// Copyright 2014 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 XFA_FGAS_FONT_CFGAS_GEFONT_H_ #define XFA_FGAS_FONT_CFGAS_GEFONT_H_ #include <map> #include <memory> #include <vector> #include "core/fxcrt/fx_memory.h" #include "core/fxcrt/retain_ptr.h" #include "core/fxcrt/unowned_ptr.h" #include "xfa/fgas/font/cfgas_fontmgr.h" #include "xfa/fgas/font/cfgas_pdffontmgr.h" #define FXFONT_SUBST_ITALIC 0x02 class CFGAS_FontMgr; class CFX_UnicodeEncoding; class CFGAS_GEFont : public Retainable { public: template <typename T> friend class RetainPtr; template <typename T, typename... Args> friend RetainPtr<T> pdfium::MakeRetain(Args&&... args); static RetainPtr<CFGAS_GEFont> LoadFont(const wchar_t* pszFontFamily, uint32_t dwFontStyles, uint16_t wCodePage, CFGAS_FontMgr* pFontMgr); static RetainPtr<CFGAS_GEFont> LoadFont(CFX_Font* pExternalFont, CFGAS_FontMgr* pFontMgr); static RetainPtr<CFGAS_GEFont> LoadFont( std::unique_ptr<CFX_Font> pInternalFont, CFGAS_FontMgr* pFontMgr); RetainPtr<CFGAS_GEFont> Derive(uint32_t dwFontStyles, uint16_t wCodePage = 0); uint32_t GetFontStyles() const; bool GetCharWidth(wchar_t wUnicode, int32_t& iWidth, bool bCharCode); int32_t GetGlyphIndex(wchar_t wUnicode, bool bCharCode = false); int32_t GetAscent() const; int32_t GetDescent() const; bool GetCharBBox(wchar_t wUnicode, CFX_Rect* bbox, bool bCharCode = false); bool GetBBox(CFX_Rect* bbox); RetainPtr<CFGAS_GEFont> GetSubstFont(int32_t iGlyphIndex); CFX_Font* GetDevFont() const { return m_pFont; } void SetFontProvider(CFGAS_PDFFontMgr* pProvider) { m_pProvider.Reset(pProvider); } #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ void SetLogicalFontStyle(uint32_t dwLogFontStyle) { m_bUseLogFontStyle = true; m_dwLogFontStyle = dwLogFontStyle; } #endif private: explicit CFGAS_GEFont(CFGAS_FontMgr* pFontMgr); CFGAS_GEFont(const RetainPtr<CFGAS_GEFont>& src, uint32_t dwFontStyles); ~CFGAS_GEFont() override; #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ bool LoadFontInternal(const wchar_t* pszFontFamily, uint32_t dwFontStyles, uint16_t wCodePage); bool LoadFontInternal(const uint8_t* pBuffer, int32_t length); bool LoadFontInternal(const RetainPtr<CFX_SeekableStreamProxy>& pFontStream, bool bSaveStream); #endif bool LoadFontInternal(CFX_Font* pExternalFont); bool LoadFontInternal(std::unique_ptr<CFX_Font> pInternalFont); bool InitFont(); bool GetCharBBoxInternal(wchar_t wUnicode, CFX_Rect* bbox, bool bRecursive, bool bCharCode = false); bool GetCharWidthInternal(wchar_t wUnicode, int32_t& iWidth, bool bRecursive, bool bCharCode); int32_t GetGlyphIndex(wchar_t wUnicode, bool bRecursive, RetainPtr<CFGAS_GEFont>* ppFont, bool bCharCode = false); WideString GetFamilyName() const; #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ bool m_bUseLogFontStyle; uint32_t m_dwLogFontStyle; #endif CFX_Font* m_pFont; bool m_bExternalFont; RetainPtr<CFGAS_GEFont> m_pSrcFont; // Only set by ctor, so no cycles. CFGAS_FontMgr::ObservedPtr m_pFontMgr; CFGAS_PDFFontMgr::ObservedPtr m_pProvider; RetainPtr<CFX_SeekableStreamProxy> m_pStream; RetainPtr<IFX_SeekableReadStream> m_pFileRead; std::unique_ptr<CFX_UnicodeEncoding> m_pFontEncoding; std::map<wchar_t, int32_t> m_CharWidthMap; std::map<wchar_t, CFX_Rect> m_BBoxMap; std::vector<RetainPtr<CFGAS_GEFont>> m_SubstFonts; std::map<wchar_t, RetainPtr<CFGAS_GEFont>> m_FontMapper; }; #endif // XFA_FGAS_FONT_CFGAS_GEFONT_H_