mutter/clutter/clutter-actor.h
Emmanuele Bassi 67113ed690 actor: Implement implicit animatable properties
Clutter is meant to be, and I quote from the README, a toolkit:

  for creating fast, compelling, portable, and dynamic graphical
  user interfaces

and yet the default mode of operation for setting an actor's state on
the scene graph (position, size, opacity, rotation, scaling, depth,
etc.) is *not* dynamic. We assume a static UI, and then animate it.

This is the wrong way to design an API for a toolkit meant to be used to
create animated user interfaces. The default mode of operation should be
to implicitly animate every state transition, and only allow skipping
the animation if the user consciously decides to do so — i.e. the design
tenet of the API should be to make The Right Thing™ by default, and make
it really hard (or even impossible) to do The Wrong Thing™.

So we should identify "animatable" properties, i.e. those properties
that should be implicitly animated by ClutterActor, and use the
animation framework we provide to tween the transitions between the
current state and the desired state; the implicit animation should
happen when setting these properties using the public accessors, and not
through some added functionality. For instance, the following:

  clutter_actor_set_position (actor, newX, newY);

should not make the actor jump to the (newX, newY) point; it should
tween the actor's position between the current point and the desired
point.

Since we have to maintain backward compatibility with existing
applications, we still need to mark the transitions explicitly, but we
can be smart about it, and treat transition states as a stack that can
be pushed and popped, e.g.:

  clutter_actor_save_easing_state (actor);

    clutter_actor_set_easing_duration (actor, 500);
    clutter_actor_set_position (actor, newX, newY);
    clutter_actor_set_opacity (actor, newOpacity);

  clutter_actor_restore_easing_state (actor);

And we can even start stacking animations, e.g.:

  clutter_actor_save_easing_state (actor);

    clutter_actor_set_easing_duration (actor, 500);
    clutter_actor_set_position (actor, newX, newY);

    clutter_actor_save_easing_state (actor);

      clutter_actor_set_easing_duration (actor, 500);
      clutter_actor_set_easing_mode (actor, CLUTTER_LINEAR);
      clutter_actor_set_opacity (actor, newOpacity);
      clutter_actor_set_depth (actor, newDepth);

    clutter_actor_restore_easing_state (actor);

  clutter_actor_restore_easing_state (actor);

And so on, and so forth.

The implementation takes advantage of the newly added Transition API,
which uses only ClutterTimeline sub-classes and ClutterInterval, to cut
down the amount of signal emissions and memory management of object
instances; as well of using the ClutterAnimatable interface for custom
properties and interpolation of values.
2012-03-15 17:01:12 +00:00

