/src/tmux/window-clock.c

Source
/* $OpenBSD: window-clock.c,v 1.35 2026/07/14 17:17:18 nicm Exp $ */

/*
 * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>

#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "tmux.h"

static struct screen *window_clock_init(struct window_mode_entry *,
         struct cmdq_item *, struct cmd_find_state *,
         struct args *);
static void window_clock_free(struct window_mode_entry *);
static void window_clock_resize(struct window_mode_entry *, u_int, u_int);
static void window_clock_key(struct window_mode_entry *, struct client *,
         struct session *, struct winlink *, key_code,
         struct mouse_event *);

static void window_clock_timer_callback(int, short, void *);
static void window_clock_draw_screen(struct window_mode_entry *);

const struct window_mode window_clock_mode = {
  .name = "clock-mode",

  .init = window_clock_init,
  .free = window_clock_free,
  .resize = window_clock_resize,
  .key = window_clock_key,
};

struct window_clock_mode_data {
  struct screen   screen;
  time_t      tim;
  struct event    timer;
};

const char window_clock_table[14][5][5] = {
  { { 1,1,1,1,1 }, /* 0 */
    { 1,0,0,0,1 },
    { 1,0,0,0,1 },
    { 1,0,0,0,1 },
    { 1,1,1,1,1 } },
  { { 0,0,0,0,1 }, /* 1 */
    { 0,0,0,0,1 },
    { 0,0,0,0,1 },
    { 0,0,0,0,1 },
    { 0,0,0,0,1 } },
  { { 1,1,1,1,1 }, /* 2 */
    { 0,0,0,0,1 },
    { 1,1,1,1,1 },
    { 1,0,0,0,0 },
    { 1,1,1,1,1 } },
  { { 1,1,1,1,1 }, /* 3 */
    { 0,0,0,0,1 },
    { 1,1,1,1,1 },
    { 0,0,0,0,1 },
    { 1,1,1,1,1 } },
  { { 1,0,0,0,1 }, /* 4 */
    { 1,0,0,0,1 },
    { 1,1,1,1,1 },
    { 0,0,0,0,1 },
    { 0,0,0,0,1 } },
  { { 1,1,1,1,1 }, /* 5 */
    { 1,0,0,0,0 },
    { 1,1,1,1,1 },
    { 0,0,0,0,1 },
    { 1,1,1,1,1 } },
  { { 1,1,1,1,1 }, /* 6 */
    { 1,0,0,0,0 },
    { 1,1,1,1,1 },
    { 1,0,0,0,1 },
    { 1,1,1,1,1 } },
  { { 1,1,1,1,1 }, /* 7 */
    { 0,0,0,0,1 },
    { 0,0,0,0,1 },
    { 0,0,0,0,1 },
    { 0,0,0,0,1 } },
  { { 1,1,1,1,1 }, /* 8 */
    { 1,0,0,0,1 },
    { 1,1,1,1,1 },
    { 1,0,0,0,1 },
    { 1,1,1,1,1 } },
  { { 1,1,1,1,1 }, /* 9 */
    { 1,0,0,0,1 },
    { 1,1,1,1,1 },
    { 0,0,0,0,1 },
    { 1,1,1,1,1 } },
  { { 0,0,0,0,0 }, /* : */
    { 0,0,1,0,0 },
    { 0,0,0,0,0 },
    { 0,0,1,0,0 },
    { 0,0,0,0,0 } },
  { { 1,1,1,1,1 }, /* A */
    { 1,0,0,0,1 },
    { 1,1,1,1,1 },
    { 1,0,0,0,1 },
    { 1,0,0,0,1 } },
  { { 1,1,1,1,1 }, /* P */
    { 1,0,0,0,1 },
    { 1,1,1,1,1 },
    { 1,0,0,0,0 },
    { 1,0,0,0,0 } },
  { { 1,0,0,0,1 }, /* M */
    { 1,1,0,1,1 },
    { 1,0,1,0,1 },
    { 1,0,0,0,1 },
    { 1,0,0,0,1 } },
};

static void
window_clock_start_timer(struct window_mode_entry *wme)
{
  struct window_clock_mode_data *data = wme->data;
  struct timeval       tv;
  struct timespec      ts;
  long         delay;

  clock_gettime(CLOCK_REALTIME, &ts);
  delay = 1000000 - (ts.tv_nsec / 1000);

