// 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_FPDFDOC_CPDF_VARIABLETEXT_H_ #define CORE_FPDFDOC_CPDF_VARIABLETEXT_H_ #include <memory> #include <vector> #include "core/fpdfdoc/cpvt_floatrect.h" #include "core/fpdfdoc/cpvt_line.h" #include "core/fpdfdoc/cpvt_lineinfo.h" #include "core/fpdfdoc/cpvt_wordplace.h" #include "core/fpdfdoc/cpvt_wordrange.h" #include "core/fxcrt/fx_coordinates.h" #include "core/fxcrt/fx_string.h" #include "core/fxcrt/fx_system.h" #include "core/fxge/fx_font.h" class CPVT_Word; class CSection; class IPVT_FontMap; struct CPVT_SecProps; struct CPVT_Section; struct CPVT_SectionInfo; struct CPVT_WordInfo; struct CPVT_WordProps; #define VARIABLETEXT_HALF 0.5f class CPDF_VariableText { public: enum class ScriptType { Normal, Super, Sub }; class Iterator { public: explicit Iterator(CPDF_VariableText* pVT); ~Iterator(); bool NextWord(); bool PrevWord(); bool NextLine(); bool PrevLine(); bool NextSection(); bool PrevSection(); bool SetWord(const CPVT_Word& word); bool GetWord(CPVT_Word& word) const; bool GetLine(CPVT_Line& line) const; bool GetSection(CPVT_Section& section) const; bool SetSection(const CPVT_Section& section); void SetAt(int32_t nWordIndex); void SetAt(const CPVT_WordPlace& place); const CPVT_WordPlace& GetAt() const { return m_CurPos; } private: CPVT_WordPlace m_CurPos; CPDF_VariableText* const m_pVT; }; class Provider { public: explicit Provider(IPVT_FontMap* pFontMap); virtual ~Provider(); virtual int32_t GetCharWidth(int32_t nFontIndex, uint16_t word); virtual int32_t GetTypeAscent(int32_t nFontIndex); virtual int32_t GetTypeDescent(int32_t nFontIndex); virtual int32_t GetWordFontIndex(uint16_t word, int32_t charset, int32_t nFontIndex); virtual bool IsLatinWord(uint16_t word); virtual int32_t GetDefaultFontIndex(); private: IPVT_FontMap* const m_pFontMap; }; CPDF_VariableText(); ~CPDF_VariableText(); void SetProvider(CPDF_VariableText::Provider* pProvider); CPDF_VariableText::Iterator* GetIterator(); void SetContentRect(const CPVT_FloatRect& rect); CFX_FloatRect GetContentRect() const; void SetPlateRect(const CFX_FloatRect& rect); const CFX_FloatRect& GetPlateRect() const; void SetAlignment(int32_t nFormat) { m_nAlignment = nFormat; } void SetPasswordChar(uint16_t wSubWord) { m_wSubWord = wSubWord; } void SetLimitChar(int32_t nLimitChar) { m_nLimitChar = nLimitChar; } void SetCharSpace(float fCharSpace) { m_fCharSpace = fCharSpace; } void SetMultiLine(bool bMultiLine) { m_bMultiLine = bMultiLine; } void SetAutoReturn(bool bAuto) { m_bLimitWidth = bAuto; } void SetFontSize(float fFontSize) { m_fFontSize = fFontSize; } void SetCharArray(int32_t nCharArray) { m_nCharArray = nCharArray; } void SetAutoFontSize(bool bAuto) { m_bAutoFontSize = bAuto; } void Initialize(); bool IsValid() const { return m_bInitialized; } void RearrangeAll(); void RearrangePart(const CPVT_WordRange& PlaceRange); void ResetAll(); void SetText(const CFX_WideString& text); CPVT_WordPlace InsertWord(const CPVT_WordPlace& place, uint16_t word, int32_t charset, const CPVT_WordProps* pWordProps); CPVT_WordPlace InsertSection(const CPVT_WordPlace& place, const CPVT_SecProps* pSecProps, const CPVT_WordProps* pWordProps); CPVT_WordPlace InsertText(const CPVT_WordPlace& place, const wchar_t* text); CPVT_WordPlace DeleteWords(const CPVT_WordRange& PlaceRange); CPVT_WordPlace DeleteWord(const CPVT_WordPlace& place); CPVT_WordPlace BackSpaceWord(const CPVT_WordPlace& place); int32_t GetTotalWords() const; float GetFontSize() const { return m_fFontSize; } int32_t GetAlignment() const { return m_nAlignment; } uint16_t GetPasswordChar() const { return GetSubWord(); } int32_t GetCharArray() const { return m_nCharArray; } int32_t GetLimitChar() const { return m_nLimitChar; } bool IsMultiLine() const { return m_bMultiLine; } int32_t GetHorzScale() const { return m_nHorzScale; } float GetCharSpace() const { return m_fCharSpace; } CPVT_WordPlace GetBeginWordPlace() const; CPVT_WordPlace GetEndWordPlace() const; CPVT_WordPlace GetPrevWordPlace(const CPVT_WordPlace& place) const; CPVT_WordPlace GetNextWordPlace(const CPVT_WordPlace& place) const; CPVT_WordPlace SearchWordPlace(const CFX_PointF& point) const; CPVT_WordPlace GetUpWordPlace(const CPVT_WordPlace& place, const