/* Display generation from window structure and buffer text.
Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995,
1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ Free Software Foundation, Inc.
This file is part of GNU Emacs.
extern int minibuffer_auto_raise;
extern Lisp_Object Vminibuffer_list;
-extern Lisp_Object Qface;
+extern Lisp_Object Qface, Qdefault;
extern Lisp_Object Qmode_line, Qmode_line_inactive, Qheader_line;
extern Lisp_Object Voverriding_local_map;
static int display_mode_line P_ ((struct window *, enum face_id, Lisp_Object));
static int display_mode_element P_ ((struct it *, int, int, int, Lisp_Object, Lisp_Object, int));
static int store_mode_line_string P_ ((char *, Lisp_Object, int, int, int, Lisp_Object));
-static char *decode_mode_spec P_ ((struct window *, int, int, int, int *));
+static char *decode_mode_spec P_ ((struct window *, int, int, int,
+ Lisp_Object *));
static void display_menu_bar P_ ((struct window *));
static int display_count_lines P_ ((int, int, int, int, int *));
static int display_string P_ ((unsigned char *, Lisp_Object, Lisp_Object,
int top_x = it.current_x;
int top_y = it.current_y;
enum it_method it_method = it.method;
- /* Calling line_bottom_y may change it.method. */
+ /* Calling line_bottom_y may change it.method, it.position, etc. */
int bottom_y = (last_height = 0, line_bottom_y (&it));
int window_top_y = WINDOW_HEADER_LINE_HEIGHT (w);
visible_p = 1;
if (visible_p)
{
- if (it_method == GET_FROM_BUFFER)
- {
- Lisp_Object window, prop;
-
- XSETWINDOW (window, w);
- prop = Fget_char_property (make_number (it.position.charpos),
- Qinvisible, window);
-
- /* If charpos coincides with invisible text covered with an
- ellipsis, use the first glyph of the ellipsis to compute
- the pixel positions. */
- if (TEXT_PROP_MEANS_INVISIBLE (prop) == 2)
- {
- struct glyph_row *row = it.glyph_row;
- struct glyph *glyph = row->glyphs[TEXT_AREA];
- struct glyph *end = glyph + row->used[TEXT_AREA];
- int x = row->x;
-
- for (; glyph < end
- && (!BUFFERP (glyph->object)
- || glyph->charpos < charpos);
- glyph++)
- x += glyph->pixel_width;
- top_x = x;
- }
- }
- else if (it_method == GET_FROM_DISPLAY_VECTOR)
+ if (it_method == GET_FROM_DISPLAY_VECTOR)
{
/* We stopped on the last glyph of a display vector.
Try and recompute. Hack alert! */
}
-/* Return the next character from STR which is MAXLEN bytes long.
- Return in *LEN the length of the character. This is like
- STRING_CHAR_AND_LENGTH but never returns an invalid character. If
- we find one, we return a `?', but with the length of the invalid
- character. */
+/* Return the next character from STR. Return in *LEN the length of
+ the character. This is like STRING_CHAR_AND_LENGTH but never
+ returns an invalid character. If we find one, we return a `?', but
+ with the length of the invalid character. */
static INLINE int
string_char_and_length (str, len)
if (STRING_MULTIBYTE (string))
{
- int rest = SBYTES (string) - BYTEPOS (pos);
const unsigned char *p = SDATA (string) + BYTEPOS (pos);
int len;
while (nchars--)
{
string_char_and_length (p, &len);
- p += len, rest -= len;
- xassert (rest >= 0);
+ p += len;
CHARPOS (pos) += 1;
BYTEPOS (pos) += len;
}
if (multibyte_p)
{
- int rest = strlen (s), len;
+ int len;
SET_TEXT_POS (pos, 0, 0);
while (charpos--)
{
string_char_and_length (s, &len);
- s += len, rest -= len;
- xassert (rest >= 0);
+ s += len;
CHARPOS (pos) += 1;
BYTEPOS (pos) += len;
}
r.y = WINDOW_HEADER_LINE_HEIGHT (s->w);
else
r.y = max (0, s->row->y);
-
- /* If drawing a tool-bar window, draw it over the internal border
- at the top of the window. */
- if (WINDOWP (s->f->tool_bar_window)
- && s->w == XWINDOW (s->f->tool_bar_window))
- r.y -= FRAME_INTERNAL_BORDER_WIDTH (s->f);
}
r.y = WINDOW_TO_FRAME_PIXEL_Y (s->w, r.y);
val = Vfontification_functions;
specbind (Qfontification_functions, Qnil);
+ xassert (it->end_charpos == ZV);
+
if (!CONSP (val) || EQ (XCAR (val), Qlambda))
safe_call1 (val, pos);
else
unbind_to (count, Qnil);
+ /* The fontification code may have added/removed text.
