1 /****************************************************************************
2 * Copyright 2018-2022,2023 Thomas E. Dickey *
3 * Copyright 2017 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
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10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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28 ****************************************************************************/
29
30 /*
31 * Author: Thomas E. Dickey
32 *
33 * $Id: dots_xcurses.c,v 1.29 2023/01/07 17:21:48 tom Exp $
34 *
35 * A simple demo of the wide-curses interface used for comparison with termcap.
36 */
37 #include <test.priv.h>
38
39 #if !defined(_NC_WINDOWS)
40 #include <sys/time.h>
41 #endif
42
43 #include <time.h>
44
45 #if USE_WIDEC_SUPPORT
46
47 #if HAVE_ALLOC_PAIR
48 #define NewPair(n) x_option ? ((void *)&(n)) : NULL
49 #else
50 #define NewPair(n) NULL
51 #endif
52
53 #define InitPair(p,fg,bg) init_pair((short) (p), (short) (fg), (short) (bg))
54
55 static bool interrupted = FALSE;
56 static long total_chars = 0;
57 static time_t started;
58
59 #if HAVE_ALLOC_PAIR
60 static bool x_option = FALSE;
61 #endif
62
63 static void
cleanup(void)64 cleanup(void)
65 {
66 endwin();
67
68 fflush(stdout);
69 fprintf(stderr, "\n\n%ld total cells, rate %.2f/sec\n",
70 total_chars,
71 ((double) (total_chars) / (double) (time((time_t *) 0) - started)));
72 }
73
74 static void
onsig(int n GCC_UNUSED)75 onsig(int n GCC_UNUSED)
76 {
77 interrupted = TRUE;
78 }
79
80 static double
ranf(void)81 ranf(void)
82 {
83 long r = (rand() & 077777);
84 return ((double) r / 32768.);
85 }
86
87 static int
mypair(int fg,int bg)88 mypair(int fg, int bg)
89 {
90 int result;
91 #if HAVE_ALLOC_PAIR
92 if (x_option) {
93 result = alloc_pair(fg, bg);
94 } else
95 #endif
96 {
97 int pair = (fg * COLORS) + bg;
98 result = (pair >= COLOR_PAIRS) ? -1 : pair;
99 }
100 return result;
101 }
102
103 static void
set_colors(int fg,int bg)104 set_colors(int fg, int bg)
105 {
106 int pair = mypair(fg, bg);
107 if (pair > 0) {
108 (void) color_set((short) pair, NewPair(pair));
109 }
110 }
111
112 static void
usage(int ok)113 usage(int ok)
114 {
115 static const char *msg[] =
116 {
117 "Usage: dots_xcurses [options]"
118 ,""
119 ,USAGE_COMMON
120 ,"Options:"
121 ," -T TERM override $TERM"
122 #if HAVE_USE_DEFAULT_COLORS
123 ," -d invoke use_default_colors()"
124 #endif
125 #if HAVE_USE_ENV
126 ," -e allow environment $LINES / $COLUMNS"
127 #endif
128 ," -m SIZE set margin (default: 2)"
129 ," -r SECS self-interrupt/exit after specified number of seconds"
130 ," -s MSECS delay 1% of the time (default: 1 msecs)"
131 #if HAVE_ALLOC_PAIR
132 ," -x use alloc_pair() rather than init_pair()"
133 #endif
134 };
135 size_t n;
136
137 for (n = 0; n < SIZEOF(msg); n++)
138 fprintf(stderr, "%s\n", msg[n]);
139
140 ExitProgram(ok ? EXIT_SUCCESS : EXIT_FAILURE);
141 }
