/* ******************************************************************************* * * © 2016 and later: Unicode, Inc. and others. * License & terms of use: http://www.unicode.org/copyright.html#License * ******************************************************************************* ******************************************************************************* * * Copyright (C) 1999-2006, International Business Machines * Corporation and others. All Rights Reserved. * ******************************************************************************* * file name: GnomeFontInstance.h * * created on: 08/30/2001 * created by: Eric R. Mader */ #ifndef __GNOMEFONTINSTANCE_H #define __GNOMEFONTINSTANCE_H #include <gnome.h> #include <ft2build.h> #include FT_FREETYPE_H #include FT_GLYPH_H #include <cairo.h> #include "layout/LETypes.h" #include "layout/LEFontInstance.h" #include "RenderingSurface.h" #include "FontTableCache.h" #include "cmaps.h" class GnomeSurface : public RenderingSurface { public: GnomeSurface(GtkWidget *theWidget); virtual ~GnomeSurface(); virtual void drawGlyphs(const LEFontInstance *font, const LEGlyphID *glyphs, le_int32 count, const float *positions, le_int32 x, le_int32 y, le_int32 width, le_int32 height); GtkWidget *getWidget() const; void setWidget(GtkWidget *theWidget); private: GtkWidget *fWidget; cairo_t *fCairo; }; class GnomeFontInstance : public LEFontInstance, protected FontTableCache { protected: FT_Face fFace; // FT_Glyph fGlyph; cairo_font_face_t *fCairoFace; le_int32 fPointSize; le_int32 fUnitsPerEM; le_int32 fAscent; le_int32 fDescent; le_int32 fLeading; float fDeviceScaleX; float fDeviceScaleY; CMAPMapper *fMapper; virtual const void *readFontTable(LETag tableTag) const; virtual LEErrorCode initMapper(); public: GnomeFontInstance(FT_Library engine, const char *fontPathName, le_int16 pointSize, LEErrorCode &status); virtual ~GnomeFontInstance(); virtual const void *getFontTable(LETag tableTag) const; virtual le_int32 getUnitsPerEM() const; virtual le_int32 getAscent() const; virtual le_int32 getDescent() const; virtual le_int32 getLeading() const; virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch) const; virtual void getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const; virtual le_bool getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const; float getXPixelsPerEm() const; float getYPixelsPerEm() const; float getScaleFactorX() const; float getScaleFactorY() const; void rasterizeGlyphs(cairo_t *cairo, const LEGlyphID *glyphs, le_int32 glyphCount, const float *positions, le_int32 x, le_int32 y) const; }; inline GtkWidget *GnomeSurface::getWidget() const { return fWidget; } inline void GnomeSurface::setWidget(GtkWidget *theWidget) { fWidget = theWidget; } /* inline FT_Instance GnomeFontInstance::getFont() const { return fInstance; } */ inline le_int32 GnomeFontInstance::getUnitsPerEM() const { return fUnitsPerEM; } inline le_int32 GnomeFontInstance::getAscent() const { return fAscent; } inline le_int32 GnomeFontInstance::getDescent() const { return fDescent; } inline le_int32 GnomeFontInstance::getLeading() const { return fLeading; } inline LEGlyphID GnomeFontInstance::mapCharToGlyph(LEUnicode32 ch) const { return fMapper->unicodeToGlyph(ch); } inline float GnomeFontInstance::getXPixelsPerEm() const { return (float) fPointSize; } inline float GnomeFontInstance::getYPixelsPerEm() const { return (float) fPointSize; } inline float GnomeFontInstance::getScaleFactorX() const { return fDeviceScaleX; } inline float GnomeFontInstance::getScaleFactorY() const { return fDeviceScaleY; } #endif