fonts_changed_p if past last allocated row.
(append_glyph, append_composite_glyph, produce_image_glyph)
(append_stretch_glyph): Increment ncols_scale_factor and set
fonts_changed_p if current area is full.
margin at top of window.
(try_window_reusing_current_matrix): Calculate proper cursor position
after scrolling up with non-zero scroll margin, as the old cursor
position corresponds to value of PT before executing this command.
(try_window_id): Consider scroll margin at bottom of window too;
otherwise we fail to scroll when hl-line-mode is enabled.
(syms_of_xdisp): Intern and staticpro it.
(calc_line_height_property): New arg total. Set it if
line-spacing property has format (total . VALUE).
(x_produce_glyphs): Ignore line-spacing if line-height is 0.
Handle total line-spacing property.
Initialize override_ascent member.
(append_space_for_newline): Reset override_ascent.
Remove use_default_face.
(calc_line_height_property): New function to calculate value of
line-height and line-spacing properties. Look at overlays, too.
Set override_ascent, override_descent, override_boff members when
using another face than the current face. Float values are now
relative to the frame default font, by default; accept a cons
of ratio and face name to specify value relative to a specific face.
(x_produce_glyphs): Use calc_line_height_property.
Use override_ascent etc. when set to handle different face heights.
A negative line-spacing property value is interpreted as a total
line height, rather than inter-line spacing.
(note_mouse_highlight): Allocate room for 40 overlays initially.
(on_hot_spot_p): Make sure we always return a value.
(Flookup_image_map): Remove unused var ix and iy.
(note_mode_line_or_margin_highlight): Remove unused var `image'.
(syms_of_xdisp): Intern and staticpro it.
(append_space_for_newline): Partially undo 2004-04-25 change;
add default_face_p arg, and restore callers.
Clear it->use_default_face after use.
(x_produce_glyphs): Set default font for ascii char if
it->use_default_font is set. Change line-spacing property to set
just extra line spacing. Handle new line-height property.
Remove DEFAULT_FACE_P arg; always use current face. Callers changed.
(x_produce_glyphs): Handle line-spacing property on newline char.
If value is t, adjust ascent and descent to fit current row height.
If value is an integer or float, set extra_line_spacing to integer
value, or to float value x current line height.
(syms_of_xdisp): Intern and staticpro it.
(pos_visible_p): Return pixel position in new x and y args.
(init_iterator): Reset it->slice info.
(handle_display_prop): Parse (slice ...) property.
(push_it, pop_it): Save/restore slice info.
(make_cursor_line_fully_visible): Fix 2004-04-14 change. Do not
force repositioning of tall row if window is vscrolled, as that
would reset vscroll.
(append_space): Set it->constrain_row_ascent_descent_p to avoid
increasing row height if row is non-empty.
(fill_image_glyph_string): Copy slice info.
(take_vertical_position_into_account): Simplify.
(produce_image_glyph): Handle iterator slice info, setup glyph
slice info. Do not force minimum line height.
(x_produce_glyphs): If it->constrain_row_ascent_descent_p is set,
do not increase height (ascent/descent) of non-empty row when
adding normal character glyph; instead reduce glyph ascent/descent
appropriately; if row is higher than current glyph, adjust glyph
descent/ascent to reposition glyph within the existing row.
Likewise, when char is newline, only set ascent/descent if row is
currently empty.
(note_mouse_highlight): Handle hotspots with sliced image.
height to glyph height when cursor row is not fully visible.
(make_cursor_line_fully_visible): Add FORCE_P arg to return
failure in case row is higher than window. Callers changed.
(try_scrolling): Fix loop in scrolling if last_line_misfit (from Gerd).
Try to scroll partially visible, higher-than-window cursor row.
(redisplay_window): Always try to scroll partially visible,
higher-than-window cursor row - both initially and again with
centering_position = 0.
Clear desired matrix before retrying with centering_position = 0.
(syms_of_xdisp): intern and staticpro it.
(handle_single_display_prop): Allow space display property on all
platforms.
(display_mode_line): Set mode_line_p before displaying line.
(calc_pixel_width_or_height): Declare extern. Add separate :align-to
handling. Remove complex cases for fringes and scroll-bars.
Add left, right, and center alignment positions. Add text (area)
width/height. Return width or height for image specs.
(produce_stretch_glyph): Improve handling of :align-to. Is now
relative to left of text area by default, but other base offsets
can be specified -- also for text lines.
implement and integrate multiple overlay arrows with redisplay.
(syms_of_xdisp): DEFVAR_LISP and initialize it.
(last_arrow_position, last_arrow_string): Replace by properties.
