// Copyright 2016 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FPDFDOC_INCLUDE_CPDF_VARIABLETEXT_H_
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#define CORE_FPDFDOC_INCLUDE_CPDF_VARIABLETEXT_H_
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#include <memory>
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#include "core/fpdfdoc/cpvt_floatrect.h"
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#include "core/fpdfdoc/cpvt_lineinfo.h"
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#include "core/fpdfdoc/include/cpvt_line.h"
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#include "core/fpdfdoc/include/cpvt_wordplace.h"
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#include "core/fpdfdoc/include/cpvt_wordrange.h"
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#include "core/fpdfdoc/pdf_vt.h"
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#include "core/fxcrt/include/fx_coordinates.h"
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#include "core/fxcrt/include/fx_string.h"
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#include "core/fxcrt/include/fx_system.h"
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#include "core/fxge/include/fx_font.h"
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class CSection;
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class IPVT_FontMap;
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struct CPVT_SecProps;
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struct CPVT_Section;
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struct CPVT_SectionInfo;
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struct CPVT_Word;
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struct CPVT_WordInfo;
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struct CPVT_WordProps;
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#define VARIABLETEXT_HALF 0.5f
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class CPDF_VariableText : private CPDF_EditContainer {
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public:
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enum class ScriptType { Normal, Super, Sub };
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class Iterator {
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public:
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explicit Iterator(CPDF_VariableText* pVT);
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~Iterator();
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FX_BOOL NextWord();
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FX_BOOL PrevWord();
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FX_BOOL NextLine();
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FX_BOOL PrevLine();
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FX_BOOL NextSection();
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FX_BOOL PrevSection();
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FX_BOOL SetWord(const CPVT_Word& word);
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FX_BOOL GetWord(CPVT_Word& word) const;
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FX_BOOL GetLine(CPVT_Line& line) const;
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FX_BOOL GetSection(CPVT_Section& section) const;
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FX_BOOL SetSection(const CPVT_Section& section);
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void SetAt(int32_t nWordIndex);
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void SetAt(const CPVT_WordPlace& place);
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const CPVT_WordPlace& GetAt() const { return m_CurPos; }
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private:
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CPVT_WordPlace m_CurPos;
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CPDF_VariableText* const m_pVT;
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};
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class Provider {
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public:
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explicit Provider(IPVT_FontMap* pFontMap);
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virtual ~Provider();
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virtual int32_t GetCharWidth(int32_t nFontIndex,
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uint16_t word,
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int32_t nWordStyle);
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virtual int32_t GetTypeAscent(int32_t nFontIndex);
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virtual int32_t GetTypeDescent(int32_t nFontIndex);
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virtual int32_t GetWordFontIndex(uint16_t word,
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int32_t charset,
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int32_t nFontIndex);
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virtual FX_BOOL IsLatinWord(uint16_t word);
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virtual int32_t GetDefaultFontIndex();
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private:
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IPVT_FontMap* const m_pFontMap;
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};
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CPDF_VariableText();
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~CPDF_VariableText() override;
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void SetProvider(CPDF_VariableText::Provider* pProvider);
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CPDF_VariableText::Iterator* GetIterator();
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// CPDF_EditContainer.
