X-Git-Url: https://git.llucax.com/z.facultad/75.52/treemulator.git/blobdiff_plain/fd68ec89fabf4a95e4ebba38fe54041a9ad6d667..f5c3009d23291f17be708ddcd38b5e9b1eb2fd7d:/viewer/view_btree.cpp

diff --git a/viewer/view_btree.cpp b/viewer/view_btree.cpp
index 3fba848..eb2e067 100644
--- a/viewer/view_btree.cpp
+++ b/viewer/view_btree.cpp
@@ -7,19 +7,36 @@ double ViewBTree::byte_to_pixels = 0;
 double ViewBTree::node_width = 0;
 double ViewBTree::node_height = 0;
 
-ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename, uint block_size, int type):Canvas::Group (*parent, 0, 0),
-	BTree (filename, block_size, type)
+ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename, uint block_size, int tree_type, int type):Canvas::Group (*parent, 0, 0),
+	BTree (filename, block_size, tree_type, type)
 {
 	/* Cada bytes lo hago de 5 units de ancho */
-	node_width = 5 * block_size;
-	node_height = node_width/10;
+	node_width = 4 * block_size;
+	node_height = 50;
 	byte_to_pixels  = node_width/block_size;
 
 	last_selected = NULL;
+	last_visited = 0;
+}
+
+void ViewBTree::GoBack ()
+{
+	uint l = back.top ();
+	back.pop ();
+
+	Clear ();
+	AddNode (l, 1);
 }
 
 void ViewBTree::AddNode (uint num, uint padre)
 {
+	/* Hack de ultima hora :P */
+	if (padre == 0)
+		/* evito quedar en circulo :D */
+		back.push (last_visited);
+
+	last_visited = num;
+
 	uchar *node = ReadBlock (num);
 
 	BTreeNodeHeader node_h;
@@ -45,7 +62,7 @@ void ViewBTree::on_item_activated (BTreeData *data, uint num, ViewNode *vnode)
 	delete vnode;
 
 	std::cout << next << std::endl;
-	AddNode (next, num);
+	AddNode (next, 0);
 }
 
 void ViewBTree::on_item_selected (BTreeData *data, uint num, ViewNode *vnode)
@@ -61,7 +78,6 @@ void ViewBTree::on_item_selected (BTreeData *data, uint num, ViewNode *vnode)
 		if (vnode != last_selected)
 			last_selected->SetSelected (false);
 	last_selected = vnode;
-	vnode->SetSelected (true);
 
 	m_signal_selected (data, node_h);
 }
@@ -71,3 +87,14 @@ ViewBTree::type_signal_selected ViewBTree::signal_selected ()
 	return m_signal_selected;
 }
 
+void ViewBTree::Clear ()
+{
+	if (last_selected)
+		delete last_selected;
+}
+
+void ViewBTree::HighliteKey (Clave &k)
+{
+	last_selected->HighliteKey (k);
+}
+