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* xdisp.c (push_it, pop_it): Save and restore line_wrap.
(handle_line_prefix): Suppress wrapping of wrap prefixes.

(IT_write_glyphs): Make screen_buf[] always be MAX_SCREEN_BUF-long.
Encode the entire run of glyphs sharing the same face, instead of
doing that one glyph at a time (fixes a bug with displaying
double-size characters).

* nsfns.m (ns-read-file-name): BLOCK_INPUT while showing dialog. \n \n* nsmenu.m (pop_down_menu): Check popup_activated_flag. \n(ns_popup_dialog, EmacsDialogPanel-runDialogAt:): Let \npop_down_menu do the cleanup work as it is always called. (Bug#2154) \n \n* nsfont.m (nsfont_make_fontset_for_font): For now, don't try to \nset fontset font for 'mathematical-' sub-scripts. (Bug #2218)\n

(add_font_entity_to_list): Call check_face_name even when family
is unspecified.

Release DC when finished.  Use NULL window to refer to desktop.
(w32_term_init): Use NULL window to refer to desktop. (Bug#460)

raster fonts. (Bug#2219)

(composition_gstring_width): Fix handling of LGLYPH_YOFF.
(autocmp_chars): Use fast_looking_at.  Don't compose more
characters than MAX_COMPOSITION_COMPONENST.
(find_automatic_composition): While looking forward and backward,
check static composition.  Fix where to stop looking forward.
(composition_adjust_point): Fix checking of static composition.
(Fcomposition_get_gstring): Pay attention to
MAX_COMPOSITION_COMPONENST.

<struct glyph>.u.cmp.to.
(append_composite_glyph): Likewise.

<struct glyph>.u.cmp.to.  Check if the glyph belongs to the same
composition.
(append_composite_glyph): Adjusted for the change of
<strcut glyph>.u.cmp.to.

when using encoded data.

disappeared while hourglass was displayed. (Bug #2193)

	when modal window is active. (Bug #2152)
	(applicationShouldTerminate:): Remove now-unneeded while loop
	around NSRunAlertPanel.

	* nsmenu.m (popupSession): New file-global variable.
	(pop_down_menu): End the popupSession before closing dialog.
	(ns_popup_dialog): BLOCK_INPUT around dialog presentation.
	(EmacsDialogPanel-runDialogAt:): Don't place window (superfluous),
	don't query NSApp for events (just sleep instead).

discourage use for character code unification.

found (Bug#2147).

  Fix typo in docstring.

(ns_popup_dialog): Call it on unwind.
(EmacsDialogPanel-runDialogAt:): Check popup_activated_flag and
call timer_check() (Bug#2154).
(EmacsMenu-menuNeedsUpdate:): Don't call ns_update_menu if
handling_signal is set.
(EmacsMenu-fillWithWidgetValue:): Set submenu title.

* s/darwin.h: Same and NO_SOCK_SIGIO as well.

* nsterm.m (ns_read_socket): Same and don't set handling_signal.

* keyboard.c (poll_for_input_1, handle_async_input): Set
handling_signal under HAVE_NS.

(composition_gstring_p): Fix for the terminal case.
(composition_gstring_width): Likewise.
(fill_gstring_body): Likewise.
(autocmp_chars): For terminal, call Fcomposition_get_gstring with
the frame.
(composition_compute_stop_pos): Adjust cmp_it->stop_pos if point
is within a composition.
(Fcomposition_get_gstring): Fix the the terminal case.

(produce_composite_glyph): For static composition, get pixel_width
from struct composition.