diff options
| -rw-r--r-- | src/dispnew.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/dispnew.c b/src/dispnew.c index 1b8b726b7f3..4758aabe967 100644 --- a/src/dispnew.c +++ b/src/dispnew.c @@ -2636,10 +2636,21 @@ build_frame_matrix_from_leaf_window (struct glyph_matrix *frame_matrix, struct w if (current_row_p) { - /* Copy window row to frame row. */ - memcpy (frame_row->glyphs[TEXT_AREA] + window_matrix->matrix_x, - window_row->glyphs[0], - window_matrix->matrix_w * sizeof (struct glyph)); + /* If the desired glyphs for this row haven't been built, + copy from the corresponding current row, but only if it + is enabled, because ottherwise its contents are invalid. */ + struct glyph *to = frame_row->glyphs[TEXT_AREA] + window_matrix->matrix_x; + struct glyph *from = window_row->glyphs[0]; + for (int i = 0; i < window_matrix->matrix_w; ++i) + { + if (window_row->enabled_p) + to[i] = from[i]; + else + { + to[i] = space_glyph; + to[i].frame = f; + } + } } else { |