/*
 * 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-group.h>
#include <clutter/clutter-color.h>
#include <clutter/clutter-event.h>
#include <gdk-pixbuf/gdk-pixbuf.h>

G_BEGIN_DECLS

#define CLUTTER_TYPE_PERSPECTIVE  (clutter_perspective_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))

#define CLUTTER_STAGE_WIDTH() \
 clutter_actor_get_width (clutter_stage_get_default ())

#define CLUTTER_STAGE_HEIGHT() \
 clutter_actor_get_height (clutter_stage_get_default ())

typedef struct _ClutterPerspective  ClutterPerspective;
typedef struct _ClutterStage        ClutterStage;
typedef struct _ClutterStageClass   ClutterStageClass;
typedef struct _ClutterStagePrivate ClutterStagePrivate;

struct _ClutterStage
{
  /*< private >*/
  ClutterGroup parent_instance;
  
  ClutterStagePrivate *priv;
}; 

struct _ClutterStageClass 
{
  /*< private >*/
  ClutterGroupClass parent_class;

  /*< public >*/
  /* vfuncs, not signals */
  void          (* set_fullscreen)     (ClutterStage *stage,
                                        gboolean      fullscreen);
  void          (* set_cursor_visible) (ClutterStage *stage,
                                        gboolean      visible);
  void          (* set_offscreen)      (ClutterStage *stage,
                                        gboolean      offscreen);
  GdkPixbuf*    (* draw_to_pixbuf)     (ClutterStage *stage,
                                        gint          x,
                                        gint          y,
                                        gint          width,
                                        gint          height);
  void          (* set_title)          (ClutterStage *stage,
                                        const gchar  *title);
  void          (* set_user_resize)    (ClutterStage *stage,
                                        gboolean      value);

  /* events */
  void     (* stage_state_event)    (ClutterStage           *stage,
                                     ClutterStageStateEvent *event);

  /*< private >*/
  /* padding for future expansion */
  gpointer _padding_dummy[32];
};



/**
 * ClutterPerspective:
 * @fovy: FIXME
 * @aspect: FIXME
 * @z_near: FIXME
 * @z_far: FIXME
 *
 * Stage perspective definition
 *
 * Since: 0.4
 */
struct _ClutterPerspective
{
  ClutterFixed fovy;
  ClutterFixed aspect;
  ClutterFixed z_near;
  ClutterFixed z_far;
};

GType               clutter_perspective_get_type (void) G_GNUC_CONST;
ClutterPerspective *clutter_perspective_copy     (const ClutterPerspective *perspective);
void                clutter_perspective_free     (ClutterPerspective       *perspective);

GType         clutter_stage_get_type          (void) G_GNUC_CONST;

ClutterActor *clutter_stage_get_default       (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);
GdkPixbuf *   clutter_stage_snapshot          (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);

/* New experiental calls */
void
clutter_stage_set_key_focus (ClutterStage       *stage,
			     ClutterActor       *actor);

ClutterActor*
clutter_stage_get_key_focus (ClutterStage       *stage);

G_END_DECLS

#endif /* __CLUTTER_STAGE_H__ */