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 * Contributor(s):
 *   Stuart Parmenter <stuart@mozilla.com>
 *   Masayuki Nakano <masayuki@d-toybox.com>
 *   John Daggett <jdaggett@mozilla.com>
 *   Jonathan Kew <jfkthame@gmail.com>
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#ifndef GFX_UNISCRIBESHAPER_H
#define GFX_UNISCRIBESHAPER_H

#include "prtypes.h"
#include "gfxTypes.h"
#include "gfxGDIFont.h"

#include <usp10.h>
#include <cairo-win32.h>


class gfxUniscribeShaper : public gfxFontShaper
{
public:
    gfxUniscribeShaper(gfxGDIFont *aFont)
        : gfxFontShaper(aFont)
        , mScriptCache(NULL)
    {
        MOZ_COUNT_CTOR(gfxUniscribeShaper);
    }

    virtual ~gfxUniscribeShaper()
    {
        MOZ_COUNT_DTOR(gfxUniscribeShaper);
    }

    virtual PRBool InitTextRun(gfxContext *aContext,
                               gfxTextRun *aTextRun,
                               const PRUnichar *aString,
                               PRUint32 aRunStart,
                               PRUint32 aRunLength,
                               PRInt32 aRunScript);

    SCRIPT_CACHE *ScriptCache() { return &mScriptCache; }

    gfxGDIFont *GetFont() { return static_cast<gfxGDIFont*>(mFont); }

private:
    SCRIPT_CACHE mScriptCache;

    enum {
        kUnicodeVS17 = gfxFontUtils::kUnicodeVS17,
        kUnicodeVS256 = gfxFontUtils::kUnicodeVS256
    };
};

#endif /* GFX_UNISCRIBESHAPER_H */