#include <libgnomecanvasmm.h>
#include <string>
+#include <stack>
#include "btree.h"
-
-#define NODE_WIDTH 500
-#define NODE_HEIGHT 50
+#include "view_node.h"
using namespace Gnome;
+class ViewNode;
+
class ViewBTree : public Canvas::Group, public BTree {
public:
- ViewBTree (Canvas::Group *parent, std::string filename);
+ ViewBTree (Canvas::Group *parent, std::string filename, uint block_size, int tree_type, int type);
+
+ void Clear ();
+ void HighliteKey (Clave &k);
+ void GoBack ();
static double byte_to_pixels;
+ static double node_width;
+ static double node_height;
+
+ typedef SigC::Signal2<void, BTreeData *, BTreeNodeHeader&> type_signal_selected;
+ type_signal_selected signal_selected ();
protected:
+ type_signal_selected m_signal_selected;
int max_level; /* Lo saco de la raiz */
/* Posicion X por nivel */
std::map<uint,double> pos_x;
/* 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;
- void AddNode (uint num);
-
-};
-
-class ViewNode : public Canvas::Group {
public:
- ViewNode (Canvas::Group *parent, uint num, BTreeNodeHeader &header, std::list<BTreeData *> &keys);
+ void AddNode (uint num, uint padre = 0);
+ void on_item_selected (BTreeData *, uint, ViewNode *);
+ void on_item_activated (BTreeData *, uint, ViewNode *);
- std::list<uint>& getChilds () { return hijos; }
- private:
- std::list<uint> hijos;
+ ViewNode *last_selected;
};
#endif