[gimp] app: correctly set the initial sensitivity in the layer options dialog

[Michael Natterer <mitch src gnome org>]

commit ac36497c2a07442f92964e22db1b68e1f9696a0b
Author: Michael Natterer <mitch gimp org>
Date:   Mon Feb 20 00:54:52 2017 +0100

    app: correctly set the initial sensitivity in the layer options dialog

 app/dialogs/layer-options-dialog.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/app/dialogs/layer-options-dialog.c b/app/dialogs/layer-options-dialog.c
index 857b377..c69c33b 100644
--- a/app/dialogs/layer-options-dialog.c
+++ b/app/dialogs/layer-options-dialog.c
@@ -228,6 +228,9 @@ layer_options_dialog_new (GimpImage                *image,
                               G_CALLBACK (gimp_int_combo_box_get_active),
                               &private->composite_mode);
 
+  /*  set the sensitivity of above 3 menus  */
+  layer_options_dialog_mode_notify (private->mode_box, NULL, private);
+
   adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (private->opacity, 0.0, 100.0,
                                                    1.0, 10.0, 0.0));
   scale = gimp_spin_scale_new (adjustment, NULL, 1);