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/* Copyright (C) 2012 The giomm 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, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <glibmm/interface.h>
#include <giomm/simpleaction.h>

_DEFS(giomm,gio)
_PINCLUDE(glibmm/private/interface_p.h)
_PINCLUDE(gio/gio.h)

#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GActionMapInterface GActionMapInterface;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

namespace Gio
{

class Action;

/** ActionMap - Interface for action containers.
 * The ActionMap interface is implemented by ActionGroup implementations that
 * operate by containing a number of named Action instances, such as
 * SimpleActionGroup.
 *
 * One useful application of this interface is to map the names of actions from
 * various action groups to unique, prefixed names (e.g. by prepending "app."
 * or "win."). This is the motivation for the 'Map' part of the interface name.
 * @newin{2,32}
 */
class ActionMap : public Glib::Interface
{
  _CLASS_INTERFACE(ActionMap, GActionMap, G_ACTION_MAP, GActionMapInterface)

public:
  _WRAP_METHOD(Glib::RefPtr<Action> lookup_action(const Glib::ustring& action_name), g_action_map_lookup_action, refreturn)
  _WRAP_METHOD(Glib::RefPtr<const Action> lookup_action(const Glib::ustring& action_name) const, g_action_map_lookup_action, constversion, refreturn)

  /** A Slot to be called when an action has been activated,
   * passing a parameter of a specified type.
   * See add_action_with_parameter().
   *
   * For instance,
   * void on_slot_activated(const Glib::VariantBase& parameter);
   */
  using ActivateWithParameterSlot = sigc::slot<void(const Glib::VariantBase&)>;

  //This is an equivalent for g_action_map_add_action_entries().
  /** A convenience method for creating a SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action(const Glib::ustring& name);

  //This is an equivalent for g_action_map_add_action_entries().
  /** A convenience method for creating a SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param slot The callback method to be called when the action is activated.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action_with_parameter(const Glib::ustring& name, const ActivateWithParameterSlot& slot, const Glib::VariantType& parameter_type);
  _IGNORE(g_action_map_add_action_entries)

  /** A Slot to be called when an action has been activated,
   * without passing a parameter to the slot.
   * See add_action().
   *
   * For instance,
   * void on_slot_activated();
   */
  using ActivateSlot = sigc::slot<void()>;

  /** A convenience method for creating a SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param slot The callback method to be called when the action is activated.
   * @parameter_type The type of parameter to be passed to the slot.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action(const Glib::ustring& name, const ActivateSlot& slot);


  /** A convenience method for creating a boolean-stateful SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param state The initial state.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action_bool(const Glib::ustring& name, bool state = false);

  /** A convenience method for creating a boolean-stateful (toggle) SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param slot The callback method to be called when the action is activated.
   * @param state The initial state.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action_bool(const Glib::ustring& name, const ActivateSlot& slot, bool state = false);


//TODO: Docs: Add hints about how to specify the various possible states in the GtkBuilder XML.
  /** A convenience method for creating a string-based radio SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param state The initial state.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action_radio_string(const Glib::ustring& name, const Glib::ustring& state);

  /** A Slot to be called when an action has been activated.
   * See add_action_radio_string().
   *
   * For instance,
   * void on_slot_activated(const Glib::VariantBase& parameter);
   */
  using ActivateWithStringParameterSlot = sigc::slot<void(const Glib::ustring&)>;

//TODO: Docs: Add hints about how to specify the various possible states in the GtkBuilder XML.
  /** A convenience method for creating a string-based radio SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param slot The callback method to be called when the action is activated.
   * @param state The initial state.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action_radio_string(const Glib::ustring& name, const ActivateWithStringParameterSlot& slot, const Glib::ustring& state);

//TODO: Docs: Add hints about how to specify the various possible states in the GtkBuilder XML.
  /** A convenience method for creating an integer-based radio SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param state The initial state.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action_radio_integer(const Glib::ustring& name, gint32 state);

  /** A Slot to be called when an action has been activated.
   * See add_action_radio_int().
   *
   * For instance,
   * void on_slot_activated(const Glib::VariantBase& parameter);
   */
  using ActivateWithIntParameterSlot = sigc::slot<void(int)>;
  
//TODO: Docs: Add hints about how to specify the various possible states in the GtkBuilder XML.
  /** A convenience method for creating an integer-based radio SimpleAction instance
   * and adding it to the ActionMap.
   *
   * @param name The name of the Action.
   * @param slot The callback method to be called when the action is activated.
   * @param state The initial state.
   * @return The Action.
   */
  Glib::RefPtr<SimpleAction> add_action_radio_integer(const Glib::ustring& name, const ActivateWithIntParameterSlot& slot, gint32 state);


  _WRAP_METHOD(void add_action(const Glib::RefPtr<Action>& action), g_action_map_add_action)
  _WRAP_METHOD(void remove_action(const Glib::ustring& action_name), g_action_map_remove_action)

#m4 _CONVERSION(`Glib::RefPtr<Action>', `GAction*', `Glib::unwrap($3)')
  _WRAP_VFUNC(Glib::RefPtr<Action> lookup_action(const Glib::ustring& name) const, "lookup_action", refreturn)

#m4 _CONVERSION(`GAction*', `const Glib::RefPtr<Action>&', `Glib::wrap($3, true)')
  _WRAP_VFUNC(void add_action(const Glib::RefPtr<Action>& action) const, "add_action")

  _WRAP_VFUNC(void remove_action(const Glib::ustring& name), "remove_action")
};

} // namespace Gio