gecko-dev/gfx/thebes/gfxFT2FontBase.h

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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The Original Code is Mozilla Foundation code.
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 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2009
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 * Contributor(s):
 *   Vladimir Vukicevic <vladimir@mozilla.com>
 *   Masayuki Nakano <masayuki@d-toybox.com>
 *   Behdad Esfahbod <behdad@gnome.org>
 *   Mats Palmgren <mats.palmgren@bredband.net>
 *   Karl Tomlinson <karlt+@karlt.net>, Mozilla Corporation
 *   Takuro Ashie <ashie@clear-code.com>
 *
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#ifndef GFX_FT2FONTBASE_H
#define GFX_FT2FONTBASE_H

#include "cairo.h"
#include "gfxContext.h"
#include "gfxFont.h"

class gfxFT2FontBase : public gfxFont {
public:
    gfxFT2FontBase(cairo_scaled_font_t *aScaledFont,
                   gfxFontEntry *aFontEntry,
                   const gfxFontStyle *aFontStyle);
    virtual ~gfxFT2FontBase();

    PRUint32 GetGlyph(PRUint32 aCharCode);
    void GetGlyphExtents(PRUint32 aGlyph,
                         cairo_text_extents_t* aExtents);
    virtual const gfxFont::Metrics& GetMetrics();
    virtual PRUint32 GetSpaceGlyph();
    virtual hb_blob_t *GetFontTable(PRUint32 aTag);
    virtual PRBool ProvidesGetGlyph() const { return PR_TRUE; }
    virtual PRUint32 GetGlyph(PRUint32 unicode, PRUint32 variation_selector);
    virtual PRBool ProvidesGlyphWidths() { return PR_TRUE; }
    virtual PRInt32 GetGlyphWidth(gfxContext *aCtx, PRUint16 aGID);

    cairo_scaled_font_t *CairoScaledFont() { return mScaledFont; };
    virtual PRBool SetupCairoFont(gfxContext *aContext);

protected:
    cairo_scaled_font_t *mScaledFont;
    PRUint32 mSpaceGlyph;
    PRBool mHasMetrics;
    Metrics mMetrics;
};

#endif /* GFX_FT2FONTBASE_H */