1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
3 place.c for the Openbox window manager
4 Copyright (c) 2006 Mikael Magnusson
5 Copyright (c) 2003-2007 Dana Jansens
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 See the COPYING file for a copy of the GNU General Public License.
27 static void add_choice(guint *choice, guint mychoice)
30 for (i = 0; i < screen_num_monitors; ++i) {
31 if (choice[i] == mychoice)
33 else if (choice[i] == screen_num_monitors) {
40 static Rect *pick_pointer_head(ObClient *c)
45 screen_pointer_pos(&px, &py);
47 for (i = 0; i < screen_num_monitors; ++i) {
48 if (RECT_CONTAINS(*screen_physical_area_monitor(i), px, py)) {
49 return screen_area_monitor(c->desktop, i);
52 g_assert_not_reached();
55 /*! Pick a monitor to place a window on.
56 The returned array value should be freed with g_free. The areas within the
57 array should not be freed. */
58 static Rect **pick_head(ObClient *c)
65 area = g_new(Rect*, screen_num_monitors);
66 choice = g_new(guint, screen_num_monitors);
67 for (i = 0; i < screen_num_monitors; ++i)
68 choice[i] = screen_num_monitors; /* make them all invalid to start */
70 /* try direct parent first */
71 if (c->transient_for && c->transient_for != OB_TRAN_GROUP) {
72 add_choice(choice, client_monitor(c->transient_for));
75 /* more than one window in its group (more than just this window) */
76 if (client_has_group_siblings(c)) {
79 /* try on the client's desktop */
80 for (it = c->group->members; it; it = g_slist_next(it)) {
81 ObClient *itc = it->data;
83 (itc->desktop == c->desktop ||
84 itc->desktop == DESKTOP_ALL || c->desktop == DESKTOP_ALL))
85 add_choice(choice, client_monitor(it->data));
88 /* try on all desktops */
89 for (it = c->group->members; it; it = g_slist_next(it)) {
90 ObClient *itc = it->data;
92 add_choice(choice, client_monitor(it->data));
97 add_choice(choice, client_monitor(focus_client));
99 screen_pointer_pos(&px, &py);
101 for (i = 0; i < screen_num_monitors; i++)
102 if (RECT_CONTAINS(*screen_physical_area_monitor(i), px, py)) {
103 add_choice(choice, i);
107 /* add any leftover choices */
108 for (i = 0; i < screen_num_monitors; ++i)
109 add_choice(choice, i);
111 for (i = 0; i < screen_num_monitors; ++i)
112 area[i] = screen_area_monitor(c->desktop, choice[i]);
117 static gboolean place_random(ObClient *client, gint *x, gint *y)
123 areas = pick_head(client);
124 i = g_random_int_range(0, screen_num_monitors);
128 r = areas[i]->x + areas[i]->width - client->frame->area.width;
129 b = areas[i]->y + areas[i]->height - client->frame->area.height;
131 if (r > l) *x = g_random_int_range(l, r + 1);
132 else *x = areas[i]->x;
133 if (b > t) *y = g_random_int_range(t, b + 1);
134 else *y = areas[i]->y;
141 static GSList* area_add(GSList *list, Rect *a)
143 Rect *r = g_new(Rect, 1);
145 return g_slist_prepend(list, r);
148 static GSList* area_remove(GSList *list, Rect *a)
151 GSList *result = NULL;
153 for (sit = list; sit; sit = g_slist_next(sit)) {
156 if (!RECT_INTERSECTS_RECT(*r, *a)) {
157 result = g_slist_prepend(result, r);
158 r = NULL; /* dont free it */
162 /* Use an intersection of a and r to determine the space
163 around r that we can use.
