added 'View/Sort/by thread date'.

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@574 ee746299-78ed-0310-b773-934348b2243d

5 files changed, 30 insertions, 0 deletions

diff --git a/libsylph/enums.h b/libsylph/enums.h
index 13ac2a18..cfd2a42c 100644
--- a/libsylph/enums.h
+++ b/libsylph/enums.h
@@ -42,6 +42,7 @@ typedef enum
 	S_COL_MSG_INFO,
 
 	S_COL_LABEL,
+	S_COL_TDATE,
 	S_COL_TO,
 
 	S_COL_FOREGROUND,
diff --git a/libsylph/folder.c b/libsylph/folder.c
index 25db6b24..d6fbdc95 100644
--- a/libsylph/folder.c
+++ b/libsylph/folder.c
@@ -1288,6 +1288,8 @@ static gboolean folder_build_tree(GNode *node, gpointer data)
 				sort_key = SORT_BY_SIZE;
 			else if (!strcmp(attr->value, "date"))
 				sort_key = SORT_BY_DATE;
+			else if (!strcmp(attr->value, "thread-date"))
+				sort_key = SORT_BY_TDATE;
 			else if (!strcmp(attr->value, "from"))
 				sort_key = SORT_BY_FROM;
 			else if (!strcmp(attr->value, "subject"))
@@ -1476,6 +1478,7 @@ static void folder_write_list_recursive(GNode *node, gpointer data)
 	static gchar *folder_item_stype_str[] = {"normal", "inbox", "outbox",
 						 "draft", "queue", "trash"};
 	static gchar *sort_key_str[] = {"none", "number", "size", "date",
+					"thread-date",
 					"from", "subject", "score", "label",
 					"mark", "unread", "mime", "to"};
 
diff --git a/libsylph/folder.h b/libsylph/folder.h
index 0908e241..bff4ad22 100644
--- a/libsylph/folder.h
+++ b/libsylph/folder.h
@@ -86,6 +86,7 @@ typedef enum
 	SORT_BY_NUMBER,
 	SORT_BY_SIZE,
 	SORT_BY_DATE,
+	SORT_BY_TDATE,
 	SORT_BY_FROM,
 	SORT_BY_SUBJECT,
 	SORT_BY_SCORE,
diff --git a/libsylph/procmsg.c b/libsylph/procmsg.c
index 57eff70a..dd178e6c 100644
--- a/libsylph/procmsg.c
+++ b/libsylph/procmsg.c
@@ -850,6 +850,30 @@ GNode *procmsg_get_thread_tree(GSList *mlist)
 	return root;
 }
 
+static gboolean procmsg_thread_date_func(GNode *node, gpointer data)
+{
+	guint *tdate = (guint *)data;
+	MsgInfo *msginfo = (MsgInfo *)node->data;
+
+	if (*tdate < msginfo->date_t)
+		*tdate = msginfo->date_t;
+
+	return FALSE;
+}
+
+guint procmsg_get_thread_date(GNode *node)
+{
+	guint tdate = 0;
+
+	g_return_val_if_fail(node != NULL && node->parent != NULL &&
+			     node->parent->parent == NULL, 0);
+
+	g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
+			procmsg_thread_date_func, &tdate);
+
+	return tdate;
+}
+
 gint procmsg_move_messages(GSList *mlist)
 {
 	GSList *cur, *movelist = NULL;
diff --git a/libsylph/procmsg.h b/libsylph/procmsg.h
index 14c2b6d7..a54ac1a3 100644
--- a/libsylph/procmsg.h
+++ b/libsylph/procmsg.h
@@ -249,6 +249,7 @@ void	procmsg_clear_cache		(FolderItem	*item);
 void	procmsg_clear_mark		(FolderItem	*item);
 
 GNode  *procmsg_get_thread_tree		(GSList		*mlist);
+guint	procmsg_get_thread_date		(GNode		*node);
 
 gint	procmsg_move_messages		(GSList		*mlist);
 gint	procmsg_copy_messages		(GSList		*mlist);