+ It could do even a lot worse, but let's at least protect against
+ the most obvious case where only the text past `pos' gets changed',
+ as is/was done in grep.el where some escapes sequences are turned
+ into face properties (bug#7876). */
+ it->end_charpos = ZV;
+
/* Return HANDLED_RECOMPUTE_PROPS only if function fontified
something. This avoids an endless loop if they failed to
fontify the text for which reason ever. */
if (STRING_MULTIBYTE (it->string))
{
const unsigned char *p = SDATA (it->string) + BYTEPOS (pos);
- int rest = SBYTES (it->string) - BYTEPOS (pos);
int c, len;
struct face *face = FACE_FROM_ID (it->f, face_id);
{
struct Lisp_Vector *v = XVECTOR (DISP_INVIS_VECTOR (it->dp));
it->dpvec = v->contents;
- it->dpend = v->contents + v->size;
+ it->dpend = v->contents + v->header.size;
}
else
{
&& COMPOSITION_VALID_P (start, end, prop)
&& (STRINGP (it->string) || (PT <= start || PT >= end)))
{
+ if (start < pos)
+ /* As we can't handle this situation (perhaps, font-lock added
+ a new composition), we just return here hoping that next
+ redisplay will detect this composition much earlier. */
+ return HANDLED_NORMALLY;
if (start != pos)
{
if (STRINGP (it->string))
&& it->stop_charpos <= it->end_charpos));
it->current.overlay_string_index = -1;
it->n_overlay_strings = 0;
+ it->overlay_strings_charpos = -1;
/* If we're at the end of the buffer, record that we have
processed the overlay strings there already, so that
/* There are more overlay strings to process. If
IT->current.overlay_string_index has advanced to a position
where we must load IT->overlay_strings with more strings, do
- it. */
+ it. We must load at the IT->overlay_strings_charpos where
+ IT->n_overlay_strings was originally computed; when invisible
+ text is present, this might not be IT_CHARPOS (Bug#7016). */
int i = it->current.overlay_string_index % OVERLAY_STRING_CHUNK_SIZE;
if (it->current.overlay_string_index && i == 0)
- load_overlay_strings (it, 0);
+ load_overlay_strings (it, it->overlay_strings_charpos);
/* Initialize IT to deliver display elements from the overlay
string. */
if (n > 1)
qsort (entries, n, sizeof *entries, compare_overlay_entries);
- /* Record the total number of strings to process. */
+ /* Record number of overlay strings, and where we computed it. */
it->n_overlay_strings = n;
+ it->overlay_strings_charpos = charpos;
/* IT->current.overlay_string_index is the number of overlay strings
that have already been consumed by IT. Copy some of the
it->dp = XCHAR_TABLE (Vstandard_display_table);
it->stop_charpos = charpos;
+ if (s == NULL && it->multibyte_p)
+ {
+ EMACS_INT endpos = SCHARS (it->string);
+ if (endpos > it->end_charpos)
+ endpos = it->end_charpos;
+ composition_compute_stop_pos (&it->cmp_it, charpos, -1, endpos,
+ it->string);
+ }
CHECK_IT (it);
}
/* Return 1 iff a character at CHARPOS (and BYTEPOS) is composed
(possibly with the following characters). */
-#define CHAR_COMPOSED_P(IT,CHARPOS,BYTEPOS) \
+#define CHAR_COMPOSED_P(IT,CHARPOS,BYTEPOS,END_CHARPOS) \
((IT)->cmp_it.id >= 0 \
|| ((IT)->cmp_it.stop_pos == (CHARPOS) \
&& composition_reseat_it (&(IT)->cmp_it, CHARPOS, BYTEPOS, \
- (IT)->end_charpos, (IT)->w, \
+ END_CHARPOS, (IT)->w, \
FACE_FROM_ID ((IT)->f, (IT)->face_id), \
(IT)->string)))
Lisp_Object dv;
struct charset *unibyte = CHARSET_FROM_ID (charset_unibyte);
enum { char_is_other = 0, char_is_nbsp, char_is_soft_hyphen }
- nbsp_or_shy = char_is_other;
- int decoded = it->c;
+ nbsp_or_shy = char_is_other;
+ int c = it->c; /* This is the character to display. */
+
+ if (! it->multibyte_p && ! ASCII_CHAR_P (c))
+ {
+ xassert (SINGLE_BYTE_CHAR_P (c));
+ if (unibyte_display_via_language_environment)
+ {
+ c = DECODE_CHAR (unibyte, c);
+ if (c < 0)
+ c = BYTE8_TO_CHAR (it->c);
+ }
+ else
+ c = BYTE8_TO_CHAR (it->c);
+ }
if (it->dp
- && (dv = DISP_CHAR_VECTOR (it->dp, it->c),
+ && (dv = DISP_CHAR_VECTOR (it->dp, c),
VECTORP (dv)))
{
struct Lisp_Vector *v = XVECTOR (dv);
/* Return the first character from the display table
entry, if not empty. If empty, don't display the
current character. */
- if (v->size)
+ if (v->header.size)
{
it->dpvec_char_len = it->len;
it->dpvec = v->contents;
- it->dpend = v->contents + v->size;
+ it->dpend = v->contents + v->header.size;
it->current.dpvec_index = 0;
it->dpvec_face_id = -1;
it->saved_face_id = it->face_id;
goto get_next;
}
- if (unibyte_display_via_language_environment
- && !ASCII_CHAR_P (it->c))
- decoded = DECODE_CHAR (unibyte, it->c);
-
- if (it->c >= 0x80 && ! NILP (Vnobreak_char_display))
- {
- if (it->multibyte_p)
- nbsp_or_shy = (it->c == 0xA0 ? char_is_nbsp
- : it->c == 0xAD ? char_is_soft_hyphen
- : char_is_other);
- else if (unibyte_display_via_language_environment)
- nbsp_or_shy = (decoded == 0xA0 ? char_is_nbsp
- : decoded == 0xAD ? char_is_soft_hyphen
- : char_is_other);
- }
+ if (! ASCII_CHAR_P (c) && ! NILP (Vnobreak_char_display))
+ nbsp_or_shy = (c == 0xA0 ? char_is_nbsp
+ : c == 0xAD ? char_is_soft_hyphen
+ : char_is_other);
/* Translate control characters into `\003' or `^C' form.
Control characters coming from a display table entry are
the translation. This could easily be changed but I
don't believe that it is worth doing.
- If it->multibyte_p is nonzero, non-printable non-ASCII
- characters are also translated to octal form.
+ NBSP and SOFT-HYPEN are property translated too.
