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 \r
  12 namespace Handbrake\r
  13 {\r
  14     public partial class frmQueue : Form\r
  15     {\r
  16         private delegate void UpdateHandler();\r
  17         Queue.QueueHandler queue;\r
  18 \r
  19         public frmQueue(Queue.QueueHandler q)\r
  20         {\r
  21             InitializeComponent();\r
  22 \r
  23             this.queue = q;\r
  24             queue.OnEncodeStart += new EventHandler(queue_OnEncodeStart);\r
  25             queue.OnQueueFinished += new EventHandler(queue_OnQueueFinished);\r
  26             queue.OnPaused += new EventHandler(queue_OnPaused);\r
  27         }\r
  28         void queue_OnPaused(object sender, EventArgs e)\r
  29         {\r
  30             setUIEncodeFinished();\r
  31             updateUIElements();\r
  32         }\r
  33         void queue_OnQueueFinished(object sender, EventArgs e)\r
  34         {\r
  35             setUIEncodeFinished();\r
  36             resetQueue(); // Reset the Queue Window\r
  37         }\r
  38         void queue_OnEncodeStart(object sender, EventArgs e)\r
  39         {\r
  40             setUIEncodeStarted(); // make sure the UI is set correctly\r
  41             setCurrentEncodeInformation();\r
  42             updateUIElements(); // Redraw the Queue, a new encode has started.\r
  43         }\r
  44 \r
  45         /// <summary>\r
  46         /// Initializes the Queue list with the Arraylist from the Queue class\r
  47         /// </summary>\r
  48         public void setQueue()\r
  49         {\r
  50             updateUIElements();\r
  51         }\r
  52 \r
  53         /// <summary>\r
  54         /// Initializes the Queue list, then shows and activates the window\r
  55         /// </summary>\r
  56         public new void Show()\r
  57         {\r
  58             Show(true);\r
  59         }\r
  60 \r
  61         /// <summary>\r
  62         /// Initializes the Queue list only if doSetQueue is true, then shows and activates the window\r
  63         /// </summary>\r
  64         /// <param name="doSetQueue">Indicates whether to call setQueue() before showing the window</param>\r
  65         public void Show(bool doSetQueue)\r
  66         {\r
  67             if (doSetQueue) setQueue();\r
  68             base.Show();\r
  69             Activate();\r
  70         }\r
  71 \r
  72         // Start and Stop Controls\r
  73         private void btn_encode_Click(object sender, EventArgs e)\r
  74         {\r
  75             if (queue.isPaused)\r
  76             {\r
  77                 setUIEncodeStarted();\r
  78                 MessageBox.Show("Encoding restarted", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);\r
  79             }\r
  80 \r
  81             if (!queue.isEncodeStarted)\r
  82                 queue.startEncode();\r
  83 \r
  84         }\r
  85         private void btn_pause_Click(object sender, EventArgs e)\r
  86         {\r
  87             queue.pauseEncode();\r
  88             setUIEncodeFinished();\r
  89             resetQueue();\r
  90             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
  91         }\r
  92 \r
  93         // Window Display Management\r
  94         private void setUIEncodeStarted()\r
  95         {\r
  96             if (InvokeRequired)\r
  97             {\r
  98                 BeginInvoke(new UpdateHandler(setUIEncodeStarted));\r
  99                 return;\r
 100             }\r
 101             btn_encode.Enabled = false;\r
 102             btn_pause.Visible = true;\r
 103         }\r
 104         private void setUIEncodeFinished()\r
 105         {\r
 106             if (InvokeRequired)\r
 107             {\r
 108                 BeginInvoke(new UpdateHandler(setUIEncodeFinished));\r
 109                 return;\r
 110             }\r
 111             btn_pause.Visible = false;\r
 112             btn_encode.Enabled = true;\r
 113         }\r
 114         private void resetQueue()\r
 115         {\r
 116             if (InvokeRequired)\r
 117             {\r
 118                 BeginInvoke(new UpdateHandler(resetQueue));\r
 119                 return;\r
 120             }\r
 121             btn_pause.Visible = false;\r
 122             btn_encode.Enabled = true;\r
 123 \r
 124             lbl_source.Text = "-";\r
 125             lbl_dest.Text = "-";\r
 126             lbl_vEnc.Text = "-";\r
 127             lbl_aEnc.Text = "-";\r
 128             lbl_title.Text = "-";\r
 129             lbl_chapt.Text = "-";\r
 130 \r
 131             lbl_encodesPending.Text = list_queue.Items.Count + " encode(s) pending";\r
 132         }\r
 133         private void redrawQueue()\r
 134         {\r
 135             if (InvokeRequired)\r
 136             {\r
 137                 BeginInvoke(new UpdateHandler(redrawQueue));\r
 138                 return;\r
 139             }\r
 140 \r
 141             list_queue.Items.Clear();\r
 142             List<Queue.QueueItem> theQueue = queue.getQueue();\r
