#define SAVE_IT(ITCOPY,ITORIG,CACHE) \
do { \
if (CACHE) \
- xfree (CACHE); \
+ bidi_unshelve_cache (CACHE, 1); \
ITCOPY = ITORIG; \
CACHE = bidi_shelve_cache(); \
} while (0)
do { \
if (pITORIG != pITCOPY) \
*(pITORIG) = *(pITCOPY); \
- bidi_unshelve_cache (CACHE); \
+ bidi_unshelve_cache (CACHE, 0); \
CACHE = NULL; \
} while (0)
static int init_to_row_end (struct it *, struct window *,
struct glyph_row *);
static void back_to_previous_line_start (struct it *);
-static int forward_to_next_line_start (struct it *, int *);
+static int forward_to_next_line_start (struct it *, int *, struct bidi_it *);
static struct text_pos string_pos_nchars_ahead (struct text_pos,
Lisp_Object, EMACS_INT);
static struct text_pos string_pos (EMACS_INT, Lisp_Object);
*vpos = it2.vpos;
}
else
- xfree (it2data);
+ bidi_unshelve_cache (it2data, 1);
}
- bidi_unshelve_cache (itdata);
+ bidi_unshelve_cache (itdata, 0);
if (old_buffer)
set_buffer_internal_1 (old_buffer);
it->paragraph_embedding = R2L;
else
it->paragraph_embedding = NEUTRAL_DIR;
- bidi_unshelve_cache (NULL);
+ bidi_unshelve_cache (NULL, 0);
bidi_init_it (charpos, IT_BYTEPOS (*it), FRAME_WINDOW_P (it->f),
&it->bidi_it);
}
return endpos;
}
+/* How many characters forward to search for a display property or
+ display string. Enough for a screenful of 100 lines x 50
+ characters in a line. */
+#define MAX_DISP_SCAN 5000
+
/* Return the character position of a display string at or after
position specified by POSITION. If no display string exists at or
after POSITION, return ZV. A display string is either an overlay
text property whose value is a string. STRING is data about the
string to iterate; if STRING->lstring is nil, we are iterating a
buffer. FRAME_WINDOW_P is non-zero when we are displaying a window
- on a GUI frame. */
+ on a GUI frame. DISP_PROP is set to zero if we searched
+ MAX_DISP_SCAN characters forward without finding any display
+ strings, non-zero otherwise. It is set to 2 if the display string
+ uses any kind of `(space ...)' spec that will produce a stretch of
+ white space in the text area. */
EMACS_INT
compute_display_string_pos (struct text_pos *position,
- struct bidi_string_data *string, int frame_window_p)
+ struct bidi_string_data *string,
+ int frame_window_p, int *disp_prop)
{
/* OBJECT = nil means current buffer. */
Lisp_Object object =
(string && STRINGP (string->lstring)) ? string->lstring : Qnil;
- Lisp_Object pos, spec;
+ Lisp_Object pos, spec, limpos;
int string_p = (string && (STRINGP (string->lstring) || string->s));
EMACS_INT eob = string_p ? string->schars : ZV;
EMACS_INT begb = string_p ? 0 : BEGV;
EMACS_INT bufpos, charpos = CHARPOS (*position);
+ EMACS_INT lim =
+ (charpos < eob - MAX_DISP_SCAN) ? charpos + MAX_DISP_SCAN : eob;
struct text_pos tpos;
+ int rv = 0;
+
+ *disp_prop = 1;
if (charpos >= eob
/* We don't support display properties whose values are strings
|| string->from_disp_str
/* C strings cannot have display properties. */
|| (string->s && !STRINGP (object)))
- return eob;
+ {
+ *disp_prop = 0;
+ return eob;
+ }
/* If the character at CHARPOS is where the display string begins,
return CHARPOS. */
|| !EQ (Fget_char_property (make_number (charpos - 1), Qdisplay,
object),
spec))
- && handle_display_spec (NULL, spec, object, Qnil, &tpos, bufpos,
- frame_window_p))
- return charpos;
+ && (rv = handle_display_spec (NULL, spec, object, Qnil, &tpos, bufpos,
+ frame_window_p)))
+ {
+ if (rv == 2)
+ *disp_prop = 2;
+ return charpos;
+ }
/* Look forward for the first character with a `display' property
that will replace the underlying text when displayed. */
+ limpos = make_number (lim);
do {
- pos = Fnext_single_char_property_change (pos, Qdisplay, object, Qnil);
+ pos = Fnext_single_char_property_change (pos, Qdisplay, object, limpos);
CHARPOS (tpos) = XFASTINT (pos);
+ if (CHARPOS (tpos) >= lim)
+ {
+ *disp_prop = 0;
+ break;
+ }
if (STRINGP (object))
BYTEPOS (tpos) = string_char_to_byte (object, CHARPOS (tpos));
else
BYTEPOS (tpos) = CHAR_TO_BYTE (CHARPOS (tpos));
- if (CHARPOS (tpos) >= eob)
- break;
spec = Fget_char_property (pos, Qdisplay, object);
if (!STRINGP (object))
bufpos = CHARPOS (tpos);
} while (NILP (spec)
- || !handle_display_spec (NULL, spec, object, Qnil, &tpos, bufpos,
- frame_window_p));
+ || !(rv = handle_display_spec (NULL, spec, object, Qnil, &tpos,
+ bufpos, frame_window_p)));
+ if (rv == 2)
+ *disp_prop = 2;
return CHARPOS (tpos);
}
/* Subroutine of handle_display_prop. Returns non-zero if the display
specification in SPEC is a replacing specification, i.e. it would
replace the text covered by `display' property with something else,
- such as an image or a display string.
+ such as an image or a display string. If SPEC includes any kind or
+ `(space ...) specification, the value is 2; this is used by
+ compute_display_string_pos, which see.