660 lines
48 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006, 2007, 2008 OpenedHand Ltd
* Copyright (C) 2009, 2010 Intel Corp
*
* 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/>.
*/
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#ifndef __CLUTTER_ACTOR_H__
#define __CLUTTER_ACTOR_H__
/* clutter-actor.h */
#include <pango/pango.h>
#include <atk/atk.h>
#include <cogl/cogl.h>
#include <clutter/clutter-types.h>
#include <clutter/clutter-event.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_ACTOR (clutter_actor_get_type ())
#define CLUTTER_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_ACTOR, ClutterActor))
#define CLUTTER_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_ACTOR, ClutterActorClass))
#define CLUTTER_IS_ACTOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_ACTOR))
#define CLUTTER_IS_ACTOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_ACTOR))
#define CLUTTER_ACTOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_ACTOR, ClutterActorClass))
/**
* CLUTTER_ACTOR_SET_FLAGS:
* @a: a #ClutterActor
* @f: the #ClutterActorFlags to set
*
* Sets the given flags on a #ClutterActor
*/
#define CLUTTER_ACTOR_SET_FLAGS(a,f) (((ClutterActor*)(a))->flags |= (f))
/**
* CLUTTER_ACTOR_UNSET_FLAGS:
* @a: a #ClutterActor
* @f: the #ClutterActorFlags to unset
*
* Unsets the given flags on a #ClutterActor
*/
#define CLUTTER_ACTOR_UNSET_FLAGS(a,f) (((ClutterActor*)(a))->flags &= ~(f))
#define CLUTTER_ACTOR_IS_MAPPED(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_MAPPED) != FALSE)
#define CLUTTER_ACTOR_IS_REALIZED(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_REALIZED) != FALSE)
#define CLUTTER_ACTOR_IS_VISIBLE(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_VISIBLE) != FALSE)
#define CLUTTER_ACTOR_IS_REACTIVE(a) ((((ClutterActor*)(a))->flags & CLUTTER_ACTOR_REACTIVE) != FALSE)
typedef struct _ClutterActorClass ClutterActorClass;
typedef struct _ClutterActorPrivate ClutterActorPrivate;
/**
* ClutterCallback:
* @actor: a #ClutterActor
* @data: (closure): user data
*
* Generic callback
*/
typedef void (*ClutterCallback) (ClutterActor *actor,
gpointer data);
/**
* CLUTTER_CALLBACK
* @f: a function
*
* Convenience macro to cast a function to #ClutterCallback
*/
#define CLUTTER_CALLBACK(f) ((ClutterCallback) (f))
/**
* ClutterActor:
* @flags: #ClutterActorFlags
*
* Base class for actors.
*/
struct _ClutterActor
{
/*< private >*/
GInitiallyUnowned parent_instance;
/*< public >*/
guint32 flags;
/*< private >*/
guint32 private_flags;
ClutterActorPrivate *priv;
};
/**
* ClutterActorClass:
* @show: signal class handler for #ClutterActor::show; it must chain
* up to the parent's implementation
* @show_all: virtual function for containers and composite actors, to
* determine which children should be shown when calling
* clutter_actor_show_all() on the actor. Defaults to calling
* clutter_actor_show(). This virtual function is deprecated and it
* should not be overridden.
* @hide: signal class handler for #ClutterActor::hide; it must chain
* up to the parent's implementation
* @hide_all: virtual function for containers and composite actors, to
* determine which children should be shown when calling
* clutter_actor_hide_all() on the actor. Defaults to calling
* clutter_actor_hide(). This virtual function is deprecated and it
* should not be overridden.
* @realize: virtual function, used to allocate resources for the actor;
* it should chain up to the parent's implementation
* @unrealize: virtual function, used to deallocate resources allocated
* in ::realize; it should chain up to the parent's implementation
* @map: virtual function for containers and composite actors, to
* map their children; it must chain up to the parent's implementation.
* Overriding this function is optional.
* @unmap: virtual function for containers and composite actors, to
* unmap their children; it must chain up to the parent's implementation.
* Overriding this function is optional.
