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