/* 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, 2010
- Free Software Foundation, Inc.
+
+Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ 2010 Free Software Foundation, Inc.
This file is part of GNU Emacs.
leftmost character with special glyphs, which will display as,
well, empty. On text terminals, these special glyphs are simply
blank characters. On graphics terminals, there's a single stretch
- glyph with suitably computed width. Both the blanks and the
+ glyph of a suitably computed width. Both the blanks and the
stretch glyph are given the face of the background of the line.
This way, the terminal-specific back-end can still draw the glyphs
left to right, even for R2L lines.
+ Bidirectional display and character compositions
+
+ Some scripts cannot be displayed by drawing each character
+ individually, because adjacent characters change each other's shape
+ on display. For example, Arabic and Indic scripts belong to this
+ category.
+
+ Emacs display supports this by providing "character compositions",
+ most of which is implemented in composite.c. During the buffer
+ scan that delivers characters to PRODUCE_GLYPHS, if the next
+ character to be delivered is a composed character, the iteration
+ calls composition_reseat_it and next_element_from_composition. If
+ they succeed to compose the character with one or more of the
+ following characters, the whole sequence of characters that where
+ composed is recorded in the `struct composition_it' object that is
+ part of the buffer iterator. The composed sequence could produce
+ one or more font glyphs (called "grapheme clusters") on the screen.
+ Each of these grapheme clusters is then delivered to PRODUCE_GLYPHS
+ in the direction corresponding to the current bidi scan direction
+ (recorded in the scan_dir member of the `struct bidi_it' object
+ that is part of the buffer iterator). In particular, if the bidi
+ iterator currently scans the buffer backwards, the grapheme
+ clusters are delivered back to front. This reorders the grapheme
+ clusters as appropriate for the current bidi context. Note that
+ this means that the grapheme clusters are always stored in the
+ LGSTRING object (see composite.c) in the logical order.
+
+ Moving an iterator in bidirectional text
+ without producing glyphs
+
Note one important detail mentioned above: that the bidi reordering
engine, driven by the iterator, produces characters in R2L rows
starting at the character that will be the rightmost on display.
#ifdef HAVE_WINDOW_SYSTEM
#define CLEAR_IMAGE_CACHE_COUNT 101
static int clear_image_cache_count;
+
+/* Null glyph slice */
+static struct glyph_slice null_glyph_slice = { 0, 0, 0, 0 };
#endif
/* Non-zero while redisplay_internal is in progress. */
Lisp_Object previous_help_echo_string;
-/* Null glyph slice */
-
-static struct glyph_slice null_glyph_slice = { 0, 0, 0, 0 };
-
/* Platform-independent portion of hourglass implementation. */
/* Non-zero means we're allowed to display a hourglass pointer. */
/* Number of seconds to wait before displaying an hourglass cursor. */
Lisp_Object Vhourglass_delay;
+/* Name of the face used to display glyphless characters. */
+Lisp_Object Qglyphless_char;
+
+/* Char-table to control the display of glyphless characters. */
+Lisp_Object Vglyphless_char_display;
+
+/* Symbol for the purpose of Vglyphless_char_display. */
+Lisp_Object Qglyphless_char_display;
+
+/* Method symbols for Vglyphless_char_display. */
+static Lisp_Object Qhex_code, Qempty_box, Qthin_space, Qzero_width;
+
+/* Default pixel width of `thin-space' display method. */
+#define THIN_SPACE_WIDTH 1
+
/* Default number of seconds to wait before displaying an hourglass
cursor. */
#define DEFAULT_HOURGLASS_DELAY 1
EMACS_INT, EMACS_INT);
static void store_mode_line_noprop_char (char);
static int store_mode_line_noprop (const unsigned char *, int, int);
-static void x_consider_frame_title (Lisp_Object);
static void handle_stop (struct it *);
static void handle_stop_backwards (struct it *, EMACS_INT);
-static int tool_bar_lines_needed (struct frame *, int *);
static int single_display_spec_intangible_p (Lisp_Object);
static void ensure_echo_area_buffers (void);
static Lisp_Object unwind_with_echo_area_buffer (Lisp_Object);
#ifdef HAVE_WINDOW_SYSTEM
+static void x_consider_frame_title (Lisp_Object);
+static int tool_bar_lines_needed (struct frame *, int *);
static void update_tool_bar (struct frame *, int);
static void build_desired_tool_bar_string (struct frame *f);
static int redisplay_tool_bar (struct frame *);
int, int, int);
-
#endif /* HAVE_WINDOW_SYSTEM */
+static int coords_in_mouse_face_p (struct window *, int, int);
+
+
\f
/***********************************************************************
Window display dimensions
}
-/* 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 (const unsigned char *str, int *len)
if (STRING_MULTIBYTE (string))
{
- EMACS_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)
{
- EMACS_INT rest = strlen (s);
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;
}
}
-#ifdef HAVE_WINDOW_SYSTEM
-
/* Find the glyph under window-relative coordinates X/Y in window W.
Consider only glyphs from buffer text, i.e. no glyphs from overlay
strings. Return in *HPOS and *VPOS the row and column number of
return glyph;
}
-
/* EXPORT:
Convert frame-relative x/y to coordinates relative to window W.
Takes pseudo-windows into account. */
}
}
+#ifdef HAVE_WINDOW_SYSTEM
+
/* EXPORT:
Return in RECTS[] at most N clipping rectangles for glyph string S.
Return the number of stored rectangles. */
frame pixel coordinates X/Y on frame F. */
if (!f->glyphs_initialized_p
- || (window = window_from_coordinates (f, gx, gy, &part, &x, &y, 0),
+ || (window = window_from_coordinates (f, gx, gy, &part, 0),
NILP (window)))
{
width = FRAME_SMALLEST_CHAR_WIDTH (f);
width = WINDOW_FRAME_COLUMN_WIDTH (w);
height = WINDOW_FRAME_LINE_HEIGHT (w);
+ x = window_relative_x_coord (w, part, gx);
+ y = gy - WINDOW_TOP_EDGE_Y (w);
+
r = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
end_row = MATRIX_BOTTOM_TEXT_ROW (w->current_matrix, w);
&& 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)->string)))
+/* Lookup the char-table Vglyphless_char_display for character C (-1
+ if we want information for no-font case), and return the display
+ method symbol. By side-effect, update it->what and
+ it->glyphless_method. This function is called from
+ get_next_display_element for each character element, and from
+ x_produce_glyphs when no suitable font was found. */
+
+Lisp_Object
+lookup_glyphless_char_display (int c, struct it *it)
+{
+ Lisp_Object glyphless_method = Qnil;
+
+ if (CHAR_TABLE_P (Vglyphless_char_display)
+ && CHAR_TABLE_EXTRA_SLOTS (XCHAR_TABLE (Vglyphless_char_display)) >= 1)
+ glyphless_method = (c >= 0
+ ? CHAR_TABLE_REF (Vglyphless_char_display, c)
+ : XCHAR_TABLE (Vglyphless_char_display)->extras[0]);
+ retry:
+ if (NILP (glyphless_method))
+ {
+ if (c >= 0)
+ /* The default is to display the character by a proper font. */
+ return Qnil;
+ /* The default for the no-font case is to display an empty box. */
+ glyphless_method = Qempty_box;
+ }
+ if (EQ (glyphless_method, Qzero_width))
+ {
+ if (c >= 0)
+ return glyphless_method;
+ /* This method can't be used for the no-font case. */
+ glyphless_method = Qempty_box;
+ }
+ if (EQ (glyphless_method, Qthin_space))
+ it->glyphless_method = GLYPHLESS_DISPLAY_THIN_SPACE;
+ else if (EQ (glyphless_method, Qempty_box))
+ it->glyphless_method = GLYPHLESS_DISPLAY_EMPTY_BOX;
+ else if (EQ (glyphless_method, Qhex_code))
+ it->glyphless_method = GLYPHLESS_DISPLAY_HEX_CODE;
+ else if (STRINGP (glyphless_method))
+ it->glyphless_method = GLYPHLESS_DISPLAY_ACRONYM;
+ else
+ {
+ /* Invalid value. We use the default method. */
+ glyphless_method = Qnil;
+ goto retry;
+ }
+ it->what = IT_GLYPHLESS;
+ return glyphless_method;
+}
+
/* Load IT's display element fields with information about the next
display element from the current position of IT. Value is zero if
end of buffer (or C string) is reached. */
static unsigned last_escape_glyph_face_id = (1 << FACE_ID_BITS);
static int last_escape_glyph_merged_face_id = 0;
+struct frame *last_glyphless_glyph_frame = NULL;
+unsigned last_glyphless_glyph_face_id = (1 << FACE_ID_BITS);
+int last_glyphless_glyph_merged_face_id = 0;
+
int
get_next_display_element (struct it *it)
{
goto get_next;
}
+ if (! NILP (lookup_glyphless_char_display (c, it)))
+ {
+ if (it->what == IT_GLYPHLESS)
+ goto done;
+ /* Don't display this character. */
+ set_iterator_to_next (it, 0);
+ goto get_next;
+ }
+
if (! ASCII_CHAR_P (c) && ! NILP (Vnobreak_char_display))
nbsp_or_shy = (c == 0xA0 ? char_is_nbsp
: c == 0xAD ? char_is_soft_hyphen
}
#endif
+ done:
/* Is this character the last one of a run of characters with
box? If yes, set IT->end_of_box_run_p to 1. */
if (it->face_box_p
Fset_buffer_multibyte (message_enable_multibyte ? Qt : Qnil);
current_buffer->truncate_lines = message_truncate_lines ? Qt : Qnil;
+ if (!NILP (current_buffer->bidi_display_reordering))
+ current_buffer->bidi_paragraph_direction = Qleft_to_right;
/* Insert new message at BEG. */
TEMP_SET_PT_BOTH (BEG, BEG_BYTE);
get_tool_bar_item (struct frame *f, int x, int y, struct glyph **glyph,
int *hpos, int *vpos, int *prop_idx)
{
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
struct window *w = XWINDOW (f->tool_bar_window);
int area;
return -1;
/* Is mouse on the highlighted item? */
- if (EQ (f->tool_bar_window, dpyinfo->mouse_face_window)
- && *vpos >= dpyinfo->mouse_face_beg_row
- && *vpos <= dpyinfo->mouse_face_end_row
- && (*vpos > dpyinfo->mouse_face_beg_row
- || *hpos >= dpyinfo->mouse_face_beg_col)
- && (*vpos < dpyinfo->mouse_face_end_row
- || *hpos < dpyinfo->mouse_face_end_col
- || dpyinfo->mouse_face_past_end))
+ if (EQ (f->tool_bar_window, hlinfo->mouse_face_window)
+ && *vpos >= hlinfo->mouse_face_beg_row
+ && *vpos <= hlinfo->mouse_face_end_row
+ && (*vpos > hlinfo->mouse_face_beg_row
+ || *hpos >= hlinfo->mouse_face_beg_col)
+ && (*vpos < hlinfo->mouse_face_end_row
+ || *hpos < hlinfo->mouse_face_end_col
+ || hlinfo->mouse_face_past_end))
return 0;
return 1;
handle_tool_bar_click (struct frame *f, int x, int y, int down_p,
unsigned int modifiers)
{
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
struct window *w = XWINDOW (f->tool_bar_window);
int hpos, vpos, prop_idx;
struct glyph *glyph;
if (down_p)
{
/* Show item in pressed state. */
- show_mouse_face (dpyinfo, DRAW_IMAGE_SUNKEN);
- dpyinfo->mouse_face_image_state = DRAW_IMAGE_SUNKEN;
+ show_mouse_face (hlinfo, DRAW_IMAGE_SUNKEN);
+ hlinfo->mouse_face_image_state = DRAW_IMAGE_SUNKEN;
last_tool_bar_item = prop_idx;
}
else
EVENT_INIT (event);
/* Show item in released state. */
- show_mouse_face (dpyinfo, DRAW_IMAGE_RAISED);
- dpyinfo->mouse_face_image_state = DRAW_IMAGE_RAISED;
+ show_mouse_face (hlinfo, DRAW_IMAGE_RAISED);
+ hlinfo->mouse_face_image_state = DRAW_IMAGE_RAISED;
key = AREF (f->tool_bar_items, prop_idx + TOOL_BAR_ITEM_KEY);
Lisp_Object window = f->tool_bar_window;
struct window *w = XWINDOW (window);
Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
int hpos, vpos;
struct glyph *glyph;
struct glyph_row *row;
values when mouse moves outside of the frame. */
if (x <= 0 || y <= 0)
{
- clear_mouse_face (dpyinfo);
+ clear_mouse_face (hlinfo);
return;
}
if (rc < 0)
{
/* Not on tool-bar item. */
- clear_mouse_face (dpyinfo);
+ clear_mouse_face (hlinfo);
return;
}
else if (rc == 0)
/* On same tool-bar item as before. */
goto set_help_echo;
- clear_mouse_face (dpyinfo);
+ clear_mouse_face (hlinfo);
/* Mouse is down, but on different tool-bar item? */
mouse_down_p = (dpyinfo->grabbed
&& last_tool_bar_item != prop_idx)
return;
- dpyinfo->mouse_face_image_state = DRAW_NORMAL_TEXT;
+ hlinfo->mouse_face_image_state = DRAW_NORMAL_TEXT;
draw = mouse_down_p ? DRAW_IMAGE_SUNKEN : DRAW_IMAGE_RAISED;
/* If tool-bar item is not enabled, don't highlight it. */
x += row->glyphs[TEXT_AREA][i].pixel_width;
/* Record this as the current active region. */
- dpyinfo->mouse_face_beg_col = hpos;
- dpyinfo->mouse_face_beg_row = vpos;
- dpyinfo->mouse_face_beg_x = x;
- dpyinfo->mouse_face_beg_y = row->y;
- dpyinfo->mouse_face_past_end = 0;
-
- dpyinfo->mouse_face_end_col = hpos + 1;
- dpyinfo->mouse_face_end_row = vpos;
- dpyinfo->mouse_face_end_x = x + glyph->pixel_width;
- dpyinfo->mouse_face_end_y = row->y;
- dpyinfo->mouse_face_window = window;
- dpyinfo->mouse_face_face_id = TOOL_BAR_FACE_ID;
+ hlinfo->mouse_face_beg_col = hpos;
+ hlinfo->mouse_face_beg_row = vpos;
+ hlinfo->mouse_face_beg_x = x;
+ hlinfo->mouse_face_beg_y = row->y;
+ hlinfo->mouse_face_past_end = 0;
+
+ hlinfo->mouse_face_end_col = hpos + 1;
+ hlinfo->mouse_face_end_row = vpos;
+ hlinfo->mouse_face_end_x = x + glyph->pixel_width;
+ hlinfo->mouse_face_end_y = row->y;
+ hlinfo->mouse_face_window = window;
+ hlinfo->mouse_face_face_id = TOOL_BAR_FACE_ID;
/* Display it as active. */
- show_mouse_face (dpyinfo, draw);
- dpyinfo->mouse_face_image_state = draw;
+ show_mouse_face (hlinfo, draw);
+ hlinfo->mouse_face_image_state = draw;
}
set_help_echo:
reconsider_clip_changes (w, current_buffer);
last_escape_glyph_frame = NULL;
last_escape_glyph_face_id = (1 << FACE_ID_BITS);
+ last_glyphless_glyph_frame = NULL;
+ last_glyphless_glyph_face_id = (1 << FACE_ID_BITS);
/* If new fonts have been loaded that make a glyph matrix adjustment
necessary, do it. */
&& BUFFERP (glyph->object) && glyph->charpos == pt_old)
&& bpos_covered < pt_old)
{
+ /* An empty line has a single glyph whose OBJECT is zero and
+ whose CHARPOS is the position of a newline on that line.
