/*
  $Id: popupentry.cc,v 1.2 2004/05/10 13:35:19 sumpan Exp $

  Copyright (C) 1998-2002 The gtkmm Development Team & Daniel Sundberg
  
  The file is pretty much ripped right out of the gtkmm-2.0 
  example custom cellrenderer with small modifications by 
  Daniel Sundberg <dss@home.se>.

  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 "popupentry.h"

#include <gtkmm.h>
#include <gtk/gtkentry.h> /* see XXX below */
#include <iostream>

using namespace std;

PopupEntry::PopupEntry(const Glib::ustring& path)
:
  Glib::ObjectBase  (typeid(PopupEntry)),
  Gtk::EventBox     (),
  Gtk::CellEditable (),
  path_             (path),
  entry_            (0),
  editing_canceled_ (false)
{
  cout << "PopupEntry::PopupEntry" << endl;
  
  //Gtk::HBox *const hbox = new Gtk::HBox(false, 0);
  //add(*Gtk::manage(hbox));
  spin_button_ = manage(new Gtk::SpinButton(*(new Gtk::Adjustment(0, 0, 1000, 0.1, 1.0)), 0.0, 4));
  entry_ = spin_button_;
  entry_->set_has_frame(false);
  entry_->gobj()->is_cell_renderer = true; // XXX

  //hbox->pack_start(*spin_button_, Gtk::PACK_SHRINK);
  //hbox->pack_start(*spin_button_);
  add(*spin_button_);
  set_flags(Gtk::CAN_FOCUS);
  add_events(Gdk::KEY_PRESS_MASK | Gdk::KEY_RELEASE_MASK);

  show_all_children();
}

PopupEntry::~PopupEntry()
{}

Glib::ustring PopupEntry::get_path() const
{
  return path_;
}

void PopupEntry::set_text(const Glib::ustring& text)
{
  spin_button_->set_value(atof(text.c_str()));
}

Glib::ustring PopupEntry::get_text() const
{
  return entry_->get_text();
}

void PopupEntry::select_region(int start_pos, int end_pos)
{
  entry_->select_region(start_pos, end_pos);
}

bool PopupEntry::get_editing_canceled() const
{
  cout << "PopupEntry::get_editing_canceled" << endl;
  return editing_canceled_;
}

// static
int PopupEntry::get_button_width()
{
  cout << "PopupEntry::get_button_width" << endl;
  Gtk::Window window (Gtk::WINDOW_POPUP);

  Gtk::Button *const button = new Gtk::Button();
  window.add(*Gtk::manage(button));

  // Urgh.  Hackish :/
  window.move(-500, -500);
  window.show_all();

  Gtk::Requisition requisition = { 0, };
  window.size_request(requisition);

  return requisition.width;
}

sigc::signal0<void>& PopupEntry::signal_arrow_clicked()
{
  return signal_arrow_clicked_;
}

bool PopupEntry::on_key_press_event(GdkEventKey* event)
{
  cout << "PopupEntry::on_key_press_event" << endl;
  if(event->keyval == GDK_Escape)
  {
    editing_canceled_ = true;

    editing_done();
    remove_widget();

    return true;
  }

  entry_->grab_focus();

  // Hackish :/ Synthesize a key press event for the entry.

  GdkEvent tmp_event;
  memcpy(&tmp_event, event, sizeof(GdkEventKey));

  tmp_event.key.window = Glib::unwrap(entry_->get_window()); // XXX
  tmp_event.key.send_event = true;

  entry_->event(&tmp_event);

  return Gtk::EventBox::on_key_press_event(event);
}
/*
bool PopupEntry::on_button_press_event(GdkEventButton *event)
{
  cout << "PopupEntry::on_button_press_event" << endl;
  return true;
}
*/
void PopupEntry::start_editing_vfunc(GdkEvent* event)
{
  cout << "PopupEntry::start_editing_vfunc" << endl;
  using sigc::mem_fun;

  entry_->select_region(0, -1);

  entry_->signal_activate       ().connect(mem_fun(*this, &Self::on_entry_activate));
  //entry_->signal_key_press_event().connect(mem_fun(*this, &Self::on_entry_key_press_event));

}

void PopupEntry::on_entry_activate()
{
  cout << "PopupEntry::on_entry_activate" << endl;
  editing_done();
  //remove_widget(); // TODO: this line causes the widget to be removed twice -- dunno why
}

bool PopupEntry::on_entry_key_press_event(GdkEventKey* event)
{
  cout << "PopupEntry::on_entry_key_press_event" << endl;  
  if(event->keyval == GDK_Escape)
  {
    editing_canceled_ = true;

    editing_done();
    remove_widget();

    return true;
  }

  return false;
}