src/GnomeSubtitles/Core/Command/TranslatorCommand.cs

   1 /*
   2  * This file is part of Gnome Subtitles.
   3  * Copyright (C) 2007-2008 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.Edit;
  21 using Mono.Unix;
  22 using SubLib;
  23 using SubLib.Core;
  24 using SubLib.Exceptions;
  25 using System;
  26 using GnomeSubtitles.Dialog;
  27 using GnomeSubtitles.Dialog.Unmanaged;
  28 using Gtk;
  29
  30 namespace GnomeSubtitles.Core.Command {
  31
  32 public class TranslatorCommand : FixedSingleSelectionCommand {
  33         private string translatedText; // translated string
  34         private string formerText; // former text replaced by translation
  35         private bool leftToRight; // direction of translating
  36         private static string description = Catalog.GetString("Translating text using Google Translate.");
  37
  38         public TranslatorCommand (bool leftToRight) : base(description, false, false) {
  39                 this.translatedText = String.Empty;
  40                 this.formerText = String.Empty;
  41                 this.leftToRight = leftToRight;
  42
  43                 SetStopsGrouping(true);
  44         }
  45
  46         /* Public members */
  47
  48         public override bool CanGroupWith (Command command) {
  49                 return default(bool);
  50         }
  51
  52         public override Command MergeWith (Command command) {
  53                 return this;
  54         }
  55
  56         protected override bool ChangeValues () {
  57                 if (Base.Ui.View.Selection.Count != 1)
  58                         return false;
  59
  60                 if (leftToRight)
  61                         formerText = Base.Ui.View.Selection.Subtitle.Translation.Get();
  62                 else
  63                         formerText = Base.Ui.View.Selection.Subtitle.Text.Get();
  64
  65                 try
  66                 {
  67                         if (!Base.SpellLanguages.HasActiveTextLanguage)
  68                         {
  69                                 Base.Dialogs.Get(typeof(SetTextLanguageDialog)).Show();
  70                                 if (!Base.SpellLanguages.HasActiveTextLanguage)
  71                                         return false;
  72                         }
  73                         if (!Base.SpellLanguages.HasActiveTranslationLanguage)
  74                         {
  75                                 Base.Dialogs.Get(typeof(SetTranslationLanguageDialog)).Show();
  76                                 if (!Base.SpellLanguages.HasActiveTranslationLanguage)
  77                                         return false;
  78                         }
  79
  80                         string translated;
  81                         if (leftToRight)
  82                                 translated = Translator.TranslateText(Base.Ui.View.Selection.Subtitle.Text.Get(), /*"en_US", "de_DE",*/ Base.SpellLanguages.ActiveTextLanguage.ID, Base.SpellLanguages.ActiveTranslationLanguage.ID, Translator.TIMEOUT);
  83                         else
  84                                 translated = Translator.TranslateText(Base.Ui.View.Selection.Subtitle.Translation.Get(), Base.SpellLanguages.ActiveTextLanguage.ID, Base.SpellLanguages.ActiveTranslationLanguage.ID, Translator.TIMEOUT);
  85
  86                         translatedText = translated;
  87                         if (leftToRight)
  88                                 Base.Ui.View.Selection.Subtitle.Translation.Set(translated);
  89                         else
  90                                 Base.Ui.View.Selection.Subtitle.Text.Set(translated);
  91
  92                         return true;
  93                 }
  94                 catch (TranslatorException e)
  95                 {
  96                         Gtk.MessageDialog md = new Gtk.MessageDialog(Base.Ui.Window,
  97                                   DialogFlags.DestroyWithParent,
  98                                   MessageType.Error,
  99                                   ButtonsType.Close, e.Message);
 100                         md.Run();
 101                         md.Destroy();
 102
 103                         return false;
 104                 }
 105         }
 106
 107         public override void Undo () {
 108                 if (leftToRight)
 109                         Base.Ui.View.Selection.Subtitle.Translation.Set(formerText);
 110                 else
 111                         Base.Ui.View.Selection.Subtitle.Text.Set(formerText);
 112
 113                 PostProcess();
 114         }
 115
 116         public override void Redo () {
 117                 if (leftToRight)
 118                         Base.Ui.View.Selection.Subtitle.Translation.Set(translatedText);
 119                 else
 120                         Base.Ui.View.Selection.Subtitle.Text.Set(translatedText);
 121
 122                 PostProcess();
 123         }
 124
 125         /* Protected members */
 126
 127         protected override void PostProcess () {
 128                 Base.Ui.View.Selection.Reselect();
 129                 Base.Ui.View.Refresh();
 130
 131         }
 132
 133         protected bool GetLeftToRight () {
 134                 return leftToRight;
 135         }
 136
 137         protected string GetTranslatedText () {
 138                 return translatedText;
 139         }
 140
 141         protected string GetFormerText () {
 142                 return formerText;
 143         }
 144
 145 }
 146
 147 }