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authordsinclair <dsinclair@chromium.org>2016-10-04 11:08:49 -0700
committerCommit bot <commit-bot@chromium.org>2016-10-04 11:08:49 -0700
commitbc5e6d289ed40efec2b0e03427e8fc2947bf53e3 (patch)
treefa1509c1fe1a46a6ebe8861768804883041973be /core/fpdfapi/font/cpdf_font.h
parent241543581696e996093bf0c2ae09ece6afe13ba2 (diff)
downloadpdfium-bc5e6d289ed40efec2b0e03427e8fc2947bf53e3.tar.xz
Move core/fpdfapi/fpdf_font to core/fpdfapi/font
BUG=pdfium:603 Review-Url: https://codereview.chromium.org/2392773003
Diffstat (limited to 'core/fpdfapi/font/cpdf_font.h')
-rw-r--r--core/fpdfapi/font/cpdf_font.h132
1 files changed, 132 insertions, 0 deletions
diff --git a/core/fpdfapi/font/cpdf_font.h b/core/fpdfapi/font/cpdf_font.h
new file mode 100644
index 0000000000..244ab72158
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+++ b/core/fpdfapi/font/cpdf_font.h
@@ -0,0 +1,132 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FPDFAPI_FONT_CPDF_FONT_H_
+#define CORE_FPDFAPI_FONT_CPDF_FONT_H_
+
+#include <memory>
+#include <vector>
+
+#include "core/fxcrt/fx_string.h"
+#include "core/fxcrt/fx_system.h"
+#include "core/fxge/fx_font.h"
+
+#define PDFFONT_FIXEDPITCH 1
+#define PDFFONT_SERIF 2
+#define PDFFONT_SYMBOLIC 4
+#define PDFFONT_SCRIPT 8
+#define PDFFONT_NONSYMBOLIC 32
+#define PDFFONT_ITALIC 64
+#define PDFFONT_ALLCAP 0x10000
+#define PDFFONT_SMALLCAP 0x20000
+#define PDFFONT_FORCEBOLD 0x40000
+#define PDFFONT_USEEXTERNATTR 0x80000
+
+class CFX_SubstFont;
+class CPDF_CIDFont;
+class CPDF_Dictionary;
+class CPDF_Document;
+class CPDF_Object;
+class CPDF_StreamAcc;
+class CPDF_TrueTypeFont;
+class CPDF_Type1Font;
+class CPDF_Type3Font;
+class CPDF_ToUnicodeMap;
+
+class CPDF_Font {
+ public:
+ static std::unique_ptr<CPDF_Font> Create(CPDF_Document* pDoc,
+ CPDF_Dictionary* pFontDict);
+ static CPDF_Font* GetStockFont(CPDF_Document* pDoc,
+ const CFX_ByteStringC& fontname);
+ static const uint32_t kInvalidCharCode = static_cast<uint32_t>(-1);
+
+ virtual ~CPDF_Font();
+
+ virtual bool IsType1Font() const;
+ virtual bool IsTrueTypeFont() const;
+ virtual bool IsType3Font() const;
+ virtual bool IsCIDFont() const;
+ virtual const CPDF_Type1Font* AsType1Font() const;
+ virtual CPDF_Type1Font* AsType1Font();
+ virtual const CPDF_TrueTypeFont* AsTrueTypeFont() const;
+ virtual CPDF_TrueTypeFont* AsTrueTypeFont();
+ virtual const CPDF_Type3Font* AsType3Font() const;
+ virtual CPDF_Type3Font* AsType3Font();
+ virtual const CPDF_CIDFont* AsCIDFont() const;
+ virtual CPDF_CIDFont* AsCIDFont();
+
+ virtual bool IsVertWriting() const;
+ virtual bool IsUnicodeCompatible() const;
+ virtual uint32_t GetNextChar(const FX_CHAR* pString,
+ int nStrLen,
+ int& offset) const;
+ virtual int CountChar(const FX_CHAR* pString, int size) const;
+ virtual int AppendChar(FX_CHAR* buf, uint32_t charcode) const;
+ virtual int GetCharSize(uint32_t charcode) const;
+ virtual int GlyphFromCharCode(uint32_t charcode, bool* pVertGlyph) = 0;
+ virtual int GlyphFromCharCodeExt(uint32_t charcode);
+ virtual CFX_WideString UnicodeFromCharCode(uint32_t charcode) const;
+ virtual uint32_t CharCodeFromUnicode(FX_WCHAR Unicode) const;
+
+ const CFX_ByteString& GetBaseFont() const { return m_BaseFont; }
+ CFX_SubstFont* GetSubstFont() const { return m_Font.GetSubstFont(); }
+ uint32_t GetFlags() const { return m_Flags; }
+ bool IsEmbedded() const { return IsType3Font() || m_pFontFile != nullptr; }
+ CPDF_StreamAcc* GetFontFile() const { return m_pFontFile; }
+ CPDF_Dictionary* GetFontDict() const { return m_pFontDict; }
+ bool IsStandardFont() const;
+ FXFT_Face GetFace() const { return m_Font.GetFace(); }
+ void AppendChar(CFX_ByteString& str, uint32_t charcode) const;
+
+ void GetFontBBox(FX_RECT& rect) const { rect = m_FontBBox; }
+ int GetTypeAscent() const { return m_Ascent; }
+ int GetTypeDescent() const { return m_Descent; }
+ int GetItalicAngle() const { return m_ItalicAngle; }
+ int GetStemV() const { return m_StemV; }
+ int GetStringWidth(const FX_CHAR* pString, int size);
+ uint32_t FallbackFontFromCharcode(uint32_t charcode);
+ int FallbackGlyphFromCharcode(int fallbackFont, uint32_t charcode);
+
+ virtual int GetCharWidthF(uint32_t charcode) = 0;
+ virtual FX_RECT GetCharBBox(uint32_t charcode) = 0;
+
+ CPDF_Document* m_pDocument;
+ CFX_Font m_Font;
+ std::vector<std::unique_ptr<CFX_Font>> m_FontFallbacks;
+
+ protected:
+ CPDF_Font();
+
+ virtual bool Load() = 0;
+
+ void LoadUnicodeMap() const; // logically const only.
+ void LoadPDFEncoding(CPDF_Object* pEncoding,
+ int& iBaseEncoding,
+ std::vector<CFX_ByteString>* pCharNames,
+ bool bEmbedded,
+ bool bTrueType);
+ void LoadFontDescriptor(CPDF_Dictionary* pDict);
+ void CheckFontMetrics();
+
+ const FX_CHAR* GetAdobeCharName(int iBaseEncoding,
+ const std::vector<CFX_ByteString>& charnames,
+ int charcode);
+
+ CFX_ByteString m_BaseFont;
+ CPDF_StreamAcc* m_pFontFile;
+ CPDF_Dictionary* m_pFontDict;
+ mutable std::unique_ptr<CPDF_ToUnicodeMap> m_pToUnicodeMap;
+ mutable bool m_bToUnicodeLoaded;
+ int m_Flags;
+ FX_RECT m_FontBBox;
+ int m_StemV;
+ int m_Ascent;
+ int m_Descent;
+ int m_ItalicAngle;
+};
+
+#endif // CORE_FPDFAPI_FONT_CPDF_FONT_H_