// 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_FGAS_GEFONT_H_ #define XFA_FGAS_FONT_FGAS_GEFONT_H_ #include <map> #include "core/fxcrt/fx_memory.h" #include "xfa/fgas/crt/fgas_utils.h" #include "xfa/fgas/font/fgas_font.h" #define FXFONT_SUBST_ITALIC 0x02 class CFX_UnicodeEncoding; class CXFA_PDFFontMgr; class CFGAS_GEFont { public: static CFGAS_GEFont* LoadFont(const FX_WCHAR* pszFontFamily, uint32_t dwFontStyles, uint16_t wCodePage, IFGAS_FontMgr* pFontMgr); static CFGAS_GEFont* LoadFont(CFX_Font* pExternalFont, IFGAS_FontMgr* pFontMgr); static CFGAS_GEFont* LoadFont(std::unique_ptr<CFX_Font> pInternalFont, IFGAS_FontMgr* pFontMgr); #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ static CFGAS_GEFont* LoadFont(const uint8_t* pBuffer, int32_t iLength, IFGAS_FontMgr* pFontMgr); static CFGAS_GEFont* LoadFont(IFX_Stream* pFontStream, IFGAS_FontMgr* pFontMgr, bool bSaveStream); #endif ~CFGAS_GEFont(); void Release(); CFGAS_GEFont* Retain(); CFGAS_GEFont* Derive(uint32_t dwFontStyles, uint16_t wCodePage = 0); void GetFamilyName(CFX_WideString& wsFamily) const; uint32_t GetFontStyles() const; bool GetCharWidth(FX_WCHAR wUnicode, int32_t& iWidth, bool bCharCode); int32_t GetGlyphIndex(FX_WCHAR wUnicode, bool bCharCode = false); int32_t GetAscent() const; int32_t GetDescent() const; bool GetCharBBox(FX_WCHAR wUnicode, CFX_Rect& bbox, bool bCharCode = false); bool GetBBox(CFX_Rect& bbox); int32_t GetItalicAngle() const; void Reset(); CFGAS_GEFont* GetSubstFont(int32_t iGlyphIndex) const; CFX_Font* GetDevFont() const { return m_pFont; } void SetFontProvider(CXFA_PDFFontMgr* pProvider) { m_pProvider = pProvider; } #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ void SetLogicalFontStyle(uint32_t dwLogFontStyle) { m_bUseLogFontStyle = true; m_dwLogFontStyle = dwLogFontStyle; } #endif protected: explicit CFGAS_GEFont(IFGAS_FontMgr* pFontMgr); CFGAS_GEFont(CFGAS_GEFont* src, uint32_t dwFontStyles); #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ bool LoadFontInternal(const FX_WCHAR* pszFontFamily, uint32_t dwFontStyles, uint16_t wCodePage); bool LoadFontInternal(const uint8_t* pBuffer, int32_t length); bool LoadFontInternal(IFX_Stream* pFontStream, bool bSaveStream); #endif bool LoadFontInternal(CFX_Font* pExternalFont); bool LoadFontInternal(std::unique_ptr<CFX_Font> pInternalFont); bool InitFont(); bool GetCharBBoxInternal(FX_WCHAR wUnicode, CFX_Rect& bbox, bool bRecursive, bool bCharCode = false); bool GetCharWidthInternal(FX_WCHAR wUnicode, int32_t& iWidth, bool bRecursive, bool bCharCode); int32_t GetGlyphIndex(FX_WCHAR wUnicode, bool bRecursive, CFGAS_GEFont** ppFont, bool bCharCode = false); #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ bool m_bUseLogFontStyle; uint32_t m_dwLogFontStyle; #endif CFX_Font* m_pFont; CFGAS_GEFont* const m_pSrcFont; IFGAS_FontMgr* const m_pFontMgr; int32_t m_iRefCount; bool m_bExternalFont; std::unique_ptr<IFX_Stream, ReleaseDeleter<IFX_Stream>> m_pStream; std::unique_ptr<IFX_SeekableReadStream, ReleaseDeleter<IFX_SeekableReadStream>> m_pFileRead; std::unique_ptr<CFX_UnicodeEncoding> m_pFontEncoding; std::unique_ptr<CFX_DiscreteArrayTemplate<uint16_t>> m_pCharWidthMap; std::unique_ptr<CFX_MassArrayTemplate<CFX_Rect>> m_pRectArray; std::unique_ptr<CFX_MapPtrToPtr> m_pBBoxMap; CXFA_PDFFontMgr* m_pProvider; // not owned. CFX_ArrayTemplate<CFGAS_GEFont*> m_SubstFonts; std::map<FX_WCHAR, CFGAS_GEFont*> m_FontMapper; }; #endif // XFA_FGAS_FONT_FGAS_GEFONT_H_