===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/grid.c,v
retrieving revision 1.115
retrieving revision 1.116
diff -c -r1.115 -r1.116
*** src/usr.bin/tmux/grid.c	2020/06/02 20:10:23	1.115
--- src/usr.bin/tmux/grid.c	2020/06/02 20:51:46	1.116
***************
*** 1,4 ****
! /* $OpenBSD: grid.c,v 1.115 2020/06/02 20:10:23 nicm Exp $ */
  
  /*
   * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
--- 1,4 ----
! /* $OpenBSD: grid.c,v 1.116 2020/06/02 20:51:46 nicm Exp $ */
  
  /*
   * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
***************
*** 40,47 ****
  	{ { ' ' }, 0, 1, 1 }, 0, 0, 8, 8, 0
  };
  
  /* Cleared grid cell data. */
! const struct grid_cell grid_cleared_cell = {
  	{ { ' ' }, 0, 1, 1 }, 0, GRID_FLAG_CLEARED, 8, 8, 0
  };
  static const struct grid_cell_entry grid_cleared_entry = {
--- 40,55 ----
  	{ { ' ' }, 0, 1, 1 }, 0, 0, 8, 8, 0
  };
  
+ /*
+  * Padding grid cell data. Padding cells are the only zero width cell that
+  * appears in the grid - because of this, they are always extended cells.
+  */
+ static const struct grid_cell grid_padding_cell = {
+ 	{ { '!' }, 0, 0, 0 }, 0, GRID_FLAG_PADDING, 8, 8, 0
+ };
+ 
  /* Cleared grid cell data. */
! static const struct grid_cell grid_cleared_cell = {
  	{ { ' ' }, 0, 1, 1 }, 0, GRID_FLAG_CLEARED, 8, 8, 0
  };
  static const struct grid_cell_entry grid_cleared_entry = {
***************
*** 524,530 ****
  		grid_get_cell1(&gd->linedata[py], px, gc);
  }
  
! /* Set cell at relative position. */
  void
  grid_set_cell(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc)
  {
--- 532,538 ----
  		grid_get_cell1(&gd->linedata[py], px, gc);
  }
  
! /* Set cell at position. */
  void
  grid_set_cell(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc)
  {
***************
*** 547,553 ****
  		grid_store_cell(gce, gc, gc->data.data[0]);
  }
  
! /* Set cells at relative position. */
  void
  grid_set_cells(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc,
      const char *s, size_t slen)
--- 555,568 ----
  		grid_store_cell(gce, gc, gc->data.data[0]);
  }
  
! /* Set padding at position. */
! void
! grid_set_padding(struct grid *gd, u_int px, u_int py)
! {
! 	grid_set_cell(gd, px, py, &grid_padding_cell);
! }
! 
! /* Set cells at position. */
  void
  grid_set_cells(struct grid *gd, u_int px, u_int py, const struct grid_cell *gc,
      const char *s, size_t slen)