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https://github.com/troglobit/libite.git
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Joachim Wiberg
407b8f6dbf
The tree.h and queue.h include guards must remain so users don't accidentally get their system queue.h included as well. Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
145 lines
4.0 KiB
C
145 lines
4.0 KiB
C
/* A conio.h like implementation for VTANSI displays.
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*
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* Copyright (c) 2009-2021 Joachim Wiberg <troglobit@gmail.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/**
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* @file conio.h
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* @author Joachim Wiberg
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* @date 2009-2021
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* @copyright ISC License
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*
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* Helper macros and functions for interacting with TTY terminals.
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*/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#ifndef LIBITE_CONIO_H_
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#define LIBITE_CONIO_H_
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#include <stdio.h>
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/** Attributes */
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#define RESETATTR 0
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#define BRIGHT 1
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#define DIM 2
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#define UNDERSCORE 4
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#define BLINK 5 /* May not work on all displays. */
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#define REVERSE 7
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#define HIDDEN 8
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/** Colors for text and background */
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#define BLACK 0x0
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#define RED 0x1
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#define GREEN 0x2
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#define BROWN 0x3
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#define BLUE 0x4
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#define MAGENTA 0x5
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#define CYAN 0x6
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#define LIGHTGREY 0x7
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#define DARKGREY 0x10
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#define LIGHTRED 0x11
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#define LIGHTGREEN 0x12
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#define YELLOW 0x13
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#define LIGHTBLUE 0x14
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#define LIGHTMAGENTA 0x15
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#define LIGHTCYAN 0x16
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#define WHITE 0x17
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#ifndef SCREEN_WIDTH
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#define SCREEN_WIDTH 80 /**< Fallback screen width, possible to override. */
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#endif
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/** Clear screen and move cursor to 1,1 (upper left) pos. */
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#define clrscr() fputs("\033[2J\033[1;1H", stdout)
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/** Erases from the current cursor position to the end of the current line. */
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#define clreol() fputs("\033[K", stdout)
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/** Erases the entire current line. */
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#define delline() fputs("\033[2K", stdout)
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/** Moves the cursor to the specified position (coordinates) */
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#define gotoxy(x,y) fprintf(stdout, "\033[%d;%dH", y, x)
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/** Hide Cursor */
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#define hidecursor() fputs("\033[?25l", stdout)
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/** Show Cursor */
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#define showcursor() fputs("\033[?25h", stdout)
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/** Set Graphics Mode (attr, color, val) */
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#define __set_gm(a,c,v) \
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if (!c) \
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fprintf(stdout, "\033[%dm", a); \
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else \
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fprintf(stdout, "\033[%d;%dm", c & 0x10 ? 1 : 0, (c & 0xF) + v)
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/** Set text attribute */
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#define textattr(attr) __set_gm(attr, 0, 0)
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/** Set text color */
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#define textcolor(color) __set_gm(RESETATTR, color, 30)
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/** Set text background */
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#define textbackground(color) __set_gm(RESETATTR, color, 40)
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void initscr(int *row, int *col);
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/**
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* Print table heading, with optional leading newline.
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* @param fp output stream
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* @param line string to print
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* @param nl leading newline or not
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* @param attr attribute
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*
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* @verbatim
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* _________________ <-- Empty line with UNDERSCORE to frame first heading
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* First heading <-- In normal/RESETATTR
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* SUBHEADING <-- In REVERSE and with capital letters like 'top'
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* @endverbatim
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*/
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static inline void printhdr(FILE *fp, const char *line, int nl, int attr)
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{
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if (attr < 0 || attr > 8)
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attr = REVERSE;
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fprintf(fp ?: stdout,
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"%s\033[%dm%s%*s\033[0m\n",
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nl ? "\n" : "", attr, line,
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SCREEN_WIDTH - (int)strlen(line), "");
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}
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/**
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* Print reverse mode table heading, e.g. black text on white background.
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* @param fp output stream
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* @param line string to print
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* @param nl leading newline or not
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*/
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static inline void printheader(FILE *fp, const char *line, int nl)
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{
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printhdr(fp, line, nl, REVERSE);
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}
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#endif /* LIBITE_CONIO_H_ */
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#ifdef __cplusplus
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}
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#endif
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/**
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* Local Variables:
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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