1 /* * Copyright (c) 2012-2013 Bastien Dejean
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation and/or
11 * other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 ON
20 * 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.
38 monitor_t *make_monitor(xcb_rectangle_t rect)
40 monitor_t *m = malloc(sizeof(monitor_t));
41 snprintf(m->name, sizeof(m->name), "%s%02d", DEFAULT_MON_NAME, ++monitor_uid);
42 m->prev = m->next = NULL;
43 m->desk = m->desk_head = m->desk_tail = NULL;
45 m->top_padding = m->right_padding = m->bottom_padding = m->left_padding = 0;
48 uint32_t mask = XCB_CW_EVENT_MASK;
49 uint32_t values[] = {XCB_EVENT_MASK_ENTER_WINDOW};
50 m->root = xcb_generate_id(dpy);
51 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);
52 window_lower(m->root);
53 if (focus_follows_pointer)
58 monitor_t *find_monitor(char *name)
60 for (monitor_t *m = mon_head; m != NULL; m = m->next)
61 if (streq(m->name, name))
66 monitor_t *get_monitor_by_id(xcb_randr_output_t id)
68 for (monitor_t *m = mon_head; m != NULL; m = m->next)
74 void translate_client(monitor_t *ms, monitor_t *md, client_t *c)
76 if (frozen_pointer->action != ACTION_NONE || ms == md)
79 /* Clip the rectangle to fit into the monitor. Without this, the fitting
80 * algorithm doesn't work as expected. This also conserves the
81 * out-of-bounds regions */
82 int left_adjust = MAX((ms->rectangle.x - c->floating_rectangle.x), 0);
83 int top_adjust = MAX((ms->rectangle.y - c->floating_rectangle.y), 0);
84 int right_adjust = MAX((c->floating_rectangle.x + c->floating_rectangle.width) - (ms->rectangle.x + ms->rectangle.width), 0);
85 int bottom_adjust = MAX((c->floating_rectangle.y + c->floating_rectangle.height) - (ms->rectangle.y + ms->rectangle.height), 0);
86 c->floating_rectangle.x += left_adjust;
87 c->floating_rectangle.y += top_adjust;
88 c->floating_rectangle.width -= (left_adjust + right_adjust);
89 c->floating_rectangle.height -= (top_adjust + bottom_adjust);
91 int dx_s = c->floating_rectangle.x - ms->rectangle.x;
92 int dy_s = c->floating_rectangle.y - ms->rectangle.y;
94 int nume_x = dx_s * (md->rectangle.width - c->floating_rectangle.width);
95 int nume_y = dy_s * (md->rectangle.height - c->floating_rectangle.height);
97 int deno_x = ms->rectangle.width - c->floating_rectangle.width;
98 int deno_y = ms->rectangle.height - c->floating_rectangle.height;
100 int dx_d = (deno_x == 0 ? 0 : nume_x / deno_x);
101 int dy_d = (deno_y == 0 ? 0 : nume_y / deno_y);
103 /* Translate and undo clipping */
104 c->floating_rectangle.width += left_adjust + right_adjust;
105 c->floating_rectangle.height += top_adjust + bottom_adjust;
106 c->floating_rectangle.x = md->rectangle.x + dx_d - left_adjust;
107 c->floating_rectangle.y = md->rectangle.y + dy_d - top_adjust;
110 void update_root(monitor_t *m)
112 xcb_rectangle_t rect = m->rectangle;
113 window_move_resize(m->root, rect.x, rect.y, rect.width, rect.height);
116 void focus_monitor(monitor_t *m)
121 PRINTF("focus monitor %s\n", m->name);
125 if (pointer_follows_monitor)
128 ewmh_update_current_desktop();
132 monitor_t *add_monitor(xcb_rectangle_t rect)
134 monitor_t *m = make_monitor(rect);
148 void remove_monitor(monitor_t *m)
150 PRINTF("remove monitor %s (0x%X)\n", m->name, m->id);
152 while (m->desk_head != NULL)
153 remove_desktop(m, m->desk_head);
154 monitor_t *prev = m->prev;
155 monitor_t *next = m->next;
156 monitor_t *last_mon = history_get_monitor(m);
168 mon = (last_mon == NULL ? (prev == NULL ? next : prev) : last_mon);
169 if (mon != NULL && mon->desk != NULL)
172 xcb_destroy_window(dpy, m->root);
178 void merge_monitors(monitor_t *ms, monitor_t *md)
180 PRINTF("merge %s into %s\n", ms->name, md->name);
182 desktop_t *d = ms->desk_head;
184 desktop_t *next = d->next;
185 if (d->root != NULL || strstr(d->name, DEFAULT_DESK_NAME) == NULL)
186 transfer_desktop(ms, md, d);
191 void swap_monitors(monitor_t *m1, monitor_t *m2)
193 if (m1 == NULL || m2 == NULL || m1 == m2)
198 else if (mon_head == m2)
202 else if (mon_tail == m2)
205 monitor_t *p1 = m1->prev;
206 monitor_t *n1 = m1->next;
207 monitor_t *p2 = m2->prev;
208 monitor_t *n2 = m2->next;
210 if (p1 != NULL && p1 != m2)
212 if (n1 != NULL && n1 != m2)
214 if (p2 != NULL && p2 != m1)
216 if (n2 != NULL && n2 != m1)
219 m1->prev = p2 == m1 ? m2 : p2;
220 m1->next = n2 == m1 ? m2 : n2;
221 m2->prev = p1 == m2 ? m1 : p1;
222 m2->next = n1 == m2 ? m1 : n1;
224 ewmh_update_wm_desktops();
225 ewmh_update_desktop_names();
226 ewmh_update_current_desktop();
