// src/schedulables_tree_widget.hh - Copyright 2005, 2006, University
//               of Padova, dept. of Pure and Applied
//               Mathematics
//
// This file is part of SGPEMv2.
//
// This is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// SGPEMv2 is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with SGPEMv2; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

#ifndef SCHEDULABLES_TREE_WIDGET_HH
#define SCHEDULABLES_TREE_WIDGET_HH 1

namespace sgpem
{
  class Schedulable;
  class Process;
  class Thread;
  class AddRequestDialog;
  class Request;
}

#include "config.h"

#include <gtkmm/treeview.h>
#include <gtkmm/treestore.h>
#include <gtkmm/menu.h>
#include <gtkmm/uimanager.h>
#include <gtkmm/actiongroup.h>
#include <gtkmm/dialog.h>
#include <libglademm/xml.h>

#include <sgpemv2/history_observer.hh>
#include <sgpemv2/schedulable.hh>
#include <sgpemv2/request.hh>

#include <vector>

namespace sgpem
{
  /**
   \brief Temporary class to be used to proceed with the development
   of the GUI until the cairo-based widget are fully working
   */
  class SchedulablesTreeWidget : public Gtk::TreeView, public HistoryObserver
  {
  public:
    SchedulablesTreeWidget();
    virtual ~SchedulablesTreeWidget();

    virtual void update(const History& history);
    
    virtual bool on_button_press_event(GdkEventButton* event);

  private:
    enum HandleType
    {
      htype_process,
      htype_thread,
      htype_request,
  //    htype_subrequest,
      htype_undefined
    };

    class CellRendererTextMarkup : public Gtk::CellRendererText
    {
      public:
	Glib::PropertyProxy_Base _property_renderable();
    };

    template <typename T>
    bool check_type(HandleType type);
    
    template <typename T>
    T* get_selected();

    template <typename T>
    T* get_row_handle_as(const Gtk::TreeModel::iterator& row);

    HandleType get_selection_type();
    HandleType get_row_type(const Gtk::TreeModel::iterator& row);

    void _on_add_process();
    void _on_add_thread();
    void _on_add_request();

    void _on_edit_process();
    void _on_edit_thread();
    void _on_edit_request();

    void add_edit_process(bool adding);
    void add_edit_thread(bool adding);
    
    void _on_remove_process();
    void _on_remove_thread();
    void _on_remove_request();
    
    void _on_arrival_column_data(Gtk::CellRenderer* cr, 
                                 const Gtk::TreeModel::iterator& it);
    
    void _on_entity_column_data(Gtk::CellRenderer* cr, 
                                const Gtk::TreeModel::iterator& it);
    
    void _on_state_column_data(Gtk::CellRenderer* cr, 
                               const Gtk::TreeModel::iterator& it);
    
    Glib::ustring markup_schedulable(const Schedulable& s);
    Glib::ustring markup_request(Request& s);

    Glib::ustring state_text(Schedulable::state state);
    Glib::ustring state_text(Request::state state);
    
    Glib::RefPtr<Gtk::TreeStore> _model;
    Gtk::TreeModelColumnRecord _columns;
    Gtk::TreeModelColumn<Glib::ustring> _main_column;
    Gtk::TreeModelColumn<HandleType> _types_column;
    Gtk::TreeModelColumn<void*> _handles_column;
    Glib::RefPtr<Gtk::UIManager> _UIManager;
    CellRendererTextMarkup _cell_renderer;

    void _update_expanded_vector(Gtk::TreeView* tree_view, const Gtk::TreeModel::Path& path);

    std::vector<Glib::ustring> _expanded_rows;
  };

} //~ namespace sgpem


#endif //~ SCHEDULABLES_TREE_WIDGET_HH