to be skipped before anything is displayed. */
Bytind bi_start_col_enabled;
int start_col_xoffset; /* Number of pixels that still need to
- be skipped. This is used for
- horizontal scrolling of glyphs, where we want
- to be able to scroll over part of the glyph. */
+ be skipped. This is used for
+ horizontal scrolling of glyphs, where we want
+ to be able to scroll over part of the glyph. */
int hscroll_glyph_width_adjust; /* how much the width of the hscroll
glyph differs from space_width (w).
struct extent_fragment *ef;
face_index findex;
- /* The height of a pixmap may either be predetermined if the user
- has set a baseline value, or it may be dependent on whatever the
- line ascent and descent values end up being, based just on font
- information. In the first case we can immediately update the
- values, thus their inclusion here. In the last case we cannot
- determine the actual contribution to the line height until we
- have finished laying out all text on the line. Thus we propagate
- the max height of such pixmaps and do a final calculation after
- all text has been added to the line. */
+ /* The height of a pixmap may either be predetermined if the user has set a
+ baseline value, or it may be dependent on whatever the line ascent and
+ descent values end up being, based just on font and pixmap-ascent
+ information. In the first case we can immediately update the values, thus
+ their inclusion here. In the last case we cannot determine the actual
+ contribution to the line height until we have finished laying out all text
+ on the line. Thus we propagate the max height of such pixmaps and do a
+ final calculation (in calculate_baseline()) after all text has been added
+ to the line. */
int new_ascent;
int new_descent;
int max_pixmap_height;
+ int need_baseline_computation;
+ int end_glyph_width; /* Well, it is the kitchen sink after all ... */
Lisp_Object result_str; /* String where we put the result of
generating a formatted string in the modeline. */
PROP_STRING,
PROP_CHAR,
PROP_MINIBUF_PROMPT,
- PROP_BLANK
+ PROP_BLANK,
+ PROP_GLYPH
};
/* Data that should be propagated to the next line. Either a single
- Emchar or a string of Bufbyte's.
+ Emchar, a string of Bufbyte's or a glyph.
The actual data that is propagated ends up as a Dynarr of these
blocks.
+ prop_blocks are used to indicate that data that was supposed to go
+ on the previous line couldn't actually be displayed. Generally this
+ shouldn't happen if we are clipping the end of lines. If we are
+ wrapping then we need to display the propagation data before moving
+ on. Its questionable whether we should wrap or clip glyphs in this
+ instance. Most e-lisp relies on clipping so we preserve this
+ behavior.
+
#### It's unclean that both Emchars and Bufbytes are here.
*/
int width;
face_index findex;
} p_blank;
+
+ struct
+ {
+ /* Not used as yet, but could be used to wrap rather than clip glyphs. */
+ int width;
+ Lisp_Object glyph;
+ } p_glyph;
+
} data;
};
static void update_line_start_cache (struct window *w, Bufpos from, Bufpos to,
Bufpos point, int no_regen);
static int point_visible (struct window *w, Bufpos point, int type);
+static void calculate_yoffset (struct display_line *dl,
+ struct display_block *fixup);
+static void calculate_baseline (pos_data *data);
/* This used to be 10 but 30 seems to give much better performance. */
#define INIT_MAX_PREEMPTS 30
/* #### probably temporary */
-int cache_adjustment;
+Fixnum cache_adjustment;
/* This holds a string representing the text corresponding to a single
modeline % spec. */
static int preemption_count;
/* Minimum pixel height of clipped bottom display line. */
-int vertical_clip;
+Fixnum vertical_clip;
/* Minimum visible pixel width of clipped glyphs at right margin. */
-int horizontal_clip;
+Fixnum horizontal_clip;
/* Nonzero means reading single-character input with prompt
so put cursor on minibuffer after the prompt. */
int toolbar_changed;
int toolbar_changed_set;
+/* Nonzero if some frame has changed the layout of internal elements
+ (gutters or toolbars). */
+int frame_layout_changed;
+
/* non-nil if any gutter has changed */
int gutter_changed;
int gutter_changed_set;
/* The number of lines scroll a window by when point leaves the window; if
it is <=0 then point is centered in the window */
-int scroll_step;
+Fixnum scroll_step;
/* Scroll up to this many lines, to bring point back on screen. */
-int scroll_conservatively;
+Fixnum scroll_conservatively;
/* Marker for where to display an arrow on top of the buffer text. */
Lisp_Object Voverlay_arrow_position;
Lisp_Object Qpre_redisplay_hook, Qpost_redisplay_hook;
#endif /* INHIBIT_REDISPLAY_HOOKS */
-static int last_display_warning_tick, display_warning_tick;
+static Fixnum last_display_warning_tick;
+static Fixnum display_warning_tick;
Lisp_Object Qdisplay_warning_buffer;
int inhibit_warning_display;
/***************************************************************************/
static int
-redisplay_text_width_emchar_string (struct window *w, int findex,
- Emchar *str, Charcount len)
+redisplay_text_width_charc_string (struct window *w, int findex,
+ Charc *str, Charcount len)
{
- unsigned char charsets[NUM_LEADING_BYTES];
+ Charset_ID charsets[NUM_LEADING_BYTES];
Lisp_Object window;
- find_charsets_in_emchar_string (charsets, str, len);
+ find_charsets_in_charc_string (charsets, str, len);
