l10n: Setup locales (#36)

Author: ryonakano

meson.build

@@ -8,8 +8,18 @@ i18n = import('i18n')
 
 add_global_arguments('-DGETTEXT_PACKAGE="@0@"'.format (meson.project_name()), language:'c')
 
+config_data = configuration_data()
+config_data.set_quoted('LOCALEDIR', get_option('prefix') / get_option('localedir'))
+config_data.set_quoted('GETTEXT_PACKAGE', meson.project_name())
+config_file = configure_file(
+    input: 'src/Config.vala.in',
+    output: '@BASENAME@',
+    configuration: config_data
+)
+
 executable(
     meson.project_name(),
+    config_file,
     'src/Application.vala',
     'src/MainWindow.vala',
     'src/IndividualView.vala',

src/Application.vala

@@ -64,6 +64,11 @@ public class Friends.Application : Gtk.Application {
     }
 
     public static int main (string[] args) {
+        Intl.setlocale (LocaleCategory.ALL, "");
+        Intl.bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
+        Intl.bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+        Intl.textdomain (GETTEXT_PACKAGE);
+
         var app = new Application ();
         return app.run (args);
     }

src/Config.vala.in

@@ -0,0 +1,2 @@
+public const string GETTEXT_PACKAGE = @GETTEXT_PACKAGE@;
+public const string LOCALEDIR = @LOCALEDIR@;