/*
* 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 __CLUTTER_STAGE_H__
#define __CLUTTER_STAGE_H__
#include <clutter/clutter-types.h>
#include <clutter/clutter-group.h>
#include <clutter/clutter-color.h>
#include <clutter/clutter-event.h>
#ifdef USE_GDKPIXBUF
#include <gdk-pixbuf/gdk-pixbuf.h>
#endif
G_BEGIN_DECLS
#define CLUTTER_TYPE_PERSPECTIVE (clutter_perspective_get_type ())
#define CLUTTER_TYPE_FOG (clutter_fog_get_type ())
#define CLUTTER_TYPE_STAGE (clutter_stage_get_type())
#define CLUTTER_STAGE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
CLUTTER_TYPE_STAGE, ClutterStage))
#define CLUTTER_STAGE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), \
CLUTTER_TYPE_STAGE, ClutterStageClass))
#define CLUTTER_IS_STAGE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
CLUTTER_TYPE_STAGE))
#define CLUTTER_IS_STAGE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), \
CLUTTER_TYPE_STAGE))
#define CLUTTER_STAGE_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), \
CLUTTER_TYPE_STAGE, ClutterStageClass))
/**
* CLUTTER_STAGE_WIDTH:
*
* Macro that evaluates to the current stage width
*
* Since: 0.2
*/
#define CLUTTER_STAGE_WIDTH() \
(clutter_actor_get_width (clutter_stage_get_default ()))
/**
* CLUTTER_STAGE_HEIGHT:
*
* Macro that evaluates to the current stage height
*
* Since: 0.2
*/
#define CLUTTER_STAGE_HEIGHT() \
(clutter_actor_get_height (clutter_stage_get_default ()))
typedef struct _ClutterPerspective ClutterPerspective;
typedef struct _ClutterFog ClutterFog;
typedef struct _ClutterStageClass ClutterStageClass;
typedef struct _ClutterStagePrivate ClutterStagePrivate;
struct _ClutterStage
{
/*< private >*/
ClutterGroup parent_instance;
ClutterStagePrivate *priv;
};
struct _ClutterStageClass
{
/*< private >*/
ClutterGroupClass parent_class;
/*< public >*/
/* signals */
void (* fullscreen) (ClutterStage *stage);
void (* unfullscreen) (ClutterStage *stage);
void (* activate) (ClutterStage *stage);
void (* deactivate) (ClutterStage *stage);
/*< private >*/
/* padding for future expansion */
gpointer _padding_dummy[32];
};
/**
* ClutterPerspective:
* @fovy: the field of view angle, in degrees, in the y direction
* @aspect: the aspect ratio that determines the field of view in the x
* direction. The aspect ratio is the ratio of x (width) to y (height)
* @z_near: the distance from the viewer to the near clipping
* plane (always positive)
* @z_far: the distance from the viewer to the far clipping
* plane (always positive)
*
* Stage perspective definition. #ClutterPerspective is only used by
* the fixed point version of clutter_stage_set_perspective().
*
* Since: 0.4
*/
struct _ClutterPerspective
{
ClutterFixed fovy;
ClutterFixed aspect;
ClutterFixed z_near;
ClutterFixed z_far;
};
/**
* ClutterFog:
* @density: density of the fog
* @z_near: starting distance from the viewer to the near clipping
* plane (always positive)
* @z_far: final distance from the viewer to the far clipping
* plane (always positive)
*
* Fog settings used to create the depth cueing effect. #ClutterFog is
* useful only when using the fixed point API.
*
* Since: 0.6
*/
struct _ClutterFog
{
ClutterFixed density;
ClutterFixed z_near;
ClutterFixed z_far;
};
GType clutter_perspective_get_type (void) G_GNUC_CONST;
GType clutter_fog_get_type (void) G_GNUC_CONST;
GType clutter_stage_get_type (void) G_GNUC_CONST;
ClutterActor *clutter_stage_get_default (void);
ClutterActor *clutter_stage_new (void);
void clutter_stage_set_color (ClutterStage *stage,
const ClutterColor *color);
void clutter_stage_get_color (ClutterStage *stage,
ClutterColor *color);
void clutter_stage_set_perspectivex (ClutterStage *stage,
ClutterPerspective *perspective);
void clutter_stage_get_perspectivex (ClutterStage *stage,
ClutterPerspective *perspective);
void clutter_stage_set_perspective (ClutterStage *stage,
gfloat fovy,
gfloat aspect,
gfloat z_near,
gfloat z_far);
void clutter_stage_get_perspective (ClutterStage *stage,
gfloat *fovy,
gfloat *aspect,
gfloat *z_near,
gfloat *z_far);
void clutter_stage_fullscreen (ClutterStage *stage);
void clutter_stage_unfullscreen (ClutterStage *stage);
void clutter_stage_show_cursor (ClutterStage *stage);
void clutter_stage_hide_cursor (ClutterStage *stage);
ClutterActor *clutter_stage_get_actor_at_pos (ClutterStage *stage,
gint x,
gint y);
guchar *clutter_stage_read_pixels (ClutterStage *stage,
gint x,
gint y,
gint width,
gint height);
gboolean clutter_stage_event (ClutterStage *stage,
ClutterEvent *event);
void clutter_stage_set_title (ClutterStage *stage,
const gchar *title);
G_CONST_RETURN gchar *clutter_stage_get_title (ClutterStage *stage);
void clutter_stage_set_user_resizable (ClutterStage *stage,
gboolean resizable);
gboolean clutter_stage_get_user_resizable (ClutterStage *stage);
void clutter_stage_set_use_fog (ClutterStage *stage,
gboolean fog);
gboolean clutter_stage_get_use_fog (ClutterStage *stage);
void clutter_stage_set_fog (ClutterStage *stage,
gdouble density,
gdouble z_near,
gdouble z_far);
void clutter_stage_get_fog (ClutterStage *stage,
gdouble *density,
gdouble *z_near,
gdouble *z_far);
void clutter_stage_set_fogx (ClutterStage *stage,
ClutterFog *fog);
void clutter_stage_get_fogx (ClutterStage *stage,
ClutterFog *fog);
gdouble clutter_stage_get_resolution (ClutterStage *stage);
ClutterFixed clutter_stage_get_resolutionx (ClutterStage *stage);
void clutter_stage_set_key_focus (ClutterStage *stage,
ClutterActor *actor);
ClutterActor * clutter_stage_get_key_focus (ClutterStage *stage);
/* New experiental calls */
void clutter_stage_ensure_current (ClutterStage *stage);
void clutter_stage_queue_redraw (ClutterStage *stage);
gboolean clutter_stage_is_default (ClutterStage *stage);
/* Commodity macro */
#define clutter_stage_add(stage,actor) G_STMT_START { \
if (CLUTTER_IS_STAGE ((stage)) && CLUTTER_IS_ACTOR ((actor))) \
{ \
ClutterContainer *_container = (ClutterContainer *) (stage); \
ClutterActor *_actor = (ClutterActor *) (actor); \
clutter_container_add_actor (_container, _actor); \
} } G_STMT_END
G_END_DECLS
#endif /* __CLUTTER_STAGE_H__ */