XSETWINDOW (window, w);
ensure_face_cachel_complete (WINDOW_FACE_CACHEL (w, findex), window,
charsets);
WINDOW_FACE_CACHEL (w, findex), str, len));
}
-static Emchar_dynarr *rtw_emchar_dynarr;
+static Charc_dynarr *rtw_charc_dynarr;
int
redisplay_text_width_string (struct window *w, int findex,
Bufbyte *nonreloc, Lisp_Object reloc,
Bytecount offset, Bytecount len)
{
- if (!rtw_emchar_dynarr)
- rtw_emchar_dynarr = Dynarr_new (Emchar);
- Dynarr_reset (rtw_emchar_dynarr);
+ if (!rtw_charc_dynarr)
+ rtw_charc_dynarr = Dynarr_new (Charc);
+ Dynarr_reset (rtw_charc_dynarr);
fixup_internal_substring (nonreloc, reloc, offset, &len);
if (STRINGP (reloc))
nonreloc = XSTRING_DATA (reloc);
- convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
- return redisplay_text_width_emchar_string
- (w, findex, Dynarr_atp (rtw_emchar_dynarr, 0),
- Dynarr_length (rtw_emchar_dynarr));
+ convert_bufbyte_string_into_charc_dynarr (nonreloc, len, rtw_charc_dynarr);
+ return redisplay_text_width_charc_string
+ (w, findex, Dynarr_atp (rtw_charc_dynarr, 0),
+ Dynarr_length (rtw_charc_dynarr));
}
int
Bufbyte *nonreloc, Lisp_Object reloc,
Bytecount offset, Bytecount len)
{
- unsigned char charsets[NUM_LEADING_BYTES];
+ Charset_ID charsets[NUM_LEADING_BYTES];
Lisp_Object frame;
struct face_cachel cachel;
- if (!rtw_emchar_dynarr)
- rtw_emchar_dynarr = Dynarr_new (Emchar);
- Dynarr_reset (rtw_emchar_dynarr);
+ if (!rtw_charc_dynarr)
+ rtw_charc_dynarr = Dynarr_new (Charc);
+ Dynarr_reset (rtw_charc_dynarr);
fixup_internal_substring (nonreloc, reloc, offset, &len);
if (STRINGP (reloc))
nonreloc = XSTRING_DATA (reloc);
- convert_bufbyte_string_into_emchar_dynarr (nonreloc, len, rtw_emchar_dynarr);
+ convert_bufbyte_string_into_charc_dynarr (nonreloc, len, rtw_charc_dynarr);
find_charsets_in_bufbyte_string (charsets, nonreloc, len);
reset_face_cachel (&cachel);
cachel.face = face;
XSETFRAME (frame, f);
ensure_face_cachel_complete (&cachel, frame, charsets);
return DEVMETH (XDEVICE (FRAME_DEVICE (f)),
- text_width, (f, &cachel, Dynarr_atp (rtw_emchar_dynarr, 0),
- Dynarr_length (rtw_emchar_dynarr)));
+ text_width, (f, &cachel, Dynarr_atp (rtw_charc_dynarr, 0),
+ Dynarr_length (rtw_charc_dynarr)));
}
/* Return the display block from DL of the given TYPE. A display line
return bounds;
}
+/* This takes a display_block and its containing line and corrects the yoffset
+ of each glyph in the block to cater for the ascent of the line as a
+ whole. Must be called *after* the line-ascent is known! */
+
+static void
+calculate_yoffset (struct display_line *dl, struct display_block *fixup)
+{
+ int i;
+ for (i=0; i<Dynarr_length (fixup->runes); i++)
+ {
+ struct rune *r = Dynarr_atp (fixup->runes,i);
+ if (r->type == RUNE_DGLYPH)
+ {
+ if (r->object.dglyph.ascent < dl->ascent)
+ r->object.dglyph.yoffset = dl->ascent - r->object.dglyph.ascent +
+ r->object.dglyph.descent;
+ }
+ }
+}
+
+/* Calculate the textual baseline (the ascent and descent values for the
+ display_line as a whole).
+
+ If the baseline is completely blank, or contains no manually positioned
+ glyphs, then the textual baseline is simply the baseline of the default font.
+ (The `contains no manually positioned glyphs' part is actually done for
+ us by `add_emchar_rune'.)
+
+ If the baseline contains pixmaps, and they're all manually positioned, then
+ the textual baseline location is constrained that way, and we need do no
+ work.
+
+ If the baseline contains pixmaps, and at least one is automatically
+ positioned, then the textual ascent is the largest ascent on the line, and
+ the textual descent is the largest descent (which is how things are set up at
+ entry to this function anyway): except that if the max_ascent + max_descent
+ is too small for the height of the line (say you've adjusted the baseline of
+ a short glyph, and there's a tall one next to it), then take the ascent and
+ descent for the line individually from the largest of the explicitly set
+ ascent/descent, and the rescaled ascent/descent of the default font, scaled
+ such that the largest glyph will fit.
+
+ This means that if you have a short glyph (but taller than the default
+ font's descent) forced right under the baseline, and a really tall
+ automatically positioned glyph, that the descent for the line is just big
+ enough for the manually positioned short glyph, and the tall one uses as
+ much of that space as the default font would were it as tall as the tall
+ glyph; but that the ascent is big enough for the tall glyph to fit.
+
+ This behaviour means that under no circumstances will changing the baseline
+ of a short glyph cause a tall glyph to move around; nor will it move the
+ textual baseline more than necessary. (Changing a tall glyph's baseline
+ might move the text's baseline arbitrarily, of course.) */
+
+static void
+calculate_baseline (pos_data *data)
+{
+ /* Blank line: baseline is default font's baseline. */
+
+ if (!data->new_ascent && !data->new_descent)
+ {
+ /* We've got a blank line so initialize these values from the default
+ face. */
+ default_face_font_info (data->window, &data->new_ascent,
+ &data->new_descent, 0, 0, 0);
+ }
+
+ /* No automatically positioned glyphs? Return at once. */
+ if (!data->need_baseline_computation)
+ return;
+
+ /* Is the tallest glyph on the line automatically positioned?
