Adapt src/pre-eqn (src/preproc/eqn)
[s-roff.git] / src / preproc / grn / gprint.h
blobad3be443015d8759136d78fe03154444bcd0827b
1 /* Last non-groff version: gprint.h 1.1 84/10/08
3 * This file contains standard definitions used by the gprint program.
4 */
6 #include <stdio.h>
7 #include <math.h>
10 #define xorn(x,y) (x)
11 /* was 512 */
12 #define yorn(x,y) (511 - (y)) /* switch direction for */
13 /* y-coordinates */
15 #define STYLES 6
16 #define SIZES 4
17 #define FONTS 4
18 #define SOLID -1
19 #define DOTTED 004 /* 014 */
20 #define DASHED 020 /* 034 */
21 #define DOTDASHED 024 /* 054 */
22 #define LONGDASHED 074
24 #define DEFTHICK -1 /* default thicknes */
25 #define DEFSTYLE SOLID /* default line style */
27 #define TRUE 1
28 #define FALSE 0
30 #define nullelt -1
31 #define nullpt -1
32 #define nullun NULL
34 #define BOTLEFT 0
35 #define BOTRIGHT 1
36 #define CENTCENT 2
37 #define VECTOR 3
38 #define ARC 4
39 #define CURVE 5
40 #define POLYGON 6
41 #define BSPLINE 7
42 #define BEZIER 8
43 #define TOPLEFT 10
44 #define TOPCENT 11
45 #define TOPRIGHT 12
46 #define CENTLEFT 13
47 #define CENTRIGHT 14
48 #define BOTCENT 15
49 #define TEXT(t) ( (t <= CENTCENT) || (t >= TOPLEFT) )
51 /* WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING
52 * The above (TEXT) test is dependent on the relative values of the
53 * constants and will have to change if these values change or if new
54 * commands are added with value greater than BOTCENT
57 #define NUSER 4
58 #define NFONTS 4
59 #define NBRUSHES 6
60 #define NSIZES 4
61 #define NJUSTS 9
62 #define NSTIPPLES 16
64 #define ADD 1
65 #define DELETE 2
66 #define MOD 3
68 typedef struct point {
69 double x, y;
70 struct point *nextpt;
71 } POINT;
73 typedef struct elmt {
74 int type, brushf, size, textlength;
75 char *textpt;
76 POINT *ptlist;
77 struct elmt *nextelt, *setnext;
78 } ELT;
80 #define DBNextElt(elt) (elt->nextelt)
81 #define DBNextofSet(elt) (elt->setnext)
82 #define DBNullelt(elt) (elt == NULL)
83 #define Nullpoint(pt) ((pt) == (POINT *) NULL)
84 #define PTNextPoint(pt) (pt->nextpt)
86 /* EOF */