1 /* Copyright (c) 2012-2014, Bastien Dejean
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * The views and conclusions contained in the software and documentation are those
25 * of the authors and should not be interpreted as representing official policies,
26 * either expressed or implied, of the FreeBSD Project.
42 monitor_t *make_monitor(xcb_rectangle_t rect)
44 monitor_t *m = malloc(sizeof(monitor_t));
45 snprintf(m->name, sizeof(m->name), "%s%02d", DEFAULT_MON_NAME, ++monitor_uid);
46 m->prev = m->next = NULL;
47 m->desk = m->desk_head = m->desk_tail = NULL;
49 m->top_padding = m->right_padding = m->bottom_padding = m->left_padding = 0;
52 uint32_t mask = XCB_CW_EVENT_MASK;
53 uint32_t values[] = {XCB_EVENT_MASK_ENTER_WINDOW};
54 m->root = xcb_generate_id(dpy);
55 xcb_create_window(dpy, XCB_COPY_FROM_PARENT, m->root, root, rect.x, rect.y, rect.width, rect.height, 0, XCB_WINDOW_CLASS_INPUT_ONLY, XCB_COPY_FROM_PARENT, mask, values);
56 window_lower(m->root);
57 if (focus_follows_pointer)
62 monitor_t *find_monitor(char *name)
64 for (monitor_t *m = mon_head; m != NULL; m = m->next)
65 if (streq(m->name, name))
70 monitor_t *get_monitor_by_id(xcb_randr_output_t id)
72 for (monitor_t *m = mon_head; m != NULL; m = m->next)
78 void embrace_client(monitor_t *m, client_t *c)
80 if ((c->floating_rectangle.x + c->floating_rectangle.width) <= m->rectangle.x)
81 c->floating_rectangle.x = m->rectangle.x;
82 else if (c->floating_rectangle.x >= (m->rectangle.x + m->rectangle.width))
83 c->floating_rectangle.x = (m->rectangle.x + m->rectangle.width) - c->floating_rectangle.width;
84 if ((c->floating_rectangle.y + c->floating_rectangle.height) <= m->rectangle.y)
85 c->floating_rectangle.y = m->rectangle.y;
86 else if (c->floating_rectangle.y >= (m->rectangle.y + m->rectangle.height))
87 c->floating_rectangle.y = (m->rectangle.y + m->rectangle.height) - c->floating_rectangle.height;
90 void translate_client(monitor_t *ms, monitor_t *md, client_t *c)
92 if (frozen_pointer->action != ACTION_NONE || ms == md)
95 /* Clip the rectangle to fit into the monitor. Without this, the fitting
96 * algorithm doesn't work as expected. This also conserves the
97 * out-of-bounds regions */
98 int left_adjust = MAX((ms->rectangle.x - c->floating_rectangle.x), 0);
99 int top_adjust = MAX((ms->rectangle.y - c->floating_rectangle.y), 0);
100 int right_adjust = MAX((c->floating_rectangle.x + c->floating_rectangle.width) - (ms->rectangle.x + ms->rectangle.width), 0);
101 int bottom_adjust = MAX((c->floating_rectangle.y + c->floating_rectangle.height) - (ms->rectangle.y + ms->rectangle.height), 0);
102 c->floating_rectangle.x += left_adjust;
103 c->floating_rectangle.y += top_adjust;
104 c->floating_rectangle.width -= (left_adjust + right_adjust);
105 c->floating_rectangle.height -= (top_adjust + bottom_adjust);
107 int dx_s = c->floating_rectangle.x - ms->rectangle.x;
108 int dy_s = c->floating_rectangle.y - ms->rectangle.y;
110 int nume_x = dx_s * (md->rectangle.width - c->floating_rectangle.width);
111 int nume_y = dy_s * (md->rectangle.height - c->floating_rectangle.height);
113 int deno_x = ms->rectangle.width - c->floating_rectangle.width;
114 int deno_y = ms->rectangle.height - c->floating_rectangle.height;
116 int dx_d = (deno_x == 0 ? 0 : nume_x / deno_x);
117 int dy_d = (deno_y == 0 ? 0 : nume_y / deno_y);
119 /* Translate and undo clipping */
120 c->floating_rectangle.width += left_adjust + right_adjust;
