term_tt_posix.cxx

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/*
 * Copyright (C) 2021  Patrick Pedersen
 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 * 
 */
 
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <curses.h>
 
#include <tempo_tapper.h>
 
int main()
{
        tempo_tapper *tt = tt_new(); // Create new tempo tapper instance
 
        // Check if malloc failed
        if (tt == NULL) {
                free(tt);
                printf("term_tt: Failed to create a new tempo tapper instance!\n");
                return EXIT_FAILURE;
        }
 
        // Initialize ncurses
        initscr();
        timeout(-1);
        curs_set(0);
 
        char input; // Keyboard input
 
        do {
                clear();
                printw("Use the enter key to tap a tempo. Press q to quit.\n");
                refresh();
 
                while (1) {
                        input = getchar();
                        clear();
 
                        if (input == 'q' || input == 'r')
                                break;
                        else if (input == '\r' || input == '\n')
                                tt_tap(tt); // Newline received, tap!
                        else
                                printw("Invalid input!\n");
                        
                        // Get tempo, using tt_bpm(), and tempo period using tt_preiod_us(), and print it out!
                        printw("Tempo: %.2f BPM, Period: %.2fms\n", tt_bpm(tt), float(tt_period_us(tt))/1000);
                        printw("Press r to reset, press q to quit.\n");
                        refresh();
                }
 
                tt_reset(tt); // Reset tempo tapper
        } while(input != 'q');
 
        endwin();
        free(tt);
        return 0;
}