sgpemv2/src/gui_builder.cc

// src/startgui.cc - 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

#include "config.h"
#include "gettext.h"

#include "schedulables_tree_widget.hh"
#include "simulation_widget.hh"
#include "resources_widget.hh"

#include "gui_builder.hh"
#include "graphical_preferences_editor.hh"

#include "backend/cpu_policies_gatekeeper.hh"
#include "backend/cpu_policy.hh"
#include "backend/cpu_policy_manager.hh"

#include "backend/history.hh"
#include "backend/simulation.hh"
#include "backend/serializers_gatekeeper.hh"
#include "backend/serializer.hh"

#include <gdkmm/pixbuf.h>
#include <glibmm/ustring.h>
#include <gtkmm/aboutdialog.h>
#include <gtkmm/messagedialog.h>
#include <gtkmm/filechooserdialog.h>
#include <gtkmm/main.h>
#include <gtkmm/menuitem.h>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/stock.h>
#include <gtkmm/toolbutton.h>

#include <iostream>

using namespace sgpem;
using Gnome::Glade::Xml;


void
GuiBuilder::on_edit_preferences_activate()
{
	new PreferencesEditor(); //FIXME: are we leaking this way?
}

void
GuiBuilder::on_file_open_activate()
{
  Glib::ustring msg;
  try
  {
    std::vector<Serializer*> serializers =
      SerializersGatekeeper::get_instance().get_registered();

    // FIXME using the first serializer available, this
    // will need to be changed when multiple serializers will
    // be made available
    Serializer& serializer = *serializers.at(0);
    History& history = Simulation::get_instance().get_history();

    // open file dialog...
    Gtk::FileChooserDialog dialog("Please choose a file", Gtk::FILE_CHOOSER_ACTION_OPEN);
    dialog.set_transient_for(get_initial_window());

    //Add response buttons the the dialog:
    dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
    dialog.add_button(Gtk::Stock::OPEN, Gtk::RESPONSE_OK);

    //Add filters, so that only certain file types can be selected:
    for(std::vector<Serializer*>::const_iterator iter=serializers.begin(); iter!=serializers.end(); iter++)
    {
      Serializer* ser = *iter;
      Gtk::FileFilter filter_sgpem;
      filter_sgpem.set_name(ser->get_filename_description());
      filter_sgpem.add_pattern(ser->get_filename_extension());
      dialog.add_filter(filter_sgpem);
    }

    Gtk::FileFilter filter_any;
    filter_any.set_name("Any files");
    filter_any.add_pattern("*");
    dialog.add_filter(filter_any);

    //Show the dialog and wait for a user response:
    int result = dialog.run();
    if(result==Gtk::RESPONSE_OK)
    {
      // DISABLED - Actually locks computer
      // serializer.restore_snapshot("prova1.xgp", history);
      msg = "File: " + dialog.get_filename() + " loaded.";
    } // end - if(result==Gtk::RESPONSE_OK)

  }
  catch (std::out_of_range e)
  {
    msg = _("ERROR: No registered serializer available");
  }
  catch (SerializerError e)
  {
    msg = _("ERROR: ") + Glib::ustring(e.what());
  }
  if(!msg.empty())
  {
    Gtk::MessageDialog msg_dialog(get_initial_window(), msg);
    msg_dialog.run();
  }
}

void
GuiBuilder::on_file_save_activate()
{
  // _simulation_widget->change_scaling_mode();
}

void
GuiBuilder::on_file_saveas_activate()
{
  Glib::ustring msg;
  try
  {
    std::vector<Serializer*> serializers =
      SerializersGatekeeper::get_instance().get_registered();

    // FIXME using the first serializer available, this
    // will need to be changed when multiple serializers will
    // be made available
    Serializer& serializer = *serializers.at(0);
    History& history = Simulation::get_instance().get_history();

    // open file dialog...
    Gtk::FileChooserDialog dialog("Please choose a file", Gtk::FILE_CHOOSER_ACTION_SAVE);
    dialog.set_transient_for(get_initial_window());

    //Add response buttons the the dialog:
    dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
    dialog.add_button(Gtk::Stock::SAVE, Gtk::RESPONSE_OK);

    //Add filters, so that only certain file types can be selected:
    Gtk::FileFilter filter_sgpem;
    filter_sgpem.set_name("Sgpem files");
    filter_sgpem.add_pattern("*.xgp");
    dialog.add_filter(filter_sgpem);
  
    Gtk::FileFilter filter_any;
    filter_any.set_name("Any files");
    filter_any.add_pattern("*");
    dialog.add_filter(filter_any);
  
    //Show the dialog and wait for a user response:
    int result = dialog.run();
    if(result==Gtk::RESPONSE_OK)
    {
      // DISABLED - Actually locks computer
      serializer.save_snapshot(dialog.get_filename(), history);
      msg = "File: " + dialog.get_filename() + " saved.";
    } // end - if(result==Gtk::RESPONSE_OK)

  }
  catch (std::out_of_range e)
  {
    msg = _("ERROR: No registered serializer available");
  }
  catch (SerializerError e)
  {
    msg = _("ERROR: ") + Glib::ustring(e.what());
  }
  if(!msg.empty())
  {
    Gtk::MessageDialog msg_dialog(get_initial_window(), msg);
    msg_dialog.run();
  }
}