+ If it's manually positioned, or it's automatically positioned
+ and there's enough room for it anyway, we need do no more work. */
+ if (data->max_pixmap_height > data->new_ascent + data->new_descent)
+ {
+ int default_font_ascent, default_font_descent, default_font_height;
+ int scaled_default_font_ascent, scaled_default_font_descent;
+
+ default_face_font_info (data->window, &default_font_ascent,
+ &default_font_descent, &default_font_height,
+ 0, 0);
+
+ scaled_default_font_ascent = data->max_pixmap_height *
+ default_font_ascent / default_font_height;
+
+ data->new_ascent = max (data->new_ascent, scaled_default_font_ascent);
+
+ /* The ascent may have expanded now. Do we still need to grow the descent,
+ or are things big enough?
+
+ The +1 caters for the baseline row itself. */
+ if (data->max_pixmap_height > data->new_ascent + data->new_descent)
+ {
+ scaled_default_font_descent = (data->max_pixmap_height *
+ default_font_descent / default_font_height) + 1;
+
+ data->new_descent = max (data->new_descent, scaled_default_font_descent);
+ }
+ }
+}
+
/* Given a display line and a starting position, ensure that the
contents of the display line accurately represent the visual
representation of the buffer contents starting from the given
return retval;
}
-/* Adds a character rune to a display block. If there is not enough
- room to fit the rune on the display block (as determined by the
- MAX_PIXPOS) then it adds nothing and returns ADD_FAILED. */
+/* Adds a character rune to a display block. If there is not enough room
+ to fit the rune on the display block (as determined by the MAX_PIXPOS)
+ then it adds nothing and returns ADD_FAILED. If
+ NO_CONTRIBUTE_TO_LINE_HEIGHT is non-zero, don't allow the char's height
+ to affect the total line height. (See add_intbyte_string_runes()). */
static prop_block_dynarr *
-add_emchar_rune (pos_data *data)
+add_emchar_rune_1 (pos_data *data, int no_contribute_to_line_height)
{
struct rune rb, *crb;
int width, local;
+ Charc char_glyph;
if (data->start_col)
{
if (data->ch == '\n')
{
+ char_glyph = ASCII_TO_CHARC ('\n');
data->font_is_bogus = 0;
/* Cheesy end-of-line pseudo-character. */
width = data->blank_width;
}
else
{
- Lisp_Object charset = CHAR_CHARSET (data->ch);
+ Lisp_Object charset;
+
+ char_glyph = CHAR_TO_CHARC (data->ch);
+ charset = CHARC_CHARSET (char_glyph);
if (!EQ (charset, data->last_charset) ||
data->findex != data->last_findex)
{
data->last_char_width = fi->width;
else
data->last_char_width = -1;
- data->new_ascent = max (data->new_ascent, (int) fi->ascent);
- data->new_descent = max (data->new_descent, (int) fi->descent);
+
+ if (!no_contribute_to_line_height)
+ {
+ data->new_ascent = max (data->new_ascent, (int) fi->ascent);
+ data->new_descent = max (data->new_descent, (int) fi->descent);
+ }
+
data->last_charset = charset;
data->last_findex = data->findex;
}
if (width < 0)
{
/* bummer. Proportional fonts. */
- width = redisplay_text_width_emchar_string (XWINDOW (data->window),
- data->findex,
- &data->ch, 1);
+ width = redisplay_text_width_charc_string (XWINDOW (data->window),
+ data->findex,
+ &char_glyph, 1);
}
}
data->bi_bufpos);
else
crb->bufpos =
- bytecount_to_charcount (XSTRING_DATA (data->string), data->bi_bufpos);
+ bytecount_to_charcount (XSTRING_DATA (data->string),
+ data->bi_bufpos);
}
else if (data->is_modeline)
crb->bufpos = data->modeline_charpos;
/* Text but not in buffer */
crb->bufpos = 0;
crb->type = RUNE_CHAR;
- crb->object.chr.ch = data->font_is_bogus ? '~' : data->ch;
+ crb->object.cglyph = data->font_is_bogus
+ ? ASCII_TO_CHARC ('~')
+ : char_glyph;
crb->endpos = 0;
if (data->cursor_type == CURSOR_ON)
return NULL;
}
-/* Given a string C_STRING of length C_LENGTH, call add_emchar_rune
- for each character in the string. Propagate any left-over data
- unless NO_PROP is non-zero. */
-
+static prop_block_dynarr *
+add_emchar_rune (pos_data *data)
+{
+ return add_emchar_rune_1 (data, 0);
+}
+
+/* Given a string C_STRING of length C_LENGTH, call add_emchar_rune for
+ each character in the string. Propagate any left-over data unless
+ NO_PROP is non-zero. If NO_CONTRIBUTE_TO_LINE_HEIGHT is non-zero, don't
+ allow this character to increase the total height of the line. (This is
+ used when the character is part of a text glyph. In that case, the
+ glyph code itself adjusts the line height as necessary, depending on
+ whether glyph-contrib-p is true.) */
+
static prop_block_dynarr *
add_bufbyte_string_runes (pos_data *data, Bufbyte *c_string,
- Bytecount c_length, int no_prop)
+ Bytecount c_length, int no_prop,
+ int no_contribute_to_line_height)
{
Bufbyte *pos, *end = c_string + c_length;
prop_block_dynarr *prop;
for (pos = c_string; pos < end;)
{
+ Bufbyte *old_pos = pos;
+
data->ch = charptr_emchar (pos);
- prop = add_emchar_rune (data);
+ prop = add_emchar_rune_1 (data, no_contribute_to_line_height);
