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.
31 static void add_choice(guint *choice, guint mychoice)
34 for (i = 0; i < screen_num_monitors; ++i) {
35 if (choice[i] == mychoice)
37 else if (choice[i] == screen_num_monitors) {
44 static Rect *pick_pointer_head(ObClient *c)
49 if (screen_pointer_pos(&px, &py)) {
50 for (i = 0; i < screen_num_monitors; ++i) {
51 Rect *monitor = screen_physical_area_monitor(i);
52 gboolean contain = RECT_CONTAINS(*monitor, px, py);
55 return screen_area(c->desktop, i, NULL);
57 g_assert_not_reached();
62 /*! Pick a monitor to place a window on. */
63 static Rect **pick_head(ObClient *c)
71 area = g_new(Rect*, screen_num_monitors);
72 choice = g_new(guint, screen_num_monitors);
73 for (i = 0; i < screen_num_monitors; ++i)
74 choice[i] = screen_num_monitors; /* make them all invalid to start */
76 /* try direct parent first */
77 if ((p = client_direct_parent(c))) {
78 add_choice(choice, client_monitor(p));
79 ob_debug("placement adding choice %d for parent\n",
83 /* more than one window in its group (more than just this window) */
84 if (client_has_group_siblings(c)) {
87 /* try on the client's desktop */
88 for (it = c->group->members; it; it = g_slist_next(it)) {
89 ObClient *itc = it->data;
91 (itc->desktop == c->desktop ||
92 itc->desktop == DESKTOP_ALL || c->desktop == DESKTOP_ALL))
94 add_choice(choice, client_monitor(it->data));
95 ob_debug("placement adding choice %d for group sibling\n",
96 client_monitor(it->data));
100 /* try on all desktops */
101 for (it = c->group->members; it; it = g_slist_next(it)) {
102 ObClient *itc = it->data;
104 add_choice(choice, client_monitor(it->data));
105 ob_debug("placement adding choice %d for group sibling on "
106 "another desktop\n", client_monitor(it->data));
112 add_choice(choice, client_monitor(focus_client));
113 ob_debug("placement adding choice %d for focused window\n",
114 client_monitor(focus_client));
117 screen_pointer_pos(&px, &py);
119 for (i = 0; i < screen_num_monitors; i++) {
120 Rect *monitor = screen_physical_area_monitor(i);
121 gboolean contain = RECT_CONTAINS(*monitor, px, py);
124 add_choice(choice, i);
125 ob_debug("placement adding choice %d for mouse pointer\n", i);
130 /* add any leftover choices */
131 for (i = 0; i < screen_num_monitors; ++i)
132 add_choice(choice, i);
134 for (i = 0; i < screen_num_monitors; ++i)
135 area[i] = screen_area(c->desktop, choice[i], NULL);
142 static gboolean place_random(ObClient *client, gint *x, gint *y)
148 areas = pick_head(client);
149 i = g_random_int_range(0, screen_num_monitors);
153 r = areas[i]->x + areas[i]->width - client->frame->area.width;
154 b = areas[i]->y + areas[i]->height - client->frame->area.height;
156 if (r > l) *x = g_random_int_range(l, r + 1);
157 else *x = areas[i]->x;
158 if (b > t) *y = g_random_int_range(t, b + 1);
159 else *y = areas[i]->y;
161 for (i = 0; i < screen_num_monitors; ++i)
168 static GSList* area_add(GSList *list, Rect *a)
170 Rect *r = g_new(Rect, 1);
172 return g_slist_prepend(list, r);
175 static GSList* area_remove(GSList *list, Rect *a)
178 GSList *result = NULL;
180 for (sit = list; sit; sit = g_slist_next(sit)) {
183 if (!RECT_INTERSECTS_RECT(*r, *a)) {
184 result = g_slist_prepend(result, r);
185 /* dont free r, it's moved to the result list */
189 /* Use an intersection of a and r to determine the space
190 around r that we can use.
