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/*
** symmetry.h - Nina Amenta, Aug. 1989 *
* main.h for kali by Ed H. Chi (chi@geom.umn.edu) summer 1994
*
* $Id: main.h,v 1.5 1996/10/07 15:40:42 slevy Exp $
* $Log: main.h,v $
* Revision 1.5 1996/10/07 15:40:42 slevy
* Remove QREAD, etc., no longer needed.
*
* Revision 1.4 1996/09/30 21:02:40 slevy
* Declare GXDraw instead of GLDraw.
*
* Revision 1.3 1996/06/04 17:26:08 slevy
* Add DRAWER object -- table of function pointers,
* with drawing routines, and push/pop/translate routines.
* Add macros to call them easily.
* Declare GLDraw, PSDraw, PickDraw instances.
*
* Revision 1.2 1994/09/12 23:14:41 chi
* version 3.0 changes
* header file recreated
*
* Revision 1.1 1994/08/26 16:29:02 chi
* Initial revision
*
* Revision 1.1 1994/08/15 20:05:38 chi
* Initial revision
*
*/
#ifndef MAIN_H
#define MAIN_H
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#define NUM_SYM 24
#define P3 0
#define P2 1
#define P1 2
#define PG 3
#define PGG 4
#define PMG 5
#define PM 6
#define CM 7
#define PMM 8
#define CMM 9
#define P31M 10
#define P3M1 11
#define P4 12
#define P4G 13
#define P4M 14
#define P6 15
#define P6M 16
/* Frieze symmetry groups */
#define HOP 17
#define SPINHOP 18
#define JUMP 19
#define SPINJUMP 20
#define SIDLE 21
#define SPINSIDLE 22
#define STEP 23
#define KALISX 0
#define KALISY 1
#define EX 2
#define EY 3
#define GLIDE 1
#define KALIDRAW 1
#define KALICUT 2
#define KALIPICK 3
#define KALITRANSFORM 4
#define KALIMOVE 5
#define KALIZOOM 6
#define KALIANGLE 7
#define KALIRATIO 8
#define KALIROTATE 9
#define KALIDELETE 10
#define NAMESTACKSIZE 50
typedef struct point_t {
float x;
float y;
} POINT;
typedef struct rectangle_t {
float x;
float y;
float width;
float height;
} RECTANGLE;
typedef POINT VECTOR;
typedef struct sym_t SYMMETRY;
typedef struct s_line LINE;
typedef float MATRIX[4];
typedef long WINDOW;
typedef long MENU;
/* Bit flags for dof (degrees of freedom) field of symmetry definition */
#define RAT 1
#define ANG 2
struct sym_t
{
int dof;
int trans;
VECTOR v1;
VECTOR v2;
int refl;
VECTOR reflections[2];
int glide;
int rot;
char *label;
LINE* grid;
};
struct s_line {
MATRIX m;
short id;
short obj_pos;
LINE *next;
};
typedef struct _drawer DRAWER;
struct _drawer {
char *kind;
void (*drawobject)(DRAWER *, LINE *);
void (*pushtfm)(DRAWER *);
void (*translate)(DRAWER *, double x, double y);
void (*poptfm)(DRAWER *);
void (*drawline)(DRAWER *, LINE *);
void (*drawpoints)(DRAWER *, POINT *, int);
void *data;
};
#define TranslateCoordinates(drawer, x, y) \
{ if((drawer)->pushtfm) (*(drawer)->pushtfm)(drawer); \
(*(drawer)->translate)(drawer, x, y); \
}
#define TranslateBack(drawer) \
{ if((drawer)->poptfm) (*(drawer)->poptfm)(drawer); }
#define DrawLine(drawer, line) \
(*(drawer)->drawline)(drawer, line)
#define DrawObject(drawer, lines) \
(*(drawer)->drawobject)(drawer, lines)
#define DrawPoints(drawer, points, count) \
{ if((drawer)->drawpoints) (*(drawer)->drawpoints)(drawer, points, count); }
extern DRAWER GXDraw;
extern DRAWER PSDraw;
extern DRAWER PickDraw;
#define RectIncludesPoint(r,p) \
(((p).x>=(r).x) && \
((p).y>=(r).y) && \
(((p).x<=(r).x+(r).width)) && \
(((p).y<=(r).y+(r).height)))
#define PointRightOfRect(p,r) \
(((p).x>(r).x+(r).width))
#define PointLeftOfRect(p,r) \
(((p).x<(r).x))
#define PointAboveRect(p,r) \
(((p).y>(r).y+(r).height))
#define PointBelowRect(p,r) \
(((p).y<(r).y))
#define bump(src,dest,scale,vec) \
{ (dest)->x=(scale)*(vec)->x+(src)->x; (dest)->y=(scale)*(vec)->y+(src)->y; }
#endif
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