230 monitor_t *closest_monitor(monitor_t *m, cycle_dir_t dir, desktop_select_t sel)
232 monitor_t *f = (dir == CYCLE_PREV ? m->prev : m->next);
234 f = (dir == CYCLE_PREV ? mon_tail : mon_head);
237 coordinates_t loc = {m, m->desk, NULL};
238 if (desktop_matches(&loc, &loc, sel))
240 f = (dir == CYCLE_PREV ? m->prev : m->next);
242 f = (dir == CYCLE_PREV ? mon_tail : mon_head);
248 bool is_inside_monitor(monitor_t *m, xcb_point_t pt)
250 xcb_rectangle_t r = m->rectangle;
251 return (r.x <= pt.x && pt.x < (r.x + r.width)
252 && r.y <= pt.y && pt.y < (r.y + r.height));
255 monitor_t *monitor_from_point(xcb_point_t pt)
257 for (monitor_t *m = mon_head; m != NULL; m = m->next)
258 if (is_inside_monitor(m, pt))
263 monitor_t *monitor_from_client(client_t *c)
265 xcb_point_t pt = {c->floating_rectangle.x, c->floating_rectangle.y};
266 monitor_t *nearest = monitor_from_point(pt);
267 if (nearest == NULL) {
268 int x = (c->floating_rectangle.x + c->floating_rectangle.width) / 2;
269 int y = (c->floating_rectangle.y + c->floating_rectangle.height) / 2;
271 for (monitor_t *m = mon_head; m != NULL; m = m->next) {
272 xcb_rectangle_t r = m->rectangle;
273 int d = abs((r.x + r.width / 2) - x) + abs((r.y + r.height / 2) - y);
283 monitor_t *nearest_monitor(monitor_t *m, direction_t dir, desktop_select_t sel)
286 monitor_t *nearest = NULL;
287 xcb_rectangle_t rect = m->rectangle;
288 for (monitor_t *f = mon_head; f != NULL; f = f->next) {
291 coordinates_t loc = {f, f->desk, NULL};
292 if (!desktop_matches(&loc, &loc, sel))
294 xcb_rectangle_t r = f->rectangle;
295 if ((dir == DIR_LEFT && r.x < rect.x) ||
296 (dir == DIR_RIGHT && r.x >= (rect.x + rect.width)) ||
297 (dir == DIR_UP && r.y < rect.y) ||
298 (dir == DIR_DOWN && r.y >= (rect.y + rect.height))) {
299 int d = abs((r.x + r.width / 2) - (rect.x + rect.width / 2)) +
300 abs((r.y + r.height / 2) - (rect.y + rect.height / 2));
310 bool import_monitors(void)
312 PUTS("import monitors");
313 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);
317 monitor_t *m, *mm = NULL;
319 int len = xcb_randr_get_screen_resources_current_outputs_length(sres);
320 xcb_randr_output_t *outputs = xcb_randr_get_screen_resources_current_outputs(sres);
322 xcb_randr_get_output_info_cookie_t cookies[len];
323 for (int i = 0; i < len; i++)
324 cookies[i] = xcb_randr_get_output_info(dpy, outputs[i], XCB_CURRENT_TIME);
326 for (m = mon_head; m != NULL; m = m->next)
329 for (int i = 0; i < len; i++) {
330 xcb_randr_get_output_info_reply_t *info = xcb_randr_get_output_info_reply(dpy, cookies[i], NULL);
332 if (info->crtc != XCB_NONE) {
333 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);
335 xcb_rectangle_t rect = (xcb_rectangle_t) {cir->x, cir->y, cir->width, cir->height};
336 mm = get_monitor_by_id(outputs[i]);
338 mm->rectangle = rect;
340 for (desktop_t *d = mm->desk_head; d != NULL; d = d->next)
341 for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root))
342 translate_client(mm, mm, n->client);
343 arrange(mm, mm->desk);
345 PRINTF("update monitor %s (0x%X)\n", mm->name, mm->id);
347 mm = add_monitor(rect);
348 char *name = (char *)xcb_randr_get_output_info_name(info);
349 size_t name_len = MIN(sizeof(mm->name), (size_t)xcb_randr_get_output_info_name_length(info) + 1);
350 snprintf(mm->name, name_len, "%s", name);
352 PRINTF("add monitor %s (0x%X)\n", mm->name, mm->id);
356 } else if (info->connection != XCB_RANDR_CONNECTION_DISCONNECTED) {
357 m = get_monitor_by_id(outputs[i]);
365 /* initially focus the primary monitor and add the first desktop to it */
366 xcb_randr_get_output_primary_reply_t *gpo = xcb_randr_get_output_primary_reply(dpy, xcb_randr_get_output_primary(dpy, root), NULL);
368 pri_mon = get_monitor_by_id(gpo->output);
369 if (!running && pri_mon != NULL) {
372 add_desktop(pri_mon, make_desktop(NULL));
373 ewmh_update_current_desktop();
378 /* handle overlapping monitors */
381 monitor_t *next = m->next;
383 for (monitor_t *mb = mon_head; mb != NULL; mb = mb->next)
384 if (mb != m && mb->wired && (m->desk == NULL || mb->desk == NULL)
385 && contains(mb->rectangle, m->rectangle)) {
388 merge_monitors(m, mb);
396 /* merge and remove disconnected monitors */
399 monitor_t *next = m->next;
401 merge_monitors(m, mm);
407 /* add one desktop to each new monitor */
408 for (m = mon_head; m != NULL; m = m->next)
409 if (m->desk == NULL && (running || pri_mon == NULL || m != pri_mon))
410 add_desktop(m, make_desktop(NULL));
413 update_motion_recorder();
414 return (num_monitors > 0);