165 NOTE: the spaces calculated can overlap.
168 RECT_SET_INTERSECTION(isect, *r, *a);
170 if (RECT_LEFT(isect) > RECT_LEFT(*r)) {
171 RECT_SET(extra, r->x, r->y,
172 RECT_LEFT(isect) - r->x, r->height);
173 result = area_add(result, &extra);
176 if (RECT_TOP(isect) > RECT_TOP(*r)) {
177 RECT_SET(extra, r->x, r->y,
178 r->width, RECT_TOP(isect) - r->y + 1);
179 result = area_add(result, &extra);
182 if (RECT_RIGHT(isect) < RECT_RIGHT(*r)) {
183 RECT_SET(extra, RECT_RIGHT(isect) + 1, r->y,
184 RECT_RIGHT(*r) - RECT_RIGHT(isect), r->height);
185 result = area_add(result, &extra);
188 if (RECT_BOTTOM(isect) < RECT_BOTTOM(*r)) {
189 RECT_SET(extra, r->x, RECT_BOTTOM(isect) + 1,
190 r->width, RECT_BOTTOM(*r) - RECT_BOTTOM(isect));
191 result = area_add(result, &extra);
201 static gint area_cmp(gconstpointer p1, gconstpointer p2, gpointer data)
204 Rect *carea = &c->frame->area;
205 const Rect *a1 = p1, *a2 = p2;
206 gboolean diffhead = FALSE;
210 for (i = 0; i < screen_num_monitors; ++i) {
211 a = screen_physical_area_monitor(i);
212 if (RECT_CONTAINS(*a, a1->x, a1->y) &&
213 !RECT_CONTAINS(*a, a2->x, a2->y))
220 /* has to be more than me in the group */
221 if (diffhead && client_has_group_siblings(c)) {
225 /* find how many clients in the group are on each monitor, use the
226 monitor with the most in it */
227 num = g_new0(guint, screen_num_monitors);
228 for (it = c->group->members; it; it = g_slist_next(it))
230 ++num[client_monitor(it->data)];
232 for (i = 1; i < screen_num_monitors; ++i)
233 if (num[i] > num[most])
238 a = screen_physical_area_monitor(most);
239 if (RECT_CONTAINS(*a, a1->x, a1->y))
241 if (RECT_CONTAINS(*a, a2->x, a2->y))
245 return MIN((a1->width - carea->width), (a1->height - carea->height)) -
246 MIN((a2->width - carea->width), (a2->height - carea->height));
256 #define SMART_IGNORE(placer, c) \
257 (placer == c || c->shaded || !client_normal(c) || !c->frame->visible || \
258 (c->desktop != DESKTOP_ALL && \
259 c->desktop != (placer->desktop == DESKTOP_ALL ? \
260 screen_desktop : placer->desktop)))
262 static gboolean place_smart(ObClient *client, gint *x, gint *y,
265 gboolean ret = FALSE;
266 GSList *spaces = NULL, *sit;
271 if (type == SMART_GROUP) {
272 /* has to be more than me in the group */
273 if (!client_has_group_siblings(client))
277 areas = pick_head(client);
279 for (i = 0; i < screen_num_monitors; ++i) {
280 spaces = area_add(spaces, areas[i]);
282 /* stay out from under windows in higher layers */
283 for (it = stacking_list; it; it = g_list_next(it)) {
286 if (WINDOW_IS_CLIENT(it->data)) {
288 if (c->fullscreen || (c->max_vert && c->max_horz))
293 if (c->layer > client->layer) {
294 if (!SMART_IGNORE(client, c))
295 spaces = area_remove(spaces, &c->frame->area);
300 if (type == SMART_FULL || type == SMART_FOCUSED) {
301 gboolean found_foc = FALSE, stop = FALSE;
304 foc = focus_order_find_first(client->desktop == DESKTOP_ALL ?
