win/C#/frmQueue.cs

   1 /*  frmQueue.cs $\r
   2         \r
   3            This file is part of the HandBrake source code.\r
   4            Homepage: <http://handbrake.fr>.\r
   5            It may be used under the terms of the GNU General Public License. */\r
   6 \r
   7 using System;\r
   8 using System.Collections.Generic;\r
   9 using System.ComponentModel;\r
  10 using System.Windows.Forms;\r
  11 using Handbrake.EncodeQueue;\r
  12 using System.Collections.ObjectModel;\r
  13 \r
  14 namespace Handbrake\r
  15 {\r
  16     public partial class frmQueue : Form\r
  17     {\r
  18         private delegate void UpdateHandler();\r
  19         private QueueHandler queue;\r
  20 \r
  21         public frmQueue(QueueHandler q)\r
  22         {\r
  23             InitializeComponent();\r
  24 \r
  25             this.queue = q;\r
  26             queue.NewJobStarted += new EventHandler(queueOnEncodeStart);\r
  27             queue.QueueCompleted += new EventHandler(queueOnQueueFinished);\r
  28             queue.QueuePauseRequested += new EventHandler(queueOnPaused);\r
  29         }\r
  30         void queueOnPaused(object sender, EventArgs e)\r
  31         {\r
  32             setUIEncodeFinished();\r
  33             updateUIElements();\r
  34         }\r
  35         void queueOnQueueFinished(object sender, EventArgs e)\r
  36         {\r
  37             setUIEncodeFinished();\r
  38             resetQueue(); // Reset the Queue Window\r
  39         }\r
  40         void queueOnEncodeStart(object sender, EventArgs e)\r
  41         {\r
  42             setUIEncodeStarted(); // make sure the UI is set correctly\r
  43             setCurrentEncodeInformation();\r
  44             updateUIElements(); // Redraw the Queue, a new encode has started.\r
  45         }\r
  46 \r
  47         /// <summary>\r
  48         /// Initializes the Queue list with the Arraylist from the Queue class\r
  49         /// </summary>\r
  50         public void setQueue()\r
  51         {\r
  52             updateUIElements();\r
  53         }\r
  54 \r
  55         /// <summary>\r
  56         /// Initializes the Queue list, then shows and activates the window\r
  57         /// </summary>\r
  58         public new void Show()\r
  59         {\r
  60            Show(true);\r
  61         }\r
  62 \r
  63         /// <summary>\r
  64         /// Initializes the Queue list only if doSetQueue is true, then shows and activates the window\r
  65         /// </summary>\r
  66         /// <param name="doSetQueue">Indicates whether to call setQueue() before showing the window</param>\r
  67         public void Show(bool doSetQueue)\r
  68         {\r
  69             if (doSetQueue) setQueue();\r
  70             base.Show();\r
  71 \r
  72             //Activate();\r
  73         }\r
  74 \r
  75         // Start and Stop Controls\r
  76         private void btn_encode_Click(object sender, EventArgs e)\r
  77         {\r
  78             if (queue.PauseRequested)\r
  79             {\r
  80                 setUIEncodeStarted();\r
  81                 MessageBox.Show("Encoding restarted", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);\r
  82             }\r
  83 \r
  84             if (!queue.IsEncoding)\r
  85                 queue.StartEncodeQueue();\r
  86 \r
  87         }\r
  88         private void btn_pause_Click(object sender, EventArgs e)\r
  89         {\r
  90             queue.RequestPause();\r
  91             setUIEncodeFinished();\r
  92             resetQueue();\r
  93             MessageBox.Show("No further items on the queue will start. The current encode process will continue until it is finished. \nClick 'Encode' when you wish to continue encoding the queue.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
  94         }\r
  95 \r
  96         // Window Display Management\r
  97         private void setUIEncodeStarted()\r
  98         {\r
  99             if (InvokeRequired)\r
 100             {\r
 101                 BeginInvoke(new UpdateHandler(setUIEncodeStarted));\r
 102                 return;\r
 103             }\r
 104             btn_encode.Enabled = false;\r
 105             btn_pause.Visible = true;\r
 106         }\r
 107         private void setUIEncodeFinished()\r
