GitLab

(MATRIX_ROW_OVERLAPS_PRED_P): New.
(MATRIX_ROW_OVERLAPS_SUCC_P): New.
(struct glyph_row): Add flag overlapped_p.
(MATRIX_ROW_OVERLAPPING_P): New.
(struct redisplay_interface): Add
fix_overlapping_area.
(struct glyph): Add overlaps_vertically_p.
(struct glyph_row): Add phys_ascent and
phys_height.
(struct it): Add phys_ascent, phys_descent, max_phys_ascent,
max_phys_descent.