+ Note that on a TTY, there are more glyphs after that, which
+ were produced by extend_face_to_end_of_line, but their
+ CHARPOS is zero or negative. */
+ int empty_line_p =
+ (row->reversed_p ? glyph > glyphs_end : glyph < glyphs_end)
+ && INTEGERP (glyph->object) && glyph->charpos > 0;
+
if (row->ends_in_ellipsis_p && pos_after == last_pos)
{
EMACS_INT ellipsis_pos;
|| (row->truncated_on_left_p && pt_old < bpos_min)
|| (row->truncated_on_right_p && pt_old > bpos_max)
/* Zero-width characters produce no glyphs. */
- || ((row->reversed_p
- ? glyph_after > glyphs_end
- : glyph_after < glyphs_end)
- && eabs (glyph_after - glyph_before) == 1))
+ || (!string_seen
+ && !empty_line_p
+ && (row->reversed_p
+ ? glyph_after > glyphs_end
+ : glyph_after < glyphs_end)))
{
cursor = glyph_after;
x = -1;
cursor on that character's glyph. */
EMACS_INT strpos = glyph->charpos;
- cursor = glyph;
- for (glyph += incr;
+ if (tem)
+ cursor = glyph;
+ for ( ;
(row->reversed_p ? glyph > stop : glyph < stop)
&& EQ (glyph->object, str);
glyph += incr)
cursor = glyph;
break;
}
- if (glyph->charpos < strpos)
+ if (tem && glyph->charpos < strpos)
{
strpos = glyph->charpos;
cursor = glyph;
}
/* This string is not what we want; skip all of the
glyphs that came from it. */
- do
- glyph += incr;
while ((row->reversed_p ? glyph > stop : glyph < stop)
- && EQ (glyph->object, str));
+ && EQ (glyph->object, str))
+ glyph += incr;
}
else
glyph += incr;
/* 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;
{
struct glyph *g;
- if (NILP (XBUFFER (w->buffer)->bidi_display_reordering))
+ if (NILP (XBUFFER (w->buffer)->bidi_display_reordering)
+ || (!best_row && !row->continued_p))
return row;
/* In bidi-reordered rows, there could be several rows
- occluding point. We need to find the one which fits
+ occluding point, all of them belonging to the same
+ continued line. We need to find the row which fits
CHARPOS the best. */
for (g = row->glyphs[TEXT_AREA];
g < row->glyphs[TEXT_AREA] + row->used[TEXT_AREA];
{
mindif = eabs (g->charpos - charpos);
best_row = row;
+ /* Exact match always wins. */
+ if (mindif == 0)
+ return best_row;
}
}
}
}
- else if (best_row)
+ else if (best_row && !row->continued_p)
return best_row;
++row;
}
+ (WINDOW_WANTS_HEADER_LINE_P (w) ? 1 : 0)
+ window_internal_height (w));
+#if defined (HAVE_GPM) || defined (MSDOS)
+ x_clear_window_mouse_face (w);
+#endif
/* Perform the operation on the screen. */
if (dvpos > 0)
{
}
+/* Fill glyph string S from a sequence glyphs for glyphless characters.
+ See the comment of fill_glyph_string for arguments.
+ Value is the index of the first glyph not in S. */
+
+
+static int
+fill_glyphless_glyph_string (struct glyph_string *s, int face_id,
+ int start, int end, int overlaps)
+{
+ struct glyph *glyph, *last;
+ int voffset;
+
+ xassert (s->first_glyph->type == GLYPHLESS_GLYPH);
+ s->for_overlaps = overlaps;
+ glyph = s->row->glyphs[s->area] + start;
+ last = s->row->glyphs[s->area] + end;
+ voffset = glyph->voffset;
+ s->face = FACE_FROM_ID (s->f, face_id);
+ s->font = s->face->font;
+ s->nchars = 1;
+ s->width = glyph->pixel_width;
+ glyph++;
+ while (glyph < last
+ && glyph->type == GLYPHLESS_GLYPH
+ && glyph->voffset == voffset
+ && glyph->face_id == face_id)
+ {
+ s->nchars++;
+ s->width += glyph->pixel_width;
+ glyph++;
+ }
+ s->ybase += voffset;
+ return glyph - s->row->glyphs[s->area];
+}
+
+
/* Fill glyph string S from a sequence of character glyphs.
FACE_ID is the face id of the string. START is the index of the
} while (0)
+/* Add a glyph string for a sequence of glyphless character's glyphs
+ to the list of strings between HEAD and TAIL. The meanings of
+ arguments are the same as those of BUILD_CHAR_GLYPH_STRINGS. */
+
+#define BUILD_GLYPHLESS_GLYPH_STRING(START, END, HEAD, TAIL, HL, X, LAST_X) \
+ do \
+ { \
+ int face_id; \
+ XChar2b *char2b; \
+ \
+ face_id = (row)->glyphs[area][START].face_id; \
+ \
+ s = (struct glyph_string *) alloca (sizeof *s); \
+ INIT_GLYPH_STRING (s, NULL, w, row, area, START, HL); \
+ append_glyph_string (&HEAD, &TAIL, s); \
+ s->x = (X); \
+ START = fill_glyphless_glyph_string (s, face_id, START, END, \
+ overlaps); \
+ } \
+ while (0)
+
+
/* Build a list of glyph strings between HEAD and TAIL for the glyphs
of AREA of glyph row ROW on window W between indices START and END.
HL overrides the face for drawing glyph strings, e.g. it is
BUILD_CHAR_GLYPH_STRINGS (START, END, HEAD, TAIL, \
HL, X, LAST_X); \
break; \
- \
+ \
case COMPOSITE_GLYPH: \
if (first_glyph->u.cmp.automatic) \
BUILD_GSTRING_GLYPH_STRING (START, END, HEAD, TAIL, \
BUILD_COMPOSITE_GLYPH_STRING (START, END, HEAD, TAIL, \
HL, X, LAST_X); \
break; \
- \
+ \
case STRETCH_GLYPH: \
BUILD_STRETCH_GLYPH_STRING (START, END, HEAD, TAIL, \
HL, X, LAST_X); \
break; \
- \
+ \
case IMAGE_GLYPH: \
BUILD_IMAGE_GLYPH_STRING (START, END, HEAD, TAIL, \
HL, X, LAST_X); \
break; \
- \
+ \
+ case GLYPHLESS_GLYPH: \
+ BUILD_GLYPHLESS_GLYPH_STRING (START, END, HEAD, TAIL, \
+ HL, X, LAST_X); \
+ break; \
+ \
default: \
abort (); \
} \
- \
+ \
if (s) \
{ \
set_glyph_string_background_width (s, START, LAST_X); \
if (head && !overlaps && row->contains_overlapping_glyphs_p)
{
struct glyph_string *h, *t;
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
int mouse_beg_col, mouse_end_col, check_mouse_face = 0;
int dummy_x = 0;
{
struct glyph_row *mouse_beg_row, *mouse_end_row;
- mouse_beg_row = MATRIX_ROW (w->current_matrix, dpyinfo->mouse_face_beg_row);
- mouse_end_row = MATRIX_ROW (w->current_matrix, dpyinfo->mouse_face_end_row);
+ mouse_beg_row = MATRIX_ROW (w->current_matrix, hlinfo->mouse_face_beg_row);
+ mouse_end_row = MATRIX_ROW (w->current_matrix, hlinfo->mouse_face_end_row);
if (row >= mouse_beg_row && row <= mouse_end_row)
{
check_mouse_face = 1;
mouse_beg_col = (row == mouse_beg_row)
- ? dpyinfo->mouse_face_beg_col : 0;
+ ? hlinfo->mouse_face_beg_col : 0;
mouse_end_col = (row == mouse_end_row)
- ? dpyinfo->mouse_face_end_col
+ ? hlinfo->mouse_face_end_col
: row->used[TEXT_AREA];
}
}
}
+/* Append a glyph for a glyphless character to IT->glyph_row. FACE_ID
+ is a face ID to be used for the glyph. FOR_NO_FONT is nonzero if
+ and only if this is for a character for which no font was found.
+
+ If the display method (it->glyphless_method) is
+ GLYPHLESS_DISPLAY_ACRONYM or GLYPHLESS_DISPLAY_HEX_CODE, LEN is a
+ length of the acronym or the hexadecimal string, UPPER_XOFF and
+ UPPER_YOFF are pixel offsets for the upper part of the string,
+ LOWER_XOFF and LOWER_YOFF are for the lower part.