192 NOTE: the spaces calculated can overlap.
195 RECT_SET_INTERSECTION(isect, *r, *a);
197 if (RECT_LEFT(isect) > RECT_LEFT(*r)) {
198 RECT_SET(extra, r->x, r->y,
199 RECT_LEFT(isect) - r->x, r->height);
200 result = area_add(result, &extra);
203 if (RECT_TOP(isect) > RECT_TOP(*r)) {
204 RECT_SET(extra, r->x, r->y,
205 r->width, RECT_TOP(isect) - r->y + 1);
206 result = area_add(result, &extra);
209 if (RECT_RIGHT(isect) < RECT_RIGHT(*r)) {
210 RECT_SET(extra, RECT_RIGHT(isect) + 1, r->y,
211 RECT_RIGHT(*r) - RECT_RIGHT(isect), r->height);
212 result = area_add(result, &extra);
215 if (RECT_BOTTOM(isect) < RECT_BOTTOM(*r)) {
216 RECT_SET(extra, r->x, RECT_BOTTOM(isect) + 1,
217 r->width, RECT_BOTTOM(*r) - RECT_BOTTOM(isect));
218 result = area_add(result, &extra);
221 /* 'r' is not being added to the result list, so free it */
230 IGNORE_FULLSCREEN = 1,
231 IGNORE_MAXIMIZED = 2,
233 /*IGNORE_SHADED = 3,*/
236 /*IGNORE_NONFOCUS = 1 << 5,*/
241 static gboolean place_nooverlap(ObClient *c, gint *x, gint *y)
247 GSList *spaces = NULL, *sit, *maxit;
250 areas = pick_head(c);
255 /* try ignoring different things to find empty space */
256 for (ignore = 0; ignore < IGNORE_END && !ret; ignore++) {
259 /* try all monitors in order of preference */
260 for (i = 0; i < screen_num_monitors && !ret; ++i) {
263 /* add the whole monitor */
264 spaces = area_add(spaces, areas[i]);
266 /* go thru all the windows */
267 for (it = client_list; it; it = g_list_next(it)) {
268 ObClient *test = it->data;
270 /* should we ignore this client? */
271 if (screen_showing_desktop) continue;
272 if (c == test) continue;
273 if (test->iconic) continue;
274 if (c->desktop != DESKTOP_ALL) {
275 if (test->desktop != c->desktop &&
276 test->desktop != DESKTOP_ALL) continue;
278 if (test->desktop != screen_desktop &&
279 test->desktop != DESKTOP_ALL) continue;
281 if (test->type == OB_CLIENT_TYPE_SPLASH ||
282 test->type == OB_CLIENT_TYPE_DESKTOP) continue;
285 if ((ignore >= IGNORE_FULLSCREEN) &&
286 test->fullscreen) continue;
287 if ((ignore >= IGNORE_MAXIMIZED) &&
288 test->max_horz && test->max_vert) continue;
289 if ((ignore >= IGNORE_MENUTOOL) &&
290 (test->type == OB_CLIENT_TYPE_MENU ||
291 test->type == OB_CLIENT_TYPE_TOOLBAR) &&
292 client_has_parent(c)) continue;
294 if ((ignore >= IGNORE_SHADED) &&
295 test->shaded) continue;
297 if ((ignore >= IGNORE_NONGROUP) &&
298 client_has_group_siblings(c) &&
299 test->group != c->group) continue;
300 if ((ignore >= IGNORE_BELOW) &&
301 test->layer < c->layer) continue;
303 if ((ignore >= IGNORE_NONFOCUS) &&
304 focus_client != test) continue;
306 /* don't ignore this window, so remove it from the available
308 spaces = area_remove(spaces, &test->frame->area);
311 if (ignore < IGNORE_DOCK) {
314 spaces = area_remove(spaces, &a);
317 for (sit = spaces; sit; sit = g_slist_next(sit)) {
320 if (r->width >= c->frame->area.width &&
321 r->height >= c->frame->area.height &&
322 r->width * r->height > maxsize)
324 maxsize = r->width * r->height;
330 Rect *r = maxit->data;
332 /* center it in the area */
335 if (config_place_center) {
336 *x += (r->width - c->frame->area.width) / 2;
337 *y += (r->height - c->frame->area.height) / 2;
343 g_free(spaces->data);
344 spaces = g_slist_delete_link(spaces, spaces);
349 for (i = 0; i < screen_num_monitors; ++i)
355 static gboolean place_under_mouse(ObClient *client, gint *x, gint *y)
