/[emacs]/emacs/src/xdisp.c
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revision 1.827 by jhd, Wed Apr 23 17:51:33 2003 UTC revision 1.828 by rms, Wed Apr 30 12:03:53 2003 UTC
# Line 5823  move_it_vertically_backward (it, dy) Line 5823  move_it_vertically_backward (it, dy)
5823    
5824    move_it_to (&it2, start_pos, -1, -1, -1, MOVE_TO_POS);    move_it_to (&it2, start_pos, -1, -1, -1, MOVE_TO_POS);
5825    xassert (IT_CHARPOS (*it) >= BEGV);    xassert (IT_CHARPOS (*it) >= BEGV);
5826      /* H is the actual vertical distance from the position in *IT
5827         and the starting position.  */
5828    h = it2.current_y - it->current_y;    h = it2.current_y - it->current_y;
5829      /* NLINES is the distance in number of lines.  */
5830    nlines = it2.vpos - it->vpos;    nlines = it2.vpos - it->vpos;
5831    
5832    /* Correct IT's y and vpos position.  */    /* Correct IT's y and vpos position
5833         so that they are relative to the starting point.  */
5834    it->vpos -= nlines;    it->vpos -= nlines;
5835    it->current_y -= h;    it->current_y -= h;
5836    
# Line 5838  move_it_vertically_backward (it, dy) Line 5842  move_it_vertically_backward (it, dy)
5842          move_it_by_lines (it, nlines, 1);          move_it_by_lines (it, nlines, 1);
5843        xassert (IT_CHARPOS (*it) <= start_pos);        xassert (IT_CHARPOS (*it) <= start_pos);
5844      }      }
5845    else if (nlines)    else
5846      {      {
5847        /* The y-position we try to reach.  Note that h has been        /* The y-position we try to reach, relative to *IT.
5848           subtracted in front of the if-statement.  */           Note that H has been subtracted in front of the if-statement.  */
5849        int target_y = it->current_y + h - dy;        int target_y = it->current_y + h - dy;
5850        int y0 = it3.current_y;        int y0 = it3.current_y;
5851        int y1 = line_bottom_y (&it3);        int y1 = line_bottom_y (&it3);
# Line 9999  redisplay_internal (preserve_echo_area) Line 10003  redisplay_internal (preserve_echo_area)
10003                    /* Update the display.  */                    /* Update the display.  */
10004                    set_window_update_flags (XWINDOW (f->root_window), 1);                    set_window_update_flags (XWINDOW (f->root_window), 1);
10005                    pause |= update_frame (f, 0, 0);                    pause |= update_frame (f, 0, 0);
10006    #if 0  /* Exiting the loop can leave the wrong value for buffer_shared.  */
10007                    if (pause)                    if (pause)
10008                      break;                      break;
10009    #endif
10010    
10011                    if (n == size)                    if (n == size)
10012                      {                      {

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