- If it->multibyte_p is zero, eight-bit characters that
- don't have corresponding multibyte char code are also
+ Non-printable characters and raw-byte characters are also
translated to octal form. */
- if ((it->c < ' '
+ if (((c < ' ' || c == 127) /* ASCII control chars */
? (it->area != TEXT_AREA
/* In mode line, treat \n, \t like other crl chars. */
- || (it->c != '\t'
+ || (c != '\t'
&& it->glyph_row
&& (it->glyph_row->mode_line_p || it->avoid_cursor_p))
- || (it->c != '\n' && it->c != '\t'))
+ || (c != '\n' && c != '\t'))
: (nbsp_or_shy
- || (it->multibyte_p
- ? ! CHAR_PRINTABLE_P (it->c)
- : (! unibyte_display_via_language_environment
- ? it->c >= 0x80
- : (decoded >= 0x80 && decoded < 0xA0))))))
+ || CHAR_BYTE8_P (c)
+ || ! CHAR_PRINTABLE_P (c))))
{
- /* IT->c is a control character which must be displayed
+ /* C is a control character, NBSP, SOFT-HYPEN, raw-byte,
+ or a non-printable character which must be displayed
either as '\003' or as `^C' where the '\\' and '^'
can be defined in the display table. Fill
IT->ctl_chars with glyphs for what we have to
/* Handle control characters with ^. */
- if (it->c < 128 && it->ctl_arrow_p)
+ if (ASCII_CHAR_P (c) && it->ctl_arrow_p)
{
int g;
}
XSETINT (it->ctl_chars[0], g);
- XSETINT (it->ctl_chars[1], it->c ^ 0100);
+ XSETINT (it->ctl_chars[1], c ^ 0100);
ctl_len = 2;
goto display_control;
}
face_id = merge_faces (it->f, Qnobreak_space, 0,
it->face_id);
- it->c = ' ';
+ c = ' ';
XSETINT (it->ctl_chars[0], ' ');
ctl_len = 1;
goto display_control;
if (EQ (Vnobreak_char_display, Qt)
&& nbsp_or_shy == char_is_soft_hyphen)
{
- it->c = '-';
XSETINT (it->ctl_chars[0], '-');
ctl_len = 1;
goto display_control;
if (nbsp_or_shy)
{
XSETINT (it->ctl_chars[0], escape_glyph);
- it->c = (nbsp_or_shy == char_is_nbsp ? ' ' : '-');
- XSETINT (it->ctl_chars[1], it->c);
+ c = (nbsp_or_shy == char_is_nbsp ? ' ' : '-');
+ XSETINT (it->ctl_chars[1], c);
ctl_len = 2;
goto display_control;
}
{
- unsigned char str[MAX_MULTIBYTE_LENGTH];
- int len;
- int i;
+ char str[10];
+ int len, i;
- /* Set IT->ctl_chars[0] to the glyph for `\\'. */
- if (CHAR_BYTE8_P (it->c))
- {
- str[0] = CHAR_TO_BYTE8 (it->c);
- len = 1;
- }
- else if (it->c < 256)
- {
- str[0] = it->c;
- len = 1;
- }
- else
- {
- /* It's an invalid character, which shouldn't
- happen actually, but due to bugs it may
- happen. Let's print the char as is, there's
- not much meaningful we can do with it. */
- str[0] = it->c;
- str[1] = it->c >> 8;
- str[2] = it->c >> 16;
- str[3] = it->c >> 24;
- len = 4;
- }
+ if (CHAR_BYTE8_P (c))
+ /* Display \200 instead of \17777600. */
+ c = CHAR_TO_BYTE8 (c);
+ len = sprintf (str, "%03o", c);
+ XSETINT (it->ctl_chars[0], escape_glyph);
for (i = 0; i < len; i++)
- {
- int g;
- XSETINT (it->ctl_chars[i * 4], escape_glyph);
- /* Insert three more glyphs into IT->ctl_chars for
- the octal display of the character. */
- g = ((str[i] >> 6) & 7) + '0';
- XSETINT (it->ctl_chars[i * 4 + 1], g);
- g = ((str[i] >> 3) & 7) + '0';
- XSETINT (it->ctl_chars[i * 4 + 2], g);
- g = (str[i] & 7) + '0';
- XSETINT (it->ctl_chars[i * 4 + 3], g);
- }
- ctl_len = len * 4;
+ XSETINT (it->ctl_chars[i + 1], str[i]);
+ ctl_len = len + 1;
}
display_control:
it->ellipsis_p = 0;
goto get_next;
}
+ it->char_to_display = c;
+ }
+ else if (success_p)
+ {
+ it->char_to_display = it->c;
}
}
int pos = (it->s ? -1
: STRINGP (it->string) ? IT_STRING_CHARPOS (*it)
: IT_CHARPOS (*it));
+ int c;
+
+ if (it->what == IT_CHARACTER)
+ c = it->char_to_display;
+ else
+ {
+ struct composition *cmp = composition_table[it->cmp_it.id];
+ int i;
- it->face_id = FACE_FOR_CHAR (it->f, face, it->c, pos, it->string);
+ c = ' ';
+ for (i = 0; i < cmp->glyph_len; i++)
+ if ((c = COMPOSITION_GLYPH (cmp, i)) != '\t')
+ break;
+ }
+ it->face_id = FACE_FOR_CHAR (it->f, face, c, pos, it->string);
}
}
#endif
or `\003'.
IT->dpvec holds the glyphs to return as characters.
- IT->saved_face_id holds the face id before the display vector--
- it is restored into IT->face_idin set_iterator_to_next. */
+ IT->saved_face_id holds the face id before the display vector--it
+ is restored into IT->face_id in set_iterator_to_next. */
static int
next_element_from_display_vector (it)
return 0;
}
else if (CHAR_COMPOSED_P (it, IT_STRING_CHARPOS (*it),
- IT_STRING_BYTEPOS (*it))
+ IT_STRING_BYTEPOS (*it), SCHARS (it->string))
&& next_element_from_composition (it))
{
return 1;
}
else if (STRING_MULTIBYTE (it->string))
{
- int remaining = SBYTES (it->string) - IT_STRING_BYTEPOS (*it);
const unsigned char *s = (SDATA (it->string)
+ IT_STRING_BYTEPOS (*it));
it->c = string_char_and_length (s, &it->len);
CHARPOS (position) = BYTEPOS (position) = -1;
}
else if (CHAR_COMPOSED_P (it, IT_STRING_CHARPOS (*it),
- IT_STRING_BYTEPOS (*it))
+ IT_STRING_BYTEPOS (*it), it->string_nchars)
&& next_element_from_composition (it))
{
return 1;
}
else if (STRING_MULTIBYTE (it->string))
{
- int maxlen = SBYTES (it->string) - IT_STRING_BYTEPOS (*it);
const unsigned char *s = (SDATA (it->string)
+ IT_STRING_BYTEPOS (*it));
it->c = string_char_and_length (s, &it->len);
BYTEPOS (it->position) = CHARPOS (it->position) = -1;
}
else if (it->multibyte_p)
- {
- /* Implementation note: The calls to strlen apparently aren't a
- performance problem because there is no noticeable performance
- difference between Emacs running in unibyte or multibyte mode. */
- int maxlen = strlen (it->s) - IT_BYTEPOS (*it);
- it->c = string_char_and_length (it->s + IT_BYTEPOS (*it), &it->len);
- }
+ it->c = string_char_and_length (it->s + IT_BYTEPOS (*it), &it->len);
else
it->c = it->s[IT_BYTEPOS (*it)], it->len = 1;
/* Set up IT to return characters from an ellipsis, if appropriate.
