ref: a12cf4f8c2f10bd65579f9380ad93d964c64ce43
dir: /tui_main.c/
#include "bank.h"
#include "base.h"
#include "field.h"
#include "mark.h"
#include "sim.h"
#include <getopt.h>
#include <locale.h>
#include <ncurses.h>
static void usage() {
// clang-format off
fprintf(stderr,
"Usage: ui [options] infile\n\n"
"Options:\n"
" -h or --help Print this message and exit.\n"
);
// clang-format on
}
void draw_ui_bar(WINDOW* win, int win_y, int win_x, const char* filename,
Usz tick_num) {
wmove(win, win_y, win_x);
wattron(win, A_BOLD);
wprintw(win, "%s", filename);
wattroff(win, A_BOLD);
wprintw(win, " %d", (int)tick_num);
wprintw(win, " q: quit space: step ");
}
void draw_debug_field(WINDOW* win, int win_y, int win_x, Glyph const* gbuffer,
Usz height, Usz width) {
enum { Bufcount = 4096 };
if (width > Bufcount)
return;
chtype buffer[Bufcount];
for (Usz y = 0; y < height; ++y) {
Glyph const* gline = gbuffer + y * width;
for (Usz x = 0; x < width; ++x) {
buffer[x] = (chtype)gline[x];
}
wmove(win, win_y + (int)y, (int)win_x);
waddchnstr(win, buffer, (int)width);
}
}
int main(int argc, char** argv) {
static struct option tui_options[] = {{"help", no_argument, 0, 'h'},
{NULL, 0, NULL, 0}};
char* input_file = NULL;
for (;;) {
int c = getopt_long(argc, argv, "h", tui_options, NULL);
if (c == -1)
break;
switch (c) {
case 'h':
usage();
return 1;
case '?':
usage();
return 1;
}
}
if (optind == argc - 1) {
input_file = argv[optind];
} else if (optind < argc - 1) {
fprintf(stderr, "Expected only 1 file argument.\n");
return 1;
}
if (input_file == NULL) {
fprintf(stderr, "No input file.\n");
usage();
return 1;
}
Field field;
field_init(&field);
Field_load_error fle = field_load_file(input_file, &field);
if (fle != Field_load_error_ok) {
field_deinit(&field);
char const* errstr = "Unknown";
switch (fle) {
case Field_load_error_ok:
break;
case Field_load_error_cant_open_file:
errstr = "Unable to open file";
break;
case Field_load_error_too_many_columns:
errstr = "Grid file has too many columns";
break;
case Field_load_error_too_many_rows:
errstr = "Grid file has too many rows";
break;
case Field_load_error_no_rows_read:
errstr = "Grid file has no rows";
break;
case Field_load_error_not_a_rectangle:
errstr = "Grid file is not a rectangle";
break;
}
fprintf(stderr, "File load error: %s.\n", errstr);
return 1;
}
Markmap_reusable markmap_r;
markmap_reusable_init(&markmap_r);
markmap_reusable_ensure_size(&markmap_r, field.height, field.width);
Bank bank;
bank_init(&bank);
// Enable UTF-8 by explicitly initializing our locale before initializing
// ncurses.
setlocale(LC_ALL, "");
// Initialize ncurses
initscr();
// Allow ncurses to control newline translation. Fine to use with any modern
// terminal, and will let ncurses run faster.
nonl();
// Set interrupt keys (interrupt, break, quit...) to not flush. Helps keep
// ncurses state consistent, at the cost of less responsive terminal
// interrupt. (This will rarely happen.)
intrflush(stdscr, FALSE);
// Receive keyboard input immediately, and receive shift, control, etc. as
// separate events, instead of combined with individual characters.
raw();
// Don't echo keyboard input
noecho();
// Also receive arrow keys, etc.
keypad(stdscr, TRUE);
// Hide the terminal cursor
curs_set(0);
// Don't block on calls like getch() -- have it ERR immediately if the user
// hasn't typed anything. That way we can mix other timers in our code,
// instead of being a slave only to terminal input.
// nodelay(stdscr, TRUE);
Usz tick_num = 0;
for (;;) {
int term_height = getmaxy(stdscr);
int term_width = getmaxx(stdscr);
assert(term_height >= 0 && term_width >= 0);
clear();
draw_debug_field(stdscr, 0, 0, field.buffer, field.height, field.width);
draw_ui_bar(stdscr, term_height - 1, 0, input_file, tick_num);
refresh();
int key;
// ncurses gives us ERR if there was no user input. We'll sleep for 0
// seconds, so that we'll yield CPU time to the OS instead of looping as
// fast as possible. This avoids battery drain/excessive CPU usage. There
// are better ways to do this that waste less CPU, but they require doing a
// little more work on each individual platform (Linux, Mac, etc.)
for (;;) {
key = getch();
if (key != ERR)
break;
sleep(0);
}
if (key == 'q')
break;
// ncurses gives us the special value KEY_RESIZE if the user didn't
// actually type anything, but the terminal resized.
// bool ignored_input = ch < CHAR_MIN || ch > CHAR_MAX || ch == KEY_RESIZE;
if (key == ' ') {
orca_run(field.buffer, markmap_r.buffer, field.height, field.width,
tick_num, &bank);
++tick_num;
}
}
endwin();
markmap_reusable_deinit(&markmap_r);
bank_deinit(&bank);
field_deinit(&field);
return 0;
}