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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef _FX_EDIT_H_
      8 #define _FX_EDIT_H_
      9 
     10 #define PVTWORD_STYLE_NORMAL				0x0000L
     11 #define PVTWORD_STYLE_HIGHLIGHT				0x0001L
     12 #define PVTWORD_STYLE_UNDERLINE				0x0002L
     13 #define PVTWORD_STYLE_CROSSOUT				0x0004L
     14 #define PVTWORD_STYLE_SQUIGGLY				0x0008L
     15 #define PVTWORD_STYLE_DUALCROSSOUT			0x0010L
     16 #define PVTWORD_STYLE_BOLD					0x0020L
     17 #define PVTWORD_STYLE_ITALIC				0x0040L
     18 
     19 #define FX_EDIT_ISLATINWORD(u)	(u == 0x2D || (u <= 0x005A && u >= 0x0041) || (u <= 0x007A && u >= 0x0061) || (u <= 0x02AF && u >= 0x00C0))
     20 
     21 #ifdef FX_READER_DLL
     22 	#ifdef FXET_EXPORT
     23 		#define FXET_CLASS __declspec(dllexport)
     24 	#else
     25 		#define FXET_CLASS
     26 	#endif
     27 #else
     28 	#define FXET_CLASS
     29 #endif
     30 
     31 #ifndef DEFAULT_CHARSET
     32 #define DEFAULT_CHARSET         1
     33 #endif
     34 
     35 class IFX_Edit_FontMap;
     36 class IFX_Edit_Notify;
     37 class IFX_Edit_Iterator;
     38 class IFX_Edit_UndoItem;
     39 class IFX_Edit;
     40 class IFX_List_Notify;
     41 class IFX_List;
     42 class IFX_SystemHandler;
     43 
     44 class IFX_Edit_FontMap
     45 {
     46 public:
     47 	//map a fontindex to pdf font.
     48 	virtual CPDF_Font *						GetPDFFont(FX_INT32 nFontIndex) = 0;
     49 	//get the alias of a pdf font.
     50 	virtual CFX_ByteString					GetPDFFontAlias(FX_INT32 nFontIndex) = 0;
     51 	//get the index of a font that can show a word.
     52 	virtual FX_INT32						GetWordFontIndex(FX_WORD word, FX_INT32 charset, FX_INT32 nFontIndex) = 0;
     53 	//get the charcode of word from unicode
     54 	virtual FX_INT32						CharCodeFromUnicode(FX_INT32 nFontIndex, FX_WORD word) = 0;
     55 	//get the charset of unicode
     56 	virtual FX_INT32						CharSetFromUnicode(FX_WORD word, FX_INT32 nOldCharset) = 0;
     57 };
     58 
     59 class IFX_Edit_Notify
     60 {
     61 	//this class is implemented by user
     62 public:
     63 	//set the horizontal scrollbar information.
     64 	virtual void							IOnSetScrollInfoX(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax,
     65 												FX_FLOAT fContentMin, FX_FLOAT fContentMax,
     66 												FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0;
     67 	//set the vertical scrollbar information.
     68 	virtual void							IOnSetScrollInfoY(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax,
     69 												FX_FLOAT fContentMin, FX_FLOAT fContentMax,
     70 												FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0;
     71 	//set the position of horizontal scrollbar.
     72 	virtual void							IOnSetScrollPosX(FX_FLOAT fx) = 0;
     73 	//set the position of vertical scrollbar.
     74 	virtual void							IOnSetScrollPosY(FX_FLOAT fy) = 0;
     75 	//set the caret information.
     76 	virtual void							IOnSetCaret(FX_BOOL bVisible,const CPDF_Point & ptHead,const CPDF_Point & ptFoot, const CPVT_WordPlace& place) = 0;
     77 	//if the caret position is changed ,send the information of current postion to user.
     78 	virtual void							IOnCaretChange(const CPVT_SecProps & secProps, const CPVT_WordProps & wordProps) = 0;
     79 	//if the text area is changed, send the information to user.
     80 	virtual void							IOnContentChange(const CPDF_Rect& rcContent) = 0;
     81 	//Invalidate the rectangle relative to the bounding box of edit.
