mutter/clutter/clutter-private.h

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* 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/>.
*
*
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*/
#ifndef __CLUTTER_PRIVATE_H__
#define __CLUTTER_PRIVATE_H__
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#include <glib.h>
#include <glib/gi18n-lib.h>
#include <cogl-pango/cogl-pango.h>
2007-03-22 Emmanuele Bassi <ebassi@openedhand.com> * clutter/clutter-private.h: Remove inclusion of backend-specific headers; update the main context object; add the declarations for the event queue functions. * clutter/clutter-backend.[ch]: Add the abstract ClutterBackend object, which holds backend-specific settings, the main stage, and the event queue. Every backend must implement a subclass of ClutterBackend and ClutterStage. * clutter/clutter-feature.c: Protect the GLX specific calls behing #ifdef HAVE_CLUTTER_GLX. * clutter/clutter-actor.c: * clutter/clutter-group.c: * clutter/clutter-clone-texture.c: Include GL/gl.h * clutter/clutter-event.[ch]: Update public API and implement the event queue private API; hold a reference on the event objects; move out the keysym-to-unicode table; add the new event types. * clutter/clutter-color.h: Include clutter-fixed.h * clutter/clutter-main.c: Update API; get the main stage from the backend object; process the event received from the queue; lock/unlock the main mutex if we have one; move the initialisation process sooner in the init sequence, in order to have the backend object when we check for options; call the backed vfuncs in the pre/post parse hooks. * clutter/clutter-stage.c: Make ClutterStage and abstract class, implemented by the backends. * clutter/clutter/glx/clutter-glx.h: * clutter/clutter/glx/clutter-backend-glx.[ch]: * clutter/clutter/glx/clutter-event-glx.c: * clutter/clutter/glx/clutter-stage-glx.[ch]: * clutter/clutter/glx/Makefile.am: Add the GLX backend. * clutter/clutter/egl/clutter-backend-egl.[ch]: * clutter/clutter/egl/clutter-event-egl.c: * clutter/clutter/egl/clutter-stage-egl.[ch]: * clutter/clutter/egl/Makefile.am: Add the stub for a EGL backend. * examples/*.c: Update for the new API.
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#include "clutter-backend.h"
#include "clutter-effect.h"
#include "clutter-event.h"
#include "clutter-feature.h"
#include "clutter-id-pool.h"
#include "clutter-layout-manager.h"
#include "clutter-master-clock.h"
#include "clutter-settings.h"
#include "clutter-stage-manager.h"
#include "clutter-stage.h"
2007-03-22 Emmanuele Bassi <ebassi@openedhand.com> * clutter/clutter-private.h: Remove inclusion of backend-specific headers; update the main context object; add the declarations for the event queue functions. * clutter/clutter-backend.[ch]: Add the abstract ClutterBackend object, which holds backend-specific settings, the main stage, and the event queue. Every backend must implement a subclass of ClutterBackend and ClutterStage. * clutter/clutter-feature.c: Protect the GLX specific calls behing #ifdef HAVE_CLUTTER_GLX. * clutter/clutter-actor.c: * clutter/clutter-group.c: * clutter/clutter-clone-texture.c: Include GL/gl.h * clutter/clutter-event.[ch]: Update public API and implement the event queue private API; hold a reference on the event objects; move out the keysym-to-unicode table; add the new event types. * clutter/clutter-color.h: Include clutter-fixed.h * clutter/clutter-main.c: Update API; get the main stage from the backend object; process the event received from the queue; lock/unlock the main mutex if we have one; move the initialisation process sooner in the init sequence, in order to have the backend object when we check for options; call the backed vfuncs in the pre/post parse hooks. * clutter/clutter-stage.c: Make ClutterStage and abstract class, implemented by the backends. * clutter/clutter/glx/clutter-glx.h: * clutter/clutter/glx/clutter-backend-glx.[ch]: * clutter/clutter/glx/clutter-event-glx.c: * clutter/clutter/glx/clutter-stage-glx.[ch]: * clutter/clutter/glx/Makefile.am: Add the GLX backend. * clutter/clutter/egl/clutter-backend-egl.[ch]: * clutter/clutter/egl/clutter-event-egl.c: * clutter/clutter/egl/clutter-stage-egl.[ch]: * clutter/clutter/egl/Makefile.am: Add the stub for a EGL backend. * examples/*.c: Update for the new API.