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void SetPlateRect(const CFX_FloatRect& rect) override;
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CFX_FloatRect GetContentRect() const override;
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const CFX_FloatRect& GetPlateRect() const override;
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void SetAlignment(int32_t nFormat = 0) { m_nAlignment = nFormat; }
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void SetPasswordChar(uint16_t wSubWord = '*') { m_wSubWord = wSubWord; }
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void SetLimitChar(int32_t nLimitChar = 0) { m_nLimitChar = nLimitChar; }
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void SetCharSpace(FX_FLOAT fCharSpace = 0.0f) { m_fCharSpace = fCharSpace; }
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void SetHorzScale(int32_t nHorzScale = 100) { m_nHorzScale = nHorzScale; }
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void SetMultiLine(FX_BOOL bMultiLine = TRUE) { m_bMultiLine = bMultiLine; }
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void SetAutoReturn(FX_BOOL bAuto = TRUE) { m_bLimitWidth = bAuto; }
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void SetFontSize(FX_FLOAT fFontSize) { m_fFontSize = fFontSize; }
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void SetCharArray(int32_t nCharArray = 0) { m_nCharArray = nCharArray; }
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void SetAutoFontSize(FX_BOOL bAuto = TRUE) { m_bAutoFontSize = bAuto; }
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void SetLineLeading(FX_FLOAT fLineLeading) { m_fLineLeading = fLineLeading; }
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void Initialize();
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FX_BOOL IsValid() const { return m_bInitial; }
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void RearrangeAll();
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void RearrangePart(const CPVT_WordRange& PlaceRange);
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void ResetAll();
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void SetText(const FX_WCHAR* text,
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int32_t charset = FXFONT_DEFAULT_CHARSET,
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const CPVT_SecProps* pSecProps = nullptr,
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const CPVT_WordProps* pWordProps = nullptr);
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CPVT_WordPlace InsertWord(const CPVT_WordPlace& place,
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uint16_t word,
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int32_t charset = FXFONT_DEFAULT_CHARSET,
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const CPVT_WordProps* pWordProps = nullptr);
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CPVT_WordPlace InsertSection(const CPVT_WordPlace& place,
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const CPVT_SecProps* pSecProps = nullptr,
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const CPVT_WordProps* pWordProps = nullptr);
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CPVT_WordPlace InsertText(const CPVT_WordPlace& place,
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const FX_WCHAR* text,
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int32_t charset = FXFONT_DEFAULT_CHARSET,
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const CPVT_SecProps* pSecProps = nullptr,
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const CPVT_WordProps* pWordProps = nullptr);
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CPVT_WordPlace DeleteWords(const CPVT_WordRange& PlaceRange);
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CPVT_WordPlace DeleteWord(const CPVT_WordPlace& place);
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CPVT_WordPlace BackSpaceWord(const CPVT_WordPlace& place);
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int32_t GetTotalWords() const;
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FX_FLOAT GetFontSize() const { return m_fFontSize; }
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int32_t GetAlignment() const { return m_nAlignment; }
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uint16_t GetPasswordChar() const { return GetSubWord(); }
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int32_t GetCharArray() const { return m_nCharArray; }
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int32_t GetLimitChar() const { return m_nLimitChar; }
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FX_BOOL IsMultiLine() const { return m_bMultiLine; }
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int32_t GetHorzScale() const { return m_nHorzScale; }
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FX_FLOAT GetCharSpace() const { return m_fCharSpace; }
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CPVT_WordPlace GetBeginWordPlace() const;
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CPVT_WordPlace GetEndWordPlace() const;
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CPVT_WordPlace GetPrevWordPlace(const CPVT_WordPlace& place) const;
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CPVT_WordPlace GetNextWordPlace(const CPVT_WordPlace& place) const;
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CPVT_WordPlace SearchWordPlace(const CFX_FloatPoint& point) const;
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CPVT_WordPlace GetUpWordPlace(const CPVT_WordPlace& place,
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const CFX_FloatPoint& point) const;
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CPVT_WordPlace GetDownWordPlace(const CPVT_WordPlace& place,
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const CFX_FloatPoint& point) const;
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CPVT_WordPlace GetLineBeginPlace(const CPVT_WordPlace& place) const;
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CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace& place) const;
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CPVT_WordPlace GetSectionBeginPlace(const CPVT_WordPlace& place) const;
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CPVT_WordPlace GetSectionEndPlace(const CPVT_WordPlace& place) const;
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void UpdateWordPlace(CPVT_WordPlace& place) const;
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CPVT_WordPlace AdjustLineHeader(const CPVT_WordPlace& place,
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FX_BOOL bPrevOrNext) const;
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int32_t WordPlaceToWordIndex(const CPVT_WordPlace& place) const;
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CPVT_WordPlace WordIndexToWordPlace(int32_t index) const;
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uint16_t GetSubWord() const { return m_wSubWord; }
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private:
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friend class CTypeset;
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friend class CSection;
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int32_t GetCharWidth(int32_t nFontIndex,
