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.
28 static void add_choice(guint *choice, guint mychoice)
31 for (i = 0; i < screen_num_monitors; ++i) {
32 if (choice[i] == mychoice)
34 else if (choice[i] == screen_num_monitors) {
41 static Rect *pick_pointer_head(ObClient *c)
46 screen_pointer_pos(&px, &py);
48 for (i = 0; i < screen_num_monitors; ++i) {
49 if (RECT_CONTAINS(*screen_physical_area_monitor(i), px, py)) {
50 return screen_area_monitor(c->desktop, i);
53 g_assert_not_reached();
56 /*! Pick a monitor to place a window on.
57 The returned array value should be freed with g_free. The areas within the
58 array should not be freed. */
59 static Rect **pick_head(ObClient *c)
67 area = g_new(Rect*, screen_num_monitors);
68 choice = g_new(guint, screen_num_monitors);
69 for (i = 0; i < screen_num_monitors; ++i)
70 choice[i] = screen_num_monitors; /* make them all invalid to start */
72 /* try direct parent first */
73 if ((p = client_direct_parent(c))) {
74 add_choice(choice, client_monitor(p));
75 ob_debug("placement adding choice %d for parent\n",
79 /* more than one window in its group (more than just this window) */
80 if (client_has_group_siblings(c)) {
83 /* try on the client's desktop */
84 for (it = c->group->members; it; it = g_slist_next(it)) {
85 ObClient *itc = it->data;
87 (itc->desktop == c->desktop ||
88 itc->desktop == DESKTOP_ALL || c->desktop == DESKTOP_ALL))
90 add_choice(choice, client_monitor(it->data));
91 ob_debug("placement adding choice %d for group sibling\n",
92 client_monitor(it->data));
96 /* try on all desktops */
97 for (it = c->group->members; it; it = g_slist_next(it)) {
98 ObClient *itc = it->data;
100 add_choice(choice, client_monitor(it->data));
101 ob_debug("placement adding choice %d for group sibling on "
102 "another desktop\n", client_monitor(it->data));
108 add_choice(choice, client_monitor(focus_client));
109 ob_debug("placement adding choice %d for focused window\n",
110 client_monitor(focus_client));
113 screen_pointer_pos(&px, &py);
115 for (i = 0; i < screen_num_monitors; i++)
116 if (RECT_CONTAINS(*screen_physical_area_monitor(i), px, py)) {
117 add_choice(choice, i);
118 ob_debug("placement adding choice %d for mouse pointer\n", i);
122 /* add any leftover choices */
123 for (i = 0; i < screen_num_monitors; ++i)
124 add_choice(choice, i);
126 for (i = 0; i < screen_num_monitors; ++i)
127 area[i] = screen_area_monitor(c->desktop, choice[i]);
132 static gboolean place_random(ObClient *client, gint *x, gint *y)
138 areas = pick_head(client);
139 i = g_random_int_range(0, screen_num_monitors);
143 r = areas[i]->x + areas[i]->width - client->frame->area.width;
144 b = areas[i]->y + areas[i]->height - client->frame->area.height;
146 if (r > l) *x = g_random_int_range(l, r + 1);
147 else *x = areas[i]->x;
148 if (b > t) *y = g_random_int_range(t, b + 1);
149 else *y = areas[i]->y;
156 static GSList* area_add(GSList *list, Rect *a)
158 Rect *r = g_new(Rect, 1);
160 return g_slist_prepend(list, r);
163 static GSList* area_remove(GSList *list, Rect *a)
166 GSList *result = NULL;
168 for (sit = list; sit; sit = g_slist_next(sit)) {
171 if (!RECT_INTERSECTS_RECT(*r, *a)) {
172 result = g_slist_prepend(result, r);
173 r = NULL; /* dont free it */
177 /* Use an intersection of a and r to determine the space
178 around r that we can use.
