66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
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/*
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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 Tomas Frydrych <tf@openedhand.com>
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*
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* Copyright (C) 2006, 2007 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_BEZIER_H__
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#define __CLUTTER_BEZIER_H__
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#include <glib.h>
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#include "clutter-types.h"
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G_BEGIN_DECLS
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/* This is used in _clutter_bezier_advance to represent the full
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length of the bezier curve. Anything less than that represents a
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fraction of the length */
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#define CLUTTER_BEZIER_MAX_LENGTH (1 << 18)
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typedef struct _ClutterBezier ClutterBezier;
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ClutterBezier *_clutter_bezier_new ();
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void _clutter_bezier_free (ClutterBezier * b);
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ClutterBezier *_clutter_bezier_clone_and_move (const ClutterBezier *b,
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gint x,
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gint y);
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void _clutter_bezier_advance (const ClutterBezier *b,
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gint L,
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ClutterKnot *knot);
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void _clutter_bezier_init (ClutterBezier *b,
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gint x_0, gint y_0,
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gint x_1, gint y_1,
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gint x_2, gint y_2,
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gint x_3, gint y_3);
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void _clutter_bezier_adjust (ClutterBezier *b,
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ClutterKnot *knot,
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guint indx);
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guint _clutter_bezier_get_length (const ClutterBezier *b);
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G_END_DECLS
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#endif /* __CLUTTER_BEZIER_H__ */
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