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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpcontroller.h
* Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
*
* 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 3 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/>.
*/
#ifndef GIMP_ENABLE_CONTROLLER_UNDER_CONSTRUCTION
#error GimpController is unstable API under construction
#endif
#ifndef __GIMP_CONTROLLER_H__
#define __GIMP_CONTROLLER_H__
G_BEGIN_DECLS
/* For information look at the html documentation */
/**
* GimpControllerEventType:
* @GIMP_CONTROLLER_EVENT_TRIGGER: the event is a simple trigger
* @GIMP_CONTROLLER_EVENT_VALUE: the event carries a double value
*
* Event types for #GimpController.
**/
typedef enum
{
GIMP_CONTROLLER_EVENT_TRIGGER,
GIMP_CONTROLLER_EVENT_VALUE
} GimpControllerEventType;
typedef struct _GimpControllerEventAny GimpControllerEventAny;
typedef struct _GimpControllerEventTrigger GimpControllerEventTrigger;
typedef struct _GimpControllerEventValue GimpControllerEventValue;
typedef union _GimpControllerEvent GimpControllerEvent;
/**
* GimpControllerEventAny:
* @type: The event's #GimpControllerEventType
* @source: The event's source #GimpController
* @event_id: The event's ID
*
* Generic controller event. Every event has these three members at the
* beginning of its struct
**/
struct _GimpControllerEventAny
{
GimpControllerEventType type;
GimpController *source;
gint event_id;
};
/**
* GimpControllerEventTrigger:
* @type: The event's #GimpControllerEventType
* @source: The event's source #GimpController
* @event_id: The event's ID
*
* Trigger controller event.
**/
struct _GimpControllerEventTrigger
{
GimpControllerEventType type;
GimpController *source;
gint event_id;
};
/**
* GimpControllerEventValue:
* @type: The event's #GimpControllerEventType
* @source: The event's source #GimpController
* @event_id: The event's ID
* @value: The event's value
*
* Value controller event.
**/
struct _GimpControllerEventValue
{
GimpControllerEventType type;
GimpController *source;
gint event_id;
GValue value;
};
/**
* GimpControllerEvent:
* @type: The event type
* @any: GimpControllerEventAny
* @trigger: GimpControllerEventTrigger
* @value: GimpControllerEventValue
*
* A union to hjold all event event types
**/
union _GimpControllerEvent
{
GimpControllerEventType type;
GimpControllerEventAny any;
GimpControllerEventTrigger trigger;
GimpControllerEventValue value;
};
#define GIMP_TYPE_CONTROLLER (gimp_controller_get_type ())
#define GIMP_CONTROLLER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CONTROLLER, GimpController))
#define GIMP_CONTROLLER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CONTROLLER, GimpControllerClass))
#define GIMP_IS_CONTROLLER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CONTROLLER))
#define GIMP_IS_CONTROLLER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CONTROLLER))
#define GIMP_CONTROLLER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CONTROLLER, GimpControllerClass))
typedef struct _GimpControllerClass GimpControllerClass;
struct _GimpController
{
GObject parent_instance;
gchar *name;
gchar *state;
};
struct _GimpControllerClass
{
GObjectClass parent_class;
const gchar *name;
const gchar *help_domain;
const gchar *help_id;
/* virtual functions */
gint (* get_n_events) (GimpController *controller);
const gchar * (* get_event_name) (GimpController *controller,
gint event_id);
const gchar * (* get_event_blurb) (GimpController *controller,
gint event_id);
/* signals */
gboolean (* event) (GimpController *controller,
const GimpControllerEvent *event);
const gchar *icon_name;
/* Padding for future expansion */
void (* _gimp_reserved2) (void);
void (* _gimp_reserved3) (void);
void (* _gimp_reserved4) (void);
};
GType gimp_controller_get_type (void) G_GNUC_CONST;
GimpController * gimp_controller_new (GType controller_type);
gint gimp_controller_get_n_events (GimpController *controller);
const gchar * gimp_controller_get_event_name (GimpController *controller,
gint event_id);
const gchar * gimp_controller_get_event_blurb (GimpController *controller,
gint event_id);
/* protected */
gboolean gimp_controller_event (GimpController *controller,
const GimpControllerEvent *event);
G_END_DECLS
#endif /* __GIMP_CONTROLLER_H__ */
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