src/GnomeSubtitles/Core/Command/ChangeFrameRateCommand.cs

   1 /*
   2  * This file is part of Gnome Subtitles.
   3  * Copyright (C) 2006-2010 Pedro Castro
   4  *
   5  * Gnome Subtitles is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Gnome Subtitles is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  */
  19
  20 using GnomeSubtitles.Ui.View;
  21 using Mono.Unix;
  22 using SubLib.Core.Timing;
  23
  24 namespace GnomeSubtitles.Core.Command {
  25
  26 public abstract class ChangeFrameRateCommand : FixedMultipleSelectionCommand {
  27         private float storedFrameRate = 0;
  28
  29         public ChangeFrameRateCommand (string description, float frameRate) : base(description, false, SelectionIntended.All, null, true) {
  30                 this.storedFrameRate = frameRate;
  31         }
  32
  33         protected override bool ChangeValues () {
  34                 float previousFrameRate = GetFrameRate();
  35                 SetFrameRate(storedFrameRate);
  36                 storedFrameRate = previousFrameRate;
  37
  38                 UpdateMenuItem();
  39                 return true;
  40         }
  41
  42         protected abstract float GetFrameRate ();
  43         protected abstract void SetFrameRate (float frameRate);
  44         protected abstract void UpdateMenuItem ();
  45 }
  46
  47 public class ChangeInputFrameRateCommand : ChangeFrameRateCommand {
  48         private static string description = Catalog.GetString("Changing Input Frame Rate");
  49
  50         public ChangeInputFrameRateCommand (float frameRate) : base(description, frameRate) {
  51         }
  52
  53         protected override float GetFrameRate () {
  54                 return Base.Document.Subtitles.Properties.OriginalFrameRate;
  55         }
  56
  57         protected override void SetFrameRate (float frameRate) {
  58                 FrameRateOperator frameRateOp = new FrameRateOperator(Base.Document.Subtitles);
  59                 frameRateOp.ChangeOriginal(frameRate);
  60         }
  61
  62         protected override void UpdateMenuItem () {
  63                 Base.Ui.Menus.UpdateActiveInputFrameRateMenuItem(true);
  64         }
  65 }
  66
  67 public class ChangeVideoFrameRateCommand : ChangeFrameRateCommand {
  68         private static string description = Catalog.GetString("Changing Video Frame Rate");
  69
  70         public ChangeVideoFrameRateCommand (float frameRate) : base(description, frameRate) {
  71         }
  72
  73         protected override float GetFrameRate () {
  74                 return Base.Document.Subtitles.Properties.CurrentFrameRate;
  75         }
  76
  77         protected override void SetFrameRate (float frameRate) {
  78                 FrameRateOperator frameRateOp = new FrameRateOperator(Base.Document.Subtitles);
  79                 frameRateOp.ChangeCurrent(frameRate);
  80         }
  81
  82         protected override void UpdateMenuItem () {
  83                 Base.Ui.Menus.UpdateActiveVideoFrameRateMenuItem();
  84         }
  85 }
  86
  87 }