0d428655e2
Since the "internal" state is global, it will leak onto actors that you didn't intend for it to, because it applies not just to the actors you create, but also to any actors *they* create. Eg, if you have a dialog box class, you might push/pop_internal around creating its buttons, so that those buttons get marked as internal to the dialog box. But ctx->internal_child will still be set during the *button*'s constructor as well, and so, eg, the label and icon inside the button actor will *also* be marked as internal children, even if that isn't what the button class wanted. The least intrusive change at this point is to make push_internal() and pop_internal() two methods of the Actor class, and take a ClutterActor pointer as the argument - thus moving the locality of the internal_child counter to the Actor itself. http://bugzilla.openedhand.com/show_bug.cgi?id=1990
547 lines
32 KiB
C
547 lines
32 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_ACTOR_H__
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#define __CLUTTER_ACTOR_H__
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/* clutter-actor.h */
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#include <glib-object.h>
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#include <pango/pango.h>
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#include <clutter/clutter-color.h>
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#include <clutter/clutter-types.h>
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#include <clutter/clutter-event.h>
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#include <clutter/clutter-shader.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_ACTOR (clutter_actor_get_type ())
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#define CLUTTER_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_ACTOR, ClutterActor))
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#define CLUTTER_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_ACTOR, ClutterActorClass))
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#define CLUTTER_IS_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_ACTOR))
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#define CLUTTER_IS_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_ACTOR))
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#define CLUTTER_ACTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_ACTOR, ClutterActorClass))
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/**
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* CLUTTER_ACTOR_SET_FLAGS:
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* @a: a #ClutterActor
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* @f: the #ClutterActorFlags to set
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*
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* Sets the given flags on a #ClutterActor
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*/
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#define CLUTTER_ACTOR_SET_FLAGS(a,f) (((ClutterActor*)(a))->flags |= (f))
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/**
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* CLUTTER_ACTOR_UNSET_FLAGS:
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* @a: a #ClutterActor
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* @f: the #ClutterActorFlags to unset
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*
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* Unsets the given flags on a #ClutterActor
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*/
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#define CLUTTER_ACTOR_UNSET_FLAGS(a,f) (((ClutterActor*)(a))->flags &= ~(f))
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#define CLUTTER_ACTOR_IS_MAPPED(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_MAPPED) != FALSE)
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#define CLUTTER_ACTOR_IS_REALIZED(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_REALIZED) != FALSE)
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#define CLUTTER_ACTOR_IS_VISIBLE(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_VISIBLE) != FALSE)
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#define CLUTTER_ACTOR_IS_REACTIVE(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_REACTIVE) != FALSE)
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typedef struct _ClutterActorClass ClutterActorClass;
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typedef struct _ClutterActorPrivate ClutterActorPrivate;
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/**
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* ClutterCallback:
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* @actor: a #ClutterActor
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* @data: user data
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*
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* Generic callback
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*/
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typedef void (*ClutterCallback) (ClutterActor *actor,
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gpointer data);
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/**
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* CLUTTER_CALLBACK
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* @f: a function
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*
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* Convenience macro to cast a function to #ClutterCallback
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*/
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#define CLUTTER_CALLBACK(f) ((ClutterCallback) (f))
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/**
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* ClutterActorFlags:
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* @CLUTTER_ACTOR_MAPPED: the actor will be painted (is visible, and inside
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* a toplevel, and all parents visible)
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* @CLUTTER_ACTOR_REALIZED: the resources associated to the actor have been
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* allocated
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* @CLUTTER_ACTOR_REACTIVE: the actor 'reacts' to mouse events emmitting event
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* signals
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* @CLUTTER_ACTOR_VISIBLE: the actor has been shown by the application program
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* @CLUTTER_ACTOR_NO_LAYOUT: the actor provides an explicit layout management
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* policy for its children; this flag will prevent Clutter from automatic
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* queueing of relayout and will defer all layouting to the actor itself
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*
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* Flags used to signal the state of an actor.