The definition of the ellipsis glyphs may come from a display table
- entry. This function Fills IT with the first glyph from the
+ entry. This function fills IT with the first glyph from the
ellipsis if an ellipsis is to be displayed. */
static int
struct it *it;
{
it->what = IT_IMAGE;
+ it->ignore_overlay_strings_at_pos_p = 0;
return 1;
}
&& IT_CHARPOS (*it) >= it->redisplay_end_trigger_charpos)
run_redisplay_end_trigger_hook (it);
- if (CHAR_COMPOSED_P (it, IT_CHARPOS (*it), IT_BYTEPOS (*it))
+ if (CHAR_COMPOSED_P (it, IT_CHARPOS (*it), IT_BYTEPOS (*it),
+ it->end_charpos)
&& next_element_from_composition (it))
{
return 1;
if (! STRINGP (f->name)
|| SBYTES (f->name) != len
|| bcmp (title, SDATA (f->name), len) != 0)
- {
-#ifdef HAVE_NS
- if (FRAME_NS_P (f))
- {
- if (!MINI_WINDOW_P(XWINDOW(f->selected_window)))
- {
- if (EQ (fmt, Qt))
- ns_set_name_as_filename (f);
- else
- x_implicitly_set_name (f, make_string(title, len),
- Qnil);
- }
- }
- else
-#endif
- x_implicitly_set_name (f, make_string (title, len), Qnil);
- }
-#ifdef HAVE_NS
- if (FRAME_NS_P (f))
- {
- /* do this also for frames with explicit names */
- ns_implicitly_set_icon_type(f);
- ns_set_doc_edited(f, Fbuffer_modified_p
- (XWINDOW (f->selected_window)->buffer), Qnil);
- }
-#endif
+ x_implicitly_set_name (f, make_string (title, len), Qnil);
}
}
menu_bar_hooks_run = update_menu_bar (f, 0, menu_bar_hooks_run);
#ifdef HAVE_WINDOW_SYSTEM
update_tool_bar (f, 0);
+#endif
+#ifdef HAVE_NS
+ if (windows_or_buffers_changed
+ && FRAME_NS_P (f))
+ ns_set_doc_edited (f, Fbuffer_modified_p
+ (XWINDOW (f->selected_window)->buffer));
#endif
UNGCPRO;
}
current_buffer = XBUFFER (w->buffer);
if (w == XWINDOW (selected_window))
- pt = BUF_PT (current_buffer);
+ pt = PT;
else
{
pt = marker_position (w->pointm);
int pt;
if (w == XWINDOW (selected_window))
- pt = BUF_PT (current_buffer);
+ pt = PT;
else
pt = marker_position (w->pointm);
int preserve_echo_area;
{
struct window *w = XWINDOW (selected_window);
+ struct window *sw;
struct frame *f;
int pause;
int must_finish = 0;
}
retry:
+ /* Remember the currently selected window. */
+ sw = w;
+
if (!EQ (old_frame, selected_frame)
&& FRAME_LIVE_P (XFRAME (old_frame)))
/* When running redisplay, we play a bit fast-and-loose and allow e.g.
/* Notice any pending interrupt request to change frame size. */
do_pending_window_change (1);
+ /* do_pending_window_change could change the selected_window due to
+ frame resizing which makes the selected window too small. */
+ if (WINDOWP (selected_window) && (w = XWINDOW (selected_window)) != sw)
+ {
+ sw = w;
+ reconsider_clip_changes (w, current_buffer);
+ }
+
/* Clear frames marked as garbaged. */
if (frame_garbaged)
clear_garbaged_frames ();
if (!must_finish)
{
do_pending_window_change (1);
+ /* If selected_window changed, redisplay again. */
+ if (WINDOWP (selected_window)
+ && (w = XWINDOW (selected_window)) != sw)
+ goto retry;
/* We used to always goto end_of_redisplay here, but this
isn't enough if we have a blinking cursor. */
do_pending_window_change (1);
/* If we just did a pending size change, or have additional
- visible frames, redisplay again. */
- if (windows_or_buffers_changed && !pause)
+ visible frames, or selected_window changed, redisplay again. */
+ if ((windows_or_buffers_changed && !pause)
+ || (WINDOWP (selected_window) && (w = XWINDOW (selected_window)) != sw))
goto retry;
/* Clear the face cache eventually. */
/* If cursor ends up on a partially visible line,
treat that as being off the bottom of the screen. */
- if (! cursor_row_fully_visible_p (w, extra_scroll_margin_lines <= 1, 0))
+ if (! cursor_row_fully_visible_p (w, extra_scroll_margin_lines <= 1, 0)
+ /* It's possible that the cursor is on the first line of the
+ buffer, which is partially obscured due to a vscroll
+ (Bug#7537). In that case, avoid looping forever . */
+ && extra_scroll_margin_lines < w->desired_matrix->nrows - 1)
{
clear_glyph_matrix (w->desired_matrix);
++extra_scroll_margin_lines;
= try_window_reusing_current_matrix (w)))
{
IF_DEBUG (debug_method_add (w, "1"));
- if (try_window (window, startp, 1) < 0)
+ if (try_window (window, startp, TRY_WINDOW_CHECK_MARGINS) < 0)
/* -1 means we need to scroll.
