-/* this be mostly ripped from fvwm */
-ObClient *client_find_directional(ObClient *c, ObDirection dir)
-{
- gint my_cx, my_cy, his_cx, his_cy;
- gint offset = 0;
- gint distance = 0;
- gint score, best_score;
- ObClient *best_client, *cur;
- GList *it;
-
- if(!client_list)
- return NULL;
-
- /* first, find the centre coords of the currently focused window */
- my_cx = c->frame->area.x + c->frame->area.width / 2;
- my_cy = c->frame->area.y + c->frame->area.height / 2;
-
- best_score = -1;
- best_client = NULL;
-
- for(it = g_list_first(client_list); it; it = g_list_next(it)) {
- cur = it->data;
-
- /* the currently selected window isn't interesting */
- if(cur == c)
- continue;
- if (!client_normal(cur))
- continue;
- /* using c->desktop instead of screen_desktop doesn't work if the
- * current window was omnipresent, hope this doesn't have any other
- * side effects */
- if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL)
- continue;
- if(cur->iconic)
- continue;
- if(!(client_focus_target(cur) == cur &&
- client_can_focus(cur)))
- continue;
-
- /* find the centre coords of this window, from the
- * currently focused window's point of view */
- his_cx = (cur->frame->area.x - my_cx)
- + cur->frame->area.width / 2;
- his_cy = (cur->frame->area.y - my_cy)
- + cur->frame->area.height / 2;
-
- if(dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST ||
- dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST) {
- gint tx;
- /* Rotate the diagonals 45 degrees counterclockwise.
- * To do this, multiply the matrix /+h +h\ with the
- * vector (x y). \-h +h/
- * h = sqrt(0.5). We can set h := 1 since absolute
- * distance doesn't matter here. */
- tx = his_cx + his_cy;
- his_cy = -his_cx + his_cy;
- his_cx = tx;
- }
-
- switch(dir) {
- case OB_DIRECTION_NORTH:
- case OB_DIRECTION_SOUTH:
- case OB_DIRECTION_NORTHEAST:
- case OB_DIRECTION_SOUTHWEST:
- offset = (his_cx < 0) ? -his_cx : his_cx;
- distance = ((dir == OB_DIRECTION_NORTH ||
- dir == OB_DIRECTION_NORTHEAST) ?
- -his_cy : his_cy);
- break;
- case OB_DIRECTION_EAST:
- case OB_DIRECTION_WEST:
- case OB_DIRECTION_SOUTHEAST:
- case OB_DIRECTION_NORTHWEST:
- offset = (his_cy < 0) ? -his_cy : his_cy;
- distance = ((dir == OB_DIRECTION_WEST ||
- dir == OB_DIRECTION_NORTHWEST) ?
- -his_cx : his_cx);
- break;
- }
-
- /* the target must be in the requested direction */
- if(distance <= 0)
- continue;
-
- /* Calculate score for this window. The smaller the better. */
- score = distance + offset;
-
- /* windows more than 45 degrees off the direction are
- * heavily penalized and will only be chosen if nothing
- * else within a million pixels */
- if(offset > distance)
- score += 1000000;
-
- if(best_score == -1 || score < best_score)
- best_client = cur,
- best_score = score;
- }
-
- return best_client;
-}
-