cava/output/terminal_bcircle.c

#include "output/terminal_bcircle.h"

#include <curses.h>
#include <locale.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>

#ifndef M_PI
#define M_PI 3.141592
#endif
#define DEGTORAD(deg) (deg * (180.0f / M_PI))
#define DOT 0x2588

int init_terminal_bcircle(int col, int bgcol) {

    initscr();
    curs_set(0);
    timeout(0);
    noecho();
    start_color();
    use_default_colors();
    init_pair(1, col, bgcol);
    if (bgcol != -1)
        bkgd(COLOR_PAIR(1));
    attron(COLOR_PAIR(1));
    //  attron(A_BOLD);
    return 0;
}

void get_terminal_dim_bcircle(int *w, int *h) {

    getmaxyx(stdscr, *h, *w);
    clear(); // clearing in case of resieze
}

int draw_terminal_bcircle(int tty, int h, int w, int f[200]) {

    const wchar_t *bars[] = {L"\u2581", L"\u2582", L"\u2583", L"\u2584",
                             L"\u2585", L"\u2586", L"\u2587", L"\u2588"};

    // output: check if terminal has been resized
    if (!tty) {
        if (LINES != h || COLS != w) {
            return -1;
        }
    }

    float deg, width, height;
    int y, x;

    /* Convert to int */
    width = f[1] / 10;
    height = f[1] / 15;

    int oy, ox;
    oy = LINES / 2 - height / 2;
    ox = COLS / 2 - width / 2;
    for (x = 0; x < COLS; x++) {
        for (y = 0; y < LINES; y++) {
            mvaddstr(y, x, " ");
        }
    }
    /* Draw circle */
    for (deg = 0; deg < 360.0f; deg += 1.0f) {
        x = ox + width + (int)(width * cos(DEGTORAD(deg)));
        y = oy + height + (int)(height * sin(DEGTORAD(deg)));

        mvaddwstr(y, x, bars[7]);
    }

    refresh();
    return 0;
}

// general: cleanup
void cleanup_terminal_bcircle(void) {
    echo();
    system("setfont >/dev/null 2>&1");
    system("setfont /usr/share/consolefonts/Lat2-Fixed16.psf.gz  >/dev/null 2>&1");
    system("setterm -blank 10");
    endwin();
    system("clear");
}