+
+ For the other display methods, LEN through LOWER_YOFF are zero. */
+
+static void
+append_glyphless_glyph (struct it *it, int face_id, int for_no_font, int len,
+ short upper_xoff, short upper_yoff,
+ short lower_xoff, short lower_yoff)
+{
+ struct glyph *glyph;
+ enum glyph_row_area area = it->area;
+
+ glyph = it->glyph_row->glyphs[area] + it->glyph_row->used[area];
+ if (glyph < it->glyph_row->glyphs[area + 1])
+ {
+ /* If the glyph row is reversed, we need to prepend the glyph
+ rather than append it. */
+ if (it->glyph_row->reversed_p && area == TEXT_AREA)
+ {
+ struct glyph *g;
+
+ /* Make room for the additional glyph. */
+ for (g = glyph - 1; g >= it->glyph_row->glyphs[area]; g--)
+ g[1] = *g;
+ glyph = it->glyph_row->glyphs[area];
+ }
+ glyph->charpos = CHARPOS (it->position);
+ glyph->object = it->object;
+ glyph->pixel_width = it->pixel_width;
+ glyph->ascent = it->ascent;
+ glyph->descent = it->descent;
+ glyph->voffset = it->voffset;
+ glyph->type = GLYPHLESS_GLYPH;
+ glyph->u.glyphless.method = it->glyphless_method;
+ glyph->u.glyphless.for_no_font = for_no_font;
+ glyph->u.glyphless.len = len;
+ glyph->u.glyphless.ch = it->c;
+ glyph->slice.glyphless.upper_xoff = upper_xoff;
+ glyph->slice.glyphless.upper_yoff = upper_yoff;
+ glyph->slice.glyphless.lower_xoff = lower_xoff;
+ glyph->slice.glyphless.lower_yoff = lower_yoff;
+ glyph->avoid_cursor_p = it->avoid_cursor_p;
+ glyph->multibyte_p = it->multibyte_p;
+ glyph->left_box_line_p = it->start_of_box_run_p;
+ glyph->right_box_line_p = it->end_of_box_run_p;
+ glyph->overlaps_vertically_p = (it->phys_ascent > it->ascent
+ || it->phys_descent > it->descent);
+ glyph->padding_p = 0;
+ glyph->glyph_not_available_p = 0;
+ glyph->face_id = face_id;
+ glyph->font_type = FONT_TYPE_UNKNOWN;
+ if (it->bidi_p)
+ {
+ glyph->resolved_level = it->bidi_it.resolved_level;
+ if ((it->bidi_it.type & 7) != it->bidi_it.type)
+ abort ();
+ glyph->bidi_type = it->bidi_it.type;
+ }
+ ++it->glyph_row->used[area];
+ }
+ else
+ IT_EXPAND_MATRIX_WIDTH (it, area);
+}
+
+
+/* Produce a glyph for a glyphless character for iterator IT.
+ IT->glyphless_method specifies which method to use for displaying
+ the character. See the description of enum
+ glyphless_display_method in dispextern.h for the detail.
+
+ FOR_NO_FONT is nonzero if and only if this is for a character for
+ which no font was found. ACRONYM, if non-nil, is an acronym string
+ for the character. */
+
+static void
+produce_glyphless_glyph (struct it *it, int for_no_font, Lisp_Object acronym)
+{
+ int face_id;
+ struct face *face;
+ struct font *font;
+ int base_width, base_height, width, height;
+ short upper_xoff, upper_yoff, lower_xoff, lower_yoff;
+ int len;
+
+ /* Get the metrics of the base font. We always refer to the current
+ ASCII face. */
+ face = FACE_FROM_ID (it->f, it->face_id)->ascii_face;
+ font = face->font ? face->font : FRAME_FONT (it->f);
+ it->ascent = FONT_BASE (font) + font->baseline_offset;
+ it->descent = FONT_DESCENT (font) - font->baseline_offset;
+ base_height = it->ascent + it->descent;
+ base_width = font->average_width;
+
+ /* Get a face ID for the glyph by utilizing a cache (the same way as
+ doen for `escape-glyph' in get_next_display_element). */
+ if (it->f == last_glyphless_glyph_frame
+ && it->face_id == last_glyphless_glyph_face_id)
+ {
+ face_id = last_glyphless_glyph_merged_face_id;
+ }
+ else
+ {
+ /* Merge the `glyphless-char' face into the current face. */
+ face_id = merge_faces (it->f, Qglyphless_char, 0, it->face_id);
+ last_glyphless_glyph_frame = it->f;
+ last_glyphless_glyph_face_id = it->face_id;
+ last_glyphless_glyph_merged_face_id = face_id;
+ }
+
+ if (it->glyphless_method == GLYPHLESS_DISPLAY_THIN_SPACE)
+ {
+ it->pixel_width = THIN_SPACE_WIDTH;
+ len = 0;
+ upper_xoff = upper_yoff = lower_xoff = lower_yoff = 0;
+ }
+ else if (it->glyphless_method == GLYPHLESS_DISPLAY_EMPTY_BOX)
+ {
+ width = CHAR_WIDTH (it->c);
+ if (width == 0)
+ width = 1;
+ else if (width > 4)
+ width = 4;
+ it->pixel_width = base_width * width;
+ len = 0;
+ upper_xoff = upper_yoff = lower_xoff = lower_yoff = 0;
+ }
+ else
+ {
+ char buf[7], *str;
+ unsigned int code[6];
+ int upper_len;
+ int ascent, descent;
+ struct font_metrics metrics_upper, metrics_lower;
+
+ face = FACE_FROM_ID (it->f, face_id);
+ font = face->font ? face->font : FRAME_FONT (it->f);
+ PREPARE_FACE_FOR_DISPLAY (it->f, face);
+
+ if (it->glyphless_method == GLYPHLESS_DISPLAY_ACRONYM)
+ {
+ if (! STRINGP (acronym) && CHAR_TABLE_P (Vglyphless_char_display))
+ acronym = CHAR_TABLE_REF (Vglyphless_char_display, it->c);
+ str = STRINGP (acronym) ? (char *) SDATA (acronym) : "";
+ }
+ else
+ {
+ xassert (it->glyphless_method == GLYPHLESS_DISPLAY_HEX_CODE);
+ sprintf (buf, "%0*X", it->c < 0x10000 ? 4 : 6, it->c);
+ str = buf;
+ }
+ for (len = 0; str[len] && ASCII_BYTE_P (str[len]); len++)
+ code[len] = font->driver->encode_char (font, str[len]);
+ upper_len = (len + 1) / 2;
+ font->driver->text_extents (font, code, upper_len,
+ &metrics_upper);
+ font->driver->text_extents (font, code + upper_len, len - upper_len,
+ &metrics_lower);
+
+
+
+ /* +4 is for vertical bars of a box plus 1-pixel spaces at both side. */
+ width = max (metrics_upper.width, metrics_lower.width) + 4;
+ upper_xoff = upper_yoff = 2; /* the typical case */
+ if (base_width >= width)
+ {
+ /* Align the upper to the left, the lower to the right. */
+ it->pixel_width = base_width;
+ lower_xoff = base_width - 2 - metrics_lower.width;
+ }
+ else
+ {
+ /* Center the shorter one. */
+ it->pixel_width = width;
+ if (metrics_upper.width >= metrics_lower.width)
+ lower_xoff = (width - metrics_lower.width) / 2;
+ else
+ upper_xoff = (width - metrics_upper.width) / 2;
+ }
+
+ /* +5 is for horizontal bars of a box plus 1-pixel spaces at
+ top, bottom, and between upper and lower strings. */
+ height = (metrics_upper.ascent + metrics_upper.descent
+ + metrics_lower.ascent + metrics_lower.descent) + 5;
+ /* Center vertically.
+ H:base_height, D:base_descent
+ h:height, ld:lower_descent, la:lower_ascent, ud:upper_descent
+
+ ascent = - (D - H/2 - h/2 + 1); "+ 1" for rounding up
+ descent = D - H/2 + h/2;
+ lower_yoff = descent - 2 - ld;
+ upper_yoff = lower_yoff - la - 1 - ud; */
+ ascent = - (it->descent - (base_height + height + 1) / 2);
+ descent = it->descent - (base_height - height) / 2;
+ lower_yoff = descent - 2 - metrics_lower.descent;
+ upper_yoff = (lower_yoff - metrics_lower.ascent - 1
+ - metrics_upper.descent);
+ /* Don't make the height shorter than the base height. */
+ if (height > base_height)
+ {
+ it->ascent = ascent;
+ it->descent = descent;
+ }
+ }
+
+ it->phys_ascent = it->ascent;
+ it->phys_descent = it->descent;
+ if (it->glyph_row)
+ append_glyphless_glyph (it, face_id, for_no_font, len,
+ upper_xoff, upper_yoff,
+ lower_xoff, lower_yoff);
+ it->nglyphs = 1;
+ take_vertical_position_into_account (it);
+}
+
+
/* RIF:
Produce glyphs/get display metrics for the display element IT is
loaded with. See the description of struct it in dispextern.h
XChar2b char2b;
struct face *face = FACE_FROM_ID (it->f, it->face_id);
struct font *font = face->font;
- int font_not_found_p = font == NULL;
struct font_metrics *pcm = NULL;
int boff; /* baseline offset */
- if (font_not_found_p)
- {
- /* When no suitable font found, display an empty box based
- on the metrics of the font of the default face (or what
- remapped). */
- struct face *no_font_face
- = FACE_FROM_ID (it->f,
- NILP (Vface_remapping_alist) ? DEFAULT_FACE_ID
- : lookup_basic_face (it->f, DEFAULT_FACE_ID));
- font = no_font_face->font;
- boff = font->baseline_offset;
- }
- else
+ if (font == NULL)
{
- boff = font->baseline_offset;
- if (font->vertical_centering)
- boff = VCENTER_BASELINE_OFFSET (font, it->f) - boff;
+ /* When no suitable font is found, display this character by
+ the method specified in the first extra slot of
+ Vglyphless_char_display. */
+ Lisp_Object acronym = lookup_glyphless_char_display (-1, it);
+
+ xassert (it->what == IT_GLYPHLESS);
+ produce_glyphless_glyph (it, 1, STRINGP (acronym) ? acronym : Qnil);
+ goto done;
}
+ boff = font->baseline_offset;
+ if (font->vertical_centering)
+ boff = VCENTER_BASELINE_OFFSET (font, it->f) - boff;
+
if (it->char_to_display != '\n' && it->char_to_display != '\t')
{
int stretched_p;
it->descent = FONT_DESCENT (font) - boff;
}
- if (! font_not_found_p
- && get_char_glyph_code (it->char_to_display, font, &char2b))
+ if (get_char_glyph_code (it->char_to_display, font, &char2b))
{
pcm = get_per_char_metric (it->f, font, &char2b);
if (pcm->width == 0
if (it->glyph_row)
append_composite_glyph (it);
}
+ else if (it->what == IT_GLYPHLESS)
+ produce_glyphless_glyph (it, 0, Qnil);
else if (it->what == IT_IMAGE)
produce_image_glyph (it);
else if (it->what == IT_STRETCH)
produce_stretch_glyph (it);
+ done:
/* Accumulate dimensions. Note: can't assume that it->descent > 0
because this isn't true for images with `:ascent 100'. */
xassert (it->ascent >= 0 && it->descent >= 0);
}
+#ifdef HAVE_WINDOW_SYSTEM
+
/* Return the cursor we want to be displayed in window W. Return
width of bar/hbar cursor through WIDTH arg. Return with
ACTIVE_CURSOR arg set to 1 if cursor in window W is `active'
/* Detect a nonselected window or nonselected frame. */
else if (w != XWINDOW (f->selected_window)
-#ifdef HAVE_WINDOW_SYSTEM
- || f != FRAME_X_DISPLAY_INFO (f)->x_highlight_frame
-#endif
- )
+ || f != FRAME_X_DISPLAY_INFO (f)->x_highlight_frame)
{
*active_cursor = 0;
/* Use normal cursor if not blinked off. */
if (!w->cursor_off_p)
{
-#ifdef HAVE_WINDOW_SYSTEM
if (glyph != NULL && glyph->type == IMAGE_GLYPH)
{
if (cursor_type == FILLED_BOX_CURSOR)
cursor_type = HOLLOW_BOX_CURSOR;
}
}
-#endif
return cursor_type;
}
}
-#ifdef HAVE_WINDOW_SYSTEM
-
/* Notice when the text cursor of window W has been completely
overwritten by a drawing operation that outputs glyphs in AREA
starting at X0 and ending at X1 in the line starting at Y0 and
erase_phys_cursor (struct window *w)
{
struct frame *f = XFRAME (w->frame);
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
int hpos = w->phys_cursor.hpos;
int vpos = w->phys_cursor.vpos;
int mouse_face_here_p = 0;