2007-03-22 14:21:59 -04:00
2006-07-06 Emmanuele Bassi <ebassi@openedhand.com> Big rework of the actor management semantics: now ClutterActor objects behave like GtkObjects - that is they have an initial "floating" reference that gets "sunk" when they are added to a ClutterGroup. This makes a group responsible of de-allocating each actor inside it, so you just have to destroy the group to get every child actor destroyed. Also, now you can do: clutter_group_add (group, clutter_video_texture_new ()); without having to care about reference counting and explicit unreffing. * clutter/clutter-private.h: Add private flags setter and getter macros. * clutter/clutter-actor.h: * clutter/clutter-actor.c: Clean up; inherit from GInitiallyUnowned; add a "visible" property; add the "destroy", "show" and "hide" signals to ClutterActorClass. (clutter_actor_show), (clutter_actor_hide): Refactor a bit; emit the "show" and "hide" signals. (clutter_actor_set_property), (clutter_actor_get_property), (clutter_actor_class_init): Implement the "visible" property; add signals. (clutter_actor_finalize): Do not leak the actor's name, if it is set. (clutter_actor_dispose): Emit the "destroy" signal here. (clutter_actor_init): Sink the initial floating flag if needed. (clutter_actor_destroy): Add a function to explicitely destroy a ClutterActor. (clutter_actor_set_parent), (clutter_actor_get_parent), (clutter_actor_unparent): Make set_parent require a valid parent; add unparent; check on get_parent; ref_sink the actor when setting its parent and unref it when unsetting it. Probably we'll need a function that does reparenting as unparent+set_parent in a single shot. * clutter/clutter-group.h: * clutter/clutter-group.c (clutter_group_dispose), (clutter_group_finalize), (clutter_group_add), (clutter_group_remove): Make the group destroy its children when disposing it; clean up, and use the newly-available clutter_actor_unparent(). * clutter/clutter-stage.h: * clutter/clutter-stage.c (clutter_stage_init): ClutterStage is a top-level actor; clean up. * clutter/clutter-video-texture.h: * clutter/clutter-video-texture.c: Clean up. * examples/super-oh.c: * examples/test.c: * examples/video-player.c: * examples/test-text.c: * examples/video-cube.c: Remove the g_object_unref() call, as the ClutterStage object is destroyed on clutter_main_quit().
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G_BEGIN_DECLS
typedef struct _ClutterMainContext ClutterMainContext;
#define CLUTTER_REGISTER_VALUE_TRANSFORM_TO(TYPE_TO,func) { \
g_value_register_transform_func (g_define_type_id, TYPE_TO, func); \
}
#define CLUTTER_REGISTER_VALUE_TRANSFORM_FROM(TYPE_FROM,func) { \
g_value_register_transform_func (TYPE_FROM, g_define_type_id, func); \
}
#define CLUTTER_REGISTER_INTERVAL_PROGRESS(func) { \
clutter_interval_register_progress_func (g_define_type_id, func); \
}
#define CLUTTER_PRIVATE_FLAGS(a) (((ClutterActor *) (a))->private_flags)
#define CLUTTER_SET_PRIVATE_FLAGS(a,f) (CLUTTER_PRIVATE_FLAGS (a) |= (f))
#define CLUTTER_UNSET_PRIVATE_FLAGS(a,f) (CLUTTER_PRIVATE_FLAGS (a) &= ~(f))
#define CLUTTER_ACTOR_IS_TOPLEVEL(a) ((CLUTTER_PRIVATE_FLAGS (a) & CLUTTER_IS_TOPLEVEL) != FALSE)
#define CLUTTER_ACTOR_IS_INTERNAL_CHILD(a) ((CLUTTER_PRIVATE_FLAGS (a) & CLUTTER_INTERNAL_CHILD) != FALSE)
#define CLUTTER_ACTOR_IN_DESTRUCTION(a) ((CLUTTER_PRIVATE_FLAGS (a) & CLUTTER_IN_DESTRUCTION) != FALSE)
#define CLUTTER_ACTOR_IN_REPARENT(a) ((CLUTTER_PRIVATE_FLAGS (a) & CLUTTER_IN_REPARENT) != FALSE)
#define CLUTTER_ACTOR_IN_PAINT(a) ((CLUTTER_PRIVATE_FLAGS (a) & CLUTTER_IN_PAINT) != FALSE)
#define CLUTTER_ACTOR_IN_RELAYOUT(a) ((CLUTTER_PRIVATE_FLAGS (a) & CLUTTER_IN_RELAYOUT) != FALSE)
#define CLUTTER_STAGE_IN_RESIZE(a) ((CLUTTER_PRIVATE_FLAGS (a) & CLUTTER_IN_RESIZE) != FALSE)
#define CLUTTER_PARAM_READABLE (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)
#define CLUTTER_PARAM_WRITABLE (G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS)
#define CLUTTER_PARAM_READWRITE (G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS)
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.