142 /* *INDENT-OFF* */
VERSION_COMMON()143 VERSION_COMMON()
144 /* *INDENT-ON* */
145
146 int
147 main(int argc, char *argv[])
148 {
149 int fg, bg, ch;
150 wchar_t wch[2];
151 double r;
152 double c;
153 #if HAVE_USE_DEFAULT_COLORS
154 bool d_option = FALSE;
155 #endif
156 int m_option = 2;
157 int r_option = 0;
158 int s_option = 1;
159 size_t need;
160 char *my_env;
161
162 while ((ch = getopt(argc, argv, OPTS_COMMON "T:dem:r:s:x")) != -1) {
163 switch (ch) {
164 case 'T':
165 need = 6 + strlen(optarg);
166 if ((my_env = malloc(need)) != NULL) {
167 _nc_SPRINTF(my_env, _nc_SLIMIT(need) "TERM=%s", optarg);
168 putenv(my_env);
169 }
170 break;
171 #if HAVE_USE_DEFAULT_COLORS
172 case 'd':
173 d_option = TRUE;
174 break;
175 #endif
176 #if HAVE_USE_ENV
177 case 'e':
178 use_env(TRUE);
179 break;
180 #endif
181 case 'm':
182 m_option = atoi(optarg);
183 break;
184 case 'r':
185 r_option = atoi(optarg);
186 break;
187 case 's':
188 s_option = atoi(optarg);
189 break;
190 #if HAVE_ALLOC_PAIR
191 case 'x':
192 x_option = TRUE;
193 break;
194 #endif
195 case OPTS_VERSION:
196 show_version(argv);
197 ExitProgram(EXIT_SUCCESS);
198 default:
199 usage(ch == OPTS_USAGE);
200 /* NOTREACHED */
201 }
202 }
203
204 setlocale(LC_ALL, "");
205 srand((unsigned) time(0));
206
207 SetupAlarm(r_option);
208 InitAndCatch(initscr(), onsig);
209 if (has_colors()) {
210 start_color();
211 #if HAVE_USE_DEFAULT_COLORS
212 if (d_option)
213 use_default_colors();
214 #endif
215 #if HAVE_ALLOC_PAIR
216 if (x_option) {
217 ; /* nothing */
218 } else
219 #endif
220 {
221 for (fg = 0; fg < COLORS; fg++) {
222 for (bg = 0; bg < COLORS; bg++) {
223 int pair;
224 if (interrupted) {
225 cleanup();
226 ExitProgram(EXIT_FAILURE);
227 }
228 pair = mypair(fg, bg);
229 if (pair > 0) {
230 InitPair(pair, fg, bg);
231 }
232 }
233 }
234 }
235 }
236
237 r = (double) (LINES - (2 * m_option));
238 c = (double) (COLS - (2 * m_option));
239 started = time((time_t *) 0);
240
241 fg = COLOR_WHITE;
242 bg = COLOR_BLACK;
243 wch[1] = 0;
244 while (!interrupted) {
245 int x = (int) (c * ranf()) + m_option;
246 int y = (int) (r * ranf()) + m_option;
247 int p = (ranf() > 0.9) ? '*' : ' ';
248
249 move(y, x);
250 if (has_colors()) {
251 int z = (int) (ranf() * COLORS);
252 if (ranf() > 0.01) {
253 set_colors(fg = z, bg);
254 } else {
255 set_colors(fg, bg = z);
256 if (s_option)
257 napms(s_option);
258 }
259 } else {
260 if (ranf() <= 0.01) {
261 if (ranf() > 0.6) {
262 attr_on(WA_REVERSE, NULL);
263 } else {
264 attr_off(WA_REVERSE, NULL);
265 }
266 if (s_option)
267 napms(s_option);
268 }
269 }
270 wch[0] = (wchar_t) p;
271 addnwstr(wch, 1);
272 refresh();
273 ++total_chars;
274 }
275 cleanup();
276 ExitProgram(EXIT_SUCCESS);
277 }
278
279 #else
280 int
main(void)281 main(void)
282 {
283 printf("This program requires the wide-ncurses library\n");
284 ExitProgram(EXIT_FAILURE);
285 }
286 #endif
287