0 means we need new matrices, but fonts_changed_p
is set in that case, so we will detect it below. */
(*FRAME_TERMINAL (f)->redeem_scroll_bar_hook) (w);
}
- /* Restore current_buffer and value of point in it. */
- TEMP_SET_PT_BOTH (CHARPOS (opoint), BYTEPOS (opoint));
+ /* Restore current_buffer and value of point in it. The window
+ update may have changed the buffer, so first make sure `opoint'
+ is still valid (Bug#6177). */
+ if (CHARPOS (opoint) < BEGV)
+ TEMP_SET_PT_BOTH (BEGV, BEGV_BYTE);
+ else if (CHARPOS (opoint) > ZV)
+ TEMP_SET_PT_BOTH (Z, Z_BYTE);
+ else
+ TEMP_SET_PT_BOTH (CHARPOS (opoint), BYTEPOS (opoint));
+
set_buffer_internal_1 (old);
/* Avoid an abort in TEMP_SET_PT_BOTH if the buffer has become
shorter. This can be caused by log truncation in *Messages*. */
Value is 1 if successful. It is zero if fonts were loaded during
redisplay which makes re-adjusting glyph matrices necessary, and -1
if point would appear in the scroll margins.
- (We check that only if CHECK_MARGINS is nonzero. */
+ (We check the former only if TRY_WINDOW_IGNORE_FONTS_CHANGE is
+ unset in FLAGS, and the latter only if TRY_WINDOW_CHECK_MARGINS is
+ set in FLAGS.) */
int
-try_window (window, pos, check_margins)
+try_window (window, pos, flags)
Lisp_Object window;
struct text_pos pos;
- int check_margins;
+ int flags;
{
struct window *w = XWINDOW (window);
struct it it;
{
if (display_line (&it))
last_text_row = it.glyph_row - 1;
- if (fonts_changed_p)
+ if (fonts_changed_p && !(flags & TRY_WINDOW_IGNORE_FONTS_CHANGE))
return 0;
}
/* Don't let the cursor end in the scroll margins. */
- if (check_margins
+ if ((flags & TRY_WINDOW_CHECK_MARGINS)
&& !MINI_WINDOW_P (w))
{
int this_scroll_margin;
row->visible_height -= min_y - row->y;
if (row->y + row->height > max_y)
row->visible_height -= row->y + row->height - max_y;
- row->redraw_fringe_bitmaps_p = 1;
+ if (row->fringe_bitmap_periodic_p)
+ row->redraw_fringe_bitmaps_p = 1;
it.current_y += row->height;
row->visible_height -= min_y - row->y;
if (row->y + row->height > max_y)
row->visible_height -= row->y + row->height - max_y;
- row->redraw_fringe_bitmaps_p = 1;
+ if (row->fringe_bitmap_periodic_p)
+ row->redraw_fringe_bitmaps_p = 1;
}
/* Scroll the current matrix. */
/* Get the next character. */
if (multibyte_p)
- it.c = string_char_and_length (p, &it.len);
+ it.c = it.char_to_display = string_char_and_length (p, &it.len);
else
- it.c = *p, it.len = 1;
+ {
+ it.c = it.char_to_display = *p, it.len = 1;
+ if (! ASCII_CHAR_P (it.c))
+ it.char_to_display = BYTE8_TO_CHAR (it.c);
+ }
p += it.len;
/* Get its face. */
ilisp = make_number (p - arrow_string);
face = Fget_text_property (ilisp, Qface, overlay_arrow_string);
- it.face_id = compute_char_face (f, it.c, face);
+ it.face_id = compute_char_face (f, it.char_to_display, face);
/* Compute its width, get its glyphs. */
n_glyphs_before = it.glyph_row->used[TEXT_AREA];
append_space_for_newline has been called. */
enum display_element_type saved_what = it->what;
int saved_c = it->c, saved_len = it->len;
+ int saved_char_to_display = it->char_to_display;
int saved_x = it->current_x;
int saved_face_id = it->face_id;
struct text_pos saved_pos;
it->what = IT_CHARACTER;
bzero (&it->position, sizeof it->position);
it->object = make_number (0);
- it->c = ' ';
+ it->c = it->char_to_display = ' ';
it->len = 1;
if (default_face_p)
it->face_id = saved_face_id;
it->len = saved_len;
it->c = saved_c;
+ it->char_to_display = saved_char_to_display;
return 1;
}
}
it->what = IT_CHARACTER;
bzero (&it->position, sizeof it->position);
it->object = make_number (0);
- it->c = ' ';
+ it->c = it->char_to_display = ' ';
it->len = 1;
it->face_id = face->id;
\f
/* Push the display property PROP so that it will be rendered at the
- current position in IT. */
+ current position in IT. Return 1 if PROP was successfully pushed,
+ 0 otherwise. */
-static void
+static int
push_display_prop (struct it *it, Lisp_Object prop)
{
push_it (it);
- /* Never display a cursor on the prefix. */
- it->avoid_cursor_p = 1;
-
if (STRINGP (prop))
{
if (SCHARS (prop) == 0)
{
pop_it (it);
- return;
+ return 0;
}
it->string = prop;
else
{
pop_it (it); /* bogus display property, give up */
- return;
+ return 0;
}
+
+ return 1;
}
/* Return the character-property PROP at the current position in IT. */
if (NILP (prefix))
prefix = Vline_prefix;
}
- if (! NILP (prefix))
+ if (! NILP (prefix) && push_display_prop (it, prefix))
{
- push_display_prop (it, prefix);
/* If the prefix is wider than the window, and we try to wrap
it, it would acquire its own wrap prefix, and so on till the
iterator stack overflows. So, don't wrap the prefix. */
it->line_wrap = TRUNCATE;
+ it->avoid_cursor_p = 1;
}
}
/* Display all items of the menu bar. */
items = FRAME_MENU_BAR_ITEMS (it.f);
- for (i = 0; i < XVECTOR (items)->size; i += 4)
+ for (i = 0; i < XVECTOR_SIZE (items); i += 4)
{
Lisp_Object string;
int multibyte;
int bytepos, charpos;
unsigned char *spec;
+ Lisp_Object string;
bytepos = percent_position;
charpos = (STRING_MULTIBYTE (elt)
? string_byte_to_char (elt, bytepos)
: bytepos);
- spec
- = decode_mode_spec (it->w, c, field, prec, &multibyte);
+ spec = decode_mode_spec (it->w, c, field, prec, &string);
+ multibyte = STRINGP (string) && STRING_MULTIBYTE (string);
switch (mode_line_target)
{
int nglyphs_before, nwritten;
nglyphs_before = it->glyph_row->used[TEXT_AREA];
- nwritten = display_string (spec, Qnil, elt,
+ nwritten = display_string (spec, string, elt,
charpos, 0, it,
field, prec, 0,
multibyte);
First arg FORMAT specifies the mode line format (see `mode-line-format'
for details) to use.