  tv.tv_sec = delay / 1000000;
  tv.tv_usec = delay % 1000000;
  if (tv.tv_sec < 0 || (tv.tv_sec == 0 && tv.tv_usec <= 0)) {
    tv.tv_sec = 1;
    tv.tv_usec = 0;
  }
  evtimer_add(&data->timer, &tv);
}

static void
window_clock_timer_callback(__unused int fd, __unused short events, void *arg)
{
  struct window_mode_entry  *wme = arg;
  struct window_pane    *wp = wme->wp;
  struct window_clock_mode_data *data = wme->data;
  struct tm      now, then;
  time_t         t;

  evtimer_del(&data->timer);

  t = time(NULL);
  gmtime_r(&t, &now);
  gmtime_r(&data->tim, &then);

  if (now.tm_sec != then.tm_sec) {
    data->tim = t;
    window_clock_draw_screen(wme);
    wp->flags |= PANE_REDRAW;
  }

  window_clock_start_timer(wme);
}

static struct screen *
window_clock_init(struct window_mode_entry *wme,
    __unused struct cmdq_item *item, __unused struct cmd_find_state *fs,
    __unused struct args *args)
{
  struct window_pane    *wp = wme->wp;
  struct window_clock_mode_data *data;
  struct screen     *s;

  wme->data = data = xcalloc(1, sizeof *data);
  data->tim = time(NULL);

  evtimer_set(&data->timer, window_clock_timer_callback, wme);
  window_clock_start_timer(wme);

  s = &data->screen;
  screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
  s->mode &= ~MODE_CURSOR;

  window_clock_draw_screen(wme);

  return (s);
}

static void
window_clock_free(struct window_mode_entry *wme)
{
  struct window_clock_mode_data *data = wme->data;

  evtimer_del(&data->timer);
  screen_free(&data->screen);
  free(data);
}

static void
window_clock_resize(struct window_mode_entry *wme, u_int sx, u_int sy)
{
  struct window_clock_mode_data *data = wme->data;
  struct screen     *s = &data->screen;

  screen_resize(s, sx, sy, 0);
  window_clock_draw_screen(wme);
}

static void
window_clock_key(struct window_mode_entry *wme, __unused struct client *c,
    __unused struct session *s, __unused struct winlink *wl,
    __unused key_code key, __unused struct mouse_event *m)
{
  window_pane_reset_mode(wme->wp);
}

static void
window_clock_draw_screen(struct window_mode_entry *wme)
{
  struct window_pane    *wp = wme->wp;
  struct window     *w = wp->window;
  struct window_clock_mode_data *data = wme->data;
  struct screen_write_ctx    ctx;
  int        colour, style;
  struct screen     *s = &data->screen;
  struct grid_cell     gc;
  struct format_tree    *ft;
  char         tim[64], *ptr;
  time_t         t;
  struct tm     *tm;
  u_int        i, j, x, y, idx;

  ft = format_create_defaults(NULL, NULL, NULL, NULL, wp);
  style_apply(&gc, w->options, "clock-mode-colour", ft);
  format_free(ft);
  colour = gc.fg;
  style = options_get_number(w->options, "clock-mode-style");

  screen_write_start(&ctx, s);

  t = time(NULL);
  tm = localtime(&t);
  if (style == 0 || style == 2) {
    if (style == 2)
      strftime(tim, sizeof tim, "%l:%M:%S ", localtime(&t));
    else
      strftime(tim, sizeof tim, "%l:%M ", localtime(&t));
    if (tm->tm_hour >= 12)
      strlcat(tim, "PM", sizeof tim);
    else
      strlcat(tim, "AM", sizeof tim);
  } else {
    if (style == 3)
      strftime(tim, sizeof tim, "%H:%M:%S", tm);
    else
      strftime(tim, sizeof tim, "%H:%M", tm);
  }

  screen_write_clearscreen(&ctx, 8);

  if (screen_size_x(s) < 6 * strlen(tim) || screen_size_y(s) < 6) {
    if (screen_size_x(s) >= strlen(tim) && screen_size_y(s) != 0) {
      x = (screen_size_x(s) / 2) - (strlen(tim) / 2);
      y = screen_size_y(s) / 2;
      screen_write_cursormove(&ctx, x, y, 0);

      memcpy(&gc, &grid_default_cell, sizeof gc);
      gc.flags |= GRID_FLAG_NOPALETTE;
      gc.fg = colour;
      screen_write_puts(&ctx, &gc, "%s", tim);
    }

