X-Git-Url: https://git.llucax.com/z.facultad/75.52/treemulator.git/blobdiff_plain/f5c3009d23291f17be708ddcd38b5e9b1eb2fd7d..354f66865d010a90b1d81c83bcaf55115e5859e1:/viewer/view_btree.cpp?ds=sidebyside

diff --git a/viewer/view_btree.cpp b/viewer/view_btree.cpp
index eb2e067..7604293 100644
--- a/viewer/view_btree.cpp
+++ b/viewer/view_btree.cpp
@@ -19,6 +19,35 @@ ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename, uint block_si
 	last_visited = 0;
 }
 
+ViewBTree::ViewBTree (Canvas::Group *parent, const std::string filename)
+	:Canvas::Group (*parent, 0, 0), BTree (filename)
+{
+	/* Cada bytes lo hago de 5 units de ancho */
+	node_width = 4 * header.block_size;
+	node_height = 50;
+	byte_to_pixels  = node_width/header.block_size;
+
+	last_selected = NULL;
+	last_visited = 0;
+}
+
+ViewBTree* ViewBTree::Open (Canvas::Group *parent, const std::string &filename)
+{
+	ViewBTree *tree = new ViewBTree (parent, filename);
+
+	if (tree->fp == NULL) {
+		delete tree;
+		return NULL;
+	}
+
+	/* El magic no coincide!! */
+	if (strcmp (tree->header.magic, "DILUMA")) {
+		delete tree;
+		return NULL;
+	}
+	return tree;
+}
+
 void ViewBTree::GoBack ()
 {
 	uint l = back.top ();