See handle_single_display_spec for documentation of arguments.
frame_window_p is non-zero if the window being redisplayed is on a
EMACS_INT bufpos, int frame_window_p)
{
int replacing_p = 0;
+ int rv;
if (CONSP (spec)
/* Simple specerties. */
{
for (; CONSP (spec); spec = XCDR (spec))
{
- if (handle_single_display_spec (it, XCAR (spec), object, overlay,
- position, bufpos, replacing_p,
- frame_window_p))
+ if ((rv = handle_single_display_spec (it, XCAR (spec), object,
+ overlay, position, bufpos,
+ replacing_p, frame_window_p)))
{
- replacing_p = 1;
+ replacing_p = rv;
/* If some text in a string is replaced, `position' no
longer points to the position of `object'. */
if (!it || STRINGP (object))
{
int i;
for (i = 0; i < ASIZE (spec); ++i)
- if (handle_single_display_spec (it, AREF (spec, i), object, overlay,
- position, bufpos, replacing_p,
- frame_window_p))
+ if ((rv = handle_single_display_spec (it, AREF (spec, i), object,
+ overlay, position, bufpos,
+ replacing_p, frame_window_p)))
{
- replacing_p = 1;
+ replacing_p = rv;
/* If some text in a string is replaced, `position' no
longer points to the position of `object'. */
if (!it || STRINGP (object))
}
else
{
- if (handle_single_display_spec (it, spec, object, overlay,
- position, bufpos, 0, frame_window_p))
- replacing_p = 1;
+ if ((rv = handle_single_display_spec (it, spec, object, overlay,
+ position, bufpos, 0,
+ frame_window_p)))
+ replacing_p = rv;
}
return replacing_p;
if (valid_p && !display_replaced_p)
{
+ int retval = 1;
+
if (!it)
- return 1;
+ {
+ /* Callers need to know whether the display spec is any kind
+ of `(space ...)' spec that is about to affect text-area
+ display. */
+ if (CONSP (value) && EQ (XCAR (value), Qspace) && NILP (location))
+ retval = 2;
+ return retval;
+ }
/* Save current settings of IT so that we can restore them
when we are finished with the glyph property value. */
it->method = GET_FROM_STRETCH;
it->object = value;
*position = it->position = start_pos;
+ retval = 1 + (it->area == TEXT_AREA);
}
#ifdef HAVE_WINDOW_SYSTEM
else
}
#endif /* HAVE_WINDOW_SYSTEM */
- return 1;
+ return retval;
}
/* Invalid property or property not supported. Restore
EMACS_INT eob = (buffer_p ? ZV : it->end_charpos);
EMACS_INT bob = (buffer_p ? BEGV : 0);
+ xassert (eob >= CHARPOS (it->position) && CHARPOS (it->position) >= bob);
+
/* Maybe initialize paragraph direction. If we are at the beginning
of a new paragraph, next_element_from_buffer may not have a
chance to do that. */
/* prev_stop can be zero, so check against BEGV as well. */
while (it->bidi_it.charpos >= bob
&& it->prev_stop <= it->bidi_it.charpos
- && it->bidi_it.charpos < CHARPOS (it->position))
+ && it->bidi_it.charpos < CHARPOS (it->position)
+ && it->bidi_it.charpos < eob)
bidi_move_to_visually_next (&it->bidi_it);
/* Record the stop_pos we just crossed, for when we cross it
back, maybe. */
/* If we ended up not where pop_it put us, resync IT's
positional members with the bidi iterator. */
if (it->bidi_it.charpos != CHARPOS (it->position))
- {
- SET_TEXT_POS (it->position,
- it->bidi_it.charpos, it->bidi_it.bytepos);
- if (buffer_p)
- it->current.pos = it->position;
- else
- it->current.string_pos = it->position;
- }
+ SET_TEXT_POS (it->position, it->bidi_it.charpos, it->bidi_it.bytepos);
+ if (buffer_p)
+ it->current.pos = it->position;
+ else
+ it->current.string_pos = it->position;
}
/* Restore IT's settings from IT->stack. Called, for example, when no
continuously over the text). Otherwise, don't change the value
of *SKIPPED_P.
+ If BIDI_IT_PREV is non-NULL, store into it the state of the bidi
+ iterator on the newline, if it was found.
+
Newlines may come from buffer text, overlay strings, or strings
displayed via the `display' property. That's the reason we can't
simply use find_next_newline_no_quit.
leads to wrong cursor motion. */
static int
-forward_to_next_line_start (struct it *it, int *skipped_p)
+forward_to_next_line_start (struct it *it, int *skipped_p,
+ struct bidi_it *bidi_it_prev)
{
EMACS_INT old_selective;
int newline_found_p, n;
&& it->c == '\n'
&& CHARPOS (it->position) == IT_CHARPOS (*it))
{
+ if (it->bidi_p && bidi_it_prev)
+ *bidi_it_prev = it->bidi_it;
set_iterator_to_next (it, 0);
it->c = 0;
return 1;
if (!get_next_display_element (it))
return 0;
newline_found_p = it->what == IT_CHARACTER && it->c == '\n';
+ if (newline_found_p && it->bidi_p && bidi_it_prev)
+ *bidi_it_prev = it->bidi_it;
set_iterator_to_next (it, 0);
}
xassert (!STRINGP (it->string));
- /* If we are not bidi-reordering, and there isn't any `display'
- property in sight, and no overlays, we can just use the
- position of the newline in buffer text. */
- if (!it->bidi_p
- && (it->stop_charpos >= limit
- || ((pos = Fnext_single_property_change (make_number (start),
- Qdisplay, Qnil,
- make_number (limit)),
- NILP (pos))
- && next_overlay_change (start) == ZV)))
- {
- IT_CHARPOS (*it) = limit;
- IT_BYTEPOS (*it) = CHAR_TO_BYTE (limit);
+ /* If there isn't any `display' property in sight, and no
+ overlays, we can just use the position of the newline in
+ buffer text. */
+ if (it->stop_charpos >= limit
+ || ((pos = Fnext_single_property_change (make_number (start),
+ Qdisplay, Qnil,
+ make_number (limit)),
+ NILP (pos))
+ && next_overlay_change (start) == ZV))
+ {
+ if (!it->bidi_p)
+ {
+ IT_CHARPOS (*it) = limit;
+ IT_BYTEPOS (*it) = CHAR_TO_BYTE (limit);
+ }
+ else
+ {
+ struct bidi_it bprev;
+