* @paint: virtual function, used to paint the actor
* @get_preferred_width: virtual function, used when querying the minimum
* and natural widths of an actor for a given height; it is used by
* clutter_actor_get_preferred_width()
* @get_preferred_height: virtual function, used when querying the minimum
* and natural heights of an actor for a given width; it is used by
* clutter_actor_get_preferred_height()
* @allocate: virtual function, used when settings the coordinates of an
* actor; it is used by clutter_actor_allocate(); it must chain up to
* the parent's implementation
* @apply_transform: virtual function, used when applying the transformations
* to an actor before painting it or when transforming coordinates or
* the allocation; it must chain up to the parent's implementation
* @parent_set: signal class handler for the #ClutterActor::parent-set
* @destroy: signal class handler for #ClutterActor::destroy
* @pick: virtual function, used to draw an outline of the actor with
* the given color
* @queue_redraw: class handler for #ClutterActor::queue-redraw
* @event: class handler for #ClutterActor::event
* @button_press_event: class handler for #ClutterActor::button-press-event
* @button_release_event: class handler for
* #ClutterActor::button-release-event
* @scroll_event: signal class closure for #ClutterActor::scroll-event
* @key_press_event: signal class closure for #ClutterActor::key-press-event
* @key_release_event: signal class closure for
* #ClutterActor::key-release-event
* @motion_event: signal class closure for #ClutterActor::motion-event
* @enter_event: signal class closure for #ClutterActor::enter-event
* @leave_event: signal class closure for #ClutterActor::leave-event
* @captured_event: signal class closure for #ClutterActor::captured-event
* @key_focus_in: signal class closure for #ClutterActor::key-focus-in
* @key_focus_out: signal class closure for #ClutterActor::key-focus-out
* @queue_relayout: class handler for #ClutterActor::queue-relayout
* @get_accessible: virtual function, returns the accessible object that
* describes the actor to an assistive technology.
* @get_paint_volume: virtual function, for sub-classes to define their
* #ClutterPaintVolume
* @has_overlaps: virtual function for
* sub-classes to advertise whether they need an offscreen redirect
* to get the correct opacity. See
* clutter_actor_set_offscreen_redirect() for details.
*
* Base class for actors.
*/
struct _ClutterActorClass
{
/*< private >*/
GInitiallyUnownedClass parent_class;
/*< public >*/
void (* show) (ClutterActor *self);
void (* show_all) (ClutterActor *self);
void (* hide) (ClutterActor *self);
void (* hide_all) (ClutterActor *self);
void (* realize) (ClutterActor *self);
void (* unrealize) (ClutterActor *self);
void (* map) (ClutterActor *self);
void (* unmap) (ClutterActor *self);
void (* paint) (ClutterActor *self);
void (* parent_set) (ClutterActor *actor,
ClutterActor *old_parent);
void (* destroy) (ClutterActor *self);
void (* pick) (ClutterActor *actor,
const ClutterColor *color);
void (* queue_redraw) (ClutterActor *actor,
ClutterActor *leaf_that_queued);
/* size negotiation */
void (* get_preferred_width) (ClutterActor *self,
gfloat for_height,
gfloat *min_width_p,
gfloat *natural_width_p);
void (* get_preferred_height) (ClutterActor *self,
gfloat for_width,
gfloat *min_height_p,
gfloat *natural_height_p);
void (* allocate) (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags);
/* transformations */
void (* apply_transform) (ClutterActor *actor,
CoglMatrix *matrix);
/* event signals */
gboolean (* event) (ClutterActor *actor,
ClutterEvent *event);
gboolean (* button_press_event) (ClutterActor *actor,
ClutterButtonEvent *event);
gboolean (* button_release_event) (ClutterActor *actor,
ClutterButtonEvent *event);
gboolean (* scroll_event) (ClutterActor *actor,
ClutterScrollEvent *event);
gboolean (* key_press_event) (ClutterActor *actor,
ClutterKeyEvent *event);
gboolean (* key_release_event) (ClutterActor *actor,
ClutterKeyEvent *event);