     82 	virtual void							IOnInvalidateRect(CPDF_Rect * pRect) = 0;
     83 };
     84 
     85 class IFX_Edit_OprNotify
     86 {
     87 	//this class is implemented by user
     88 public:
     89 	//OprType: 0
     90 	virtual void							OnInsertWord(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0;
     91 	//OprType: 1
     92 	virtual void							OnInsertReturn(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0;
     93 	//OprType: 2
     94 	virtual void							OnBackSpace(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0;
     95 	//OprType: 3
     96 	virtual void							OnDelete(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0;
     97 	//OprType: 4
     98 	virtual void							OnClear(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0;
     99 	//OprType: 5
    100 	virtual void							OnInsertText(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0;
    101 	//OprType: 6
    102 	virtual void							OnSetText(const CPVT_WordPlace& place, const CPVT_WordPlace& oldplace) = 0;
    103 	//
    104 	virtual void							OnAddUndo(IFX_Edit_UndoItem* pUndoItem) = 0;
    105 };
    106 
    107 class IFX_Edit_Iterator
    108 {
    109 public:
    110 	virtual ~IFX_Edit_Iterator()  {}
    111 public:
    112 	//move the current position to the next word.
    113 	virtual FX_BOOL							NextWord() = 0;
    114 	//move the current position to the next line.
    115 	virtual FX_BOOL							NextLine() = 0;
    116 	//move the current position to the next section.
    117 	virtual FX_BOOL							NextSection() = 0;
    118 
    119 	//move the current position to the previous word.
    120 	virtual FX_BOOL							PrevWord() = 0;
    121 	//move the current position to the previous line.
    122 	virtual FX_BOOL							PrevLine() = 0;
    123 	//move the current position to the previous section.
    124 	virtual FX_BOOL							PrevSection() = 0;
    125 
    126 	//get the information of the current word.
    127 	virtual FX_BOOL							GetWord(CPVT_Word & word) const = 0;
    128 	//get the information of the current line.
    129 	virtual FX_BOOL							GetLine(CPVT_Line & line) const = 0;
    130 	//get the information of the current section.
    131 	virtual FX_BOOL							GetSection(CPVT_Section & section) const = 0;
    132 	//set the current position.
    133 	virtual void							SetAt(FX_INT32 nWordIndex) = 0;
    134 	//set the current position.
    135 	virtual void							SetAt(const CPVT_WordPlace & place) = 0;
    136 	//get the current position.
    137 	virtual const CPVT_WordPlace &			GetAt() const = 0;
    138 
    139 	//get the edit which this iterator belongs to
    140 	virtual IFX_Edit*						GetEdit() const = 0;
    141 };
    142 
    143 class IFX_Edit_UndoItem
    144 {
    145 public:
    146 	virtual void							Undo() = 0;
    147 	virtual void							Redo() = 0;
    148 	virtual CFX_WideString					GetUndoTitle() = 0;
    149 	virtual void							Release() = 0;
    150 };
    151 
    152 class FXET_CLASS IFX_Edit
    153 {
    154 public:
    155 	static IFX_Edit*						NewEdit();
    156 	static	void							DelEdit(IFX_Edit* pEdit);
    157 
    158 public:
    159 	//set a IFX_Edit_FontMap pointer implemented by user.
    160 	virtual void							SetFontMap(IFX_Edit_FontMap* pFontMap) = 0;
    161 	//if user don't like to use FontMap, implement VTProvider and set it directly.
    162 	virtual void							SetVTProvider(IPDF_VariableText_Provider* pProvider) = 0;
    163 	//set a IFX_Edit_Notify pointer implemented by user.
    164 	virtual void							SetNotify(IFX_Edit_Notify * pNotify) = 0;
    165 	virtual void							SetOprNotify(IFX_Edit_OprNotify* pOprNotify) = 0;
    166 	//get a pointer allocated by CPDF_Edit, by this pointer, user can iterate the contents of edit, but don't need to release.
    167 	virtual IFX_Edit_Iterator*				GetIterator() = 0;
    168 	//get a VT pointer relative to this edit.
    169 	virtual IPDF_VariableText*				GetVariableText() = 0;
    170 	//get the IFX_Edit_FontMap pointer set by user.
    171 	virtual IFX_Edit_FontMap*				GetFontMap() = 0;
    172 
    173 	//initialize the edit.
    174 	virtual void							Initialize() = 0;
    175 
    176 	//set the bounding box of the text area.
    177 	virtual void							SetPlateRect(const CPDF_Rect & rect, FX_BOOL bPaint = TRUE) = 0;
    178 	//set the scroll origin
    179 	virtual void							SetScrollPos(const CPDF_Point & point) = 0;
    180 
    181 	//set the horizontal text alignment in text box, nFormat (0:left 1:middle 2:right).
