win/C#/frmGenPreview.cs

   1 using System;\r
   2 using System.Collections.Generic;\r
   3 using System.ComponentModel;\r
   4 using System.Data;\r
   5 using System.Drawing;\r
   6 using System.Text;\r
   7 using System.Windows.Forms;\r
   8 using System.Threading;\r
   9 using System.Diagnostics;\r
  10 using System.IO;\r
  11 \r
  12 namespace Handbrake\r
  13 {\r
  14     public partial class frmGenPreview : Form\r
  15     {\r
  16         private delegate void UpdateHandler();\r
  17         Handbrake.QueryGenerator queryGen = new Handbrake.QueryGenerator();\r
  18         Functions.Encode process = new Functions.Encode();\r
  19         Process hbProc;\r
  20         frmMain mainWindow;\r
  21 \r
  22         public frmGenPreview(frmMain mw)\r
  23         {\r
  24             InitializeComponent();\r
  25             this.mainWindow = mw;\r
  26             cb_duration.SelectedIndex = 0;\r
  27         }\r
  28 \r
  29         private void btn_play_Click(object sender, EventArgs e)\r
  30         {\r
  31             String currently_playing;\r
  32 \r
  33             // Get the Destination of the sample video.\r
  34             currently_playing = "";\r
  35             if (mainWindow.text_destination.Text != "")\r
  36                 currently_playing = mainWindow.text_destination.Text.Replace(".m", "_sample.m").Replace(".avi", "_sample.avi").Replace(".ogm", "_sample.ogm");\r
  37             \r
  38             // Launch VLC and play video.\r
  39             if (currently_playing != "")\r
  40             {\r
  41                 if (File.Exists(Properties.Settings.Default.VLC_Path))\r
  42                 {\r
  43                     String args = "\"" + currently_playing + "\"";\r
  44                     ProcessStartInfo vlc = new ProcessStartInfo(Properties.Settings.Default.VLC_Path, args);\r
  45                     Process.Start(vlc);\r
  46                     lbl_status.Text = "VLC will now launch.";\r
  47                 }\r
  48                 else\r
  49                 {\r
  50                     MessageBox.Show("Unable to detect VLC Player. \nPlease make sure VLC is installed and the directory specified in the program options is correct.", "VLC", MessageBoxButtons.OK, MessageBoxIcon.Information);\r
  51                 }\r
  52             }\r
  53         }\r
  54 \r
  55         private void btn_encode_Click(object sender, EventArgs e)\r
  56         {\r
  57             String query = queryGen.GeneratePreviewQuery(mainWindow, cb_duration.Text);\r
  58             ThreadPool.QueueUserWorkItem(procMonitor, query);\r
  59         }\r
  60         private void procMonitor(object state)\r
  61         {\r
  62             // Make sure we are not already encoding and if we are then display an error.\r
  63             if (hbProc != null)\r
  64                 MessageBox.Show("Handbrake is already encoding a video!", "Status", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
  65             else\r
  66             {\r
  67                 encodingMessage();\r
  68                 hbProc = process.runCli(this, (string)state);\r
  69                 hbProc.WaitForExit();\r
  70                 hbProc = null;\r
  71                 updateUIElements();\r
  72             }\r
  73         }\r
  74         // Update the UI now that the encode has finished.\r
  75         private void encodingMessage()\r
  76         {\r
  77             try\r
  78             {\r
  79                 if (this.InvokeRequired)\r
  80                 {\r
  81                     this.BeginInvoke(new UpdateHandler(encodingMessage));\r
  82                     return;\r
  83                 }\r
  84                 lbl_status.Text = "Encoding, Please wait ...";\r
  85             }\r
  86             catch (Exception exc)\r
  87             {\r
  88                 MessageBox.Show(exc.ToString());\r
  89             }\r
  90         }\r
  91 \r
  92         // Update the UI now that the encode has finished.\r
  93         private void updateUIElements()\r
  94         {\r
  95             try\r
  96             {\r
  97                 if (this.InvokeRequired)\r
  98                 {\r
  99                     this.BeginInvoke(new UpdateHandler(updateUIElements));\r
 100                     return;\r
 101                 }\r
 102 \r
 103                 btn_play.Visible = true;\r
 104                 toolStripSeparator1.Visible = true;\r
 105                 lbl_status.Text = "Your sample is ready to play.";\r
 106             }\r
 107             catch (Exception exc)\r
 108             {\r
 109                 MessageBox.Show(exc.ToString());\r
 110             }\r
 111         }\r
 112 \r
 113 \r
 114     }\r
 115 }\r