/* If the cursor is in the mouse face area, redisplay that when
we clear the cursor. */
- if (! NILP (dpyinfo->mouse_face_window)
- && w == XWINDOW (dpyinfo->mouse_face_window)
- && (vpos > dpyinfo->mouse_face_beg_row
- || (vpos == dpyinfo->mouse_face_beg_row
- && hpos >= dpyinfo->mouse_face_beg_col))
- && (vpos < dpyinfo->mouse_face_end_row
- || (vpos == dpyinfo->mouse_face_end_row
- && hpos < dpyinfo->mouse_face_end_col))
+ if (! NILP (hlinfo->mouse_face_window)
+ && coords_in_mouse_face_p (w, hpos, vpos)
/* Don't redraw the cursor's spot in mouse face if it is at the
end of a line (on a newline). The cursor appears there, but
mouse highlighting does not. */
update_window_cursor (w, 0);
}
+#endif /* HAVE_WINDOW_SYSTEM */
+
+/* Implementation of draw_row_with_mouse_face for GUI sessions, GPM,
+ and MSDOS. */
+void
+draw_row_with_mouse_face (struct window *w, int start_x, struct glyph_row *row,
+ int start_hpos, int end_hpos,
+ enum draw_glyphs_face draw)
+{
+#ifdef HAVE_WINDOW_SYSTEM
+ if (FRAME_WINDOW_P (XFRAME (w->frame)))
+ {
+ draw_glyphs (w, start_x, row, TEXT_AREA, start_hpos, end_hpos, draw, 0);
+ return;
+ }
+#endif
+#if defined (HAVE_GPM) || defined (MSDOS)
+ tty_draw_row_with_mouse_face (w, row, start_hpos, end_hpos, draw);
+#endif
+}
/* EXPORT:
Display the active region described by mouse_face_* according to DRAW. */
void
-show_mouse_face (Display_Info *dpyinfo, enum draw_glyphs_face draw)
+show_mouse_face (Mouse_HLInfo *hlinfo, enum draw_glyphs_face draw)
{
- struct window *w = XWINDOW (dpyinfo->mouse_face_window);
+ struct window *w = XWINDOW (hlinfo->mouse_face_window);
struct frame *f = XFRAME (WINDOW_FRAME (w));
if (/* If window is in the process of being destroyed, don't bother
to do anything. */
w->current_matrix != NULL
/* Don't update mouse highlight if hidden */
- && (draw != DRAW_MOUSE_FACE || !dpyinfo->mouse_face_hidden)
+ && (draw != DRAW_MOUSE_FACE || !hlinfo->mouse_face_hidden)
/* Recognize when we are called to operate on rows that don't exist
anymore. This can happen when a window is split. */
- && dpyinfo->mouse_face_end_row < w->current_matrix->nrows)
+ && hlinfo->mouse_face_end_row < w->current_matrix->nrows)
{
int phys_cursor_on_p = w->phys_cursor_on_p;
struct glyph_row *row, *first, *last;
- first = MATRIX_ROW (w->current_matrix, dpyinfo->mouse_face_beg_row);
- last = MATRIX_ROW (w->current_matrix, dpyinfo->mouse_face_end_row);
+ first = MATRIX_ROW (w->current_matrix, hlinfo->mouse_face_beg_row);
+ last = MATRIX_ROW (w->current_matrix, hlinfo->mouse_face_end_row);
for (row = first; row <= last && row->enabled_p; ++row)
{
/* For all but the first row, the highlight starts at column 0. */
if (row == first)
{
- start_hpos = dpyinfo->mouse_face_beg_col;
- start_x = dpyinfo->mouse_face_beg_x;
+ /* R2L rows have BEG and END in reversed order, but the
+ screen drawing geometry is always left to right. So
+ we need to mirror the beginning and end of the
+ highlighted area in R2L rows. */
+ if (!row->reversed_p)
+ {
+ start_hpos = hlinfo->mouse_face_beg_col;
+ start_x = hlinfo->mouse_face_beg_x;
+ }
+ else if (row == last)
+ {
+ start_hpos = hlinfo->mouse_face_end_col;
+ start_x = hlinfo->mouse_face_end_x;
+ }
+ else
+ {
+ start_hpos = 0;
+ start_x = 0;
+ }
+ }
+ else if (row->reversed_p && row == last)
+ {
+ start_hpos = hlinfo->mouse_face_end_col;
+ start_x = hlinfo->mouse_face_end_x;
}
else
{
}
if (row == last)
- end_hpos = dpyinfo->mouse_face_end_col;
+ {
+ if (!row->reversed_p)
+ end_hpos = hlinfo->mouse_face_end_col;
+ else if (row == first)
+ end_hpos = hlinfo->mouse_face_beg_col;
+ else
+ {
+ end_hpos = row->used[TEXT_AREA];
+ if (draw == DRAW_NORMAL_TEXT)
+ row->fill_line_p = 1; /* Clear to end of line */
+ }
+ }
+ else if (row->reversed_p && row == first)
+ end_hpos = hlinfo->mouse_face_beg_col;
else
{
end_hpos = row->used[TEXT_AREA];
if (end_hpos > start_hpos)
{
- draw_glyphs (w, start_x, row, TEXT_AREA,
- start_hpos, end_hpos,
- draw, 0);
+ draw_row_with_mouse_face (w, start_x, row,
+ start_hpos, end_hpos, draw);
row->mouse_face_p
= draw == DRAW_MOUSE_FACE || draw == DRAW_IMAGE_RAISED;
}
}
+#ifdef HAVE_WINDOW_SYSTEM
/* When we've written over the cursor, arrange for it to
be displayed again. */
- if (phys_cursor_on_p && !w->phys_cursor_on_p)
+ if (FRAME_WINDOW_P (f)
+ && phys_cursor_on_p && !w->phys_cursor_on_p)
{
BLOCK_INPUT;
display_and_set_cursor (w, 1,
w->phys_cursor.x, w->phys_cursor.y);
UNBLOCK_INPUT;
}
+#endif /* HAVE_WINDOW_SYSTEM */
}
+#ifdef HAVE_WINDOW_SYSTEM
/* Change the mouse cursor. */
- if (draw == DRAW_NORMAL_TEXT && !EQ (dpyinfo->mouse_face_window, f->tool_bar_window))
- FRAME_RIF (f)->define_frame_cursor (f, FRAME_X_OUTPUT (f)->text_cursor);
- else if (draw == DRAW_MOUSE_FACE)
- FRAME_RIF (f)->define_frame_cursor (f, FRAME_X_OUTPUT (f)->hand_cursor);
- else
- FRAME_RIF (f)->define_frame_cursor (f, FRAME_X_OUTPUT (f)->nontext_cursor);
+ if (FRAME_WINDOW_P (f))
+ {
+ if (draw == DRAW_NORMAL_TEXT
+ && !EQ (hlinfo->mouse_face_window, f->tool_bar_window))
+ FRAME_RIF (f)->define_frame_cursor (f, FRAME_X_OUTPUT (f)->text_cursor);
+ else if (draw == DRAW_MOUSE_FACE)
+ FRAME_RIF (f)->define_frame_cursor (f, FRAME_X_OUTPUT (f)->hand_cursor);
+ else
+ FRAME_RIF (f)->define_frame_cursor (f, FRAME_X_OUTPUT (f)->nontext_cursor);
+ }
+#endif /* HAVE_WINDOW_SYSTEM */
}
/* EXPORT:
face was actually drawn unhighlighted. */
int
-clear_mouse_face (Display_Info *dpyinfo)
+clear_mouse_face (Mouse_HLInfo *hlinfo)
{
int cleared = 0;
- if (!dpyinfo->mouse_face_hidden && !NILP (dpyinfo->mouse_face_window))
+ if (!hlinfo->mouse_face_hidden && !NILP (hlinfo->mouse_face_window))
{
- show_mouse_face (dpyinfo, DRAW_NORMAL_TEXT);
+ show_mouse_face (hlinfo, DRAW_NORMAL_TEXT);
cleared = 1;
}
- dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
- dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
- dpyinfo->mouse_face_window = Qnil;
- dpyinfo->mouse_face_overlay = Qnil;
+ hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
+ hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
+ hlinfo->mouse_face_window = Qnil;
+ hlinfo->mouse_face_overlay = Qnil;
return cleared;
}
+/* Return non-zero if the coordinates HPOS and VPOS on windows W are
+ within the mouse face on that window. */
+static int
+coords_in_mouse_face_p (struct window *w, int hpos, int vpos)
+{
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (XFRAME (w->frame));
+
+ /* Quickly resolve the easy cases. */
+ if (!(WINDOWP (hlinfo->mouse_face_window)
+ && XWINDOW (hlinfo->mouse_face_window) == w))
+ return 0;
+ if (vpos < hlinfo->mouse_face_beg_row
+ || vpos > hlinfo->mouse_face_end_row)
+ return 0;
+ if (vpos > hlinfo->mouse_face_beg_row
+ && vpos < hlinfo->mouse_face_end_row)
+ return 1;
+
+ if (!MATRIX_ROW (w->current_matrix, vpos)->reversed_p)
+ {
+ if (hlinfo->mouse_face_beg_row == hlinfo->mouse_face_end_row)
+ {
+ if (hlinfo->mouse_face_beg_col <= hpos && hpos < hlinfo->mouse_face_end_col)
+ return 1;
+ }
+ else if ((vpos == hlinfo->mouse_face_beg_row
+ && hpos >= hlinfo->mouse_face_beg_col)
+ || (vpos == hlinfo->mouse_face_end_row
+ && hpos < hlinfo->mouse_face_end_col))
+ return 1;
+ }
+ else
+ {
+ if (hlinfo->mouse_face_beg_row == hlinfo->mouse_face_end_row)
+ {
+ if (hlinfo->mouse_face_end_col < hpos && hpos <= hlinfo->mouse_face_beg_col)
+ return 1;
+ }
+ else if ((vpos == hlinfo->mouse_face_beg_row
+ && hpos <= hlinfo->mouse_face_beg_col)
+ || (vpos == hlinfo->mouse_face_end_row
+ && hpos > hlinfo->mouse_face_end_col))
+ return 1;
+ }
+ return 0;
+}
+
/* EXPORT:
Non-zero if physical cursor of window W is within mouse face. */
int
cursor_in_mouse_face_p (struct window *w)
{
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (XFRAME (w->frame));
- int in_mouse_face = 0;
+ return coords_in_mouse_face_p (w, w->phys_cursor.hpos, w->phys_cursor.vpos);
+}
- if (WINDOWP (dpyinfo->mouse_face_window)
- && XWINDOW (dpyinfo->mouse_face_window) == w)
- {
- int hpos = w->phys_cursor.hpos;
- int vpos = w->phys_cursor.vpos;
- if (vpos >= dpyinfo->mouse_face_beg_row
- && vpos <= dpyinfo->mouse_face_end_row
- && (vpos > dpyinfo->mouse_face_beg_row
- || hpos >= dpyinfo->mouse_face_beg_col)
- && (vpos < dpyinfo->mouse_face_end_row
- || hpos < dpyinfo->mouse_face_end_col
- || dpyinfo->mouse_face_past_end))
- in_mouse_face = 1;
- }
+\f
+/* Find the glyph rows START_ROW and END_ROW of window W that display
+ characters between buffer positions START_CHARPOS and END_CHARPOS
+ (excluding END_CHARPOS). This is similar to row_containing_pos,
+ but is more accurate when bidi reordering makes buffer positions
+ change non-linearly with glyph rows. */
+static void
+rows_from_pos_range (struct window *w,
+ EMACS_INT start_charpos, EMACS_INT end_charpos,
+ struct glyph_row **start, struct glyph_row **end)
+{
+ struct glyph_row *first = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
+ int last_y = window_text_bottom_y (w);
+ struct glyph_row *row;
- return in_mouse_face;
-}
+ *start = NULL;
+ *end = NULL;
+
+ while (!first->enabled_p
+ && first < MATRIX_BOTTOM_TEXT_ROW (w->current_matrix, w))
+ first++;
+
+ /* Find the START row. */
+ for (row = first;
+ row->enabled_p && MATRIX_ROW_BOTTOM_Y (row) <= last_y;
+ row++)
+ {
+ /* A row can potentially be the START row if the range of the
+ characters it displays intersects the range
+ [START_CHARPOS..END_CHARPOS). */
+ if (! ((start_charpos < MATRIX_ROW_START_CHARPOS (row)
+ && end_charpos < MATRIX_ROW_START_CHARPOS (row))
+ /* See the commentary in row_containing_pos, for the
+ explanation of the complicated way to check whether
+ some position is beyond the end of the characters
+ displayed by a row. */
+ || ((start_charpos > MATRIX_ROW_END_CHARPOS (row)
+ || (start_charpos == MATRIX_ROW_END_CHARPOS (row)
+ && !row->ends_at_zv_p
+ && !MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (row)))
+ && (end_charpos > MATRIX_ROW_END_CHARPOS (row)
+ || (end_charpos == MATRIX_ROW_END_CHARPOS (row)
+ && !row->ends_at_zv_p
+ && !MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (row))))))
+ {
+ /* Found a candidate row. Now make sure at least one of the
+ glyphs it displays has a charpos from the range
+ [START_CHARPOS..END_CHARPOS).