-Optional second arg FACE specifies the face property to put
-on all characters for which no face is specified.
-The value t means whatever face the window's mode line currently uses
-\(either `mode-line' or `mode-line-inactive', depending).
-A value of nil means the default is no face property.
-If FACE is an integer, the value string has no text properties.
+By default, the format is evaluated for the currently selected window.
+
+Optional second arg FACE specifies the face property to put on all
+characters for which no face is specified. The value nil means the
+default face. The value t means whatever face the window's mode line
+currently uses (either `mode-line' or `mode-line-inactive',
+depending on whether the window is the selected window or not).
+An integer value means the value string has no text
+properties.
Optional third and fourth args WINDOW and BUFFER specify the window
and buffer to use as the context for the formatting (defaults
-are the selected window and the window's buffer). */)
+are the selected window and the WINDOW's buffer). */)
(format, face, window, buffer)
Lisp_Object format, face, window, buffer;
{
int len;
struct window *w;
struct buffer *old_buffer = NULL;
- int face_id = -1;
+ int face_id;
int no_props = INTEGERP (face);
int count = SPECPDL_INDEX ();
Lisp_Object str;
if (no_props)
face = Qnil;
- if (!NILP (face))
- {
- if (EQ (face, Qt))
- face = (EQ (window, selected_window) ? Qmode_line : Qmode_line_inactive);
- face_id = lookup_named_face (XFRAME (WINDOW_FRAME (w)), face, 0);
- }
-
- if (face_id < 0)
- face_id = DEFAULT_FACE_ID;
+ face_id = (NILP (face) || EQ (face, Qdefault)) ? DEFAULT_FACE_ID
+ : EQ (face, Qt) ? (EQ (window, selected_window)
+ ? MODE_LINE_FACE_ID : MODE_LINE_INACTIVE_FACE_ID)
+ : EQ (face, Qmode_line) ? MODE_LINE_FACE_ID
+ : EQ (face, Qmode_line_inactive) ? MODE_LINE_INACTIVE_FACE_ID
+ : EQ (face, Qheader_line) ? HEADER_LINE_FACE_ID
+ : EQ (face, Qtool_bar) ? TOOL_BAR_FACE_ID
+ : DEFAULT_FACE_ID;
if (XBUFFER (buffer) != current_buffer)
old_buffer = current_buffer;
/* Return a string for the output of a mode line %-spec for window W,
generated by character C. PRECISION >= 0 means don't return a
string longer than that value. FIELD_WIDTH > 0 means pad the
- string returned with spaces to that value. Return 1 in *MULTIBYTE
- if the result is multibyte text.
+ string returned with spaces to that value. Return a Lisp string in
+ *STRING if the resulting string is taken from that Lisp string.
Note we operate on the current buffer for most purposes,
the exception being w->base_line_pos. */
static char lots_of_dashes[] = "--------------------------------------------------------------------------------------------------------------------------------------------";
static char *
-decode_mode_spec (w, c, field_width, precision, multibyte)
+decode_mode_spec (w, c, field_width, precision, string)
struct window *w;
register int c;
int field_width, precision;
- int *multibyte;
+ Lisp_Object *string;
{
Lisp_Object obj;
struct frame *f = XFRAME (WINDOW_FRAME (w));
struct buffer *b = current_buffer;
obj = Qnil;
- *multibyte = 0;
+ *string = Qnil;
switch (c)
{
case '@':
{
- Lisp_Object val;
- val = call1 (intern ("file-remote-p"), current_buffer->directory);
+ int count = inhibit_garbage_collection ();
+ Lisp_Object val = call1 (intern ("file-remote-p"),
+ current_buffer->directory);
+ unbind_to (count, Qnil);
+
if (NILP (val))
return "-";
else
if (STRINGP (obj))
{
- *multibyte = STRING_MULTIBYTE (obj);
+ *string = obj;
return (char *) SDATA (obj);
}
else
/* Display a NUL-terminated string, starting with index START.
If STRING is non-null, display that C string. Otherwise, the Lisp
- string LISP_STRING is displayed.
+ string LISP_STRING is displayed. There's a case that STRING is
+ non-null and LISP_STRING is not nil. It means STRING is a string
+ data of LISP_STRING. In that case, we display LISP_STRING while
+ ignoring its text properties.
If FACE_STRING is not nil, FACE_STRING_POS is a position in
FACE_STRING. Display STRING or LISP_STRING with the face at
/* Initialize the iterator IT for iteration over STRING beginning
with index START. */
- reseat_to_string (it, string, lisp_string, start,
+ reseat_to_string (it, NILP (lisp_string) ? string : NULL, lisp_string, start,
precision, field_width, multibyte);
+ if (string && STRINGP (lisp_string))
+ /* LISP_STRING is the one returned by decode_mode_spec. We should
+ ignore its text properties. */
+ it->stop_charpos = -1;
/* If displaying STRING, set up the face of the iterator
from LISP_STRING, if that's given. */
s->first_glyph = row->glyphs[area] + start;
s->height = row->height;
s->y = WINDOW_TO_FRAME_PIXEL_Y (w, row->y);
-
- /* Display the internal border below the tool-bar window. */
- if (WINDOWP (s->f->tool_bar_window)
- && s->w == XWINDOW (s->f->tool_bar_window))
- s->y -= FRAME_INTERNAL_BORDER_WIDTH (s->f);
-
s->ybase = s->y + row->ascent;
}
if (face->font)
{
- unsigned code = face->font->driver->encode_char (face->font, glyph->u.ch);
+ unsigned code;
+
+ if (CHAR_BYTE8_P (glyph->u.ch))
+ code = CHAR_TO_BYTE8 (glyph->u.ch);
+ else
+ code = face->font->driver->encode_char (face->font, glyph->u.ch);
if (code != FONT_INVALID_CODE)
STORE_XCHAR2B (char2b, (code >> 8), (code & 0xFF));
}
+/* Get glyph code of character C in FONT in the two-byte form CHAR2B.
