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(queueOnEncodeStart);\r
  26             queue.OnQueueFinished += new EventHandler(queueOnQueueFinished);\r
  27             queue.OnPaused += new EventHandler(queueOnPaused);\r
  28         }\r
  29         void queueOnPaused(object sender, EventArgs e)\r
  30         {\r
  31             setUIEncodeFinished();\r
  32             updateUIElements();\r
  33         }\r
  34         void queueOnQueueFinished(object sender, EventArgs e)\r
  35         {\r
  36             setUIEncodeFinished();\r
  37             resetQueue(); // Reset the Queue Window\r
  38         }\r
  39         void queueOnEncodeStart(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 \r
  71             //Activate();\r
  72         }\r
  73 \r
  74         // Start and Stop Controls\r
  75         private void btn_encode_Click(object sender, EventArgs e)\r
  76         {\r
  77             if (queue.isPaused)\r
  78             {\r
  79                 setUIEncodeStarted();\r
  80                 MessageBox.Show("Encoding restarted", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);\r
  81             }\r
  82 \r
  83             if (!queue.isEncodeStarted)\r
  84                 queue.startEncode();\r
  85 \r
  86         }\r
  87         private void btn_pause_Click(object sender, EventArgs e)\r
  88         {\r
  89             queue.pauseEncodeQueue();\r
  90             setUIEncodeFinished();\r
  91             resetQueue();\r
  92             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
  93         }\r
  94 \r
  95         // Window Display Management\r
  96         private void setUIEncodeStarted()\r
  97         {\r
  98             if (InvokeRequired)\r
  99             {\r
 100                 BeginInvoke(new UpdateHandler(setUIEncodeStarted));\r
 101                 return;\r
 102             }\r
 103             btn_encode.Enabled = false;\r
 104             btn_pause.Visible = true;\r
 105         }\r
 106         private void setUIEncodeFinished()\r
 107         {\r
 108             if (InvokeRequired)\r
 109             {\r
 110                 BeginInvoke(new UpdateHandler(setUIEncodeFinished));\r
 111                 return;\r
 112             }\r
 113             btn_pause.Visible = false;\r
 114             btn_encode.Enabled = true;\r
 115         }\r
 116         private void resetQueue()\r
 117         {\r
 118             if (InvokeRequired)\r
 119             {\r
 120                 BeginInvoke(new UpdateHandler(resetQueue));\r
 121                 return;\r
 122             }\r
 123             btn_pause.Visible = false;\r
 124             btn_encode.Enabled = true;\r
 125 \r
 126             lbl_source.Text = "-";\r
 127             lbl_dest.Text = "-";\r
 128             lbl_vEnc.Text = "-";\r
 129             lbl_aEnc.Text = "-";\r
 130             lbl_title.Text = "-";\r
 131             lbl_chapt.Text = "-";\r
 132 \r
 133             lbl_encodesPending.Text = list_queue.Items.Count + " encode(s) pending";\r
 134         }\r
 135         private void redrawQueue()\r
 136         {\r
 137             if (InvokeRequired)\r
 138             {\r
 139                 BeginInvoke(new UpdateHandler(redrawQueue));\r
 140                 return;\r
 141             }\r
 142 \r
 143             list_queue.Items.Clear();\r
 144             List<Job> theQueue = queue.getQueue();\r
 145             foreach (Job queue_item in theQueue)\r
 146             {\r
 147                 string q_item = queue_item.Query;\r
 148                 Functions.QueryParser parsed = Functions.QueryParser.Parse(q_item);\r
 149 \r
 150                 // Get the DVD Title\r
 151                 string title = parsed.DVDTitle == 0 ? "Auto" : parsed.DVDTitle.ToString();\r
 152 \r
 153                 // Get the DVD Chapters\r
 154                 string chapters;\r
 155                 if (parsed.DVDChapterStart == 0)\r
 156                     chapters = "Auto";\r
 157                 else\r
 158                 {\r
 159                     chapters = parsed.DVDChapterStart.ToString();\r
 160                     if (parsed.DVDChapterFinish != 0)\r
 161                         chapters = chapters + " - " + parsed.DVDChapterFinish;\r
 162                 }\r
 163 \r
 164                 ListViewItem item = new ListViewItem();\r
 165                 item.Text = title; // Title\r
 166                 item.SubItems.Add(chapters); // Chapters\r
 167                 item.SubItems.Add(queue_item.Source); // Source\r
 168                 item.SubItems.Add(queue_item.Destination); // Destination\r
 169                 item.SubItems.Add(parsed.VideoEncoder); // Video\r
 170 \r
 171                 // Display The Audio Track Information\r
 172                 string audio = string.Empty;\r
 173                 foreach (Functions.AudioTrack track in parsed.AudioInformation)\r
 174                 {\r
 175                     if (audio != "")\r
 176                         audio += ", " + track.Encoder;\r
 177                     else\r
 178                         audio = track.Encoder;\r
 179                 }\r
 180                 item.SubItems.Add(audio); // Audio\r
 181 \r
 182                 list_queue.Items.Add(item);\r
 183             }\r
 184         }\r
 185         private void updateUIElements()\r
 186         {\r
 187             if (InvokeRequired)\r
 188             {\r
 189                 BeginInvoke(new UpdateHandler(updateUIElements));\r
 190                 return;\r
 191             }\r
 192 \r
