//$Id: examplewindow.cc,v 1.4 2006/07/19 02:55:30 jjongsma Exp $ -*- c++ -*-

/* gtkmm example Copyright (C) 2002 gtkmm development team
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <iostream>
#include "examplewindow.h"

ExampleWindow::ExampleWindow()
: m_Button_Start("Start"),
  m_Button_Quit(Gtk::Stock::QUIT)
{
  set_title("update-ui example");
  set_border_width(6);
  set_default_size(400, -1);


  add(m_VBox);

  m_VBox.pack_start(m_ProgressBar, Gtk::PACK_SHRINK);
  m_VBox.pack_start(m_ButtonBox, Gtk::PACK_SHRINK);

  m_ButtonBox.pack_start(m_Button_Quit, Gtk::PACK_SHRINK);
  m_ButtonBox.pack_start(m_Button_Start, Gtk::PACK_SHRINK);
  m_ButtonBox.set_border_width(6);
  m_ButtonBox.set_layout(Gtk::BUTTONBOX_END);
  m_Button_Quit.signal_clicked().connect( sigc::mem_fun(*this, &ExampleWindow::on_button_quit) );
  m_Button_Start.signal_clicked().connect( sigc::mem_fun(*this, &ExampleWindow::on_button_start) );


  show_all_children();
}

ExampleWindow::~ExampleWindow()
{
}

void ExampleWindow::on_button_quit()
{
  hide();
}

void ExampleWindow::on_button_start()
{
  const double max = 10000;
  //Do intensive work, while still keeping the user interface updated and responsive.
  for(double i = 0; i < max; ++i)
  {
     std::cout << "gtkmm example: example output: " << i << " of " << max << std::endl;

     m_ProgressBar.set_fraction(i / max);

     //Allow GTK+ to perform all updates for us
     //Without this, the progress bar will appear to do nothing and then suddenly fill completely. 
     while(Gtk::Main::instance()->events_pending())
       Gtk::Main::instance()->iteration();
  }
}






