269598a2cf
clutter_group_add would evaluate the actor argument twice, which is bad if this is a function call creating a new actor and not a variable.
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2006 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_GROUP_H__
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#define __CLUTTER_GROUP_H__
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#include <glib-object.h>
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#include <clutter/clutter-types.h>
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#include <clutter/clutter-actor.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_GROUP clutter_group_get_type()
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#define CLUTTER_GROUP(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
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CLUTTER_TYPE_GROUP, ClutterGroup))
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#define CLUTTER_GROUP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), \
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CLUTTER_TYPE_GROUP, ClutterGroupClass))
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#define CLUTTER_IS_GROUP(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
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CLUTTER_TYPE_GROUP))
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#define CLUTTER_IS_GROUP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), \
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CLUTTER_TYPE_GROUP))
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#define CLUTTER_GROUP_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), \
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CLUTTER_TYPE_GROUP, ClutterGroupClass))
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typedef struct _ClutterGroup ClutterGroup;
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typedef struct _ClutterGroupClass ClutterGroupClass;
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typedef struct _ClutterGroupPrivate ClutterGroupPrivate;
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/**
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* ClutterGroup:
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*
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* The #ClutterGroup structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 0.1
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*/
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struct _ClutterGroup
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{
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/*< private >*/
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ClutterActor parent_instance;
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ClutterGroupPrivate *priv;
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};
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/**
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* ClutterGroupClass:
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*
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* The #ClutterGroupClass structure contains only private data
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*
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* Since: 0.1
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*/
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struct _ClutterGroupClass
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{
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/*< private >*/
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ClutterActorClass parent_class;
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/* padding for future expansion */
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void (*_clutter_reserved1) (void);
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void (*_clutter_reserved2) (void);
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void (*_clutter_reserved3) (void);
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void (*_clutter_reserved4) (void);
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void (*_clutter_reserved5) (void);
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void (*_clutter_reserved6) (void);
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};
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GType clutter_group_get_type (void) G_GNUC_CONST;
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ClutterActor *clutter_group_new (void);
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ClutterActor *clutter_group_get_nth_child (ClutterGroup *self,
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gint index_);
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gint clutter_group_get_n_children (ClutterGroup *self);
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void clutter_group_remove_all (ClutterGroup *group);
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/* for Mr. Mallum */
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#define clutter_group_add(group,actor) G_STMT_START { \
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ClutterActor *_actor = (ClutterActor *) (actor); \
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if (CLUTTER_IS_GROUP ((group)) && CLUTTER_IS_ACTOR ((_actor))) \
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{ \
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ClutterContainer *_container = (ClutterContainer *) (group); \
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clutter_container_add_actor (_container, _actor); \
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} } G_STMT_END
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G_END_DECLS
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#endif /* __CLUTTER_GROUP_H__ */
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