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#define CLUTTER_PARAM_ANIMATABLE (1 << G_PARAM_USER_SHIFT)
/* automagic interning of a static string */
#define I_(str) (g_intern_static_string ((str)))
/* mark all properties under the "Property" context */
#ifdef ENABLE_NLS
#define P_(String) (_clutter_gettext ((String)))
#else
#define P_(String) (String)
#endif
/* This is a replacement for the nearbyint function which always rounds to the
* nearest integer. nearbyint is apparently a C99 function so it might not
* always be available but also it seems in glibc it is defined as a function
* call so this macro could end up faster anyway. We can't just add 0.5f
* because it will break for negative numbers. */
#define CLUTTER_NEARBYINT(x) ((int) ((x) < 0.0f ? (x) - 0.5f : (x) + 0.5f))
typedef enum {
CLUTTER_ACTOR_UNUSED_FLAG = 0,
CLUTTER_IN_DESTRUCTION = 1 << 0,
CLUTTER_IS_TOPLEVEL = 1 << 1,
CLUTTER_IN_REPARENT = 1 << 2,
/* Used to avoid recursion */
CLUTTER_IN_PAINT = 1 << 3,
/* Used to avoid recursion */
CLUTTER_IN_RELAYOUT = 1 << 4,
/* Used by the stage if resizing is an asynchronous operation (like on
* X11) to delay queueing relayouts until we got a notification from the
* event handling
*/
CLUTTER_IN_RESIZE = 1 << 5,
/* a flag for internal children of Containers */
CLUTTER_INTERNAL_CHILD = 1 << 6
} ClutterPrivateFlags;
/*
* ClutterMainContext:
*
* The shared state of Clutter
*/
2006-06-05 Emmanuele Bassi <ebassi@openedhand.com> * clutter-color.h: * clutter-color.c: Reimplement ClutterColor as a boxed type; add convenience API for color handling, like: add, subtract, shade, HSL color-space conversion, packing and unpacking. * clutter-private.h: Update ClutterMainContext, and export the main context pointer here. * clutter-rectangle.h: * clutter-rectangle.c: Update the color-related code; make clutter_rectangle_new() and empty constructor and provide clutter_rectangle_new_with_color(); provide color setter and getter API. * clutter-label.h: * clutter-label.c: Rename the "font" property to "font-name"; update the color-related code to the new ClutterColor object; rename clutter_label_new() to clutter_label_new_with_text(), and add setters and getters for the properties. * clutter-marshal.list: Add VOID:OBJECT and VOID:BOXED marshallers generators. * clutter-stage.h: * clutter-stage.c: Rework the API: provide a default constructor for a singleton object, named clutter_stage_get_default(), which supercedes the clutter_stage() function in clutter-main; provide new events: button-press-event, button-release-event, key-press-event and key-release-event; update the color-related code; (clutter_stage_snapshot): Allow negative width and height when taking a snapshot (meaning: use full width/height). (clutter_stage_get_element_at_pos): Rename clutter_stage_pick(). * clutter-element.c (clutter_element_paint): Clean up the stage and color related code. * clutter-event.h: * clutter-event.c: Add generic ClutterAnyEvent type; add clutter_event_new(), clutter_event_copy() and clutter_event_free(); make ClutterEvent a boxed type. * clutter-main.h: * clutter-main.c: Remove clutter_stage(); add clutter_main_quit(), for cleanly quitting from clutter_main(); add multiple mainloops support; allocate the ClutterCntx instead of adding it to the stack; re-work the ClutterEvent dispatching. * clutter-group.c (clutter_group_add), (clutter_group_remove): Keep a reference on the element when added to a ClutterGroup. * examples/rects.py * examples/test.c: * examples/test-text.c: * examples/video-cube.c: * examples/super-oh.c: * examples/test-video.c: Update.
