termpty: DECERA only changes codepoints

src/bin/termpty.c

@@ -1585,6 +1585,19 @@ termpty_cell_fill(Termpty *ty, Termcell *src, Termcell *dst, int n)
      }
 }
 
+void
+termpty_cells_set_content(Termpty *ty, Termcell *cells,
+                          Eina_Unicode codepoint, int count)
+{
+   int i;
+   for (i = 0; i < count; i++)
+     {
+        _handle_block_codepoint_overwrite(ty, cells[i].codepoint, codepoint);
+        cells[i].codepoint = codepoint;
+     }
+}
+
+
 void
 termpty_cell_codepoint_att_fill(Termpty *ty, Eina_Unicode codepoint,
                                 Termatt att, Termcell *dst, int n)

src/bin/termpty.h

@@ -255,6 +255,8 @@ Termblock *termpty_block_chid_get(Termpty *ty, const char *chid);
 void       termpty_cell_copy(Termpty *ty, Termcell *src, Termcell *dst, int n);
 void       termpty_cell_fill(Termpty *ty, Termcell *src, Termcell *dst, int n);
 void       termpty_cell_codepoint_att_fill(Termpty *ty, Eina_Unicode codepoint, Termatt att, Termcell *dst, int n);
+void       termpty_cells_set_content(Termpty *ty, Termcell *cells,
+                          Eina_Unicode codepoint, int count);
 void       termpty_screen_swap(Termpty *ty);
 
 ssize_t termpty_line_length(const Termcell *cells, ssize_t nb_cells);

src/bin/termptyesc.c

@@ -930,7 +930,7 @@ _handle_esc_csi_decera(Termpty *ty, Eina_Unicode **b)
    for (; top <= bottom; top++)
      {
         Termcell *cells = &(TERMPTY_SCREEN(ty, left, top));
-        termpty_cells_clear(ty, cells, len);
+        termpty_cells_set_content(ty, cells, ' ', len);
      }
 }