    182 	virtual void							SetAlignmentH(FX_INT32 nFormat = 0, FX_BOOL bPaint = TRUE) = 0;
    183 	//set the vertical text alignment in text box, nFormat (0:top 1:center 2:bottom).
    184 	virtual void							SetAlignmentV(FX_INT32 nFormat = 0, FX_BOOL bPaint = TRUE) = 0;
    185 	//if the text is shown in secret , set a character for substitute.
    186 	virtual void							SetPasswordChar(FX_WORD wSubWord = '*', FX_BOOL bPaint = TRUE) = 0;
    187 	//set the maximal count of words of the text.
    188 	virtual void							SetLimitChar(FX_INT32 nLimitChar = 0, FX_BOOL bPaint = TRUE) = 0;
    189 	//if set the count of charArray , then all words is shown in equal space.
    190 	virtual void							SetCharArray(FX_INT32 nCharArray = 0, FX_BOOL bPaint = TRUE) = 0;
    191 	//set the space of two characters.
    192 	virtual void							SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE) = 0;
    193 	//set the horizontal scale of all characters.
    194 	virtual void							SetHorzScale(FX_INT32 nHorzScale = 100, FX_BOOL bPaint = TRUE) = 0;
    195 	//set the leading of all lines
    196 	virtual void							SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE) = 0;
    197 	//if set, CRLF is allowed.
    198 	virtual void							SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE) = 0;
    199 	//if set, all words auto fit the width of the bounding box.
    200 	virtual void							SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0;
    201 	//if set, a font size is calculated to full fit the bounding box.
    202 	virtual void							SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0;
    203 	//is set, the text is allowed to scroll.
    204 	virtual void							SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0;
    205 	//set the font size of all words.
    206 	virtual void							SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE) = 0;
    207 	//the text is allowed to auto-scroll, allow the text overflow?
    208 	virtual void							SetTextOverflow(FX_BOOL bAllowed = FALSE, FX_BOOL bPaint = TRUE) = 0;
    209 
    210 	//query if the edit is richedit.
    211 	virtual FX_BOOL							IsRichText() const = 0;
    212 	//set the edit is richedit.
    213 	virtual void							SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE) = 0;
    214 	//set the fontsize of selected text.
    215 	virtual FX_BOOL							SetRichFontSize(FX_FLOAT fFontSize) = 0;
    216 	//set the fontindex of selected text, user can change the font of selected text.
    217 	virtual FX_BOOL							SetRichFontIndex(FX_INT32 nFontIndex) = 0;
    218 	//set the textcolor of selected text.
    219 	virtual FX_BOOL							SetRichTextColor(FX_COLORREF dwColor) = 0;
    220 	//set the text script type of selected text. (0:normal 1:superscript 2:subscript)
    221 	virtual FX_BOOL							SetRichTextScript(FX_INT32 nScriptType) = 0;
    222 	//set the bold font style of selected text.
    223 	virtual FX_BOOL							SetRichTextBold(FX_BOOL bBold = TRUE) = 0;
    224 	//set the italic font style of selected text.
    225 	virtual FX_BOOL							SetRichTextItalic(FX_BOOL bItalic = TRUE) = 0;
    226 	//set the underline style of selected text.
    227 	virtual FX_BOOL							SetRichTextUnderline(FX_BOOL bUnderline = TRUE) = 0;
    228 	//set the crossout style of selected text.
    229 	virtual FX_BOOL							SetRichTextCrossout(FX_BOOL bCrossout = TRUE) = 0;
    230 	//set the charspace of selected text, in user coordinate.
    231 	virtual	FX_BOOL							SetRichTextCharSpace(FX_FLOAT fCharSpace) = 0;
    232 	//set the horizontal scale of selected text, default value is 100.
    233 	virtual FX_BOOL							SetRichTextHorzScale(FX_INT32 nHorzScale = 100) = 0;
    234 	//set the leading of selected section, in user coordinate.
    235 	virtual FX_BOOL							SetRichTextLineLeading(FX_FLOAT fLineLeading) = 0;
    236 	//set the indent of selected section, in user coordinate.
    237 	virtual FX_BOOL							SetRichTextLineIndent(FX_FLOAT fLineIndent) = 0;
    238 	//set the alignment of selected section, nAlignment(0:left 1:middle 2:right)
    239 	virtual FX_BOOL							SetRichTextAlignment(FX_INT32 nAlignment) = 0;
    240 
    241 	//set the selected range of text.
    242 	//if nStartChar == 0 and nEndChar == -1, select all the text.
