mutter/clutter/clutter/clutter-content.h
Niels De Graef b77e6f0c98 clutter: Content: Use G_DECLARE_INTERFACE()
It cuts away a bit of the GObject boilerplate, gives us support for
`g_autoptr`, and removes the typedef hack inside clutter-content.c.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/380
2019-02-27 16:44:24 +00:00

95 lines
3.2 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2012 Intel Corporation.
*
* 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 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 <http://www.gnu.org/licenses/>.
*
* Author:
* Emmanuele Bassi <ebassi@linux.intel.com>
*/
#ifndef __CLUTTER_CONTENT_H__
#define __CLUTTER_CONTENT_H__
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#include <clutter/clutter-types.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_CONTENT (clutter_content_get_type ())
CLUTTER_EXPORT
G_DECLARE_INTERFACE (ClutterContent, clutter_content, CLUTTER, CONTENT, GObject)
/**
* ClutterContentInterface:
* @get_preferred_size: virtual function; should be overridden by subclasses
* of #ClutterContent that have a natural size
* @paint_content: virtual function; called each time the content needs to
* paint itself
* @attached: virtual function; called each time a #ClutterContent is attached
* to a #ClutterActor.
* @detached: virtual function; called each time a #ClutterContent is detached
* from a #ClutterActor.
* @invalidate: virtual function; called each time a #ClutterContent state
* is changed.
*
* The #ClutterContentInterface structure contains only
* private data.
*
* Since: 1.10
*/
struct _ClutterContentInterface
{
/*< private >*/
GTypeInterface g_iface;
/*< public >*/
gboolean (* get_preferred_size) (ClutterContent *content,
gfloat *width,
gfloat *height);
void (* paint_content) (ClutterContent *content,
ClutterActor *actor,
ClutterPaintNode *node);
void (* attached) (ClutterContent *content,
ClutterActor *actor);
void (* detached) (ClutterContent *content,
ClutterActor *actor);
void (* invalidate) (ClutterContent *content);
void (* invalidate_size) (ClutterContent *content);
};
CLUTTER_EXPORT
gboolean clutter_content_get_preferred_size (ClutterContent *content,
gfloat *width,
gfloat *height);
CLUTTER_EXPORT
void clutter_content_invalidate (ClutterContent *content);
CLUTTER_EXPORT
void clutter_content_invalidate_size (ClutterContent *content);
G_END_DECLS
#endif /* __CLUTTER_CONTENT_H__ */