gtk-a-higuti-981202-0.patch

This patch is against gtk+-1.1.5.

This patch is a clean-up/bug-fix version of gtk-a-higuti-980912-0.patch.

This patch adds support for CJK (Chinese, Japanese, and Korean)
locales in the GtkText widget, using wide characters. It changes
the internal representation of text in GtkEntry, too.

Changes:

	* gdk/gdk.c
		(gdk_mbstowcs): New function. Nearly equals to mbstowcs, but
			implemented by a combination of Xlib functions, so
			it works even with X_LOCALE.
		(gdk_wcstombs): New function.
		(g_mbtowc): Removed. No longer needed.
	* gdk/gdk.h
		(gdk_text_width_wc): New prototype.
		(gdk_char_width_wc): New prototype.
		(gdk_draw_text_wc): New prototype.
		(gdk_wcstombs): New prototype.
		(gdk_mbstowcs): New prototype.
	* gdk/gdkdraw.c
		(gdk_draw_text_wc): New function.
	* gdk/gdkfont.c
		(gdk_text_width_wc): New function.
		(gdk_char_width_wc): New function.
	* gdk/gdki18n.h
		(mblen, mbtowc, wctomb, mbstowcs, wcstombs,
		 wcslen, wcscpy, wcsncpy):
			Removed. No longer needed.
		(iswalnum): Removed.
		(gdk_iswalnum): New macro.
		(gdk_iswspace): New macro.
	* gdk/gdktype.h
		(GdkWchar): New typedef.
	* gtk/gtkentry.h, gtk/gtkentry.c
		There are many changes according to the change of the
		internal representation of text, from multibyte string
		to wide characters. 
	* gtk/gtkprivate.h, gtk/gtkmain.c
		Removed the variable gtk_use_mb and related codes.
	* gtk/gtkspinbutton.c
		Some changes according to the change of type of entry->text.
	* gtk/gtktext.h, gtk/gtktext.c
		Changed the internal representation of text. We use GdkWchar
		if a fontset is supplied. If not, we use guchar to save
		memory.