/* Updating of data structures for redisplay.
- Copyright (C) 1985,86,87,88,93,94,95,97,98,1999,2000,01,02,2003
- Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995,
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include <config.h>
#include <signal.h>
MATRIX_ROW_END_CHARPOS (row) += delta;
MATRIX_ROW_END_BYTEPOS (row) += delta_bytes;
+ if (!row->enabled_p)
+ return;
+
/* Increment positions in glyphs. */
for (area = 0; area < LAST_AREA; ++area)
for (i = 0; i < row->used[area]; ++i)
return 0;
}
- if (a->truncated_on_left_p != b->truncated_on_left_p
- || a->fill_line_p != b->fill_line_p
- || a->truncated_on_right_p != b->truncated_on_right_p
- || a->overlay_arrow_p != b->overlay_arrow_p
- || a->continued_p != b->continued_p
- || a->indicate_empty_line_p != b->indicate_empty_line_p
+ if (a->fill_line_p != b->fill_line_p
+ || a->cursor_in_fringe_p != b->cursor_in_fringe_p
+ || a->left_fringe_bitmap != b->left_fringe_bitmap
+ || a->left_fringe_face_id != b->left_fringe_face_id
+ || a->right_fringe_bitmap != b->right_fringe_bitmap
+ || a->right_fringe_face_id != b->right_fringe_face_id
+ || a->overlay_arrow_bitmap != b->overlay_arrow_bitmap
+ || a->exact_window_width_line_p != b->exact_window_width_line_p
|| a->overlapped_p != b->overlapped_p
|| (MATRIX_ROW_CONTINUATION_LINE_P (a)
!= MATRIX_ROW_CONTINUATION_LINE_P (b))
|| dim.width != w->desired_matrix->matrix_w
|| dim.height != w->desired_matrix->matrix_h
|| (margin_glyphs_to_reserve (w, dim.width,
- w->right_margin_cols)
+ w->left_margin_cols)
!= w->desired_matrix->left_margin_glyphs)
|| (margin_glyphs_to_reserve (w, dim.width,
- w->left_margin_cols)
+ w->right_margin_cols)
!= w->desired_matrix->right_margin_glyphs))
*window_change_flags |= CHANGED_LEAF_MATRIX;
int ch_height = FRAME_SMALLEST_FONT_HEIGHT (f);
int window_pixel_height = window_box_height (w) + abs (w->vscroll);
return (((window_pixel_height + ch_height - 1)
- / ch_height)
+ / ch_height) * w->nrows_scale_factor
/* One partially visible line at the top and
bottom of the window. */
+ 2
/* Compute number of glyphs needed in a glyph row. */
return (((window_pixel_width + ch_width - 1)
- / ch_width)
+ / ch_width) * w->ncols_scale_factor
/* 2 partially visible columns in the text area. */
+ 2
/* One partially visible column at the right
if (!WINDOW_RIGHTMOST_P (w))
{
struct Lisp_Char_Table *dp = window_display_table (w);
- right_border_glyph = (dp && INTEGERP (DISP_BORDER_GLYPH (dp))
- ? XINT (DISP_BORDER_GLYPH (dp))
- : '|');
+
+ right_border_glyph
+ = ((dp && INTEGERP (DISP_BORDER_GLYPH (dp)))
+ ? spec_glyph_lookup_face (w, XINT (DISP_BORDER_GLYPH (dp)))
+ : '|');
+
+ if (FAST_GLYPH_FACE (right_border_glyph) <= 0)
+ right_border_glyph
+ = FAST_MAKE_GLYPH (right_border_glyph, VERTICAL_BORDER_FACE_ID);
}
}
else
SET_CHAR_GLYPH_FROM_GLYPH (*border, right_border_glyph);
}
+#if GLYPH_DEBUG
/* Window row window_y must be a slice of frame row
frame_y. */
xassert (glyph_row_slice_p (window_row, frame_row));
/* If rows are in sync, we don't have to copy glyphs because
frame and window share glyphs. */
-#if GLYPH_DEBUG
strcpy (w->current_matrix->method, w->desired_matrix->method);
add_window_display_history (w, w->current_matrix->method, 0);
#endif
}
}
+/* Given a user-specified glyph, possibly including a Lisp-level face
+ ID, return a glyph that has a realized face ID.
