[five-or-more] Make theme names translatable

[Robert Roth <robertroth src gnome org>]

commit 08b0b47a60db6c94e8203e9dfc66567ec6cd56bd
Author: Ruxandra Simion <ruxandra simion93 gmail com>
Date:   Sun Feb 25 01:32:33 2018 +0200

    Make theme names translatable
    
    https://bugzilla.gnome.org/show_bug.cgi?id=672675

 data/Makefile.am           |    7 ++++---
 data/translatable_themes.h |    9 +++++++++
 po/POTFILES.in             |    1 +
 src/games-file-list.c      |    3 ++-
 4 files changed, 16 insertions(+), 4 deletions(-)
---
diff --git a/data/Makefile.am b/data/Makefile.am
index caf95bc..5aaed20 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -29,12 +29,13 @@ appstream_XML = $(appstream_in_files:.xml.in=.xml)
 @INTLTOOL_XML_RULE@
 
 EXTRA_DIST =                   \
-       $(theme_DATA)           \
        $(appstream_in_files)   \
        $(desktop_in_files)     \
        $(gsettings_SCHEMAS)    \
-       $(man_MANS)     \
-       $(ui_DATA)
+       $(man_MANS)             \
+       $(ui_DATA)              \
+       $(theme_DATA)           \
+       translatable_themes.h
 
 CLEANFILES = \
        $(appstream_XML)        \
diff --git a/data/translatable_themes.h b/data/translatable_themes.h
new file mode 100644
index 0000000..eafed46
--- /dev/null
+++ b/data/translatable_themes.h
@@ -0,0 +1,9 @@
+/*
+ * Translatable strings file.
+ * Add this file to your project's POTFILES.in.
+ * DO NOT compile it as part of your application.
+ */
+NC_("themes", "balls")
+NC_("themes", "dots")
+NC_("themes", "gumball")
+NC_("themes", "shapes")
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 9edc91f..9e40b03 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -7,5 +7,6 @@ data/five-or-more.desktop.in
 [type: gettext/glade]data/five-or-more.ui
 [type: gettext/glade]data/menu.ui
 data/org.gnome.five-or-more.gschema.xml
+data/translatable_themes.h
 src/five-or-more.c
 src/games-scores-dialog.c
diff --git a/src/games-file-list.c b/src/games-file-list.c
index 7162bbe..633e9c1 100644
--- a/src/games-file-list.c
+++ b/src/games-file-list.c
@@ -314,7 +314,8 @@ games_file_list_create_widget (GamesFileList * filelist,
       }
     }
 
-    gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget), visible);
+    gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (widget),
+                                    g_dpgettext2 (NULL, "themes", visible));
     if (selection && (!strcmp (string, selection))) {
       gtk_combo_box_set_active (widget, itemno);
       found = TRUE;