180 NOTE: the spaces calculated can overlap.
183 RECT_SET_INTERSECTION(isect, *r, *a);
185 if (RECT_LEFT(isect) > RECT_LEFT(*r)) {
186 RECT_SET(extra, r->x, r->y,
187 RECT_LEFT(isect) - r->x, r->height);
188 result = area_add(result, &extra);
191 if (RECT_TOP(isect) > RECT_TOP(*r)) {
192 RECT_SET(extra, r->x, r->y,
193 r->width, RECT_TOP(isect) - r->y + 1);
194 result = area_add(result, &extra);
197 if (RECT_RIGHT(isect) < RECT_RIGHT(*r)) {
198 RECT_SET(extra, RECT_RIGHT(isect) + 1, r->y,
199 RECT_RIGHT(*r) - RECT_RIGHT(isect), r->height);
200 result = area_add(result, &extra);
203 if (RECT_BOTTOM(isect) < RECT_BOTTOM(*r)) {
204 RECT_SET(extra, r->x, RECT_BOTTOM(isect) + 1,
205 r->width, RECT_BOTTOM(*r) - RECT_BOTTOM(isect));
206 result = area_add(result, &extra);
217 IGNORE_FULLSCREEN = 1 << 0,
218 IGNORE_MAXIMIZED = 1 << 1,
219 IGNORE_MENUTOOL = 1 << 2,
220 /*IGNORE_SHADED = 1 << 3,*/
221 IGNORE_NONGROUP = 1 << 3,
222 IGNORE_BELOW = 1 << 4,
223 IGNORE_NONFOCUS = 1 << 5,
227 static gboolean place_nooverlap(ObClient *c, gint *x, gint *y)
233 GSList *spaces = NULL, *sit, *maxit;
235 areas = pick_head(c);
240 /* try ignoring different things to find empty space */
241 for (ignore = 0; ignore < IGNORE_END && !ret; ignore = (ignore << 1) + 1) {
244 /* try all monitors in order of preference */
245 for (i = 0; i < screen_num_monitors && !ret; ++i) {
248 /* add the whole monitor */
249 spaces = area_add(spaces, areas[i]);
251 /* go thru all the windows */
252 for (it = client_list; it; it = g_list_next(it)) {
253 ObClient *test = it->data;
255 /* should we ignore this client? */
256 if (screen_showing_desktop) continue;
257 if (c == test) continue;
258 if (test->iconic) continue;
259 if (c->desktop != DESKTOP_ALL) {
260 if (test->desktop != c->desktop &&
261 test->desktop != DESKTOP_ALL) continue;
263 if (test->desktop != screen_desktop &&
264 test->desktop != DESKTOP_ALL) continue;
266 if (test->type == OB_CLIENT_TYPE_SPLASH ||
267 test->type == OB_CLIENT_TYPE_DESKTOP) continue;
270 if ((ignore & IGNORE_FULLSCREEN) &&
271 test->fullscreen) continue;
272 if ((ignore & IGNORE_MAXIMIZED) &&
273 test->max_horz && test->max_vert) continue;
274 if ((ignore & IGNORE_MENUTOOL) &&
275 (test->type == OB_CLIENT_TYPE_MENU ||
276 test->type == OB_CLIENT_TYPE_TOOLBAR) &&
277 client_has_parent(c)) continue;
279 if ((ignore & IGNORE_SHADED) &&
280 test->shaded) continue;
282 if ((ignore & IGNORE_NONGROUP) &&
283 client_has_group_siblings(c) &&
284 test->group != c->group) continue;
285 if ((ignore & IGNORE_BELOW) &&
286 test->layer < c->layer) continue;
287 if ((ignore & IGNORE_NONFOCUS) &&
288 focus_client != test) continue;
290 /* don't ignore this window, so remove it from the available
292 spaces = area_remove(spaces, &test->frame->area);
295 for (sit = spaces; sit; sit = g_slist_next(sit)) {
298 if (r->width >= c->frame->area.width &&
299 r->height >= c->frame->area.height &&
308 Rect *r = maxit->data;
310 /* center it in the area */
311 *x = r->x + (r->width - c->frame->area.width) / 2;
312 *y = r->y + (r->height - c->frame->area.height) / 2;
317 g_free(spaces->data);
318 spaces = g_slist_delete_link(spaces, spaces);