(Qlast_arrow_position, Qlast_arrow_string)
(Qoverlay_arrow_string, Qoverlay_arrow_bitmap): New variables.
(syms_of_xdisp): Intern and staticpro them.
(overlay_arrow_string_or_property, update_overlay_arrows)
(overlay_arrow_in_current_buffer_p, overlay_arrows_changed_p)
(overlay_arrow_at_row): New functions for multiple overlay arrows.
(redisplay_internal): Use them instead of directly accessing
Voverlay_arrow_position etc. for multiple overlay arrows.
(mark_window_display_accurate): Use update_overlay_arrows.
(try_cursor_movement): Use overlay_arrow_in_current_buffer_p.
(try_window_id): Use overlay_arrows_changed_p.
(get_overlay_arrow_glyph_row): Add overlay_arrow_string arg.
(display_line): Use overlay_arrow_at_row to check multiple
overlay arrows, and get relevant overlay-arrow-string and
overlay-arrow-bitmap. Set w->overlay_arrow_bitmap accordingly.
(produce_image_glyph): Set pixel_width = 0 for fringe bitmap.
(syms_of_xdisp): Remove last_arrow_position and last_arrow_string.
right-fringe similar to a display margin image. Specifically,
the characters having the fringe prop are no longer shown, and
we use IT_IMAGE/next_element_from_image with image_id = -1 to
do this. Set fringe bitmap face_id in it->face_id.
(produce_image_glyph): Handle image_id < 0 as "no image" case, but
still realize it->face (i.e. the fringe bitmap face).
(left_bits, right_bits, up_arrow_bits, down_arrow_bits)
(continued_bits, continuation_bits, ov_bits, first_line_bits)
(last_line_bits, filled_box_cursor_bits, hollow_box_cursor_bits)
(bar_cursor_bits, hbar_cursor_bits, zv_bits, hollow_square_bits)
(fringe_bitmaps, draw_fringe_bitmap, draw_row_fringe_bitmaps)
(draw_window_fringes, compute_fringe_widths, update_window_fringes):
Move fringe handling vars and code to new file fringe.c.
(handle_display_prop): Handle left-fringe and right-fringe
display properties; store user fringe bitmaps in iterator.
(move_it_in_display_line_to): Handle cursor in fringe at eob.
(clear_garbaged_frames): Set force_flush_display_p if resized.
(redisplay_window): Redraw fringe bitmaps if not just_this_one_p.
(display_line): Handle cursor in fringe at eob.
(display_line): Set row user fringe bitmaps from iterator.
Make fringe-drawing stuff compile without a window-system
* src/xdisp.c (Voverflow_newline_into_fringe)
(move_it_in_display_line_to, redisplay_internal)
(update_window_fringes, redisplay_window, display_line, window):
Add `#ifdef HAVE_WINDOW_SYSTEM' around fringe-drawing stuff, so
that it compiles without a window-system.
* src/dispnew.c (direct_output_for_insert, update_window): Likewise.
(IT_OVERFLOW_NEWLINE_INTO_FRINGE): New macro.
(move_it_in_display_line_to): Overflow newline into fringe for
rows that are exactly as wide as the window.
(up_arrow_bits, down_arrow_bits, first_line_bits, last_line_bits)
(filled_box_cursor_bits, hollow_box_cursor_bits, bar_cursor_bits)
(hbar_cursor_bits, hollow_square_bits): New fringe bitmaps.
(fringe_bitmaps): Add new bitmaps.
(draw_fringe_bitmap): Make extern. Remove WHICH arg.
Select proper bitmap for cursor in fringe when appropriate.
Handle alignment of bitmap to top or bottom of row.
(draw_row_fringe_bitmaps): Don't select bitmaps here; that is now
done by update_window_fringes.
(update_window_fringes, draw_window_fringes): New functions.
(redisplay_internal): Call update_window_fringes in case only
cursor row is updated.
(redisplay_window): Call update_window_fringes.
Explicitly call draw_window_fringes if redisplay was done using
the current matrix or the overlay arrow is in the window.
(try_window_reusing_current_matrix): Mark scrolled rows for
fringe update (to update buffer-boundaries / scrolling icons).
(find_last_unchanged_at_beg_row): Handle exact width lines line
continued lines.
(display_line): Overflow newline into fringe for rows that are
exactly as wide as the window. Don't append space for newline
in this case.
(notice_overwritten_cursor): Explicitly clear cursor bitmap
in fringe as if it had been overwritten.
(erase_phys_cursor): Erase cursor bitmap in fringe.
(syms_of_xdisp): Mark show-trailing-whitespace and
void-text-area-pointer as user options.
DEFVAR_LISP Voverflow_newline_into_fringe. Enable by default.