+ /* Help bidi.c avoid expensive searches for display
+ properties and overlays, by telling it that there are
+ none up to `limit'. */
+ if (it->bidi_it.disp_pos < limit)
+ {
+ it->bidi_it.disp_pos = limit;
+ it->bidi_it.disp_prop = 0;
+ }
+ do {
+ bprev = it->bidi_it;
+ bidi_move_to_visually_next (&it->bidi_it);
+ } while (it->bidi_it.charpos != limit);
+ IT_CHARPOS (*it) = limit;
+ IT_BYTEPOS (*it) = it->bidi_it.bytepos;
+ if (bidi_it_prev)
+ *bidi_it_prev = bprev;
+ }
*skipped_p = newline_found_p = 1;
}
else
&& !newline_found_p)
{
newline_found_p = ITERATOR_AT_END_OF_LINE_P (it);
+ if (newline_found_p && it->bidi_p && bidi_it_prev)
+ *bidi_it_prev = it->bidi_it;
set_iterator_to_next (it, 0);
}
}
pos = --IT_CHARPOS (it2);
--IT_BYTEPOS (it2);
it2.sp = 0;
- bidi_unshelve_cache (NULL);
+ bidi_unshelve_cache (NULL, 0);
it2.string_from_display_prop_p = 0;
it2.from_disp_prop_p = 0;
if (handle_display_prop (&it2) == HANDLED_RETURN
reseat_at_next_visible_line_start (struct it *it, int on_newline_p)
{
int newline_found_p, skipped_p = 0;
+ struct bidi_it bidi_it_prev;
- newline_found_p = forward_to_next_line_start (it, &skipped_p);
+ newline_found_p = forward_to_next_line_start (it, &skipped_p, &bidi_it_prev);
/* Skip over lines that are invisible because they are indented
more than the value of IT->selective. */
{
xassert (IT_BYTEPOS (*it) == BEGV
|| FETCH_BYTE (IT_BYTEPOS (*it) - 1) == '\n');
- newline_found_p = forward_to_next_line_start (it, &skipped_p);
+ newline_found_p =
+ forward_to_next_line_start (it, &skipped_p, &bidi_it_prev);
}
/* Position on the newline if that's what's requested. */
--IT_STRING_BYTEPOS (*it);
}
else
- /* Setting this flag will cause
- bidi_move_to_visually_next not to advance, but
- instead deliver the current character (newline),
- which is what the ON_NEWLINE_P flag wants. */
- it->bidi_it.first_elt = 1;
+ {
+ /* We need to restore the bidi iterator to the state
+ it had on the newline, and resync the IT's
+ position with that. */
+ it->bidi_it = bidi_it_prev;
+ IT_STRING_CHARPOS (*it) = it->bidi_it.charpos;
+ IT_STRING_BYTEPOS (*it) = it->bidi_it.bytepos;
+ }
}
}
else if (IT_CHARPOS (*it) > BEGV)
--IT_CHARPOS (*it);
--IT_BYTEPOS (*it);
}
- /* With bidi iteration, the call to `reseat' will cause
- bidi_move_to_visually_next deliver the current character,
- the newline, instead of advancing. */
+ else
+ {
+ /* We need to restore the bidi iterator to the state it
+ had on the newline and resync IT with that. */
+ it->bidi_it = bidi_it_prev;
+ IT_CHARPOS (*it) = it->bidi_it.charpos;
+ IT_BYTEPOS (*it) = it->bidi_it.bytepos;
+ }
reseat (it, it->current.pos, 0);
}
}
{
/* For bidi iteration, we need to prime prev_stop and
base_level_stop with our best estimations. */
- if (CHARPOS (pos) < it->prev_stop)
- {
- handle_stop_backwards (it, BEGV);
- if (CHARPOS (pos) < it->base_level_stop)
- it->base_level_stop = 0;
- }
- else if (CHARPOS (pos) > it->stop_charpos
- && it->stop_charpos >= BEGV)
- handle_stop_backwards (it, it->stop_charpos);
- else /* force_p */
- handle_stop (it);
+ /* Implementation note: Of course, POS is not necessarily a
+ stop position, so assigning prev_pos to it is a lie; we
+ should have called compute_stop_backwards. However, if
+ the current buffer does not include any R2L characters,
+ that call would be a waste of cycles, because the
+ iterator will never move back, and thus never cross this
+ "fake" stop position. So we delay that backward search
+ until the time we really need it, in next_element_from_buffer. */
+ if (CHARPOS (pos) != it->prev_stop)
+ it->prev_stop = CHARPOS (pos);
+ if (CHARPOS (pos) < it->base_level_stop)
+ it->base_level_stop = 0; /* meaning it's unknown */
+ handle_stop (it);
}
else
{
{
bidi_init_it (IT_CHARPOS (*it), IT_BYTEPOS (*it), FRAME_WINDOW_P (it->f),
&it->bidi_it);
- bidi_unshelve_cache (NULL);
+ bidi_unshelve_cache (NULL, 0);
it->bidi_it.paragraph_dir = NEUTRAL_DIR;
it->bidi_it.string.s = NULL;
it->bidi_it.string.lstring = Qnil;
struct text_pos position;
xassert (STRINGP (it->string));
- xassert (!it->bidi_p || it->string == it->bidi_it.string.lstring);
+ xassert (!it->bidi_p || EQ (it->string, it->bidi_it.string.lstring));
xassert (IT_STRING_CHARPOS (*it) >= 0);
position = it->current.string_pos;
embedding level, so test for that explicitly. */
&& !BIDI_AT_BASE_LEVEL (it->bidi_it))
{
- /* If we lost track of base_level_stop, we have no better place
- for handle_stop_backwards to start from than BEGV. This
- happens, e.g., when we were reseated to the previous
- screenful of text by vertical-motion. */
+ /* If we lost track of base_level_stop, we have no better
+ place for handle_stop_backwards to start from than string
+ beginning. This happens, e.g., when we were reseated to
+ the previous screenful of text by vertical-motion. */
if (it->base_level_stop <= 0
|| IT_STRING_CHARPOS (*it) < it->base_level_stop)
it->base_level_stop = 0;
return 1;
}
+/* Scan backwards from IT's current position until we find a stop
+ position, or until BEGV. This is called when we find ourself
+ before both the last known prev_stop and base_level_stop while
+ reordering bidirectional text. */
+
+static void
+compute_stop_pos_backwards (struct it *it)
+{
+ const int SCAN_BACK_LIMIT = 1000;
+ struct text_pos pos;
+ struct display_pos save_current = it->current;
+ struct text_pos save_position = it->position;
+ EMACS_INT charpos = IT_CHARPOS (*it);
+ EMACS_INT where_we_are = charpos;
+ EMACS_INT save_stop_pos = it->stop_charpos;
