#include <sigc++/slot.h>
double ViewBTree::byte_to_pixels = 0;
+double ViewBTree::node_width = 0;
-ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename):Canvas::Group (*parent, 0, 0),
- BTree (filename, 64)
+ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename, uint block_size):Canvas::Group (*parent, 0, 0),
+ BTree (filename, block_size)
{
- /* TODO : hace que el arbol se abra de un archivo ya creado o que se
- * cree afuera
- */
- for (int i=0; i<=64; i++) {
- ClaveFija c(i);
+ /* Cada bytes lo hago de 5 units de ancho */
+ node_width = 3 * block_size; // 64 == blocksize
+ byte_to_pixels = node_width/block_size; // TODO : 64 == BlockSize
- AddKey (c);
- }
-
- byte_to_pixels = NODE_WIDTH/64; // TODO : 64 == BlockSize
-
- AddNode (0);
+ last_selected = NULL;
}
void ViewBTree::AddNode (uint num)
ViewNode *vnode = new ViewNode (this, num, node_h, keys);
vnode->property_y () = y;
vnode->property_x () = pos_x[node_h.level];
- pos_x[node_h.level] += NODE_WIDTH+10;
+ pos_x[node_h.level] += ViewBTree::node_width+10;
vnode->signal_selected().connect ( sigc::mem_fun (*this, &ViewBTree::on_item_selected) );
std::list<uint> childs = vnode->getChilds ();
}
}
-void ViewBTree::on_item_selected (BTreeData *data, uint num)
+void ViewBTree::on_item_selected (BTreeData *data, uint num, ViewNode *vnode)
{
BTreeNodeHeader node_h;
uchar *node;
ReadNodoHeader (node, &node_h);
delete [] node;
- std::cout << "Emit SignalSelected" << std::endl;
+ if (last_selected)
+ if (vnode != last_selected)
+ last_selected->SetSelected (false);
+ last_selected = vnode;
+ vnode->SetSelected (true);
m_signal_selected (data, node_h);
}