+ This is used for glyphs displayed specially and not part of the text;
+ for instance, vertical separators, truncation markers, etc. */
+
+GLYPH
+spec_glyph_lookup_face (w, glyph)
+ struct window *w;
+ GLYPH glyph;
+{
+ int lface_id = FAST_GLYPH_FACE (glyph);
+ /* Convert the glyph's specified face to a realized (cache) face. */
+ if (lface_id > 0)
+ {
+ int face_id = merge_faces (XFRAME (w->frame),
+ Qt, lface_id, DEFAULT_FACE_ID);
+ glyph
+ = FAST_MAKE_GLYPH (FAST_GLYPH_CHAR (glyph), face_id);
+ }
+ return glyph;
+}
/* Add spaces to a glyph row ROW in a window matrix.
struct glyph_matrix *m2;
int m2_from;
- w2 = frame_row_to_window (root, frame_to);
- m2 = w2->current_matrix;
- m2_from = frame_from - m2->matrix_y;
- copy_row_except_pointers (m->rows + window_to,
- m2->rows + m2_from);
-
- /* If frame line is empty, window line is empty, too. */
- if (!retained_p[copy_from[i]])
- m->rows[window_to].enabled_p = 0;
+ w2 = frame_row_to_window (root, frame_from);
+ /* ttn@surf.glug.org: when enabling menu bar using `emacs
+ -nw', FROM_FRAME sometimes has no associated window.
+ This check avoids a segfault if W2 is null. */
+ if (w2)
+ {
+ m2 = w2->current_matrix;
+ m2_from = frame_from - m2->matrix_y;
+ copy_row_except_pointers (m->rows + window_to,
+ m2->rows + m2_from);
+
+ /* If frame line is empty, window line is empty, too. */
+ if (!retained_p[copy_from[i]])
+ m->rows[window_to].enabled_p = 0;
+ }
sync_p = 1;
}
else if (from_inside_window_p)
struct window *w;
int hpos;
{
- struct frame *f = XFRAME (w->frame);
-
- xassert (!FRAME_WINDOW_P (f));
+ xassert (!FRAME_WINDOW_P (XFRAME (w->frame)));
hpos += WINDOW_LEFT_EDGE_COL (w);
return hpos;
}
/* Can't do it in a continued line because continuation
lines would change. */
(glyph_row->continued_p
+ || glyph_row->exact_window_width_line_p
/* Can't use this method if the line overlaps others or is
overlapped by others because these other lines would
have to be redisplayed. */
cursor_to (y, x);
}
+#ifdef HAVE_WINDOW_SYSTEM
+ update_window_fringes (w, 0);
+#endif
+
if (rif)
rif->update_window_end_hook (w, 1, 0);
update_end (f);
paused_p = update_window_tree (root_window, force_p);
update_end (f);
-#if 0 /* This flush is a performance bottleneck under X,
- and it doesn't seem to be necessary anyway. */
- rif->flush_display (f);
-#endif
+ /* This flush is a performance bottleneck under X,
+ and it doesn't seem to be necessary anyway (in general).
+ It is necessary when resizing the window with the mouse, or
+ at least the fringes are not redrawn in a timely manner. ++kfs */
+ if (f->force_flush_display_p)
+ {
+ rif->flush_display (f);
+ f->force_flush_display_p = 0;
+ }
}
else
{
}
}
+#ifdef HAVE_WINDOW_SYSTEM
/* Redraw lines from the current matrix of window W that are
overlapped by other rows. YB is bottom-most y-position in W. */
if (row->overlapping_p && i > 0 && bottom_y < yb)
{
- if (row->used[LEFT_MARGIN_AREA])
- rif->fix_overlapping_area (w, row, LEFT_MARGIN_AREA);
-
- if (row->used[TEXT_AREA])
- rif->fix_overlapping_area (w, row, TEXT_AREA);
-
- if (row->used[RIGHT_MARGIN_AREA])
- rif->fix_overlapping_area (w, row, RIGHT_MARGIN_AREA);
-
- /* Record in neighbour rows that ROW overwrites part of their
- display. */
- if (row->phys_ascent > row->ascent && i > 0)
- MATRIX_ROW (w->current_matrix, i - 1)->overlapped_p = 1;
- if ((row->phys_height - row->phys_ascent
- > row->height - row->ascent)
- && bottom_y < yb)
- MATRIX_ROW (w->current_matrix, i + 1)->overlapped_p = 1;
+ int overlaps = 0;
+
+ if (MATRIX_ROW_OVERLAPS_PRED_P (row)
+ && !MATRIX_ROW (w->current_matrix, i - 1)->overlapped_p)
+ overlaps |= OVERLAPS_PRED;
+ if (MATRIX_ROW_OVERLAPS_SUCC_P (row)