    screen_write_stop(&ctx);
    return;
  }

  x = (screen_size_x(s) / 2) - 3 * strlen(tim);
  y = (screen_size_y(s) / 2) - 3;

  memcpy(&gc, &grid_default_cell, sizeof gc);
  gc.flags |= GRID_FLAG_NOPALETTE;
  gc.bg = colour;
  gc.fg = colour;
  for (ptr = tim; *ptr != '\0'; ptr++) {
    if (*ptr >= '0' && *ptr <= '9')
      idx = *ptr - '0';
    else if (*ptr == ':')
      idx = 10;
    else if (*ptr == 'A')
      idx = 11;
    else if (*ptr == 'P')
      idx = 12;
    else if (*ptr == 'M')
      idx = 13;
    else {
      x += 6;
      continue;
    }

    for (j = 0; j < 5; j++) {
      for (i = 0; i < 5; i++) {
        screen_write_cursormove(&ctx, x + i, y + j, 0);
        if (window_clock_table[idx][j][i])
          screen_write_putc(&ctx, &gc, '#');
      }
    }
    x += 6;
  }

  screen_write_stop(&ctx);
}

Coverage Report

Created: 2026-07-16 06:55

Line	Count	Source
1		/* $OpenBSD: window-clock.c,v 1.35 2026/07/14 17:17:18 nicm Exp $ */
2
3		/*
4		* Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
5		*
6		* Permission to use, copy, modify, and distribute this software for any
7		* purpose with or without fee is hereby granted, provided that the above
8		* copyright notice and this permission notice appear in all copies.
9		*
10		* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11		* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12		* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13		* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14		* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15		* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16		* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17		*/
18
19		#include <sys/types.h>
20
21		#include <stdlib.h>
22		#include <string.h>
23		#include <time.h>
24
25		#include "tmux.h"
26
27		static struct screen window_clock_init(struct window_mode_entry ,
28		struct cmdq_item , struct cmd_find_state ,
29		struct args *);
30		static void window_clock_free(struct window_mode_entry *);
31		static void window_clock_resize(struct window_mode_entry *, u_int, u_int);
32		static void window_clock_key(struct window_mode_entry , struct client ,
33		struct session , struct winlink , key_code,
34		struct mouse_event *);
35
36		static void window_clock_timer_callback(int, short, void *);
37		static void window_clock_draw_screen(struct window_mode_entry *);
38
39		const struct window_mode window_clock_mode = {
40		.name = "clock-mode",
41
42		.init = window_clock_init,
43		.free = window_clock_free,
44		.resize = window_clock_resize,
45		.key = window_clock_key,
46		};
47
48		struct window_clock_mode_data {
49		struct screen screen;
50		time_t tim;
51		struct event timer;
52		};
53
54		const char window_clock_table[14][5][5] = {
55		{ { 1,1,1,1,1 }, /* 0 */
56		{ 1,0,0,0,1 },
57		{ 1,0,0,0,1 },
58		{ 1,0,0,0,1 },
59		{ 1,1,1,1,1 } },
60		{ { 0,0,0,0,1 }, /* 1 */
61		{ 0,0,0,0,1 },
62		{ 0,0,0,0,1 },
63		{ 0,0,0,0,1 },
64		{ 0,0,0,0,1 } },
65		{ { 1,1,1,1,1 }, /* 2 */
66		{ 0,0,0,0,1 },
67		{ 1,1,1,1,1 },
68		{ 1,0,0,0,0 },
69		{ 1,1,1,1,1 } },
70		{ { 1,1,1,1,1 }, /* 3 */
71		{ 0,0,0,0,1 },
72		{ 1,1,1,1,1 },
73		{ 0,0,0,0,1 },
74		{ 1,1,1,1,1 } },