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uint16_t Word,
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uint16_t SubWord,
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int32_t nWordStyle);
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int32_t GetTypeAscent(int32_t nFontIndex);
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int32_t GetTypeDescent(int32_t nFontIndex);
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int32_t GetWordFontIndex(uint16_t word, int32_t charset, int32_t nFontIndex);
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int32_t GetDefaultFontIndex();
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FX_BOOL IsLatinWord(uint16_t word);
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CPVT_WordPlace AddSection(const CPVT_WordPlace& place,
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const CPVT_SectionInfo& secinfo);
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CPVT_WordPlace AddLine(const CPVT_WordPlace& place,
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const CPVT_LineInfo& lineinfo);
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CPVT_WordPlace AddWord(const CPVT_WordPlace& place,
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const CPVT_WordInfo& wordinfo);
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FX_BOOL GetWordInfo(const CPVT_WordPlace& place, CPVT_WordInfo& wordinfo);
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FX_BOOL SetWordInfo(const CPVT_WordPlace& place,
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const CPVT_WordInfo& wordinfo);
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FX_BOOL GetLineInfo(const CPVT_WordPlace& place, CPVT_LineInfo& lineinfo);
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FX_BOOL GetSectionInfo(const CPVT_WordPlace& place,
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CPVT_SectionInfo& secinfo);
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FX_FLOAT GetWordFontSize(const CPVT_WordInfo& WordInfo,
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FX_BOOL bFactFontSize = FALSE);
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FX_FLOAT GetWordWidth(int32_t nFontIndex,
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uint16_t Word,
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uint16_t SubWord,
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FX_FLOAT fCharSpace,
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int32_t nHorzScale,
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FX_FLOAT fFontSize,
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FX_FLOAT fWordTail,
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int32_t nWordStyle);
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FX_FLOAT GetWordWidth(const CPVT_WordInfo& WordInfo);
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FX_FLOAT GetWordAscent(const CPVT_WordInfo& WordInfo, FX_FLOAT fFontSize);
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FX_FLOAT GetWordDescent(const CPVT_WordInfo& WordInfo, FX_FLOAT fFontSize);
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FX_FLOAT GetWordAscent(const CPVT_WordInfo& WordInfo,
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FX_BOOL bFactFontSize = FALSE);
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FX_FLOAT GetWordDescent(const CPVT_WordInfo& WordInfo,
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FX_BOOL bFactFontSize = FALSE);
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FX_FLOAT GetLineAscent(const CPVT_SectionInfo& SecInfo);
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FX_FLOAT GetLineDescent(const CPVT_SectionInfo& SecInfo);
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FX_FLOAT GetFontAscent(int32_t nFontIndex, FX_FLOAT fFontSize);
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FX_FLOAT GetFontDescent(int32_t nFontIndex, FX_FLOAT fFontSize);
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int32_t GetWordFontIndex(const CPVT_WordInfo& WordInfo);
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FX_FLOAT GetCharSpace(const CPVT_WordInfo& WordInfo);
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int32_t GetHorzScale(const CPVT_WordInfo& WordInfo);
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FX_FLOAT GetLineLeading(const CPVT_SectionInfo& SecInfo);
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FX_FLOAT GetLineIndent(const CPVT_SectionInfo& SecInfo);
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int32_t GetAlignment(const CPVT_SectionInfo& SecInfo);
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void ClearSectionRightWords(const CPVT_WordPlace& place);
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FX_BOOL ClearEmptySection(const CPVT_WordPlace& place);
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void ClearEmptySections(const CPVT_WordRange& PlaceRange);
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void LinkLatterSection(const CPVT_WordPlace& place);
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void ClearWords(const CPVT_WordRange& PlaceRange);
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CPVT_WordPlace ClearLeftWord(const CPVT_WordPlace& place);
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CPVT_WordPlace ClearRightWord(const CPVT_WordPlace& place);
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CPVT_FloatRect Rearrange(const CPVT_WordRange& PlaceRange);
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FX_FLOAT GetAutoFontSize();
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bool IsBigger(FX_FLOAT fFontSize) const;
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CPVT_FloatRect RearrangeSections(const CPVT_WordRange& PlaceRange);
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void ResetSectionArray();
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CPVT_ArrayTemplate<CSection*> m_SectionArray;
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int32_t m_nLimitChar;
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int32_t m_nCharArray;
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FX_BOOL m_bMultiLine;
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FX_BOOL m_bLimitWidth;
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FX_BOOL m_bAutoFontSize;
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int32_t m_nAlignment;
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FX_FLOAT m_fLineLeading;
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FX_FLOAT m_fCharSpace;
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int32_t m_nHorzScale;
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uint16_t m_wSubWord;
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FX_FLOAT m_fFontSize;
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FX_BOOL m_bInitial;
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CPDF_VariableText::Provider* m_pVTProvider;
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std::unique_ptr<CPDF_VariableText::Iterator> m_pVTIterator;
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};
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#endif // CORE_FPDFDOC_INCLUDE_CPDF_VARIABLETEXT_H_
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