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diff --git a/src/GudhUI/gui/MainWindow.h b/src/GudhUI/gui/MainWindow.h
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+++ b/src/GudhUI/gui/MainWindow.h
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+/*    This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
+ *    See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
+ *    Author(s):       David Salinas
+ *
+ *    Copyright (C) 2014 Inria
+ *
+ *    Modification(s):
+ *      - YYYY/MM Author: Description of the modification
+ */
+
+#ifndef GUI_MAINWINDOW_H_
+#define GUI_MAINWINDOW_H_
+
+// Workaround https://svn.boost.org/trac/boost/ticket/12534
+#include <boost/container/flat_map.hpp>
+
+#include <QMainWindow>
+#include "ui_main_window.h"
+#include "model/Model.h"
+#include "view/Viewer_instructor.h"
+
+
+class Menu_k_nearest_neighbors;
+class Menu_uniform_neighbors;
+class Menu_edge_contraction;
+class Menu_persistence;
+
+class MainWindow : public QMainWindow, public Ui::MainWindow {
+  Q_OBJECT
+
+ private:
+  Model model_;
+  Viewer_instructor* viewer_instructor_;
+  Menu_k_nearest_neighbors* menu_k_nearest_neighbors_;
+  Menu_uniform_neighbors* menu_uniform_neighbors_;
+  Menu_edge_contraction* menu_edge_contraction_;
+  Menu_persistence* menu_persistence_;
+
+ public:
+  MainWindow(QWidget* parent = 0);
+  void connectActions();
+
+  /**
+   * compute the bounding box and calls update view
+   */
+  void init_view() const;
+  void update_view() const;
+
+
+ protected:
+  void closeEvent(QCloseEvent *event);
+
+  void keyPressEvent(QKeyEvent *event) { }
+
+ public:
+ public slots:
+  /**
+   * open a file chooser to choose an off to load
+   */
+  void off_file_open();
+
+  void off_points_open();
+
+  /**
+   * open a file chooser to choose an off to save
+   */
+  void off_file_save();
+  void off_points_save();
+
+  void show_graph_stats();
+  void show_complex_stats();
+  void show_complex_dimension();
+
+
+  void build_rips_menu();
+  void build_rips(double alpha);
+  void build_k_nearest_neighbors_menu();
+  void build_k_nearest_neighbors(unsigned k);
+
+
+  void contract_edge_menu();
+  void contract_edges(unsigned num_collapses);
+
+
+  void collapse_vertices();
+  void collapse_edges();
+
+
+  void uniform_noise();
+  void lloyd();
+
+  void show_homology_group();
+  void show_euler_characteristic();
+  void persistence_menu();
+  void compute_persistence(int p, double threshold, int max_dim, double min_pers);
+  void critical_points_menu();
+  void is_manifold_menu();
+
+
+ public:
+ signals:
+  void sceneChanged() const;
+};
+
+
+#endif  // GUI_MAINWINDOW_H_