X-Git-Url: https://git.llucax.com/z.facultad/75.52/treemulator.git/blobdiff_plain/de3b0cb3cb22673c55c267a6cfd0428df0a084f8..aa158a0284c1bc32a979d50275aa1b24438d46ef:/viewer/view_btree.h

diff --git a/viewer/view_btree.h b/viewer/view_btree.h
index 894bf5d..18f4df7 100644
--- a/viewer/view_btree.h
+++ b/viewer/view_btree.h
@@ -4,6 +4,7 @@
 
 #include <libgnomecanvasmm.h>
 #include <string>
+#include <stack>
 
 #include "btree.h"
 #include "view_node.h"
@@ -18,6 +19,7 @@ class ViewBTree : public Canvas::Group, public BTree {
 
 		void Clear ();
 		void HighliteKey (Clave &k);
+		void GoBack ();
 
 		static double byte_to_pixels;
 		static double node_width;
@@ -33,6 +35,8 @@ class ViewBTree : public Canvas::Group, public BTree {
 		/* Control para no poner 2 veces un nodo */
 		/* Un nodo que quiera ser puesto 2 veces es un bug :) */
 		std::map<uint,bool> node_placed;
+		std::stack<uint> back;
+		uint last_visited;
 
 	public:
 		void AddNode (uint num, uint padre = 0);