Dogcows Code - chaz/openbox/blob - openbox/place.c

   1 #include "client.h"
   2 #include "group.h"
   3 #include "screen.h"
   4 #include "frame.h"
   5
   6 static Rect* pick_head(ObClient *c)
   7 {
   8     /* try direct parent first */
   9     if (c->transient_for && c->transient_for != OB_TRAN_GROUP) {
  10         return screen_area_monitor(c->desktop,
  11                                    client_monitor(c->transient_for));
  12     }
  13
  14     /* more than one guy in his group (more than just him) */
  15     if (c->group && c->group->members->next) {
  16         GSList *it;
  17
  18         /* try on the client's desktop */
  19         for (it = c->group->members; it; it = g_slist_next(it)) {
  20             ObClient *itc = it->data;
  21             if (itc != c &&
  22                 (itc->desktop == c->desktop ||
  23                  itc->desktop == DESKTOP_ALL || c->desktop == DESKTOP_ALL))
  24                 return screen_area_monitor(c->desktop,
  25                                            client_monitor(it->data));
  26         }
  27
  28         /* try on all desktops */
  29         for (it = c->group->members; it; it = g_slist_next(it)) {
  30             ObClient *itc = it->data;
  31             if (itc != c)
  32                 return screen_area_monitor(c->desktop,
  33                                            client_monitor(it->data));
  34         }
  35     }
  36
  37     return NULL;
  38 }
  39
  40 static gboolean place_random(ObClient *client, gint *x, gint *y)
  41 {
  42     int l, r, t, b;
  43     Rect *area;
  44
  45     area = pick_head(client);
  46     if (!area)
  47         area = screen_area_monitor(client->desktop,
  48                                    g_random_int_range(0, screen_num_monitors));
  49
  50     l = area->x;
  51     t = area->y;
  52     r = area->x + area->width - client->frame->area.width;
  53     b = area->y + area->height - client->frame->area.height;
  54
  55     if (r > l) *x = g_random_int_range(l, r + 1);
  56     else       *x = 0;
  57     if (b > t) *y = g_random_int_range(t, b + 1);
  58     else       *y = 0;
  59
  60     /* get where the client should be */
  61     frame_frame_gravity(client->frame, x, y);
  62
  63     return TRUE;
  64 }
  65
  66 static gboolean place_transient(ObClient *client, gint *x, gint *y)
  67 {
  68     if (client->transient_for) {
  69         if (client->transient_for != OB_TRAN_GROUP) {
  70             ObClient *c = client;
  71             ObClient *p = client->transient_for;
  72             *x = (p->frame->area.width - c->frame->area.width) / 2 +
  73                 p->frame->area.x;
  74             *y = (p->frame->area.height - c->frame->area.height) / 2 +
  75                 p->frame->area.y;
  76             return TRUE;
  77         } else {
  78             GSList *it;
  79             gboolean first = TRUE;
  80             int l, r, t, b;
  81             for (it = client->group->members; it; it = it->next) {
  82                 ObClient *m = it->data;
  83                 if (!(m == client || m->transient_for)) {
  84                     if (first) {
  85                         l = m->frame->area.x;
  86                         t = m->frame->area.y;
  87                         r = m->frame->area.x + m->frame->area.width - 1;
  88                         b = m->frame->area.y + m->frame->area.height - 1;
  89                         first = FALSE;
  90                     } else {
  91                         l = MIN(l, m->frame->area.x);
  92                         t = MIN(t, m->frame->area.y);
  93                         r = MAX(r, m->frame->area.x +m->frame->area.width - 1);
  94                         b = MAX(b, m->frame->area.y +m->frame->area.height -1);
  95                     }
  96                 }
  97             }
  98             if (!first) {
  99                 *x = ((r + 1 - l) - client->frame->area.width) / 2 + l;
 100                 *y = ((b + 1 - t) - client->frame->area.height) / 2 + t;
 101                 return TRUE;
 102             }
 103         }
 104     }
 105     return FALSE;
 106 }
 107
 108 static gboolean place_dialog(ObClient *client, gint *x, gint *y)
 109 {
 110     /* center parentless dialogs on the screen */
 111     if (client->type == OB_CLIENT_TYPE_DIALOG) {
 112         Rect *area;
 113
 114         area = pick_head(client);
 115         if (!area)
 116             area = screen_area_monitor(client->desktop, 0);
 117
 118         *x = (area->width - client->frame->area.width) / 2 + area->x;
 119         *y = (area->height - client->frame->area.height) / 2 + area->y;
 120         return TRUE;
 121     }
 122     return FALSE;
 123 }
 124
 125 void place_client(ObClient *client, gint *x, gint *y)
 126 {
 127     if (client->positioned)
 128         return;
 129     if (place_transient(client, x, y))
 130         return;
 131     if (place_dialog(client, x, y))
 132         return;
 133     if (place_random(client, x, y))
 134         return;
 135     g_assert_not_reached(); /* the last one better succeed */
 136 }