| // 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/cfx_unowned_ptr.h" |
| #include "core/fxcrt/fx_memory.h" |
| #include "core/fxcrt/retain_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_ |