/**
 * blenlib/DNA_curve_types.h (mar-2001 nzc)
 *
 * Curve stuff.
 *
 * $Id: DNA_curve_types.h,v 1.6 2003/04/27 11:55:09 ton Exp $ 
 *
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */
#ifndef DNA_CURVE_TYPES_H
#define DNA_CURVE_TYPES_H

#include "DNA_listBase.h"
#include "DNA_vec_types.h"
#include "DNA_ID.h"

struct BoundBox;
struct Object;
struct Ipo;
struct Key;
struct Material;
struct VFont;

#
#
typedef struct Path {
	int len;
	float *data;
	float totdist;
} Path;

#
#
typedef struct BevList {
	struct BevList *next, *prev;
	short nr, flag;
	short poly, gat;
} BevList;

#
#
typedef struct BevPoint {
	float x, y, z, alfa, sina, cosa, mat[3][3];
	short f1, f2;
} BevPoint;


typedef struct BezTriple {
	float vec[3][3];
	float alfa;
	short s[3][2];
	short h1, h2;
	char f1, f2, f3, hide;
} BezTriple;

typedef struct BPoint {
	float vec[4];
	float alfa;
	short s[2];
	short f1, hide;
} BPoint;

typedef struct Nurb {
	struct Nurb *next, *prev;
	short type, mat_nr;
	short hide, flag;
	short pntsu, pntsv;
	short resolu, resolv;
	short orderu, orderv;
	short flagu, flagv;
	
	float *knotsu, *knotsv;
	BPoint *bp;
	BezTriple *bezt;
	
} Nurb;


typedef struct Curve {
	ID id;
	
	struct BoundBox *bb;
	
	ListBase nurb;
	ListBase disp;
	struct Object *bevobj, *textoncurve;
	struct Ipo *ipo;
	Path *path;
	struct Key *key;
	struct Material **mat;
	
	ListBase bev;
	float *orco;

	float loc[3];
	float size[3];
	float rot[3];

	int texflag;

	short pathlen, totcol;
	short flag, bevresol;
	float width, ext1, ext2;
	
	/* default */
	short resolu, resolv;
	
	/* font part */
	short len, lines, pos, spacemode;
	float spacing, linedist, shear, fsize;
	float xof, yof;
	
	char *str, family[24];
	struct VFont *vfont;

} Curve;

typedef struct IpoCurve {
	struct IpoCurve *next,  *prev;
	
	struct BPoint *bp;
	struct BezTriple *bezt;

	rctf maxrct, totrct;

	short blocktype, adrcode, vartype;
	short totvert;
	short ipo, extrap;
	short flag, rt;
	float ymin, ymax;
	unsigned int bitmask;
	
	float curval;
	
} IpoCurve;

/* **************** CURVE ********************* */

/* flag */
#define CU_3D			1
#define CU_FRONT		2
#define CU_BACK			4
#define CU_PATH			8
#define CU_FOLLOW		16
#define CU_UV_ORCO		32
#define CU_NOPUNOFLIP	64

/* spacemode */
#define CU_LEFT			0
#define CU_MIDDLE		1
#define CU_RIGHT		2
#define CU_FLUSH		3

/* flag (nurb) */
#define CU_SMOOTH		ME_SMOOTH

/* type (nurb) */
#define CU_POLY			0
#define CU_BEZIER		1
#define CU_BSPLINE		2
#define CU_CARDINAL		3
#define CU_NURBS		4
#define CU_2D			8

/* flagu flagv (nurb) */
#define CU_CYCLIC		1

/* h1 h2 (beztriple) */
#define HD_FREE		0
#define HD_AUTO		1
#define HD_VECT		2
#define HD_ALIGN	3

#endif