121 c->floating_rectangle.height += top_adjust + bottom_adjust;
122 c->floating_rectangle.x = md->rectangle.x + dx_d - left_adjust;
123 c->floating_rectangle.y = md->rectangle.y + dy_d - top_adjust;
126 void update_root(monitor_t *m)
128 xcb_rectangle_t rect = m->rectangle;
129 window_move_resize(m->root, rect.x, rect.y, rect.width, rect.height);
132 void focus_monitor(monitor_t *m)
137 PRINTF("focus monitor %s\n", m->name);
141 if (pointer_follows_monitor)
144 ewmh_update_current_desktop();
148 monitor_t *add_monitor(xcb_rectangle_t rect)
150 monitor_t *m = make_monitor(rect);
164 void remove_monitor(monitor_t *m)
166 PRINTF("remove monitor %s (0x%X)\n", m->name, m->id);
168 while (m->desk_head != NULL)
169 remove_desktop(m, m->desk_head);
170 monitor_t *prev = m->prev;
171 monitor_t *next = m->next;
172 monitor_t *last_mon = history_get_monitor(m);
184 mon = (last_mon == NULL ? (prev == NULL ? next : prev) : last_mon);
185 if (mon != NULL && mon->desk != NULL)
188 xcb_destroy_window(dpy, m->root);
194 void merge_monitors(monitor_t *ms, monitor_t *md)
196 PRINTF("merge %s into %s\n", ms->name, md->name);
198 desktop_t *d = ms->desk_head;
200 desktop_t *next = d->next;
201 if (d->root != NULL || strstr(d->name, DEFAULT_DESK_NAME) == NULL)
202 transfer_desktop(ms, md, d);
207 void swap_monitors(monitor_t *m1, monitor_t *m2)
209 if (m1 == NULL || m2 == NULL || m1 == m2)
214 else if (mon_head == m2)
218 else if (mon_tail == m2)
221 monitor_t *p1 = m1->prev;
222 monitor_t *n1 = m1->next;
223 monitor_t *p2 = m2->prev;
224 monitor_t *n2 = m2->next;
226 if (p1 != NULL && p1 != m2)
228 if (n1 != NULL && n1 != m2)
230 if (p2 != NULL && p2 != m1)
232 if (n2 != NULL && n2 != m1)
235 m1->prev = p2 == m1 ? m2 : p2;
236 m1->next = n2 == m1 ? m2 : n2;
237 m2->prev = p1 == m2 ? m1 : p1;
238 m2->next = n1 == m2 ? m1 : n1;
240 ewmh_update_wm_desktops();
241 ewmh_update_desktop_names();
242 ewmh_update_current_desktop();
246 monitor_t *closest_monitor(monitor_t *m, cycle_dir_t dir, desktop_select_t sel)
248 monitor_t *f = (dir == CYCLE_PREV ? m->prev : m->next);
250 f = (dir == CYCLE_PREV ? mon_tail : mon_head);
253 coordinates_t loc = {m, m->desk, NULL};
254 if (desktop_matches(&loc, &loc, sel))
256 f = (dir == CYCLE_PREV ? m->prev : m->next);
258 f = (dir == CYCLE_PREV ? mon_tail : mon_head);
264 bool is_inside_monitor(monitor_t *m, xcb_point_t pt)
266 xcb_rectangle_t r = m->rectangle;
267 return (r.x <= pt.x && pt.x < (r.x + r.width)
268 && r.y <= pt.y && pt.y < (r.y + r.height));
271 monitor_t *monitor_from_point(xcb_point_t pt)
273 for (monitor_t *m = mon_head; m != NULL; m = m->next)
274 if (is_inside_monitor(m, pt))
279 monitor_t *monitor_from_client(client_t *c)
281 xcb_point_t pt = {c->floating_rectangle.x, c->floating_rectangle.y};
282 monitor_t *nearest = monitor_from_point(pt);
283 if (nearest == NULL) {
284 int x = (c->floating_rectangle.x + c->floating_rectangle.width) / 2;
285 int y = (c->floating_rectangle.y + c->floating_rectangle.height) / 2;
287 for (monitor_t *m = mon_head; m != NULL; m = m->next) {
288 xcb_rectangle_t r = m->rectangle;
289 int d = abs((r.x + r.width / 2) - x) + abs((r.y + r.height / 2) - y);
299 monitor_t *nearest_monitor(monitor_t *m, direction_t dir, desktop_select_t sel)
302 monitor_t *nearest = NULL;
303 xcb_rectangle_t rect = m->rectangle;
304 for (monitor_t *f = mon_head; f != NULL; f = f->next) {