gboolean (* motion_event) (ClutterActor *actor,
ClutterMotionEvent *event);
gboolean (* enter_event) (ClutterActor *actor,
ClutterCrossingEvent *event);
gboolean (* leave_event) (ClutterActor *actor,
ClutterCrossingEvent *event);
gboolean (* captured_event) (ClutterActor *actor,
ClutterEvent *event);
void (* key_focus_in) (ClutterActor *actor);
void (* key_focus_out) (ClutterActor *actor);
void (* queue_relayout) (ClutterActor *self);
/* accessibility support */
AtkObject * (* get_accessible) (ClutterActor *self);
gboolean (* get_paint_volume) (ClutterActor *actor,
ClutterPaintVolume *volume);
gboolean (* has_overlaps) (ClutterActor *self);
/*< private >*/
/* padding for future expansion */
gpointer _padding_dummy[28];
};
/**
* ClutterActorIter:
*
* An iterator structure that allows to efficiently iterate over a
* section of the scene graph.
*
* The contents of the <structname>ClutterActorIter</structname> structure
* are private and should only be accessed using the provided API.
*
* Since: 1.10
*/
struct _ClutterActorIter
{
/*< private >*/
gpointer CLUTTER_PRIVATE_FIELD (dummy1);
gpointer CLUTTER_PRIVATE_FIELD (dummy2);
gpointer CLUTTER_PRIVATE_FIELD (dummy3);
gint CLUTTER_PRIVATE_FIELD (dummy4);
gpointer CLUTTER_PRIVATE_FIELD (dummy5);
};
GType clutter_actor_get_type (void) G_GNUC_CONST;
ClutterActor * clutter_actor_new (void);
void clutter_actor_set_flags (ClutterActor *self,
ClutterActorFlags flags);
void clutter_actor_unset_flags (ClutterActor *self,
ClutterActorFlags flags);
ClutterActorFlags clutter_actor_get_flags (ClutterActor *self);
void clutter_actor_show (ClutterActor *self);
void clutter_actor_hide (ClutterActor *self);
void clutter_actor_realize (ClutterActor *self);
void clutter_actor_unrealize (ClutterActor *self);
void clutter_actor_map (ClutterActor *self);
void clutter_actor_unmap (ClutterActor *self);
void clutter_actor_paint (ClutterActor *self);
void clutter_actor_continue_paint (ClutterActor *self);
void clutter_actor_queue_redraw (ClutterActor *self);
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void clutter_actor_queue_redraw_with_clip (ClutterActor *self,
const cairo_rectangle_int_t *clip);
void clutter_actor_queue_relayout (ClutterActor *self);
void clutter_actor_destroy (ClutterActor *self);
void clutter_actor_set_name (ClutterActor *self,
const gchar *name);
const gchar * clutter_actor_get_name (ClutterActor *self);
AtkObject * clutter_actor_get_accessible (ClutterActor *self);
/* Size negotiation */
void clutter_actor_set_request_mode (ClutterActor *self,
ClutterRequestMode mode);
ClutterRequestMode clutter_actor_get_request_mode (ClutterActor *self);
void clutter_actor_get_preferred_width (ClutterActor *self,
gfloat for_height,
gfloat *min_width_p,
gfloat *natural_width_p);
void clutter_actor_get_preferred_height (ClutterActor *self,
gfloat for_width,
gfloat *min_height_p,
gfloat *natural_height_p);
void clutter_actor_get_preferred_size (ClutterActor *self,
gfloat *min_width_p,
gfloat *min_height_p,
gfloat *natural_width_p,
gfloat *natural_height_p);
void clutter_actor_allocate (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags);
void clutter_actor_allocate_preferred_size (ClutterActor *self,
ClutterAllocationFlags flags);
void clutter_actor_allocate_available_size (ClutterActor *self,
gfloat x,
gfloat y,
gfloat available_width,
gfloat available_height,
ClutterAllocationFlags flags);
void clutter_actor_allocate_align_fill (ClutterActor *self,
const ClutterActorBox *box,
gdouble x_align,
gdouble y_align,
gboolean x_fill,
gboolean y_fill,
ClutterAllocationFlags flags);
void clutter_actor_set_allocation (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags);
void clutter_actor_get_allocation_box (ClutterActor *self,
ClutterActorBox *box);
void clutter_actor_get_allocation_geometry (ClutterActor *self,
ClutterGeometry *geom);
void clutter_actor_get_allocation_vertices (ClutterActor *self,
ClutterActor *ancestor,
ClutterVertex verts[]);
