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Diffstat (limited to 'core/fpdfdoc/cpdf_variabletext.h')
| -rw-r--r-- | core/fpdfdoc/cpdf_variabletext.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/core/fpdfdoc/cpdf_variabletext.h b/core/fpdfdoc/cpdf_variabletext.h new file mode 100644 index 0000000000..cc13b33f30 --- /dev/null +++ b/core/fpdfdoc/cpdf_variabletext.h @@ -0,0 +1,245 @@ +// 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 "core/fpdfdoc/cpvt_arraytemplate.h" +#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/include/fx_coordinates.h" +#include "core/fxcrt/include/fx_string.h" +#include "core/fxcrt/include/fx_system.h" +#include "core/fxge/include/fx_font.h" + +class CSection; +class IPVT_FontMap; + +struct CPVT_SecProps; +struct CPVT_Section; +struct CPVT_SectionInfo; +struct CPVT_Word; +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(); + + FX_BOOL NextWord(); + FX_BOOL PrevWord(); + FX_BOOL NextLine(); + FX_BOOL PrevLine(); + FX_BOOL NextSection(); + FX_BOOL PrevSection(); + FX_BOOL SetWord(const CPVT_Word& word); + FX_BOOL GetWord(CPVT_Word& word) const; + FX_BOOL GetLine(CPVT_Line& line) const; + FX_BOOL GetSection(CPVT_Section& section) const; + FX_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 FX_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(FX_FLOAT fCharSpace) { m_fCharSpace = fCharSpace; } + void SetMultiLine(FX_BOOL bMultiLine) { m_bMultiLine = bMultiLine; } + void SetAutoReturn(FX_BOOL bAuto) { m_bLimitWidth = bAuto; } + void SetFontSize(FX_FLOAT fFontSize) { m_fFontSize = fFontSize; } + void SetCharArray(int32_t nCharArray) { m_nCharArray = nCharArray; } + void SetAutoFontSize(FX_BOOL bAuto) { m_bAutoFontSize = bAuto; } + void Initialize(); + + FX_BOOL IsValid() const { return m_bInitial; } + + 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 FX_WCHAR* 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; + FX_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; } + FX_BOOL IsMultiLine() const { return m_bMultiLine; } + int32_t GetHorzScale() const { return m_nHorzScale; } + FX_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_FloatPoint& point) const; + CPVT_WordPlace GetUpWordPlace(const CPVT_WordPlace& place, + const CFX_FloatPoint& point) const; + CPVT_WordPlace GetDownWordPlace(const CPVT_WordPlace& place, + const CFX_FloatPoint& 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, + FX_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; } + + FX_FLOAT GetPlateWidth() const { return m_rcPlate.right - m_rcPlate.left; } + FX_FLOAT GetPlateHeight() const { return m_rcPlate.top - m_rcPlate.bottom; } + CFX_SizeF GetPlateSize() const; + CFX_FloatPoint GetBTPoint() const; + CFX_FloatPoint GetETPoint() const; + + CFX_FloatPoint InToOut(const CFX_FloatPoint& point) const; + CFX_FloatPoint OutToIn(const CFX_FloatPoint& 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(); + FX_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); + FX_BOOL GetWordInfo(const CPVT_WordPlace& place, CPVT_WordInfo& wordinfo); + FX_BOOL SetWordInfo(const CPVT_WordPlace& place, + const CPVT_WordInfo& wordinfo); + FX_BOOL GetLineInfo(const CPVT_WordPlace& place, CPVT_LineInfo& lineinfo); + FX_BOOL GetSectionInfo(const CPVT_WordPlace& place, + CPVT_SectionInfo& secinfo); + FX_FLOAT GetWordFontSize(const CPVT_WordInfo& WordInfo); + FX_FLOAT GetWordWidth(int32_t nFontIndex, + uint16_t Word, + uint16_t SubWord, + FX_FLOAT fCharSpace, + int32_t nHorzScale, + FX_FLOAT fFontSize, + FX_FLOAT fWordTail); + FX_FLOAT GetWordWidth(const CPVT_WordInfo& WordInfo); + FX_FLOAT GetWordAscent(const CPVT_WordInfo& WordInfo, FX_FLOAT fFontSize); + FX_FLOAT GetWordDescent(const CPVT_WordInfo& WordInfo, FX_FLOAT fFontSize); + FX_FLOAT GetWordAscent(const CPVT_WordInfo& WordInfo); + FX_FLOAT GetWordDescent(const CPVT_WordInfo& WordInfo); + FX_FLOAT GetLineAscent(const CPVT_SectionInfo& SecInfo); + FX_FLOAT GetLineDescent(const CPVT_SectionInfo& SecInfo); + FX_FLOAT GetFontAscent(int32_t nFontIndex, FX_FLOAT fFontSize); + FX_FLOAT GetFontDescent(int32_t nFontIndex, FX_FLOAT fFontSize); + int32_t GetWordFontIndex(const CPVT_WordInfo& WordInfo); + FX_FLOAT GetCharSpace(const CPVT_WordInfo& WordInfo); + int32_t GetHorzScale(const CPVT_WordInfo& WordInfo); + FX_FLOAT GetLineLeading(const CPVT_SectionInfo& SecInfo); + FX_FLOAT GetLineIndent(const CPVT_SectionInfo& SecInfo); + int32_t GetAlignment(const CPVT_SectionInfo& SecInfo); + + void ClearSectionRightWords(const CPVT_WordPlace& place); + + FX_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); + FX_FLOAT GetAutoFontSize(); + bool IsBigger(FX_FLOAT fFontSize) const; + CPVT_FloatRect RearrangeSections(const CPVT_WordRange& PlaceRange); + + void ResetSectionArray(); + + CPVT_ArrayTemplate<CSection*> m_SectionArray; + int32_t m_nLimitChar; + int32_t m_nCharArray; + FX_BOOL m_bMultiLine; + FX_BOOL m_bLimitWidth; + FX_BOOL m_bAutoFontSize; + int32_t m_nAlignment; + FX_FLOAT m_fLineLeading; + FX_FLOAT m_fCharSpace; + int32_t m_nHorzScale; + uint16_t m_wSubWord; + FX_FLOAT m_fFontSize; + FX_BOOL m_bInitial; + 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_ |