1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
3 place.c for the Openbox window manager
4 Copyright (c) 2003 Ben Jansens
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 See the COPYING file for a copy of the GNU General Public License.
26 static Rect* pick_head(ObClient *c)
28 /* try direct parent first */
29 if (c->transient_for && c->transient_for != OB_TRAN_GROUP) {
30 return screen_area_monitor(c->desktop,
31 client_monitor(c->transient_for));
34 /* more than one guy in his group (more than just him) */
35 if (client_has_group_siblings(c)) {
38 /* try on the client's desktop */
39 for (it = c->group->members; it; it = g_slist_next(it)) {
40 ObClient *itc = it->data;
42 (itc->desktop == c->desktop ||
43 itc->desktop == DESKTOP_ALL || c->desktop == DESKTOP_ALL))
44 return screen_area_monitor(c->desktop,
45 client_monitor(it->data));
48 /* try on all desktops */
49 for (it = c->group->members; it; it = g_slist_next(it)) {
50 ObClient *itc = it->data;
52 return screen_area_monitor(c->desktop,
53 client_monitor(it->data));
60 static gboolean place_random(ObClient *client, gint *x, gint *y)
65 area = pick_head(client);
67 area = screen_area_monitor(client->desktop,
68 g_random_int_range(0, screen_num_monitors));
72 r = area->x + area->width - client->frame->area.width;
73 b = area->y + area->height - client->frame->area.height;
75 if (r > l) *x = g_random_int_range(l, r + 1);
77 if (b > t) *y = g_random_int_range(t, b + 1);
83 static GSList* area_add(GSList *list, Rect *a)
85 Rect *r = g_new(Rect, 1);
87 return g_slist_prepend(list, r);
90 static GSList* area_remove(GSList *list, Rect *a)
93 GSList *result = NULL;
95 for (sit = list; sit; sit = g_slist_next(sit)) {
98 if (!RECT_INTERSECTS_RECT(*r, *a)) {
99 result = g_slist_prepend(result, r);
100 r = NULL; /* dont free it */
104 /* Use an intersection of a and r to determine the space
105 around r that we can use.
107 NOTE: the spaces calculated can overlap.
110 RECT_SET_INTERSECTION(isect, *r, *a);
112 if (RECT_LEFT(isect) > RECT_LEFT(*r)) {
113 RECT_SET(extra, r->x, r->y,
114 RECT_LEFT(isect) - r->x, r->height);
115 result = area_add(result, &extra);
118 if (RECT_TOP(isect) > RECT_TOP(*r)) {
119 RECT_SET(extra, r->x, r->y,
120 r->width, RECT_TOP(isect) - r->y + 1);
121 result = area_add(result, &extra);
124 if (RECT_RIGHT(isect) < RECT_RIGHT(*r)) {
125 RECT_SET(extra, RECT_RIGHT(isect) + 1, r->y,
126 RECT_RIGHT(*r) - RECT_RIGHT(isect), r->height);
127 result = area_add(result, &extra);
130 if (RECT_BOTTOM(isect) < RECT_BOTTOM(*r)) {
131 RECT_SET(extra, r->x, RECT_BOTTOM(isect) + 1,
132 r->width, RECT_BOTTOM(*r) - RECT_BOTTOM(isect));
133 result = area_add(result, &extra);
143 static gint area_cmp(gconstpointer p1, gconstpointer p2, gpointer data)
146 Rect *carea = &c->frame->area;
147 const Rect *a1 = p1, *a2 = p2;
148 gboolean diffhead = FALSE;
152 for (i = 0; i < screen_num_monitors; ++i) {
153 a = screen_physical_area_monitor(i);
154 if (RECT_CONTAINS(*a, a1->x, a1->y) &&
155 !RECT_CONTAINS(*a, a2->x, a2->y))
162 /* has to be more than me in the group */
163 if (diffhead && client_has_group_siblings(c)) {
167 /* find how many clients in the group are on each monitor, use the
168 monitor with the most in it */
169 num = g_new0(guint, screen_num_monitors);
170 for (it = c->group->members; it; it = g_slist_next(it))
172 ++num[client_monitor(it->data)];
174 for (i = 1; i < screen_num_monitors; ++i)
175 if (num[i] > num[most])
178 a = screen_physical_area_monitor(most);
179 if (RECT_CONTAINS(*a, a1->x, a1->y))
181 if (RECT_CONTAINS(*a, a2->x, a2->y))
185 return MIN((a1->width - carea->width), (a1->height - carea->height)) -
186 MIN((a2->width - carea->width), (a2->height - carea->height));
196 #define SMART_IGNORE(placer, c) \
197 (placer == c || !c->frame->visible || c->shaded || !client_normal(c) || \
198 (c->desktop != DESKTOP_ALL && \
199 c->desktop != (placer->desktop == DESKTOP_ALL ? \
200 screen_desktop : placer->desktop)))
202 static gboolean place_smart(ObClient *client, gint *x, gint *y,
206 gboolean ret = FALSE;
207 GSList *spaces = NULL, *sit;
210 for (i = 0; i < screen_num_monitors; ++i)
211 spaces = area_add(spaces, screen_area_monitor(client->desktop, i));
213 if (type == SMART_FULL || type == SMART_FOCUSED) {
214 gboolean found_foc = FALSE, stop = FALSE;
218 list = focus_order[client->desktop == DESKTOP_ALL ?