+ && !MATRIX_ROW (w->current_matrix, i + 1)->overlapped_p)
+ overlaps |= OVERLAPS_SUCC;
+
+ if (overlaps)
+ {
+ if (row->used[LEFT_MARGIN_AREA])
+ rif->fix_overlapping_area (w, row, LEFT_MARGIN_AREA, overlaps);
+
+ if (row->used[TEXT_AREA])
+ rif->fix_overlapping_area (w, row, TEXT_AREA, overlaps);
+
+ if (row->used[RIGHT_MARGIN_AREA])
+ rif->fix_overlapping_area (w, row, RIGHT_MARGIN_AREA, overlaps);
+
+ /* Record in neighbour rows that ROW overwrites part of
+ their display. */
+ if (overlaps & OVERLAPS_PRED)
+ MATRIX_ROW (w->current_matrix, i - 1)->overlapped_p = 1;
+ if (overlaps & OVERLAPS_SUCC)
+ MATRIX_ROW (w->current_matrix, i + 1)->overlapped_p = 1;
+ }
}
if (bottom_y >= yb)
}
}
+#endif /* HAVE_WINDOW_SYSTEM */
+
#ifdef GLYPH_DEBUG
extern int input_pending;
extern Lisp_Object do_mouse_tracking;
#if GLYPH_DEBUG
- struct frame *f = XFRAME (WINDOW_FRAME (w));
-#endif
-
/* Check that W's frame doesn't have glyph matrices. */
- xassert (FRAME_WINDOW_P (f));
+ xassert (FRAME_WINDOW_P (XFRAME (WINDOW_FRAME (w))));
xassert (updating_frame != NULL);
+#endif
/* Check pending input the first time so that we can quickly return. */
if (redisplay_dont_pause)
force_p = 1;
else
- detect_input_pending ();
+ detect_input_pending_ignore_squeezables ();
/* If forced to complete the update, or if no input is pending, do
the update. */
update_window_line (w, MATRIX_ROW_VPOS (mode_line_row,
desired_matrix),
&mouse_face_overwritten_p);
- changed_p = 1;
}
/* Find first enabled row. Optimizations in redisplay_internal
goto set_cursor;
}
else if (rc > 0)
- /* We've scrolled the display. */
- force_p = 1;
- changed_p = 1;
- }
-
- /* Update the header line after scrolling because a new header
- line would otherwise overwrite lines at the top of the window
- that can be scrolled. */
- if (header_line_row && header_line_row->enabled_p)
- {
- header_line_row->y = 0;
- update_window_line (w, 0, &mouse_face_overwritten_p);
- changed_p = 1;
+ {
+ /* We've scrolled the display. */
+ force_p = 1;
+ changed_p = 1;
+ }
}
/* Update the rest of the lines. */
scrolling large windows with repeated scroll-up
commands will too quickly pause redisplay. */
if (!force_p && ++n_updated % preempt_count == 0)
- detect_input_pending ();
+ detect_input_pending_ignore_squeezables ();
changed_p |= update_window_line (w, vpos,
&mouse_face_overwritten_p);
set_cursor:
+ /* Update the header line after scrolling because a new header
+ line would otherwise overwrite lines at the top of the window
+ that can be scrolled. */
+ if (header_line_row && header_line_row->enabled_p)
+ {
+ header_line_row->y = 0;
+ update_window_line (w, 0, &mouse_face_overwritten_p);
+ }
+
/* Fix the appearance of overlapping/overlapped rows. */
if (!paused_p && !w->pseudo_window_p)
{
+#ifdef HAVE_WINDOW_SYSTEM
if (changed_p && rif->fix_overlapping_area)
{
redraw_overlapped_rows (w, yb);
redraw_overlapping_rows (w, yb);
}
+#endif
/* Make cursor visible at cursor position of W. */
set_window_cursor_after_update (w);
strcpy (w->current_matrix->method, w->desired_matrix->method);
#endif
+#ifdef HAVE_WINDOW_SYSTEM
+ update_window_fringes (w, 0);
+#endif
+
/* End the update of window W. Don't set the cursor if we
paused updating the display because in this case,
set_window_cursor_after_update hasn't been called, and
int overlapping_glyphs_p = current_row->contains_overlapping_glyphs_p;
int desired_stop_pos = desired_row->used[TEXT_AREA];
- /* If the desired row extends its face to the text area end,
+ /* If the desired row extends its face to the text area end, and
+ unless the current row also does so at the same position,
make sure we write at least one glyph, so that the face
extension actually takes place. */
