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Annotation of 43BSDTahoe/usr.lib/libplot/dumb/open.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)open.c     5.1 (Berkeley) 5/7/85";
                      9: #endif not lint
                     10: 
                     11: /*
                     12:  * This accepts plot file formats and produces the appropriate plots
                     13:  * for dumb terminals.  It can also be used for printing terminals and
                     14:  * lineprinter listings, although there is no way to specify number of
                     15:  * lines and columns different from your terminal.  This would be easy
                     16:  * to change, and is left as an exercise for the reader.
                     17:  */
                     18: 
                     19: #include <signal.h>
                     20: #include "dumb.h"
                     21: 
                     22: int minX, rangeX;      /* min and range of x */
                     23: int minY, rangeY;      /* min and range of y */
                     24: int currentx,currenty;
                     25: int COLS,LINES;
                     26: 
                     27: /* A very large screen! (probably should use malloc) */
                     28: char screenmat[MAXCOLS][MAXLINES];
                     29: 
                     30: openpl()
                     31: {
                     32:        int closepl();
                     33:        int i, j;
                     34:        char *term, *getenv();
                     35:        char bp[1024];
                     36: 
                     37:        term = getenv("TERM");
                     38:        tgetent(bp, term);
                     39: 
                     40:        COLS = tgetnum("co");
                     41:        if (COLS > MAXCOLS)
                     42:                COLS = MAXCOLS;
                     43:        if (COLS < 0)
                     44:                COLS = 48;      /* lower bound on # of cols? */
                     45:        COLS--;                         /* prevent auto wrap */
                     46: 
                     47:        LINES = tgetnum("li");
                     48:        if (LINES > MAXLINES)
                     49:                LINES = MAXLINES;
                     50:        if (LINES < 0)
                     51:                LINES = 20;     /* lower bound on # of lines? */
                     52: 
                     53:        for(i=0; i<COLS; i++)
                     54:                for(j=0; j<LINES; j++)
                     55:                        screenmat[i][j] = ' ';
                     56: 
                     57:        signal(SIGINT, closepl);
                     58:        currentx = currenty = 0;
                     59: }

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