97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
#include <locale.h>
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#include <unistd.h>
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#include "curse.h"
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#define BASE_DELAY 1000000
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#define CRS_LOCALE "en_US.UTF-8"
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/* Set ncurses terminal mode (buffering, character processing,
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* Key->SIG handling, and other termios(3) functionality).
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*/
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inline int termmode(enum crs_termmode mode) {
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switch (mode) {
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case TMODE_CBREAK:
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return cbreak();
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case TMODE_RAW:
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return raw();
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case TMODE_NOCBREAK:
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return nocbreak();
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case TMODE_NORAW:
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return noraw();
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/* defaulting is not possible. */
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}
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}
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/* Initialise ncurses for our usecase.
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* WARNING: This function should only be called once.
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*/
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inline void init_ncurses(void) {
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// ncurses expects a locale for consistent behaviour
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setlocale(LC_ALL, CRS_LOCALE);
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/* NCurses Init */
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start_color();
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/* Screen Configuration */
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termmode(TMODE_CBREAK);
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noecho(); // manually echo from getch(3x)
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curs_set(0); // hide cursor
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}
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/* Apply a default IO configuration for an ncurses WINDOW.
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*/
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static inline void __conf_window(WINDOW *win) {
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nodelay(win, TRUE); // getch(3x) nonblocking IO
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keypad(win, TRUE); // allow function keys
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// intrflush(3x) - flush terminal input buffer on interrupt key
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intrflush(win, FALSE);
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}
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/* Initialise (with default IO configuration) a new ncruses WINDOW.
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*/
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WINDOW *new_window(int x, int y, int width, int height) {
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WINDOW *win = newwin(height, width, y, x);
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__conf_window(win);
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return win;
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}
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/* Initialise (with default IO configuration) the root ncurses WINDOW.
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* NOTE: This is typically done via initscr(3x) and called "stdscr".
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*/
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inline WINDOW *root_window(void) {
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WINDOW *rootwin = new_window(0, 0, 0, 0);
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__conf_window(rootwin);
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return rootwin;
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}
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int main(int argc, char *argv[]) {
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init_ncurses();
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WINDOW *stdscr = new_window(0, 0, 0, 0);
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// Set background
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wbkgd(stdscr, COLOR_PAIR(1));
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attron(COLOR_PAIR(1));
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attron(A_BOLD);
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int counter = 0;
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while (1) {
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mvprintw(0, 0, "COUNTER %d", counter++);
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refresh();
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switch (getch()) {
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case 'q':
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goto end;
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default:
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break;
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}
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usleep(BASE_DELAY);
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}
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end:
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endwin();
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return 0;
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}
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