    243 	virtual void							SetSel(FX_INT32 nStartChar,FX_INT32 nEndChar) = 0;
    244 	//get the selected range of text.
    245 	virtual void							GetSel(FX_INT32 & nStartChar, FX_INT32 & nEndChar) const = 0;
    246 	//select all the text.
    247 	virtual	void							SelectAll() = 0;
    248 	//set text is not selected.
    249 	virtual void							SelectNone() = 0;
    250 	//get the caret position.
    251 	virtual FX_INT32						GetCaret() const = 0;
    252 	virtual CPVT_WordPlace					GetCaretWordPlace() const = 0;
    253 	//get the string of selected text.
    254 	virtual CFX_WideString					GetSelText() const = 0;
    255 	//get the text conent
    256 	virtual CFX_WideString					GetText() const = 0;
    257 	//query if any text is selected.
    258 	virtual FX_BOOL							IsSelected() const = 0;
    259 	//get the scroll origin
    260 	virtual CPDF_Point						GetScrollPos() const = 0;
    261 	//get the bounding box of the text area.
    262 	virtual CPDF_Rect						GetPlateRect() const = 0;
    263 	//get the fact area of the text.
    264 	virtual CPDF_Rect						GetContentRect() const = 0;
    265 	//get the visible word range
    266 	virtual CPVT_WordRange					GetVisibleWordRange() const = 0;
    267 	//get the whole word range
    268 	virtual CPVT_WordRange					GetWholeWordRange() const = 0;
    269 	//get the word range of select text
    270 	virtual CPVT_WordRange					GetSelectWordRange() const = 0;
    271 
    272 	//send the mousedown message to edit for response.
    273 	//if Shift key is hold, bShift is TRUE, is Ctrl key is hold, bCtrl is TRUE.
    274 	virtual void							OnMouseDown(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    275 	//send the mousemove message to edit when mouse down is TRUE.
    276 	virtual void							OnMouseMove(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    277 	//send the UP key message to edit.
    278 	virtual void							OnVK_UP(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    279 	//send the DOWN key message to edit.
    280 	virtual void							OnVK_DOWN(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    281 	//send the LEFT key message to edit.
    282 	virtual void							OnVK_LEFT(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    283 	//send the RIGHT key message to edit.
    284 	virtual void							OnVK_RIGHT(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    285 	//send the HOME key message to edit.
    286 	virtual void							OnVK_HOME(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    287 	//send the END key message to edit.
    288 	virtual void							OnVK_END(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    289 
    290 	//put text into edit.
    291 	virtual void							SetText(FX_LPCWSTR text,FX_INT32 charset = DEFAULT_CHARSET,
    292 													const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL) = 0;
    293 	//insert a word into the edit.
    294 	virtual FX_BOOL							InsertWord(FX_WORD word, FX_INT32 charset = DEFAULT_CHARSET, const CPVT_WordProps * pWordProps = NULL) = 0;
    295 	//insert a return into the edit.
    296 	virtual FX_BOOL							InsertReturn(const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL) = 0;
    297 	//insert text into the edit.
    298 	virtual FX_BOOL							InsertText(FX_LPCWSTR text, FX_INT32 charset = DEFAULT_CHARSET,
    299 													const CPVT_SecProps * pSecProps = NULL,const CPVT_WordProps * pWordProps = NULL) = 0;
    300 	//do backspace operation.
    301 	virtual FX_BOOL							Backspace() = 0;
    302 	//do delete operation.
    303 	virtual FX_BOOL							Delete() = 0;
    304 	//delete the selected text.
    305 	virtual FX_BOOL							Clear() = 0;
    306 
    307 	//do Redo operation.
    308 	virtual FX_BOOL							Redo() = 0;
    309 	//do Undo operation.
    310 	virtual FX_BOOL							Undo() = 0;
    311 	//move caret
    312 	virtual void							SetCaret(FX_INT32 nPos) = 0;
    313 
    314 	//arrange all words over again
    315 	virtual void							Paint() = 0;
    316 
    317 	//allow to refresh screen?
    318 	virtual void							EnableRefresh(FX_BOOL bRefresh) = 0;
    319 
    320 	virtual void							RefreshWordRange(const CPVT_WordRange& wr) = 0;
    321 
    322 	//allow undo/redo?
    323 	virtual void							EnableUndo(FX_BOOL bUndo) = 0;
    324 
    325 	//allow notify?
    326 	virtual void							EnableNotify(FX_BOOL bNotify) = 0;
    327 
    328 	//allow opr notify?