305 screen_desktop : client->desktop);
307 for (; it && !stop; it = g_list_next(it)) {
310 if (WINDOW_IS_CLIENT(it->data)) {
312 if (c->fullscreen || (c->max_vert && c->max_horz))
317 if (!SMART_IGNORE(client, c)) {
318 if (type == SMART_FOCUSED)
322 spaces = area_remove(spaces, &c->frame->area);
328 } else if (type == SMART_GROUP) {
329 for (sit = client->group->members; sit; sit = g_slist_next(sit)) {
330 ObClient *c = sit->data;
331 if (!SMART_IGNORE(client, c))
332 spaces = area_remove(spaces, &c->frame->area);
335 g_assert_not_reached();
337 spaces = g_slist_sort_with_data(spaces, area_cmp, client);
339 for (sit = spaces; sit; sit = g_slist_next(sit)) {
343 if (r->width >= client->frame->area.width &&
344 r->height >= client->frame->area.height) {
346 if (client->type == OB_CLIENT_TYPE_DIALOG ||
349 *x = r->x + (r->width - client->frame->area.width)/2;
350 *y = r->y + (r->height - client->frame->area.height)/2;
360 g_slist_free(spaces);
369 static gboolean place_under_mouse(ObClient *client, gint *x, gint *y)
375 area = pick_pointer_head(client);
376 screen_pointer_pos(&px, &py);
380 r = area->x + area->width - client->frame->area.width;
381 b = area->y + area->height - client->frame->area.height;
383 *x = px - client->area.width / 2 - client->frame->size.left;
384 *x = MIN(MAX(*x, l), r);
385 *y = py - client->area.height / 2 - client->frame->size.top;
386 *y = MIN(MAX(*y, t), b);
391 static gboolean place_per_app_setting(ObClient *client, gint *x, gint *y,
392 ObAppSettings *settings)
396 if (!settings || (settings && !settings->pos_given))
399 /* Find which head the pointer is on */
400 if (settings->monitor == 0)
401 screen = pick_pointer_head(client);
402 else if (settings->monitor > 0 &&
403 (guint)settings->monitor <= screen_num_monitors)
404 screen = screen_area_monitor(client->desktop,
405 (guint)settings->monitor - 1);
408 all = pick_head(client);
410 g_free(all); /* the areas themselves don't need to be freed */
413 if (settings->center_x)
414 *x = screen->x + screen->width / 2 - client->area.width / 2;
416 *x = screen->x + settings->position.x;
418 if (settings->center_y)
419 *y = screen->y + screen->height / 2 - client->area.height / 2;
421 *y = screen->y + settings->position.y;
426 static gboolean place_transient(ObClient *client, gint *x, gint *y)
428 if (client->transient_for && client->type == OB_CLIENT_TYPE_DIALOG) {
429 if (client->transient_for != OB_TRAN_GROUP) {
430 ObClient *c = client;
431 ObClient *p = client->transient_for;
433 if (client_normal(p)) {
434 *x = (p->frame->area.width - c->frame->area.width) / 2 +
436 *y = (p->frame->area.height - c->frame->area.height) / 2 +
442 gboolean first = TRUE;
444 for (it = client->group->members; it; it = g_slist_next(it)) {
445 ObClient *m = it->data;
446 if (!(m == client || m->transient_for) && client_normal(m)) {
448 l = RECT_LEFT(m->frame->area);
449 t = RECT_TOP(m->frame->area);
450 r = RECT_RIGHT(m->frame->area);
451 b = RECT_BOTTOM(m->frame->area);
454 l = MIN(l, RECT_LEFT(m->frame->area));
455 t = MIN(t, RECT_TOP(m->frame->area));
456 r = MAX(r, RECT_RIGHT(m->frame->area));
457 b = MAX(b, RECT_BOTTOM(m->frame->area));
462 *x = ((r + 1 - l) - client->frame->area.width) / 2 + l;
463 *y = ((b + 1 - t) - client->frame->area.height) / 2 + t;
469 if (client->transient) {
472 areas = pick_head(client);
474 *x = (areas[0]->width - client->frame->area.width) / 2 + areas[0]->x;
475 *y = (areas[0]->height - client->frame->area.height) / 2 + areas[0]->y;
484 /* Return TRUE if we want client.c to enforce on-screen-keeping */
485 gboolean place_client(ObClient *client, gint *x, gint *y,
486 ObAppSettings *settings)
488 gboolean ret = FALSE;
489 if (client->positioned)
491 if (place_transient(client, x, y))
494 place_per_app_setting(client, x, y, settings) ||
495 ((config_place_policy == OB_PLACE_POLICY_MOUSE) ?
496 place_under_mouse(client, x, y) :
497 place_smart(client, x, y, SMART_FULL) ||
498 place_smart(client, x, y, SMART_GROUP) ||
499 place_smart(client, x, y, SMART_FOCUSED) ||
500 place_random(client, x, y))))
501 g_assert_not_reached(); /* the last one better succeed */
502 /* get where the client should be */
503 frame_frame_gravity(client->frame, x, y,
504 client->area.width, client->area.height);