+ Retunr 1 if FONT has a glyph for C, otherwise return 0. */
+
+static INLINE int
+get_char_glyph_code (int c, struct font *font, XChar2b *char2b)
+{
+ unsigned code;
+
+ if (CHAR_BYTE8_P (c))
+ code = CHAR_TO_BYTE8 (c);
+ else
+ code = font->driver->encode_char (font, c);
+
+ if (code == FONT_INVALID_CODE)
+ return 0;
+ STORE_XCHAR2B (char2b, (code >> 8), (code & 0xFF));
+ return 1;
+}
+
+
/* Fill glyph string S with composition components specified by S->cmp.
BASE_FACE is the base face of the composition.
}
s->cmp_to = i;
+ if (s->face == NULL)
+ {
+ s->face = base_face->ascii_face;
+ s->font = s->face->font;
+ }
+
/* All glyph strings for the same composition has the same width,
i.e. the width set for the first component of the composition. */
s->width = s->first_glyph->pixel_width;
j = i;
BUILD_GLYPH_STRINGS (j, start, h, t,
overlap_hl, dummy_x, last_x);
+ start = i;
compute_overhangs_and_x (t, head->x, 1);
prepend_glyph_string_lists (&head, &tail, h, t);
clip_head = head;
BUILD_GLYPH_STRINGS (end, i, h, t,
overlap_hl, x, last_x);
+ /* Because BUILD_GLYPH_STRINGS updates the first argument,
+ we don't have `end = i;' here. */
compute_overhangs_and_x (h, tail->x + tail->width, 0);
append_glyph_string_lists (&head, &tail, h, t);
clip_tail = tail;
it2 = *it;
if (it->multibyte_p)
+ it2.c = it2.char_to_display = STRING_CHAR_AND_LENGTH (p, it2.len);
+ else
{
- int maxlen = ((IT_BYTEPOS (*it) >= GPT ? ZV : GPT)
- - IT_BYTEPOS (*it));
- it2.c = STRING_CHAR_AND_LENGTH (p, it2.len);
+ it2.c = it2.char_to_display = *p, it2.len = 1;
+ if (! ASCII_CHAR_P (it2.c))
+ it2.char_to_display = BYTE8_TO_CHAR (it2.c);
}
- else
- it2.c = *p, it2.len = 1;
it2.glyph_row = NULL;
it2.what = IT_CHARACTER;
if (it->what == IT_CHARACTER)
{
XChar2b char2b;
- struct font *font;
struct face *face = FACE_FROM_ID (it->f, it->face_id);
- struct font_metrics *pcm;
- int font_not_found_p;
+ struct font *font = face->font;
+ int font_not_found_p = font == NULL;
+ struct font_metrics *pcm = NULL;
int boff; /* baseline offset */
- /* We may change it->multibyte_p upon unibyte<->multibyte
- conversion. So, save the current value now and restore it
- later.
-
- Note: It seems that we don't have to record multibyte_p in
- struct glyph because the character code itself tells whether
- or not the character is multibyte. Thus, in the future, we
- must consider eliminating the field `multibyte_p' in the
- struct glyph. */
- int saved_multibyte_p = it->multibyte_p;
-
- /* Maybe translate single-byte characters to multibyte, or the
- other way. */
- it->char_to_display = it->c;
- if (!ASCII_BYTE_P (it->c)
- && ! it->multibyte_p)
- {
- if (SINGLE_BYTE_CHAR_P (it->c)
- && unibyte_display_via_language_environment)
- {
- struct charset *unibyte = CHARSET_FROM_ID (charset_unibyte);
-
- /* get_next_display_element assures that this decoding
- never fails. */
- it->char_to_display = DECODE_CHAR (unibyte, it->c);
- it->multibyte_p = 1;
- it->face_id = FACE_FOR_CHAR (it->f, face, it->char_to_display,
- -1, Qnil);
- face = FACE_FROM_ID (it->f, it->face_id);
- }
- }
-
- /* Get font to use. Encode IT->char_to_display. */
- get_char_face_and_encoding (it->f, it->char_to_display, it->face_id,
- &char2b, it->multibyte_p, 0);
- font = face->font;
- font_not_found_p = font == NULL;
if (font_not_found_p)
{
/* When no suitable font found, display an empty box based
boff = VCENTER_BASELINE_OFFSET (font, it->f) - boff;
}
- if (it->char_to_display >= ' '
- && (!it->multibyte_p || it->char_to_display < 128))
+ if (it->char_to_display != '\n' && it->char_to_display != '\t')
{
- /* Either unibyte or ASCII. */
int stretched_p;
it->nglyphs = 1;
- pcm = get_per_char_metric (it->f, font, &char2b);
-
if (it->override_ascent >= 0)
{
it->ascent = it->override_ascent;
it->descent = FONT_DESCENT (font) - boff;
}
+ if (! font_not_found_p
+ && get_char_glyph_code (it->char_to_display, font, &char2b))
+ {
+ pcm = get_per_char_metric (it->f, font, &char2b);
+ if (pcm->width == 0
+ && pcm->rbearing == 0 && pcm->lbearing == 0)
+ pcm = NULL;
+ }
+
if (pcm)
{
it->phys_ascent = pcm->ascent + boff;
it->glyph_not_available_p = 1;
it->phys_ascent = it->ascent;
it->phys_descent = it->descent;
- it->pixel_width = FONT_WIDTH (font);
+ it->pixel_width = font->space_width;
}
if (it->constrain_row_ascent_descent_p)
}
}
}
- else if (it->char_to_display == '\t')
+ else /* i.e. (it->char_to_display == '\t') */
{
if (font->space_width > 0)
{
it->nglyphs = 1;
}
}
- else
- {
- /* A multi-byte character. Assume that the display width of the
- character is the width of the character multiplied by the
- width of the font. */
-