 108         {\r
 109             if (InvokeRequired)\r
 110             {\r
 111                 BeginInvoke(new UpdateHandler(setUIEncodeFinished));\r
 112                 return;\r
 113             }\r
 114             btn_pause.Visible = false;\r
 115             btn_encode.Enabled = true;\r
 116         }\r
 117         private void resetQueue()\r
 118         {\r
 119             if (InvokeRequired)\r
 120             {\r
 121                 BeginInvoke(new UpdateHandler(resetQueue));\r
 122                 return;\r
 123             }\r
 124             btn_pause.Visible = false;\r
 125             btn_encode.Enabled = true;\r
 126 \r
 127             lbl_source.Text = "-";\r
 128             lbl_dest.Text = "-";\r
 129             lbl_vEnc.Text = "-";\r
 130             lbl_aEnc.Text = "-";\r
 131             lbl_title.Text = "-";\r
 132             lbl_chapt.Text = "-";\r
 133 \r
 134             lbl_encodesPending.Text = list_queue.Items.Count + " encode(s) pending";\r
 135         }\r
 136         private void redrawQueue()\r
 137         {\r
 138             if (InvokeRequired)\r
 139             {\r
 140                 BeginInvoke(new UpdateHandler(redrawQueue));\r
 141                 return;\r
 142             }\r
 143 \r
 144             list_queue.Items.Clear();\r
 145             ReadOnlyCollection<Job> theQueue = queue.CurrentQueue;\r
 146             foreach (Job queue_item in theQueue)\r
 147             {\r
 148                 string q_item = queue_item.Query;\r
 149                 Functions.QueryParser parsed = Functions.QueryParser.Parse(q_item);\r
 150 \r
 151                 // Get the DVD Title\r
 152                 string title = parsed.DVDTitle == 0 ? "Auto" : parsed.DVDTitle.ToString();\r
 153 \r
 154                 // Get the DVD Chapters\r
 155                 string chapters;\r
 156                 if (parsed.DVDChapterStart == 0)\r
 157                     chapters = "Auto";\r
 158                 else\r
 159                 {\r
 160                     chapters = parsed.DVDChapterStart.ToString();\r
 161                     if (parsed.DVDChapterFinish != 0)\r
 162                         chapters = chapters + " - " + parsed.DVDChapterFinish;\r
 163                 }\r
 164 \r
 165                 ListViewItem item = new ListViewItem();\r
 166                 item.Text = title; // Title\r
 167                 item.SubItems.Add(chapters); // Chapters\r
 168                 item.SubItems.Add(queue_item.Source); // Source\r
 169                 item.SubItems.Add(queue_item.Destination); // Destination\r
 170                 item.SubItems.Add(parsed.VideoEncoder); // Video\r
 171 \r
 172                 // Display The Audio Track Information\r
 173                 string audio = string.Empty;\r
 174                 foreach (Functions.AudioTrack track in parsed.AudioInformation)\r
 175                 {\r
 176                     if (audio != "")\r
 177                         audio += ", " + track.Encoder;\r
 178                     else\r
 179                         audio = track.Encoder;\r
 180                 }\r
 181                 item.SubItems.Add(audio); // Audio\r
 182 \r
 183                 list_queue.Items.Add(item);\r
 184             }\r
 185         }\r
 186         private void updateUIElements()\r
 187         {\r
 188             if (InvokeRequired)\r
 189             {\r
 190                 BeginInvoke(new UpdateHandler(updateUIElements));\r
 191                 return;\r
 192             }\r
 193 \r
 194             redrawQueue();\r
 195             lbl_encodesPending.Text = list_queue.Items.Count + " encode(s) pending";\r
 196         }\r
 197         private void setCurrentEncodeInformation()\r
 198         {\r
 199             try\r
 200             {\r
 201                 if (InvokeRequired)\r
 202                 {\r
 203                     BeginInvoke(new UpdateHandler(setCurrentEncodeInformation));\r
 204                 }\r
 205 \r
 206                 // found query is a global varible\r
 207                 Functions.QueryParser parsed = Functions.QueryParser.Parse(queue.LastEncode.Query);\r
 208                 lbl_source.Text = queue.LastEncode.Source;\r
 209                 lbl_dest.Text = queue.LastEncode.Destination;\r
 210 \r