- if (MATRIX_ROW_EXTENDS_FACE_P (desired_row))
+ if (MATRIX_ROW_EXTENDS_FACE_P (desired_row)
+ && (desired_stop_pos < current_row->used[TEXT_AREA]
+ || (desired_stop_pos == current_row->used[TEXT_AREA]
+ && !MATRIX_ROW_EXTENDS_FACE_P (current_row))))
--desired_stop_pos;
stop = min (current_row->used[TEXT_AREA], desired_stop_pos);
has to be cleared, if and only if we did a write_glyphs
above. This is made sure by setting desired_stop_pos
appropriately above. */
- xassert (i < desired_row->used[TEXT_AREA]);
+ xassert (i < desired_row->used[TEXT_AREA]
+ || ((desired_row->used[TEXT_AREA]
+ == current_row->used[TEXT_AREA])
+ && MATRIX_ROW_EXTENDS_FACE_P (current_row)));
}
else if (MATRIX_ROW_EXTENDS_FACE_P (current_row))
{
if (!current_row->enabled_p
|| desired_row->y != current_row->y
|| desired_row->visible_height != current_row->visible_height
- || desired_row->overlay_arrow_p != current_row->overlay_arrow_p
- || desired_row->truncated_on_left_p != current_row->truncated_on_left_p
- || desired_row->truncated_on_right_p != current_row->truncated_on_right_p
- || desired_row->continued_p != current_row->continued_p
+ || desired_row->cursor_in_fringe_p != current_row->cursor_in_fringe_p
+ || desired_row->overlay_arrow_bitmap != current_row->overlay_arrow_bitmap
+ || current_row->redraw_fringe_bitmaps_p
|| desired_row->mode_line_p != current_row->mode_line_p
- || (desired_row->indicate_empty_line_p
- != current_row->indicate_empty_line_p)
+ || desired_row->exact_window_width_line_p != current_row->exact_window_width_line_p
|| (MATRIX_ROW_CONTINUATION_LINE_P (desired_row)
!= MATRIX_ROW_CONTINUATION_LINE_P (current_row)))
rif->after_update_window_line_hook (desired_row);
if (c->enabled_p
&& d->enabled_p
+ && !d->redraw_fringe_bitmaps_p
&& c->y == d->y
&& MATRIX_ROW_BOTTOM_Y (c) <= yb
&& MATRIX_ROW_BOTTOM_Y (d) <= yb
&& MATRIX_ROW (current_matrix, i - 1)->enabled_p
&& (MATRIX_ROW (current_matrix, i - 1)->y
== MATRIX_ROW (desired_matrix, j - 1)->y)
+ && !MATRIX_ROW (desired_matrix, j - 1)->redraw_fringe_bitmaps_p
&& row_equal_p (w,
MATRIX_ROW (desired_matrix, i - 1),
MATRIX_ROW (current_matrix, j - 1), 1))
to = MATRIX_ROW (current_matrix, r->desired_vpos + j);
from = MATRIX_ROW (desired_matrix, r->desired_vpos + j);
to_overlapped_p = to->overlapped_p;
+ if (!from->mode_line_p && !w->pseudo_window_p
+ && (to->left_fringe_bitmap != from->left_fringe_bitmap
+ || to->right_fringe_bitmap != from->right_fringe_bitmap
+ || to->left_fringe_face_id != from->left_fringe_face_id
+ || to->right_fringe_face_id != from->right_fringe_face_id
+ || to->overlay_arrow_bitmap != from->overlay_arrow_bitmap))
+ from->redraw_fringe_bitmaps_p = 1;
assign_row (to, from);
to->enabled_p = 1, from->enabled_p = 0;
to->overlapped_p = to_overlapped_p;
for (i = 0; i < row_entry_idx; ++i)
row_table[row_entry_pool[i].bucket] = NULL;
- /* Value is non-zero to indicate that we scrolled the display. */
- return 1;
+ /* Value is > 0 to indicate that we scrolled the display. */
+ return nruns;
}
if (redisplay_dont_pause)
force_p = 1;
- else if (!force_p && detect_input_pending ())
+ else if (!force_p && detect_input_pending_ignore_squeezables ())
{
pause = 1;
goto do_pause;
}
if ((i - 1) % preempt_count == 0)
- detect_input_pending ();
+ detect_input_pending_ignore_squeezables ();
update_frame_line (f, i);
}
***********************************************************************/
/* Determine what's under window-relative pixel position (*X, *Y).
- Return in *OBJECT the object (string or buffer) that's there.
- Return in *POS the position in that object. Adjust *X and *Y
- to character positions. */
+ Return the object (string or buffer) that's there.
