brl/mutter
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
62f2961f8a
mutter/clutter/clutter-private.h
Emmanuele Bassi ee33357fd5 stage: Only clutter_stage_get_default() creates the default stage 
The introduction of the StageManager in 0.8 implied that the first Stage
instance to be created was automatically assigned the status of "default
stage". This was all well and good, since the default stage was created
behind the curtains by the initialization sequence.

Now that the initialization sequence does not create a default stage any
longer, it means that the first stage created using clutter_stage_new()
gets to be the default, and all special and warm and fuzzy - which also
means that the first stage created by clutter_stage_new() cannot be
destroyed or handled as any other stage. Whoopsie.

Let's go back to the old semantics: the stage created by the first
invocation of clutter_stage_get_default() is the default stage, and
nothing else can be set as default. One day we'll be able to break the
API and the whole default stage business will be a thing of the past.
2010-02-18 17:01:57 +00:00

326 lines
12 KiB
C
Raw Blame History

/*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _HAVE_CLUTTER_PRIVATE_H
#define _HAVE_CLUTTER_PRIVATE_H
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <math.h>
#include <glib.h>
#include "pango/cogl-pango.h"
#include "clutter-backend.h"
#include "clutter-device-manager.h"
#include "clutter-event.h"
#include "clutter-feature.h"
#include "clutter-id-pool.h"
#include "clutter-master-clock.h"
#include "clutter-stage-manager.h"
#include "clutter-stage-window.h"
#include "clutter-stage.h"
#include "clutter-timeline.h"
G_BEGIN_DECLS
typedef struct _ClutterMainContext ClutterMainContext;
typedef enum {
CLUTTER_ACTOR_UNUSED_FLAG = 0,
CLUTTER_ACTOR_IN_DESTRUCTION = 1 << 0,
CLUTTER_ACTOR_IS_TOPLEVEL = 1 << 1,
CLUTTER_ACTOR_IN_REPARENT = 1 << 2,
/* Used by the stage to indicate GL viewport / perspective etc needs
* (re)setting.
*/
CLUTTER_ACTOR_SYNC_MATRICES = 1 << 3,
/* Used to avoid recursion */
CLUTTER_ACTOR_IN_PAINT = 1 << 4,
/* Used to avoid recursion */
CLUTTER_ACTOR_IN_RELAYOUT = 1 << 5,
/* 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_STAGE_IN_RESIZE = 1 << 6,
/* a flag for internal children of Containers */
CLUTTER_ACTOR_INTERNAL_CHILD = 1 << 7
} ClutterPrivateFlags;
struct _ClutterInputDevice
{
GObject parent_instance;
gint id;
ClutterInputDeviceType device_type;
gchar *device_name;
/* the actor underneath the pointer */
ClutterActor *cursor_actor;
/* the actor that has a grab in place for the device */
ClutterActor *pointer_grab_actor;
/* the current click count */
gint click_count;
/* the stage the device is on */
ClutterStage *stage;
/* the current state */
gint current_x;
gint current_y;
guint32 current_time;
gint current_button_number;
ClutterModifierType current_state;
/* the previous state, used for click count generation */
gint previous_x;
gint previous_y;
guint32 previous_time;
gint previous_button_number;
ClutterModifierType previous_state;
};
struct _ClutterStageManager
{
GObject parent_instance;
GSList *stages;
};
struct _ClutterMainContext
{
ClutterBackend *backend; /* holds a pointer to the windowing
system backend */
GQueue *events_queue; /* the main event queue */
guint is_initialized : 1;
guint motion_events_per_actor : 1;/* set for enter/leave events */
guint defer_display_setup : 1;
guint options_parsed : 1;
GTimer *timer; /* Used for debugging scheduler */
ClutterPickMode pick_mode; /* Indicates pick render mode */
gint num_reactives; /* Num of reactive actors */
ClutterIDPool *id_pool; /* mapping between reused integer ids
* and actors
*/
guint frame_rate; /* Default FPS */
ClutterActor *pointer_grab_actor; /* The actor having the pointer grab
* (or NULL if there is no pointer grab
*/
ClutterActor *keyboard_grab_actor; /* The actor having the pointer grab
* (or NULL if there is no pointer
* grab)
*/
GSList *shaders; /* stack of overridden shaders */
ClutterActor *motion_last_actor;
/* fb bit masks for col<->id mapping in picking */
gint fb_r_mask, fb_g_mask, fb_b_mask;
gint fb_r_mask_used, fb_g_mask_used, fb_b_mask_used;
PangoContext *pango_context; /* Global Pango context */
CoglPangoFontMap *font_map; /* Global font map */
ClutterEvent *current_event;
guint32 last_event_time;
gulong redraw_count;
GList *repaint_funcs;
};
#define CLUTTER_CONTEXT() (_clutter_context_get_default ())
ClutterMainContext *_clutter_context_get_default (void);
gboolean _clutter_context_is_initialized (void);
PangoContext *_clutter_context_create_pango_context (ClutterMainContext *self);
