mutter/clutter/clutter-behaviour-path.h
Emmanuele Bassi f83ffa3520 2006-12-04 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-private.h: Add our own READABLE,
	WRITABLE and READWRITE paramspec flags, declaring the
	string components of the properties GParamSpec as static;
	this should shave off some bytes in the memory footprint
	and avoid relocations.

	* clutter/clutter-actor.c:
	* clutter/clutter-behaviour.c:
	* clutter/clutter-behaviour-opacity.c:
	* clutter/clutter-behaviour-path.c:
	* clutter/clutter-behavuour-scale.c:
	* clutter/clutter-clone-texture.c:
	* clutter/clutter-label.c:
	* clutter/clutter-rectangle.c:
	* clutter/clutter-stage.c:
	* clutter/clutter-texture.c:
	* clutter/clutter-timeline.c: Use the CLUTTER_PARAM_*
	macros we just added.

	* clutter/clutter-behaviour-scale.c: Add properties for
	the scale begin, scale end and gravity parameters.

	* clutter/clutter-behaviour-path.h: Mark the ClutterKnot
	memory management functions as public (for the bindings),
	since we use the slice allocator for copying knots around;
	add a clutter_knot_equal() function.

	* clutter/clutter-behaviour-path.c:
	(node_distance): Use clutter_knot_equal() as a fast path
	to avoid the sqrt() in case the nodes we are using are
	at the same position.
	(path_total_length): Additional check on the existence
	of the next node.

	* examples/behave.c: Do not leak the ClutterBehaviour
	objects around.
2006-12-04 16:26:35 +00:00

119 lines
4.3 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
* Jorn Baayen <jorn@openedhand.com>
* Emmanuele Bassi <ebassi@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_BEHAVIOUR_PATH_H__
#define __CLUTTER_BEHAVIOUR_PATH_H__
#include <clutter/clutter-alpha.h>
#include <clutter/clutter-behaviour.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_KNOT (clutter_knot_get_type ())
typedef struct _ClutterKnot ClutterKnot;
struct _ClutterKnot
{
gint x,y;
/* FIXME: optionally include bezier control points also ? */
};
GType clutter_knot_get_type (void) G_GNUC_CONST;
ClutterKnot *clutter_knot_copy (const ClutterKnot *knot);
void clutter_knot_free (ClutterKnot *knot);
gboolean clutter_knot_equal (const ClutterKnot *knot_a,
const ClutterKnot *knot_b);
#define CLUTTER_TYPE_BEHAVIOUR_PATH (clutter_behaviour_path_get_type ())
#define CLUTTER_BEHAVIOUR_PATH(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
CLUTTER_TYPE_BEHAVIOUR_PATH, ClutterBehaviourPath))
#define CLUTTER_BEHAVIOUR_PATH_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), \
CLUTTER_TYPE_BEHAVIOUR_PATH, ClutterBehaviourPathClass))
#define CLUTTER_IS_BEHAVIOUR_PATH(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
CLUTTER_TYPE_BEHAVIOUR_PATH))
#define CLUTTER_IS_BEHAVIOUR_PATH_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), \
CLUTTER_TYPE_BEHAVIOUR_PATH))
#define CLUTTER_BEHAVIOUR_PATH_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), \
CLUTTER_TYPE_BEHAVIOUR_PATH, ClutterBehaviourPathClass))
typedef struct _ClutterBehaviourPath ClutterBehaviourPath;
typedef struct _ClutterBehaviourPathPrivate ClutterBehaviourPathPrivate;
typedef struct _ClutterBehaviourPathClass ClutterBehaviourPathClass;
struct _ClutterBehaviourPath
{
ClutterBehaviour parent;
ClutterBehaviourPathPrivate *priv;
};
struct _ClutterBehaviourPathClass
{
ClutterBehaviourClass parent_class;
void (*knot_reached) (ClutterBehaviourPath *pathb,
const ClutterKnot *knot);
void (*_clutter_path_1) (void);
void (*_clutter_path_2) (void);
void (*_clutter_path_3) (void);
void (*_clutter_path_4) (void);
};
GType clutter_behaviour_path_get_type (void) G_GNUC_CONST;
ClutterBehaviour *clutter_behaviour_path_new (ClutterAlpha *alpha,
const ClutterKnot *knots,
guint n_knots);
GSList * clutter_behaviour_path_get_knots (ClutterBehaviourPath *pathb);
void clutter_behaviour_path_append_knot (ClutterBehaviourPath *pathb,
const ClutterKnot *knot);
void clutter_behaviour_path_append_knots (ClutterBehaviourPath *pathb,
const ClutterKnot *first_knot,
...) G_GNUC_NULL_TERMINATED;
void clutter_behaviour_path_insert_knot (ClutterBehaviourPath *pathb,
guint offset,
const ClutterKnot *knot);
void clutter_behaviour_path_remove_knot (ClutterBehaviourPath *pathb,
guint offset);
void clutter_behaviour_path_clear (ClutterBehaviourPath *pathb);
G_END_DECLS
#endif /* __CLUTTER_BEHAVIOUR_PATH_H__ */