219 screen_desktop : client->desktop];
220 foc = list ? list->data : NULL;
222 for (it = stacking_list; it && !stop; it = g_list_next(it)) {
225 if (WINDOW_IS_CLIENT(it->data))
230 if (!SMART_IGNORE(client, c)) {
231 if (type == SMART_FOCUSED) {
232 if (c->layer <= client->layer && found_foc)
236 spaces = area_remove(spaces, &c->frame->area);
242 } else if (type == SMART_GROUP) {
243 /* has to be more than me in the group */
244 if (!client_has_group_siblings(client))
247 for (sit = client->group->members; sit; sit = g_slist_next(sit)) {
248 ObClient *c = sit->data;
249 if (!SMART_IGNORE(client, c))
250 spaces = area_remove(spaces, &c->frame->area);
253 /* stay out from under windows in higher layers */
254 for (it = stacking_list; it; it = g_list_next(it)) {
257 if (WINDOW_IS_CLIENT(it->data))
262 if (c->layer > client->layer) {
263 if (!SMART_IGNORE(client, c))
264 spaces = area_remove(spaces, &c->frame->area);
269 g_assert_not_reached();
271 spaces = g_slist_sort_with_data(spaces, area_cmp, client);
273 for (sit = spaces; sit; sit = g_slist_next(sit)) {
277 if (r->width >= client->frame->area.width &&
278 r->height >= client->frame->area.height) {
280 if (type != SMART_FULL) {
281 *x = r->x + (r->width - client->frame->area.width) / 2;
282 *y = r->y + (r->height - client->frame->area.height) / 2;
292 g_slist_free(spaces);
297 static gboolean place_under_mouse(ObClient *client, gint *x, gint *y)
304 screen_pointer_pos(&px, &py);
306 for (i = 0; i < screen_num_monitors; ++i) {
307 area = screen_area_monitor(client->desktop, i);
308 if (RECT_CONTAINS(*area, px, py))
311 if (i == screen_num_monitors)
312 area = screen_area_monitor(client->desktop, 0);
316 r = area->x + area->width - client->frame->area.width;
317 b = area->y + area->height - client->frame->area.height;
319 *x = px - client->area.width / 2 - client->frame->size.left;
320 *x = MIN(MAX(*x, l), r);
321 *y = py - client->area.height / 2 - client->frame->size.top;
322 *y = MIN(MAX(*y, t), b);
327 static gboolean place_transient(ObClient *client, gint *x, gint *y)
329 if (client->transient_for) {
330 if (client->transient_for != OB_TRAN_GROUP) {
331 ObClient *c = client;
332 ObClient *p = client->transient_for;
333 *x = (p->frame->area.width - c->frame->area.width) / 2 +
335 *y = (p->frame->area.height - c->frame->area.height) / 2 +
340 gboolean first = TRUE;
342 for (it = client->group->members; it; it = it->next) {
343 ObClient *m = it->data;
344 if (!(m == client || m->transient_for)) {
346 l = RECT_LEFT(m->frame->area);
347 t = RECT_TOP(m->frame->area);
348 r = RECT_RIGHT(m->frame->area);
349 b = RECT_BOTTOM(m->frame->area);
352 l = MIN(l, RECT_LEFT(m->frame->area));
353 t = MIN(t, RECT_TOP(m->frame->area));
354 r = MAX(r, RECT_RIGHT(m->frame->area));
355 b = MAX(b, RECT_BOTTOM(m->frame->area));
360 *x = ((r + 1 - l) - client->frame->area.width) / 2 + l;
361 *y = ((b + 1 - t) - client->frame->area.height) / 2 + t;
369 static gboolean place_dialog(ObClient *client, gint *x, gint *y)
371 /* center parentless dialogs on the screen */
372 if (client->type == OB_CLIENT_TYPE_DIALOG) {
375 area = pick_head(client);
377 area = screen_area_monitor(client->desktop, 0);
379 *x = (area->width - client->frame->area.width) / 2 + area->x;
380 *y = (area->height - client->frame->area.height) / 2 + area->y;
386 void place_client(ObClient *client, gint *x, gint *y)
388 if (client->positioned)
390 if (place_transient(client, x, y) ||
391 place_dialog(client, x, y) ||
392 ((config_place_policy == OB_PLACE_POLICY_MOUSE) ?
393 place_under_mouse(client, x, y) :
394 place_smart(client, x, y, SMART_FULL) ||
395 place_smart(client, x, y, SMART_GROUP) ||
396 place_smart(client, x, y, SMART_FOCUSED) ||
397 place_random(client, x, y)))
399 /* get where the client should be */
400 frame_frame_gravity(client->frame, x, y);
402 g_assert_not_reached(); /* the last one better succeed */