[gimp] app: remove the "grid_dialog" member from GimpDisplayShell

[Michael Natterer <mitch src gnome org>]

commit 3f1104b62607665b51fe85b03386d4a9472c4d0e
Author: Michael Natterer <mitch gimp org>
Date:   Sat Sep 24 14:49:43 2016 +0200

    app: remove the "grid_dialog" member from GimpDisplayShell
    
    and attach the dialog to the image, just like other dialogs.

 app/actions/image-commands.c   |   29 ++++++++++++++---------------
 app/display/gimpdisplayshell.c |    6 ------
 app/display/gimpdisplayshell.h |    1 -
 3 files changed, 14 insertions(+), 22 deletions(-)
---
diff --git a/app/actions/image-commands.c b/app/actions/image-commands.c
index 5294c4a..297bf1a 100644
--- a/app/actions/image-commands.c
+++ b/app/actions/image-commands.c
@@ -833,30 +833,29 @@ void
 image_configure_grid_cmd_callback (GtkAction *action,
                                    gpointer   data)
 {
-  GimpDisplay      *display;
-  GimpImage        *image;
-  GimpDisplayShell *shell;
+  GimpDisplay *display;
+  GimpImage   *image;
+  GtkWidget   *dialog;
   return_if_no_display (display, data);
 
   image = gimp_display_get_image (display);
-  shell = gimp_display_get_shell (display);
 
-  if (! shell->grid_dialog)
+#define GRID_DIALOG_KEY "gimp-grid-dialog"
+
+  dialog = dialogs_get_dialog (G_OBJECT (image), GRID_DIALOG_KEY);
+
+  if (! dialog)
     {
-      shell->grid_dialog = grid_dialog_new (image,
-                                            action_data_get_context (data),
-                                            GTK_WIDGET (shell));
+      GimpDisplayShell *shell = gimp_display_get_shell (display);
 
-      gtk_window_set_transient_for (GTK_WINDOW (shell->grid_dialog),
-                                    GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (shell))));
-      gtk_window_set_destroy_with_parent (GTK_WINDOW (shell->grid_dialog),
-                                          TRUE);
+      dialog = grid_dialog_new (image,
+                                action_data_get_context (data),
+                                GTK_WIDGET (shell));
 
-      g_object_add_weak_pointer (G_OBJECT (shell->grid_dialog),
-                                 (gpointer) &shell->grid_dialog);
+      dialogs_attach_dialog (G_OBJECT (image), GRID_DIALOG_KEY, dialog);
     }
 
-  gtk_window_present (GTK_WINDOW (shell->grid_dialog));
+  gtk_window_present (GTK_WINDOW (dialog));
 }
 
 void
diff --git a/app/display/gimpdisplayshell.c b/app/display/gimpdisplayshell.c
index fba145b..17f2fdd 100644
--- a/app/display/gimpdisplayshell.c
+++ b/app/display/gimpdisplayshell.c
@@ -868,12 +868,6 @@ gimp_display_shell_dispose (GObject *object)
       shell->nav_popup = NULL;
     }
 
-  if (shell->grid_dialog)
-    {
-      gtk_widget_destroy (shell->grid_dialog);
-      shell->grid_dialog = NULL;
-    }
-
   if (shell->blink_timeout_id)
     {
       g_source_remove (shell->blink_timeout_id);
diff --git a/app/display/gimpdisplayshell.h b/app/display/gimpdisplayshell.h
index 951663b..1407fa8 100644
--- a/app/display/gimpdisplayshell.h
+++ b/app/display/gimpdisplayshell.h
@@ -148,7 +148,6 @@ struct _GimpDisplayShell
   GtkWidget         *scale_dialog;     /*  scale (zoom) dialog                */
   GtkWidget         *rotate_dialog;    /*  rotate dialog                      */
   GtkWidget         *nav_popup;        /*  navigation popup                   */
-  GtkWidget         *grid_dialog;      /*  grid configuration dialog          */
 
   GimpColorConfig   *color_config;     /*  color management settings          */
   gboolean           color_config_set; /*  settings changed from defaults     */