ref: c4b6b0106b32cf5180c1463a8104dca368caa4b3
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
}
enum {
Cpair_default = 1,
Cpair_grey = 2,
Tattr_default_bold = A_BOLD | COLOR_PAIR(Cpair_default),
Tattr_boring_glyph = A_DIM | COLOR_PAIR(Cpair_default),
};
void draw_ui_bar(WINDOW* win, int win_y, int win_x, const char* filename,
Usz tick_num) {
wmove(win, win_y, win_x);
wattrset(win, A_DIM | COLOR_PAIR(Cpair_default));
wprintw(win, "%s tick ", filename);
wattrset(win, A_NORMAL);
wprintw(win, "%d", (int)tick_num);
// wprintw(win, " q: quit space: step ");
wclrtoeol(win);
}
void draw_debug_field(WINDOW* win, int win_y, int win_x, Glyph const* gbuffer,
Usz height, Usz width, Usz ruler_spacing_y,
Usz ruler_spacing_x) {
enum { Bufcount = 4096 };
if (width > Bufcount)
return;
chtype buffer[Bufcount];
bool use_rulers = ruler_spacing_y != 0 && ruler_spacing_x != 0;
for (Usz y = 0; y < height; ++y) {
Glyph const* gline = gbuffer + y * width;
bool use_y_ruler = use_rulers && y % ruler_spacing_y == 0;
for (Usz x = 0; x < width; ++x) {
Glyph g = gline[x];
int attr;
if (g == '.') {
attr = Tattr_boring_glyph;
if (use_y_ruler && x % ruler_spacing_x == 0)
g = '+';
} else {
attr = Tattr_default_bold;
}
buffer[x] = (chtype)(g | attr);
}
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);
// Enable color
start_color();
use_default_colors();
init_pair(Cpair_default, -1, -1);
init_pair(Cpair_grey, COLOR_WHITE, -1);
//init_pair(Cpair_gray_default, COLOR_GREY, -1);
Usz tick_num = 0;
for (;;) {
int term_height = getmaxy(stdscr);
int term_width = getmaxx(stdscr);
assert(term_height >= 0 && term_width >= 0);
(void)term_height;
(void)term_width;
// clear();
draw_debug_field(stdscr, 0, 0, field.buffer, field.height, field.width, 8,
8);
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);
}
switch (key) {
case 'q':
goto quit;
case ' ':
orca_run(field.buffer, markmap_r.buffer, field.height, field.width,
tick_num, &bank);
++tick_num;
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;
}
quit:
endwin();
markmap_reusable_deinit(&markmap_r);
bank_deinit(&bank);
field_deinit(&field);
return 0;
}