \n\n" + exc.ToString(), "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
return log;
}
protected override void OnClosing(CancelEventArgs e)
{
if (monitorFile != null)
monitorFile.Abort();
e.Cancel = true;
this.Hide();
base.OnClosing(e);
}
}
}
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