361 if (!screen_pointer_pos(&px, &py))
363 area = pick_pointer_head(client);
367 r = area->x + area->width - client->frame->area.width;
368 b = area->y + area->height - client->frame->area.height;
370 *x = px - client->area.width / 2 - client->frame->size.left;
371 *x = MIN(MAX(*x, l), r);
372 *y = py - client->area.height / 2 - client->frame->size.top;
373 *y = MIN(MAX(*y, t), b);
378 static gboolean place_per_app_setting(ObClient *client, gint *x, gint *y,
379 ObAppSettings *settings)
383 if (!settings || (settings && !settings->pos_given))
386 /* Find which head the pointer is on */
387 if (settings->monitor == 0)
388 /* this can return NULL */
389 screen = pick_pointer_head(client);
390 else if (settings->monitor > 0 &&
391 (guint)settings->monitor <= screen_num_monitors)
392 screen = screen_area(client->desktop, (guint)settings->monitor - 1,
395 /* if we have't found a screen yet.. */
400 areas = pick_head(client);
403 /* don't free the first one, it's being set as "screen" */
404 for (i = 1; i < screen_num_monitors; ++i)
409 if (settings->center_x)
410 *x = screen->x + screen->width / 2 - client->area.width / 2;
411 else if (settings->opposite_x)
412 *x = screen->x + screen->width - client->frame->area.width -
413 settings->position.x;
415 *x = screen->x + settings->position.x;
417 if (settings->center_y)
418 *y = screen->y + screen->height / 2 - client->area.height / 2;
419 else if (settings->opposite_y)
420 *y = screen->y + screen->height - client->frame->area.height -
421 settings->position.y;
423 *y = screen->y + settings->position.y;
429 static gboolean place_transient_splash(ObClient *client, gint *x, gint *y)
431 if (client->type == OB_CLIENT_TYPE_DIALOG) {
433 gboolean first = TRUE;
435 for (it = client->parents; it; it = g_slist_next(it)) {
436 ObClient *m = it->data;
439 l = RECT_LEFT(m->frame->area);
440 t = RECT_TOP(m->frame->area);
441 r = RECT_RIGHT(m->frame->area);
442 b = RECT_BOTTOM(m->frame->area);
445 l = MIN(l, RECT_LEFT(m->frame->area));
446 t = MIN(t, RECT_TOP(m->frame->area));
447 r = MAX(r, RECT_RIGHT(m->frame->area));
448 b = MAX(b, RECT_BOTTOM(m->frame->area));
452 *x = ((r + 1 - l) - client->frame->area.width) / 2 + l;
453 *y = ((b + 1 - t) - client->frame->area.height) / 2 + t;
459 if (client->type == OB_CLIENT_TYPE_DIALOG ||
460 client->type == OB_CLIENT_TYPE_SPLASH)
465 areas = pick_head(client);
467 *x = (areas[0]->width - client->frame->area.width) / 2 + areas[0]->x;
468 *y = (areas[0]->height - client->frame->area.height) / 2 + areas[0]->y;
470 for (i = 0; i < screen_num_monitors; ++i)
479 /* Return TRUE if we want client.c to enforce on-screen-keeping */
480 gboolean place_client(ObClient *client, gint *x, gint *y,
481 ObAppSettings *settings)
484 gboolean userplaced = FALSE;
486 /* per-app settings override program specified position
487 * but not user specified */
488 if ((client->positioned & USPosition) ||
489 ((client->positioned & PPosition) &&
490 !(settings && settings->pos_given)))
493 /* try a number of methods */
494 ret = place_transient_splash(client, x, y) ||
495 (userplaced = place_per_app_setting(client, x, y, settings)) ||
496 (config_place_policy == OB_PLACE_POLICY_MOUSE &&
497 place_under_mouse(client, x, y)) ||
498 place_nooverlap(client, x, y) ||
499 place_random(client, x, y);
502 /* get where the client should be */
503 frame_frame_gravity(client->frame, x, y);