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