// 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 FPDFSDK_PWL_CPWL_EDIT_IMPL_H_ #define FPDFSDK_PWL_CPWL_EDIT_IMPL_H_ #include <deque> #include <memory> #include <vector> #include "core/fpdfdoc/cpvt_secprops.h" #include "core/fpdfdoc/cpvt_wordprops.h" #include "core/fxcrt/cfx_unowned_ptr.h" #define FX_EDIT_ISLATINWORD(u) \ (u == 0x2D || (u <= 0x005A && u >= 0x0041) || \ (u <= 0x007A && u >= 0x0061) || (u <= 0x02AF && u >= 0x00C0)) class CFFL_FormFiller; class CPWL_EditImpl; class CPWL_EditImpl_Iterator; class CPWL_EditImpl_Provider; class CFX_RenderDevice; class CFX_SystemHandler; class CPWL_Edit; class CPWL_EditCtrl; class IFX_Edit_UndoItem; struct CPWL_EditImpl_LineRect { CPWL_EditImpl_LineRect(const CPVT_WordRange& wrLine, const CFX_FloatRect& rcLine) : m_wrLine(wrLine), m_rcLine(rcLine) {} CPVT_WordRange m_wrLine; CFX_FloatRect m_rcLine; }; class CPWL_EditImpl_LineRectArray { public: CPWL_EditImpl_LineRectArray(); ~CPWL_EditImpl_LineRectArray(); void operator=(CPWL_EditImpl_LineRectArray&& rects); void Add(const CPVT_WordRange& wrLine, const CFX_FloatRect& rcLine); int32_t GetSize() const; CPWL_EditImpl_LineRect* GetAt(int32_t nIndex) const; private: std::vector<std::unique_ptr<CPWL_EditImpl_LineRect>> m_LineRects; }; class CPWL_EditImpl_RectArray { public: CPWL_EditImpl_RectArray(); ~CPWL_EditImpl_RectArray(); void Clear(); void Add(const CFX_FloatRect& rect); int32_t GetSize() const; CFX_FloatRect* GetAt(int32_t nIndex) const; private: std::vector<std::unique_ptr<CFX_FloatRect>> m_Rects; }; class CPWL_EditImpl_Refresh { public: CPWL_EditImpl_Refresh(); ~CPWL_EditImpl_Refresh(); void BeginRefresh(); void Push(const CPVT_WordRange& linerange, const CFX_FloatRect& rect); void NoAnalyse(); const CPWL_EditImpl_RectArray* GetRefreshRects() const; void EndRefresh(); private: CPWL_EditImpl_LineRectArray m_NewLineRects; CPWL_EditImpl_LineRectArray m_OldLineRects; CPWL_EditImpl_RectArray m_RefreshRects; }; class CPWL_EditImpl_Select { public: CPWL_EditImpl_Select(); explicit CPWL_EditImpl_Select(const CPVT_WordRange& range); void Reset(); void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end); void SetEndPos(const CPVT_WordPlace& end); CPVT_WordRange ConvertToWordRange() const; bool IsEmpty() const; CPVT_WordPlace BeginPos; CPVT_WordPlace EndPos; }; class CPWL_EditImpl_Undo { public: CPWL_EditImpl_Undo(); ~CPWL_EditImpl_Undo(); void AddItem(std::unique_ptr<IFX_Edit_UndoItem> pItem); void Undo(); void Redo(); bool CanUndo() const; bool CanRedo() const; private: void RemoveHeads(); void RemoveTails(); std::deque<std::unique_ptr<IFX_Edit_UndoItem>> m_UndoItemStack; size_t m_nCurUndoPos; bool m_bWorking; }; class IFX_Edit_UndoItem { public: virtual ~IFX_Edit_UndoItem() {} virtual void Undo() = 0; virtual void Redo() = 0; }; class CFXEU_InsertWord : public IFX_Edit_UndoItem { public: CFXEU_InsertWord(CPWL_EditImpl* pEdit, const CPVT_WordPlace& wpOldPlace, const CPVT_WordPlace& wpNewPlace, uint16_t word, int32_t charset, const CPVT_WordProps* pWordProps); ~CFXEU_InsertWord() override; // IFX_Edit_UndoItem: void Redo() override; void Undo() override; private: CFX_UnownedPtr<CPWL_EditImpl> m_pEdit; CPVT_WordPlace m_wpOld; CPVT_WordPlace m_wpNew; uint16_t m_Word; int32_t m_nCharset; CPVT_WordProps m_WordProps; }; class CFXEU_InsertReturn : public IFX_Edit_UndoItem { public: CFXEU_InsertReturn(CPWL_EditImpl* pEdit, const CPVT_WordPlace& wpOldPlace, const CPVT_WordPlace& wpNewPlace, const CPVT_SecProps* pSecProps, const CPVT_WordProps* pWordProps); ~CFXEU_InsertReturn() override; // IFX_Edit_UndoItem: void Redo() override; void Undo() override; private: CFX_UnownedPtr<CPWL_EditImpl> m_pEdit; CPVT_WordPlace m_wpOld; CPVT_WordPlace m_wpNew; CPVT_SecProps m_SecProps; CPVT_WordProps m_WordProps; }; class CFXEU_Backspace : public IFX_Edit_UndoItem { public: CFXEU_Backspace(CPWL_EditImpl* pEdit, const CPVT_WordPlace& wpOldPlace, const CPVT_WordPlace& wpNewPlace, uint16_t word, int32_t charset, const CPVT_SecProps& SecProps, const CPVT_WordProps& WordProps); ~CFXEU_Backspace() override; // IFX_Edit_UndoItem: void Redo() override; void Undo() override; private: CFX_UnownedPtr<CPWL_EditImpl> m_pEdit; CPVT_WordPlace m_wpOld; CPVT_WordPlace m_wpNew; uint16_t m_Word; int32_t m_nCharset; CPVT_SecProps m_SecProps; CPVT_WordProps m_WordProps; }; class CFXEU_Delete : public IFX_Edit_UndoItem { public: CFXEU_Delete(CPWL_EditImpl* pEdit, const CPVT_WordPlace& wpOldPlace, const CPVT_WordPlace& wpNewPlace, uint16_t word, int32_t charset, const CPVT_SecProps& SecProps, const CPVT_WordProps& WordProps, bool bSecEnd); ~CFXEU_Delete() override; // IFX_Edit_UndoItem: void Redo() override; void Undo() override; private: CFX_UnownedPtr<CPWL_EditImpl> m_pEdit; CPVT_WordPlace m_wpOld; CPVT_WordPlace m_wpNew; uint16_t m_Word; int32_t m_nCharset; CPVT_SecProps m_SecProps; CPVT_WordProps m_WordProps; bool m_bSecEnd; }; class CFXEU_Clear : public IFX_Edit_UndoItem { public: CFXEU_Clear(CPWL_EditImpl* pEdit, const CPVT_WordRange& wrSel, const CFX_WideString& swText); ~CFXEU_Clear() override; // IFX_Edit_UndoItem: void Redo() override; void Undo() override; private: CFX_UnownedPtr<CPWL_EditImpl> m_pEdit; CPVT_WordRange m_wrSel; CFX_WideString m_swText; }; class CFXEU_InsertText : public IFX_Edit_UndoItem { public: CFXEU_InsertText(CPWL_EditImpl* pEdit, const CPVT_WordPlace& wpOldPlace, const CPVT_WordPlace& wpNewPlace, const CFX_WideString& swText, int32_t charset); ~CFXEU_InsertText() override; // IFX_Edit_UndoItem: void Redo() override; void Undo() override; private: CFX_UnownedPtr<CPWL_EditImpl> m_pEdit; CPVT_WordPlace m_wpOld; CPVT_WordPlace m_wpNew; CFX_WideString m_swText; int32_t m_nCharset; }; class CPWL_EditImpl { public: static void DrawEdit(CFX_RenderDevice* pDevice, const CFX_Matrix& mtUser2Device, CPWL_EditImpl* pEdit, FX_COLORREF crTextFill, const CFX_FloatRect& rcClip, const CFX_PointF& ptOffset, const CPVT_WordRange* pRange, CFX_SystemHandler* pSystemHandler, CFFL_FormFiller* pFFLData); CPWL_EditImpl(); ~CPWL_EditImpl(); void SetFontMap(IPVT_FontMap* pFontMap); void SetNotify(CPWL_EditCtrl* pNotify); void SetOperationNotify(CPWL_Edit* pOperationNotify); // Returns an iterator for the contents. Should not be