X-Git-Url: https://git.llucax.com/z.facultad/75.52/treemulator.git/blobdiff_plain/b4a23678596cdf0fd5993ec6650422a86d2012be..84820a0fe02b9fdd63fb7c28d5a823bfa065c259:/viewer/view_btree.cpp

diff --git a/viewer/view_btree.cpp b/viewer/view_btree.cpp
index 582b776..4fb0839 100644
--- a/viewer/view_btree.cpp
+++ b/viewer/view_btree.cpp
@@ -1,6 +1,9 @@
 
 #include "view_btree.h"
 #include "view_btree_data.h"
+#include <sigc++/slot.h>
+
+double ViewBTree::byte_to_pixels = 0;
 
 ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename):Canvas::Group (*parent, 0, 0),
 	BTree (filename, 64)
@@ -14,34 +17,120 @@ ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename):Canvas::Group
 		AddKey (c);
 	}
 
+	byte_to_pixels  = NODE_WIDTH/64; // TODO : 64 == BlockSize
+
+	AddNode (0);
+}
+
+void ViewBTree::AddNode (uint num)
+{
+	if (node_placed[num]) {
+		std::cout << "WARNING : Tratando de agregar de nuevo el nodo " << num << std::endl;
+		return;
+	}
+
+	node_placed[num] = true;
 	/* Muestro la raiz */
-	uchar *node = ReadBlock (0);
+	double y = 0;
+	uchar *node = ReadBlock (num);
+
 	BTreeNodeHeader node_h;
 	ReadNodoHeader (node, &node_h);
+
+	if (num == 0) {
+		max_level = node_h.level;
+	} else {
+		y = (max_level - node_h.level)*(NODE_HEIGHT+10);
+	}
+
 	std::list<BTreeData *> keys = ReadKeys (node, node_h);
 
-	Canvas::Rect *rect = new Canvas::Rect (*this, 0, 0, NODE_WIDTH, NODE_HEIGHT);
-	rect->property_fill_color() = "gray";
+	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;
+	vnode->signal_selected().connect ( sigc::mem_fun (*this, &ViewBTree::on_item_selected) );
 
-	int byte_to_pixels  = NODE_WIDTH/64; // TODO : 64 == BlockSize
+	std::list<uint> childs = vnode->getChilds ();
+	std::list<uint>::iterator hit = childs.begin ();
+	while (hit != childs.end ()) {
+		if ((*hit) == 0) {
+			std::cout << "WARNING : Referencia a 0 encontrada!!" << std::endl;
+			hit = childs.end ();
+			continue;
+		}
+		AddNode (*hit);
+		hit++;
+	}
+}
 
-	/* Ahora pongo el lugar que opcupa el header */
-	double header_w = byte_to_pixels * sizeof (BTreeNodeHeader);
-	double x = 0;
+void ViewBTree::on_item_selected (BTreeData *data, uint num)
+{
+	BTreeNodeHeader node_h;
+	uchar *node;
+	
+	node = ReadBlock (num);
+	ReadNodoHeader (node, &node_h);
+	delete [] node;
 
-	Canvas::Rect *view_header = new Canvas::Rect (*this, x, 0, x+header_w, NODE_HEIGHT);
-	x += header_w;
+	std::cout << "Emit SignalSelected" << std::endl;
+	m_signal_selected (data, node_h);
+}
+
+ViewBTree::type_signal_selected ViewBTree::signal_selected ()
+{
+	return m_signal_selected;
+}
+
+ViewNode::ViewNode (Canvas::Group *parent, uint num, BTreeNodeHeader &header, std::list<BTreeData *> &keys)
+	: Canvas::Group (*parent)
+{
+	double header_w = ViewBTree::byte_to_pixels * sizeof (BTreeNodeHeader);
+	this->num = num;
+
+	/* Fondo */
+	Canvas::Rect *fondo = new Canvas::Rect (*this, 0, 0, NODE_WIDTH, NODE_HEIGHT);
+	fondo->property_fill_color() = "gray";
+	fondo->property_outline_color() = "black";
+
+	/* Header */
+	Canvas::Rect *h = new Canvas::Rect (*this, 0, 0, header_w, NODE_HEIGHT);
+	h->property_fill_color() = "blue";
+	h->property_outline_color() = "black";
+
+	/* Numero de nodo */
+	std::string node_num;
+	std::stringstream ss;
+	ss << num;
+	ss >> node_num;
+	new Canvas::Text (*this, header_w/2, NODE_HEIGHT/2, node_num);
+
+	double x = header_w;
 
 	std::list<BTreeData *>::iterator it = keys.begin ();
 	while (it != keys.end ()) {
 		BTreeData *data = (*it);
-		double w = byte_to_pixels * data->Size ();
-
-		ViewBTreeData::Create (data, this, x, 0, w+x, NODE_HEIGHT);
+		double w = ViewBTree::byte_to_pixels * data->Size ();
 
+		ViewBTreeData *v = ViewBTreeData::Create (data, this, x, 0, w+x, NODE_HEIGHT);
+		v->signal_clicked ().connect ( sigc::mem_fun (this , &ViewNode::on_item_clicked ));
 		x += w;
 		it++;
+
+		if (!dynamic_cast<BTreeLeafData *>(data)) {
+			/* Si no es un dato de una hoja, tiene hijos */
+			hijos.push_back (data->getChild ());
+		}
 	}
+}
 
+void ViewNode::on_item_clicked (BTreeData *data)
+{
+	m_signal_selected (data, num);
+}
+
+ViewNode::type_signal_selected ViewNode::signal_selected ()
+{
+	return m_signal_selected;
 }