// -*- c++ -*-
/* $Id: combo.ccg,v 1.2 2003/10/17 16:18:24 murrayc Exp $ */

/* 
 *
 * Copyright 1998-2002 The gtkmm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

//These were deprecated between 1.2 and 2.0:
#include <gtk/gtklistitem.h>
#include <gtk/gtklist.h>

#include <gtk/gtkcombo.h>
#include <gtk/gtklabel.h>
#include <gtkmm/entry.h>
#include <gtkmm/button.h>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/window.h>
#include <gtkmm/item.h>

namespace Gtk
{

namespace ComboDropDown_Helpers
{

ComboDropDownList::iterator ComboDropDownList::insert(ComboDropDownList::iterator position, const Element& item)
{
  int pos = -1;

  if(position.node_)
    pos = g_list_position(glist(), position.node_);

  // gtk+ inserts the GList node allocated by g_list_append into the list as is!
  gtk_list_insert_items((GtkList*)gparent(), g_list_append(0, const_cast<GtkWidget*>(item.Widget::gobj())), pos);

  return --position;
}

void ComboDropDownList::remove(const_reference child)
{
  GList child_list;
  child_list.data = (gpointer)child.gobj();
  child_list.next = child_list.prev = 0;
  gtk_list_remove_items(GTK_LIST(gparent_), &child_list);
}

ComboDropDownList::iterator ComboDropDownList::erase(iterator position)
{
  //Check that it is a valid iterator, to a real item:
  if ( !position.node_|| (position == end()) )
    return end();

  //Get an iterator the the next item, to return:
  iterator next = position;
  next++;

  //Use GTK+ C function to remove it, by providing the GtkWidget*:
  GList child_list;
  child_list.data = (gpointer)position->gobj();
  child_list.next = child_list.prev = 0;
  gtk_list_remove_items(GTK_LIST(gparent_), &child_list);

  return next;
}

} // namespace ComboList_Helpers

ComboDropDown::ComboDropDownList& ComboDropDown::children()
{
  children_proxy_ = ComboDropDownList(gobj());
  return children_proxy_;
}

const ComboDropDown::ComboDropDownList& ComboDropDown::children() const
{
  children_proxy_ = ComboDropDownList(const_cast<GtkList*>(gobj()));
  return children_proxy_;
}

} // namespace Gtk


namespace Gtk
{

void Combo::remove_item_string(Gtk::Item& item)
{
  gtk_combo_set_item_string(gobj(), item.gobj(), 0);
}

Glib::ListHandle<Glib::ustring> Combo::get_popdown_strings() const
{
  GList* popdown_strings = 0;

  GList *const list_children =
      gtk_container_get_children(reinterpret_cast<GtkContainer*>(gobj()->list));

  for(const GList* node = list_children; node != 0; node = node->next)
  {
    GtkLabel *const label = reinterpret_cast<GtkLabel*>(
        gtk_bin_get_child(static_cast<GtkBin*>(node->data)));

    popdown_strings = g_list_prepend(
        popdown_strings, const_cast<char*>(gtk_label_get_text(label)));
  }

  g_list_free(list_children);
  popdown_strings = g_list_reverse(popdown_strings);

  return Glib::ListHandle<Glib::ustring>(popdown_strings, Glib::OWNERSHIP_SHALLOW);
}

} // namespace Gtk