+ EMACS_INT save_end_pos = it->end_charpos;
+
+ xassert (NILP (it->string) && !it->s);
+ xassert (it->bidi_p);
+ it->bidi_p = 0;
+ do
+ {
+ it->end_charpos = min (charpos + 1, ZV);
+ charpos = max (charpos - SCAN_BACK_LIMIT, BEGV);
+ SET_TEXT_POS (pos, charpos, BYTE_TO_CHAR (charpos));
+ reseat_1 (it, pos, 0);
+ compute_stop_pos (it);
+ /* We must advance forward, right? */
+ if (it->stop_charpos <= charpos)
+ abort ();
+ }
+ while (charpos > BEGV && it->stop_charpos >= it->end_charpos);
+
+ if (it->stop_charpos <= where_we_are)
+ it->prev_stop = it->stop_charpos;
+ else
+ it->prev_stop = BEGV;
+ it->bidi_p = 1;
+ it->current = save_current;
+ it->position = save_position;
+ it->stop_charpos = save_stop_pos;
+ it->end_charpos = save_end_pos;
+}
+
/* Scan forward from CHARPOS in the current buffer/string, until we
find a stop position > current IT's position. Then handle the stop
position before that. This is called when we bump into a stop
EMACS_INT next_stop;
/* Scan in strict logical order. */
+ xassert (it->bidi_p);
it->bidi_p = 0;
do
{
}
while (charpos <= where_we_are);
- next_stop = it->stop_charpos;
- it->stop_charpos = it->prev_stop;
it->bidi_p = 1;
it->current = save_current;
it->position = save_position;
+ next_stop = it->stop_charpos;
+ it->stop_charpos = it->prev_stop;
handle_stop (it);
it->stop_charpos = next_stop;
}
xassert (IT_CHARPOS (*it) >= BEGV);
xassert (NILP (it->string) && !it->s);
xassert (!it->bidi_p
- || (it->bidi_it.string.lstring == Qnil
+ || (EQ (it->bidi_it.string.lstring, Qnil)
&& it->bidi_it.string.s == NULL));
/* With bidi reordering, the character to display might not be the
embedding level, so test for that explicitly. */
&& !BIDI_AT_BASE_LEVEL (it->bidi_it))
{
- /* If we lost track of base_level_stop, we have no better place
- for handle_stop_backwards to start from than BEGV. This
- happens, e.g., when we were reseated to the previous
- screenful of text by vertical-motion. */
if (it->base_level_stop <= 0
|| IT_CHARPOS (*it) < it->base_level_stop)
- it->base_level_stop = BEGV;
- handle_stop_backwards (it, it->base_level_stop);
+ {
+ /* If we lost track of base_level_stop, we need to find
+ prev_stop by looking backwards. This happens, e.g., when
+ we were reseated to the previous screenful of text by
+ vertical-motion. */
+ it->base_level_stop = BEGV;
+ compute_stop_pos_backwards (it);
+ handle_stop_backwards (it, it->prev_stop);
+ }
+ else
+ handle_stop_backwards (it, it->base_level_stop);
return GET_NEXT_DISPLAY_ELEMENT (it);
}
else
{
enum move_it_result result = MOVE_UNDEFINED;
struct glyph_row *saved_glyph_row;
- struct it wrap_it, atpos_it, atx_it;
+ struct it wrap_it, atpos_it, atx_it, ppos_it;
void *wrap_data = NULL, *atpos_data = NULL, *atx_data = NULL;
+ void *ppos_data = NULL;
int may_wrap = 0;
enum it_method prev_method = it->method;
EMACS_INT prev_pos = IT_CHARPOS (*it);
atpos_it.sp = -1;
atx_it.sp = -1;
+ /* Use ppos_it under bidi reordering to save a copy of IT for the
+ position > CHARPOS that is the closest to CHARPOS. We restore
+ that position in IT when we have scanned the entire display line
+ without finding a match for CHARPOS and all the character
+ positions are greater than CHARPOS. */
+ if (it->bidi_p)
+ {
+ SAVE_IT (ppos_it, *it, ppos_data);
+ SET_TEXT_POS (ppos_it.current.pos, ZV, ZV_BYTE);
+ if ((op & MOVE_TO_POS) && IT_CHARPOS (*it) >= to_charpos)
+ SAVE_IT (ppos_it, *it, ppos_data);
+ }
+
#define BUFFER_POS_REACHED_P() \
((op & MOVE_TO_POS) != 0 \
&& BUFFERP (it->object) \
&& (IT_CHARPOS (*it) == to_charpos \
- || (!it->bidi_p && IT_CHARPOS (*it) > to_charpos)) \
+ || (!it->bidi_p && IT_CHARPOS (*it) > to_charpos) \
+ || (it->what == IT_COMPOSITION \
+ && ((IT_CHARPOS (*it) > to_charpos \
+ && to_charpos >= it->cmp_it.charpos) \
+ || (IT_CHARPOS (*it) < to_charpos \
+ && to_charpos <= it->cmp_it.charpos)))) \
&& (it->method == GET_FROM_BUFFER \
|| (it->method == GET_FROM_DISPLAY_VECTOR \
&& it->dpvec + it->current.dpvec_index + 1 >= it->dpend)))
if (IT_CHARPOS (*it) < CHARPOS (this_line_min_pos))
SET_TEXT_POS (this_line_min_pos,
IT_CHARPOS (*it), IT_BYTEPOS (*it));
+ if (it->bidi_p
+ && (op & MOVE_TO_POS)
+ && IT_CHARPOS (*it) > to_charpos
+ && IT_CHARPOS (*it) < IT_CHARPOS (ppos_it))
+ SAVE_IT (ppos_it, *it, ppos_data);
continue;
}
positions smaller than TO_CHARPOS, return
MOVE_POS_MATCH_OR_ZV, like the unidirectional display
did. */
- if ((op & MOVE_TO_POS) != 0
- && !saw_smaller_pos
- && IT_CHARPOS (*it) > to_charpos)
- result = MOVE_POS_MATCH_OR_ZV;
+ if (it->bidi_p && (op & MOVE_TO_POS) != 0)
+ {
+ if (!saw_smaller_pos && IT_CHARPOS (*it) > to_charpos)
+ {
+ if (IT_CHARPOS (ppos_it) < ZV)
+ {
+ RESTORE_IT (it, &ppos_it, ppos_data);
+ result = MOVE_POS_MATCH_OR_ZV;
+ }
+ else
+ goto buffer_pos_reached;
+ }
+ else if (it->line_wrap == WORD_WRAP && atpos_it.sp >= 0
+ && IT_CHARPOS (*it) > to_charpos)
+ goto buffer_pos_reached;
+ else
+ result = MOVE_NEWLINE_OR_CR;
+ }
else
result = MOVE_NEWLINE_OR_CR;
break;
SET_TEXT_POS (this_line_min_pos, IT_CHARPOS (*it), IT_BYTEPOS (*it));
if (IT_CHARPOS (*it) < to_charpos)
saw_smaller_pos = 1;
+ if (it->bidi_p
+ && (op & MOVE_TO_POS)
+ && IT_CHARPOS (*it) >= to_charpos
+ && IT_CHARPOS (*it) < IT_CHARPOS (ppos_it))
+ SAVE_IT (ppos_it, *it, ppos_data);
/* Stop if lines are truncated and IT's current x-position is
past the right edge of the window now. */
if (!FRAME_WINDOW_P (it->f)
|| IT_OVERFLOW_NEWLINE_INTO_FRINGE (it))
{