gboolean clutter_actor_has_allocation (ClutterActor *self);
void clutter_actor_set_size (ClutterActor *self,
gfloat width,
gfloat height);
void clutter_actor_get_size (ClutterActor *self,
gfloat *width,
gfloat *height);
void clutter_actor_set_position (ClutterActor *self,
gfloat x,
gfloat y);
void clutter_actor_get_position (ClutterActor *self,
gfloat *x,
gfloat *y);
gboolean clutter_actor_get_fixed_position_set (ClutterActor *self);
void clutter_actor_set_fixed_position_set (ClutterActor *self,
gboolean is_set);
void clutter_actor_move_by (ClutterActor *self,
gfloat dx,
gfloat dy);
/* Actor geometry */
gfloat clutter_actor_get_width (ClutterActor *self);
gfloat clutter_actor_get_height (ClutterActor *self);
void clutter_actor_set_width (ClutterActor *self,
gfloat width);
void clutter_actor_set_height (ClutterActor *self,
gfloat height);
gfloat clutter_actor_get_x (ClutterActor *self);
gfloat clutter_actor_get_y (ClutterActor *self);
void clutter_actor_set_x (ClutterActor *self,
gfloat x);
void clutter_actor_set_y (ClutterActor *self,
gfloat y);
void clutter_actor_set_depth (ClutterActor *self,
gfloat depth);
gfloat clutter_actor_get_depth (ClutterActor *self);
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void clutter_actor_set_layout_manager (ClutterActor *self,
ClutterLayoutManager *manager);
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ClutterLayoutManager * clutter_actor_get_layout_manager (ClutterActor *self);
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void clutter_actor_set_x_align (ClutterActor *self,
ClutterActorAlign x_align);
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ClutterActorAlign clutter_actor_get_x_align (ClutterActor *self);
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void clutter_actor_set_y_align (ClutterActor *self,
ClutterActorAlign y_align);
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ClutterActorAlign clutter_actor_get_y_align (ClutterActor *self);
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void clutter_actor_set_margin_top (ClutterActor *self,
gfloat margin);
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gfloat clutter_actor_get_margin_top (ClutterActor *self);
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void clutter_actor_set_margin_bottom (ClutterActor *self,
gfloat margin);
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gfloat clutter_actor_get_margin_bottom (ClutterActor *self);
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void clutter_actor_set_margin_left (ClutterActor *self,
gfloat margin);
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gfloat clutter_actor_get_margin_left (ClutterActor *self);
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void clutter_actor_set_margin_right (ClutterActor *self,
gfloat margin);
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gfloat clutter_actor_get_margin_right (ClutterActor *self);
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void clutter_actor_set_margin (ClutterActor *self,
const ClutterMargin *margin);
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void clutter_actor_get_margin (ClutterActor *self,
ClutterMargin *margin);
/* Paint */
void clutter_actor_set_clip (ClutterActor *self,
gfloat xoff,
gfloat yoff,
gfloat width,
gfloat height);
void clutter_actor_remove_clip (ClutterActor *self);
gboolean clutter_actor_has_clip (ClutterActor *self);
void clutter_actor_get_clip (ClutterActor *self,
gfloat *xoff,
gfloat *yoff,
gfloat *width,
gfloat *height);
void clutter_actor_set_clip_to_allocation (ClutterActor *self,
gboolean clip_set);
gboolean clutter_actor_get_clip_to_allocation (ClutterActor *self);
void clutter_actor_set_opacity (ClutterActor *self,
guint8 opacity);
guint8 clutter_actor_get_opacity (ClutterActor *self);
guint8 clutter_actor_get_paint_opacity (ClutterActor *self);
gboolean clutter_actor_get_paint_visibility (ClutterActor *self);
void clutter_actor_set_offscreen_redirect (ClutterActor *self,
ClutterOffscreenRedirect redirect);