327 static gboolean place_under_mouse(ObClient *client, gint *x, gint *y)
333 if (!screen_pointer_pos(&px, &py))
335 area = pick_pointer_head(client);
339 r = area->x + area->width - client->frame->area.width;
340 b = area->y + area->height - client->frame->area.height;
342 *x = px - client->area.width / 2 - client->frame->size.left;
343 *x = MIN(MAX(*x, l), r);
344 *y = py - client->area.height / 2 - client->frame->size.top;
345 *y = MIN(MAX(*y, t), b);
350 static gboolean place_per_app_setting(ObClient *client, gint *x, gint *y,
351 ObAppSettings *settings)
355 if (!settings || (settings && !settings->pos_given))
358 /* Find which head the pointer is on */
359 if (settings->monitor == 0)
360 screen = pick_pointer_head(client);
361 else if (settings->monitor > 0 &&
362 (guint)settings->monitor <= screen_num_monitors)
363 screen = screen_area_monitor(client->desktop,
364 (guint)settings->monitor - 1);
367 all = pick_head(client);
369 g_free(all); /* the areas themselves don't need to be freed */
372 if (settings->center_x)
373 *x = screen->x + screen->width / 2 - client->area.width / 2;
374 else if (settings->opposite_x)
375 *x = screen->x + screen->width - client->frame->area.width -
376 settings->position.x;
378 *x = screen->x + settings->position.x;
380 if (settings->center_y)
381 *y = screen->y + screen->height / 2 - client->area.height / 2;
382 else if (settings->opposite_y)
383 *y = screen->y + screen->height - client->frame->area.height -
384 settings->position.y;
386 *y = screen->y + settings->position.y;
391 static gboolean place_transient_splash(ObClient *client, gint *x, gint *y)
393 if (client->type == OB_CLIENT_TYPE_DIALOG) {
395 gboolean first = TRUE;
397 for (it = client->parents; it; it = g_slist_next(it)) {
398 ObClient *m = it->data;
401 l = RECT_LEFT(m->frame->area);
402 t = RECT_TOP(m->frame->area);
403 r = RECT_RIGHT(m->frame->area);
404 b = RECT_BOTTOM(m->frame->area);
407 l = MIN(l, RECT_LEFT(m->frame->area));
408 t = MIN(t, RECT_TOP(m->frame->area));
409 r = MAX(r, RECT_RIGHT(m->frame->area));
410 b = MAX(b, RECT_BOTTOM(m->frame->area));
414 *x = ((r + 1 - l) - client->frame->area.width) / 2 + l;
415 *y = ((b + 1 - t) - client->frame->area.height) / 2 + t;
421 if (client->type == OB_CLIENT_TYPE_DIALOG ||
422 client->type == OB_CLIENT_TYPE_SPLASH)
426 areas = pick_head(client);
428 *x = (areas[0]->width - client->frame->area.width) / 2 + areas[0]->x;
429 *y = (areas[0]->height - client->frame->area.height) / 2 + areas[0]->y;
438 /* Return TRUE if we want client.c to enforce on-screen-keeping */
439 gboolean place_client(ObClient *client, gint *x, gint *y,
440 ObAppSettings *settings)
444 if (client->positioned)
447 /* try a number of methods */
448 ret = place_transient_splash(client, x, y) ||
449 place_per_app_setting(client, x, y, settings) ||
450 (config_place_policy == OB_PLACE_POLICY_MOUSE &&
451 place_under_mouse(client, x, y)) ||
452 place_nooverlap(client, x, y) ||
453 place_under_mouse(client, x, y) ||
454 place_random(client, x, y);
457 /* get where the client should be */
458 frame_frame_gravity(client->frame, x, y,
459 client->area.width, client->area.height);