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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/* 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/>.
*/
#define _XOPEN_SOURCE_EXTENDED
#include <curses.h>
#include <err.h>
#include <fcntl.h>
#include <locale.h>
#include <stdio.h>
#include <sysexits.h>
#include <wchar.h>
#include "torus.h"
static void curse(void) {
setlocale(LC_CTYPE, "");
initscr();
start_color();
assume_default_colors(0, 0);
if (COLORS >= 16) {
for (short pair = 1; pair < 0x80; ++pair) {
init_pair(pair, pair & 0x0F, (pair & 0xF0) >> 4);
}
} else {
for (short pair = 1; pair < 0100; ++pair) {
init_pair(pair, pair & 007, (pair & 070) >> 3);
}
}
color_set(ColorWhite, NULL);
mvhline(CellRows, 0, 0, CellCols);
mvhline(CellRows * 2 + 1, 0, 0, CellCols);
mvvline(0, CellCols, 0, CellRows * 2 + 1);
mvaddch(CellRows, CellCols, ACS_RTEE);
mvaddch(CellRows * 2 + 1, CellCols, ACS_LRCORNER);
color_set(0, NULL);
cbreak();
noecho();
keypad(stdscr, true);
set_escdelay(100);
}
static attr_t colorAttr(uint8_t color) {
if (COLORS >= 16) return A_NORMAL;
return (color & ColorBright) ? A_BOLD : A_NORMAL;
}
static short colorPair(uint8_t color) {
if (COLORS >= 16) return color;
return (color & 0x70) >> 1 | (color & 0x07);
}
static void drawTile(int offsetY, const struct Tile *tile) {
for (uint8_t cellY = 0; cellY < CellRows; ++cellY) {
for (uint8_t cellX = 0; cellX < CellCols; ++cellX) {
uint8_t color = tile->colors[cellY][cellX];
uint8_t cell = tile->cells[cellY][cellX];
cchar_t cch;
wchar_t wch[] = { CP437[cell], L'\0' };
setcchar(&cch, wch, colorAttr(color), colorPair(color), NULL);
mvadd_wch(offsetY + cellY, cellX, &cch);
}
}
}
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]);
curse();
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");
struct Meta metaA = tileMeta(&tileA);
struct Meta metaB = tileMeta(&tileB);
const struct Tile *tileC = (metaA.accessTime > metaB.accessTime)
? &tileA
: &tileB;
if (metaA.modifyTime != metaB.modifyTime) {
drawTile(0, &tileA);
drawTile(CellRows + 1, &tileB);
move(CellRows * 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;
}
|