commit (HEAD): win32 glyph presence detection

From: Tomas Frydrych (tomasfrydrych@yahoo.co.uk)
Date: Sat Jun 21 2003 - 19:14:00 EDT

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    Had a look at the Pango code and based the win32 glyph detection on
    it; it works rather nicely. On win32 we can now take advantage of
    'ff', 'fi', 'fl', and 'ft' ligatures, for instance, but the code
    remains turned off until the glyph detection is implemented on other
    platforms.

    Added complete handling of all absent glyphs to the UT_contextGlyph
    class, so that once the glyph presence detection is implemented on
    other platforms we will be able to remove GR_Graphics::remapGlyph().

    files: ut_contextGlyph.h/cpp, gr_Graphics.cpp, gr_Win32Graphics.cpp,
    gr_Win32CharWidths.h/cpp

    Tomas

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