win/C#/frmPreview.cs

   1 using System;\r
   2 using System.Windows.Forms;\r
   3 using System.Threading;\r
   4 using System.Diagnostics;\r
   5 using System.Runtime.InteropServices;\r
   6 using QTOLibrary;\r
   7 \r
   8 namespace Handbrake\r
   9 {\r
  10     public partial class frmPreview : Form\r
  11     {\r
  12 \r
  13         QueryGenerator hb_common_func = new QueryGenerator();\r
  14         Functions.Encode process = new Functions.Encode();\r
  15         private delegate void UpdateUIHandler();\r
  16         String currently_playing = "";\r
  17         frmMain mainWindow;\r
  18         private Process hbProc;\r
  19         private Thread player;\r
  20 \r
  21         public frmPreview(frmMain mw)\r
  22         {\r
  23             InitializeComponent();\r
  24             this.mainWindow = mw;\r
  25             cb_preview.SelectedIndex = 0;\r
  26             cb_duration.SelectedIndex = 1;\r
  27         }\r
  28 \r
  29         private void play()\r
  30         {\r
  31             player = new Thread(OpenMovie) {IsBackground = true};\r
  32             player.Start();\r
  33         }\r
  34 \r
  35         [STAThread]\r
  36         private void OpenMovie()\r
  37         {\r
  38             try\r
  39             {\r
  40                 if (InvokeRequired)\r
  41                 {\r
  42                     BeginInvoke(new UpdateUIHandler(OpenMovie));\r
  43                     return;\r
  44                 }\r
  45                 QTControl.URL = currently_playing;\r
  46                 QTControl.Width = QTControl.Movie.Width;\r
  47                 QTControl.Height = QTControl.Movie.Height;\r
  48                 // The initial control size is 64,64. If we do not reload the clip here\r
  49                 // it'll scale the video from 64,64. \r
  50                 // Unsure why as it correctly resizes the control to the movies actual size.\r
  51                 QTControl.URL = currently_playing; \r
  52                 QTControl.SetScale(0);\r
  53                 QTControl.Show();\r
  54 \r
  55                 this.Width = QTControl.Width + 5;\r
  56                 this.Height = QTControl.Height + 90;\r
  57             }\r
  58             catch (COMException ex)\r
  59             {\r
  60                 QTUtils qtu = new QTUtils();\r
  61                 MessageBox.Show("Unable to open movie:\n\nError Code: " + ex.ErrorCode.ToString("X") + "\nQT Error code : " + qtu.QTErrorFromErrorCode(ex.ErrorCode));\r
  62             }\r
  63             catch (Exception ex)\r
  64             {\r
  65                 MessageBox.Show("Unable to open movie:\n\n" + ex);\r
  66             }\r
  67         }\r
  68  \r
  69         #region Encode Sample\r
  70         private void btn_encode_Click(object sender, EventArgs e)\r
  71         {\r
  72             btn_encode.Enabled = false;\r
  73             lbl_encode.Text = "Encoding Sample ...";\r
  74             String query = hb_common_func.GeneratePreviewQuery(mainWindow, cb_duration.Text, cb_preview.Text);\r
  75             ThreadPool.QueueUserWorkItem(procMonitor, query);\r
  76         }\r
  77         private void procMonitor(object state)\r
  78         {\r
  79             // Make sure we are not already encoding and if we are then display an error.\r
  80             if (hbProc != null)\r
  81                 MessageBox.Show("Handbrake is already encoding a video!", "Status", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
  82             else\r
  83             {\r
  84                 hbProc = process.runCli(this, (string)state);\r
  85                 hbProc.WaitForExit();\r
  86                 hbProc = null;\r
  87                 encodeCompleted();\r
  88             }\r
  89         }\r
  90         private void encodeCompleted()\r
  91         {\r
  92             try\r
  93             {\r
  94                 if (InvokeRequired)\r
  95                 {\r
  96                     BeginInvoke(new UpdateUIHandler(encodeCompleted));\r
  97                     return;\r
  98                 }\r
  99                 btn_encode.Enabled = true;\r
 100                 lbl_encode.Text = "Loading Clip ...";\r
 101 \r
 102                 if (mainWindow.text_destination.Text != "")\r
 103                     currently_playing = mainWindow.text_destination.Text.Replace(".m", "_sample.m").Replace(".avi", "_sample.avi").Replace(".ogm", "_sample.ogm");\r
 104 \r
 105                 play();\r
 106                 lbl_encode.Text = "";\r
 107             }\r
 108             catch (Exception exc)\r
 109             {\r
 110                 MessageBox.Show("frmPreview.cs encodeCompleted " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);\r
 111             }\r
 112         }\r
 113         #endregion\r
 114 \r
 115     }\r
 116 }