1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/* Copyright (c) 2017, June McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <curses.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <sysexits.h>
#include "torus.h"
static void drawTile(int offsetY, const struct Tile *tile) {
for (uint8_t y = 0; y < CELL_ROWS; ++y) {
for (uint8_t x = 0; x < CELL_COLS; ++x) {
uint8_t color = tile->colors[y][x];
char cell = tile->cells[y][x];
int attrs = COLOR_PAIR(color & ~COLOR_BRIGHT);
if (color & COLOR_BRIGHT) attrs |= A_BOLD;
mvaddch(offsetY + y, x, attrs | cell);
}
}
}
int main(int argc, char *argv[]) {
if (argc != 4) return EX_USAGE;
FILE *fileA = fopen(argv[1], "r");
if (!fileA) err(EX_NOINPUT, "%s", argv[1]);
FILE *fileB = fopen(argv[2], "r");
if (!fileB) err(EX_NOINPUT, "%s", argv[2]);
FILE *fileC = fopen(argv[3], "w");
if (!fileC) err(EX_CANTCREAT, "%s", argv[3]);
initscr();
cbreak();
noecho();
keypad(stdscr, true);
set_escdelay(100);
start_color();
for (int bg = COLOR_BLACK; bg < COLOR_BRIGHT; ++bg) {
for (int fg = COLOR_BLACK; fg < COLOR_BRIGHT; ++fg) {
init_pair(bg << 4 | fg, fg, bg);
}
}
mvhline(CELL_ROWS, 0, 0, CELL_COLS);
mvhline(CELL_ROWS * 2 + 1, 0, 0, CELL_COLS);
mvvline(0, CELL_COLS, 0, CELL_ROWS * 2 + 1);
mvaddch(CELL_ROWS, CELL_COLS, ACS_RTEE);
mvaddch(CELL_ROWS * 2 + 1, CELL_COLS, ACS_LRCORNER);
struct Tile tileA, tileB;
for (;;) {
size_t countA = fread(&tileA, sizeof(tileA), 1, fileA);
if (ferror(fileA)) err(EX_IOERR, "%s", argv[1]);
size_t countB = fread(&tileB, sizeof(tileB), 1, fileB);
if (ferror(fileB)) err(EX_IOERR, "%s", argv[2]);
if (!countA && !countB) break;
if (!countA || !countB) errx(EX_DATAERR, "different size inputs");
const struct Tile *tileC = (tileA.accessTime > tileB.accessTime)
? &tileA
: &tileB;
if (tileA.modifyTime != tileB.modifyTime) {
drawTile(0, &tileA);
drawTile(CELL_ROWS + 1, &tileB);
move(CELL_ROWS * 2 + 2, 0);
refresh();
int c;
do { c = getch(); } while (c != 'a' && c != 'b');
tileC = (c == 'a') ? &tileA : &tileB;
}
fwrite(tileC, sizeof(*tileC), 1, fileC);
if (ferror(fileC)) err(EX_IOERR, "%s", argv[3]);
}
endwin();
return EX_OK;
}
|