virtual const GlyphID *GetGlyphs() const { return &this->glyphs[0]; }

		virtual const float *GetPositions() const { return &this->positions[0]; }

		virtual const int *GetGlyphToCharMap() const;

		virtual const Font *GetFont() const { return this->font;  }

		virtual int GetLeading() const { return this->font->fc->GetHeight(); }

		virtual int GetGlyphCount() const { return this->num_glyphs; }

		int GetAdvance() const { return this->total_advance; }

	};

	/** A single line worth of VisualRuns. */

	public:

		virtual int GetLeading() const;

		virtual int GetWidth() const;

		virtual int CountRuns() const { return this->size();  }

		virtual const VisualRun *GetVisualRun(int run) const { return this->at(run);  }

		int GetInternalCharLength(WChar c) const

		{

			/* Uniscribe uses UTF-16 internally which means we need to account for surrogate pairs. */

			return c >= 0x010000U ? 2 : 1;

		}

	};