/*
 * Author:      William Chia-Wei Cheng (bill.cheng@acm.org)
 *
 * Copyright (C) 2001-2006, William Chia-Wei Cheng.
 *
 * This file may be distributed under the terms of the Q Public License
 * as defined by Trolltech AS of Norway and appearing in the file
 * LICENSE.QPL included in the packaging of this file.
 *
 * THIS FILE IS PROVIDED AS IS WITH NO WARRANTY OF ANY KIND, INCLUDING
 * THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * @(#)$Header: /mm2/home/cvs/bc-src/tgif/spline.e,v 1.3 2006/02/10 23:21:21 william Exp $
 */

#ifndef _SPLINE_E_
#define _SPLINE_E_

extern int	intSplineTension;
extern int	splineTol;
extern int	splineRubberband;

#ifdef _INCLUDE_FROM_SPLINE_C_
#undef extern
#define extern
#endif /*_INCLUDE_FROM_SPLINE_C_*/

extern void	CalcAutoRetractedArrowAttrBend ARGS_DECL((int Style,
		                                          int X0, int Y0,
		                                          int X2, int Y2,
		                                          int *X1, int *Y1));
extern void	Spline ARGS_DECL((Window, int Pixel, int Func, double X1,
		                  double Y1, double X2, double Y2,
		                  double X3, double Y3, double X4, double Y4));
extern XPoint	* MakeSplinePolyVertex ARGS_DECL((int *N,
		                                  int XOff, int YOff,
		                                  int NumVs, IntPoint *));
extern XPoint	* MakeMultiSplinePolyVertex ARGS_DECL((int *N, char *Smooth,
		                                       int XOff, int YOff,
		                                       int NumVs, IntPoint *));
extern XPoint	* MakeSplinePolygonVertex ARGS_DECL((int *N,
		                                     int XOff, int YOff,
		                                     int NumVs, IntPoint *));
extern XPoint	* MakeDoubleSplinePolygonVertex ARGS_DECL((int *N,
		                                           int XOff, int YOff,
		                                           int NumVs,
		                                           DoublePoint *));
extern XPoint	* MakeMultiSplinePolygonVertex ARGS_DECL((int *N, char *Smooth,
		                                          int XOff, int YOff,
		                                          int NumVs,
		                                          IntPoint*));
extern XPoint	* MakeIntSplinePolyVertex ARGS_DECL((int *N, int *CntrlN,
		                                     IntPoint **CntrlVs,
		                                     int XOff, int YOff,
		                                     int NumVs, IntPoint *));
extern XPoint	* MakeIntSplinePolygonVertex ARGS_DECL((int *N, int *CntrlN,
		                                        IntPoint **CntrlVs,
		                                        int XOff, int YOff,
		                                        int NumVs, IntPoint*));
extern XPoint	* MakeDoubleIntSplinePolygonVertex ARGS_DECL((int *N,
		                                              int *CntrlN,
		                                              DoublePoint**CntrlVs,
		                                              int XOff,
		                                              int YOff,
		                                              int NumVs,
		                                              DoublePoint*));
extern void	DumpCurvedPolyPoints ARGS_DECL((FILE*, int NumPts,
		                                IntPoint*, int Indent));
extern void	DumpCurvedPolygonPoints ARGS_DECL((FILE*, int NumPts,
		                                   IntPoint*, int Indent));
extern void	DumpMultiCurvedPolyPoints ARGS_DECL((FILE*, char *Smooth,
		                                     int Style, int Curved,
		                                     int NumPts, IntPoint*,
		                                     int Indent));
extern void	DumpMultiCurvedPolygonPoints ARGS_DECL((FILE*, char *Smooth,
		                                        int Curved, int NumPts,
		                                        IntPoint*, int Indent));

#ifdef _INCLUDE_FROM_SPLINE_C_
#undef extern
#ifndef _NO_RECURSIVE_EXTERN
#define extern extern
#endif /* ~_NO_RECURSIVE_EXTERN */
#endif /*_INCLUDE_FROM_SPLINE_C_*/

#endif /*_SPLINE_E_*/