// SPDX-License-Identifier: MIT OR MPL-2.0 OR LGPL-2.1-or-later OR GPL-2.0-or-later // Copyright 2010, SIL International, All rights reserved. #pragma once #include #include "graphite2/Font.h" #include "inc/Main.h" #include "inc/Face.h" namespace graphite2 { #define INVALID_ADVANCE -1e38f // can't be a static const because non-integral class Font { public: Font(float ppm, const Face & face, const void * appFontHandle=0, const gr_font_ops * ops=0); virtual ~Font(); float advance(unsigned short glyphid) const; float scale() const; bool isHinted() const; const Face & face() const; operator bool () const throw() { return m_advances; } CLASS_NEW_DELETE; private: gr_font_ops m_ops; const void * const m_appFontHandle; float * m_advances; // One advance per glyph in pixels. Nan if not defined const Face & m_face; float m_scale; // scales from design units to ppm bool m_hinted; Font(const Font&); Font& operator=(const Font&); }; inline float Font::advance(unsigned short glyphid) const { if (m_advances[glyphid] == INVALID_ADVANCE) m_advances[glyphid] = (*m_ops.glyph_advance_x)(m_appFontHandle, glyphid); return m_advances[glyphid]; } inline float Font::scale() const { return m_scale; } inline bool Font::isHinted() const { return m_hinted; } inline const Face & Font::face() const { return m_face; } } // namespace graphite2 struct gr_font : public graphite2::Font {};