[retro-gtk] retro-core: Add missing property getters

[Adrien Plazas <aplazas src gnome org>]

commit 8ca26f4d986ddbb326d8c7fb43654ea59b7f16d1
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Mon Jan 20 22:21:18 2020 +0500

    retro-core: Add missing property getters
    
    'game-loaded', 'is-initiated', 'support-no-game' were marked as readable,
    but didn't have the corresponding logic in get_property().

 retro-gtk/retro-core.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/retro-gtk/retro-core.c b/retro-gtk/retro-core.c
index 8b8d9f4..e612d91 100644
--- a/retro-gtk/retro-core.c
+++ b/retro-gtk/retro-core.c
@@ -222,6 +222,18 @@ retro_core_get_property (GObject    *object,
   case PROP_SAVE_DIRECTORY:
     g_value_set_string (value, retro_core_get_save_directory (self));
 
+    break;
+  case PROP_IS_INITIATED:
+    g_value_set_boolean (value, retro_core_get_is_initiated (self));
+
+    break;
+  case PROP_GAME_LOADED:
+    g_value_set_boolean (value, retro_core_get_game_loaded (self));
+
+    break;
+  case PROP_SUPPORT_NO_GAME:
+    g_value_set_boolean (value, retro_core_get_support_no_game (self));
+
     break;
   case PROP_FRAMES_PER_SECOND:
     g_value_set_double (value, retro_core_get_frames_per_second (self));