// 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 _FX_EDIT_H_ #define _FX_EDIT_H_ #include "../../../core/include/fxcrt/fx_basic.h" #include "../../../core/include/fxge/fx_dib.h" class CFX_RenderDevice; class CPDF_Font; class CPDF_Matrix; class CPDF_PageObjects; class CPDF_Point; class CPDF_Rect; class CPDF_TextObject; class IFX_Edit; class IFX_Edit_FontMap; class IFX_Edit_Iterator; class IFX_Edit_Notify; class IFX_Edit_UndoItem; class IFX_List; class IFX_List_Notify; class IFX_SystemHandler; class IPDF_VariableText; class IPDF_VariableText_Provider; struct CPVT_Line; struct CPVT_SecProps; struct CPVT_Section; struct CPVT_Word; struct CPVT_WordPlace; struct CPVT_WordProps; struct CPVT_WordRange; #define PVTWORD_STYLE_NORMAL 0x0000L #define PVTWORD_STYLE_HIGHLIGHT 0x0001L #define PVTWORD_STYLE_UNDERLINE 0x0002L #define PVTWORD_STYLE_CROSSOUT 0x0004L #define PVTWORD_STYLE_SQUIGGLY 0x0008L #define PVTWORD_STYLE_DUALCROSSOUT 0x0010L #define PVTWORD_STYLE_BOLD 0x0020L #define PVTWORD_STYLE_ITALIC 0x0040L #define FX_EDIT_ISLATINWORD(u) (u == 0x2D || (u <= 0x005A && u >= 0x0041) || (u <= 0x007A && u >= 0x0061) || (u <= 0x02AF && u >= 0x00C0)) #ifdef FX_READER_DLL #ifdef FXET_EXPORT #define FXET_CLASS __declspec(dllexport) #else #define FXET_CLASS #endif #else #define FXET_CLASS #endif #ifndef DEFAULT_CHARSET #define DEFAULT_CHARSET 1 #endif class IFX_Edit_FontMap { public: virtual ~IFX_Edit_FontMap() { } //map a fontindex to pdf font. virtual CPDF_Font * GetPDFFont(FX_INT32 nFontIndex) = 0; //get the alias of a pdf font. virtual CFX_ByteString GetPDFFontAlias(FX_INT32 nFontIndex) = 0; //get the index of a font that can show a word. virtual FX_INT32 GetWordFontIndex(FX_WORD word, FX_INT32 charset, FX_INT32 nFontIndex) = 0; //get the charcode of word from unicode virtual FX_INT32 CharCodeFromUnicode(FX_INT32 nFontIndex, FX_WORD word) = 0; //get the charset of unicode virtual FX_INT32 CharSetFromUnicode(FX_WORD word, FX_INT32 nOldCharset) = 0; }; class IFX_Edit_Notify { public: virtual ~IFX_Edit_Notify() { } //set the horizontal scrollbar information. virtual void IOnSetScrollInfoX(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax, FX_FLOAT fContentMin, FX_FLOAT fContentMax, FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0; //set the vertical scrollbar information. virtual void IOnSetScrollInfoY(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax, FX_FLOAT fContentMin, FX_FLOAT fContentMax, FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0; //set the position of horizontal scrollbar. virtual void IOnSetScrollPosX(FX_FLOAT fx) = 0; //set the position of vertical scrollbar. virtual void IOnSetScrollPosY(FX_FLOAT fy) = 0; //set the caret information. virtual void IOnSetCaret(FX_BOOL bVisible,const CPDF_Point & ptHead,const CPDF_Point & ptFoot, const CPVT_WordPlace& place) = 0; //if the caret position is changed ,send the information of current postion to user. virtual void IOnCaretChange(const CPVT_SecProps & secProps, const CPVT_WordProps & wordProps) = 0; //if the text area is changed, send the information to user. virtual void IOnContentChange(const CPDF_Rect& rcContent) = 0; //Invalidate the rectangle relative to the bounding box of edit. virtual void IOnInvalidateRect(CPDF_Rect * pRect) = 0; }; class IFX_Edit_OprNotify { public: virtual ~IFX_Edit_OprNotify() { } //OprType: 0 virtual void OnInsertWord(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0; //OprType: 1 virtual void OnInsertReturn(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0; //OprType: 2 virtual void OnBackSpace(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0; //OprType: 3 virtual void OnDelete(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0; //OprType: 4 virtual void OnClear(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0; //OprType: 5 virtual void OnInsertText(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0; //OprType: 6 virtual void OnSetText(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0; // virtual