36 lines
882 B
C
36 lines
882 B
C
/* @(#)charimage.h 1.1 94/10/31 SMI */
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/*
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* Copyright (c) 1983 by Sun Microsystems, Inc.
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*/
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/*
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* Definitions relating to maintenance of virtual screen image.
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*/
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/*
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* Screen is maintained as an array of characters.
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* Screen is bottom lines and right columns.
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* Each line has length and array of characters.
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* Characters past length position are undefined.
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* Line is otherwise null terminated.
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*/
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extern unsigned char **image;
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extern char **screenmode;
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extern int top, bottom, left, right;
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extern int cursrow, curscol;
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#define length(line) ((line)[-1])
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#define MODE_CLEAR 0
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#define MODE_INVERT 1
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#define MODE_UNDERSCORE 2
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#define MODE_BOLD 4
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#define setlinelength(line, column) \
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{ unsigned char *cptr = (unsigned char *)(&((line)[-1]));\
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int _col = ((column)>right)?right:(column); \
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(line)[(_col)] = '\0'; \
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*cptr = (_col); \
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}
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