    329 	virtual void							EnableOprNotify(FX_BOOL bNotify) = 0;
    330 
    331 	//map word place to word index.
    332 	virtual FX_INT32						WordPlaceToWordIndex(const CPVT_WordPlace & place) const = 0;
    333 	//map word index to word place.
    334 	virtual CPVT_WordPlace					WordIndexToWordPlace(FX_INT32 index) const = 0;
    335 
    336 	//get the beginning position of a line
    337 	virtual CPVT_WordPlace					GetLineBeginPlace(const CPVT_WordPlace & place) const = 0;
    338 
    339 	//get the ending position of a line
    340 	virtual CPVT_WordPlace					GetLineEndPlace(const CPVT_WordPlace & place) const = 0;
    341 
    342 	//get the beginning position of a section
    343 	virtual CPVT_WordPlace					GetSectionBeginPlace(const CPVT_WordPlace & place) const = 0;
    344 
    345 	//get the ending position of a section
    346 	virtual CPVT_WordPlace					GetSectionEndPlace(const CPVT_WordPlace & place) const = 0;
    347 
    348 	//search a wordplace form point
    349 	virtual CPVT_WordPlace					SearchWordPlace(const CPDF_Point& point) const = 0;
    350 
    351 	//get the font size of non_rich text or default font size of richtext.
    352 	virtual FX_FLOAT						GetFontSize() const = 0;
    353 	//get the mask character.
    354 	virtual FX_WORD							GetPasswordChar() const = 0;
    355 	//get the count of charArray
    356 	virtual FX_INT32						GetCharArray() const = 0;
    357 	//get the horizontal scale of all characters
    358 	virtual FX_INT32						GetHorzScale() const = 0;
    359 	//get the space of two characters
    360 	virtual FX_FLOAT						GetCharSpace() const = 0;
    361 	//get the latin words of specified range
    362 	virtual CFX_WideString					GetRangeText(const CPVT_WordRange & range) const = 0;
    363 	//is the text full in bounding box
    364 	virtual FX_BOOL							IsTextFull() const = 0;
    365 	virtual FX_BOOL							CanUndo() const = 0;
    366 	virtual FX_BOOL							CanRedo() const = 0;
    367 	//if the content is changed after settext?
    368 	virtual FX_BOOL							IsModified() const = 0;
    369 	//get the total words in edit
    370 	virtual FX_INT32						GetTotalWords() const = 0;
    371 
    372 	virtual void							AddUndoItem(IFX_Edit_UndoItem* pUndoItem) = 0;
    373 
    374 public:
    375 	static CFX_ByteString					GetEditAppearanceStream(IFX_Edit* pEdit, const CPDF_Point & ptOffset,
    376 													const CPVT_WordRange* pRange = NULL,
    377 													FX_BOOL bContinuous = TRUE, FX_WORD SubWord = 0);
    378 	static CFX_ByteString					GetSelectAppearanceStream(IFX_Edit* pEdit, const CPDF_Point & ptOffset, const CPVT_WordRange* pRange = NULL);
    379 	static void								DrawEdit(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device, IFX_Edit* pEdit, FX_COLORREF crTextFill, FX_COLORREF crTextStroke,
    380 													const CPDF_Rect& rcClip, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, IFX_SystemHandler* pSystemHandler, void* pFFLData);
    381 	static void								DrawUnderline(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device, IFX_Edit* pEdit, FX_COLORREF color,
    382 													const CPDF_Rect& rcClip, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange);
    383 	static void								DrawRichEdit(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device, IFX_Edit* pEdit,
    384 													const CPDF_Rect& rcClip, const CPDF_Point& ptOffset, const CPVT_WordRange* pRange);
    385 	static void								GeneratePageObjects(CPDF_PageObjects* pPageObjects, IFX_Edit* pEdit,
    386 													const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, FX_COLORREF crText, CFX_ArrayTemplate<CPDF_TextObject*>& ObjArray);
    387 	static void								GenerateRichPageObjects(CPDF_PageObjects* pPageObjects, IFX_Edit* pEdit,
    388 													const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, CFX_ArrayTemplate<CPDF_TextObject*>& ObjArray);
    389 	static void								GenerateUnderlineObjects(CPDF_PageObjects* pPageObjects, IFX_Edit* pEdit,
    390 													const CPDF_Point& ptOffset, const CPVT_WordRange* pRange, FX_COLORREF color);
    391 };
    392 
    393 class IFX_List_Notify
    394 {
    395 	//this class is implemented by user
    396 public:
    397 	//set the horizontal scrollbar information.
