+ return TRUE;
+}
+
+static GSList* area_add(GSList *list, Rect *a)
+{
+ Rect *r = g_new(Rect, 1);
+ *r = *a;
+ return g_slist_prepend(list, r);
+}
+
+static GSList* area_remove(GSList *list, Rect *a)
+{
+ GSList *sit;
+ GSList *result = NULL;
+
+ for (sit = list; sit; sit = g_slist_next(sit)) {
+ Rect *r = sit->data;
+
+ if (!RECT_INTERSECTS_RECT(*r, *a)) {
+ result = g_slist_prepend(result, r);
+ r = NULL; /* dont free it */
+ } else {
+ Rect isect, extra;
+
+ /* Use an intersection of a and r to determine the space
+ around r that we can use.
+
+ NOTE: the spaces calculated can overlap.
+ */
+
+ RECT_SET_INTERSECTION(isect, *r, *a);
+
+ if (RECT_LEFT(isect) > RECT_LEFT(*r)) {
+ RECT_SET(extra, r->x, r->y,
+ RECT_LEFT(isect) - r->x, r->height);
+ result = area_add(result, &extra);
+ }
+
+ if (RECT_TOP(isect) > RECT_TOP(*r)) {
+ RECT_SET(extra, r->x, r->y,
+ r->width, RECT_TOP(isect) - r->y + 1);
+ result = area_add(result, &extra);
+ }
+
+ if (RECT_RIGHT(isect) < RECT_RIGHT(*r)) {
+ RECT_SET(extra, RECT_RIGHT(isect) + 1, r->y,
+ RECT_RIGHT(*r) - RECT_RIGHT(isect), r->height);
+ result = area_add(result, &extra);
+ }
+
+ if (RECT_BOTTOM(isect) < RECT_BOTTOM(*r)) {
+ RECT_SET(extra, r->x, RECT_BOTTOM(isect) + 1,
+ r->width, RECT_BOTTOM(*r) - RECT_BOTTOM(isect));
+ result = area_add(result, &extra);
+ }
+ }
+
+ g_free(r);
+ }
+ g_slist_free(list);
+ return result;
+}
+
+static gint area_cmp(gconstpointer p1, gconstpointer p2, gpointer data)
+{
+ ObClient *c = data;
+ Rect *carea = &c->frame->area;
+ const Rect *a1 = p1, *a2 = p2;
+ gboolean diffhead = FALSE;
+ guint i;
+ Rect *a;
+
+ for (i = 0; i < screen_num_monitors; ++i) {
+ a = screen_physical_area_monitor(i);
+ if (RECT_CONTAINS(*a, a1->x, a1->y) &&
+ !RECT_CONTAINS(*a, a2->x, a2->y))
+ {
+ diffhead = TRUE;
+ break;
+ }
+ }
+
+ /* has to be more than me in the group */
+ if (diffhead && c->group && c->group->members->next) {
+ guint *num, most;
+ GSList *it;
+
+ /* find how many clients in the group are on each monitor, use the
+ monitor with the most in it */
+ num = g_new0(guint, screen_num_monitors);
+ for (it = c->group->members; it; it = g_slist_next(it))
+ if (it->data != c)
+ ++num[client_monitor(it->data)];
+ most = 0;
+ for (i = 1; i < screen_num_monitors; ++i)
+ if (num[i] > num[most])
+ most = i;
+
+ a = screen_physical_area_monitor(most);
+ if (RECT_CONTAINS(*a, a1->x, a1->y))
+ return -1;
+ if (RECT_CONTAINS(*a, a2->x, a2->y))
+ return 1;
+ }
+
+ return MIN((a1->width - carea->width), (a1->height - carea->height)) -
+ MIN((a2->width - carea->width), (a2->height - carea->height));
+}
+
+typedef enum
+{
+ SMART_FULL,
+ SMART_GROUP,
+ SMART_FOCUSED
+} ObSmartType;
+
+#define SMART_IGNORE(placer, c) \
+ (placer == c || !c->frame->visible || c->shaded || !client_normal(c) || \
+ (c->desktop != DESKTOP_ALL && \
+ c->desktop != (placer->desktop == DESKTOP_ALL ? \
+ screen_desktop : placer->desktop)))
+
+static gboolean place_smart(ObClient *client, gint *x, gint *y,
+ ObSmartType type)
+{
+ guint i;
+ gboolean ret = FALSE;
+ GSList *spaces = NULL, *sit;
+ GList *it;
+
+ for (i = 0; i < screen_num_monitors; ++i)
+ spaces = area_add(spaces, screen_area_monitor(client->desktop, i));
+
+ if (type == SMART_FULL || type == SMART_FOCUSED) {
+ gboolean found_foc = FALSE, stop = FALSE;
+ ObClient *foc;
+ GList *list;
+
+ list = focus_order[client->desktop == DESKTOP_ALL ?
+ screen_desktop : client->desktop];
+ foc = list ? list->data : NULL;
+
+ for (it = stacking_list; it && !stop; it = g_list_next(it))
+ {
+ ObClient *c;
+
+ if (WINDOW_IS_CLIENT(it->data))
+ c = it->data;
+ else
+ continue;
+
+ if (!SMART_IGNORE(client, c)) {
+ if (type == SMART_FOCUSED) {
+ if (c->layer <= client->layer && found_foc)
+ stop = TRUE;
+ }
+ if (!stop)
+ spaces = area_remove(spaces, &c->frame->area);
+ }
+
+ if (c == foc)
+ found_foc = TRUE;
+ }
+ } else if (type == SMART_GROUP) {
+ /* has to be more than me in the group */
+ if (!client->group || !client->group->members->next)
+ return FALSE;
+
+ for (sit = client->group->members; sit; sit = g_slist_next(sit)) {
+ ObClient *c = sit->data;
+ if (!SMART_IGNORE(client, c))
+ spaces = area_remove(spaces, &c->frame->area);
+ }
+ } else
+ g_assert_not_reached();
+
+ spaces = g_slist_sort_with_data(spaces, area_cmp, client);
+
+ for (sit = spaces; sit; sit = g_slist_next(sit)) {
+ Rect *r = sit->data;
+
+ if (!ret) {
+ if (r->width >= client->frame->area.width &&
+ r->height >= client->frame->area.height) {
+ ret = TRUE;
+ if (type != SMART_FULL) {
+ *x = r->x + (r->width - client->frame->area.width) / 2;
+ *y = r->y + (r->height - client->frame->area.height) / 2;
+ } else {
+ *x = r->x;
+ *y = r->y;
+ }
+ }
+ }
+
+ g_free(r);
+ }
+ g_slist_free(spaces);
+
+ return ret;
+}
+
+static gboolean place_under_mouse(ObClient *client, gint *x, gint *y)
+{
+ guint i;
+ gint l, r, t, b;
+ gint px, py;
+ Rect *area;
+
+ screen_pointer_pos(&px, &py);
+
+ for (i = 0; i < screen_num_monitors; ++i) {
+ area = screen_area_monitor(client->desktop, i);
+ if (RECT_CONTAINS(*area, px, py))
+ break;
+ }
+ if (i == screen_num_monitors)
+ area = screen_area_monitor(client->desktop, 0);
+
+ l = area->x;
+ t = area->y;
+ r = area->x + area->width - client->frame->area.width;
+ b = area->y + area->height - client->frame->area.height;
+
+ *x = px - client->area.width / 2 - client->frame->size.left;
+ *x = MIN(MAX(*x, l), r);
+ *y = py - client->area.height / 2 - client->frame->size.top;
+ *y = MIN(MAX(*y, t), b);