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8d83dec044
ClutterStage is the one and only subclass of ClutterGroup, but it overrides basically everything specific to ClutterGroup to mimic a ClutterActor. What a waste! Subclass ClutterActor directly and remove all the now useless vfunc overrides from ClutterStage. Adapt CallyStage to subclass CallyActor as well. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1332
234 lines
9.0 KiB
C
234 lines
9.0 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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#ifndef __CLUTTER_STAGE_H__
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#define __CLUTTER_STAGE_H__
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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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#include <clutter/clutter-actor.h>
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#include <clutter/clutter-types.h>
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#include <clutter/clutter-stage-view.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_STAGE (clutter_stage_get_type())
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#define CLUTTER_STAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_STAGE, ClutterStage))
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#define CLUTTER_STAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_STAGE, ClutterStageClass))
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#define CLUTTER_IS_STAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_STAGE))
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#define CLUTTER_IS_STAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_STAGE))
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#define CLUTTER_STAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_STAGE, ClutterStageClass))
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typedef struct _ClutterStageClass ClutterStageClass;
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typedef struct _ClutterStagePrivate ClutterStagePrivate;
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/**
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* ClutterStage:
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*
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* The #ClutterStage structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 0.2
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*/
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struct _ClutterStage
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{
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/*< private >*/
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ClutterActor parent_instance;
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ClutterStagePrivate *priv;
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};
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/**
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* ClutterStageClass:
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* @activate: handler for the #ClutterStage::activate signal
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* @deactivate: handler for the #ClutterStage::deactivate signal
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* @delete_event: handler for the #ClutterStage::delete-event signal
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*
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* The #ClutterStageClass structure contains only private data
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*
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* Since: 0.2
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*/
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struct _ClutterStageClass
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{
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/*< private >*/
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ClutterActorClass parent_class;
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/*< public >*/
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/* signals */
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void (* activate) (ClutterStage *stage);
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void (* deactivate) (ClutterStage *stage);
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gboolean (* delete_event) (ClutterStage *stage,
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ClutterEvent *event);
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void (* paint_view) (ClutterStage *stage,
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ClutterStageView *view,
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const cairo_region_t *redraw_clip);
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/*< private >*/
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/* padding for future expansion */
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gpointer _padding_dummy[30];
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};
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/**
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* ClutterPerspective:
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* @fovy: the field of view angle, in degrees, in the y direction
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* @aspect: the aspect ratio that determines the field of view in the x
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* direction. The aspect ratio is the ratio of x (width) to y (height)
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* @z_near: the distance from the viewer to the near clipping
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* plane (always positive)
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* @z_far: the distance from the viewer to the far clipping
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* plane (always positive)
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*
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* Stage perspective definition.
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*
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* Since: 0.4
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*/
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struct _ClutterPerspective
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{
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gfloat fovy;
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gfloat aspect;
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gfloat z_near;
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gfloat z_far;
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};
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/**
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* ClutterFrameInfo: (skip)
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*/
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struct _ClutterFrameInfo
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{
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int64_t frame_counter;
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int64_t presentation_time;
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float refresh_rate;
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};
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typedef struct _ClutterCapture
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{
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cairo_surface_t *image;
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cairo_rectangle_int_t rect;
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} ClutterCapture;
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CLUTTER_EXPORT
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GType clutter_perspective_get_type (void) G_GNUC_CONST;
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CLUTTER_EXPORT
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GType clutter_stage_get_type (void) G_GNUC_CONST;
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CLUTTER_EXPORT
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ClutterActor * clutter_stage_new (void);
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CLUTTER_EXPORT
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void clutter_stage_get_perspective (ClutterStage *stage,
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ClutterPerspective *perspective);
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CLUTTER_EXPORT
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void clutter_stage_set_title (ClutterStage *stage,
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const gchar *title);
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CLUTTER_EXPORT
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const gchar * clutter_stage_get_title (ClutterStage *stage);
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CLUTTER_EXPORT
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void clutter_stage_set_minimum_size (ClutterStage *stage,
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guint width,
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guint height);
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CLUTTER_EXPORT
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void clutter_stage_get_minimum_size (ClutterStage *stage,
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guint *width,
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guint *height);
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CLUTTER_EXPORT
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void clutter_stage_set_use_alpha (ClutterStage *stage,
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gboolean use_alpha);
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CLUTTER_EXPORT
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gboolean clutter_stage_get_use_alpha (ClutterStage *stage);
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CLUTTER_EXPORT
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void clutter_stage_set_key_focus (ClutterStage *stage,
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ClutterActor *actor);
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CLUTTER_EXPORT
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ClutterActor * clutter_stage_get_key_focus (ClutterStage *stage);
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CLUTTER_EXPORT
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void clutter_stage_set_throttle_motion_events (ClutterStage *stage,
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gboolean throttle);
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CLUTTER_EXPORT
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gboolean clutter_stage_get_throttle_motion_events (ClutterStage *stage);
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CLUTTER_EXPORT
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void clutter_stage_set_motion_events_enabled (ClutterStage *stage,
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gboolean enabled);
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CLUTTER_EXPORT
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gboolean clutter_stage_get_motion_events_enabled (ClutterStage *stage);
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CLUTTER_EXPORT
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gboolean clutter_stage_event (ClutterStage *stage,
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ClutterEvent *event);
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CLUTTER_EXPORT
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ClutterActor * clutter_stage_get_actor_at_pos (ClutterStage *stage,
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ClutterPickMode pick_mode,
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float x,
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float y);
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CLUTTER_EXPORT
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guchar * clutter_stage_read_pixels (ClutterStage *stage,
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gint x,
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gint y,
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gint width,
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gint height);
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CLUTTER_EXPORT
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void clutter_stage_ensure_viewport (ClutterStage *stage);
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CLUTTER_EXPORT
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gboolean clutter_stage_is_redraw_queued (ClutterStage *stage);
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#ifdef CLUTTER_ENABLE_EXPERIMENTAL_API
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CLUTTER_EXPORT
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void clutter_stage_set_sync_delay (ClutterStage *stage,
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gint sync_delay);
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CLUTTER_EXPORT
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void clutter_stage_skip_sync_delay (ClutterStage *stage);
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#endif
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CLUTTER_EXPORT
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void clutter_stage_schedule_update (ClutterStage *stage);
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CLUTTER_EXPORT
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gboolean clutter_stage_get_capture_final_size (ClutterStage *stage,
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cairo_rectangle_int_t *rect,
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int *width,
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int *height,
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float *scale);
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CLUTTER_EXPORT
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gboolean clutter_stage_capture (ClutterStage *stage,
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gboolean paint,
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cairo_rectangle_int_t *rect,
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ClutterCapture **out_captures,
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int *out_n_captures);
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CLUTTER_EXPORT
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ClutterStageView * clutter_stage_get_view_at (ClutterStage *stage,
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float x,
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float y);
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G_END_DECLS
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#endif /* __CLUTTER_STAGE_H__ */
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