+ Return in *POS the position in that object.
+ Adjust *X and *Y to character positions. */
-void
-buffer_posn_from_coords (w, x, y, object, pos)
+Lisp_Object
+buffer_posn_from_coords (w, x, y, pos, object, dx, dy, width, height)
struct window *w;
int *x, *y;
- Lisp_Object *object;
struct display_pos *pos;
+ Lisp_Object *object;
+ int *dx, *dy;
+ int *width, *height;
{
struct it it;
struct buffer *old_current_buffer = current_buffer;
struct text_pos startp;
+ Lisp_Object string;
struct glyph_row *row;
+#ifdef HAVE_WINDOW_SYSTEM
+ struct image *img = 0;
+#endif
int x0, x1;
current_buffer = XBUFFER (w->buffer);
move_it_to (&it, -1, x0 + it.first_visible_x, *y, -1,
MOVE_TO_X | MOVE_TO_Y);
+ current_buffer = old_current_buffer;
+
+ *dx = x0 + it.first_visible_x - it.current_x;
+ *dy = *y - it.current_y;
+
+ string = w->buffer;
+ if (STRINGP (it.string))
+ string = it.string;
+ *pos = it.current;
+
+#ifdef HAVE_WINDOW_SYSTEM
+ if (it.what == IT_IMAGE)
+ {
+ if ((img = IMAGE_FROM_ID (it.f, it.image_id)) != NULL
+ && !NILP (img->spec))
+ *object = img->spec;
+ }
+#endif
+
+ if (it.vpos < w->current_matrix->nrows
+ && (row = MATRIX_ROW (w->current_matrix, it.vpos),
+ row->enabled_p))
+ {
+ if (it.hpos < row->used[TEXT_AREA])
+ {
+ struct glyph *glyph = row->glyphs[TEXT_AREA] + it.hpos;
+#ifdef HAVE_WINDOW_SYSTEM
+ if (img)
+ {
+ *dy -= row->ascent - glyph->ascent;
+ *dx += glyph->slice.x;
+ *dy += glyph->slice.y;
+ /* Image slices positions are still relative to the entire image */
+ *width = img->width;
+ *height = img->height;
+ }
+ else
+#endif
+ {
+ *width = glyph->pixel_width;
+ *height = glyph->ascent + glyph->descent;
+ }
+ }
+ else
+ {
+ *width = 0;
+ *height = row->height;
+ }
+ }
+ else
+ {
+ *width = *height = 0;
+ }
+
/* Add extra (default width) columns if clicked after EOL. */
x1 = max(0, it.current_x + it.pixel_width - it.first_visible_x);
if (x0 > x1)
it.hpos += (x0 - x1) / WINDOW_FRAME_COLUMN_WIDTH (w);
- current_buffer = old_current_buffer;
-
- *object = STRINGP (it.string) ? it.string : w->buffer;
- *pos = it.current;
*x = it.hpos;
*y = it.vpos;
+
+ return string;
}
/* Value is the string under window-relative coordinates X/Y in the
- mode or header line of window W, or nil if none. MODE_LINE_P non-zero
- means look at the mode line. *CHARPOS is set to the position in
- the string returned. */
+ mode line or header line (PART says which) of window W, or nil if none.