void OnAddUndo(IFX_Edit_UndoItem* pUndoItem) = 0; }; class IFX_Edit_Iterator { public: virtual ~IFX_Edit_Iterator() {} public: //move the current position to the next word. virtual FX_BOOL NextWord() = 0; //move the current position to the next line. virtual FX_BOOL NextLine() = 0; //move the current position to the next section. virtual FX_BOOL NextSection() = 0; //move the current position to the previous word. virtual FX_BOOL PrevWord() = 0; //move the current position to the previous line. virtual FX_BOOL PrevLine() = 0; //move the current position to the previous section. virtual FX_BOOL PrevSection() = 0; //get the information of the current word. virtual FX_BOOL GetWord(CPVT_Word & word) const = 0; //get the information of the current line. virtual FX_BOOL GetLine(CPVT_Line & line) const = 0; //get the information of the current section. virtual FX_BOOL GetSection(CPVT_Section & section) const = 0; //set the current position. virtual void SetAt(FX_INT32 nWordIndex) = 0; //set the current position. virtual void SetAt(const CPVT_WordPlace & place) = 0; //get the current position. virtual const CPVT_WordPlace & GetAt() const = 0; //get the edit which this iterator belongs to virtual IFX_Edit* GetEdit() const = 0; }; class IFX_Edit_UndoItem { public: virtual void Release() = 0; virtual void Undo() = 0; virtual void Redo() = 0; virtual CFX_WideString GetUndoTitle() = 0; protected: ~IFX_Edit_UndoItem() { } }; class FXET_CLASS IFX_Edit { public: static IFX_Edit* NewEdit(); static void DelEdit(IFX_Edit* pEdit); //set a IFX_Edit_FontMap pointer implemented by user. virtual void SetFontMap(IFX_Edit_FontMap* pFontMap) = 0; //if user don't like to use FontMap, implement VTProvider and set it directly. virtual void SetVTProvider(IPDF_VariableText_Provider* pProvider) = 0; //set a IFX_Edit_Notify pointer implemented by user. virtual void SetNotify(IFX_Edit_Notify * pNotify) = 0; virtual void SetOprNotify(IFX_Edit_OprNotify* pOprNotify) = 0; //get a pointer allocated by CPDF_Edit, by this pointer, user can iterate the contents of edit, but don't need to release. virtual IFX_Edit_Iterator* GetIterator() = 0; //get a VT pointer relative to this edit. virtual IPDF_VariableText* GetVariableText() = 0; //get the IFX_Edit_FontMap pointer set by user. virtual IFX_Edit_FontMap* GetFontMap() = 0; //initialize the edit. virtual void Initialize() = 0; //set the bounding box of the text area. virtual void SetPlateRect(const CPDF_Rect & rect, FX_BOOL bPaint = TRUE) = 0; //set the scroll origin virtual void SetScrollPos(const CPDF_Point & point) = 0; //set the horizontal text alignment in text box, nFormat (0:left 1:middle 2:right). virtual void SetAlignmentH(FX_INT32 nFormat = 0, FX_BOOL bPaint = TRUE) = 0; //set the vertical text alignment in text box, nFormat (0:top 1:center 2:bottom). virtual void SetAlignmentV(FX_INT32 nFormat = 0, FX_BOOL bPaint = TRUE) = 0; //if the text is shown in secret , set a character for substitute. virtual void SetPasswordChar(FX_WORD wSubWord = '*', FX_BOOL bPaint = TRUE) = 0; //set the maximal count of words of the text. virtual void SetLimitChar(FX_INT32 nLimitChar = 0, FX_BOOL bPaint = TRUE) = 0; //if set the count of charArray , then all words is shown in equal space. virtual void SetCharArray(FX_INT32 nCharArray = 0, FX_BOOL bPaint = TRUE) = 0; //set the space of two characters. virtual void SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE) = 0; //set the horizontal scale of all characters. virtual void SetHorzScale(FX_INT32 nHorzScale = 100, FX_BOOL bPaint = TRUE) = 0; //set the leading of all lines virtual void SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE) = 0; //if set, CRLF is allowed. virtual void SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE) = 0; //if set, all words auto fit the width of the bounding box. virtual void SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0; //if set, a font size is calculated to full fit the bounding box. virtual void SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0; //is set, the text is allowed to scroll. virtual void SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0; //set the font size of all words. virtual void SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE) = 0; //the text is allowed to auto-scroll, allow the text overflow? virtual void SetTextOverflow(FX_BOOL bAllowed = FALSE, FX_BOOL bPaint = TRUE) = 0; //query if the edit is richedit. virtual FX_BOOL IsRichText() const = 0; //set the edit is richedit. virtual void SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE) = 0; //set the fontsize of selected text. virtual FX_BOOL SetRichFontSize(FX_FLOAT fFontSize) = 0; //set the fontindex of selected text, user can change the font of selected text. virtual FX_BOOL SetRichFontIndex(FX_INT32 nFontIndex) = 0; //set the textcolor of selected text. virtual FX_BOOL SetRichTextColor(FX_COLORREF dwColor) = 0; //set the text script type of selected text. (0:normal 1:superscript 2:subscript) virtual FX_BOOL SetRichTextScript(FX_INT32 nScriptType) = 0; //set the bold font style of selected text. virtual FX_BOOL SetRichTextBold(FX_BOOL bBold = TRUE) = 0; //set the italic font style of selected text. virtual FX_BOOL SetRichTextItalic(FX_BOOL bItalic = TRUE) = 0; //set the underline style of selected text. virtual FX_BOOL SetRichTextUnderline(FX_BOOL bUnderline = TRUE) = 0; //set the crossout style of selected text. virtual FX_BOOL SetRichTextCrossout(FX_BOOL bCrossout = TRUE) = 0; //set the charspace of selected text, in user coordinate. virtual FX_BOOL SetRichTextCharSpace(FX_FLOAT fCharSpace) = 0; //set the horizontal scale of selected text, default value is 100. virtual FX_BOOL SetRichTextHorzScale(FX_INT32 nHorzScale = 100) = 0; //set the leading of selected section, in user coordinate. virtual FX_BOOL SetRichTextLineLeading(FX_FLOAT fLineLeading) = 0; //set the indent of selected section, in user coordinate. virtual FX_BOOL SetRichTextLineIndent(FX_FLOAT fLineIndent) = 0; //set the alignment of selected section, nAlignment(0:left 1:middle 2:right) virtual FX_BOOL SetRichTextAlignment(FX_INT32 nAlignment) = 0; //set the selected range of text. //if nStartChar == 0 and nEndChar == -1, select all the text. virtual void SetSel(FX_INT32 nStartChar,FX_INT32 nEndChar) = 0; //get the selected range of text. virtual void GetSel(FX_INT32 & nStartChar, FX_INT32 & nEndChar) const = 0; //select all the text. virtual void SelectAll() = 0; //set text is not selected. virtual void SelectNone() = 0; //get the caret position. virtual FX_INT32 GetCaret() const = 0; virtual CPVT_WordPlace GetCaretWordPlace() const = 0; //get the string of selected text. virtual CFX_WideString GetSelText() const = 0; //get the text conent virtual CFX_WideString GetText() const = 0; //query if any text is selected. virtual FX_BOOL IsSelected() const = 0; //get the scroll origin virtual CPDF_Point GetScrollPos() const = 0; //get the bounding box of the text area. virtual CPDF_Rect GetPlateRect() const = 0; //get the fact area of the text. virtual CPDF_Rect GetContentRect() const = 0; //get the visible word range virtual CPVT_WordRange GetVisibleWordRange() const = 0; //get the whole word range virtual CPVT_WordRange GetWholeWordRange() const = 0; //get the word range of select text virtual CPVT_WordRange GetSelectWordRange() const = 0; //send the mousedown message to edit for response. //if Shift key is hold, bShift is TRUE, is Ctrl key is hold, bCtrl is TRUE. virtual void OnMouseDown(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0; //send the mousemove message to edit when mouse down is TRUE. virtual void OnMouseMove(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0; //send the UP key message to edit. virtual void OnVK_UP(FX_BOOL bShift,FX_BOOL bCtrl) = 0; //send the DOWN key message to edit. virtual void OnVK_DOWN(FX_BOOL bShift,FX_BOOL bCtrl) = 0; //send the LEFT key message to edit. virtual void OnVK_LEFT(FX_BOOL bShift,FX_BOOL bCtrl) = 