2006-11-21 Akira TAGOH <at@gclab.org>

	* hieroglyph/hglist.c (hg_list_get_iter_previous): new function.
	(hg_list_get_iter_last): new function.

4 files changed, 56 insertions, 17 deletions

diff --git a/ChangeLog b/ChangeLog
index 74b4165..4366dbb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-11-21  Akira TAGOH  <at@gclab.org>
+
+	* hieroglyph/hglist.c (hg_list_get_iter_previous): new function.
+	(hg_list_get_iter_last): new function.
+
 2006-11-13  Akira TAGOH  <at@gclab.org>
 
 	* hieroglyph/operator.c (_hg_operator_op_arc): fix a typo.
diff --git a/hieroglyph/hglist.c b/hieroglyph/hglist.c
index 594b6f3..9b97bba 100644
--- a/hieroglyph/hglist.c
+++ b/hieroglyph/hglist.c
@@ -556,6 +556,36 @@ hg_list_get_iter_next(HgList     *list,
 	return TRUE;
 }
 
+gboolean
+hg_list_get_iter_previous(HgList     *list,
+			  HgListIter  iter)
+{
+	g_return_val_if_fail (list != NULL, FALSE);
+	g_return_val_if_fail (iter != NULL, FALSE);
+	g_return_val_if_fail (iter->top == list, FALSE);
+	g_return_val_if_fail (iter->last == hg_list_previous(list), FALSE);
+
+	iter->current = hg_list_previous(iter->current);
+	if (iter->current == iter->last)
+		return FALSE;
+
+	return TRUE;
+}
+
+gboolean
+hg_list_get_iter_last(HgList     *list,
+		      HgListIter  iter)
+{
+	g_return_val_if_fail (list != NULL, FALSE);
+	g_return_val_if_fail (iter != NULL, FALSE);
+	g_return_val_if_fail (iter->top == list, FALSE);
+	g_return_val_if_fail (iter->last == hg_list_previous(list), FALSE);
+
+	iter->current = hg_list_last(iter->current);
+
+	return TRUE;
+}
+
 gpointer
 hg_list_iter_get_data(HgListIter iter)
 {
diff --git a/hieroglyph/hglist.h b/hieroglyph/hglist.h
index 4d28d4a..c452aef 100644
--- a/hieroglyph/hglist.h
+++ b/hieroglyph/hglist.h
@@ -49,22 +49,26 @@ HgList *hg_list_last          (HgList    *list);
 
 #define hg_list_iter_free	hg_mem_free
 
-HgListIter hg_list_iter_new        (HgList        *list);
-gboolean   hg_list_get_iter_first  (HgList        *list,
-				    HgListIter     iter);
-gboolean   hg_list_get_iter_next   (HgList        *list,
-				    HgListIter     iter);
-HgListIter hg_list_find_iter       (HgList        *list,
-				    gconstpointer  data);
-HgListIter hg_list_find_iter_custom(HgList        *list,
-				    gconstpointer  data,
-				    HgCompareFunc  func);
-gpointer   hg_list_iter_get_data   (HgListIter     iter);
-void       hg_list_iter_set_data   (HgListIter     iter,
-				    gpointer       data);
-void       hg_list_iter_set_object (HgListIter     iter,
-				    HgObject      *hobject);
-HgList    *hg_list_iter_delete_link(HgListIter     iter);
+HgListIter hg_list_iter_new         (HgList        *list);
+gboolean   hg_list_get_iter_first   (HgList        *list,
+				     HgListIter     iter);
+gboolean   hg_list_get_iter_next    (HgList        *list,
+				     HgListIter     iter);
+gboolean   hg_list_get_iter_previous(HgList        *list,
+				     HgListIter     iter);
+gboolean   hg_list_get_iter_last    (HgList        *list,
+				     HgListIter     iter);
+HgListIter hg_list_find_iter        (HgList        *list,
+				     gconstpointer  data);
+HgListIter hg_list_find_iter_custom (HgList        *list,
+				     gconstpointer  data,
+				     HgCompareFunc  func);
+gpointer   hg_list_iter_get_data    (HgListIter     iter);
+void       hg_list_iter_set_data    (HgListIter     iter,
+				     gpointer       data);
+void       hg_list_iter_set_object  (HgListIter     iter,
+				     HgObject      *hobject);
+HgList    *hg_list_iter_delete_link (HgListIter     iter);
 
 
 G_END_DECLS
diff --git a/hieroglyph/version.h.in b/hieroglyph/version.h.in
index 7d2d5e3..cfbe095 100644
--- a/hieroglyph/version.h.in
+++ b/hieroglyph/version.h.in
@@ -29,7 +29,7 @@
 G_BEGIN_DECLS
 
 #define HIEROGLYPH_VERSION	"@VERSION@"
-#define HIEROGLYPH_UUID		"4421ead2-d773-4522-934f-f332a4600589"
+#define HIEROGLYPH_UUID		"9f44b1a6-671c-4534-9614-0ca1984d2d92"
 
 const char *__hg_rcsid G_GNUC_UNUSED = "$Rev$";