[gimp] app: implement get_memsize() and get_checksum() in GimpMybrush

[Michael Natterer <mitch src gnome org>]

commit f7962c27e1dfc90426d37044427c4ebc0de432b9
Author: Michael Natterer <mitch gimp org>
Date:   Sun Mar 20 21:16:04 2016 +0100

    app: implement get_memsize() and get_checksum() in GimpMybrush

 app/core/gimpmybrush.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/app/core/gimpmybrush.c b/app/core/gimpmybrush.c
index c2a96f2..888a4ce 100644
--- a/app/core/gimpmybrush.c
+++ b/app/core/gimpmybrush.c
@@ -25,6 +25,7 @@
 
 #include "core-types.h"
 
+#include "gimp-memsize.h"
 #include "gimpmybrush.h"
 #include "gimpmybrush-load.h"
 #include "gimpmybrush-private.h"
@@ -155,6 +156,8 @@ gimp_mybrush_get_memsize (GimpObject *object,
   GimpMybrush *brush   = GIMP_MYBRUSH (object);
   gint64       memsize = 0;
 
+  memsize += gimp_string_get_memsize (brush->priv->brush_json);
+
   return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
                                                                   gui_size);
 }
@@ -187,6 +190,19 @@ gimp_mybrush_get_checksum (GimpTagged *tagged)
   GimpMybrush *brush           = GIMP_MYBRUSH (tagged);
   gchar       *checksum_string = NULL;
 
+  if (brush->priv->brush_json)
+    {
+      GChecksum *checksum = g_checksum_new (G_CHECKSUM_MD5);
+
+      g_checksum_update (checksum,
+                         (const guchar *) brush->priv->brush_json,
+                         strlen (brush->priv->brush_json));
+
+      checksum_string = g_strdup (g_checksum_get_string (checksum));
+
+      g_checksum_free (checksum);
+    }
+
   return checksum_string;
 }