/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2009 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>
*/
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#ifndef __CLUTTER_LAYOUT_MANAGER_H__
#define __CLUTTER_LAYOUT_MANAGER_H__
#include <clutter/clutter-actor.h>
#include <clutter/clutter-container.h>
#include <clutter/clutter-types.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_LAYOUT_MANAGER (clutter_layout_manager_get_type ())
#define CLUTTER_LAYOUT_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_LAYOUT_MANAGER, ClutterLayoutManager))
#define CLUTTER_IS_LAYOUT_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_LAYOUT_MANAGER))
#define CLUTTER_LAYOUT_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_LAYOUT_MANAGER, ClutterLayoutManagerClass))
#define CLUTTER_IS_LAYOUT_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_LAYOUT_MANAGER))
#define CLUTTER_LAYOUT_MANAGER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_LAYOUT_MANAGER, ClutterLayoutManagerClass))
typedef struct _ClutterLayoutManager ClutterLayoutManager;
typedef struct _ClutterLayoutManagerClass ClutterLayoutManagerClass;
/**
* ClutterLayoutManager:
*
* The #ClutterLayoutManager structure contains only private data
* and should be accessed using the provided API
*
* Since: 1.2
*/
struct _ClutterLayoutManager
{
/*< private >*/
GInitiallyUnowned parent_instance;
/* padding for future expansion */
gpointer dummy;
};
/**
* ClutterLayoutManagerClass:
* @get_preferred_width: virtual function; override to provide a preferred
* width for the layout manager. See also the get_preferred_width()
* virtual function in #ClutterActor
* @get_preferred_height: virtual function; override to provide a preferred
* height for the layout manager. See also the get_preferred_height()
* virtual function in #ClutterActor
* @allocate: virtual function; override to allocate the children of the
* layout manager. See also the allocate() virtual function in
* #ClutterActor
* @set_container: virtual function; override to set a back pointer
* on the #ClutterContainer using the layout manager. The implementation
* should not take a reference on the container, but just take a weak
* reference, to avoid potential leaks due to reference cycles
* @create_child_meta: virtual function; override to create a
* #ClutterChildMeta instance associated to a #ClutterContainer and a
* child #ClutterActor, used to maintain layout manager specific properties
* @layout_changed: class handler for the #ClutterLayoutManager::layout-changed
* signal
*
* The #ClutterLayoutManagerClass structure contains only private
* data and should be accessed using the provided API
*
* Since: 1.2
*/
struct _ClutterLayoutManagerClass
{
/*< private >*/
GInitiallyUnownedClass parent_class;
/*< public >*/
void (* get_preferred_width) (ClutterLayoutManager *manager,
ClutterContainer *container,
gfloat for_height,
gfloat *minimum_width_p,
gfloat *natural_width_p);
void (* get_preferred_height) (ClutterLayoutManager *manager,
ClutterContainer *container,
gfloat for_width,
gfloat *minimum_height_p,
gfloat *natural_height_p);
void (* allocate) (ClutterLayoutManager *manager,
ClutterContainer *container,
const ClutterActorBox *allocation,
ClutterAllocationFlags flags);
void (* set_container) (ClutterLayoutManager *manager,
ClutterContainer *container);
ClutterLayoutMeta *(* create_child_meta) (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor);
void (* layout_changed) (ClutterLayoutManager *manager);
/*< private >*/
/* padding for future expansion */
void (* _clutter_padding_1) (void);
void (* _clutter_padding_2) (void);
void (* _clutter_padding_3) (void);
void (* _clutter_padding_4) (void);
void (* _clutter_padding_5) (void);
void (* _clutter_padding_6) (void);
void (* _clutter_padding_7) (void);
void (* _clutter_padding_8) (void);
};
GType clutter_layout_manager_get_type (void) G_GNUC_CONST;
void clutter_layout_manager_get_preferred_width (ClutterLayoutManager *manager,
ClutterContainer *container,
gfloat for_height,
gfloat *min_width_p,
gfloat *nat_width_p);
void clutter_layout_manager_get_preferred_height (ClutterLayoutManager *manager,
ClutterContainer *container,
gfloat for_width,
gfloat *min_height_p,
gfloat *nat_height_p);
void clutter_layout_manager_allocate (ClutterLayoutManager *manager,
ClutterContainer *container,
const ClutterActorBox *allocation,
ClutterAllocationFlags flags);
void clutter_layout_manager_set_container (ClutterLayoutManager *manager,
ClutterContainer *container);
void clutter_layout_manager_layout_changed (ClutterLayoutManager *manager);
ClutterLayoutMeta *clutter_layout_manager_get_child_meta (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor);
void clutter_layout_manager_add_child_meta (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor);
void clutter_layout_manager_remove_child_meta (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor);
void clutter_layout_manager_child_set (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor,
const gchar *first_property,
...) G_GNUC_NULL_TERMINATED;
void clutter_layout_manager_child_get (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor,
const gchar *first_property,
...) G_GNUC_NULL_TERMINATED;
void clutter_layout_manager_child_set_property (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor,
const gchar *property_name,
const GValue *value);
void clutter_layout_manager_child_get_property (ClutterLayoutManager *manager,
ClutterContainer *container,
ClutterActor *actor,
const gchar *property_name,
GValue *value);
G_END_DECLS
#endif /* __CLUTTER_LAYOUT_MANAGER_H__ */