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| 1 | /* | ||
| 2 | * This file is part of the UCB release of Plan 9. It is subject to the license | ||
| 3 | * terms in the LICENSE file found in the top-level directory of this | ||
| 4 | * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No | ||
| 5 | * part of the UCB release of Plan 9, including this file, may be copied, | ||
| 6 | * modified, propagated, or distributed except according to the terms contained | ||
| 7 | * in the LICENSE file. | ||
| 8 | */ | ||
| 9 | |||
| 10 | #include <u.h> | ||
| 11 | #include <libc.h> | ||
| 12 | #include <stdio.h> | ||
| 13 | #include <draw.h> | ||
| 14 | #include <event.h> | ||
| 15 | #define SCX(A) ((((A) - e1->xmin)*e1->scalex + e1->left)+.5) | ||
| 16 | #define SCY(A) ((((A) - e1->ymin)*e1->scaley + e1->bottom)+.5) | ||
| 17 | #define SCR(A) ((A)*e1->scalex+.5) | ||
| 18 | #define unorm(y) (double)(e1->sidey - y) | ||
| 19 | #define BIGINT 0x3FFFFFFF /* a large, but valid, int */ | ||
| 20 | extern struct penvir { | ||
| 21 | double left, bottom; | ||
| 22 | double xmin, ymin; | ||
| 23 | double scalex, scaley; | ||
| 24 | double sidex, sidey; | ||
| 25 | double copyx, copyy; | ||
| 26 | double quantum; | ||
| 27 | double grade; | ||
| 28 | int pgap; | ||
| 29 | double pslant; | ||
| 30 | int pmode, foregr, backgr; | ||
| 31 | } *e0, *e1, *esave; | ||
| 32 | #define RADIAN 57.3 /* radians per degree */ | ||
| 33 | struct seg { | ||
| 34 | int x, y, X, Y; | ||
| 35 | char stat; | ||
| 36 | }; | ||
| 37 | |||
| 38 | /* | ||
| 39 | * display parameters | ||
| 40 | */ | ||
| 41 | int clipminx, clipminy, clipmaxx, clipmaxy; /* clipping rectangle */ | ||
| 42 | int mapminx, mapminy, mapmaxx, mapmaxy; /* centered square */ | ||
| 43 | /* | ||
| 44 | * Prototypes | ||
| 45 | */ | ||
| 46 | #include "../plot.h" | ||
| 47 | void m_clrwin(int, int, int, int, int); | ||
| 48 | void m_finish(void); | ||
| 49 | void m_initialize(char *); | ||
| 50 | int m_text(int, int, char *, char *, int, int, int); | ||
| 51 | void m_vector(int, int, int, int, int); | ||
| 52 | void m_swapbuf(void); | ||
| 53 | void m_dblbuf(void); | ||
| 54 | int bcolor(char *); | ||
| 55 | void sscpy(struct penvir *, struct penvir *); | ||
| 56 | Image *getcolor(int); | ||