 211                 lbl_title.Text = parsed.DVDTitle == 0 ? "Auto" : parsed.DVDTitle.ToString();\r
 212 \r
 213                 if (Equals(parsed.DVDChapterStart, 0))\r
 214                     lbl_chapt.Text = "Auto";\r
 215                 else\r
 216                 {\r
 217                     string chapters = parsed.DVDChapterStart.ToString();\r
 218                     if (parsed.DVDChapterFinish != 0)\r
 219                         chapters = chapters + " - " + parsed.DVDChapterFinish;\r
 220                     lbl_chapt.Text = chapters;\r
 221                 }\r
 222 \r
 223                 lbl_vEnc.Text = parsed.VideoEncoder;\r
 224 \r
 225                 // Display The Audio Track Information\r
 226                 string audio = string.Empty;\r
 227                 foreach (Functions.AudioTrack track in parsed.AudioInformation)\r
 228                 {\r
 229                     if (audio != "")\r
 230                         audio += ", " + track.Encoder;\r
 231                     else\r
 232                         audio = track.Encoder;\r
 233                 }\r
 234                 lbl_aEnc.Text = audio;\r
 235             }\r
 236             catch (Exception)\r
 237             {\r
 238                 // Do Nothing\r
 239             }\r
 240         }\r
 241         private void deleteSelectedItems()\r
 242         {\r
 243             // If there are selected items\r
 244             if (list_queue.SelectedIndices.Count > 0)\r
 245             {\r
 246                 // Save the selected indices to select them after the move\r
 247                 List<int> selectedIndices = new List<int>(list_queue.SelectedIndices.Count);\r
 248                 foreach (int selectedIndex in list_queue.SelectedIndices)\r
 249                     selectedIndices.Add(selectedIndex);\r
 250 \r
 251                 int firstSelectedIndex = selectedIndices[0];\r
 252 \r
 253                 // Reverse the list to delete the items from last to first (preserves indices)\r
 254                 selectedIndices.Reverse();\r
 255 \r
 256                 // Remove each selected item\r
 257                 foreach (int selectedIndex in selectedIndices)\r
 258                     queue.RemoveJob(selectedIndex);\r
 259 \r
 260                 updateUIElements();\r
 261 \r
 262                 // Select the item where the first deleted item was previously\r
 263                 if (firstSelectedIndex < list_queue.Items.Count)\r
 264                     list_queue.Items[firstSelectedIndex].Selected = true;\r
 265             }\r
 266 \r
 267             list_queue.Select(); // Activate the control to show the selected items\r
 268         }\r
 269 \r
 270         // Queue Management\r
 271         private void mnu_up_Click(object sender, EventArgs e)\r
 272         {\r
 273             moveUp();\r
 274         }\r
 275         private void mnu_Down_Click(object sender, EventArgs e)\r
 276         {\r
 277             moveDown();\r
 278         }\r
 279         private void mnu_delete_Click(object sender, EventArgs e)\r
 280         {\r
 281             deleteSelectedItems();\r
 282         }\r
 283         private void btn_up_Click(object sender, EventArgs e)\r
 284         {\r
 285             moveUp();\r
 286         }\r
 287         private void btn_down_Click(object sender, EventArgs e)\r
 288         {\r
 289             moveDown();\r
 290         }\r
 291         private void btn_delete_Click(object sender, EventArgs e)\r
 292         {\r
 293             deleteSelectedItems();\r
 294         }\r
 295         private void list_queue_deleteKey(object sender, KeyEventArgs e)\r
 296         {\r
 297             if (e.KeyCode == Keys.Delete)\r
 298                 deleteSelectedItems();\r
 299         }\r
 300         private void moveUp()\r
 301         {\r
 302             // If there are selected items and the first item is not selected\r
 303             if (list_queue.SelectedIndices.Count > 0 && !list_queue.SelectedIndices.Contains(0))\r
 304             {\r
 305                 // Copy the selected indices to preserve them during the movement\r
 306                 List<int> selectedIndices = new List<int>(list_queue.SelectedIndices.Count);\r
 307                 foreach (int selectedIndex in list_queue.SelectedIndices)\r
