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//========================================================================
//
// CairoFontEngine.h
//
// Copyright 2003 Glyph & Cog, LLC
// Copyright 2004 Red Hat, Inc
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2005, 2018, 2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2006, 2007 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2006, 2010 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2008, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef CAIROFONTENGINE_H
#define CAIROFONTENGINE_H
#include <mutex>
#include "poppler-config.h"
#include <cairo-ft.h>
#include "GfxFont.h"
#include "PDFDoc.h"
class CairoFontEngine;
class CairoFont {
public:
CairoFont(Ref refA,
cairo_font_face_t *cairo_font_faceA,
int *codeToGIDA,
unsigned int codeToGIDLenA,
bool substituteA,
bool printingA);
virtual ~CairoFont();
CairoFont(const CairoFont &) = delete;
CairoFont& operator=(const CairoFont &other) = delete;
virtual bool matches(Ref &other, bool printing);
cairo_font_face_t *getFontFace(void);
unsigned long getGlyph(CharCode code, const Unicode *u, int uLen);
double getSubstitutionCorrection(GfxFont *gfxFont);
bool isSubstitute() { return substitute; }
protected:
Ref ref;
cairo_font_face_t *cairo_font_face;
int *codeToGID;
unsigned int codeToGIDLen;
bool substitute;
bool printing;
};
//------------------------------------------------------------------------
class CairoFreeTypeFont : public CairoFont {
public:
static CairoFreeTypeFont *create(GfxFont *gfxFont, XRef *xref, FT_Library lib, bool useCIDs);
~CairoFreeTypeFont() override;
private:
CairoFreeTypeFont(Ref ref, cairo_font_face_t *cairo_font_face,
int *codeToGID, unsigned int codeToGIDLen, bool substitute);
};
//------------------------------------------------------------------------
class CairoType3Font : public CairoFont {
public:
static CairoType3Font *create(GfxFont *gfxFont, PDFDoc *doc,
CairoFontEngine *fontEngine,
bool printing, XRef *xref);
~CairoType3Font() override;
bool matches(Ref &other, bool printing) override;
private:
CairoType3Font(Ref ref,
cairo_font_face_t *cairo_font_face,
int *codeToGID, unsigned int codeToGIDLen,
bool printing, XRef *xref);
};
//------------------------------------------------------------------------
#define cairoFontCacheSize 64
//------------------------------------------------------------------------
// CairoFontEngine
//------------------------------------------------------------------------
class CairoFontEngine {
public:
// Create a font engine.
CairoFontEngine(FT_Library libA);
~CairoFontEngine();
CairoFontEngine(const CairoFontEngine &) = delete;
CairoFontEngine& operator=(const CairoFontEngine &other) = delete;
CairoFont *getFont(GfxFont *gfxFont, PDFDoc *doc, bool printing, XRef *xref);
private:
CairoFont *fontCache[cairoFontCacheSize];
FT_Library lib;
bool useCIDs;
mutable std::recursive_mutex mutex;
};
#endif
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