add textbox::set_undo_queue_length

a new method for setting the undo queue length
2016-09-22 08:03:30 +08:00
parent 74e113b2cc
commit c916d0ace3
4 changed files with 28 additions and 0 deletions
--- a/source/gui/widgets/textbox.cpp
+++ b/source/gui/widgets/textbox.cpp
@@ -606,6 +606,14 @@ namespace drawerbase {
 				editor->select_behavior(move_to_end);
 		}

+		void textbox::set_undo_queue_length(std::size_t len)
+		{
+			internal_scope_guard lock;
+			auto editor = get_drawer_trigger().editor();
+			if (editor)
+				editor->set_undo_queue_length(len);
+		}
+
 		//Override _m_caption for caption()
 		auto textbox::_m_caption() const throw() -> native_string_type
 		{