+ *CHARPOS is set to the position in the string returned. */
Lisp_Object
-mode_line_string (w, x, y, part, charpos)
+mode_line_string (w, part, x, y, charpos, object, dx, dy, width, height)
struct window *w;
- int *x, *y;
enum window_part part;
+ int *x, *y;
int *charpos;
+ Lisp_Object *object;
+ int *dx, *dy;
+ int *width, *height;
{
struct glyph_row *row;
struct glyph *glyph, *end;
- int x0;
+ int x0, y0;
Lisp_Object string = Qnil;
if (part == ON_MODE_LINE)
row = MATRIX_MODE_LINE_ROW (w->current_matrix);
else
row = MATRIX_HEADER_LINE_ROW (w->current_matrix);
-
+ y0 = *y - row->y;
*y = row - MATRIX_FIRST_TEXT_ROW (w->current_matrix);
if (row->mode_line_p && row->enabled_p)
it's the one we were looking for. */
glyph = row->glyphs[TEXT_AREA];
end = glyph + row->used[TEXT_AREA];
- for (x0 = *x; glyph < end && x0 > glyph->pixel_width; ++glyph)
+ for (x0 = *x; glyph < end && x0 >= glyph->pixel_width; ++glyph)
x0 -= glyph->pixel_width;
*x = glyph - row->glyphs[TEXT_AREA];
if (glyph < end)
{
string = glyph->object;
*charpos = glyph->charpos;
+ *width = glyph->pixel_width;
+ *height = glyph->ascent + glyph->descent;
+#ifdef HAVE_WINDOW_SYSTEM
+ if (glyph->type == IMAGE_GLYPH)
+ {
+ struct image *img;
+ img = IMAGE_FROM_ID (WINDOW_XFRAME (w), glyph->u.img_id);
+ if (img != NULL)
+ *object = img->spec;
+ y0 -= row->ascent - glyph->ascent;
+ }
+#endif
}
else
- /* Add extra (default width) columns if clicked after EOL. */
- *x += x0 / WINDOW_FRAME_COLUMN_WIDTH (w);
+ {
+ /* Add extra (default width) columns if clicked after EOL. */
+ *x += x0 / WINDOW_FRAME_COLUMN_WIDTH (w);
+ *width = 0;
+ *height = row->height;
+ }
}
else
- *x = 0;
+ {
+ *x = 0;
+ x0 = 0;
+ *width = *height = 0;
+ }
+
+ *dx = x0;
+ *dy = y0;
return string;
}
the string returned. */
Lisp_Object
-marginal_area_string (w, x, y, part, charpos)
+marginal_area_string (w, part, x, y, charpos, object, dx, dy, width, height)
struct window *w;
- int *x, *y;
enum window_part part;
+ int *x, *y;
int *charpos;
+ Lisp_Object *object;
+ int *dx, *dy;
+ int *width, *height;
{
struct glyph_row *row = w->current_matrix->rows;
struct glyph *glyph, *end;
- int x0, i, wy = *y;
+ int x0, y0, i, wy = *y;
int area;
Lisp_Object string = Qnil;
for (i = 0; row->enabled_p && i < w->current_matrix->nrows; ++i, ++row)
if (wy >= row->y && wy < MATRIX_ROW_BOTTOM_Y (row))
break;
+ y0 = *y - row->y;
*y = row - MATRIX_FIRST_TEXT_ROW (w->current_matrix);
if (row->enabled_p)
it's the one we were looking for. */
if (area == RIGHT_MARGIN_AREA)
x0 = ((WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
- ? WINDOW_LEFT_FRINGE_WIDTH (w)
+ ? WINDOW_LEFT_FRINGE_WIDTH (w)
: WINDOW_TOTAL_FRINGE_WIDTH (w))
+ window_box_width (w, LEFT_MARGIN_AREA)
+ window_box_width (w, TEXT_AREA));
else
x0 = (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
- ? WINDOW_LEFT_FRINGE_WIDTH (w)
+ ? WINDOW_LEFT_FRINGE_WIDTH (w)
: 0);
glyph = row->glyphs[area];
end = glyph + row->used[area];
- for (x0 = *x - x0; glyph < end && x0 > glyph->pixel_width; ++glyph)
+ for (x0 = *x - x0; glyph < end && x0 >= glyph->pixel_width; ++glyph)
x0 -= glyph->pixel_width;
*x = glyph - row->glyphs[area];
if (glyph < end)
{
string = glyph->object;
*charpos = glyph->charpos;
+ *width = glyph->pixel_width;
+ *height = glyph->ascent + glyph->descent;
+#ifdef HAVE_WINDOW_SYSTEM
+ if (glyph->type == IMAGE_GLYPH)
+ {
+ struct image *img;
+ img = IMAGE_FROM_ID (WINDOW_XFRAME (w), glyph->u.img_id);
+ if (img != NULL)
+ *object = img->spec;
+ y0 -= row->ascent - glyph->ascent;
+ x0 += glyph->slice.x;
+ y0 += glyph->slice.y;
+ }
+#endif
}
else
- /* Add extra (default width) columns if clicked after EOL. */
- *x += x0 / WINDOW_FRAME_COLUMN_WIDTH (w);
+ {
+ /* Add extra (default width) columns if clicked after EOL. */
+ *x += x0 / WINDOW_FRAME_COLUMN_WIDTH (w);
+ *width = 0;
+ *height = row->height;
+ }
}
else
- *x = 0;
+ {
+ x0 = 0;
+ *x = 0;
+ *width = *height = 0;
+ }
+
+ *dx = x0;
+ *dy = y0;