- if (!get_next_display_element (it)
+ int at_eob_p = 0;
+
+ if ((at_eob_p = !get_next_display_element (it))
|| BUFFER_POS_REACHED_P ()
/* If we are past TO_CHARPOS, but never saw any
character positions smaller than TO_CHARPOS,
return MOVE_POS_MATCH_OR_ZV, like the
unidirectional display did. */
- || ((op & MOVE_TO_POS) != 0
+ || (it->bidi_p && (op & MOVE_TO_POS) != 0
&& !saw_smaller_pos
&& IT_CHARPOS (*it) > to_charpos))
{
+ if (it->bidi_p
+ && !at_eob_p && IT_CHARPOS (ppos_it) < ZV)
+ RESTORE_IT (it, &ppos_it, ppos_data);
result = MOVE_POS_MATCH_OR_ZV;
break;
}
break;
}
}
- else if ((op & MOVE_TO_POS) != 0
+ else if (it->bidi_p && (op & MOVE_TO_POS) != 0
&& !saw_smaller_pos
&& IT_CHARPOS (*it) > to_charpos)
{
+ if (IT_CHARPOS (ppos_it) < ZV)
+ RESTORE_IT (it, &ppos_it, ppos_data);
result = MOVE_POS_MATCH_OR_ZV;
break;
}
done:
if (atpos_data)
- xfree (atpos_data);
+ bidi_unshelve_cache (atpos_data, 1);
if (atx_data)
- xfree (atx_data);
+ bidi_unshelve_cache (atx_data, 1);
if (wrap_data)
- xfree (wrap_data);
+ bidi_unshelve_cache (wrap_data, 1);
+ if (ppos_data)
+ bidi_unshelve_cache (ppos_data, 1);
/* Restore the iterator settings altered at the beginning of this
function. */
(it, -1, prev_x, MOVE_TO_X);
}
else
- xfree (save_data);
+ bidi_unshelve_cache (save_data, 1);
}
else
move_it_in_display_line_to (it, to_charpos, to_x, op);
else if (BUFFERP (it->object)
&& (it->method == GET_FROM_BUFFER
|| it->method == GET_FROM_STRETCH)
- && IT_CHARPOS (*it) >= to_charpos)
+ && IT_CHARPOS (*it) >= to_charpos
+ /* Under bidi iteration, a call to set_iterator_to_next
+ can scan far beyond to_charpos if the initial
+ portion of the next line needs to be reordered. In
+ that case, give move_it_in_display_line_to another
+ chance below. */
+ && !(it->bidi_p
+ && it->bidi_it.scan_dir == -1))
skip = MOVE_POS_MATCH_OR_ZV;
else
skip = move_it_in_display_line_to (it, to_charpos, -1, MOVE_TO_POS);
}
if (backup_data)
- xfree (backup_data);
+ bidi_unshelve_cache (backup_data, 1);
TRACE_MOVE ((stderr, "move_it_to: reached %d\n", reached));
}
reseat_1 (it, it->current.pos, 1);
/* We are now surely at a line start. */
- it->current_x = it->hpos = 0;
+ it->current_x = it->hpos = 0; /* FIXME: this is incorrect when bidi
+ reordering is in effect. */
it->continuation_lines_width = 0;
/* Move forward and see what y-distance we moved. First move to the
if (dy == 0)
{
/* DY == 0 means move to the start of the screen line. The
- value of nlines is > 0 if continuation lines were involved. */
+ value of nlines is > 0 if continuation lines were involved,
+ or if the original IT position was at start of a line. */
RESTORE_IT (it, it, it2data);
if (nlines > 0)
move_it_by_lines (it, nlines);
- xfree (it3data);
+ /* The above code moves us to some position NLINES down,
+ usually to its first glyph (leftmost in an L2R line), but
+ that's not necessarily the start of the line, under bidi
+ reordering. We want to get to the character position
+ that is immediately after the newline of the previous
+ line. */
+ if (it->bidi_p && IT_CHARPOS (*it) > BEGV
+ && FETCH_BYTE (IT_BYTEPOS (*it) - 1) != '\n')
+ {
+ EMACS_INT nl_pos =
+ find_next_newline_no_quit (IT_CHARPOS (*it) - 1, -1);
+
+ move_it_to (it, nl_pos, -1, -1, -1, MOVE_TO_POS);
+ }
+ bidi_unshelve_cache (it3data, 1);
}
else
{
if (IT_CHARPOS (*it) >= start_charpos)
RESTORE_IT (it, &it2, it2data);
else
- xfree (it2data);
+ bidi_unshelve_cache (it2data, 1);
}
else
RESTORE_IT (it, it, it2data);
store_mode_line_noprop_char (char c)
{
/* If output position has reached the end of the allocated buffer,
- double the buffer's size. */
+ increase the buffer's size. */
if (mode_line_noprop_ptr == mode_line_noprop_buf_end)
{
- int len = MODE_LINE_NOPROP_LEN (0);
- int new_size = 2 * len * sizeof *mode_line_noprop_buf;
- mode_line_noprop_buf = (char *) xrealloc (mode_line_noprop_buf, new_size);
- mode_line_noprop_buf_end = mode_line_noprop_buf + new_size;
+ ptrdiff_t len = MODE_LINE_NOPROP_LEN (0);
+ ptrdiff_t size = len;
+ mode_line_noprop_buf =
+ xpalloc (mode_line_noprop_buf, &size, 1, STRING_BYTES_BOUND, 1);
+ mode_line_noprop_buf_end = mode_line_noprop_buf + size;
mode_line_noprop_ptr = mode_line_noprop_buf + len;
}
/* Do we have more than one visible frame on this X display? */
Lisp_Object tail;
Lisp_Object fmt;
- int title_start;
+ ptrdiff_t title_start;
char *title;
- int len;
+ ptrdiff_t len;
struct it it;
int count = SPECPDL_INDEX ();
/* Last buffer position covered by an overlay string with an integer
`cursor' property. */
EMACS_INT bpos_covered = 0;
+ /* Non-zero means the display string on which to display the cursor
+ comes from a text property, not from an overlay. */
+ int string_from_text_prop = 0;
/* Skip over glyphs not having an object at the start and the end of
the row. These are special glyphs like truncation marks on
{
Lisp_Object str;
EMACS_INT tem;
+ /* If the display property covers the newline, we
+ need to search for it one position farther. */
+ EMACS_INT lim = pos_after
+ + (pos_after == MATRIX_ROW_END_CHARPOS (row) + delta);
+ string_from_text_prop = 0;
str = glyph->object;
- tem = string_buffer_position_lim (str, pos, pos_after, 0);
+ tem = string_buffer_position_lim (str, pos, lim, 0);
if (tem == 0 /* from overlay */
|| pos <= tem)
{
EMACS_INT strpos = glyph->charpos;
if (tem)
- cursor = glyph;
+ {
+ cursor = glyph;
+ string_from_text_prop = 1;
+ }
for ( ;
(row->reversed_p ? glyph > stop : glyph < stop)
&& EQ (glyph->object, str);