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*/
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typedef enum
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{
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CLUTTER_ACTOR_MAPPED = 1 << 1,
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CLUTTER_ACTOR_REALIZED = 1 << 2,
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CLUTTER_ACTOR_REACTIVE = 1 << 3,
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CLUTTER_ACTOR_VISIBLE = 1 << 4,
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CLUTTER_ACTOR_NO_LAYOUT = 1 << 5
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} ClutterActorFlags;
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/**
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* ClutterAllocationFlags:
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* @CLUTTER_ALLOCATION_NONE: No flag set
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* @CLUTTER_ABSOLUTE_ORIGIN_CHANGED: Whether the absolute origin of the
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* actor has changed; this implies that any ancestor of the actor has
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* been moved
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*
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* Flags passed to the #ClutterActor::allocate() virtual function and
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* to the clutter_actor_allocate() function
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*
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* Since: 1.0
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*/
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typedef enum
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{
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CLUTTER_ALLOCATION_NONE = 0,
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CLUTTER_ABSOLUTE_ORIGIN_CHANGED = 1 << 1
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} ClutterAllocationFlags;
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/**
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* ClutterActor:
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* @flags: #ClutterActorFlags
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*
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* Base class for actors.
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*/
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struct _ClutterActor
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{
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/*< private >*/
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GInitiallyUnowned parent_instance;
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/*< public >*/
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guint32 flags;
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/*< private >*/
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guint32 private_flags;
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ClutterActorPrivate *priv;
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};
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/**
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* ClutterActorClass:
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* @show: signal class handler for #ClutterActor::show; it must chain
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* up to the parent's implementation
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* @show_all: virtual function for containers and composite actors, to
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* determine which children should be shown when calling
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* clutter_actor_show_all() on the actor. Defaults to calling
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* clutter_actor_show().
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* @hide: signal class handler for #ClutterActor::hide; it must chain
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* up to the parent's implementation
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* @hide_all: virtual function for containers and composite actors, to
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* determine which children should be shown when calling
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* clutter_actor_hide_all() on the actor. Defaults to calling
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* clutter_actor_hide().
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* @realize: virtual function, used to allocate resources for the actor;
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* it should chain up to the parent's implementation
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* @unrealize: virtual function, used to deallocate resources allocated
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* in ::realize; it should chain up to the parent's implementation
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* @map: virtual function for containers and composite actors, to
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* map their children; it must chain up to the parent's implementation
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* @unmap: virtual function for containers and composite actors, to
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* unmap their children; it must chain up to the parent's implementation
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* @paint: virtual function, used to paint the actor
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* @get_preferred_width: virtual function, used when querying the minimum
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* and natural widths of an actor for a given height; it is used by
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* clutter_actor_get_preferred_width()
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* @get_preferred_height: virtual function, used when querying the minimum
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* and natural heights of an actor for a given width; it is used by
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* clutter_actor_get_preferred_height()
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* @allocate: virtual function, used when settings the coordinates of an
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* actor; it is used by clutter_actor_allocate(); it must chain up to
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* the parent's implementation
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* @apply_transform: virtual function, used when applying the transformations
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* to an actor before painting it or when transforming coordinates or
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* the allocation; it must chain up to the parent's implementation
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* @parent_set: signal class handler for the #ClutterActor::parent-set
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* @destroy: signal class handler for #ClutterActor::destroy
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* @pick: virtual function, used to draw an outline of the actor with
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* the given color
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* @queue_redraw: class handler for #ClutterActor::queue-redraw
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* @event: class handler for #ClutterActor::event
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* @button_press_event: class handler for #ClutterActor::button-press-event
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* @button_release_event: class handler for
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* #ClutterActor::button-release-event
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* @scroll_event: signal class closure for #ClutterActor::scroll-event
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* @key_press_event: signal class closure for #ClutterActor::key-press-event
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* @key_release_event: signal class closure for
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* #ClutterActor::key-release-event
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* @motion_event: signal class closure for #ClutterActor::motion-event
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* @enter_event: signal class closure for #ClutterActor::enter-event
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* @leave_event: signal class closure for #ClutterActor::leave-event
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* @captured_event: signal class closure for #ClutterActor::captured-event
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* @key_focus_in: signal class closure for #ClutterActor::focus-in
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* @key_focus_out: signal class closure for #ClutterActor::focus-out
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* @queue_relayout: class handler for #ClutterActor::queue-relayout
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*
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* Base class for actors.