75		{ { 1,0,0,0,1 }, /* 4 */
76		{ 1,0,0,0,1 },
77		{ 1,1,1,1,1 },
78		{ 0,0,0,0,1 },
79		{ 0,0,0,0,1 } },
80		{ { 1,1,1,1,1 }, /* 5 */
81		{ 1,0,0,0,0 },
82		{ 1,1,1,1,1 },
83		{ 0,0,0,0,1 },
84		{ 1,1,1,1,1 } },
85		{ { 1,1,1,1,1 }, /* 6 */
86		{ 1,0,0,0,0 },
87		{ 1,1,1,1,1 },
88		{ 1,0,0,0,1 },
89		{ 1,1,1,1,1 } },
90		{ { 1,1,1,1,1 }, /* 7 */
91		{ 0,0,0,0,1 },
92		{ 0,0,0,0,1 },
93		{ 0,0,0,0,1 },
94		{ 0,0,0,0,1 } },
95		{ { 1,1,1,1,1 }, /* 8 */
96		{ 1,0,0,0,1 },
97		{ 1,1,1,1,1 },
98		{ 1,0,0,0,1 },
99		{ 1,1,1,1,1 } },
100		{ { 1,1,1,1,1 }, /* 9 */
101		{ 1,0,0,0,1 },
102		{ 1,1,1,1,1 },
103		{ 0,0,0,0,1 },
104		{ 1,1,1,1,1 } },
105		{ { 0,0,0,0,0 }, /* : */
106		{ 0,0,1,0,0 },
107		{ 0,0,0,0,0 },
108		{ 0,0,1,0,0 },
109		{ 0,0,0,0,0 } },
110		{ { 1,1,1,1,1 }, /* A */
111		{ 1,0,0,0,1 },
112		{ 1,1,1,1,1 },
113		{ 1,0,0,0,1 },
114		{ 1,0,0,0,1 } },
115		{ { 1,1,1,1,1 }, /* P */
116		{ 1,0,0,0,1 },
117		{ 1,1,1,1,1 },
118		{ 1,0,0,0,0 },
119		{ 1,0,0,0,0 } },
120		{ { 1,0,0,0,1 }, /* M */
121		{ 1,1,0,1,1 },
122		{ 1,0,1,0,1 },
123		{ 1,0,0,0,1 },
124		{ 1,0,0,0,1 } },
125		};
126
127		static void
128		window_clock_start_timer(struct window_mode_entry *wme)
129	0	{
130	0	struct window_clock_mode_data *data = wme->data;
131	0	struct timeval tv;
132	0	struct timespec ts;
133	0	long delay;
134
135	0	clock_gettime(CLOCK_REALTIME, &ts);
136	0	delay = 1000000 - (ts.tv_nsec / 1000);
137
138	0	tv.tv_sec = delay / 1000000;
139	0	tv.tv_usec = delay % 1000000;
140	0	if (tv.tv_sec < 0 \|\| (tv.tv_sec == 0 && tv.tv_usec <= 0)) {
141	0	tv.tv_sec = 1;
142	0	tv.tv_usec = 0;
143	0	}
144	0	evtimer_add(&data->timer, &tv);
145	0	}
146
147		static void
148		window_clock_timer_callback(__unused int fd, __unused short events, void *arg)
149	0	{
150	0	struct window_mode_entry *wme = arg;
151	0	struct window_pane *wp = wme->wp;
152	0	struct window_clock_mode_data *data = wme->data;
153	0	struct tm now, then;
154	0	time_t t;
155
156	0	evtimer_del(&data->timer);
157
158	0	t = time(NULL);
159	0	gmtime_r(&t, &now);
160	0	gmtime_r(&data->tim, &then);
161
162	0	if (now.tm_sec != then.tm_sec) {
163	0	data->tim = t;
164	0	window_clock_draw_screen(wme);
165	0	wp->flags \|= PANE_REDRAW;
166	0	}
167
168	0	window_clock_start_timer(wme);
169	0	}
170
171		static struct screen *
172		window_clock_init(struct window_mode_entry *wme,
173		__unused struct cmdq_item item, __unused struct cmd_find_state fs,
174		__unused struct args *args)
175	0	{
176	0	struct window_pane *wp = wme->wp;
177	0	struct window_clock_mode_data *data;
178	0	struct screen *s;
179
180	0	wme->data = data = xcalloc(1, sizeof *data);
181	0	data->tim = time(NULL);
182
183	0	evtimer_set(&data->timer, window_clock_timer_callback, wme);
184	0	window_clock_start_timer(wme);
185
186	0	s = &data->screen;
187	0	screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
188	0	s->mode &= ~MODE_CURSOR;
189
190	0	window_clock_draw_screen(wme);
191
192	0	return (s);
193	0	}
194
195		static void
196		window_clock_free(struct window_mode_entry *wme)
197	0	{
198	0	struct window_clock_mode_data *data = wme->data;
199
200	0	evtimer_del(&data->timer);
201	0	screen_free(&data->screen);
202	0	free(data);
203	0	}
204
205		static void