0; //send the RIGHT key message to edit. virtual void OnVK_RIGHT(FX_BOOL bShift,FX_BOOL bCtrl) = 0; //send the HOME key message to edit. virtual void OnVK_HOME(FX_BOOL bShift,FX_BOOL bCtrl) = 0; //send the END key message to edit. virtual void OnVK_END(FX_BOOL bShift,FX_BOOL bCtrl) = 0; //put text into edit. virtual void SetText(FX_LPCWSTR text,FX_INT32 charset = DEFAULT_CHARSET, const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL) = 0; //insert a word into the edit. virtual FX_BOOL InsertWord(FX_WORD word, FX_INT32 charset = DEFAULT_CHARSET, const CPVT_WordProps * pWordProps = NULL) = 0; //insert a return into the edit. virtual FX_BOOL InsertReturn(const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL) = 0; //insert text into the edit. virtual FX_BOOL InsertText(FX_LPCWSTR text, FX_INT32 charset = DEFAULT_CHARSET, const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL) = 0; //do backspace operation. virtual FX_BOOL Backspace() = 0; //do delete operation. virtual FX_BOOL Delete() = 0; //delete the selected text. virtual FX_BOOL Clear() = 0; //do Redo operation. virtual FX_BOOL Redo() = 0; //do Undo operation. virtual FX_BOOL Undo() = 0; //move caret virtual void SetCaret(FX_INT32 nPos) = 0; //arrange all words over again virtual void Paint() = 0; //allow to refresh screen? virtual void EnableRefresh(FX_BOOL bRefresh) = 0; virtual void RefreshWordRange(const CPVT_WordRange& wr) = 0; //allow undo/redo? virtual void EnableUndo(FX_BOOL bUndo) = 0; //allow notify? virtual void EnableNotify(FX_BOOL bNotify) = 0; //allow opr notify? virtual void EnableOprNotify(FX_BOOL bNotify) = 0; //map word place to word index. virtual FX_INT32 WordPlaceToWordIndex(const CPVT_WordPlace & place) const = 0; //map word index to word place. virtual CPVT_WordPlace WordIndexToWordPlace(FX_INT32 index) const = 0; //get the beginning position of a line virtual CPVT_WordPlace GetLineBeginPlace(const CPVT_WordPlace & place) const = 0; //get the ending position of a line virtual CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace & place) const = 0; //get the beginning position of a section virtual CPVT_WordPlace GetSectionBeginPlace(const CPVT_WordPlace & place) const = 0; //get the ending position of a section virtual CPVT_WordPlace GetSectionEndPlace(const CPVT_WordPlace & place) const = 0; //search a wordplace form point virtual CPVT_WordPlace SearchWordPlace(const CPDF_Point& point) const = 0; //get the font size of non_rich text or default font size of richtext. virtual FX_FLOAT GetFontSize() const = 0; //get the mask character. virtual FX_WORD GetPasswordChar() const = 0; //get the count of charArray virtual FX_INT32 GetCharArray() const = 0; //get the horizontal scale of all characters virtual FX_INT32 GetHorzScale() const = 0; //get the space of two characters virtual FX_FLOAT GetCharSpace() const = 0; //get the latin words of specified range virtual CFX_WideString GetRangeText(const CPVT_WordRange & range) const = 0; //is the text full in bounding box virtual FX_BOOL IsTextFull() const = 0; virtual FX_BOOL CanUndo() const = 0; virtual FX_BOOL CanRedo() const = 0; //if the content is changed after settext? virtual FX_BOOL IsModified() const = 0; //get the total words in edit virtual FX_INT32 GetTotalWords() const = 0; virtual void AddUndoItem(IFX_Edit_UndoItem* pUndoItem) = 0; static CFX_ByteString GetEditAppearanceStream(IFX_Edit* pEdit, const CPDF_Point & ptOffset, const CPVT_WordRange* pRange = NULL, FX_BOOL bContinuous = TRUE, FX_WORD SubWord = 0); static CFX_ByteString GetSelectAppearanceStream(IFX_Edit* pEdit, const CPDF_Point & ptOffset, const CPVT_WordRange* pRange = NULL); static void DrawEdit(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device, IFX_Edit* pEdit, FX_COLORREF crTextFill, FX_COLORREF crTextStroke, const CPDF_Rect& rcClip, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, IFX_SystemHandler* pSystemHandler, void* pFFLData); static void DrawUnderline(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device, IFX_Edit* pEdit, FX_COLORREF