+
+ This is not obvious because bidi reordering could make
+ buffer positions of a row be 1,2,3,102,101,100, and if we
+ want to highlight characters in [50..60), we don't want
+ this row, even though [50..60) does intersect [1..103),
+ the range of character positions given by the row's start
+ and end positions. */
+ struct glyph *g = row->glyphs[TEXT_AREA];
+ struct glyph *e = g + row->used[TEXT_AREA];
+
+ while (g < e)
+ {
+ if (BUFFERP (g->object)
+ && start_charpos <= g->charpos && g->charpos < end_charpos)
+ *start = row;
+ g++;
+ }
+ if (*start)
+ break;
+ }
+ }
+ /* Find the END row. */
+ if (!*start
+ /* If the last row is partially visible, start looking for END
+ from that row, instead of starting from FIRST. */
+ && !(row->enabled_p
+ && row->y < last_y && MATRIX_ROW_BOTTOM_Y (row) > last_y))
+ row = first;
+ for ( ; row->enabled_p && MATRIX_ROW_BOTTOM_Y (row) <= last_y; row++)
+ {
+ struct glyph_row *next = row + 1;
+
+ if (!next->enabled_p
+ || next >= MATRIX_BOTTOM_TEXT_ROW (w->current_matrix, w)
+ /* The first row >= START whose range of displayed characters
+ does NOT intersect the range [START_CHARPOS..END_CHARPOS]
+ is the row END + 1. */
+ || (start_charpos < MATRIX_ROW_START_CHARPOS (next)
+ && end_charpos < MATRIX_ROW_START_CHARPOS (next))
+ || ((start_charpos > MATRIX_ROW_END_CHARPOS (next)
+ || (start_charpos == MATRIX_ROW_END_CHARPOS (next)
+ && !next->ends_at_zv_p
+ && !MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (next)))
+ && (end_charpos > MATRIX_ROW_END_CHARPOS (next)
+ || (end_charpos == MATRIX_ROW_END_CHARPOS (next)
+ && !next->ends_at_zv_p
+ && !MATRIX_ROW_ENDS_IN_MIDDLE_OF_CHAR_P (next)))))
+ {
+ *end = row;
+ break;
+ }
+ else
+ {
+ /* If the next row's edges intersect [START_CHARPOS..END_CHARPOS],
+ but none of the characters it displays are in the range, it is
+ also END + 1. */
+ struct glyph *g = next->glyphs[TEXT_AREA];
+ struct glyph *e = g + next->used[TEXT_AREA];
+ while (g < e)
+ {
+ if (BUFFERP (g->object)
+ && start_charpos <= g->charpos && g->charpos < end_charpos)
+ break;
+ g++;
+ }
+ if (g == e)
+ {
+ *end = row;
+ break;
+ }
+ }
+ }
+}
-\f
-/* This function sets the mouse_face_* elements of DPYINFO, assuming
+/* This function sets the mouse_face_* elements of HLINFO, assuming
the mouse cursor is on a glyph with buffer charpos MOUSE_CHARPOS in
window WINDOW. START_CHARPOS and END_CHARPOS are buffer positions
for the overlay or run of text properties specifying the mouse
static void
mouse_face_from_buffer_pos (Lisp_Object window,
- Display_Info *dpyinfo,
+ Mouse_HLInfo *hlinfo,
EMACS_INT mouse_charpos,
EMACS_INT start_charpos,
EMACS_INT end_charpos,
{
struct window *w = XWINDOW (window);
struct glyph_row *first = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
- struct glyph_row *row;
+ struct glyph_row *r1, *r2;
struct glyph *glyph, *end;
- EMACS_INT ignore;
+ EMACS_INT ignore, pos;
int x;
xassert (NILP (display_string) || STRINGP (display_string));
xassert (NILP (before_string) || STRINGP (before_string));
xassert (NILP (after_string) || STRINGP (after_string));
- /* Find the first highlighted glyph. */
- if (start_charpos < MATRIX_ROW_START_CHARPOS (first))
+ /* Find the rows corresponding to START_CHARPOS and END_CHARPOS. */
+ rows_from_pos_range (w, start_charpos, end_charpos, &r1, &r2);
+ if (r1 == NULL)
+ r1 = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
+ /* If the before-string or display-string contains newlines,
+ rows_from_pos_range skips to its last row. Move back. */
+ if (!NILP (before_string) || !NILP (display_string))
+ {
+ struct glyph_row *prev;
+ while ((prev = r1 - 1, prev >= first)
+ && MATRIX_ROW_END_CHARPOS (prev) == start_charpos
+ && prev->used[TEXT_AREA] > 0)
+ {
+ struct glyph *beg = prev->glyphs[TEXT_AREA];
+ glyph = beg + prev->used[TEXT_AREA];
+ while (--glyph >= beg && INTEGERP (glyph->object));
+ if (glyph < beg
+ || !(EQ (glyph->object, before_string)
+ || EQ (glyph->object, display_string)))
+ break;
+ r1 = prev;
+ }
+ }
+ if (r2 == NULL)
{
- dpyinfo->mouse_face_beg_col = 0;
- dpyinfo->mouse_face_beg_row = MATRIX_ROW_VPOS (first, w->current_matrix);
- dpyinfo->mouse_face_beg_x = first->x;
- dpyinfo->mouse_face_beg_y = first->y;
+ r2 = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
+ hlinfo->mouse_face_past_end = 1;
}
- else
+ else if (!NILP (after_string))
{
- row = row_containing_pos (w, start_charpos, first, NULL, 0);
- if (row == NULL)
- row = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
-
- /* If the before-string or display-string contains newlines,
- row_containing_pos skips to its last row. Move back. */
- if (!NILP (before_string) || !NILP (display_string))
- {
- struct glyph_row *prev;
- while ((prev = row - 1, prev >= first)
- && MATRIX_ROW_END_CHARPOS (prev) == start_charpos
- && prev->used[TEXT_AREA] > 0)
- {
- struct glyph *beg = prev->glyphs[TEXT_AREA];
- glyph = beg + prev->used[TEXT_AREA];
- while (--glyph >= beg && INTEGERP (glyph->object));
- if (glyph < beg
- || !(EQ (glyph->object, before_string)
- || EQ (glyph->object, display_string)))
- break;
- row = prev;
- }
- }
+ /* If the after-string has newlines, advance to its last row. */
+ struct glyph_row *next;
+ struct glyph_row *last
+ = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
- glyph = row->glyphs[TEXT_AREA];
- end = glyph + row->used[TEXT_AREA];
- x = row->x;
- dpyinfo->mouse_face_beg_y = row->y;
- dpyinfo->mouse_face_beg_row = MATRIX_ROW_VPOS (row, w->current_matrix);
+ for (next = r2 + 1;
+ next <= last
+ && next->used[TEXT_AREA] > 0
+ && EQ (next->glyphs[TEXT_AREA]->object, after_string);
+ ++next)
+ r2 = next;
+ }
+ /* The rest of the display engine assumes that mouse_face_beg_row is
+ either above below mouse_face_end_row or identical to it. But
+ with bidi-reordered continued lines, the row for START_CHARPOS
+ could be below the row for END_CHARPOS. If so, swap the rows and
+ store them in correct order. */
+ if (r1->y > r2->y)
+ {
+ struct glyph_row *tem = r2;
+
+ r2 = r1;
+ r1 = tem;
+ }
+
+ hlinfo->mouse_face_beg_y = r1->y;
+ hlinfo->mouse_face_beg_row = MATRIX_ROW_VPOS (r1, w->current_matrix);
+ hlinfo->mouse_face_end_y = r2->y;
+ hlinfo->mouse_face_end_row = MATRIX_ROW_VPOS (r2, w->current_matrix);
+
+ /* For a bidi-reordered row, the positions of BEFORE_STRING,
+ AFTER_STRING, DISPLAY_STRING, START_CHARPOS, and END_CHARPOS
+ could be anywhere in the row and in any order. The strategy
+ below is to find the leftmost and the rightmost glyph that
+ belongs to either of these 3 strings, or whose position is
+ between START_CHARPOS and END_CHARPOS, and highlight all the
+ glyphs between those two. This may cover more than just the text
+ between START_CHARPOS and END_CHARPOS if the range of characters
+ strides the bidi level boundary, e.g. if the beginning is in R2L
+ text while the end is in L2R text or vice versa. */
+ if (!r1->reversed_p)
+ {
+ /* This row is in a left to right paragraph. Scan it left to
+ right. */
+ glyph = r1->glyphs[TEXT_AREA];
+ end = glyph + r1->used[TEXT_AREA];
+ x = r1->x;
/* Skip truncation glyphs at the start of the glyph row. */
- if (row->displays_text_p)
+ if (r1->displays_text_p)
for (; glyph < end
&& INTEGERP (glyph->object)
&& glyph->charpos < 0;
++glyph)
x += glyph->pixel_width;
- /* Scan the glyph row, stopping before BEFORE_STRING or
- DISPLAY_STRING or START_CHARPOS. */
+ /* Scan the glyph row, looking for BEFORE_STRING, AFTER_STRING,
+ or DISPLAY_STRING, and the first glyph from buffer whose
+ position is between START_CHARPOS and END_CHARPOS. */
for (; glyph < end
&& !INTEGERP (glyph->object)
- && !EQ (glyph->object, before_string)
&& !EQ (glyph->object, display_string)
&& !(BUFFERP (glyph->object)
- && glyph->charpos >= start_charpos);
+ && (glyph->charpos >= start_charpos
+ && glyph->charpos < end_charpos));
++glyph)
- x += glyph->pixel_width;
-
- dpyinfo->mouse_face_beg_x = x;
- dpyinfo->mouse_face_beg_col = glyph - row->glyphs[TEXT_AREA];
- }
-
- /* Find the last highlighted glyph. */
- row = row_containing_pos (w, end_charpos, first, NULL, 0);
- if (row == NULL)
- {
- row = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
- dpyinfo->mouse_face_past_end = 1;
+ {
+ /* BEFORE_STRING or AFTER_STRING are only relevant if they
+ are present at buffer positions between START_CHARPOS and
+ END_CHARPOS, or if they come from an overlay. */
+ if (EQ (glyph->object, before_string))
+ {
+ pos = string_buffer_position (w, before_string,
+ start_charpos);
+ /* If pos == 0, it means before_string came from an
+ overlay, not from a buffer position. */
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ else if (EQ (glyph->object, after_string))
+ {
+ pos = string_buffer_position (w, after_string, end_charpos);
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ x += glyph->pixel_width;
+ }
+ hlinfo->mouse_face_beg_x = x;
+ hlinfo->mouse_face_beg_col = glyph - r1->glyphs[TEXT_AREA];
}
- else if (!NILP (after_string))
+ else
{
- /* If the after-string has newlines, advance to its last row. */
- struct glyph_row *next;
- struct glyph_row *last
- = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
+ /* This row is in a right to left paragraph. Scan it right to
+ left. */
+ struct glyph *g;
- for (next = row + 1;
- next <= last
- && next->used[TEXT_AREA] > 0
- && EQ (next->glyphs[TEXT_AREA]->object, after_string);
- ++next)
- row = next;
- }
+ end = r1->glyphs[TEXT_AREA] - 1;
+ glyph = end + r1->used[TEXT_AREA];
- glyph = row->glyphs[TEXT_AREA];
- end = glyph + row->used[TEXT_AREA];
- x = row->x;
- dpyinfo->mouse_face_end_y = row->y;
- dpyinfo->mouse_face_end_row = MATRIX_ROW_VPOS (row, w->current_matrix);
+ /* Skip truncation glyphs at the start of the glyph row. */
+ if (r1->displays_text_p)
+ for (; glyph > end
+ && INTEGERP (glyph->object)
+ && glyph->charpos < 0;
+ --glyph)
+ ;
- /* Skip truncation glyphs at the start of the row. */
- if (row->displays_text_p)
- for (; glyph < end
- && INTEGERP (glyph->object)
