• Eli Zaretskii's avatar
    Initial reimplementation of calculating line edge positions in bidi lines. · d36fe237
    Eli Zaretskii authored
     dispextern.h (struct glyph_row): New members minpos and maxpos.
     (MATRIX_ROW_START_CHARPOS, MATRIX_ROW_START_BYTEPOS)
     (MATRIX_ROW_END_CHARPOS, MATRIX_ROW_END_BYTEPOS): Reference minpos
     and maxpos members instead of start.pos and end.pos, respectively.
     xdisp.c (display_line): Compare IT_CHARPOS with the position in
     row->start.pos, rather than with MATRIX_ROW_START_CHARPOS.
     (cursor_row_p): Use row->end.pos rather than MATRIX_ROW_END_CHARPOS.
     (try_window_reusing_current_matrix, try_window_id): Use
     ROW->minpos rather than ROW->start.pos.
     (init_from_display_pos, init_iterator): Use EMACS_INT for
     character and byte positions.
     (find_row_edges): Renamed from find_row_end.  Accept additional
     arguments for minimum and maximum buffer positions seen by
     display_line for this row.  Don't use iterator to find the
     position following the maximum one; instead, increment the
     position found by display_line directly.
     (display_line): Record minimum and maximum buffer positions for
     glyphs in this row.  Record the position of the newline that
     terminates the line.
     dispnew.c (increment_row_positions, check_matrix_invariants):
     Increment and check row->start.pos and row->end.pos, in addition
     to MATRIX_ROW_START_CHARPOS and MATRIX_ROW_END_CHARPOS.
    d36fe237
ChangeLog 819 KB