(w32_mouse_position): Use it.
(note_mouse_movement): If the mouse moved off the glyph, remember its
new position.
Sync with xterm.c:
(notice_overwritten_cursor): Renamed from note_overwritten_text_cursor.
Rewritten to take glyph widths into account.
(x_y_to_hpos_vpos): Add parameter BUFFER_ONLY_P.
(fast_find_string_pos): New function.
(fast_find_position): Return the correct vpos. Add parameter STOP.
In the final row, stop before glyphs having STOP as object.
Don't consider glyphs that are not from a buffer.
(fast_find_position) [0]: Add a presumably more correct version for after 21.1.
(expose_window_tree, expose_frame): Don't compute intersections here.
(expose_window): Do it here instead.
(expose_window_tree, expose_window, expose_line): Return 1 when
overwriting mouse-face.
(expose_window): If W is the window currently being updated, mark
the frame garbaged.
(expose_frame): If mouse-face was overwritten, redo it.
(x_use_underline_position_properties): New variable.
(syms_of_xterm): DEFVAR_BOOL it.
(x_draw_glyph_string): Add comment to use it in future.
(x_draw_glyph_string): Restore clipping after drawing box.
Fix a computation of the underline position.
(w32_get_glyph_string_clip_rect): Minor cleanup.
(x_fill_stretch_glyph_string): Remove an assertion.
(x_produce_glyphs): Don't convert multibyte characters
to unibyte characters in unibyte buffers.
(cursor_in_mouse_face_p): New function.
(x_draw_stretch_glyph_string): Use it to choose a different GC
when drawing a cursor within highlighted text. Don't draw
background again if it has already been drawn.
(x_draw_glyph_string_box): Don't draw a full-width
box just because the glyph row's full_width_p flag is set.
(x_draw_glyphs): Fix computation of rightmost x for full-width rows.
(x_dump_glyph_string): Put in #if GLYPH_DEBUG.
(w32_draw_relief_rect): Extend left shadow to the bottom and left;
change bottom shadow accordingly. Some cleanup.
(x_update_window_end): Handle overwritten mouse face
also for tool bar windows.
(show_mouse_face): Set the glyph row's mouse_face_p flag also when
DRAW is DRAW_IMAGE_RAISED.
(clear_mouse_face): Return 1 if text with mouse face was
actually redrawn. Make the function static. Reset
dpyinfo->mouse_face_overlay otherwise note_mouse_highlight might
optimize away highlighting if we pass over that same overlay again.
(note_mouse_highlight): Call mouse_face_overlay_overlaps
to detect a case where we have to highlight a different region
despite not having left the currently highlighted region.
Set mouse_face_overlay in the x_display_info. Avoid changing the
mouse pointer shape when show_mouse_face has already done it, or
there is no need. Handle mouse-face and help-echo in strings.
(glyph_rect): New function.
(w32_mouse_position): Use it to raise the threshold for mouse
movement event generation.
(w32_initialize_display_info): Initialize the x_display_info's
mouse_face_overlay.
(w32_set_vertical_scroll_bar): Don't clear a zero height or width area.
(w32_set_vertical_scroll_bar, x_scroll_bar_create): Don't configure
a widget to zero height.
Sync with xfns.c:
(x_laplace_read_row, x_laplace_write_row): Removed.
(postprocess_image): New function.
(lookup_image): Call it for all image types except PostScript.
(x_kill_gs_process): Call postprocess_image.
(tiff_error_handler, tiff_warning_handler): New functions.
(tiff_load): Install them as handlers.
(x_kill_gs_process): Recognize if someone has cleared the image
cache under us.
(valid_image_p): Protect better against invalid image
specifications. Previous code could signal an error.
(Fx_hide_tip, Fshow_tip): Doc fix.
(Fv_max_tooltip_size): New variable.
(syns_of_xfns): DEFVAR_LISP it.
(Fx_show_tip): Add parameter TEXT. Set the tip frame's root
window buffer to *tip* right after creating the frame. Set frame's
window_width. Use a maximum tooltip size specified by
Vx_max_tooltip_size, if that has valid contents.
(compute_tip_xy): Add parameters WIDTH and HEIGHT.
Make sure the tooltip is completely visible.
(x_create_tip_frame): Set tooltip buffer's truncate-lines to nil.
(Fx_create_frame): Adjust the frame's height for presence
of the tool bar before calling x_figure_window_size.
(x_set_tool_bar_lines): Clear the tool bar window's current matrix
when the window gets smaller.
(x_set_foreground_color): Set frame's cursor_pixel.
(x_set_foreground_color, x_set_background_color): Cleaned up.
(x_set_font): Handle case of x_new_fontset returning the same name
as before, although there was a change in fontsets.
Protect unibyte stings created by replacing their multibyte
equivalents in menu_items.
(w32_menu_show): Don't overwrite an item's name with its key
description in case the description is a multibyte string.
(single_submenu): Some cleanup.
(term_init): Don't set them.
Turn off any standout/underline modes that require magic cookies.
(ins_del_lines, highlight_if_desired, background_highlight)
(turn_on_highlight, turn_off_highlight, reset_terminal_modes):
Remove special processing for magic-cookie standout modes.
(turn_off_face, turn_on_face): Remove special processing for
underline magic-cookie glitch.
(internal_terminal_init): Don't set reassert_line_highlight_hook
or change_line_highlight_hook.
(highlight): Variable removed.
(IT_set_face, IT_update_begin, IT_update_end, IT_set_terminal_modes):
Don't set or use it.
(reassert_line_highlight, change_line_highlight): Functions removed.
(standout_requested): Variable removed.
(update_end, highlight_if_desired): Don't use it.
(chars_wasted, copybuf): Variables removed.
(write_standout_marker): Function removed.
(cursor_to, clear_to_end, clear_frame, clear_end_of_line_raw)
(clear_end_of_line_raw, write_glyphs, ins_del_lines):
Don't use `chars_wasted' or `copybuf'.
(calculate_costs): Don't allocate `chars_wasted' or `copybuf'.
Set `costs_set' to true.
(cursor_to, clear_end_of_line): Test `costs_set' instead of `chars_wasted'.
(clear_end_of_line): Function removed.
(clear_end_of_line_raw): Renamed to `clear_end_of_line'.
(clear_to_end): Call `clear_end_of_line' instead of `clear_end_of_line_raw'.
(initialize_w32_display): Don't set reassert_line_highlight_hook
or change_line_highlight_hook.
(hl_mode): Function removed.
(reset_terminal_modes, set_terminal_modes, update_begin)
(update_end, w32_face_attributes, initialize_w32_display):
(clear_frame, ins_del_lines): Don't call it.