- && glyph->charpos < 0;
- ++glyph)
- x += glyph->pixel_width;
-
- /* Scan the glyph row, stopping at END_CHARPOS or when we encounter
- AFTER_STRING. */
- for (; glyph < end
- && !INTEGERP (glyph->object)
- && !EQ (glyph->object, after_string)
- && !(BUFFERP (glyph->object) && glyph->charpos >= end_charpos);
- ++glyph)
- x += glyph->pixel_width;
+ /* Scan the glyph row, looking for BEFORE_STRING, AFTER_STRING,
+ or DISPLAY_STRING, and the first glyph from buffer whose
+ position is between START_CHARPOS and END_CHARPOS. */
+ for (; glyph > end
+ && !INTEGERP (glyph->object)
+ && !EQ (glyph->object, display_string)
+ && !(BUFFERP (glyph->object)
+ && (glyph->charpos >= start_charpos
+ && glyph->charpos < end_charpos));
+ --glyph)
+ {
+ /* BEFORE_STRING or AFTER_STRING are only relevant if they
+ are present at buffer positions between START_CHARPOS and
+ END_CHARPOS, or if they come from an overlay. */
+ if (EQ (glyph->object, before_string))
+ {
+ pos = string_buffer_position (w, before_string, start_charpos);
+ /* If pos == 0, it means before_string came from an
+ overlay, not from a buffer position. */
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ else if (EQ (glyph->object, after_string))
+ {
+ pos = string_buffer_position (w, after_string, end_charpos);
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ }
+
+ glyph++; /* first glyph to the right of the highlighted area */
+ for (g = r1->glyphs[TEXT_AREA], x = r1->x; g < glyph; g++)
+ x += g->pixel_width;
+ hlinfo->mouse_face_beg_x = x;
+ hlinfo->mouse_face_beg_col = glyph - r1->glyphs[TEXT_AREA];
+ }
- /* If we found AFTER_STRING, consume it and stop. */
- if (EQ (glyph->object, after_string))
+ /* If the highlight ends in a different row, compute GLYPH and END
+ for the end row. Otherwise, reuse the values computed above for
+ the row where the highlight begins. */
+ if (r2 != r1)
{
- for (; EQ (glyph->object, after_string) && glyph < end; ++glyph)
+ if (!r2->reversed_p)
+ {
+ glyph = r2->glyphs[TEXT_AREA];
+ end = glyph + r2->used[TEXT_AREA];
+ x = r2->x;
+ }
+ else
+ {
+ end = r2->glyphs[TEXT_AREA] - 1;
+ glyph = end + r2->used[TEXT_AREA];
+ }
+ }
+
+ if (!r2->reversed_p)
+ {
+ /* Skip truncation and continuation glyphs near the end of the
+ row, and also blanks and stretch glyphs inserted by
+ extend_face_to_end_of_line. */
+ while (end > glyph
+ && INTEGERP ((end - 1)->object)
+ && (end - 1)->charpos <= 0)
+ --end;
+ /* Scan the rest of the glyph row from the end, looking for the
+ first glyph that comes from BEFORE_STRING, AFTER_STRING, or
+ DISPLAY_STRING, or whose position is between START_CHARPOS
+ and END_CHARPOS */
+ for (--end;
+ end > glyph
+ && !INTEGERP (end->object)
+ && !EQ (end->object, display_string)
+ && !(BUFFERP (end->object)
+ && (end->charpos >= start_charpos
+ && end->charpos < end_charpos));
+ --end)
+ {
+ /* BEFORE_STRING or AFTER_STRING are only relevant if they
+ are present at buffer positions between START_CHARPOS and
+ END_CHARPOS, or if they come from an overlay. */
+ if (EQ (end->object, before_string))
+ {
+ pos = string_buffer_position (w, before_string, start_charpos);
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ else if (EQ (end->object, after_string))
+ {
+ pos = string_buffer_position (w, after_string, end_charpos);
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ }
+ /* Find the X coordinate of the last glyph to be highlighted. */
+ for (; glyph <= end; ++glyph)
x += glyph->pixel_width;
+
+ hlinfo->mouse_face_end_x = x;
+ hlinfo->mouse_face_end_col = glyph - r2->glyphs[TEXT_AREA];
}
else
{
- /* If there's no after-string, we must check if we overshot,
- which might be the case if we stopped after a string glyph.
- That glyph may belong to a before-string or display-string
- associated with the end position, which must not be
- highlighted. */
- Lisp_Object prev_object;
- EMACS_INT pos;
-
- while (glyph > row->glyphs[TEXT_AREA])
- {
- prev_object = (glyph - 1)->object;
- if (!STRINGP (prev_object) || EQ (prev_object, display_string))
- break;
-
- pos = string_buffer_position (w, prev_object, end_charpos);
- if (pos && pos < end_charpos)
- break;
-
- for (; glyph > row->glyphs[TEXT_AREA]
- && EQ ((glyph - 1)->object, prev_object);
- --glyph)
- x -= (glyph - 1)->pixel_width;
+ /* Skip truncation and continuation glyphs near the end of the
+ row, and also blanks and stretch glyphs inserted by
+ extend_face_to_end_of_line. */
+ x = r2->x;
+ end++;
+ while (end < glyph
+ && INTEGERP (end->object)
+ && end->charpos <= 0)
+ {
+ x += end->pixel_width;
+ ++end;
+ }
+ /* Scan the rest of the glyph row from the end, looking for the
+ first glyph that comes from BEFORE_STRING, AFTER_STRING, or
+ DISPLAY_STRING, or whose position is between START_CHARPOS
+ and END_CHARPOS */
+ for ( ;
+ end < glyph
+ && !INTEGERP (end->object)
+ && !EQ (end->object, display_string)
+ && !(BUFFERP (end->object)
+ && (end->charpos >= start_charpos
+ && end->charpos < end_charpos));
+ ++end)
+ {
+ /* BEFORE_STRING or AFTER_STRING are only relevant if they
+ are present at buffer positions between START_CHARPOS and
+ END_CHARPOS, or if they come from an overlay. */
+ if (EQ (end->object, before_string))
+ {
+ pos = string_buffer_position (w, before_string, start_charpos);
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ else if (EQ (end->object, after_string))
+ {
+ pos = string_buffer_position (w, after_string, end_charpos);
+ if (!pos || (pos >= start_charpos && pos < end_charpos))
+ break;
+ }
+ x += end->pixel_width;
}
+ hlinfo->mouse_face_end_x = x;
+ hlinfo->mouse_face_end_col = end - r2->glyphs[TEXT_AREA];
}
- dpyinfo->mouse_face_end_x = x;
- dpyinfo->mouse_face_end_col = glyph - row->glyphs[TEXT_AREA];
- dpyinfo->mouse_face_window = window;
- dpyinfo->mouse_face_face_id
+ hlinfo->mouse_face_window = window;
+ hlinfo->mouse_face_face_id
= face_at_buffer_position (w, mouse_charpos, 0, 0, &ignore,
mouse_charpos + 1,
- !dpyinfo->mouse_face_hidden, -1);
- show_mouse_face (dpyinfo, DRAW_MOUSE_FACE);
+ !hlinfo->mouse_face_hidden, -1);
+ show_mouse_face (hlinfo, DRAW_MOUSE_FACE);
}
+/* The following function is not used anymore (replaced with
+ mouse_face_from_string_pos), but I leave it here for the time
+ being, in case someone would. */
+
+#if 0 /* not used */
/* Find the position of the glyph for position POS in OBJECT in
window W's current matrix, and return in *X, *Y the pixel
return best_glyph != NULL;
}
+#endif /* not used */
+/* Find the positions of the first and the last glyphs in window W's
+ current matrix that occlude positions [STARTPOS..ENDPOS] in OBJECT
+ (assumed to be a string), and return in HLINFO's mouse_face_*
+ members the pixel and column/row coordinates of those glyphs. */
+
+static void
+mouse_face_from_string_pos (struct window *w, Mouse_HLInfo *hlinfo,
+ Lisp_Object object,
+ EMACS_INT startpos, EMACS_INT endpos)
+{
+ int yb = window_text_bottom_y (w);
+ struct glyph_row *r;
+ struct glyph *g, *e;
+ int gx;
+ int found = 0;
+
+ /* Find the glyph row with at least one position in the range
+ [STARTPOS..ENDPOS], and the first glyph in that row whose
+ position belongs to that range. */
+ for (r = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
+ r->enabled_p && r->y < yb;
+ ++r)
+ {
+ if (!r->reversed_p)
+ {
+ g = r->glyphs[TEXT_AREA];
+ e = g + r->used[TEXT_AREA];
+ for (gx = r->x; g < e; gx += g->pixel_width, ++g)
+ if (EQ (g->object, object)
+ && startpos <= g->charpos && g->charpos <= endpos)
+ {
+ hlinfo->mouse_face_beg_row = r - w->current_matrix->rows;
+ hlinfo->mouse_face_beg_y = r->y;
+ hlinfo->mouse_face_beg_col = g - r->glyphs[TEXT_AREA];
+ hlinfo->mouse_face_beg_x = gx;
+ found = 1;
+ break;
+ }
+ }
+ else
+ {
+ struct glyph *g1;
+
+ e = r->glyphs[TEXT_AREA];
+ g = e + r->used[TEXT_AREA];
+ for ( ; g > e; --g)
+ if (EQ ((g-1)->object, object)
+ && startpos <= (g-1)->charpos && (g-1)->charpos <= endpos)
+ {
+ hlinfo->mouse_face_beg_row = r - w->current_matrix->rows;
+ hlinfo->mouse_face_beg_y = r->y;
+ hlinfo->mouse_face_beg_col = g - r->glyphs[TEXT_AREA];
+ for (gx = r->x, g1 = r->glyphs[TEXT_AREA]; g1 < g; ++g1)
+ gx += g1->pixel_width;
+ hlinfo->mouse_face_beg_x = gx;
+ found = 1;
+ break;
+ }
+ }
+ if (found)
+ break;
+ }
+
+ if (!found)
+ return;
+
+ /* Starting with the next row, look for the first row which does NOT
+ include any glyphs whose positions are in the range. */
+ for (++r; r->enabled_p && r->y < yb; ++r)
+ {
+ g = r->glyphs[TEXT_AREA];
+ e = g + r->used[TEXT_AREA];
+ found = 0;
+ for ( ; g < e; ++g)
+ if (EQ (g->object, object)
+ && startpos <= g->charpos && g->charpos <= endpos)
+ {
+ found = 1;
+ break;
+ }
+ if (!found)
+ break;
+ }
+
+ /* The highlighted region ends on the previous row. */
+ r--;
+
+ /* Set the end row and its vertical pixel coordinate. */
+ hlinfo->mouse_face_end_row = r - w->current_matrix->rows;
+ hlinfo->mouse_face_end_y = r->y;
+
+ /* Compute and set the end column and the end column's horizontal
+ pixel coordinate. */
+ if (!r->reversed_p)
+ {
+ g = r->glyphs[TEXT_AREA];
+ e = g + r->used[TEXT_AREA];
+ for ( ; e > g; --e)
+ if (EQ ((e-1)->object, object)
+ && startpos <= (e-1)->charpos && (e-1)->charpos <= endpos)
+ break;
+ hlinfo->mouse_face_end_col = e - g;
+
+ for (gx = r->x; g < e; ++g)
+ gx += g->pixel_width;
+ hlinfo->mouse_face_end_x = gx;
+ }
+ else
+ {
+ e = r->glyphs[TEXT_AREA];
+ g = e + r->used[TEXT_AREA];
+ for (gx = r->x ; e < g; ++e)
+ {
+ if (EQ (e->object, object)
+ && startpos <= e->charpos && e->charpos <= endpos)
+ break;
+ gx += e->pixel_width;
+ }
+ hlinfo->mouse_face_end_col = e - r->glyphs[TEXT_AREA];
+ hlinfo->mouse_face_end_x = gx;
+ }
+}
+
+#ifdef HAVE_WINDOW_SYSTEM
/* See if position X, Y is within a hot-spot of an image. */
FRAME_RIF (f)->define_frame_cursor (f, cursor);
}
+#endif /* HAVE_WINDOW_SYSTEM */
+
/* Take proper action when mouse has moved to the mode or header line
or marginal area AREA of window W, x-position X and y-position Y.