 143             foreach (Queue.QueueItem queue_item in theQueue)\r
 144             {\r
 145                 string q_item = queue_item.Query;\r
 146                 Functions.QueryParser parsed = Functions.QueryParser.Parse(q_item);\r
 147 \r
 148                 // Get the DVD Title\r
 149                 string title = parsed.DVDTitle == 0 ? "Auto" : parsed.DVDTitle.ToString();\r
 150 \r
 151                 // Get the DVD Chapters\r
 152                 string chapters;\r
 153                 if (parsed.DVDChapterStart == 0)\r
 154                     chapters = "Auto";\r
 155                 else\r
 156                 {\r
 157                     chapters = parsed.DVDChapterStart.ToString();\r
 158                     if (parsed.DVDChapterFinish != 0)\r
 159                         chapters = chapters + " - " + parsed.DVDChapterFinish;\r
 160                 }\r
 161 \r
 162                 ListViewItem item = new ListViewItem();\r
 163                 item.Text = title; // Title\r
 164                 item.SubItems.Add(chapters); // Chapters\r
 165                 item.SubItems.Add(queue_item.Source); // Source\r
 166                 item.SubItems.Add(queue_item.Destination); // Destination\r
 167                 item.SubItems.Add(parsed.VideoEncoder); // Video\r
 168 \r
 169                 // Display The Audio Track Information\r
 170                 string audio = string.Empty;\r
 171                 foreach (Functions.AudioTrack track in parsed.AudioInformation)\r
 172                 {\r
 173                     if (audio != "")\r
 174                         audio += ", " + track.Encoder;\r
 175                     else\r
 176                         audio = track.Encoder;\r
 177                 }\r
 178                 item.SubItems.Add(audio); // Audio\r
 179 \r
 180                 list_queue.Items.Add(item);\r
 181             }\r
 182         }\r
 183         private void updateUIElements()\r
 184         {\r
 185             if (InvokeRequired)\r
 186             {\r
 187                 BeginInvoke(new UpdateHandler(updateUIElements));\r
 188                 return;\r
 189             }\r
 190 \r
 191             redrawQueue();\r
 192             lbl_encodesPending.Text = list_queue.Items.Count + " encode(s) pending";\r
 193         }\r
 194         private void setCurrentEncodeInformation()\r
 195         {\r
 196             try\r
 197             {\r
 198                 if (InvokeRequired)\r
 199                 {\r
 200                     BeginInvoke(new UpdateHandler(setCurrentEncodeInformation));\r
 201                 }\r
 202 \r
 203                 // found query is a global varible\r
 204                 Functions.QueryParser parsed = Functions.QueryParser.Parse(queue.lastQueueItem.Query);\r
 205                 lbl_source.Text = queue.lastQueueItem.Source;\r
 206                 lbl_dest.Text = queue.lastQueueItem.Destination;\r
 207 \r
 208                 lbl_title.Text = parsed.DVDTitle == 0 ? "Auto" : parsed.DVDTitle.ToString();\r
 209 \r
 210                 if (Equals(parsed.DVDChapterStart, 0))\r
 211                     lbl_chapt.Text = "Auto";\r
 212                 else\r
 213                 {\r
 214                     string chapters = parsed.DVDChapterStart.ToString();\r
 215                     if (parsed.DVDChapterFinish != 0)\r
 216                         chapters = chapters + " - " + parsed.DVDChapterFinish;\r
 217                     lbl_chapt.Text = chapters;\r
 218                 }\r
 219 \r
 220                 lbl_vEnc.Text = parsed.VideoEncoder;\r
 221 \r
 222                 // Display The Audio Track Information\r
 223                 string audio = string.Empty;\r
 224                 foreach (Functions.AudioTrack track in parsed.AudioInformation)\r
 225                 {\r
 226                     if (audio != "")\r
 227                         audio += ", " + track.Encoder;\r
 228                     else\r
 229                         audio = track.Encoder;\r
 230                 }\r
 231                 lbl_aEnc.Text = audio;\r
 232             }\r
 233             catch (Exception)\r
 234             {\r
 235                 // Do Nothing\r
 236             }\r
 237         }\r
 238         private void deleteSelectedItems()\r
 239         {\r
 240             // If there are selected items\r
 241             if (list_queue.SelectedIndices.Count > 0)\r
 242             {\r
 243                 // Save the selected indices to select them after the move\r
 244                 List<int> selectedIndices = new List<int>(list_queue.SelectedIndices.Count);\r
 245                 foreach (int selectedIndex in list_queue.SelectedIndices)\r
 246                     selectedIndices.Add(selectedIndex);\r
 247 \r
 248                 int firstSelectedIndex = selectedIndices[0];\r
 249 \r
 250                 // Reverse the list to delete the items from last to first (preserves indices)\r
 251                 selectedIndices.Reverse();\r
 252 \r
 253                 // Remove each selected item\r