if (prop)
{
}
INC_CHARPTR (pos);
assert (pos <= end);
+ /* #### Duplicate code from add_string_to_fstring_db_runes
+ should we do more?*/
+ data->bytepos += pos - old_pos;
}
return NULL;
static prop_block_dynarr *
add_octal_runes (pos_data *data)
{
- prop_block_dynarr *prop, *add_failed;
+ prop_block_dynarr *add_failed, *prop = 0;
Emchar orig_char = data->ch;
unsigned int orig_cursor_type = data->cursor_type;
/* Initialize */
- prop = NULL;
add_failed = NULL;
if (data->start_col)
ADD_NEXT_OCTAL_RUNE_CHAR;
data->cursor_type = orig_cursor_type;
- return prop;
+ return NULL;
}
#undef ADD_NEXT_OCTAL_RUNE_CHAR
prop = add_bufbyte_string_runes (data,
XSTRING_DATA (entry),
XSTRING_LENGTH (entry),
- 0);
+ 0, 0);
}
else if (GLYPHP (entry))
{
}
}
}
- prop = add_bufbyte_string_runes (data, result, dst - result, 0);
+ prop = add_bufbyte_string_runes (data, result, dst - result, 0, 0);
}
}
}
break;
default:
- abort ();
+ ABORT ();
}
}
Lisp_Object face;
Lisp_Object instance;
face_index findex;
+ prop_block_dynarr *retval = 0;
if (cachel)
width = cachel->width;
if (data->start_col || data->start_col_xoffset)
{
- prop_block_dynarr *retval;
int glyph_char_width = width / space_width (w);
/* If we still have not fully scrolled horizontally after
if (data->pixpos + width > data->max_pixpos)
{
/* If this is the first object we are attempting to add to
- the line then we ignore the horizontal_clip threshold.
- Otherwise we will loop until the bottom of the window
- continually failing to add this glyph because it is wider
- than the window. We could alternatively just completely
- ignore the glyph and proceed from there but I think that
- this is a better solution. */
+ the line then we ignore the horizontal_clip threshold.
+ Otherwise we will loop until the bottom of the window
+ continually failing to add this glyph because it is wider
+ than the window. We could alternatively just completely
+ ignore the glyph and proceed from there but I think that
+ this is a better solution.
+
+ This does, however, create a different problem in that we
+ can end up adding the object to every single line, never
+ getting any further - for instance an extent with a long
+ start-glyph that covers multitple following
+ characters. */
if (Dynarr_length (data->db->runes)
&& data->max_pixpos - data->pixpos < horizontal_clip)
return ADD_FAILED;
- else
+ else {
+ struct prop_block pb;
+
+ /* We need to account for the width of the end-of-line
+ glyph if there is nothing more in the line to display,
+ since we will not display it in this instance. It seems
+ kind of gross doing it here, but otherwise we have to
+ search the runes in create_text_block(). */
+ if (data->ch == '\n')
+ data->max_pixpos += data->end_glyph_width;
width = data->max_pixpos - data->pixpos;
+ /* Add the glyph we are displaying, but clipping, to the
+ propagation data so that we don't try and do it
+ again. */
+ retval = Dynarr_new (prop_block);
+ pb.type = PROP_GLYPH;
+ pb.data.p_glyph.glyph = gb->glyph;
+ pb.data.p_glyph.width = width;
+ Dynarr_add (retval, pb);
+ }
}
if (cachel)
baseline = glyph_baseline (gb->glyph, data->window);
+ rb.object.dglyph.descent = 0; /* Gets reset lower down, if it is known. */
+
if (glyph_contrib_p (gb->glyph, data->window))
{
/* A pixmap that has not had a baseline explicitly set. Its
if (NILP (baseline))
{
int height = ascent + descent;
+ data->need_baseline_computation = 1;
data->max_pixmap_height = max (data->max_pixmap_height, height);
}
data->new_ascent = max (data->new_ascent, pix_ascent);
data->new_descent = max (data->new_descent, pix_descent);
+ data->max_pixmap_height = max (data->max_pixmap_height, height);
+
+ rb.object.dglyph.descent = pix_descent;
}
/* Otherwise something is screwed up. */
else
- abort ();
+ ABORT ();
}
face = glyph_face (gb->glyph, data->window);
if (!allow_cursor)
data->bi_bufpos = 0;
add_bufbyte_string_runes (data, XSTRING_DATA (string),
- XSTRING_LENGTH (string), 0);
+ XSTRING_LENGTH (string), 0, 1);
data->findex = orig_findex;
data->bi_bufpos = orig_bufpos;
data->bi_start_col_enabled = orig_start_col_enabled;
- return NULL;
+ return retval;
}
rb.findex = findex;
rb.object.dglyph.glyph = gb->glyph;
rb.object.dglyph.extent = gb->extent;
rb.object.dglyph.xoffset = xoffset;
+ rb.object.dglyph.ascent = ascent;
+ rb.object.dglyph.yoffset = 0; /* Until we know better, assume that it has
+ a normal (textual) baseline. */
if (allow_cursor)
{
Dynarr_add (data->db->runes, rb);
data->pixpos += width;
- return NULL;
+ return retval;
}
else
{
return NULL;
}
else
- abort (); /* there are no unknown types */
+ ABORT (); /* there are no unknown types */
}
- return NULL; /* shut up compiler */
+ return NULL;
}
/* Add all glyphs at position POS_TYPE that are contained in the given
is_surrogate_for_selected_frame (f));
int truncate_win = window_truncation_on (w);
