+ flags = (Bool *)malloc(sizeof(Bool) * n);
+ for(i = 0; i < n; i++)
+ flags[i] = False;
+ /* next double-loop seeks any combination of retrieved Xinerama info
+ * with existing monitors, this is used to avoid unnecessary
+ * re-allocations of monitor structs */
+ for(i = 0, nn = n; i < n; i++)
+ for(j = 0, m = mons; m; m = m->next, j++)
+ if(!flags[j]) {
+ if((flags[j] = (
+ info[i].x_org == m->mx
+ && info[i].y_org == m->my
+ && info[i].width == m->mw
+ && info[i].height == m->mh)
+ ))
+ --nn;
+ }
+ if(nn == 0) { /* no need to re-allocate monitors */
+ j = 0;
+ for(i = 0, m = mons; m; m = m->next, i++) {
+ m->num = info[i].screen_number;
+ if(info[i].x_org != m->mx
+ || info[i].y_org != m->my
+ || info[i].width != m->mw
+ || info[i].height != m->mh)
+ {
+ m->mx = m->wx = info[i].x_org;
+ m->my = m->wy = info[i].y_org;
+ m->mw = m->ww = info[i].width;
+ m->mh = m->wh = info[i].height;
+ updatebarpos(m);
+ j++;
+ }
+ }
+ XFree(info);
+ free(flags);
+ return j > 0;
+ }
+ /* next algorithm only considers unique geometries as separate screens */
+ for(i = 0; i < n; i++)
+ flags[i] = False; /* used for ignoring certain monitors */
+ for(i = 0, nn = n; i < n; i++)
+ for(j = 0; j < n; j++)
+ if(i != j && !flags[i]) {
+ if((flags[i] = (
+ info[i].x_org == info[j].x_org
+ && info[i].y_org == info[j].y_org
+ && info[i].width == info[j].width
+ && info[i].height == info[j].height)
+ ))
+ --nn;
+ }