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*/
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struct _ClutterActorClass
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{
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/*< private >*/
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GInitiallyUnownedClass parent_class;
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/*< public >*/
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void (* show) (ClutterActor *actor);
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void (* show_all) (ClutterActor *actor);
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void (* hide) (ClutterActor *actor);
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void (* hide_all) (ClutterActor *actor);
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void (* realize) (ClutterActor *actor);
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void (* unrealize) (ClutterActor *actor);
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void (* map) (ClutterActor *actor);
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void (* unmap) (ClutterActor *actor);
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void (* paint) (ClutterActor *actor);
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void (* parent_set) (ClutterActor *actor,
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ClutterActor *old_parent);
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void (* destroy) (ClutterActor *actor);
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void (* pick) (ClutterActor *actor,
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const ClutterColor *color);
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void (* queue_redraw) (ClutterActor *actor,
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ClutterActor *leaf_that_queued);
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/* size negotiation */
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void (* get_preferred_width) (ClutterActor *actor,
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gfloat for_height,
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gfloat *min_width_p,
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gfloat *natural_width_p);
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void (* get_preferred_height) (ClutterActor *actor,
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gfloat for_width,
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gfloat *min_height_p,
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gfloat *natural_height_p);
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void (* allocate) (ClutterActor *actor,
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const ClutterActorBox *box,
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ClutterAllocationFlags flags);
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/* transformations */
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void (* apply_transform) (ClutterActor *actor,
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CoglMatrix *matrix);
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/* event signals */
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gboolean (* event) (ClutterActor *actor,
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ClutterEvent *event);
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gboolean (* button_press_event) (ClutterActor *actor,
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ClutterButtonEvent *event);
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gboolean (* button_release_event) (ClutterActor *actor,
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ClutterButtonEvent *event);
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gboolean (* scroll_event) (ClutterActor *actor,
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ClutterScrollEvent *event);
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gboolean (* key_press_event) (ClutterActor *actor,
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ClutterKeyEvent *event);
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gboolean (* key_release_event) (ClutterActor *actor,
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ClutterKeyEvent *event);
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gboolean (* motion_event) (ClutterActor *actor,
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ClutterMotionEvent *event);
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gboolean (* enter_event) (ClutterActor *actor,
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ClutterCrossingEvent *event);
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gboolean (* leave_event) (ClutterActor *actor,
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ClutterCrossingEvent *event);
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gboolean (* captured_event) (ClutterActor *actor,
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ClutterEvent *event);
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void (* key_focus_in) (ClutterActor *actor);
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void (* key_focus_out) (ClutterActor *actor);
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void (* queue_relayout) (ClutterActor *actor);
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/*< private >*/
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/* padding for future expansion */
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gpointer _padding_dummy[31];
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};
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GType clutter_actor_get_type (void) G_GNUC_CONST;
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void clutter_actor_set_flags (ClutterActor *self,
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ClutterActorFlags flags);
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void clutter_actor_unset_flags (ClutterActor *self,
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ClutterActorFlags flags);
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ClutterActorFlags clutter_actor_get_flags (ClutterActor *self);
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void clutter_actor_show (ClutterActor *self);
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void clutter_actor_show_all (ClutterActor *self);
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void clutter_actor_hide (ClutterActor *self);
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void clutter_actor_hide_all (ClutterActor *self);
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void clutter_actor_realize (ClutterActor *self);
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void clutter_actor_unrealize (ClutterActor *self);
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void clutter_actor_map (ClutterActor *self);
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void clutter_actor_unmap (ClutterActor *self);
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void clutter_actor_paint (ClutterActor *self);
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void clutter_actor_queue_redraw (ClutterActor *self);
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void clutter_actor_queue_relayout (ClutterActor *self);
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void clutter_actor_destroy (ClutterActor *self);
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/* size negotiation */
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void clutter_actor_set_request_mode (ClutterActor *self,
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ClutterRequestMode mode);
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ClutterRequestMode clutter_actor_get_request_mode (ClutterActor *self);
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void clutter_actor_get_preferred_width (ClutterActor *self,
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gfloat for_height,
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gfloat *min_width_p,
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gfloat *natural_width_p);
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void clutter_actor_get_preferred_height (ClutterActor *self,
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gfloat for_width,
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gfloat *min_height_p,
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gfloat *natural_height_p);
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void clutter_actor_get_preferred_size (ClutterActor *self,
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gfloat *min_width_p,
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gfloat *min_height_p,