w->cursor.vpos >= 0
/* that candidate is not the row we are processing */
&& MATRIX_ROW (matrix, w->cursor.vpos) != row
- /* the row we are processing is part of a continued line */
- && (row->continued_p || MATRIX_ROW_CONTINUATION_LINE_P (row))
/* Make sure cursor.vpos specifies a row whose start and end
- charpos occlude point. This is because some callers of this
- function leave cursor.vpos at the row where the cursor was
- displayed during the last redisplay cycle. */
+ charpos occlude point, and it is valid candidate for being a
+ cursor-row. This is because some callers of this function
+ leave cursor.vpos at the row where the cursor was displayed
+ during the last redisplay cycle. */
&& MATRIX_ROW_START_CHARPOS (MATRIX_ROW (matrix, w->cursor.vpos)) <= pt_old
- && pt_old < MATRIX_ROW_END_CHARPOS (MATRIX_ROW (matrix, w->cursor.vpos)))
+ && pt_old <= MATRIX_ROW_END_CHARPOS (MATRIX_ROW (matrix, w->cursor.vpos))
+ && cursor_row_p (MATRIX_ROW (matrix, w->cursor.vpos)))
{
struct glyph *g1 =
MATRIX_ROW_GLYPH_START (matrix, w->cursor.vpos) + w->cursor.hpos;
if (!(row->reversed_p ? glyph > glyphs_end : glyph < glyphs_end))
return 0;
/* Keep the candidate whose buffer position is the closest to
- point. */
+ point or has the `cursor' property. */
if (/* previous candidate is a glyph in TEXT_AREA of that row */
w->cursor.hpos >= 0
&& w->cursor.hpos < MATRIX_ROW_USED (matrix, w->cursor.vpos)
- && BUFFERP (g1->object)
- && (g1->charpos == pt_old /* an exact match always wins */
- || (BUFFERP (glyph->object)
- && eabs (g1->charpos - pt_old)
- < eabs (glyph->charpos - pt_old))))
+ && ((BUFFERP (g1->object)
+ && (g1->charpos == pt_old /* an exact match always wins */
+ || (BUFFERP (glyph->object)
+ && eabs (g1->charpos - pt_old)
+ < eabs (glyph->charpos - pt_old))))
+ /* previous candidate is a glyph from a string that has
+ a non-nil `cursor' property */
+ || (STRINGP (g1->object)
+ && (!NILP (Fget_char_property (make_number (g1->charpos),
+ Qcursor, g1->object))
+ /* pevious candidate is from the same display
+ string as this one, and the display string
+ came from a text property */
+ || (EQ (g1->object, glyph->object)
+ && string_from_text_prop)
+ /* this candidate is from newline and its
+ position is not an exact match */
+ || (INTEGERP (glyph->object)
+ && glyph->charpos != pt_old)))))
return 0;
/* If this candidate gives an exact match, use that. */
- if (!(BUFFERP (glyph->object) && glyph->charpos == pt_old)
+ if (!((BUFFERP (glyph->object) && glyph->charpos == pt_old)
+ /* If this candidate is a glyph created for the
+ terminating newline of a line, and point is on that
+ newline, it wins because it's an exact match. */
+ || (!row->continued_p
+ && INTEGERP (glyph->object)
+ && glyph->charpos == 0
+ && pt_old == MATRIX_ROW_END_CHARPOS (row) - 1))
/* Otherwise, keep the candidate that comes from a row
spanning less buffer positions. This may win when one or
both candidate positions are on glyphs that came from
do
{
+ int at_zv_p = 0, exact_match_p = 0;
+
if (MATRIX_ROW_START_CHARPOS (row) <= PT
&& PT <= MATRIX_ROW_END_CHARPOS (row)
&& cursor_row_p (row))
rv |= set_cursor_from_row (w, row, w->current_matrix,
0, 0, 0, 0);
- /* As soon as we've found the first suitable row
- whose ends_at_zv_p flag is set, we are done. */
- if (rv
- && MATRIX_ROW (w->current_matrix, w->cursor.vpos)->ends_at_zv_p)
+ /* As soon as we've found the exact match for point,
+ or the first suitable row whose ends_at_zv_p flag
+ is set, we are done. */
+ at_zv_p =
+ MATRIX_ROW (w->current_matrix, w->cursor.vpos)->ends_at_zv_p;
+ if (!at_zv_p)
+ {
+ struct glyph_row *candidate =
+ MATRIX_ROW (w->current_matrix, w->cursor.vpos);
+ struct glyph *g =
+ candidate->glyphs[TEXT_AREA] + w->cursor.hpos;
+ EMACS_INT endpos = MATRIX_ROW_END_CHARPOS (candidate);
+
+ exact_match_p =
+ (BUFFERP (g->object) && g->charpos == PT)
+ || (INTEGERP (g->object)
+ && (g->charpos == PT
+ || (g->charpos == 0 && endpos - 1 == PT)));
+ }
+ if (rv && (at_zv_p || exact_match_p))
{
rc = CURSOR_MOVEMENT_SUCCESS;
break;
}
+ if (MATRIX_ROW_BOTTOM_Y (row) == last_y)
+ break;
++row;
}
- while ((MATRIX_ROW_CONTINUATION_LINE_P (row)
+ while (((MATRIX_ROW_CONTINUATION_LINE_P (row)
+ || row->continued_p)
&& MATRIX_ROW_BOTTOM_Y (row) <= last_y)
|| (MATRIX_ROW_START_CHARPOS (row) == PT
&& MATRIX_ROW_BOTTOM_Y (row) < last_y));
loop before all the candidates were examined, signal
to the caller that this method failed. */
if (rc != CURSOR_MOVEMENT_SUCCESS
- && (!rv || MATRIX_ROW_CONTINUATION_LINE_P (row)))
+ && !(rv
+ && !MATRIX_ROW_CONTINUATION_LINE_P (row)
+ && !row->continued_p))
rc = CURSOR_MOVEMENT_MUST_SCROLL;
else if (rv)
rc = CURSOR_MOVEMENT_SUCCESS;
|| (XFASTINT (w->last_modified) >= MODIFF
&& XFASTINT (w->last_overlay_modified) >= OVERLAY_MODIFF)))
{
+ int d1, d2, d3, d4, d5, d6;
/* If first window line is a continuation line, and window start
is inside the modified region, but the first change is before
compute_window_start_on_continuation_line. (See also
bug#197). */
&& XMARKER (w->start)->buffer == current_buffer
- && compute_window_start_on_continuation_line (w))
+ && compute_window_start_on_continuation_line (w)
+ /* It doesn't make sense to force the window start like we
+ do at label force_start if it is already known that point
+ will not be visible in the resulting window, because
+ doing so will move point from its correct position
+ instead of scrolling the window to bring point into view.