 254                 foreach (int selectedIndex in selectedIndices)\r
 255                     queue.remove(selectedIndex);\r
 256 \r
 257                 queue.write2disk("hb_queue_recovery.xml"); // Update the queue recovery file\r
 258                 updateUIElements();\r
 259 \r
 260                 // Select the item where the first deleted item was previously\r
 261                 if (firstSelectedIndex < list_queue.Items.Count)\r
 262                     list_queue.Items[firstSelectedIndex].Selected = true;\r
 263             }\r
 264 \r
 265             list_queue.Select(); // Activate the control to show the selected items\r
 266         }\r
 267 \r
 268         // Queue Management\r
 269         private void mnu_up_Click(object sender, EventArgs e)\r
 270         {\r
 271             moveUp();\r
 272         }\r
 273         private void mnu_Down_Click(object sender, EventArgs e)\r
 274         {\r
 275             moveDown();\r
 276         }\r
 277         private void mnu_delete_Click(object sender, EventArgs e)\r
 278         {\r
 279             deleteSelectedItems();\r
 280         }\r
 281         private void btn_up_Click(object sender, EventArgs e)\r
 282         {\r
 283             moveUp();\r
 284         }\r
 285         private void btn_down_Click(object sender, EventArgs e)\r
 286         {\r
 287             moveDown();\r
 288         }\r
 289         private void btn_delete_Click(object sender, EventArgs e)\r
 290         {\r
 291             deleteSelectedItems();\r
 292         }\r
 293         private void list_queue_deleteKey(object sender, KeyEventArgs e)\r
 294         {\r
 295             if (e.KeyCode == Keys.Delete)\r
 296                 deleteSelectedItems();\r
 297         }\r
 298         private void moveUp()\r
 299         {\r
 300             // If there are selected items and the first item is not selected\r
 301             if (list_queue.SelectedIndices.Count > 0 && !list_queue.SelectedIndices.Contains(0))\r
 302             {\r
 303                 // Copy the selected indices to preserve them during the movement\r
 304                 List<int> selectedIndices = new List<int>(list_queue.SelectedIndices.Count);\r
 305                 foreach (int selectedIndex in list_queue.SelectedIndices)\r
 306                     selectedIndices.Add(selectedIndex);\r
 307 \r
 308                 // Move up each selected item\r
 309                 foreach (int selectedIndex in selectedIndices)\r
 310                     queue.moveUp(selectedIndex);\r
 311 \r
 312                 queue.write2disk("hb_queue_recovery.xml"); // Update the queue recovery file\r
 313                 updateUIElements();\r
 314 \r
 315                 // Keep the selected item(s) selected, now moved up one index\r
 316                 foreach (int selectedIndex in selectedIndices)\r
 317                     if (selectedIndex - 1 > -1) // Defensive programming: ensure index is good\r
 318                         list_queue.Items[selectedIndex - 1].Selected = true;\r
 319             }\r
 320 \r
 321             list_queue.Select(); // Activate the control to show the selected items\r
 322         }\r
 323         private void moveDown()\r
 324         {\r
 325             // If there are selected items and the last item is not selected\r
 326             if (list_queue.SelectedIndices.Count > 0 &&\r
 327                 !list_queue.SelectedIndices.Contains(list_queue.Items[list_queue.Items.Count - 1].Index))\r
 328             {\r
 329                 // Copy the selected indices to preserve them during the movement\r
 330                 List<int> selectedIndices = new List<int>(list_queue.SelectedIndices.Count);\r
 331                 foreach (int selectedIndex in list_queue.SelectedIndices)\r
 332                     selectedIndices.Add(selectedIndex);\r
 333 \r
 334                 // Reverse the indices to move the items down from last to first (preserves indices)\r
 335                 selectedIndices.Reverse();\r
 336 \r
 337                 // Move down each selected item\r
 338                 foreach (int selectedIndex in selectedIndices)\r
 339                     queue.moveDown(selectedIndex);\r
 340 \r
 341                 queue.write2disk("hb_queue_recovery.xml"); // Update the queue recovery file\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.writeBatchScript(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.write2disk(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.recoverQueue(OpenFile.FileName);\r
 376             updateUIElements();\r
 377         }\r
 378         private void mnu_readd_Click(object sender, EventArgs e)\r
 379         {\r
 380             if (queue.lastQueueItem != null)\r
 381             {\r
 382                 queue.add(queue.lastQueueItem.Query, queue.lastQueueItem.Source, queue.lastQueueItem.Destination);\r
 383                 queue.write2disk("hb_queue_recovery.xml"); // Update the queue recovery file\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