else if (INTEGERP (w->redisplay_end_trigger))
it->redisplay_end_trigger_charpos = XINT (w->redisplay_end_trigger);
- /* Correct bogus values of tab_width. */
- it->tab_width = XINT (BVAR (current_buffer, tab_width));
- if (it->tab_width <= 0 || it->tab_width > 1000)
- it->tab_width = 8;
+ it->tab_width = SANE_TAB_WIDTH (current_buffer);
/* Are lines in the display truncated? */
if (base_face_id != DEFAULT_FACE_ID
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, int *disp_prop_p)
+ int frame_window_p, int *disp_prop)
{
/* OBJECT = nil means current buffer. */
Lisp_Object object =
EMACS_INT lim =
(charpos < eob - MAX_DISP_SCAN) ? charpos + MAX_DISP_SCAN : eob;
struct text_pos tpos;
+ int rv = 0;
- *disp_prop_p = 1;
+ *disp_prop = 1;
if (charpos >= eob
/* We don't support display properties whose values are strings
/* C strings cannot have display properties. */
|| (string->s && !STRINGP (object)))
{
- *disp_prop_p = 0;
+ *disp_prop = 0;
return eob;
}
|| !EQ (Fget_char_property (make_number (charpos - 1), Qdisplay,
object),
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;
}
CHARPOS (tpos) = XFASTINT (pos);
if (CHARPOS (tpos) >= lim)
{
- *disp_prop_p = 0;
+ *disp_prop = 0;
break;
}
if (STRINGP (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
if (it->bidi_it.disp_pos < limit)
{
it->bidi_it.disp_pos = limit;
- it->bidi_it.disp_prop_p = 0;
+ it->bidi_it.disp_prop = 0;
}
do {
bprev = it->bidi_it;
((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)))
&& !saw_smaller_pos
&& IT_CHARPOS (*it) > to_charpos))
{
- if (!at_eob_p && IT_CHARPOS (ppos_it) < ZV)
+ 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;
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);
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);
+ /* 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
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 ();
&& 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
min_pos = current_pos; \
min_bpos = current_bpos; \
} \
- if (current_pos > max_pos) \
+ if (IT_CHARPOS (*it) > max_pos) \
{ \
- max_pos = current_pos; \
- max_bpos = current_bpos; \
+ max_pos = IT_CHARPOS (*it); \
+ max_bpos = IT_BYTEPOS (*it); \
} \
} \
while (0)
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);
if (FRAME_WINDOW_P (it->f)
&& valid_image_p (prop))
{
- int id = lookup_image (it->f, prop);
+ ptrdiff_t id = lookup_image (it->f, prop);
struct image *img = IMAGE_FROM_ID (it->f, id);
return OK_PIXELS (width_p ? img->width : img->height);
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.
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,
HCoop / bpt / emacs.git / blobdiff