 308                     selectedIndices.Add(selectedIndex);\r
 309 \r
 310                 // Move up each selected item\r
 311                 foreach (int selectedIndex in selectedIndices)\r
 312                     queue.MoveUp(selectedIndex);\r
 313 \r
 314                 updateUIElements();\r
 315 \r
 316                 // Keep the selected item(s) selected, now moved up one index\r
 317                 foreach (int selectedIndex in selectedIndices)\r
 318                     if (selectedIndex - 1 > -1) // Defensive programming: ensure index is good\r
 319                         list_queue.Items[selectedIndex - 1].Selected = true;\r
 320             }\r
 321 \r
 322             list_queue.Select(); // Activate the control to show the selected items\r
 323         }\r
 324         private void moveDown()\r
 325         {\r
 326             // If there are selected items and the last item is not selected\r
 327             if (list_queue.SelectedIndices.Count > 0 &&\r
 328                 !list_queue.SelectedIndices.Contains(list_queue.Items[list_queue.Items.Count - 1].Index))\r
 329             {\r
 330                 // Copy the selected indices to preserve them during the movement\r
 331                 List<int> selectedIndices = new List<int>(list_queue.SelectedIndices.Count);\r
 332                 foreach (int selectedIndex in list_queue.SelectedIndices)\r
 333                     selectedIndices.Add(selectedIndex);\r
 334 \r
 335                 // Reverse the indices to move the items down from last to first (preserves indices)\r
 336                 selectedIndices.Reverse();\r
 337 \r
 338                 // Move down each selected item\r
 339                 foreach (int selectedIndex in selectedIndices)\r
 340                     queue.MoveDown(selectedIndex);\r
 341 \r
 342                 updateUIElements();\r
 343 \r
 344                 // Keep the selected item(s) selected, now moved down one index\r
 345                 foreach (int selectedIndex in selectedIndices)\r
 346                     if (selectedIndex + 1 < list_queue.Items.Count) // Defensive programming: ensure index is good\r
 347                         list_queue.Items[selectedIndex + 1].Selected = true;\r
 348             }\r
 349 \r
 350             list_queue.Select(); // Activate the control to show the selected items\r
 351         }\r
 352 \r
 353         // Queue Import/Export Features\r
 354         private void mnu_batch_Click(object sender, EventArgs e)\r
 355         {\r
 356             SaveFile.FileName = "";\r
 357             SaveFile.Filter = "Batch|.bat";\r
 358             SaveFile.ShowDialog();\r
 359             if (SaveFile.FileName != String.Empty)\r
 360                 queue.WriteBatchScriptToFile(SaveFile.FileName);\r
 361         }\r
 362         private void mnu_export_Click(object sender, EventArgs e)\r
 363         {\r
 364             SaveFile.FileName = "";\r
 365             SaveFile.Filter = "HandBrake Queue|*.queue";\r
 366             SaveFile.ShowDialog();\r
 367             if (SaveFile.FileName != String.Empty)\r
 368                 queue.WriteQueueStateToFile(SaveFile.FileName);\r
 369         }\r
 370         private void mnu_import_Click(object sender, EventArgs e)\r
 371         {\r
 372             OpenFile.FileName = "";\r
 373             OpenFile.ShowDialog();\r
 374             if (OpenFile.FileName != String.Empty)\r
 375                 queue.LoadQueueFromFile(OpenFile.FileName);\r
 376             updateUIElements();\r
 377         }\r
 378         private void mnu_readd_Click(object sender, EventArgs e)\r
 379         {\r
 380             if (!queue.LastEncode.IsEmpty)\r
 381             {\r
 382                 queue.AddJob(queue.LastEncode.Query, queue.LastEncode.Source, queue.LastEncode.Destination);\r
 383                 updateUIElements();\r
 384             }\r
 385         }\r
 386 \r
 387         // Hide's the window when the user tries to "x" out of the window instead of closing it.\r
 388         protected override void OnClosing(CancelEventArgs e)\r
 389         {\r
 390             e.Cancel = true;\r
 391             this.Hide();\r
 392             base.OnClosing(e);\r
 393         }\r
 394 \r
 395     }\r
 396 }\r