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struct _ClutterMainContext
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{
/* the main windowing system backend */
ClutterBackend *backend;
/* the object holding all the stage instances */
ClutterStageManager *stage_manager;
/* the clock driving all the frame operations */
ClutterMasterClock *master_clock;
/* the main event queue */
GQueue *events_queue;
ClutterPickMode pick_mode;
/* mapping between reused integer ids and actors */
ClutterIDPool *id_pool;
/* default FPS; this is only used if we cannot sync to vblank */
guint frame_rate;
/* actors with a grab on all devices */
ClutterActor *pointer_grab_actor;
ClutterActor *keyboard_grab_actor;
/* stack of actors with shaders during paint */
GSList *shaders;
/* fb bit masks for col<->id mapping in picking */
gint fb_r_mask;
gint fb_g_mask;
gint fb_b_mask;
gint fb_r_mask_used;
gint fb_g_mask_used;
gint fb_b_mask_used;
PangoContext *pango_context; /* Global Pango context */
CoglPangoFontMap *font_map; /* Global font map */
ClutterEvent *current_event;
guint32 last_event_time;
/* list of repaint functions installed through
* clutter_threads_add_repaint_func()
*/
GList *repaint_funcs;
guint last_repaint_id;
/* main settings singleton */
ClutterSettings *settings;
/* boolean flags */
guint is_initialized : 1;
guint motion_events_per_actor : 1;
guint defer_display_setup : 1;
guint options_parsed : 1;
guint show_fps : 1;
2006-06-05 Emmanuele Bassi <ebassi@openedhand.com> * clutter-color.h: * clutter-color.c: Reimplement ClutterColor as a boxed type; add convenience API for color handling, like: add, subtract, shade, HSL color-space conversion, packing and unpacking. * clutter-private.h: Update ClutterMainContext, and export the main context pointer here. * clutter-rectangle.h: * clutter-rectangle.c: Update the color-related code; make clutter_rectangle_new() and empty constructor and provide clutter_rectangle_new_with_color(); provide color setter and getter API. * clutter-label.h: * clutter-label.c: Rename the "font" property to "font-name"; update the color-related code to the new ClutterColor object; rename clutter_label_new() to clutter_label_new_with_text(), and add setters and getters for the properties. * clutter-marshal.list: Add VOID:OBJECT and VOID:BOXED marshallers generators. * clutter-stage.h: * clutter-stage.c: Rework the API: provide a default constructor for a singleton object, named clutter_stage_get_default(), which supercedes the clutter_stage() function in clutter-main; provide new events: button-press-event, button-release-event, key-press-event and key-release-event; update the color-related code; (clutter_stage_snapshot): Allow negative width and height when taking a snapshot (meaning: use full width/height). (clutter_stage_get_element_at_pos): Rename clutter_stage_pick(). * clutter-element.c (clutter_element_paint): Clean up the stage and color related code. * clutter-event.h: * clutter-event.c: Add generic ClutterAnyEvent type; add clutter_event_new(), clutter_event_copy() and clutter_event_free(); make ClutterEvent a boxed type. * clutter-main.h: * clutter-main.c: Remove clutter_stage(); add clutter_main_quit(), for cleanly quitting from clutter_main(); add multiple mainloops support; allocate the ClutterCntx instead of adding it to the stack; re-work the ClutterEvent dispatching. * clutter-group.c (clutter_group_add), (clutter_group_remove): Keep a reference on the element when added to a ClutterGroup. * examples/rects.py * examples/test.c: * examples/test-text.c: * examples/video-cube.c: * examples/super-oh.c: * examples/test-video.c: Update.