    398 	virtual void							IOnSetScrollInfoX(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax,
    399 												FX_FLOAT fContentMin, FX_FLOAT fContentMax,
    400 												FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0;
    401 	//set the vertical scrollbar information.
    402 	virtual void							IOnSetScrollInfoY(FX_FLOAT fPlateMin, FX_FLOAT fPlateMax,
    403 												FX_FLOAT fContentMin, FX_FLOAT fContentMax,
    404 												FX_FLOAT fSmallStep, FX_FLOAT fBigStep) = 0;
    405 	//set the position of horizontal scrollbar.
    406 	virtual void							IOnSetScrollPosX(FX_FLOAT fx) = 0;
    407 	//set the position of vertical scrollbar.
    408 	virtual void							IOnSetScrollPosY(FX_FLOAT fy) = 0;
    409 	//Invalidate the rectangle relative to the bounding box of edit.
    410 	virtual void							IOnInvalidateRect(CPDF_Rect * pRect) = 0;
    411 };
    412 
    413 class FXET_CLASS IFX_List
    414 {
    415 public:
    416 	static IFX_List*						NewList();
    417 	static void								DelList(IFX_List* pList);
    418 
    419 public:
    420 	virtual void							SetFontMap(IFX_Edit_FontMap * pFontMap) = 0;
    421 	virtual void							SetNotify(IFX_List_Notify * pNotify) = 0;
    422 
    423 	virtual void							SetPlateRect(const CPDF_Rect & rect) = 0;
    424 	virtual void							SetFontSize(FX_FLOAT fFontSize) = 0;
    425 
    426 	virtual CPDF_Rect						GetPlateRect() const = 0;
    427 	virtual CPDF_Rect						GetContentRect() const = 0;
    428 
    429 	virtual FX_FLOAT						GetFontSize() const = 0;
    430 	virtual IFX_Edit*						GetItemEdit(FX_INT32 nIndex) const = 0;
    431 	virtual FX_INT32						GetCount() const = 0;
    432 	virtual FX_BOOL							IsItemSelected(FX_INT32 nIndex) const = 0;
    433 	virtual FX_FLOAT						GetFirstHeight() const = 0;
    434 
    435 	virtual void							SetMultipleSel(FX_BOOL bMultiple) = 0;
    436 	virtual FX_BOOL							IsMultipleSel() const = 0;
    437 	virtual FX_BOOL							IsValid(FX_INT32 nItemIndex) const = 0;
    438 	virtual FX_INT32						FindNext(FX_INT32 nIndex,FX_WCHAR nChar) const = 0;
    439 
    440 	virtual void							SetScrollPos(const CPDF_Point & point) = 0;
    441 	virtual void							ScrollToListItem(FX_INT32 nItemIndex) = 0;
    442 	virtual CPDF_Rect						GetItemRect(FX_INT32 nIndex) const = 0;
    443 	virtual FX_INT32						GetCaret() const = 0;
    444 	virtual FX_INT32						GetSelect() const = 0;
    445 	virtual FX_INT32						GetTopItem() const = 0;
    446 	virtual FX_INT32						GetItemIndex(const CPDF_Point & point) const = 0;
    447 	virtual FX_INT32						GetFirstSelected() const = 0;
    448 
    449 	virtual void							AddString(FX_LPCWSTR string) = 0;
    450 	virtual void							SetTopItem(FX_INT32 nIndex) = 0;
    451 	virtual void							Select(FX_INT32 nItemIndex) = 0;
    452 	virtual void							SetCaret(FX_INT32 nItemIndex) = 0;
    453 	virtual void							Empty() = 0;
    454 	virtual void							Cancel() = 0;
    455 	virtual CFX_WideString					GetText() const = 0;
    456 
    457 
    458 	virtual void							OnMouseDown(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    459 	virtual void							OnMouseMove(const CPDF_Point & point,FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    460 	virtual void							OnVK_UP(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    461 	virtual void							OnVK_DOWN(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    462 	virtual void							OnVK_LEFT(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    463 	virtual void							OnVK_RIGHT(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    464 	virtual void							OnVK_HOME(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    465 	virtual void							OnVK_END(FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    466 	virtual void							OnVK(FX_INT32 nItemIndex,FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    467 	virtual FX_BOOL							OnChar(FX_WORD nChar,FX_BOOL bShift,FX_BOOL bCtrl) = 0;
    468 };
    469 
    470 #endif
    471 
    472