- int end_glyph_width;
/* If the buffer's value of selective_display is an integer then
only lines that start with less than selective_display columns of
glyph. Save the width of the end glyph for later use. */
data.max_pixpos = dl->bounds.right_in;
if (truncate_win)
- end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
+ data.end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
else
- end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
- data.max_pixpos -= end_glyph_width;
+ data.end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
+ data.max_pixpos -= data.end_glyph_width;
if (cursor_in_echo_area && MINI_WINDOW_P (w) && echo_area_active (f))
{
/* Check for face changes. */
if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
{
+ Lisp_Object last_glyph = Qnil;
+
+ /* Deal with glyphs that we have already displayed. The
+ theory is that if we end up with a PROP_GLYPH in the
+ propagation data then we are clipping the glyph and there
+ can be no propagation data before that point. The theory
+ works because we always recalculate the extent-fragments
+ for propagated data, we never actually propagate the
+ fragments that still need to be displayed. */
+ if (*prop && Dynarr_atp (*prop, 0)->type == PROP_GLYPH)
+ {
+ last_glyph = Dynarr_atp (*prop, 0)->data.p_glyph.glyph;
+ Dynarr_free (*prop);
+ *prop = 0;
+ }
/* Now compute the face and begin/end-glyph information. */
data.findex =
/* Remember that the extent-fragment routines deal in Bytind's. */
- extent_fragment_update (w, data.ef, data.bi_bufpos);
+ extent_fragment_update (w, data.ef, data.bi_bufpos, last_glyph);
get_display_tables (w, data.findex, &face_dt, &window_dt);
}
/* If there is propagation data, then it represents the current
- buffer position being displayed. Add them and advance the
- position counter. This might also add the minibuffer
- prompt. */
+ buffer position being displayed. Add them and advance the
+ position counter. This might also add the minibuffer
+ prompt. */
else if (*prop)
{
dl->used_prop_data = 1;
here rather than doing them at the end of handling the
previous run so that glyphs at the beginning and end of
a line are handled correctly. */
- else if (Dynarr_length (data.ef->end_glyphs) > 0)
+ else if (Dynarr_length (data.ef->end_glyphs) > 0
+ || Dynarr_length (data.ef->begin_glyphs) > 0)
{
- *prop = add_glyph_runes (&data, END_GLYPHS);
- if (*prop)
- goto done;
- }
+ glyph_block_dynarr* tmpglyphs = 0;
+ /* #### I think this is safe, but could be wrong. */
+ data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
- /* If there are begin glyphs, add them to the line. */
- else if (Dynarr_length (data.ef->begin_glyphs) > 0)
- {
- *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
- if (*prop)
- goto done;
+ if (Dynarr_length (data.ef->end_glyphs) > 0)
+ {
+ *prop = add_glyph_runes (&data, END_GLYPHS);
+ tmpglyphs = data.ef->end_glyphs;
+ }
+
+ /* If there are begin glyphs, add them to the line. */
+ if (!*prop && Dynarr_length (data.ef->begin_glyphs) > 0)
+ {
+ *prop = add_glyph_runes (&data, BEGIN_GLYPHS);
+ tmpglyphs = data.ef->begin_glyphs;
+ }
+
+ if (*prop)
+ {
+ /* If we just clipped a glyph and we are at the end of a
+ line and there are more glyphs to display then do
+ appropriate processing to not get a continuation
+ glyph. */
+ if (*prop != ADD_FAILED
+ && Dynarr_atp (*prop, 0)->type == PROP_GLYPH
+ && data.ch == '\n')
+ {
+ /* If there are no more glyphs then do the normal
+ processing.
+
+ #### This doesn't actually work if the same glyph is
+ present more than once in the block. To solve
+ this we would have to carry the index around
+ which might be problematic since the fragment is
+ recalculated for each line. */
+ if (EQ (Dynarr_end (tmpglyphs)->glyph,
+ Dynarr_atp (*prop, 0)->data.p_glyph.glyph))
+ {
+ Dynarr_free (*prop);
+ *prop = 0;
+ }
+ else {
+ data.blank_width = DEVMETH (d, eol_cursor_width, ());
+ add_emchar_rune (&data); /* discard prop data. */
+ goto done;
+ }
+ }
+ else
+ goto done;
+ }
}
/* If at end-of-buffer, we've already processed begin and
/* We aren't going to be adding an end glyph so give its
space back in order to make sure that the cursor can
fit. */
- data.max_pixpos += end_glyph_width;
+ data.max_pixpos += data.end_glyph_width;
if (selective > 0
&& (bi_spaces_at_point
/* We won't be adding a truncation or continuation glyph
so give up the room allocated for them. */
- data.max_pixpos += end_glyph_width;
+ data.max_pixpos += data.end_glyph_width;
if (!NILP (b->selective_display_ellipses))
{
/* This had better be a newline but doing it this way
we'll see obvious incorrect results if it isn't. No
- need to abort here. */
+ need to ABORT here. */
data.ch = BI_BUF_FETCH_CHAR (b, data.bi_bufpos);
goto done;
for the next newline. We also add the end-of-line glyph which
we know will fit because we adjusted the right border before