- /* If we found a font, this font should give us the right
- metrics. If we didn't find a font, use the frame's
- default font and calculate the width of the character by
- multiplying the width of font by the width of the
- character. */
-
- pcm = get_per_char_metric (it->f, font, &char2b);
-
- if (font_not_found_p || !pcm)
- {
- int char_width = CHAR_WIDTH (it->char_to_display);
-
- if (char_width == 0)
- /* This is a non spacing character. But, as we are
- going to display an empty box, the box must occupy
- at least one column. */
- char_width = 1;
- it->glyph_not_available_p = 1;
- it->pixel_width = font->space_width * char_width;
- it->phys_ascent = FONT_BASE (font) + boff;
- it->phys_descent = FONT_DESCENT (font) - boff;
- }
- else
- {
- it->pixel_width = pcm->width;
- it->phys_ascent = pcm->ascent + boff;
- it->phys_descent = pcm->descent - boff;
- if (it->glyph_row
- && (pcm->lbearing < 0
- || pcm->rbearing > pcm->width))
- it->glyph_row->contains_overlapping_glyphs_p = 1;
- }
- it->nglyphs = 1;
- it->ascent = FONT_BASE (font) + boff;
- it->descent = FONT_DESCENT (font) - boff;
- if (face->box != FACE_NO_BOX)
- {
- int thick = face->box_line_width;
-
- if (thick > 0)
- {
- it->ascent += thick;
- it->descent += thick;
- }
- else
- thick = - thick;
-
- if (it->start_of_box_run_p)
- it->pixel_width += thick;
- if (it->end_of_box_run_p)
- it->pixel_width += thick;
- }
-
- /* If face has an overline, add the height of the overline
- (1 pixel) and a 1 pixel margin to the character height. */
- if (face->overline_p)
- it->ascent += overline_margin;
-
- take_vertical_position_into_account (it);
-
- if (it->ascent < 0)
- it->ascent = 0;
- if (it->descent < 0)
- it->descent = 0;
-
- if (it->glyph_row)
- append_glyph (it);
- if (it->pixel_width == 0)
- /* We assure that all visible glyphs have at least 1-pixel
- width. */
- it->pixel_width = 1;
- }
- it->multibyte_p = saved_multibyte_p;
}
else if (it->what == IT_COMPOSITION && it->cmp_it.ch < 0)
{
}
else
{
- width = FONT_WIDTH (font);
+ width = font->space_width;
ascent = FONT_BASE (font);
descent = FONT_DESCENT (font);
lbearing = 0;
/* Switch the display of W's cursor on or off, according to the value
of ON. */
-#ifndef HAVE_NS
-static
-#endif
void
update_window_cursor (w, on)
struct window *w;
{
struct Lisp_Vector *v = XVECTOR (XCDR (hot_spot));
Lisp_Object *poly = v->contents;
- int n = v->size;
+ int n = v->header.size;
int i;
int inside = 0;
Lisp_Object lx, ly;
int x, y;
{
Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
- enum window_part part;
+ enum window_part part = ON_NOTHING;
Lisp_Object window;
struct window *w;
Cursor cursor = No_Cursor;
#endif
if (NILP (Vmouse_highlight)
- || !f->glyphs_initialized_p)
+ || !f->glyphs_initialized_p
+ || f->pointer_invisible)
return;
dpyinfo->mouse_face_mouse_x = x;
/* Which window is that in? */
window = window_from_coordinates (f, x, y, &part, 0, 0, 1);
- /* If we were displaying active text in another window, clear that.
- Also clear if we move out of text area in same window. */
+ /* If displaying active text in another window, clear that. */
if (! EQ (window, dpyinfo->mouse_face_window)
- || (part != ON_TEXT && part != ON_MODE_LINE && part != ON_HEADER_LINE
- && !NILP (dpyinfo->mouse_face_window)))
+ /* Also clear if we move out of text area in same window. */
+ || (!NILP (dpyinfo->mouse_face_window)
+ && !NILP (window)
+ && part != ON_TEXT
+ && part != ON_MODE_LINE
+ && part != ON_HEADER_LINE))
clear_mouse_face (dpyinfo);
/* Not on a window -> return. */
{
int yb = window_text_bottom_y (w);
struct glyph_row *row;
- int cursor_cleared_p;
+ int cursor_cleared_p, phys_cursor_on_p;
struct glyph_row *first_overlapping_row, *last_overlapping_row;
TRACE ((stderr, "expose_window (%d, %d, %d, %d)\n",
else
cursor_cleared_p = 0;
+ /* If the row containing the cursor extends face to end of line,
+ then expose_area might overwrite the cursor outside the
+ rectangle and thus notice_overwritten_cursor might clear
+ w->phys_cursor_on_p. We remember the original value and
+ check later if it is changed. */
+ phys_cursor_on_p = w->phys_cursor_on_p;
+
/* Update lines intersecting rectangle R. */
first_overlapping_row = last_overlapping_row = NULL;
for (row = w->current_matrix->rows;
x_draw_vertical_border (w);
/* Turn the cursor on again. */
- if (cursor_cleared_p)
+ if (cursor_cleared_p
+ || (phys_cursor_on_p && !w->phys_cursor_on_p))
update_window_cursor (w, 1);
}
}
mini_w = XWINDOW (minibuf_window);
root_window = FRAME_ROOT_WINDOW (XFRAME (WINDOW_FRAME (mini_w)));
+ echo_area_window = minibuf_window;
if (!noninteractive)
{
HCoop / bpt / emacs.git / blobdiff