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gfloat *natural_width_p,
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gfloat *natural_height_p);
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void clutter_actor_allocate (ClutterActor *self,
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const ClutterActorBox *box,
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ClutterAllocationFlags flags);
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void clutter_actor_allocate_preferred_size (ClutterActor *self,
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ClutterAllocationFlags flags);
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void clutter_actor_allocate_available_size (ClutterActor *self,
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gfloat x,
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gfloat y,
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gfloat available_width,
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gfloat available_height,
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ClutterAllocationFlags flags);
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void clutter_actor_get_allocation_box (ClutterActor *self,
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ClutterActorBox *box);
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void clutter_actor_get_allocation_geometry (ClutterActor *self,
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ClutterGeometry *geom);
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void clutter_actor_get_allocation_vertices (ClutterActor *self,
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ClutterActor *ancestor,
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ClutterVertex verts[]);
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void clutter_actor_set_geometry (ClutterActor *self,
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const ClutterGeometry *geometry);
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void clutter_actor_get_geometry (ClutterActor *self,
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ClutterGeometry *geometry);
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void clutter_actor_set_size (ClutterActor *self,
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gfloat width,
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gfloat height);
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void clutter_actor_get_size (ClutterActor *self,
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gfloat *width,
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gfloat *height);
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void clutter_actor_get_transformed_size (ClutterActor *self,
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gfloat *width,
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gfloat *height);
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void clutter_actor_set_position (ClutterActor *self,
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gfloat x,
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gfloat y);
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void clutter_actor_get_position (ClutterActor *self,
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gfloat *x,
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gfloat *y);
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void clutter_actor_get_transformed_position (ClutterActor *self,
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gfloat *x,
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gfloat *y);
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gboolean clutter_actor_get_fixed_position_set (ClutterActor *self);
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void clutter_actor_set_fixed_position_set (ClutterActor *self,
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gboolean is_set);
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gfloat clutter_actor_get_width (ClutterActor *self);
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gfloat clutter_actor_get_height (ClutterActor *self);
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void clutter_actor_set_width (ClutterActor *self,
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gfloat width);
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void clutter_actor_set_height (ClutterActor *self,
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gfloat height);
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gfloat clutter_actor_get_x (ClutterActor *self);
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gfloat clutter_actor_get_y (ClutterActor *self);
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void clutter_actor_set_x (ClutterActor *self,
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gfloat x);
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void clutter_actor_set_y (ClutterActor *self,
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gfloat y);
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void clutter_actor_set_rotation (ClutterActor *self,
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ClutterRotateAxis axis,
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gdouble angle,
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gfloat x,
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gfloat y,
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gfloat z);
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void clutter_actor_set_z_rotation_from_gravity (ClutterActor *self,
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gdouble angle,
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ClutterGravity gravity);
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gdouble clutter_actor_get_rotation (ClutterActor *self,
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ClutterRotateAxis axis,
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gfloat *x,
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gfloat *y,
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gfloat *z);
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ClutterGravity clutter_actor_get_z_rotation_gravity (ClutterActor *self);
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void clutter_actor_set_opacity (ClutterActor *self,
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guint8 opacity);
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guint8 clutter_actor_get_opacity (ClutterActor *self);
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guint8 clutter_actor_get_paint_opacity (ClutterActor *self);
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gboolean clutter_actor_get_paint_visibility (ClutterActor *self);
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void clutter_actor_set_name (ClutterActor *self,
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const gchar *name);
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G_CONST_RETURN gchar *clutter_actor_get_name (ClutterActor *self);
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guint32 clutter_actor_get_gid (ClutterActor *self);
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void clutter_actor_set_clip (ClutterActor *self,
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gfloat xoff,
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gfloat yoff,
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gfloat width,
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gfloat height);
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void clutter_actor_remove_clip (ClutterActor *self);
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gboolean clutter_actor_has_clip (ClutterActor *self);
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void clutter_actor_get_clip (ClutterActor *self,
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gfloat *xoff,
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gfloat *yoff,
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gfloat *width,
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gfloat *height);
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void clutter_actor_set_parent (ClutterActor *self,
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ClutterActor *parent);
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ClutterActor * clutter_actor_get_parent (ClutterActor *self);
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void clutter_actor_reparent (ClutterActor *self,
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ClutterActor *new_parent);
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void clutter_actor_unparent (ClutterActor *self);
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ClutterActor* clutter_actor_get_stage (ClutterActor *actor);