we starting laying out the line. */
- data.max_pixpos += end_glyph_width;
+ data.max_pixpos += data.end_glyph_width;
data.findex = DEFAULT_INDEX;
gb.extent = Qnil;
{
struct rune *rb = Dynarr_atp (db->runes, elt);
- if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
+ if ((rb->type == RUNE_CHAR && CHARC_ASCII_EQ (rb->object.cglyph, ' '))
|| rb->type == RUNE_BLANK)
{
dl->bounds.left_white += rb->width;
{
struct rune *rb = Dynarr_atp (db->runes, elt);
- if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
- && isspace (rb->object.chr.ch))
+ if (!(rb->type == RUNE_CHAR && CHARC_IS_SPACE (rb->object.cglyph))
&& !rb->type == RUNE_BLANK)
{
dl->bounds.right_white = rb->xpos + rb->width;
else
db->end_pos = dl->bounds.right_white;
- /* update line height parameters */
- if (!data.new_ascent && !data.new_descent)
- {
- /* We've got a blank line so initialize these values from the default
- face. */
- default_face_font_info (data.window, &data.new_ascent,
- &data.new_descent, 0, 0, 0);
- }
-
- if (data.max_pixmap_height)
- {
- int height = data.new_ascent + data.new_descent;
- int pix_ascent, pix_descent;
-
- pix_descent = data.max_pixmap_height * data.new_descent / height;
- pix_ascent = data.max_pixmap_height - pix_descent;
-
- data.new_ascent = max (data.new_ascent, pix_ascent);
- data.new_descent = max (data.new_descent, pix_descent);
- }
+ calculate_baseline (&data);
dl->ascent = data.new_ascent;
dl->descent = data.new_descent;
dl->descent = descent;
}
+ calculate_yoffset (dl, db);
+
dl->cursor_elt = data.cursor_x;
/* #### lossage lossage lossage! Fix this shit! */
if (data.bi_bufpos > BI_BUF_ZV (b))
(&data,
XSTRING_DATA (Voverlay_arrow_string),
XSTRING_LENGTH (Voverlay_arrow_string),
- 1);
+ 1, 0);
}
else if (GLYPHP (Voverlay_arrow_string))
{
add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, 0);
}
- if (data.max_pixmap_height)
- {
- int height = data.new_ascent + data.new_descent;
- int pix_ascent, pix_descent;
-
- pix_descent = data.max_pixmap_height * data.new_descent / height;
- pix_ascent = data.max_pixmap_height - pix_descent;
-
- data.new_ascent = max (data.new_ascent, pix_ascent);
- data.new_descent = max (data.new_descent, pix_descent);
- }
+ calculate_baseline (&data);
dl->ascent = data.new_ascent;
dl->descent = data.new_descent;
data.db->start_pos = dl->bounds.left_in;
data.db->end_pos = data.pixpos;
+ calculate_yoffset (dl, data.db);
+
return data.pixpos - dl->bounds.left_in;
}
struct glyph_block *gb = Dynarr_atp (gbd, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (gb->active &&
((side == LEFT_GLYPHS &&
(reverse ? elt-- : elt++);
}
- if (data.max_pixmap_height)
- {
- int height = data.new_ascent + data.new_descent;
- int pix_ascent, pix_descent;
-
- pix_descent = data.max_pixmap_height * data.new_descent / height;
- pix_ascent = data.max_pixmap_height - pix_descent;
- data.new_ascent = max (data.new_ascent, pix_ascent);
- data.new_descent = max (data.new_descent, pix_descent);
- }
+ calculate_baseline (&data);
dl->ascent = data.new_ascent;
dl->descent = data.new_descent;
+ calculate_yoffset (dl, data.db);
+
return data.pixpos;
}
struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_begin_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
{
struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
GL_INSIDE_MARGIN)
struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
GL_INSIDE_MARGIN)
struct glyph_block *gb = Dynarr_atp (dl->left_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_begin_glyph_layout (XEXTENT (gb->extent)) ==
GL_OUTSIDE_MARGIN)
struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_WHITESPACE)
{
struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
{
struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_INSIDE_MARGIN)
{
struct glyph_block *gb = Dynarr_atp (dl->right_glyphs, elt);
if (NILP (gb->extent))
- abort (); /* these should have been handled in add_glyph_rune */
+ ABORT (); /* these should have been handled in add_glyph_rune */
if (extent_end_glyph_layout (XEXTENT (gb->extent)) == GL_OUTSIDE_MARGIN)
{
if (Dynarr_atp (db->runes, elt)->type == RUNE_CHAR)
{
len += (set_charptr_emchar
- (strdata + len, Dynarr_atp (db->runes,
- elt)->object.chr.ch));
+ (strdata + len,
+ CHARC_TO_CHAR (Dynarr_atp (db->runes,
+ elt)->object.cglyph)));
}
}
\f
/***************************************************************************/
-/* */
-/* displayable string routines */
-/* */
+/* */
+/* displayable string routines */
+/* */
/***************************************************************************/
/* Given a position for a string in a window, ensure that the given
pos_data data;
int truncate_win = b ? window_truncation_on (w) : 0;
- int end_glyph_width = 0;
/* We're going to ditch selective display for static text, it's an
FSF thing and invisible extents are the way to go here.
