Inicio visor de arbol.

diff --git a/viewer/Makefile b/viewer/Makefile
new file mode 100644 (file)
index 0000000..b085b15
--- /dev/null
+++ b/viewer/Makefile
@@ -0,0 +1,13 @@
+TARGET=viewer
+CXXFLAGS=-Wall -g `pkg-config gtkmm-2.4 libgnomecanvasmm-2.6 --cflags` -I../src
+OBJECTS=main.o view_btree.o view_btree_data.o
+
+all: $(TARGET)
+
+$(TARGET): $(OBJECTS)
+       g++ -o $(TARGET) $(OBJECTS) ../src/libbtree.a `pkg-config gtkmm-2.4 libgnomecanvasmm-2.6 --libs` 
+
+clean:
+       rm -rf *.o $(TARGET)
+
+

diff --git a/viewer/main.cpp b/viewer/main.cpp
new file mode 100644 (file)
index 0000000..6f3f2db
--- /dev/null
+++ b/viewer/main.cpp
@@ -0,0 +1,29 @@
+
+#include <iostream>
+
+#include <gtkmm.h>
+#include <libgnomecanvasmm.h>
+
+#include "view_btree.h"
+
+using namespace Gnome::Canvas;
+
+int main(int argc, char *argv[])
+{
+       Gtk::Main kit(argc, argv);
+
+       Gnome::Canvas::init ();
+
+       Gtk::Window window;
+       Gnome::Canvas::Canvas canvas;
+
+       ViewBTree canvas_grp (canvas.root (), "test.idx");
+
+       window.add (canvas);
+       window.set_size_request (800, 100);
+       window.show_all ();
+
+       Gtk::Main::run(window);
+                                                           
+       return 0;
+}

diff --git a/viewer/view_btree.cpp b/viewer/view_btree.cpp
new file mode 100644 (file)
index 0000000..582b776
--- /dev/null
+++ b/viewer/view_btree.cpp
@@ -0,0 +1,47 @@
+
+#include "view_btree.h"
+#include "view_btree_data.h"
+
+ViewBTree::ViewBTree (Canvas::Group *parent, std::string filename):Canvas::Group (*parent, 0, 0),
+       BTree (filename, 64)
+{
+       /* 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);
+
+               AddKey (c);
+       }
+
+       /* Muestro la raiz */
+       uchar *node = ReadBlock (0);
+       BTreeNodeHeader node_h;
+       ReadNodoHeader (node, &node_h);
+       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";
+
+       int byte_to_pixels  = NODE_WIDTH/64; // TODO : 64 == BlockSize
+
+       /* Ahora pongo el lugar que opcupa el header */
+       double header_w = byte_to_pixels * sizeof (BTreeNodeHeader);
+       double x = 0;
+
+       Canvas::Rect *view_header = new Canvas::Rect (*this, x, 0, x+header_w, NODE_HEIGHT);
+       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);
+
+               x += w;
+               it++;
+       }
+
+}
+

diff --git a/viewer/view_btree.h b/viewer/view_btree.h
new file mode 100644 (file)
index 0000000..918a377
--- /dev/null
+++ b/viewer/view_btree.h
@@ -0,0 +1,22 @@
+
+#ifndef _VIEW_BTREE_H_
+#define _VIEW_BTREE_H_
+
+#include <libgnomecanvasmm.h>
+#include <string>
+
+#include "btree.h"
+
+#define NODE_WIDTH 500
+#define NODE_HEIGHT 50
+
+using namespace Gnome;
+
+class ViewBTree : public Canvas::Group, public BTree {
+       public:
+               ViewBTree (Canvas::Group *parent, std::string filename);
+
+};
+
+#endif
+

diff --git a/viewer/view_btree_data.cpp b/viewer/view_btree_data.cpp
new file mode 100644 (file)
index 0000000..403da55
--- /dev/null
+++ b/viewer/view_btree_data.cpp
@@ -0,0 +1,34 @@
+
+#include "view_btree_data.h"
+
+ViewBTreeData::ViewBTreeData (BTreeData *data, Canvas::Group *parent, double x1, double y1, double x2, double y2):
+       Canvas::Rect (*parent, x1, y1, x2, y2)
+{
+       this->data = data;
+       property_fill_color () = "red";
+       property_outline_color () = "black";
+}
+
+
+ViewBTreeData*
+ViewBTreeData::Create (BTreeData *data, Canvas::Group *parent, double x1, double y1, double x2, double y2)
+{
+       if (dynamic_cast<BTreeChildData *>(data))
+               return new ViewBTreeChildData (data, parent, x1, y1, x2, y2);
+
+       return new ViewBTreeData (data, parent, x1, y1, x2, y2);
+}
+
+ViewBTreeChildData::ViewBTreeChildData (BTreeData *data, Canvas::Group *parent, double x1, double y1, double x2, double y2):
+       ViewBTreeData (data, parent, x1, y1, x2, y2)
+{
+       property_fill_color () = "yellow";
+       property_outline_color () = "black";
+
+       double w = x2 - x1;
+       double h = y2 - y1;
+
+       std::string s = *data;
+       Canvas::Text *text = new Canvas::Text (*parent, x1 + w/2, y1 + h/2, s);
+}
+

diff --git a/viewer/view_btree_data.h b/viewer/view_btree_data.h
new file mode 100644 (file)
index 0000000..4fb9510
--- /dev/null
+++ b/viewer/view_btree_data.h
@@ -0,0 +1,31 @@
+
+#ifndef _VIEW_BTREE_DATA_H_
+#define _VIEW_BTREE_DATA_H_
+
+#include <libgnomecanvasmm.h>
+#include <string>
+
+#include "btree.h"
+#include "btree_data.h"
+
+using namespace Gnome;
+
+class ViewBTreeData :public Canvas::Rect {
+       public:
+               ViewBTreeData (BTreeData *data, Canvas::Group *parent, double x1, double y1, double x2, double y2);
+
+               static ViewBTreeData *Create (BTreeData *data, Canvas::Group *parent, double x1, double y1, double x2, double y2);
+
+       protected:
+               BTreeData *data;
+};
+
+class ViewBTreeChildData :public ViewBTreeData {
+       public:
+               ViewBTreeChildData (BTreeData *data, Canvas::Group *parent, double x1, double y1, double x2, double y2);
+
+       protected:
+               BTreeData *data;
+};
+#endif
+