CFX_PointF& point) const; CPVT_WordPlace GetDownWordPlace(const CPVT_WordPlace& place, const CFX_PointF& point) const; CPVT_WordPlace GetLineBeginPlace(const CPVT_WordPlace& place) const; CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace& place) const; CPVT_WordPlace GetSectionBeginPlace(const CPVT_WordPlace& place) const; CPVT_WordPlace GetSectionEndPlace(const CPVT_WordPlace& place) const; void UpdateWordPlace(CPVT_WordPlace& place) const; CPVT_WordPlace AdjustLineHeader(const CPVT_WordPlace& place, bool bPrevOrNext) const; int32_t WordPlaceToWordIndex(const CPVT_WordPlace& place) const; CPVT_WordPlace WordIndexToWordPlace(int32_t index) const; uint16_t GetSubWord() const { return m_wSubWord; } float GetPlateWidth() const { return m_rcPlate.right - m_rcPlate.left; } float GetPlateHeight() const { return m_rcPlate.top - m_rcPlate.bottom; } CFX_SizeF GetPlateSize() const; CFX_PointF GetBTPoint() const; CFX_PointF GetETPoint() const; CFX_PointF InToOut(const CFX_PointF& point) const; CFX_PointF OutToIn(const CFX_PointF& point) const; CFX_FloatRect InToOut(const CPVT_FloatRect& rect) const; CPVT_FloatRect OutToIn(const CFX_FloatRect& rect) const; private: friend class CTypeset; friend class CSection; int32_t GetCharWidth(int32_t nFontIndex, uint16_t Word, uint16_t SubWord); int32_t GetTypeAscent(int32_t nFontIndex); int32_t GetTypeDescent(int32_t nFontIndex); int32_t GetWordFontIndex(uint16_t word, int32_t charset, int32_t nFontIndex); int32_t GetDefaultFontIndex(); bool IsLatinWord(uint16_t word); CPVT_WordPlace AddSection(const CPVT_WordPlace& place, const CPVT_SectionInfo& secinfo); CPVT_WordPlace AddLine(const CPVT_WordPlace& place, const CPVT_LineInfo& lineinfo); CPVT_WordPlace AddWord(const CPVT_WordPlace& place, const CPVT_WordInfo& wordinfo); bool GetWordInfo(const CPVT_WordPlace& place, CPVT_WordInfo& wordinfo); bool SetWordInfo(const CPVT_WordPlace& place, const CPVT_WordInfo& wordinfo); bool GetLineInfo(const CPVT_WordPlace& place, CPVT_LineInfo& lineinfo); bool GetSectionInfo(const CPVT_WordPlace& place, CPVT_SectionInfo& secinfo); float GetWordFontSize(const CPVT_WordInfo& WordInfo); float GetWordWidth(int32_t nFontIndex, uint16_t Word, uint16_t SubWord, float fCharSpace, int32_t nHorzScale, float fFontSize, float fWordTail); float GetWordWidth(const CPVT_WordInfo& WordInfo); float GetWordAscent(const CPVT_WordInfo& WordInfo, float fFontSize); float GetWordDescent(const CPVT_WordInfo& WordInfo, float fFontSize); float GetWordAscent(const CPVT_WordInfo& WordInfo); float GetWordDescent(const CPVT_WordInfo& WordInfo); float GetLineAscent(const CPVT_SectionInfo& SecInfo); float GetLineDescent(const CPVT_SectionInfo& SecInfo); float GetFontAscent(int32_t nFontIndex, float fFontSize); float GetFontDescent(int32_t nFontIndex, float fFontSize); int32_t GetWordFontIndex(const CPVT_WordInfo& WordInfo); float GetCharSpace(const CPVT_WordInfo& WordInfo); int32_t GetHorzScale(const CPVT_WordInfo& WordInfo); float GetLineLeading(const CPVT_SectionInfo& SecInfo); float GetLineIndent(const CPVT_SectionInfo& SecInfo); int32_t GetAlignment(const CPVT_SectionInfo& SecInfo); void ClearSectionRightWords(const CPVT_WordPlace& place); bool ClearEmptySection(const CPVT_WordPlace& place); void ClearEmptySections(const CPVT_WordRange& PlaceRange); void LinkLatterSection(const CPVT_WordPlace& place); void ClearWords(const CPVT_WordRange& PlaceRange); CPVT_WordPlace ClearLeftWord(const CPVT_WordPlace& place); CPVT_WordPlace ClearRightWord(const CPVT_WordPlace& place); CPVT_FloatRect Rearrange(const CPVT_WordRange& PlaceRange); float GetAutoFontSize(); bool IsBigger(float fFontSize) const; CPVT_FloatRect RearrangeSections(const CPVT_WordRange& PlaceRange); std::vector<std::unique_ptr<CSection>> m_SectionArray; int32_t m_nLimitChar; int32_t m_nCharArray; bool m_bMultiLine; bool m_bLimitWidth; bool m_bAutoFontSize; int32_t m_nAlignment; float m_fLineLeading; float m_fCharSpace; int32_t m_nHorzScale; uint16_t m_wSubWord; float m_fFontSize; bool m_bInitialized; CPDF_VariableText::Provider* m_pVTProvider; std::unique_ptr<CPDF_VariableText::Iterator> m_pVTIterator; CFX_FloatRect m_rcPlate; CPVT_FloatRect m_rcContent; }; #endif // CORE_FPDFDOC_CPDF_VARIABLETEXT_H_