New font private structures, related to fontsets.

New font private structures, related to fontsets.

1999-11-07  Tor Lillqvist  <tml@iki.fi>

* gdk/win32/gdkprivate.h: New font private structures, related to
fontsets.

* gdk/win32/gdkfont.c: New functions gdk_font_list_new() and
gdk_font_list_free(). On X11, will just be wrappers to
XListFonts() and XFreeFontNames(). On Win32, the code previously
in gtkfontsel.c is now here.

New function gdk_font_xlfd_create(). On X11 will get the FONT
property of the font (for GDK_FONT_FONTs), or call
XBaseFontNameListOfFontSet (for GDK_FONT_FONTSETs), on Win32
builds a XLFD style name from the font information in the LOGFONT
struct(s).

New function gdk_font_xlfd_free(), which correspondingly frees the
string returned by gdk_font_xlfd_create().

Implement fontsets on Win32. Add a function that iterates over a
wide char string and calls a callback function for each substring
of wide chars from the same Unicode subrange (and thus probably
available in the same real font).

Improve the XLFD emulation a bit.

* gdk/win32/gdkim.c (gdk_nmbstowchar_ts): Small bugfix.

* gdk/win32/gdkevents.c: Workaround for suspected bug on Win2k
Beta3, WM_IME_CHAR messages don't seem to contain the composed
multi-byte char as with the Active IMM on Win9x. Oh well, handle
WM_IME_COMPOSITION with GCS_RESULTSTR instead, use
ImmGetCompositionStringW() to get the composed Unicode chars.

* gdk/win32/gdkgc.c
* gdk/win32/gdkdraw.c: Changes needed because of the font private
struct changes.

* gdk/win32/gdk.def: Add the new functions.