/* Set the right boundary adjusting it to take into account any end
glyph. Save the width of the end glyph for later use. */
data.max_pixpos = dl->bounds.right_in;
-#if 0
- if (truncate_win)
- end_glyph_width = GLYPH_CACHEL_WIDTH (w, TRUN_GLYPH_INDEX);
- else
- end_glyph_width = GLYPH_CACHEL_WIDTH (w, CONT_GLYPH_INDEX);
-#endif
- data.max_pixpos -= end_glyph_width;
+ data.max_pixpos -= data.end_glyph_width;
data.cursor_type = NO_CURSOR;
data.cursor_x = -1;
/* Check for face changes. */
if (initial || (!no_more_frags && data.bi_bufpos == data.ef->end))
{
+ Lisp_Object last_glyph = Qnil;
+ /* Deal with clipped glyphs that we have already displayed. */
+ if (*prop && Dynarr_atp (*prop, 0)->type == PROP_GLYPH)
+ {
+ last_glyph = Dynarr_atp (*prop, 0)->data.p_glyph.glyph;
+ Dynarr_free (*prop);
+ *prop = 0;
+ }
/* Now compute the face and begin/end-glyph information. */
data.findex =
/* Remember that the extent-fragment routines deal in Bytind's. */
- extent_fragment_update (w, data.ef, data.bi_bufpos);
+ extent_fragment_update (w, data.ef, data.bi_bufpos, last_glyph);
/* This is somewhat cheesy but the alternative is to
propagate default_face into extent_fragment_update. */
if (data.findex == DEFAULT_INDEX)
goto done;
}
- /* #### What if we we're dealing with a display table? */
+ /* #### What if we're dealing with a display table? */
if (data.start_col)
data.start_col--;
else if (data.bi_bufpos == bi_string_zv)
goto done;
else if (data.bi_bufpos < 0)
- /* #### urk urk urk! Aborts are not very fun! Fix this please! */
+ /* #### urk urk urk! ABORTs are not very fun! Fix this please! */
data.bi_bufpos = 0;
else
INC_CHARBYTIND (string_data (s), data.bi_bufpos);
a line are handled correctly. */
else if (Dynarr_length (data.ef->end_glyphs) > 0)
{
+ data.ch = string_char (s, data.bi_bufpos);
*prop = add_glyph_runes (&data, END_GLYPHS);
- if (*prop)
+
+ if (*prop) {
goto done;
+ }
}
/* If there are begin glyphs, add them to the line. */
else if (Dynarr_length (data.ef->begin_glyphs) > 0)
{
+ data.ch = string_char (s, data.bi_bufpos);
*prop = add_glyph_runes (&data, BEGIN_GLYPHS);
- if (*prop)
+
+ if (*prop) {
goto done;
+ }
}
/* If at end-of-buffer, we've already processed begin and
/* We aren't going to be adding an end glyph so give its
space back in order to make sure that the cursor can
fit. */
- data.max_pixpos += end_glyph_width;
+ data.max_pixpos += data.end_glyph_width;
goto done;
}
*prop = add_blank_rune (&data, w, char_tab_width);
/* add_blank_rune is only supposed to be called with
- sizes guaranteed to fit in the available space. */
+ sizes guaranteed to fit in the available space. */
assert (!(*prop));
if (prop_width)
}
}
-done:
+ done:
/* Determine the starting point of the next line if we did not hit the
end of the buffer. */
for the next newline. We also add the end-of-line glyph which
we know will fit because we adjusted the right border before
we starting laying out the line. */
- data.max_pixpos += end_glyph_width;
+ data.max_pixpos += data.end_glyph_width;
data.findex = default_face;
gb.extent = Qnil;
cachel = GLYPH_CACHEL (w, CONT_GLYPH_INDEX);
}
- if (end_glyph_width)
+ if (data.end_glyph_width)
add_glyph_rune (&data, &gb, BEGIN_GLYPHS, 0, cachel);
if (truncate_win && data.bi_bufpos == bi_string_zv)
{
struct rune *rb = Dynarr_atp (db->runes, elt);
- if ((rb->type == RUNE_CHAR && rb->object.chr.ch == ' ')
+ if ((rb->type == RUNE_CHAR && CHARC_ASCII_EQ (rb->object.cglyph, ' '))
|| rb->type == RUNE_BLANK)
{
dl->bounds.left_white += rb->width;
{
struct rune *rb = Dynarr_atp (db->runes, elt);
- if (!(rb->type == RUNE_CHAR && rb->object.chr.ch < 0x100
- && isspace (rb->object.chr.ch))
+ if (!(rb->type == RUNE_CHAR && CHARC_IS_SPACE (rb->object.cglyph))
&& !rb->type == RUNE_BLANK)
{
dl->bounds.right_white = rb->xpos + rb->width;
else
db->end_pos = dl->bounds.right_white;
- /* update line height parameters */
- if (!data.new_ascent && !data.new_descent)
- {
- /* We've got a blank line so initialize these values from the default
- face. */
- default_face_font_info (data.window, &data.new_ascent,
- &data.new_descent, 0, 0, 0);
- }
-
- if (data.max_pixmap_height)
- {
- int height = data.new_ascent + data.new_descent;
- int pix_ascent, pix_descent;
-
- pix_descent = data.max_pixmap_height * data.new_descent / height;
- pix_ascent = data.max_pixmap_height - pix_descent;
-
- data.new_ascent = max (data.new_ascent, pix_ascent);
- data.new_descent = max (data.new_descent, pix_descent);
- }
+ calculate_baseline (&data);
dl->ascent = data.new_ascent;
dl->descent = data.new_descent;
dl->descent = descent;
}
+ calculate_yoffset (dl, db);
+
dl->cursor_elt = data.cursor_x;
/* #### lossage lossage lossage! Fix this shit! */
if (data.bi_bufpos > bi_string_zv)
/* The lines had better exist by this point. */
if (!(dla = window_display_lines (w, type)))
- abort ();
+ ABORT ();
Dynarr_reset (dla);
w->max_line_len = 0;
dla_start = 0; \
} \
else \
- abort (); /* structs differ */ \
+ ABORT (); /* structs differ */ \
\
dla_end = Dynarr_length (cdla) - 1; \
} \
{
struct device *d = XDEVICE (f->device);
- if (preemption_check)
+ if (preemption_check
+ && !DEVICE_IMPL_FLAG (d, XDEVIMPF_DONT_PREEMPT_REDISPLAY))
{
/* The preemption check itself takes a lot of time,
so normally don't do it here. We do it if called
/* The menubar, toolbar, and icon updates must be done before
hold_frame_size_changes is called and we are officially
'in_display'. They may eval lisp code which may call Fsignal.
