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