+ See bug#9324. */
+ && pos_visible_p (w, PT, &d1, &d2, &d3, &d4, &d5, &d6))
{
w->force_start = Qt;
SET_TEXT_POS_FROM_MARKER (startp, w->start);
if (pt_offset)
centering_position -= pt_offset;
centering_position -=
- FRAME_LINE_HEIGHT (f) * (1 + margin + (last_line_misfit != 0));
+ FRAME_LINE_HEIGHT (f) * (1 + margin + (last_line_misfit != 0))
+ + WINDOW_HEADER_LINE_HEIGHT (w);
/* Don't let point enter the scroll margin near top of
the window. */
if (centering_position < margin * FRAME_LINE_HEIGHT (f))
{
int this_scroll_margin, cursor_height;
- this_scroll_margin = max (0, scroll_margin);
- this_scroll_margin = min (this_scroll_margin, WINDOW_TOTAL_LINES (w) / 4);
+ this_scroll_margin =
+ max (0, min (scroll_margin, WINDOW_TOTAL_LINES (w) / 4));
this_scroll_margin *= FRAME_LINE_HEIGHT (it.f);
cursor_height = MATRIX_ROW (w->desired_matrix, w->cursor.vpos)->height;
{
int result = 1;
- if (PT == CHARPOS (row->end.pos))
+ if (PT == CHARPOS (row->end.pos)
+ || PT == MATRIX_ROW_END_CHARPOS (row))
{
/* Suppose the row ends on a string.
Unless the row is continued, that means it ends on a newline
\f
-/* Push the display property PROP so that it will be rendered at the
- current position in IT. Return 1 if PROP was successfully pushed,
- 0 otherwise. */
+/* Push the property PROP so that it will be rendered at the current
+ position in IT. Return 1 if PROP was successfully pushed, 0
+ otherwise. Called from handle_line_prefix to handle the
+ `line-prefix' and `wrap-prefix' properties. */
static int
push_display_prop (struct it *it, Lisp_Object prop)
{
- xassert (it->method == GET_FROM_BUFFER);
+ struct text_pos pos =
+ (it->method == GET_FROM_STRING) ? it->current.string_pos : it->current.pos;
+
+ xassert (it->method == GET_FROM_BUFFER
+ || it->method == GET_FROM_STRING);
- push_it (it, NULL);
+ /* We need to save the current buffer/string position, so it will be
+ restored by pop_it, because iterate_out_of_display_property
+ depends on that being set correctly, but some situations leave
+ it->position not yet set when this function is called. */
+ push_it (it, &pos);
if (STRINGP (prop))
{
it->stop_charpos = 0;
it->prev_stop = 0;
it->base_level_stop = 0;
- it->string_from_display_prop_p = 1;
- it->from_disp_prop_p = 1;
/* Force paragraph direction to be that of the parent
- buffer. */
+ buffer/string. */
if (it->bidi_p && it->bidi_it.paragraph_dir == R2L)
it->paragraph_embedding = it->bidi_it.paragraph_dir;
else
it->bidi_it.string.s = NULL;
it->bidi_it.string.schars = it->end_charpos;
it->bidi_it.string.bufpos = IT_CHARPOS (*it);
- it->bidi_it.string.from_disp_str = 1;
+ it->bidi_it.string.from_disp_str = it->string_from_display_prop_p;
it->bidi_it.string.unibyte = !it->multibyte_p;
bidi_init_it (0, 0, FRAME_WINDOW_P (it->f), &it->bidi_it);
}
#define RECORD_MAX_MIN_POS(IT) \
do \
{ \
- if (IT_CHARPOS (*(IT)) < min_pos) \
+ int composition_p = (IT)->what == IT_COMPOSITION; \
+ EMACS_INT current_pos = \
+ composition_p ? (IT)->cmp_it.charpos \
+ : IT_CHARPOS (*(IT)); \
+ EMACS_INT current_bpos = \
+ composition_p ? CHAR_TO_BYTE (current_pos) \
+ : IT_BYTEPOS (*(IT)); \
+ if (current_pos < min_pos) \
{ \
- min_pos = IT_CHARPOS (*(IT)); \
- min_bpos = IT_BYTEPOS (*(IT)); \
+ min_pos = current_pos; \
+ min_bpos = current_bpos; \
} \
- if (IT_CHARPOS (*(IT)) > max_pos) \
+ if (IT_CHARPOS (*it) > max_pos) \
{ \
- max_pos = IT_CHARPOS (*(IT)); \
- max_bpos = IT_BYTEPOS (*(IT)); \
+ max_pos = IT_CHARPOS (*it); \
+ max_bpos = IT_BYTEPOS (*it); \
} \
} \
while (0)
}
}
+ if (wrap_data)
+ bidi_unshelve_cache (wrap_data, 1);
+
/* If line is not empty and hscrolled, maybe insert truncation glyphs
at the left window margin. */
if (it->first_visible_x
buf = XBUFFER (buffer);
}
- if (NILP (BVAR (buf, bidi_display_reordering)))
+ if (NILP (BVAR (buf, bidi_display_reordering))
+ || NILP (BVAR (buf, enable_multibyte_characters)))
return Qleft_to_right;
else if (!NILP (BVAR (buf, bidi_paragraph_direction)))
return BVAR (buf, bidi_paragraph_direction);
do { \
int face_id = (row)->glyphs[area][START].face_id; \
struct face *base_face = FACE_FROM_ID (f, face_id); \
- int cmp_id = (row)->glyphs[area][START].u.cmp.id; \
+ ptrdiff_t cmp_id = (row)->glyphs[area][START].u.cmp.id; \
struct composition *cmp = composition_table[cmp_id]; \
XChar2b *char2b; \
struct glyph_string *first_s IF_LINT (= NULL); \
IT_EXPAND_MATRIX_WIDTH (it, area);
}
+#endif /* HAVE_WINDOW_SYSTEM */
/* Produce a stretch glyph for iterator IT. IT->object is the value
of the glyph property displayed. The value must be a list
of the stretch should be used for the ascent of the stretch.