307 coordinates_t loc = {f, f->desk, NULL};
308 if (!desktop_matches(&loc, &loc, sel))
310 xcb_rectangle_t r = f->rectangle;
311 if ((dir == DIR_LEFT && r.x < rect.x) ||
312 (dir == DIR_RIGHT && r.x >= (rect.x + rect.width)) ||
313 (dir == DIR_UP && r.y < rect.y) ||
314 (dir == DIR_DOWN && r.y >= (rect.y + rect.height))) {
315 int d = abs((r.x + r.width / 2) - (rect.x + rect.width / 2)) +
316 abs((r.y + r.height / 2) - (rect.y + rect.height / 2));
326 bool update_monitors(void)
328 PUTS("update monitors");
329 xcb_randr_get_screen_resources_current_reply_t *sres = xcb_randr_get_screen_resources_current_reply(dpy, xcb_randr_get_screen_resources_current(dpy, root), NULL);
333 monitor_t *m, *mm = NULL;
335 int len = xcb_randr_get_screen_resources_current_outputs_length(sres);
336 xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_current_outputs(sres);
338 xcb_randr_get_output_info_cookie_t cookies[len];
339 for (int i = 0; i < len; i++)
340 cookies[i] = xcb_randr_get_output_info(dpy, outputs[i], XCB_CURRENT_TIME);
342 for (m = mon_head; m != NULL; m = m->next)
345 for (int i = 0; i < len; i++) {
346 xcb_randr_get_output_info_reply_t *info = xcb_randr_get_output_info_reply(dpy, cookies[i], NULL);
348 if (info->crtc != XCB_NONE) {
349 xcb_randr_get_crtc_info_reply_t *cir = xcb_randr_get_crtc_info_reply(dpy, xcb_randr_get_crtc_info(dpy, info->crtc, XCB_CURRENT_TIME), NULL);
351 xcb_rectangle_t rect = (xcb_rectangle_t) {cir->x, cir->y, cir->width, cir->height};
352 mm = get_monitor_by_id(outputs[i]);
354 mm->rectangle = rect;
356 for (desktop_t *d = mm->desk_head; d != NULL; d = d->next)
357 for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root))
358 translate_client(mm, mm, n->client);
359 arrange(mm, mm->desk);
361 PRINTF("update monitor %s (0x%X)\n", mm->name, mm->id);
363 mm = add_monitor(rect);
364 char *name = (char *)xcb_randr_get_output_info_name(info);
365 size_t name_len = MIN(sizeof(mm->name), (size_t)xcb_randr_get_output_info_name_length(info) + 1);
366 snprintf(mm->name, name_len, "%s", name);
368 PRINTF("add monitor %s (0x%X)\n", mm->name, mm->id);
372 } else if (!remove_disabled_monitors && info->connection != XCB_RANDR_CONNECTION_DISCONNECTED) {
373 m = get_monitor_by_id(outputs[i]);
381 /* initially focus the primary monitor and add the first desktop to it */
382 xcb_randr_get_output_primary_reply_t *gpo = xcb_randr_get_output_primary_reply(dpy, xcb_randr_get_output_primary(dpy, root), NULL);
384 pri_mon = get_monitor_by_id(gpo->output);
385 if (!running && pri_mon != NULL) {
388 add_desktop(pri_mon, make_desktop(NULL));
389 ewmh_update_current_desktop();
394 /* handle overlapping monitors */
395 if (merge_overlapping_monitors) {
398 monitor_t *next = m->next;
400 for (monitor_t *mb = mon_head; mb != NULL; mb = mb->next)
401 if (mb != m && mb->wired &&
402 (m->desk == NULL || mb->desk == NULL) &&
403 contains(mb->rectangle, m->rectangle)) {
406 merge_monitors(m, mb);
415 /* merge and remove disconnected monitors */
416 if (remove_unplugged_monitors) {
419 monitor_t *next = m->next;
421 merge_monitors(m, mm);
428 /* add one desktop to each new monitor */
429 for (m = mon_head; m != NULL; m = m->next)
430 if (m->desk == NULL && (running || pri_mon == NULL || m != pri_mon))
431 add_desktop(m, make_desktop(NULL));
433 if (!running && pri_mon != NULL && mon_head != pri_mon)
434 swap_monitors(mon_head, pri_mon);
437 update_motion_recorder();
438 return (num_monitors > 0);