206		window_clock_resize(struct window_mode_entry *wme, u_int sx, u_int sy)
207	0	{
208	0	struct window_clock_mode_data *data = wme->data;
209	0	struct screen *s = &data->screen;
210
211	0	screen_resize(s, sx, sy, 0);
212	0	window_clock_draw_screen(wme);
213	0	}
214
215		static void
216		window_clock_key(struct window_mode_entry wme, __unused struct client c,
217		__unused struct session s, __unused struct winlink wl,
218		__unused key_code key, __unused struct mouse_event *m)
219	0	{
220	0	window_pane_reset_mode(wme->wp);
221	0	}
222
223		static void
224		window_clock_draw_screen(struct window_mode_entry *wme)
225	0	{
226	0	struct window_pane *wp = wme->wp;
227	0	struct window *w = wp->window;
228	0	struct window_clock_mode_data *data = wme->data;
229	0	struct screen_write_ctx ctx;
230	0	int colour, style;
231	0	struct screen *s = &data->screen;
232	0	struct grid_cell gc;
233	0	struct format_tree *ft;
234	0	char tim[64], *ptr;
235	0	time_t t;
236	0	struct tm *tm;
237	0	u_int i, j, x, y, idx;
238
239	0	ft = format_create_defaults(NULL, NULL, NULL, NULL, wp);
240	0	style_apply(&gc, w->options, "clock-mode-colour", ft);
241	0	format_free(ft);
242	0	colour = gc.fg;
243	0	style = options_get_number(w->options, "clock-mode-style");
244
245	0	screen_write_start(&ctx, s);
246
247	0	t = time(NULL);
248	0	tm = localtime(&t);
249	0	if (style == 0 \|\| style == 2) {
250	0	if (style == 2)
251	0	strftime(tim, sizeof tim, "%l:%M:%S ", localtime(&t));
252	0	else
253	0	strftime(tim, sizeof tim, "%l:%M ", localtime(&t));
254	0	if (tm->tm_hour >= 12)
255	0	strlcat(tim, "PM", sizeof tim);
256	0	else
257	0	strlcat(tim, "AM", sizeof tim);
258	0	} else {
259	0	if (style == 3)
260	0	strftime(tim, sizeof tim, "%H:%M:%S", tm);
261	0	else
262	0	strftime(tim, sizeof tim, "%H:%M", tm);
263	0	}
264
265	0	screen_write_clearscreen(&ctx, 8);
266
267	0	if (screen_size_x(s) < 6 * strlen(tim) \|\| screen_size_y(s) < 6) {
268	0	if (screen_size_x(s) >= strlen(tim) && screen_size_y(s) != 0) {
269	0	x = (screen_size_x(s) / 2) - (strlen(tim) / 2);
270	0	y = screen_size_y(s) / 2;
271	0	screen_write_cursormove(&ctx, x, y, 0);
272
273	0	memcpy(&gc, &grid_default_cell, sizeof gc);
274	0	gc.flags \|= GRID_FLAG_NOPALETTE;
275	0	gc.fg = colour;
276	0	screen_write_puts(&ctx, &gc, "%s", tim);
277	0	}
278
279	0	screen_write_stop(&ctx);
280	0	return;
281	0	}
282
283	0	x = (screen_size_x(s) / 2) - 3 * strlen(tim);
284	0	y = (screen_size_y(s) / 2) - 3;
285
286	0	memcpy(&gc, &grid_default_cell, sizeof gc);
287	0	gc.flags \|= GRID_FLAG_NOPALETTE;
288	0	gc.bg = colour;
289	0	gc.fg = colour;
290	0	for (ptr = tim; *ptr != '\0'; ptr++) {
291	0	if (ptr >= '0' && ptr <= '9')
292	0	idx = *ptr - '0';
293	0	else if (*ptr == ':')
294	0	idx = 10;
295	0	else if (*ptr == 'A')
296	0	idx = 11;
297	0	else if (*ptr == 'P')
298	0	idx = 12;
299	0	else if (*ptr == 'M')
300	0	idx = 13;
301	0	else {
302	0	x += 6;
303	0	continue;
304	0	}
305
306	0	for (j = 0; j < 5; j++) {
307	0	for (i = 0; i < 5; i++) {
308	0	screen_write_cursormove(&ctx, x + i, y + j, 0);
309	0	if (window_clock_table[idx][j][i])
310	0	screen_write_putc(&ctx, &gc, '#');
311	0	}
312	0	}
313	0	x += 6;
314	0	}
315
316	0	screen_write_stop(&ctx);
317	0	}