ASCENT must be in the range 0 <= ASCENT <= 100. */
-static void
+void
produce_stretch_glyph (struct it *it)
{
/* (space :width WIDTH :height HEIGHT ...) */
Lisp_Object prop, plist;
int width = 0, height = 0, align_to = -1;
- int zero_width_ok_p = 0, zero_height_ok_p = 0;
+ int zero_width_ok_p = 0;
int ascent = 0;
double tem;
- struct face *face = FACE_FROM_ID (it->f, it->face_id);
- struct font *font = face->font ? face->font : FRAME_FONT (it->f);
+ struct face *face = NULL;
+ struct font *font = NULL;
- PREPARE_FACE_FOR_DISPLAY (it->f, face);
+#ifdef HAVE_WINDOW_SYSTEM
+ int zero_height_ok_p = 0;
+
+ if (FRAME_WINDOW_P (it->f))
+ {
+ face = FACE_FROM_ID (it->f, it->face_id);
+ font = face->font ? face->font : FRAME_FONT (it->f);
+ PREPARE_FACE_FOR_DISPLAY (it->f, face);
+ }
+#endif
/* List should start with `space'. */
xassert (CONSP (it->object) && EQ (XCAR (it->object), Qspace));
zero_width_ok_p = 1;
width = (int)tem;
}
- else if (prop = Fplist_get (plist, QCrelative_width),
- NUMVAL (prop) > 0)
+#ifdef HAVE_WINDOW_SYSTEM
+ else if (FRAME_WINDOW_P (it->f)
+ && (prop = Fplist_get (plist, QCrelative_width), NUMVAL (prop) > 0))
{
/* Relative width `:relative-width FACTOR' specified and valid.
Compute the width of the characters having the `glyph'
x_produce_glyphs (&it2);
width = NUMVAL (prop) * it2.pixel_width;
}
+#endif /* HAVE_WINDOW_SYSTEM */
else if ((prop = Fplist_get (plist, QCalign_to), !NILP (prop))
&& calc_pixel_width_or_height (&tem, it, prop, font, 1, &align_to))
{
if (width <= 0 && (width < 0 || !zero_width_ok_p))
width = 1;
+#ifdef HAVE_WINDOW_SYSTEM
/* Compute height. */
- if ((prop = Fplist_get (plist, QCheight), !NILP (prop))
- && calc_pixel_width_or_height (&tem, it, prop, font, 0, 0))
+ if (FRAME_WINDOW_P (it->f))
{
- height = (int)tem;
- zero_height_ok_p = 1;
- }
- else if (prop = Fplist_get (plist, QCrelative_height),
- NUMVAL (prop) > 0)
- height = FONT_HEIGHT (font) * NUMVAL (prop);
- else
- height = FONT_HEIGHT (font);
+ if ((prop = Fplist_get (plist, QCheight), !NILP (prop))
+ && calc_pixel_width_or_height (&tem, it, prop, font, 0, 0))
+ {
+ height = (int)tem;
+ zero_height_ok_p = 1;
+ }
+ else if (prop = Fplist_get (plist, QCrelative_height),
+ NUMVAL (prop) > 0)
+ height = FONT_HEIGHT (font) * NUMVAL (prop);
+ else
+ height = FONT_HEIGHT (font);
- if (height <= 0 && (height < 0 || !zero_height_ok_p))
- height = 1;
+ if (height <= 0 && (height < 0 || !zero_height_ok_p))
+ height = 1;
- /* Compute percentage of height used for ascent. If
- `:ascent ASCENT' is present and valid, use that. Otherwise,
- derive the ascent from the font in use. */
- if (prop = Fplist_get (plist, QCascent),
- NUMVAL (prop) > 0 && NUMVAL (prop) <= 100)
- ascent = height * NUMVAL (prop) / 100.0;
- else if (!NILP (prop)
- && calc_pixel_width_or_height (&tem, it, prop, font, 0, 0))
- ascent = min (max (0, (int)tem), height);
+ /* Compute percentage of height used for ascent. If
+ `:ascent ASCENT' is present and valid, use that. Otherwise,
+ derive the ascent from the font in use. */
+ if (prop = Fplist_get (plist, QCascent),
+ NUMVAL (prop) > 0 && NUMVAL (prop) <= 100)
+ ascent = height * NUMVAL (prop) / 100.0;
+ else if (!NILP (prop)
+ && calc_pixel_width_or_height (&tem, it, prop, font, 0, 0))
+ ascent = min (max (0, (int)tem), height);
+ else
+ ascent = (height * FONT_BASE (font)) / FONT_HEIGHT (font);
+ }
else
- ascent = (height * FONT_BASE (font)) / FONT_HEIGHT (font);
+#endif /* HAVE_WINDOW_SYSTEM */
+ height = 1;
if (width > 0 && it->line_wrap != TRUNCATE
&& it->current_x + width > it->last_visible_x)
if (width > 0 && height > 0 && it->glyph_row)
{
+ Lisp_Object o_object = it->object;
Lisp_Object object = it->stack[it->sp - 1].string;
+ int n = width;
+
if (!STRINGP (object))
object = it->w->buffer;
- append_stretch_glyph (it, object, width, height, ascent);
+#ifdef HAVE_WINDOW_SYSTEM
+ if (FRAME_WINDOW_P (it->f))
+ {
+ append_stretch_glyph (it, object, width, height, ascent);
+ it->ascent = it->phys_ascent = ascent;
+ it->descent = it->phys_descent = height - it->ascent;
+ it->nglyphs = width > 0 && height > 0 ? 1 : 0;
+ take_vertical_position_into_account (it);
+ }
+ else
+#endif
+ {
+ it->object = object;
+ it->char_to_display = ' ';
+ it->pixel_width = it->len = 1;
+ while (n--)
+ tty_append_glyph (it);
+ it->object = o_object;
+ it->pixel_width = width;
+ }
}
-
- it->pixel_width = width;
- it->ascent = it->phys_ascent = ascent;
- it->descent = it->phys_descent = height - it->ascent;
- it->nglyphs = width > 0 && height > 0 ? 1 : 0;
-
- take_vertical_position_into_account (it);
}
+#ifdef HAVE_WINDOW_SYSTEM
+
/* Calculate line-height and line-spacing properties.
An integer value specifies explicit pixel value.
A float value specifies relative value to current face height.
base_width = font->average_width;
/* Get a face ID for the glyph by utilizing a cache (the same way as
- doen for `escape-glyph' in get_next_display_element). */
+ done for `escape-glyph' in get_next_display_element). */
if (it->f == last_glyphless_glyph_frame
&& it->face_id == last_glyphless_glyph_face_id)
{
Lisp_Object gstring;
struct font_metrics metrics;
+ it->nglyphs = 1;
+
gstring = composition_gstring_from_id (it->cmp_it.id);
it->pixel_width
= composition_gstring_width (gstring, it->cmp_it.from, it->cmp_it.to,
while (g < e)
{
- if (BUFFERP (g->object)
+ if ((BUFFERP (g->object) || INTEGERP (g->object))
&& start_charpos <= g->charpos && g->charpos < end_charpos)
*start = row;
g++;
while (g < e)
{
- if (BUFFERP (g->object)
+ if ((BUFFERP (g->object) || INTEGERP (g->object))
&& start_charpos <= g->charpos && g->charpos < end_charpos)
break;
g++;
HCoop / bpt / emacs.git / blobdiff