return string;
}
#endif
int old_errno = errno;
+ signal (SIGWINCH, window_change_signal);
+ SIGNAL_THREAD_CHECK (signalnum);
+
get_frame_size (&width, &height);
/* The frame size change obviously applies to a termcap-controlled
}
}
- signal (SIGWINCH, window_change_signal);
errno = old_errno;
}
#endif /* SIGWINCH */
#ifndef EMACS_HAS_USECS
if (sec == 0 && usec != 0)
- error ("millisecond `sleep-for' not supported on %s", SYSTEM_TYPE);
+ error ("Millisecond `sleep-for' not supported on %s", SYSTEM_TYPE);
#endif
/* Assure that 0 <= usec < 1000000. */
if (sec < 0 || (sec == 0 && usec == 0))
return Qnil;
- {
- Lisp_Object zero;
-
- XSETFASTINT (zero, 0);
- wait_reading_process_input (sec, usec, zero, 0);
- }
-
- /* We should always have wait_reading_process_input; we have a dummy
- implementation for systems which don't support subprocesses. */
-#if 0
- /* No wait_reading_process_input */
- immediate_quit = 1;
- QUIT;
-
-#ifdef VMS
- sys_sleep (sec);
-#else /* not VMS */
-/* The reason this is done this way
- (rather than defined (H_S) && defined (H_T))
- is because the VMS preprocessor doesn't grok `defined'. */
-#ifdef HAVE_SELECT
- EMACS_GET_TIME (end_time);
- EMACS_SET_SECS_USECS (timeout, sec, usec);
- EMACS_ADD_TIME (end_time, end_time, timeout);
-
- while (1)
- {
- EMACS_GET_TIME (timeout);
- EMACS_SUB_TIME (timeout, end_time, timeout);
- if (EMACS_TIME_NEG_P (timeout)
- || !select (1, 0, 0, 0, &timeout))
- break;
- }
-#else /* not HAVE_SELECT */
- sleep (sec);
-#endif /* HAVE_SELECT */
-#endif /* not VMS */
-
- immediate_quit = 0;
-#endif /* no subprocesses */
+ wait_reading_process_output (sec, usec, 0, 0, Qnil, NULL, 0);
return Qnil;
}
-/* This is just like wait_reading_process_input, except that
+/* This is just like wait_reading_process_output, except that
it does the redisplay.
It's also much like Fsit_for, except that it can be used for
sit_for (sec, usec, reading, display, initial_display)
int sec, usec, reading, display, initial_display;
{
- Lisp_Object read_kbd;
-
swallow_events (display);
- if (detect_input_pending_run_timers (display) || !NILP (Vexecuting_macro))
+ if (detect_input_pending_run_timers (display) || !NILP (Vexecuting_kbd_macro))
return Qnil;
if (initial_display)
gobble_input (0);
#endif
- XSETINT (read_kbd, reading ? -1 : 1);
- wait_reading_process_input (sec, usec, read_kbd, display);
+ wait_reading_process_output (sec, usec, reading ? -1 : 1, display,
+ Qnil, NULL, 0);
return detect_input_pending () ? Qnil : Qt;
}
#ifndef EMACS_HAS_USECS
if (usec != 0 && sec == 0)
- error ("millisecond `sit-for' not supported on %s", SYSTEM_TYPE);
+ error ("Millisecond `sit-for' not supported on %s", SYSTEM_TYPE);
#endif
return sit_for (sec, usec, 0, NILP (nodisp), NILP (nodisp));
/* A vector of size >= 2 * NFRAMES + 3 * NBUFFERS + 1, containing the
session's frames, frame names, buffers, buffer-read-only flags, and
- buffer-modified-flags, and a trailing sentinel (so we don't need to
- add length checks). */
+ buffer-modified-flags. */
static Lisp_Object frame_and_buffer_state;
DEFUN ("frame-or-buffer-changed-p", Fframe_or_buffer_changed_p,
- Sframe_or_buffer_changed_p, 0, 0, 0,
+ Sframe_or_buffer_changed_p, 0, 1, 0,
doc: /* Return non-nil if the frame and buffer state appears to have changed.
-The state variable is an internal vector containing all frames and buffers,
+VARIABLE is a variable name whose value is either nil or a state vector
+that will be updated to contain all frames and buffers,
aside from buffers whose names start with space,
-along with the buffers' read-only and modified flags, which allows a fast
-check to see whether the menu bars might need to be recomputed.
+along with the buffers' read-only and modified flags. This allows a fast
+check to see whether buffer menus might need to be recomputed.
If this function returns non-nil, it updates the internal vector to reflect
-the current state. */)
- ()
+the current state.