X is relative to the start of the text display area of W, so the
{
struct window *w = XWINDOW (window);
struct frame *f = XFRAME (w->frame);
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
- Cursor cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
+#ifdef HAVE_WINDOW_SYSTEM
+ Display_Info *dpyinfo;
+#endif
+ Cursor cursor = No_Cursor;
Lisp_Object pointer = Qnil;
int dx, dy, width, height;
EMACS_INT charpos;
int x0;
struct glyph *end;
+ /* Kludge alert: mode_line_string takes X/Y in pixels, but
+ returns them in row/column units! */
string = mode_line_string (w, area, &x, &y, &charpos,
&object, &dx, &dy, &width, &height);
? MATRIX_MODE_LINE_ROW (w->current_matrix)
: MATRIX_HEADER_LINE_ROW (w->current_matrix));
- /* Find glyph */
+ /* Find the glyph under the mouse pointer. */
if (row->mode_line_p && row->enabled_p)
{
glyph = row_start_glyph = row->glyphs[TEXT_AREA];
else
{
x -= WINDOW_LEFT_SCROLL_BAR_AREA_WIDTH (w);
+ /* Kludge alert: marginal_area_string takes X/Y in pixels, but
+ returns them in row/column units! */
string = marginal_area_string (w, area, &x, &y, &charpos,
&object, &dx, &dy, &width, &height);
}
help = Qnil;
+#ifdef HAVE_WINDOW_SYSTEM
if (IMAGEP (object))
{
Lisp_Object image_map, hotspot;
if (NILP (pointer))
pointer = Fplist_get (XCDR (object), QCpointer);
}
+#endif /* HAVE_WINDOW_SYSTEM */
if (STRINGP (string))
{
}
}
- if (NILP (pointer))
- pointer = Fget_text_property (pos, Qpointer, string);
-
- /* Change the mouse pointer according to what is under X/Y. */
- if (NILP (pointer) && ((area == ON_MODE_LINE) || (area == ON_HEADER_LINE)))
+#ifdef HAVE_WINDOW_SYSTEM
+ if (FRAME_WINDOW_P (f))
{
- Lisp_Object map;
- map = Fget_text_property (pos, Qlocal_map, string);
- if (!KEYMAPP (map))
- map = Fget_text_property (pos, Qkeymap, string);
- if (!KEYMAPP (map))
- cursor = dpyinfo->vertical_scroll_bar_cursor;
+ dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
+ if (NILP (pointer))
+ pointer = Fget_text_property (pos, Qpointer, string);
+
+ /* Change the mouse pointer according to what is under X/Y. */
+ if (NILP (pointer)
+ && ((area == ON_MODE_LINE) || (area == ON_HEADER_LINE)))
+ {
+ Lisp_Object map;
+ map = Fget_text_property (pos, Qlocal_map, string);
+ if (!KEYMAPP (map))
+ map = Fget_text_property (pos, Qkeymap, string);
+ if (!KEYMAPP (map))
+ cursor = dpyinfo->vertical_scroll_bar_cursor;
+ }
}
+#endif
/* Change the mouse face according to what is under X/Y. */
mouse_face = Fget_text_property (pos, Qmouse_face, string);
int gpos;
int gseq_length;
int total_pixel_width;
- EMACS_INT ignore;
+ EMACS_INT begpos, endpos, ignore;
int vpos, hpos;
b = Fprevious_single_property_change (make_number (charpos + 1),
Qmouse_face, string, Qnil);
if (NILP (b))
- b = make_number (0);
+ begpos = 0;
+ else
+ begpos = XINT (b);
e = Fnext_single_property_change (pos, Qmouse_face, string, Qnil);
if (NILP (e))
- e = make_number (SCHARS (string));
-
- /* Calculate the position(glyph position: GPOS) of GLYPH in
- displayed string. GPOS is different from CHARPOS.
-
- CHARPOS is the position of glyph in internal string
- object. A mode line string format has structures which
- is converted to a flatten by emacs lisp interpreter.
- The internal string is an element of the structures.
- The displayed string is the flatten string. */
- gpos = 0;
- if (glyph > row_start_glyph)
- {
- tmp_glyph = glyph - 1;
- while (tmp_glyph >= row_start_glyph
- && tmp_glyph->charpos >= XINT (b)
- && EQ (tmp_glyph->object, glyph->object))
- {
- tmp_glyph--;
- gpos++;
- }
- }
-
- /* Calculate the lenght(glyph sequence length: GSEQ_LENGTH) of
- displayed string holding GLYPH.
-
- GSEQ_LENGTH is different from SCHARS (STRING).
- SCHARS (STRING) returns the length of the internal string. */
- for (tmp_glyph = glyph, gseq_length = gpos;
- tmp_glyph->charpos < XINT (e);
- tmp_glyph++, gseq_length++)
- {
- if (!EQ (tmp_glyph->object, glyph->object))
- break;
- }
+ endpos = SCHARS (string);
+ else
+ endpos = XINT (e);
+
+ /* Calculate the glyph position GPOS of GLYPH in the
+ displayed string, relative to the beginning of the
+ highlighted part of the string.
+
+ Note: GPOS is different from CHARPOS. CHARPOS is the
+ position of GLYPH in the internal string object. A mode
+ line string format has structures which are converted to
+ a flattened string by the Emacs Lisp interpreter. The
+ internal string is an element of those structures. The
+ displayed string is the flattened string. */
+ tmp_glyph = row_start_glyph;
+ while (tmp_glyph < glyph
+ && (!(EQ (tmp_glyph->object, glyph->object)
+ && begpos <= tmp_glyph->charpos
+ && tmp_glyph->charpos < endpos)))
+ tmp_glyph++;
+ gpos = glyph - tmp_glyph;
+
+ /* Calculate the length GSEQ_LENGTH of the glyph sequence of
+ the highlighted part of the displayed string to which
+ GLYPH belongs. Note: GSEQ_LENGTH is different from
+ SCHARS (STRING), because the latter returns the length of
+ the internal string. */
+ for (tmp_glyph = row->glyphs[TEXT_AREA] + row->used[TEXT_AREA] - 1;
+ tmp_glyph > glyph
+ && (!(EQ (tmp_glyph->object, glyph->object)
+ && begpos <= tmp_glyph->charpos
+ && tmp_glyph->charpos < endpos));
+ tmp_glyph--)
+ ;
+ gseq_length = gpos + (tmp_glyph - glyph) + 1;
+ /* Calculate the total pixel width of all the glyphs between
+ the beginning of the highlighted area and GLYPH. */
total_pixel_width = 0;
for (tmp_glyph = glyph - gpos; tmp_glyph != glyph; tmp_glyph++)
total_pixel_width += tmp_glyph->pixel_width;
- /* Pre calculation of re-rendering position */
- vpos = (x - gpos);
- hpos = (area == ON_MODE_LINE
+ /* Pre calculation of re-rendering position. Note: X is in
+ column units here, after the call to mode_line_string or
+ marginal_area_string. */
+ hpos = x - gpos;
+ vpos = (area == ON_MODE_LINE
? (w->current_matrix)->nrows - 1
: 0);
- /* If the re-rendering position is included in the last
- re-rendering area, we should do nothing. */
- if ( EQ (window, dpyinfo->mouse_face_window)
- && dpyinfo->mouse_face_beg_col <= vpos
- && vpos < dpyinfo->mouse_face_end_col
- && dpyinfo->mouse_face_beg_row == hpos )
+ /* If GLYPH's position is included in the region that is
+ already drawn in mouse face, we have nothing to do. */
+ if ( EQ (window, hlinfo->mouse_face_window)
+ && (!row->reversed_p
+ ? (hlinfo->mouse_face_beg_col <= hpos
+ && hpos < hlinfo->mouse_face_end_col)
+ /* In R2L rows we swap BEG and END, see below. */
+ : (hlinfo->mouse_face_end_col <= hpos
+ && hpos < hlinfo->mouse_face_beg_col))
+ && hlinfo->mouse_face_beg_row == vpos )
return;
- if (clear_mouse_face (dpyinfo))
+ if (clear_mouse_face (hlinfo))
cursor = No_Cursor;
- dpyinfo->mouse_face_beg_col = vpos;
- dpyinfo->mouse_face_beg_row = hpos;
-
- dpyinfo->mouse_face_beg_x = original_x_pixel - (total_pixel_width + dx);
- dpyinfo->mouse_face_beg_y = 0;
-
- dpyinfo->mouse_face_end_col = vpos + gseq_length;
- dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_beg_row;
-
- dpyinfo->mouse_face_end_x = 0;
- dpyinfo->mouse_face_end_y = 0;
-
- dpyinfo->mouse_face_past_end = 0;
- dpyinfo->mouse_face_window = window;
+ if (!row->reversed_p)
+ {
+ hlinfo->mouse_face_beg_col = hpos;
+ hlinfo->mouse_face_beg_x = original_x_pixel
+ - (total_pixel_width + dx);
+ hlinfo->mouse_face_end_col = hpos + gseq_length;
+ hlinfo->mouse_face_end_x = 0;
+ }
+ else
+ {
+ /* In R2L rows, show_mouse_face expects BEG and END
+ coordinates to be swapped. */
+ hlinfo->mouse_face_end_col = hpos;
+ hlinfo->mouse_face_end_x = original_x_pixel
+ - (total_pixel_width + dx);
+ hlinfo->mouse_face_beg_col = hpos + gseq_length;
+ hlinfo->mouse_face_beg_x = 0;
+ }
- dpyinfo->mouse_face_face_id = face_at_string_position (w, string,
- charpos,
- 0, 0, 0, &ignore,
- glyph->face_id, 1);
- show_mouse_face (dpyinfo, DRAW_MOUSE_FACE);
+ hlinfo->mouse_face_beg_row = vpos;
+ hlinfo->mouse_face_end_row = hlinfo->mouse_face_beg_row;
+ hlinfo->mouse_face_beg_y = 0;
+ hlinfo->mouse_face_end_y = 0;
+ hlinfo->mouse_face_past_end = 0;
+ hlinfo->mouse_face_window = window;
+
+ hlinfo->mouse_face_face_id = face_at_string_position (w, string,
+ charpos,
+ 0, 0, 0,
+ &ignore,
+ glyph->face_id,
+ 1);
+ show_mouse_face (hlinfo, DRAW_MOUSE_FACE);
if (NILP (pointer))
pointer = Qhand;
}
else if ((area == ON_MODE_LINE) || (area == ON_HEADER_LINE))
- clear_mouse_face (dpyinfo);
+ clear_mouse_face (hlinfo);
}
- define_frame_cursor1 (f, cursor, pointer);
+#ifdef HAVE_WINDOW_SYSTEM
+ if (FRAME_WINDOW_P (f))
+ define_frame_cursor1 (f, cursor, pointer);
+#endif
}
void
note_mouse_highlight (struct frame *f, int x, int y)
{
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
enum window_part part;
Lisp_Object window;
struct window *w;
struct buffer *b;
/* When a menu is active, don't highlight because this looks odd. */
-#if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS)
+#if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (MSDOS)
if (popup_activated ())
return;
#endif
|| f->pointer_invisible)
return;
- dpyinfo->mouse_face_mouse_x = x;
- dpyinfo->mouse_face_mouse_y = y;
- dpyinfo->mouse_face_mouse_frame = f;
+ hlinfo->mouse_face_mouse_x = x;
+ hlinfo->mouse_face_mouse_y = y;
+ hlinfo->mouse_face_mouse_frame = f;
- if (dpyinfo->mouse_face_defer)
+ if (hlinfo->mouse_face_defer)
return;
if (gc_in_progress)
{
- dpyinfo->mouse_face_deferred_gc = 1;
+ hlinfo->mouse_face_deferred_gc = 1;
return;
}
/* Which window is that in? */
- window = window_from_coordinates (f, x, y, &part, 0, 0, 1);
+ window = window_from_coordinates (f, x, y, &part, 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 (! EQ (window, dpyinfo->mouse_face_window)
+ if (! EQ (window, hlinfo->mouse_face_window)
|| (part != ON_TEXT && part != ON_MODE_LINE && part != ON_HEADER_LINE
- && !NILP (dpyinfo->mouse_face_window)))
- clear_mouse_face (dpyinfo);
+ && !NILP (hlinfo->mouse_face_window)))
+ clear_mouse_face (hlinfo);
/* Not on a window -> return. */
if (!WINDOWP (window))
w = XWINDOW (window);
frame_to_window_pixel_xy (w, &x, &y);
+#ifdef HAVE_WINDOW_SYSTEM
/* Handle tool-bar window differently since it doesn't display a
buffer. */
if (EQ (window, f->tool_bar_window))
note_tool_bar_highlight (f, x, y);
return;
}
+#endif
/* Mouse is on the mode, header line or margin? */
if (part == ON_MODE_LINE || part == ON_HEADER_LINE
return;
}
+#ifdef HAVE_WINDOW_SYSTEM
if (part == ON_VERTICAL_BORDER)
{
cursor = FRAME_X_OUTPUT (f)->horizontal_drag_cursor;
cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
else
cursor = FRAME_X_OUTPUT (f)->text_cursor;
+#endif
/* Are we in a window whose display is up to date?