- If in_display is set Fsignal will abort. */
+ If in_display is set Fsignal will ABORT. */
#ifdef HAVE_MENUBARS
/* Update the menubar. It is done first since it could change
update_frame_menubars (f);
#endif /* HAVE_MENUBARS */
#ifdef HAVE_TOOLBARS
- /* Update the toolbars. */
- update_frame_toolbars (f);
+ /* Update the toolbars geometry. We don't update the toolbars
+ themselves at this point since the space they are trying to
+ occupy may currently by occupied by gutter elements. Instead we
+ update the geometry, then update the gutter geometry, then update
+ the gutters - which will cause mapped windows to be repositioned
+ - and finally update the toolbars. */
+ update_frame_toolbars_geometry (f);
#endif /* HAVE_TOOLBARS */
/* Gutter update proper has to be done inside display when no frame
size changes can occur, thus we separately update the gutter
We need to remove them.
If Fsignal() is called during this critical section, we
- will abort().
+ will ABORT().
If garbage collection is called during this critical section,
- we simply return. #### We should abort instead.
+ we simply return. #### We should ABORT instead.
#### If a frame-size change does occur we should probably
actually be preempting redisplay. */
update_frame_title (f);
+#ifdef HAVE_TOOLBARS
+ /* Finally update the toolbars. It seems its possible to get in a
+ cycle between updating the gutter and the toolbars. Basically we
+ want to end up with both being up-to-date and this doesn't seem
+ possible in a single pass. */
+ update_frame_toolbars (f);
+#endif /* HAVE_TOOLBARS */
+
CLASS_RESET_CHANGED_FLAGS (f);
f->window_face_cache_reset = 0;
f->echo_area_garbaged = 0;
redisplay_device (struct device *d, int automatic)
{
Lisp_Object frame, frmcons;
- int preempted = 0;
int size_change_failed = 0;
struct frame *f;
- if (automatic
- && (MAYBE_INT_DEVMETH (d, device_implementation_flags, ())
- & XDEVIMPF_NO_AUTO_REDISPLAY))
+ if (automatic && DEVICE_IMPL_FLAG (d, XDEVIMPF_NO_AUTO_REDISPLAY))
return 0;
if (DEVICE_STREAM_P (d)) /* nothing to do */
return 0;
/* It is possible that redisplay has been called before the
- device is fully initialized. If so then continue with the
- next device. */
+ device is fully initialized, or that the console implementation
+ allows frameless devices. If so then continue with the next
+ device. */
if (NILP (DEVICE_SELECTED_FRAME (d)))
return 0;
- REDISPLAY_PREEMPTION_CHECK;
- if (preempted)
- return 1;
+ if (!DEVICE_IMPL_FLAG (d, XDEVIMPF_DONT_PREEMPT_REDISPLAY))
+ {
+ int preempted;
+ REDISPLAY_PREEMPTION_CHECK;
+ if (preempted)
+ return 1;
+ }
/* Always do the selected frame first. */
frame = DEVICE_SELECTED_FRAME (d);
{
if (CLASS_REDISPLAY_FLAGS_CHANGEDP(f))
{
- preempted = redisplay_frame (f, 0);
+ int preempted = redisplay_frame (f, 0);
+ if (preempted)
+ return 1;
}
- if (preempted)
- return 1;
-
/* If the frame redisplay did not get preempted, then this flag
should have gotten set to 0. It might be possible for that
not to happen if a size change event were to occur at an odd
{
if (CLASS_REDISPLAY_FLAGS_CHANGEDP (f))
{
- preempted = redisplay_frame (f, 0);
+ int preempted = redisplay_frame (f, 0);
+ if (preempted)
+ return 1;
}
- if (preempted)
- return 1;
-
if (f->size_change_pending)
size_change_failed = 1;
}
FRAME_LOOP_NO_BREAK (frmcons, devcons, concons)
{
struct frame *f = XFRAME (XCAR (frmcons));
- update_frame_window_mirror (f);
mark_window_mirror (f->root_mirror);
mark_gutters (f);
}
{
struct buffer *b = XBUFFER (w->buffer);
line_start_cache_dynarr *cache = w->line_start_cache;
- unsigned int top, bottom, pos;
+ unsigned int top, bottom;
+ EMACS_INT pos;
validate_line_start_cache (w);
w->line_cache_validation_override++;
int win_char_height = window_char_height (w, 1);
/* Occasionally we get here with a 0 height
- window. find_next_newline_no_quit will abort if we pass it a
+ window. find_next_newline_no_quit will ABORT if we pass it a
count of 0 so handle that case. */
if (!win_char_height)
win_char_height = 1;
while (1)
{
- unsigned int new_pos;
+ EMACS_INT new_pos;
Bufpos start, end;
pos = (bottom + top + 1) >> 1;
else if (point < start)
top = pos - 1;
else
- abort ();
+ ABORT ();
new_pos = (bottom + top + 1) >> 1;
if (pos == new_pos)
}
else if (past_end
|| (rb->type == RUNE_CHAR
- && rb->object.chr.ch == '\n'))
+ && CHARC_ASCII_EQ (rb->object.cglyph, '\n')))
{
(*row)--;
/* At this point we may have glyphs in the right
}
#endif /* HAVE_X_WINDOWS */
+#ifdef HAVE_GTK
+ if (!strcmp (display_use, "gtk"))
+ {
+ Vwindow_system = Qgtk;
+ Vinitial_window_system = Qgtk;
+ return;
+ }
+#endif
+
#ifdef HAVE_MS_WINDOWS
if (!strcmp (display_use, "mswindows"))
{
maybe a caret cursor, etc. */
DEFVAR_LISP ("bar-cursor", &Vbar_cursor /*
-Use vertical bar cursor if non-nil. If t width is 1 pixel, otherwise 2.
+*Use vertical bar cursor if non-nil. If t width is 1 pixel, otherwise 2.
*/ );
Vbar_cursor = Qnil;
projects / chise / xemacs-chise.git.1 / blobdiff