color, const CPDF_Rect& rcClip, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange); static void DrawRichEdit(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device, IFX_Edit* pEdit, const CPDF_Rect& rcClip, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange); static void GeneratePageObjects(CPDF_PageObjects* pPageObjects, IFX_Edit* pEdit, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, FX_COLORREF crText, CFX_ArrayTemplate<CPDF_TextObject*>& ObjArray); static void GenerateRichPageObjects(CPDF_PageObjects* pPageObjects, IFX_Edit* pEdit, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, CFX_ArrayTemplate<CPDF_TextObject*>& ObjArray); static void GenerateUnderlineObjects(CPDF_PageObjects* pPageObjects, IFX_Edit* pEdit, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, FX_COLORREF color); protected: ~IFX_Edit() { } }; class IFX_List_Notify { public: virtual ~IFX_List_Notify() { } //set the horizontal scrollbar information. virtual void IOnSetScrollInfoX(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax, FX_FLOAT fContentMin, FX_FLOAT fContentMax, FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0; //set the vertical scrollbar information. virtual void IOnSetScrollInfoY(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax, FX_FLOAT fContentMin, FX_FLOAT fContentMax, FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0; //set the position of horizontal scrollbar. virtual void IOnSetScrollPosX(FX_FLOAT fx) = 0; //set the position of vertical scrollbar. virtual void IOnSetScrollPosY(FX_FLOAT fy) = 0; //Invalidate the rectangle relative to the bounding box of edit. virtual void IOnInvalidateRect(CPDF_Rect * pRect) = 0; }; class FXET_CLASS IFX_List { public: static IFX_List* NewList(); static void DelList(IFX_List* pList); virtual void SetFontMap(IFX_Edit_FontMap * pFontMap) = 0; virtual void SetNotify(IFX_List_Notify * pNotify) = 0; virtual void SetPlateRect(const CPDF_Rect & rect) = 0; virtual void SetFontSize(FX_FLOAT fFontSize) = 0; virtual CPDF_Rect GetPlateRect() const = 0; virtual CPDF_Rect GetContentRect() const = 0; virtual FX_FLOAT GetFontSize() const = 0; virtual IFX_Edit* GetItemEdit(FX_INT32 nIndex) const = 0; virtual FX_INT32 GetCount() const = 0; virtual FX_BOOL IsItemSelected(FX_INT32 nIndex) const = 0; virtual FX_FLOAT GetFirstHeight() const = 0; virtual void SetMultipleSel(FX_BOOL bMultiple) = 0; virtual FX_BOOL IsMultipleSel() const = 0; virtual FX_BOOL IsValid(FX_INT32 nItemIndex) const = 0; virtual FX_INT32 FindNext(FX_INT32 nIndex,FX_WCHAR nChar) const = 0; virtual void SetScrollPos(const CPDF_Point & point) = 0; virtual void ScrollToListItem(FX_INT32 nItemIndex) = 0; virtual CPDF_Rect GetItemRect(FX_INT32 nIndex) const = 0; virtual FX_INT32 GetCaret() const = 0; virtual FX_INT32 GetSelect() const = 0; virtual FX_INT32 GetTopItem() const = 0; virtual FX_INT32 GetItemIndex(const CPDF_Point & point) const = 0; virtual FX_INT32 GetFirstSelected() const = 0; virtual void AddString(FX_LPCWSTR string) = 0; virtual void SetTopItem(FX_INT32 nIndex) = 0; virtual void Select(FX_INT32 nItemIndex) = 0; virtual void SetCaret(FX_INT32 nItemIndex) = 0; virtual void Empty() = 0; virtual void Cancel() = 0; virtual CFX_WideString GetText() const = 0; virtual void OnMouseDown(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnMouseMove(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnVK_UP(FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnVK_DOWN(FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnVK_LEFT(FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnVK_RIGHT(FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnVK_HOME(FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnVK_END(FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual void OnVK(FX_INT32 nItemIndex,FX_BOOL bShift,FX_BOOL bCtrl) = 0; virtual FX_BOOL OnChar(FX_WORD nChar,FX_BOOL bShift,FX_BOOL bCtrl) = 0; protected: ~IFX_List() { } }; #endif