released. CPWL_EditImpl_Iterator* GetIterator(); IPVT_FontMap* GetFontMap(); void Initialize(); // Set the bounding box of the text area. void SetPlateRect(const CFX_FloatRect& rect); void SetScrollPos(const CFX_PointF& point); // Set the horizontal text alignment. (nFormat [0:left, 1:middle, 2:right]) void SetAlignmentH(int32_t nFormat, bool bPaint); // Set the vertical text alignment. (nFormat [0:left, 1:middle, 2:right]) void SetAlignmentV(int32_t nFormat, bool bPaint); // Set the substitution character for hidden text. void SetPasswordChar(uint16_t wSubWord, bool bPaint); // Set the maximum number of words in the text. void SetLimitChar(int32_t nLimitChar); void SetCharArray(int32_t nCharArray); void SetCharSpace(float fCharSpace); void SetMultiLine(bool bMultiLine, bool bPaint); void SetAutoReturn(bool bAuto, bool bPaint); void SetAutoFontSize(bool bAuto, bool bPaint); void SetAutoScroll(bool bAuto, bool bPaint); void SetFontSize(float fFontSize); void SetTextOverflow(bool bAllowed, bool bPaint); void OnMouseDown(const CFX_PointF& point, bool bShift, bool bCtrl); void OnMouseMove(const CFX_PointF& point, bool bShift, bool bCtrl); void OnVK_UP(bool bShift, bool bCtrl); void OnVK_DOWN(bool bShift, bool bCtrl); void OnVK_LEFT(bool bShift, bool bCtrl); void OnVK_RIGHT(bool bShift, bool bCtrl); void OnVK_HOME(bool bShift, bool bCtrl); void OnVK_END(bool bShift, bool bCtrl); void SetText(const CFX_WideString& sText); bool InsertWord(uint16_t word, int32_t charset); bool InsertReturn(); bool Backspace(); bool Delete(); bool ClearSelection(); bool InsertText(const CFX_WideString& sText, int32_t charset); bool Redo(); bool Undo(); CPVT_WordPlace WordIndexToWordPlace(int32_t index) const; CPVT_WordPlace SearchWordPlace(const CFX_PointF& point) const; int32_t GetCaret() const; CPVT_WordPlace GetCaretWordPlace() const; CFX_WideString GetSelectedText() const; CFX_WideString GetText() const; float GetFontSize() const; uint16_t GetPasswordChar() const; CFX_PointF GetScrollPos() const; int32_t GetCharArray() const; CFX_FloatRect GetContentRect() const; CFX_WideString GetRangeText(const CPVT_WordRange& range) const; int32_t GetHorzScale() const; float GetCharSpace() const; void SetSelection(int32_t nStartChar, int32_t nEndChar); void GetSelection(int32_t& nStartChar, int32_t& nEndChar) const; void SelectAll(); void SelectNone(); bool IsSelected() const; void Paint(); void EnableRefresh(bool bRefresh); void RefreshWordRange(const CPVT_WordRange& wr); CPVT_WordRange GetWholeWordRange() const; CPVT_WordRange GetSelectWordRange() const; void EnableUndo(bool bUndo); bool IsTextFull() const; bool IsTextOverflow() const; bool CanUndo() const; bool CanRedo() const; CPVT_WordRange GetVisibleWordRange() const; bool Empty(); CPVT_WordPlace DoInsertText(const CPVT_WordPlace& place, const CFX_WideString& sText, int32_t charset); int32_t GetCharSetFromUnicode(uint16_t word, int32_t nOldCharset); int32_t GetTotalLines() const; CFX_ByteString GetPDFWordString(int32_t nFontIndex, uint16_t Word, uint16_t SubWord); private: friend class CPWL_EditImpl_Iterator; friend class CFXEU_InsertWord; friend class