 193             redrawQueue();\r
 194             lbl_encodesPending.Text = list_queue.Items.Count + " encode(s) pending";\r
 195         }\r
 196         private void setCurrentEncodeInformation()\r
 197         {\r
 198             try\r
 199             {\r
 200                 if (InvokeRequired)\r
 201                 {\r
 202                     BeginInvoke(new UpdateHandler(setCurrentEncodeInformation));\r
 203                 }\r
 204 \r
 205                 // found query is a global varible\r
 206                 Functions.QueryParser parsed = Functions.QueryParser.Parse(queue.lastQueueItem.Query);\r
 207                 lbl_source.Text = queue.lastQueueItem.Source;\r
 208                 lbl_dest.Text = queue.lastQueueItem.Destination;\r
 209 \r
 210                 lbl_title.Text = parsed.DVDTitle == 0 ? "Auto" : parsed.DVDTitle.ToString();\r
 211 \r
 212                 if (Equals(parsed.DVDChapterStart, 0))\r
 213                     lbl_chapt.Text = "Auto";\r
 214                 else\r
 215                 {\r
 216                     string chapters = parsed.DVDChapterStart.ToString();\r
 217                     if (parsed.DVDChapterFinish != 0)\r
 218                         chapters = chapters + " - " + parsed.DVDChapterFinish;\r
 219                     lbl_chapt.Text = chapters;\r
 220                 }\r
 221 \r
 222                 lbl_vEnc.Text = parsed.VideoEncoder;\r
 223 \r
 224                 // Display The Audio Track Information\r
 225                 string audio = string.Empty;\r
 226                 foreach (Functions.AudioTrack track in parsed.AudioInformation)\r
 227                 {\r
 228                     if (audio != "")\r
 229                         audio += ", " + track.Encoder;\r
 230                     else\r
 231                         audio = track.Encoder;\r
 232                 }\r
 233                 lbl_aEnc.Text = audio;\r
 234             }\r
 235             catch (Exception)\r
 236             {\r
 237                 // Do Nothing\r
 238             }\r
 239         }\r
 240         private void deleteSelectedItems()\r
 241         {\r
 242             // If there are selected items\r
 243             if (list_queue.SelectedIndices.Count > 0)\r
 244             {\r
 245                 // Save the selected indices to select them after the move\r
 246                 List<int> selectedIndices = new List<int>(list_queue.SelectedIndices.Count);\r
 247                 foreach (int selectedIndex in list_queue.SelectedIndices)\r
 248                     selectedIndices.Add(selectedIndex);\r
 249 \r
 250                 int firstSelectedIndex = selectedIndices[0];\r
 251 \r
 252                 // Reverse the list to delete the items from last to first (preserves indices)\r
 253                 selectedIndices.Reverse();\r
 254 \r
 255                 // Remove each selected item\r
 256                 foreach (int selectedIndex in selectedIndices)\r
 257                     queue.remove(selectedIndex);\r
 258 \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                 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                 updateUIElements();\r
 342 \r
 343                 // Keep the selected item(s) selected, now moved down one index\r
 344                 foreach (int selectedIndex in selectedIndices)\r
 345                     if (selectedIndex + 1 < list_queue.Items.Count) // Defensive programming: ensure index is good\r
 346                         list_queue.Items[selectedIndex + 1].Selected = true;\r
 347             }\r
 348 \r
 349             list_queue.Select(); // Activate the control to show the selected items\r
 350         }\r
 351 \r
 352         // Queue Import/Export Features\r
 353         private void mnu_batch_Click(object sender, EventArgs e)\r
 354         {\r
 355             SaveFile.FileName = "";\r
 356             SaveFile.Filter = "Batch|.bat";\r
 357             SaveFile.ShowDialog();\r
 358             if (SaveFile.FileName != String.Empty)\r
 359                 queue.writeBatchScript(SaveFile.FileName);\r
 360         }\r
 361         private void mnu_export_Click(object sender, EventArgs e)\r
 362         {\r
 363             SaveFile.FileName = "";\r
 364             SaveFile.Filter = "HandBrake Queue|*.queue";\r
 365             SaveFile.ShowDialog();\r
 366             if (SaveFile.FileName != String.Empty)\r
 367                 queue.updateQueueRecoveryFile(SaveFile.FileName);\r
 368         }\r
 369         private void mnu_import_Click(object sender, EventArgs e)\r
 370         {\r
 371             OpenFile.FileName = "";\r
 372             OpenFile.ShowDialog();\r
 373             if (OpenFile.FileName != String.Empty)\r
 374                 queue.recoverQueue(OpenFile.FileName);\r
 375             updateUIElements();\r
 376         }\r
 377         private void mnu_readd_Click(object sender, EventArgs e)\r
 378         {\r
 379             if (queue.lastQueueItem != null)\r
 380             {\r
 381                 queue.add(queue.lastQueueItem.Query, queue.lastQueueItem.Source, queue.lastQueueItem.Destination);\r
 382                 updateUIElements();\r
 383             }\r
 384         }\r
 385 \r
 386         // Hide's the window when the user tries to "x" out of the window instead of closing it.\r
 387         protected override void OnClosing(CancelEventArgs e)\r
 388         {\r
 389             e.Cancel = true;\r
 390             this.Hide();\r
 391             base.OnClosing(e);\r
 392         }\r
 393 \r
 394     }\r
 395 }\r