[gimp] app: implement GimpConfig::reset() in GimpPDBContext

[Michael Natterer <mitch src gnome org>]

commit dac5493132ef14be4d39ce6f85ae285b5c716cb5
Author: Michael Natterer <mitch gimp org>
Date:   Mon Nov 9 03:20:45 2015 +0100

    app: implement GimpConfig::reset() in GimpPDBContext
    
    and reset its paint and stroke options.

 app/pdb/gimppdbcontext.c |   46 +++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 45 insertions(+), 1 deletions(-)
---
diff --git a/app/pdb/gimppdbcontext.c b/app/pdb/gimppdbcontext.c
index d8967c0..d7aca1e 100644
--- a/app/pdb/gimppdbcontext.c
+++ b/app/pdb/gimppdbcontext.c
@@ -58,6 +58,8 @@ enum
 };
 
 
+static void   gimp_pdb_context_iface_init   (GimpConfigInterface *iface);
+
 static void   gimp_pdb_context_constructed  (GObject      *object);
 static void   gimp_pdb_context_finalize     (GObject      *object);
 static void   gimp_pdb_context_set_property (GObject      *object,
@@ -69,11 +71,17 @@ static void   gimp_pdb_context_get_property (GObject      *object,
                                              GValue       *value,
                                              GParamSpec   *pspec);
 
+static void   gimp_pdb_context_reset        (GimpConfig   *config);
+
 
-G_DEFINE_TYPE (GimpPDBContext, gimp_pdb_context, GIMP_TYPE_CONTEXT)
+G_DEFINE_TYPE_WITH_CODE (GimpPDBContext, gimp_pdb_context, GIMP_TYPE_CONTEXT,
+                         G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONFIG,
+                                                gimp_pdb_context_iface_init))
 
 #define parent_class gimp_pdb_context_parent_class
 
+static GimpConfigInterface *parent_config_iface = NULL;
+
 
 static void
 gimp_pdb_context_class_init (GimpPDBContextClass *klass)
@@ -147,6 +155,17 @@ gimp_pdb_context_class_init (GimpPDBContextClass *klass)
 }
 
 static void
+gimp_pdb_context_iface_init (GimpConfigInterface *iface)
+{
+  parent_config_iface = g_type_interface_peek_parent (iface);
+
+  if (! parent_config_iface)
+    parent_config_iface = g_type_default_interface_peek (GIMP_TYPE_CONFIG);
+
+  iface->reset = gimp_pdb_context_reset;
+}
+
+static void
 gimp_pdb_context_init (GimpPDBContext *context)
 {
   context->paint_options_list = gimp_list_new (GIMP_TYPE_PAINT_OPTIONS,
@@ -341,6 +360,31 @@ gimp_pdb_context_get_property (GObject    *object,
     }
 }
 
+static void
+gimp_pdb_context_reset (GimpConfig *config)
+{
+  GimpPDBContext *context = GIMP_PDB_CONTEXT (config);
+  GList          *list;
+
+  for (list = GIMP_LIST (context->paint_options_list)->list;
+       list;
+       list = g_list_next (list))
+    {
+      gimp_config_reset (list->data);
+    }
+
+  gimp_config_reset (GIMP_CONFIG (context->stroke_options));
+
+  /* preserve the traditional PDB default */
+  g_object_set (context->stroke_options,
+                "method", GIMP_STROKE_PAINT_METHOD,
+                NULL);
+
+  parent_config_iface->reset (config);
+
+  g_object_notify (G_OBJECT (context), "antialias");
+}
+
 GimpContext *
 gimp_pdb_context_new (Gimp        *gimp,
                       GimpContext *parent,