ClutterOffscreenRedirect clutter_actor_get_offscreen_redirect (ClutterActor *self);
gboolean clutter_actor_should_pick_paint (ClutterActor *self);
gboolean clutter_actor_is_in_clone_paint (ClutterActor *self);
gboolean clutter_actor_get_paint_box (ClutterActor *self,
ClutterActorBox *box);
gboolean clutter_actor_has_overlaps (ClutterActor *self);
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void clutter_actor_set_background_color (ClutterActor *self,
const ClutterColor *color);
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void clutter_actor_get_background_color (ClutterActor *self,
ClutterColor *color);
const ClutterPaintVolume * clutter_actor_get_paint_volume (ClutterActor *self);
const ClutterPaintVolume * clutter_actor_get_transformed_paint_volume (ClutterActor *self,
ClutterActor *relative_to_ancestor);
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const ClutterPaintVolume * clutter_actor_get_default_paint_volume (ClutterActor *self);
/* Events */
void clutter_actor_set_reactive (ClutterActor *actor,
gboolean reactive);
gboolean clutter_actor_get_reactive (ClutterActor *actor);
gboolean clutter_actor_has_key_focus (ClutterActor *self);
void clutter_actor_grab_key_focus (ClutterActor *self);
gboolean clutter_actor_event (ClutterActor *actor,
ClutterEvent *event,
gboolean capture);
gboolean clutter_actor_has_pointer (ClutterActor *self);
/* Text */
PangoContext * clutter_actor_get_pango_context (ClutterActor *self);
PangoContext * clutter_actor_create_pango_context (ClutterActor *self);
PangoLayout * clutter_actor_create_pango_layout (ClutterActor *self,
const gchar *text);
void clutter_actor_set_text_direction (ClutterActor *self,
ClutterTextDirection text_dir);
ClutterTextDirection clutter_actor_get_text_direction (ClutterActor *self);
/* Actor hierarchy */
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void clutter_actor_add_child (ClutterActor *self,
ClutterActor *child);
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void clutter_actor_insert_child_at_index (ClutterActor *self,
ClutterActor *child,
gint index_);
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void clutter_actor_insert_child_above (ClutterActor *self,
ClutterActor *child,
ClutterActor *sibling);
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void clutter_actor_insert_child_below (ClutterActor *self,
ClutterActor *child,
ClutterActor *sibling);
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void clutter_actor_replace_child (ClutterActor *self,
ClutterActor *old_child,
ClutterActor *new_child);
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void clutter_actor_remove_child (ClutterActor *self,
ClutterActor *child);
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void clutter_actor_remove_all_children (ClutterActor *self);
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void clutter_actor_destroy_all_children (ClutterActor *self);
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GList * clutter_actor_get_children (ClutterActor *self);
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gint clutter_actor_get_n_children (ClutterActor *self);
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ClutterActor * clutter_actor_get_child_at_index (ClutterActor *self,
gint index_);
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ClutterActor * clutter_actor_get_previous_sibling (ClutterActor *self);
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ClutterActor * clutter_actor_get_next_sibling (ClutterActor *self);
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ClutterActor * clutter_actor_get_first_child (ClutterActor *self);
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ClutterActor * clutter_actor_get_last_child (ClutterActor *self);
ClutterActor * clutter_actor_get_parent (ClutterActor *self);
gboolean clutter_actor_contains (ClutterActor *self,
ClutterActor *descendant);
ClutterActor* clutter_actor_get_stage (ClutterActor *actor);