+
+If VARIABLE is nil, an internal variable is used. Users should not
+pass nil for VARIABLE. */)
+ (variable)
+ Lisp_Object variable;
{
- Lisp_Object tail, frame, buf;
- Lisp_Object *vecp;
+ Lisp_Object state, tail, frame, buf;
+ Lisp_Object *vecp, *end;
int n;
- vecp = XVECTOR (frame_and_buffer_state)->contents;
+ if (! NILP (variable))
+ {
+ CHECK_SYMBOL (variable);
+ state = Fsymbol_value (variable);
+ if (! VECTORP (state))
+ goto changed;
+ }
+ else
+ state = frame_and_buffer_state;
+
+ vecp = XVECTOR (state)->contents;
+ end = vecp + XVECTOR (state)->size;
+
FOR_EACH_FRAME (tail, frame)
{
+ if (vecp == end)
+ goto changed;
if (!EQ (*vecp++, frame))
goto changed;
+ if (vecp == end)
+ goto changed;
if (!EQ (*vecp++, XFRAME (frame)->name))
goto changed;
}
- /* Check that the buffer info matches.
- No need to test for the end of the vector
- because the last element of the vector is lambda
- and that will always cause a mismatch. */
+ /* Check that the buffer info matches. */
for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail))
{
buf = XCDR (XCAR (tail));
/* Ignore buffers that aren't included in buffer lists. */
if (SREF (XBUFFER (buf)->name, 0) == ' ')
continue;
+ if (vecp == end)
+ goto changed;
if (!EQ (*vecp++, buf))
goto changed;
+ if (vecp == end)
+ goto changed;
if (!EQ (*vecp++, XBUFFER (buf)->read_only))
goto changed;
+ if (vecp == end)
+ goto changed;
if (!EQ (*vecp++, Fbuffer_modified_p (buf)))
goto changed;
}
+ if (vecp == end)
+ goto changed;
/* Detect deletion of a buffer at the end of the list. */
if (EQ (*vecp, Qlambda))
return Qnil;
+
+ /* Come here if we decide the data has changed. */
changed:
- /* Start with 1 so there is room for at least one lambda at the end. */
+ /* Count the size we will need.
+ Start with 1 so there is room for at least one lambda at the end. */
n = 1;
FOR_EACH_FRAME (tail, frame)
n += 2;
for (tail = Vbuffer_alist; CONSP (tail); tail = XCDR (tail))
n += 3;
- /* Reallocate the vector if it's grown, or if it's shrunk a lot. */
- if (n > XVECTOR (frame_and_buffer_state)->size
- || n + 20 < XVECTOR (frame_and_buffer_state)->size / 2)
+ /* Reallocate the vector if data has grown to need it,
+ or if it has shrunk a lot. */
+ if (! VECTORP (state)
+ || n > XVECTOR (state)->size
+ || n + 20 < XVECTOR (state)->size / 2)
/* Add 20 extra so we grow it less often. */
- frame_and_buffer_state = Fmake_vector (make_number (n + 20), Qlambda);
- vecp = XVECTOR (frame_and_buffer_state)->contents;
+ {
+ state = Fmake_vector (make_number (n + 20), Qlambda);
+ if (! NILP (variable))
+ Fset (variable, state);
+ else
+ frame_and_buffer_state = state;
+ }
+
+ /* Record the new data in the (possibly reallocated) vector. */
+ vecp = XVECTOR (state)->contents;
FOR_EACH_FRAME (tail, frame)
{
*vecp++ = frame;
}
/* Fill up the vector with lambdas (always at least one). */
*vecp++ = Qlambda;
- while (vecp - XVECTOR (frame_and_buffer_state)->contents
- < XVECTOR (frame_and_buffer_state)->size)
+ while (vecp - XVECTOR (state)->contents
+ < XVECTOR (state)->size)
*vecp++ = Qlambda;
/* Make sure we didn't overflow the vector. */
- if (vecp - XVECTOR (frame_and_buffer_state)->contents
- > XVECTOR (frame_and_buffer_state)->size)
+ if (vecp - XVECTOR (state)->contents
+ > XVECTOR (state)->size)
abort ();
return Qt;
}
try to use X, and die with an error message if that doesn't work. */
#ifdef HAVE_X_WINDOWS
- if (! display_arg)
+ if (! inhibit_window_system && ! display_arg)
{
char *display;
#ifdef VMS
#endif
display_arg = (display != 0 && *display != 0);
+
+ if (display_arg && !x_display_ok (display))
+ {
+ fprintf (stderr, "Display %s unavailable, simulating -nw\n",
+ display);
+ inhibit_window_system = 1;
+ }
}
if (!inhibit_window_system && display_arg