GuiBuilder::GuiBuilder(const std::string& gladefile)
    : _refXml(Xml::create(gladefile))
{
  using namespace Gtk;

  //Window& main_window = get_initial_window();

  // file open dialog
  MenuItem* file_open = NULL;
  _refXml->get_widget("MenuItem.File.Open", file_open);
  file_open->signal_activate().connect(sigc::mem_fun(*this, &GuiBuilder::on_file_open_activate));

  // file save dialog
  MenuItem* file_save = NULL;
  _refXml->get_widget("MenuItem.File.Save", file_save);
  file_save->signal_activate().connect(sigc::mem_fun(*this, &GuiBuilder::on_file_save_activate));

  // file save dialog
  MenuItem* file_saveas = NULL;
  _refXml->get_widget("MenuItem.File.SaveAs", file_saveas);
  file_saveas->signal_activate().connect(sigc::mem_fun(*this, &GuiBuilder::on_file_saveas_activate));


  // Start, pause and stop simulation from the toolbar
  // TODO: can we use action groups instead of this?
  Simulation& sim = Simulation::get_instance();

  // FIXME: just to try; a proper way to select a policy has to be installed
  CPUPoliciesGatekeeper& pgk = CPUPoliciesGatekeeper::get_instance();
  CPUPolicy* policy = pgk.get_registered()[0]->get_avail_policies()[1]; // RoundRobin at the moment of writing
  std::cout << "Selected policy : " << policy->get_name() << std::endl;
  pgk.activate_policy(&sim.get_history(), policy);
  sim.set_policy(policy);

  ToolButton *toolbt_start, *toolbt_pause, *toolbt_stop;
  _refXml->get_widget("ToolBar.Play",  toolbt_start);
  _refXml->get_widget("ToolBar.Pause", toolbt_pause);
  _refXml->get_widget("ToolBar.Stop",  toolbt_stop);
  toolbt_start->signal_clicked().connect(sigc::mem_fun(sim, &Simulation::run));
  toolbt_pause->signal_clicked().connect(sigc::mem_fun(sim, &Simulation::pause));
  toolbt_stop->signal_clicked().connect(sigc::mem_fun(sim, &Simulation::stop));
  // Sensitivities
  toolbt_start->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_stop, &ToolButton::set_sensitive), true));
  toolbt_start->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_pause, &ToolButton::set_sensitive), true));
  toolbt_start->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_start, &ToolButton::set_sensitive), false));

  toolbt_pause->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_start, &ToolButton::set_sensitive), true));
  toolbt_pause->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_pause, &ToolButton::set_sensitive), false));

  toolbt_stop->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_stop, &ToolButton::set_sensitive), false));
  toolbt_stop->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_pause, &ToolButton::set_sensitive), false));
  toolbt_stop->signal_clicked().connect(sigc::bind(sigc::mem_fun(*toolbt_start, &ToolButton::set_sensitive), true));


  // Connect extra signals (decide where to do this...
  // here -- ugly -- derive widgets and then use
  // Glade::Xml::get_widget_derived -- better --)
  MenuItem* file_quit = NULL;
  _refXml->get_widget("MenuItem.File.Quit", file_quit);
  file_quit->signal_activate().connect(sigc::ptr_fun(&Main::quit));

	// preferences dialog
  MenuItem* edit_preferences;
  _refXml->get_widget("MenuItem.Edit.Preferences", edit_preferences);
  edit_preferences->signal_activate().connect(sigc::mem_fun(*this, &GuiBuilder::on_edit_preferences_activate));


  // About dialog
  MenuItem* help_about;
  _refXml->get_widget("MenuItem.Help.About", help_about);
  AboutDialog* about_dialog = NULL;
  _refXml->get_widget("AboutDialog", about_dialog);
  help_about->signal_activate().connect(sigc::mem_fun(*about_dialog, &Window::show));
  about_dialog->set_wrap_license(true);
  about_dialog->set_logo(Gdk::Pixbuf::create_from_file(GLADEDIR "/logo.png"));


  // Insert the schedulables TreeView custom widget
  ScrolledWindow* schedulables_sw = NULL;
  _refXml->get_widget("SchedulablesScrolledWindow", schedulables_sw);
  SchedulablesTreeWidget* scheds_tree = manage(new SchedulablesTreeWidget());
  schedulables_sw->add(*scheds_tree);
  // we have to remember to manually show custom added widgets:
  scheds_tree->show();


  ResourcesWidget* resources_widget = NULL;
  _refXml->get_widget_derived("Resources.Tree", resources_widget);
  resources_widget->show();


  // Main simulation widget  
  ScrolledWindow* simulation_window = NULL;
  _refXml->get_widget("SimulationScrolledWindow", simulation_window);
  _simulation_widget = new SimulationWidget(Simulation::get_instance());
  SimulationWidget* simulation_widget = manage(_simulation_widget);
  simulation_window->add(*simulation_widget);
  simulation_widget->show();
  
}


GuiBuilder::~GuiBuilder()
{}


Gtk::Window&
GuiBuilder::get_initial_window() const
{
  Gtk::Window* main_window = NULL;
  _refXml->get_widget("MainWindow", main_window);
  return *main_window;
}


void
GuiBuilder::open_file(const std::string& filename)
{
  // FIXME: to be written.
  // Debug line (erase me when done):
  std::cout << _("Filename to open: ") << filename << std::endl;
}