src/usr.bin/tmux/server-client.c - diff

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Diff for /src/usr.bin/tmux/server-client.c between version 1.387 and 1.388

-version 1.387, 2021/09/27 19:12:00
+version 1.388, 2021/10/11 13:27:50
 Line 147
 Line 147
 Line 147
          server_redraw_client(c);
  }
+ /*
+  * Given overlay position and dimensions, return parts of the input range which
+  * are visible.
+  */
+ void
+ server_client_overlay_range(u_int x, u_int y, u_int sx, u_int sy, u_int px,
+     u_int py, u_int nx, struct overlay_ranges *r)
+ {
+         u_int   ox, onx;
+         /* Return up to 2 ranges. */
+         r->px[2] = 0;
+         r->nx[2] = 0;
+         /* Trivial case of no overlap in the y direction. */
+         if (py < y || py > y + sy - 1) {
+                 r->px[0] = px;
+                 r->nx[0] = nx;
+                 r->px[1] = 0;
+                 r->nx[1] = 0;
+                 return;
+         }
+         /* Visible bit to the left of the popup. */
+         if (px < x) {
+                 r->px[0] = px;
+                 r->nx[0] = x - px;
+                 if (r->nx[0] > nx)
+                         r->nx[0] = nx;
+         } else {
+                 r->px[0] = 0;
+                 r->nx[0] = 0;
+         }
+         /* Visible bit to the right of the popup. */
+         ox = x + sx;
+         if (px > ox)
+                 ox = px;
+         onx = px + nx;
+         if (onx > ox) {
+                 r->px[1] = ox;
+                 r->nx[1] = onx - ox;
+         } else {
+                 r->px[1] = 0;
+                 r->nx[1] = 0;
+         }
+ }
  /* Check if this client is inside this server. */
  int
  server_client_check_nested(struct client *c)