Copy values across to new part.

2002-02-26  Not Zed  <NotZed@Ximian.com>

        * filter-filter.c (option_activate): Copy values across to new
        part.

        * filter-rule.c (option_activate): copy values across to new part,
        if they are compatible.

        * filter-element.c (filter_element_copy_value): New function to
        copy values (where they can be) from one filter element to another.

        * filter-part.c (filter_part_copy_values): New function to copy
        values of a filter part.  #1359.

svn path=/trunk/; revision=15841

1 files changed, 30 insertions, 0 deletions

diff --git a/filter/filter-part.c b/filter/filter-part.c
index 15e78b77b8..e92c42aafb 100644
--- a/filter/filter-part.c
+++ b/filter/filter-part.c
@@ -273,6 +273,36 @@ filter_part_clone (FilterPart *fp)
 	return new;
 }
 
+/* only copies values of matching parts in the right order */
+void
+filter_part_copy_values (FilterPart *dst, FilterPart *src)
+{
+	GList *dstl, *srcl, *dstt;
+	FilterElement *de, *se;
+
+	/* NOTE: we go backwards, it just works better that way */
+
+	/* for each source type, search the dest type for
+	   a matching type in the same order */
+	srcl = g_list_last(src->elements);
+	dstl = g_list_last(dst->elements);
+	while (srcl && dstl) {
+		se = srcl->data;
+		dstt = dstl;
+		while (dstt) {
+			de = dstt->data;
+			if (((GtkObject *)de)->klass == ((GtkObject *)se)->klass) {
+				filter_element_copy_value(de, se);
+				dstl = dstt->prev;
+				break;
+			}
+			dstt = dstt->prev;
+		}
+
+		srcl = srcl->prev;
+	}
+}
+
 FilterElement *
 filter_part_find_element (FilterPart *ff, const char *name)
 {