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};
/* shared between clutter-main.c and clutter-frame-source.c */
typedef struct
{
GSourceFunc func;
gpointer data;
GDestroyNotify notify;
} ClutterThreadsDispatch;
gboolean _clutter_threads_dispatch (gpointer data);
void _clutter_threads_dispatch_free (gpointer data);
void _clutter_threads_acquire_lock (void);
void _clutter_threads_release_lock (void);
ClutterMainContext * _clutter_context_get_default (void);
void _clutter_context_lock (void);
void _clutter_context_unlock (void);
gboolean _clutter_context_is_initialized (void);
PangoContext * _clutter_context_create_pango_context (void);
PangoContext * _clutter_context_get_pango_context (void);
ClutterPickMode _clutter_context_get_pick_mode (void);
void _clutter_context_push_shader_stack (ClutterActor *actor);
ClutterActor * _clutter_context_pop_shader_stack (ClutterActor *actor);
ClutterActor * _clutter_context_peek_shader_stack (void);
guint32 _clutter_context_acquire_id (gpointer key);
void _clutter_context_release_id (guint32 id_);
gboolean _clutter_context_get_motion_events_enabled (void);
gboolean _clutter_context_get_show_fps (void);
const gchar *_clutter_gettext (const gchar *str);
gboolean _clutter_feature_init (GError **error);
/* Diagnostic mode */
gboolean _clutter_diagnostic_enabled (void);
void _clutter_diagnostic_message (const char *fmt, ...);
/* Picking code */
guint _clutter_pixel_to_id (guchar pixel[4]);
void _clutter_id_to_color (guint id,
ClutterColor *col);
ClutterActor * _clutter_get_actor_by_id (ClutterStage *stage,
guint32 actor_id);
gboolean _clutter_get_sync_to_vblank (void);
/* use this function as the accumulator if you have a signal with
* a G_TYPE_BOOLEAN return value; this will stop the emission as
* soon as one handler returns TRUE
*/
gboolean _clutter_boolean_handled_accumulator (GSignalInvocationHint *ihint,
GValue *return_accu,
const GValue *handler_return,
gpointer dummy);
void _clutter_run_repaint_functions (ClutterRepaintFlags flags);
void _clutter_constraint_update_allocation (ClutterConstraint *constraint,
ClutterActor *actor,
ClutterActorBox *allocation);
GType _clutter_layout_manager_get_child_meta_type (ClutterLayoutManager *manager);
void _clutter_util_fully_transform_vertices (const CoglMatrix *modelview,
const CoglMatrix *projection,
const float *viewport,
const ClutterVertex *vertices_in,
ClutterVertex *vertices_out,
int n_vertices);
void _clutter_util_rectangle_union (const cairo_rectangle_int_t *src1,
const cairo_rectangle_int_t *src2,
cairo_rectangle_int_t *dest);
typedef struct _ClutterPlane
{
float v0[3];
float n[3];
} ClutterPlane;
typedef enum _ClutterCullResult
{
CLUTTER_CULL_RESULT_UNKNOWN,
CLUTTER_CULL_RESULT_IN,
CLUTTER_CULL_RESULT_OUT,
CLUTTER_CULL_RESULT_PARTIAL
} ClutterCullResult;
gboolean _clutter_has_progress_function (GType gtype);
gboolean _clutter_run_progress_function (GType gtype,
const GValue *initial,
const GValue *final,
gdouble progress,
GValue *retval);
2006-07-06 Emmanuele Bassi <ebassi@openedhand.com> Big rework of the actor management semantics: now ClutterActor objects behave like GtkObjects - that is they have an initial "floating" reference that gets "sunk" when they are added to a ClutterGroup. This makes a group responsible of de-allocating each actor inside it, so you just have to destroy the group to get every child actor destroyed. Also, now you can do: clutter_group_add (group, clutter_video_texture_new ()); without having to care about reference counting and explicit unreffing. * clutter/clutter-private.h: Add private flags setter and getter macros. * clutter/clutter-actor.h: * clutter/clutter-actor.c: Clean up; inherit from GInitiallyUnowned; add a "visible" property; add the "destroy", "show" and "hide" signals to ClutterActorClass. (clutter_actor_show), (clutter_actor_hide): Refactor a bit; emit the "show" and "hide" signals. (clutter_actor_set_property), (clutter_actor_get_property), (clutter_actor_class_init): Implement the "visible" property; add signals. (clutter_actor_finalize): Do not leak the actor's name, if it is set. (clutter_actor_dispose): Emit the "destroy" signal here. (clutter_actor_init): Sink the initial floating flag if needed. (clutter_actor_destroy): Add a function to explicitely destroy a ClutterActor. (clutter_actor_set_parent), (clutter_actor_get_parent), (clutter_actor_unparent): Make set_parent require a valid parent; add unparent; check on get_parent; ref_sink the actor when setting its parent and unref it when unsetting it. Probably we'll need a function that does reparenting as unparent+set_parent in a single shot. * clutter/clutter-group.h: * clutter/clutter-group.c (clutter_group_dispose), (clutter_group_finalize), (clutter_group_add), (clutter_group_remove): Make the group destroy its children when disposing it; clean up, and use the newly-available clutter_actor_unparent(). * clutter/clutter-stage.h: * clutter/clutter-stage.c (clutter_stage_init): ClutterStage is a top-level actor; clean up. * clutter/clutter-video-texture.h: * clutter/clutter-video-texture.c: Clean up. * examples/super-oh.c: * examples/test.c: * examples/video-player.c: * examples/test-text.c: * examples/video-cube.c: Remove the g_object_unref() call, as the ClutterStage object is destroyed on clutter_main_quit().
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G_END_DECLS
#endif /* __CLUTTER_PRIVATE_H__ */