PangoContext *_clutter_context_get_pango_context (ClutterMainContext *self);
#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_PARAM_READABLE \
G_PARAM_READABLE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB
#define CLUTTER_PARAM_WRITABLE \
G_PARAM_WRITABLE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB
#define CLUTTER_PARAM_READWRITE \
G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |G_PARAM_STATIC_BLURB
#define I_(str) (g_intern_static_string ((str)))
/* device manager */
void _clutter_device_manager_add_device (ClutterDeviceManager *device_manager,
ClutterInputDevice *device);
void _clutter_device_manager_remove_device (ClutterDeviceManager *device_manager,
ClutterInputDevice *device);
void _clutter_device_manager_update_devices (ClutterDeviceManager *device_manager);
/* input device */
void _clutter_input_device_set_coords (ClutterInputDevice *device,
gint x,
gint y);
void _clutter_input_device_set_state (ClutterInputDevice *device,
ClutterModifierType state);
void _clutter_input_device_set_time (ClutterInputDevice *device,
guint32 time_);
void _clutter_input_device_set_stage (ClutterInputDevice *device,
ClutterStage *stage);
void _clutter_input_device_set_actor (ClutterInputDevice *device,
ClutterActor *actor);
ClutterActor *_clutter_input_device_update (ClutterInputDevice *device);
/* stage manager */
void _clutter_stage_manager_add_stage (ClutterStageManager *stage_manager,
ClutterStage *stage);
void _clutter_stage_manager_remove_stage (ClutterStageManager *stage_manager,
ClutterStage *stage);
void _clutter_stage_manager_set_default_stage (ClutterStageManager *stage_manager,
ClutterStage *stage);
/* stage */
void _clutter_stage_set_window (ClutterStage *stage,
ClutterStageWindow *stage_window);
ClutterStageWindow *_clutter_stage_get_window (ClutterStage *stage);
ClutterStageWindow *_clutter_stage_get_default_window (void);
void _clutter_stage_maybe_setup_viewport (ClutterStage *stage);
void _clutter_stage_maybe_relayout (ClutterActor *stage);
gboolean _clutter_stage_needs_update (ClutterStage *stage);
gboolean _clutter_stage_do_update (ClutterStage *stage);
void _clutter_stage_queue_event (ClutterStage *stage,
ClutterEvent *event);
gboolean _clutter_stage_has_queued_events (ClutterStage *stage);
void _clutter_stage_process_queued_events (ClutterStage *stage);
void _clutter_stage_update_input_devices (ClutterStage *stage);
int _clutter_stage_get_pending_swaps (ClutterStage *stage);
/* vfuncs implemented by backend */
GType _clutter_backend_impl_get_type (void);
void _clutter_backend_redraw (ClutterBackend *backend,
ClutterStage *stage);
ClutterStageWindow *_clutter_backend_create_stage (ClutterBackend *backend,
ClutterStage *wrapper,
GError **error);
void _clutter_backend_ensure_context (ClutterBackend *backend,
ClutterStage *stage);
void _clutter_backend_ensure_context_internal
(ClutterBackend *backend,
ClutterStage *stage);
gboolean _clutter_backend_create_context (ClutterBackend *backend,
GError **error);
void _clutter_backend_add_options (ClutterBackend *backend,
GOptionGroup *group);
gboolean _clutter_backend_pre_parse (ClutterBackend *backend,
GError **error);
gboolean _clutter_backend_post_parse (ClutterBackend *backend,
GError **error);
void _clutter_backend_init_events (ClutterBackend *backend);
ClutterFeatureFlags _clutter_backend_get_features (ClutterBackend *backend);
gfloat _clutter_backend_get_units_per_em (ClutterBackend *backend,
PangoFontDescription *font_desc);
void _clutter_feature_init (void);
/* Reinjecting queued events for processing */
void _clutter_process_event (ClutterEvent *event);
/* Picking code */
ClutterActor *_clutter_do_pick (ClutterStage *stage,
gint x,
gint y,
ClutterPickMode mode);
/* the actual redraw */
void _clutter_do_redraw (ClutterStage *stage);
guint _clutter_pixel_to_id (guchar pixel[4]);
void _clutter_id_to_color (guint id, ClutterColor *col);
/* 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_actor_apply_modelview_transform_recursive (ClutterActor *self,
ClutterActor *ancestor);
void _clutter_actor_rerealize (ClutterActor *self,
ClutterCallback callback,
void *data);
void _clutter_actor_set_opacity_parent (ClutterActor *self,
ClutterActor *parent);
void _clutter_actor_set_enable_model_view_transform (ClutterActor *self,
gboolean enable);
void _clutter_actor_set_enable_paint_unmapped (ClutterActor *self,
gboolean enable);
void _clutter_actor_set_has_pointer (ClutterActor *self,
gboolean has_pointer);
void _clutter_run_repaint_functions (void);
gint32 _clutter_backend_get_units_serial (ClutterBackend *backend);
G_END_DECLS
#endif /* _HAVE_CLUTTER_PRIVATE_H */
Reference in New Issue View Git Blame Copy Permalink