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(get_next_display_element): Handle string display correctly when

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checking for the end of a box run.
This commit is contained in:
Chong Yidong 2008-09-20 21:44:34 +00:00
parent a9f0145a1e
commit d3864ce98c
1 changed files with 44 additions and 7 deletions
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51
src/xdisp.c
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@ -5940,14 +5940,51 @@ get_next_display_element (it)
if (it->face_box_p
&& it->s == NULL)
{
int face_id;
struct face *face;
if (it->method == GET_FROM_STRING && it->sp)
{
int face_id = underlying_face_id (it);
struct face *face = FACE_FROM_ID (it->f, face_id);
it->end_of_box_run_p
= ((face_id = face_after_it_pos (it),
face_id != it->face_id)
&& (face = FACE_FROM_ID (it->f, face_id),
face->box == FACE_NO_BOX));
if (face)
{
if (face->box == FACE_NO_BOX)
{
/* If the box comes from face properties in a
display string, check faces in that string. */
int string_face_id = face_after_it_pos (it);
it->end_of_box_run_p
= (FACE_FROM_ID (it->f, string_face_id)->box
== FACE_NO_BOX);
}
/* Otherwise, the box comes from the underlying face.
If this is the last string character displayed, check
the next buffer location. */
else if ((IT_STRING_CHARPOS (*it) >= SCHARS (it->string) - 1)
&& (it->current.overlay_string_index
== it->n_overlay_strings - 1))
{
EMACS_INT ignore;
int next_face_id;
struct text_pos pos = it->current.pos;
INC_TEXT_POS (pos, it->multibyte_p);
next_face_id = face_at_buffer_position
(it->w, CHARPOS (pos), it->region_beg_charpos,
it->region_end_charpos, &ignore,
(IT_CHARPOS (*it) + TEXT_PROP_DISTANCE_LIMIT), 0);
it->end_of_box_run_p
= (FACE_FROM_ID (it->f, next_face_id)->box
== FACE_NO_BOX);
}
}
}
else
{
int face_id = face_after_it_pos (it);
it->end_of_box_run_p
= (face_id != it->face_id
&& FACE_FROM_ID (it->f, face_id)->box == FACE_NO_BOX);
}
}
/* Value is 0 if end of buffer or string reached. */