1 #include <u.h>
2 #include <libc.h>
3 #include <stdio.h>
4 #include <draw.h>
5 #include <event.h>
6 #define SCX(A) ((((A) - e1->xmin)*e1->scalex  + e1->left)+.5)
7 #define SCY(A) ((((A) - e1->ymin)*e1->scaley + e1->bottom)+.5)
8 #define	SCR(A) ((A)*e1->scalex+.5)
9 #define unorm(y)	(double)(e1->sidey - y)
10 #define	BIGINT	0x3FFFFFFF	/* a large, but valid, int */
11 extern struct penvir {
12 	double left, bottom;
13 	double xmin, ymin;
14 	double scalex, scaley;
15 	double sidex, sidey;
16 	double copyx, copyy;
17 	double quantum;
18 	double grade;
19 	int pgap;
20 	double pslant;
21 	int pmode;
22 	ulong foregr;
23 	ulong backgr;
24 } *e0, *e1, *esave;
25 #define RADIAN 57.3	/* radians per degree */
26 struct seg {
27 	int x, y, X, Y;
28 	char stat;
29 };
30 
31 /*
32  * display parameters
33  */
34 extern int clipminx, clipminy, clipmaxx, clipmaxy;	/* clipping rectangle */
35 extern int mapminx, mapminy, mapmaxx, mapmaxy;		/* centered square */
36 /*
37  * Prototypes
38  */
39 #include "../plot.h"
40 void m_clrwin(int, int, int, int, int);
41 void m_finish(void);
42 void m_initialize(char *);
43 int m_text(int, int, char *, char *, int, int, int);
44 void m_vector(int, int, int, int, int);
45 void m_swapbuf(void);
46 void m_dblbuf(void);
47 int bcolor(char *);
48 void sscpy(struct penvir *, struct penvir *);
49 Image *getcolor(int);