And verify the buffer's text has not changed. */
/* Find the glyph under X/Y. */
glyph = x_y_to_hpos_vpos (w, x, y, &hpos, &vpos, &dx, &dy, &area);
+#ifdef HAVE_WINDOW_SYSTEM
/* Look for :pointer property on image. */
if (glyph != NULL && glyph->type == IMAGE_GLYPH)
{
pointer = Fplist_get (XCDR (img->spec), QCpointer);
}
}
+#endif /* HAVE_WINDOW_SYSTEM */
/* Clear mouse face if X/Y not over text. */
if (glyph == NULL
|| area != TEXT_AREA
- || !MATRIX_ROW (w->current_matrix, vpos)->displays_text_p)
- {
- if (clear_mouse_face (dpyinfo))
+ || !MATRIX_ROW (w->current_matrix, vpos)->displays_text_p
+ /* Glyph's OBJECT is an integer for glyphs inserted by the
+ display engine for its internal purposes, like truncation
+ and continuation glyphs and blanks beyond the end of
+ line's text on text terminals. If we are over such a
+ glyph, we are not over any text. */
+ || INTEGERP (glyph->object)
+ /* R2L rows have a stretch glyph at their front, which
+ stands for no text, whereas L2R rows have no glyphs at
+ all beyond the end of text. Treat such stretch glyphs
+ like we do with NULL glyphs in L2R rows. */
+ || (MATRIX_ROW (w->current_matrix, vpos)->reversed_p
+ && glyph == MATRIX_ROW (w->current_matrix, vpos)->glyphs[TEXT_AREA]
+ && glyph->type == STRETCH_GLYPH
+ && glyph->avoid_cursor_p))
+ {
+ if (clear_mouse_face (hlinfo))
cursor = No_Cursor;
- if (NILP (pointer))
+#ifdef HAVE_WINDOW_SYSTEM
+ if (FRAME_WINDOW_P (f) && NILP (pointer))
{
if (area != TEXT_AREA)
cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
else
pointer = Vvoid_text_area_pointer;
}
+#endif
goto set_cursor;
}
else
noverlays = 0;
- same_region = (EQ (window, dpyinfo->mouse_face_window)
- && vpos >= dpyinfo->mouse_face_beg_row
- && vpos <= dpyinfo->mouse_face_end_row
- && (vpos > dpyinfo->mouse_face_beg_row
- || hpos >= dpyinfo->mouse_face_beg_col)
- && (vpos < dpyinfo->mouse_face_end_row
- || hpos < dpyinfo->mouse_face_end_col
- || dpyinfo->mouse_face_past_end));
+ same_region = coords_in_mouse_face_p (w, hpos, vpos);
if (same_region)
cursor = No_Cursor;
the one we are currently highlighting, we have to
check if we enter the overlapping overlay, and then
highlight only that. */
- || (OVERLAYP (dpyinfo->mouse_face_overlay)
- && mouse_face_overlay_overlaps (dpyinfo->mouse_face_overlay)))
+ || (OVERLAYP (hlinfo->mouse_face_overlay)
+ && mouse_face_overlay_overlaps (hlinfo->mouse_face_overlay)))
{
/* Find the highest priority overlay with a mouse-face. */
overlay = Qnil;
/* If we're highlighting the same overlay as before, there's
no need to do that again. */
- if (!NILP (overlay) && EQ (overlay, dpyinfo->mouse_face_overlay))
+ if (!NILP (overlay) && EQ (overlay, hlinfo->mouse_face_overlay))
goto check_help_echo;
- dpyinfo->mouse_face_overlay = overlay;
+ hlinfo->mouse_face_overlay = overlay;
/* Clear the display of the old active region, if any. */
- if (clear_mouse_face (dpyinfo))
+ if (clear_mouse_face (hlinfo))
cursor = No_Cursor;
/* If no overlay applies, get a text property. */
b = make_number (0);
if (NILP (e))
e = make_number (SCHARS (object) - 1);
-
- fast_find_string_pos (w, XINT (b), object,
- &dpyinfo->mouse_face_beg_col,
- &dpyinfo->mouse_face_beg_row,
- &dpyinfo->mouse_face_beg_x,
- &dpyinfo->mouse_face_beg_y, 0);
- fast_find_string_pos (w, XINT (e), object,
- &dpyinfo->mouse_face_end_col,
- &dpyinfo->mouse_face_end_row,
- &dpyinfo->mouse_face_end_x,
- &dpyinfo->mouse_face_end_y, 1);
- dpyinfo->mouse_face_past_end = 0;
- dpyinfo->mouse_face_window = window;
- dpyinfo->mouse_face_face_id
+ mouse_face_from_string_pos (w, hlinfo, object,
+ XINT (b), XINT (e));
+ hlinfo->mouse_face_past_end = 0;
+ hlinfo->mouse_face_window = window;
+ hlinfo->mouse_face_face_id
= face_at_string_position (w, object, pos, 0, 0, 0, &ignore,
glyph->face_id, 1);
- show_mouse_face (dpyinfo, DRAW_MOUSE_FACE);
+ show_mouse_face (hlinfo, DRAW_MOUSE_FACE);
cursor = No_Cursor;
}
else
{
Lisp_Object before, after;
Lisp_Object before_string, after_string;
+ /* To correctly find the limits of mouse highlight
+ in a bidi-reordered buffer, we must not use the
+ optimization of limiting the search in
+ previous-single-property-change and
+ next-single-property-change, because
+ rows_from_pos_range needs the real start and end
+ positions to DTRT in this case. That's because
+ the first row visible in a window does not
+ necessarily display the character whose position
+ is the smallest. */
+ Lisp_Object lim1 =
+ NILP (XBUFFER (buffer)->bidi_display_reordering)
+ ? Fmarker_position (w->start)
+ : Qnil;
+ Lisp_Object lim2 =
+ NILP (XBUFFER (buffer)->bidi_display_reordering)
+ ? make_number (BUF_Z (XBUFFER (buffer))
+ - XFASTINT (w->window_end_pos))
+ : Qnil;
if (NILP (overlay))
{
/* Handle the text property case. */
before = Fprevious_single_property_change
- (make_number (pos + 1), Qmouse_face, buffer,
- Fmarker_position (w->start));
+ (make_number (pos + 1), Qmouse_face, buffer, lim1);
after = Fnext_single_property_change
- (make_number (pos), Qmouse_face, buffer,
- make_number (BUF_Z (XBUFFER (buffer))
- - XFASTINT (w->window_end_pos)));
+ (make_number (pos), Qmouse_face, buffer, lim2);
before_string = after_string = Qnil;
}
else
if (!STRINGP (after_string)) after_string = Qnil;
}
- mouse_face_from_buffer_pos (window, dpyinfo, pos,
+ mouse_face_from_buffer_pos (window, hlinfo, pos,
XFASTINT (before),
XFASTINT (after),
before_string, after_string,
}
}
+#ifdef HAVE_WINDOW_SYSTEM
/* Look for a `pointer' property. */
- if (NILP (pointer))
+ if (FRAME_WINDOW_P (f) && NILP (pointer))
{
/* Check overlays first. */
for (i = noverlays - 1; i >= 0 && NILP (pointer); --i)
Qpointer, object);
}
}
+#endif /* HAVE_WINDOW_SYSTEM */
BEGV = obegv;
ZV = ozv;
set_cursor:
- define_frame_cursor1 (f, cursor, pointer);
+#ifdef HAVE_WINDOW_SYSTEM
+ if (FRAME_WINDOW_P (f))
+ define_frame_cursor1 (f, cursor, pointer);
+#else
+ /* This is here to prevent a compiler error, about "label at end of
+ compound statement". */
+ return;
+#endif
}
void
x_clear_window_mouse_face (struct window *w)
{
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (XFRAME (w->frame));
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (XFRAME (w->frame));
Lisp_Object window;
BLOCK_INPUT;
XSETWINDOW (window, w);
- if (EQ (window, dpyinfo->mouse_face_window))
- clear_mouse_face (dpyinfo);
+ if (EQ (window, hlinfo->mouse_face_window))
+ clear_mouse_face (hlinfo);
UNBLOCK_INPUT;
}
cancel_mouse_face (struct frame *f)
{
Lisp_Object window;
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
- window = dpyinfo->mouse_face_window;
+ window = hlinfo->mouse_face_window;
if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f)
{
- dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
- dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
- dpyinfo->mouse_face_window = Qnil;
+ hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
+ hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
+ hlinfo->mouse_face_window = Qnil;
}
}
-#endif /* HAVE_WINDOW_SYSTEM */
-
\f
/***********************************************************************
Exposure Events
focus-follows-mouse with delayed raise. --jason 2001-10-12 */
if (mouse_face_overwritten_p && !FRAME_GARBAGED_P (f))
{
- Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
- if (f == dpyinfo->mouse_face_mouse_frame)
+ Mouse_HLInfo *hlinfo = MOUSE_HL_INFO (f);
+ if (f == hlinfo->mouse_face_mouse_frame)
{
- int x = dpyinfo->mouse_face_mouse_x;
- int y = dpyinfo->mouse_face_mouse_y;
- clear_mouse_face (dpyinfo);
+ int x = hlinfo->mouse_face_mouse_x;
+ int y = hlinfo->mouse_face_mouse_y;
+ clear_mouse_face (hlinfo);
note_mouse_highlight (f, x, y);
}
}
Vblink_cursor_alist = Qnil;
DEFVAR_BOOL ("auto-hscroll-mode", &automatic_hscrolling_p,
- doc: /* *Non-nil means scroll the display automatically to make point visible. */);
+ doc: /* Allow or disallow automatic horizontal scrolling of windows.
+If non-nil, windows are automatically scrolled horizontally to make
+point visible. */);
automatic_hscrolling_p = 1;
Qauto_hscroll_mode = intern_c_string ("auto-hscroll-mode");
staticpro (&Qauto_hscroll_mode);
underline_minimum_offset = 1;
DEFVAR_BOOL ("display-hourglass", &display_hourglass_p,
- doc: /* Non-zero means Emacs displays an hourglass pointer on window systems. */);
+ doc: /* Non-nil means show an hourglass pointer, when Emacs is busy.
+This feature only works when on a window system that can change
+cursor shapes. */);
display_hourglass_p = 1;
DEFVAR_LISP ("hourglass-delay", &Vhourglass_delay,
- doc: /* *Seconds to wait before displaying an hourglass pointer.
-Value must be an integer or float. */);
+ doc: /* *Seconds to wait before displaying an hourglass pointer when Emacs is busy. */);
Vhourglass_delay = make_number (DEFAULT_HOURGLASS_DELAY);
hourglass_atimer = NULL;
hourglass_shown_p = 0;
+
+ DEFSYM (Qglyphless_char, "glyphless-char");
+ DEFSYM (Qhex_code, "hex-code");
+ DEFSYM (Qempty_box, "empty-box");
+ DEFSYM (Qthin_space, "thin-space");
+ DEFSYM (Qzero_width, "zero-width");
+
+ DEFSYM (Qglyphless_char_display, "glyphless-char-display");
+ /* Intern this now in case it isn't already done.
+ Setting this variable twice is harmless.
+ But don't staticpro it here--that is done in alloc.c. */
+ Qchar_table_extra_slots = intern_c_string ("char-table-extra-slots");
+ Fput (Qglyphless_char_display, Qchar_table_extra_slots, make_number (1));
+
+ DEFVAR_LISP ("glyphless-char-display", &Vglyphless_char_display,
+ doc: /* Char-table to control displaying of glyphless characters.
+Each element, if non-nil, is an ASCII acronym string (displayed in a box)
+or one of these symbols:
+ hex-code: display the hexadecimal code of a character in a box
+ empty-box: display as an empty box
+ thin-space: display as 1-pixel width space
+ zero-width: don't display
+
+It has one extra slot to control the display of a character for which
+no font is found. The value of the slot is `hex-code' or `empty-box'.
+The default is `empty-box'. */);
+ Vglyphless_char_display = Fmake_char_table (Qglyphless_char_display, Qnil);
+ Fset_char_table_extra_slot (Vglyphless_char_display, make_number (0),
+ Qempty_box);
}
}
#endif /* ! WINDOWSNT */
-/* arch-tag: eacc864d-bb6a-4b74-894a-1a4399a1358b
- (do not change this comment) */
HCoop / bpt / emacs.git / blobdiff