/* Copyright (C) 2003 The gtkmm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <https://www.gnu.org/licenses/>.
 */

#include <gtkmm/treeiter.h>
#include <gtkmm/cellarea.h>
#include <gtkmm/entry.h>
#include <gtk/gtk.h>

extern "C"
{
static gboolean SignalProxy_Match_gtk_callback(GtkEntryCompletion* completion, const char* key, GtkTreeIter* iter, gpointer user_data)
{
  auto the_slot = static_cast<Gtk::EntryCompletion::SlotMatch*>(user_data);

  try
  {
    auto tree_model = gtk_entry_completion_get_model(completion);
    return (*the_slot)(Glib::convert_const_gchar_ptr_to_ustring(key),
                         Gtk::TreeModel::const_iterator(tree_model, iter)
                         );
  }
  catch(...)
  {
    Glib::exception_handlers_invoke();
  }

  return false; //An arbitary default, just to avoid the compiler warning.
}

static void SignalProxy_Match_gtk_callback_destroy(void* data)
{
  delete static_cast<Gtk::EntryCompletion::SlotMatch*>(data);
}
} // extern "C"

namespace Gtk
{

void EntryCompletion::unset_model()
{
  gtk_entry_completion_set_model(gobj(), nullptr);
}

void EntryCompletion::set_match_func(const SlotMatch& slot)
{
  // Create a copy of the slot.  A pointer to this will be passed
  // through the callback's data parameter.  It will be deleted
  // when SignalProxy_Match_gtk_callback_destroy() is called.
  auto slot_copy = new SlotMatch(slot);

  gtk_entry_completion_set_match_func(gobj(),
      &SignalProxy_Match_gtk_callback, slot_copy,
      &SignalProxy_Match_gtk_callback_destroy);
}

} //namespace Gtk

namespace //anonymous
{
extern "C"
{
static gboolean Widget_signal_match_selected_callback(GtkEntryCompletion* self, GtkTreeModel* c_model, GtkTreeIter* c_iter, void* data)
{
  using namespace Gtk;
  typedef sigc::slot<bool(const TreeModel::iterator&)> SlotType;

  // Do not try to call a signal on a disassociated wrapper.
  if(Glib::ObjectBase::_get_current_wrapper((GObject*) self))
  {
    try
    {
      if(sigc::slot_base *const slot = Glib::SignalProxyNormal::data_to_slot(data))
      {
        //This conversion is the custom-written part:
        Gtk::TreeModel::iterator cppIter(c_model, c_iter);

        return static_cast<int>( (*static_cast<SlotType*>(slot))(cppIter) );
      }
    }
    catch(...)
    {
      Glib::exception_handlers_invoke();
    }
  }

  typedef gboolean RType;
  return RType();
}

static gboolean Widget_signal_match_selected_notify_callback(GtkEntryCompletion* self, GtkTreeModel* c_model, GtkTreeIter* c_iter, void* data)
{
  using namespace Gtk;
  typedef sigc::slot<void(const TreeModel::iterator&)> SlotType;

  // Do not try to call a signal on a disassociated wrapper.
  if(Glib::ObjectBase::_get_current_wrapper((GObject*) self))
  {
    try
    {
      if(sigc::slot_base *const slot = Glib::SignalProxyNormal::data_to_slot(data))
      {
        //This conversion is the custom-written part:
        Gtk::TreeModel::iterator cppIter(c_model, c_iter);

        (*static_cast<SlotType*>(slot))(cppIter);
      }
    }
    catch(...)
    {
      Glib::exception_handlers_invoke();
    }
  }

  typedef gboolean RType;
  return RType();
}
} // extern "C"

const Glib::SignalProxyInfo EntryCompletion_signal_match_selected_info =
{
  "match_selected",
  (GCallback) &Widget_signal_match_selected_callback,
  (GCallback) &Widget_signal_match_selected_notify_callback
};

extern "C"
{
static gboolean Widget_signal_cursor_on_match_callback(GtkEntryCompletion* self, GtkTreeModel* c_model, GtkTreeIter* c_iter, void* data)
{
  using namespace Gtk;
  typedef sigc::slot<bool(const TreeModel::iterator&)> SlotType;

  // Do not try to call a signal on a disassociated wrapper.
  if(Glib::ObjectBase::_get_current_wrapper((GObject*) self))
  {
    try
    {
      if(sigc::slot_base *const slot = Glib::SignalProxyNormal::data_to_slot(data))
      {
        //This conversion is the custom-written part:
        Gtk::TreeModel::iterator cppIter(c_model, c_iter);

        return static_cast<int>( (*static_cast<SlotType*>(slot))(cppIter) );
      }
    }
    catch(...)
    {
      Glib::exception_handlers_invoke();
    }
  }

  typedef gboolean RType;
  return RType();
}

static gboolean Widget_signal_cursor_on_match_notify_callback(GtkEntryCompletion* self, GtkTreeModel* c_model, GtkTreeIter* c_iter, void* data)
{
  using namespace Gtk;
  typedef sigc::slot<void(const TreeModel::iterator&)> SlotType;

  // Do not try to call a signal on a disassociated wrapper.
  if(Glib::ObjectBase::_get_current_wrapper((GObject*) self))
  {
    try
    {
      if(sigc::slot_base *const slot = Glib::SignalProxyNormal::data_to_slot(data))
      {
        //This conversion is the custom-written part:
        Gtk::TreeModel::iterator cppIter(c_model, c_iter);

        (*static_cast<SlotType*>(slot))(cppIter);
      }
    }
    catch(...)
    {
      Glib::exception_handlers_invoke();
    }
  }

  typedef gboolean RType;
  return RType();
}
} // extern "C"

const Glib::SignalProxyInfo EntryCompletion_signal_cursor_on_match_info =
{
  "cursor_on_match",
  (GCallback) &Widget_signal_cursor_on_match_callback,
  (GCallback) &Widget_signal_cursor_on_match_notify_callback
};

} //anonymous namespace

namespace Gtk
{

//Hand-coded signal wrapping:

Glib::SignalProxy<bool(const TreeModel::iterator&)> EntryCompletion::signal_match_selected()
{
  return Glib::SignalProxy<bool(const TreeModel::iterator&)>(this, &EntryCompletion_signal_match_selected_info);
}

Glib::SignalProxy<bool(const TreeModel::iterator&)> EntryCompletion::signal_cursor_on_match()
{
  return Glib::SignalProxy<bool(const TreeModel::iterator&)>(this, &EntryCompletion_signal_cursor_on_match_info);
}

} // namespace Gtk
