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/** \file ccurve.h
* Definitions for curve commands
*/
/* XTrkCad - Model Railroad CAD
* Copyright (C) 2005 Dave Bullis
*
* 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.
*
* 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.
*/
#ifndef HAVE_CCURVE_H
#define HAVE_CCURVE_H
#include "draw.h"
#include "track.h"
#include "wlib.h"
#include "utility.h"
typedef struct {
curveType_e type;
coOrd curvePos;
coOrd pos1;
DIST_T curveRadius;
ANGLE_T a0, a1;
BOOL_T negative;
} curveData_t;
#define crvCmdFromEP1 (0)
#define crvCmdFromTangent (1)
#define crvCmdFromCenter (2)
#define crvCmdFromChord (3)
#define crvCmdFromCornu (4)
#define circleCmdFixedRadius (0)
#define circleCmdFromTangent (1)
#define circleCmdFromCenter (2)
typedef void (*curveMessageProc)( char *, ... );
STATUS_T CreateCurve( wAction_t, coOrd, BOOL_T, wDrawColor, DIST_T, long, curveMessageProc );
int IsCurveCircle( track_p );
void PlotCurve( long, coOrd, coOrd, coOrd, curveData_t *, BOOL_T );
track_p NewCurvedTrack( coOrd, DIST_T, ANGLE_T, ANGLE_T, long );
DIST_T CurveDescriptionDistance( coOrd, track_p );
STATUS_T CurveDescriptionMove( track_p, wAction_t, coOrd );
BOOL_T GetCurveMiddle( track_p , coOrd * );
void DrawArrowHeads(trkSeg_p sp, coOrd pos, ANGLE_T angle, BOOL_T bidirectional, wDrawColor color );
#endif // !HAVE_CCURVE_H
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