[gnome-subtitles] Fix #125 UI in English, expected translated

[Pedro Castro <pcastro src gnome org>]

commit 6717a9c7412479ad8d3026c3de166263e823fb96
Author: Pedro Castro <pedro gnomesubtitles org>
Date:   Fri May 24 18:46:04 2019 +0100

    Fix #125 UI in English, expected translated

 src/GnomeSubtitles/Ui/MainUi.cs | 39 ++++++++++++++++++++++++++++++++-------
 1 file changed, 32 insertions(+), 7 deletions(-)
---
diff --git a/src/GnomeSubtitles/Ui/MainUi.cs b/src/GnomeSubtitles/Ui/MainUi.cs
index 3bd5f9a..1801eab 100644
--- a/src/GnomeSubtitles/Ui/MainUi.cs
+++ b/src/GnomeSubtitles/Ui/MainUi.cs
@@ -29,6 +29,7 @@ using SubLib.Exceptions;
 using SubLib.Util;
 using System;
 using System.IO;
+using System.Reflection;
 using System.Text;
 
 namespace GnomeSubtitles.Ui {
@@ -44,14 +45,14 @@ public class MainUi {
        private Status status = null;
 
        /* Constant strings */
-       private const string uiFilename = "MainWindow.ui";
-       private const string iconFilename = "gnome-subtitles.svg";
+       private const string uiResourceName = "MainWindow.ui";
+       private const string iconResourceName = "gnome-subtitles.svg";
 
        public MainUi (EventHandlers handlers) {
-               builder = new Builder(uiFilename, Base.ExecutionContext.TranslationDomain);
-
+               builder = ReadUIContent(uiResourceName, Base.ExecutionContext.TranslationDomain);
+               
                window = builder.GetObject("window") as Window;
-               window.Icon = new Gdk.Pixbuf(null, iconFilename);
+               window.Icon = new Gdk.Pixbuf(null, iconResourceName);
                window.SetDefaultSize(Base.Config.ViewWindowWidth, Base.Config.ViewWindowHeight);
 
                video = new Video();
@@ -97,7 +98,7 @@ public class MainUi {
     /* Public Methods */
 
        public static Widget GetWidget (string name) {
-                       return builder.GetObject(name) as Widget;
+               return builder.GetObject(name) as Widget;
        }
 
     /// <summary>Starts the GUI</summary>
@@ -448,7 +449,7 @@ public class MainUi {
                return true;
        }
 
-       //FIXME use a header bar to show the title and subtitle
+       //TODO use a header bar to show the title and subtitle
        private void UpdateTitleModificationStatus (bool showFilename, bool modified) {
                if (showFilename) {
                        window.Title = (modified ? "*" : "") + Base.Document.TextFile.Filename;
@@ -491,6 +492,30 @@ public class MainUi {
 
                return file;
        }
+       
+       private Builder ReadUIContent (string uiResourceName, string translationDomain) {
+               string content;
+       
+               using (Stream stream = 
Assembly.GetExecutingAssembly().GetManifestResourceStream(uiResourceName)) {
+                       using (StreamReader reader = new StreamReader(stream, Encoding.UTF8)) {
+                               content = reader.ReadToEnd();
+                       }
+               }
+               
+               if (String.IsNullOrEmpty(content)) {
+                       throw new Exception("Unable to read UI content from resource " + uiResourceName);
+               }
+
+               Builder builder = new Builder();
+               builder.TranslationDomain = translationDomain;
+               builder.AddFromString(content);
+
+               //Note: this doesn't work anymore. The translation domain needs to be set *before* loading 
the UI, but
+               //this gtk-sharp method is doing it *afterwards*.
+               //builder = new Builder(uiResourceName, Base.ExecutionContext.TranslationDomain);
+
+               return builder;
+       }
 
 
        /* Event members */