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void clutter_actor_raise (ClutterActor *self,
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ClutterActor *below);
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void clutter_actor_lower (ClutterActor *self,
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ClutterActor *above);
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void clutter_actor_raise_top (ClutterActor *self);
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void clutter_actor_lower_bottom (ClutterActor *self);
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void clutter_actor_set_depth (ClutterActor *self,
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gfloat depth);
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gfloat clutter_actor_get_depth (ClutterActor *self);
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void clutter_actor_set_scale (ClutterActor *self,
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gdouble scale_x,
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gdouble scale_y);
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void clutter_actor_set_scale_full (ClutterActor *self,
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gdouble scale_x,
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gdouble scale_y,
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gfloat center_x,
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gfloat center_y);
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void clutter_actor_set_scale_with_gravity (ClutterActor *self,
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gdouble scale_x,
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gdouble scale_y,
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ClutterGravity gravity);
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void clutter_actor_get_scale (ClutterActor *self,
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gdouble *scale_x,
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gdouble *scale_y);
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void clutter_actor_get_scale_center (ClutterActor *self,
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gfloat *center_x,
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gfloat *center_y);
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ClutterGravity clutter_actor_get_scale_gravity (ClutterActor *self);
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void clutter_actor_move_by (ClutterActor *self,
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gfloat dx,
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gfloat dy);
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void clutter_actor_set_reactive (ClutterActor *actor,
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gboolean reactive);
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gboolean clutter_actor_get_reactive (ClutterActor *actor);
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gboolean clutter_actor_event (ClutterActor *actor,
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ClutterEvent *event,
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gboolean capture);
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ClutterActor * clutter_get_actor_by_gid (guint32 id);
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gboolean clutter_actor_set_shader (ClutterActor *self,
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ClutterShader *shader);
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ClutterShader * clutter_actor_get_shader (ClutterActor *self);
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void clutter_actor_set_shader_param (ClutterActor *self,
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const gchar *param,
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const GValue *value);
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void clutter_actor_set_shader_param_int (ClutterActor *self,
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const gchar *param,
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gint value);
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void clutter_actor_set_shader_param_float (ClutterActor *self,
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const gchar *param,
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gfloat value);
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void clutter_actor_set_anchor_point (ClutterActor *self,
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gfloat anchor_x,
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gfloat anchor_y);
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void clutter_actor_move_anchor_point (ClutterActor *self,
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gfloat anchor_x,
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gfloat anchor_y);
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void clutter_actor_get_anchor_point (ClutterActor *self,
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gfloat *anchor_x,
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gfloat *anchor_y);
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ClutterGravity clutter_actor_get_anchor_point_gravity (ClutterActor *self);
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void clutter_actor_set_anchor_point_from_gravity (ClutterActor *self,
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ClutterGravity gravity);
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void clutter_actor_move_anchor_point_from_gravity (ClutterActor *self,
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ClutterGravity gravity);
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gboolean clutter_actor_transform_stage_point (ClutterActor *self,
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gfloat x,
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gfloat y,
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gfloat *x_out,
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gfloat *y_out);
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gboolean clutter_actor_is_rotated (ClutterActor *self);
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gboolean clutter_actor_is_scaled (ClutterActor *self);
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gboolean clutter_actor_should_pick_paint (ClutterActor *self);
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void clutter_actor_get_abs_allocation_vertices (ClutterActor *self,
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ClutterVertex verts[]);
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void clutter_actor_apply_transform_to_point (ClutterActor *self,
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const ClutterVertex *point,
|
|
ClutterVertex *vertex);
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void clutter_actor_apply_relative_transform_to_point (ClutterActor *self,
|
|
ClutterActor *ancestor,
|
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const ClutterVertex *point,
|
|
ClutterVertex *vertex);
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void clutter_actor_grab_key_focus (ClutterActor *self);
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PangoContext *clutter_actor_get_pango_context (ClutterActor *self);
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PangoContext *clutter_actor_create_pango_context (ClutterActor *self);
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PangoLayout * clutter_actor_create_pango_layout (ClutterActor *self,
|
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const gchar *text);
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void clutter_actor_get_transformation_matrix (ClutterActor *self,
|
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CoglMatrix *matrix);
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gboolean clutter_actor_is_in_clone_paint (ClutterActor *self);
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|
gboolean clutter_actor_has_pointer (ClutterActor *self);
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void clutter_actor_set_text_direction (ClutterActor *self,
|
|
ClutterTextDirection text_dir);
|
|
ClutterTextDirection clutter_actor_get_text_direction (ClutterActor *self);
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void clutter_actor_push_internal (ClutterActor *self);
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void clutter_actor_pop_internal (ClutterActor *self);
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G_END_DECLS
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#endif /* __CLUTTER_ACTOR_H__ */
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