Index: trunk/src/libcschem/extobj.h
===================================================================
--- trunk/src/libcschem/extobj.h	(revision 11143)
+++ trunk/src/libcschem/extobj.h	(revision 11144)
@@ -39,9 +39,36 @@
 void csch_extobj_impl_unreg(const csch_extobj_impl_t *impl);
 
 
+/* Force re-reder the object (if it is an ext-object); safe to call on any cgrp */
+RND_INLINE void csch_extobj_update(csch_cgrp_t *grp);
 
+/* let extobj decide if an update is needed (and do the update); safe to call
+   on any cgrp */
+RND_INLINE void csch_extrobj_attr_edit_pre(csch_cgrp_t *grp, const char *key);
+RND_INLINE void csch_extrobj_attr_edit_post(csch_cgrp_t *grp, const char *key);
+
+
 /* internal, do not call */
 void csch_extobj_init(void);
 void csch_extobj_uninit(void);
 const csch_extobj_impl_t *csch_extobj_lookup(const char *name);
 
+/*** implementation ***/
+RND_INLINE void csch_extobj_update(csch_cgrp_t *grp)
+{
+	if ((grp->extobj != NULL) && (grp->extobj->update != NULL))
+		grp->extobj->update(grp);
+}
+
+RND_INLINE void csch_extrobj_attr_edit_pre(csch_cgrp_t *grp, const char *key)
+{
+	if ((grp->extobj != NULL) && (grp->extobj->attr_edit_pre != NULL))
+		grp->extobj->attr_edit_pre(grp, key);
+}
+
+RND_INLINE void csch_extrobj_attr_edit_post(csch_cgrp_t *grp, const char *key)
+{
+	if ((grp->extobj != NULL) && (grp->extobj->attr_edit_post != NULL))
+		grp->extobj->attr_edit_post(grp, key);
+}
+