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void clutter_actor_set_child_below_sibling (ClutterActor *self,
ClutterActor *child,
ClutterActor *sibling);
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void clutter_actor_set_child_above_sibling (ClutterActor *self,
ClutterActor *child,
ClutterActor *sibling);
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void clutter_actor_set_child_at_index (ClutterActor *self,
ClutterActor *child,
gint index_);
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void clutter_actor_iter_init (ClutterActorIter *iter,
ClutterActor *root);
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gboolean clutter_actor_iter_next (ClutterActorIter *iter,
ClutterActor **child);
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gboolean clutter_actor_iter_prev (ClutterActorIter *iter,
ClutterActor **child);
CLUTTER_AVAILABLE_IN_1_10
void clutter_actor_iter_remove (ClutterActorIter *iter);
CLUTTER_AVAILABLE_IN_1_10
void clutter_actor_iter_destroy (ClutterActorIter *iter);
/* Transformations */
gboolean clutter_actor_is_rotated (ClutterActor *self);
gboolean clutter_actor_is_scaled (ClutterActor *self);
void clutter_actor_set_rotation (ClutterActor *self,
ClutterRotateAxis axis,
gdouble angle,
gfloat x,
gfloat y,
gfloat z);
void clutter_actor_set_z_rotation_from_gravity (ClutterActor *self,
gdouble angle,
ClutterGravity gravity);
gdouble clutter_actor_get_rotation (ClutterActor *self,
ClutterRotateAxis axis,
gfloat *x,
gfloat *y,
gfloat *z);
ClutterGravity clutter_actor_get_z_rotation_gravity (ClutterActor *self);
void clutter_actor_set_scale (ClutterActor *self,
gdouble scale_x,
gdouble scale_y);
void clutter_actor_set_scale_full (ClutterActor *self,
gdouble scale_x,
gdouble scale_y,
gfloat center_x,
gfloat center_y);
void clutter_actor_set_scale_with_gravity (ClutterActor *self,
gdouble scale_x,
gdouble scale_y,
ClutterGravity gravity);
void clutter_actor_get_scale (ClutterActor *self,
gdouble *scale_x,
gdouble *scale_y);
void clutter_actor_get_scale_center (ClutterActor *self,
gfloat *center_x,
gfloat *center_y);
ClutterGravity clutter_actor_get_scale_gravity (ClutterActor *self);
void clutter_actor_set_anchor_point (ClutterActor *self,
gfloat anchor_x,
gfloat anchor_y);
void clutter_actor_move_anchor_point (ClutterActor *self,
gfloat anchor_x,
gfloat anchor_y);
void clutter_actor_get_anchor_point (ClutterActor *self,
gfloat *anchor_x,
gfloat *anchor_y);
ClutterGravity clutter_actor_get_anchor_point_gravity (ClutterActor *self);
void clutter_actor_set_anchor_point_from_gravity (ClutterActor *self,
ClutterGravity gravity);
void clutter_actor_move_anchor_point_from_gravity (ClutterActor *self,
ClutterGravity gravity);
void clutter_actor_get_transformed_position (ClutterActor *self,
gfloat *x,
gfloat *y);
void clutter_actor_get_transformed_size (ClutterActor *self,
gfloat *width,
gfloat *height);
gboolean clutter_actor_transform_stage_point (ClutterActor *self,
gfloat x,
gfloat y,
gfloat *x_out,
gfloat *y_out);
void clutter_actor_get_abs_allocation_vertices (ClutterActor *self,
ClutterVertex verts[]);
void clutter_actor_apply_transform_to_point (ClutterActor *self,
const ClutterVertex *point,
ClutterVertex *vertex);
void clutter_actor_apply_relative_transform_to_point (ClutterActor *self,
ClutterActor *ancestor,
const ClutterVertex *point,
ClutterVertex *vertex);
void clutter_actor_get_transformation_matrix (ClutterActor *self,
CoglMatrix *matrix);
/* Implicit animations */
void clutter_actor_save_easing_state (ClutterActor *self);
void clutter_actor_restore_easing_state (ClutterActor *self);
void clutter_actor_set_easing_mode (ClutterActor *self,
ClutterAnimationMode mode);
ClutterAnimationMode clutter_actor_get_easing_mode (ClutterActor *self);
void clutter_actor_set_easing_duration (ClutterActor *self,
guint msecs);
guint clutter_actor_get_easing_duration (ClutterActor *self);
ClutterTransition * clutter_actor_get_transition (ClutterActor *self,
const char *name);
G_END_DECLS
#endif /* __CLUTTER_ACTOR_H__ */