CFXEU_InsertReturn; friend class CFXEU_Backspace; friend class CFXEU_Delete; friend class CFXEU_Clear; friend class CFXEU_InsertText; void SetSelection(const CPVT_WordPlace& begin, const CPVT_WordPlace& end); void RearrangeAll(); void RearrangePart(const CPVT_WordRange& range); void ScrollToCaret(); void SetScrollInfo(); void SetScrollPosX(float fx); void SetScrollPosY(float fy); void SetScrollLimit(); void SetContentChanged(); bool InsertWord(uint16_t word, int32_t charset, const CPVT_WordProps* pWordProps, bool bAddUndo, bool bPaint); bool InsertReturn(const CPVT_SecProps* pSecProps, const CPVT_WordProps* pWordProps, bool bAddUndo, bool bPaint); bool Backspace(bool bAddUndo, bool bPaint); bool Delete(bool bAddUndo, bool bPaint); bool Clear(bool bAddUndo, bool bPaint); bool InsertText(const CFX_WideString& sText, int32_t charset, bool bAddUndo, bool bPaint); void PaintInsertText(const CPVT_WordPlace& wpOld, const CPVT_WordPlace& wpNew); inline CFX_PointF VTToEdit(const CFX_PointF& point) const; inline CFX_PointF EditToVT(const CFX_PointF& point) const; inline CFX_FloatRect VTToEdit(const CFX_FloatRect& rect) const; void Refresh(); void RefreshPushLineRects(const CPVT_WordRange& wr); void SetCaret(const CPVT_WordPlace& place); void SetCaretInfo(); void SetCaretOrigin(); void AddEditUndoItem(std::unique_ptr<IFX_Edit_UndoItem> pEditUndoItem); private: std::unique_ptr<CPDF_VariableText> m_pVT; CFX_UnownedPtr<CPWL_EditCtrl> m_pNotify; CFX_UnownedPtr<CPWL_Edit> m_pOperationNotify; std::unique_ptr<CPWL_EditImpl_Provider> m_pVTProvider; CPVT_WordPlace m_wpCaret; CPVT_WordPlace m_wpOldCaret; CPWL_EditImpl_Select m_SelState; CFX_PointF m_ptScrollPos; CFX_PointF m_ptRefreshScrollPos; bool m_bEnableScroll; std::unique_ptr<CPWL_EditImpl_Iterator> m_pIterator; CPWL_EditImpl_Refresh m_Refresh; CFX_PointF m_ptCaret; CPWL_EditImpl_Undo m_Undo; int32_t m_nAlignment; bool m_bNotifyFlag; bool m_bEnableOverflow; bool m_bEnableRefresh; CFX_FloatRect m_rcOldContent; bool m_bEnableUndo; }; class CPWL_EditImpl_Iterator { public: CPWL_EditImpl_Iterator(CPWL_EditImpl* pEdit, CPDF_VariableText::Iterator* pVTIterator); ~CPWL_EditImpl_Iterator(); bool NextWord(); bool PrevWord(); bool GetWord(CPVT_Word& word) const; bool GetLine(CPVT_Line& line) const; void SetAt(int32_t nWordIndex); void SetAt(const CPVT_WordPlace& place); const CPVT_WordPlace& GetAt() const; private: CFX_UnownedPtr<CPWL_EditImpl> m_pEdit; CPDF_VariableText::Iterator* m_pVTIterator; }; class CPWL_EditImpl_Provider : public CPDF_VariableText::Provider { public: explicit CPWL_EditImpl_Provider(IPVT_FontMap* pFontMap); ~CPWL_EditImpl_Provider() override; IPVT_FontMap* GetFontMap() const; // CPDF_VariableText::Provider: int32_t GetCharWidth(int32_t nFontIndex, uint16_t word) override; int32_t GetTypeAscent(int32_t nFontIndex) override; int32_t GetTypeDescent(int32_t nFontIndex) override; int32_t GetWordFontIndex(uint16_t word, int32_t charset, int32_t nFontIndex) override; int32_t GetDefaultFontIndex() override; bool IsLatinWord(uint16_t word) override; private: IPVT_FontMap* m_pFontMap; }; #endif // FPDFSDK_PWL_CPWL_EDIT_IMPL_H_