[retro-gtk/wip/aplazas/controller] core: Make 'filename' prop read-only

[Adrien Plazas <aplazas src gnome org>]

commit 56a8c13605e3bcb76fe141ecf7e5357ea0e7ce43
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Wed Oct 11 20:04:00 2017 +0200

    core: Make 'filename' prop read-only
    
    It can't be changed after construction.

 retro-gtk/retro-core.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)
---
diff --git a/retro-gtk/retro-core.c b/retro-gtk/retro-core.c
index fed0d9e..0007ad8 100644
--- a/retro-gtk/retro-core.c
+++ b/retro-gtk/retro-core.c
@@ -175,10 +175,6 @@ retro_core_get_property (GObject    *object,
     g_value_set_uint (value, retro_core_get_api_version (self));
 
     break;
-  case PROP_FILENAME:
-    g_value_set_string (value, retro_core_get_filename (self));
-
-    break;
   case PROP_SYSTEM_DIRECTORY:
     g_value_set_string (value, retro_core_get_system_directory (self));
 
@@ -294,7 +290,7 @@ retro_core_class_init (RetroCoreClass *klass)
                          "Filename",
                          "The module filename",
                          NULL,
-                         G_PARAM_READWRITE |
+                         G_PARAM_READABLE |
                          G_PARAM_STATIC_NAME |
                          G_PARAM_STATIC_NICK |
                          G_PARAM_STATIC_BLURB);