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// 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 _IFDE_TXTEDTENGINE_H
#define _IFDE_TXTEDTENGINE_H
class IFDE_TxtEdtBuf;
class IFDE_TxtEdtPage;
class IFDE_TxtEdtEngine;
class IFDE_TxtEdtEventSink;
class IFDE_TxtEdtParag;
#define FDE_TXTEDT_FIND_FLAGS_Prev (0L << 0)
#define FDE_TXTEDT_FIND_FLAGS_Next (1L << 0)
#define FDE_TXTEDT_FIND_FLAGS_WholeWord (1L << 1)
#define FDE_TXTEDT_FIND_FLAGS_NoCase (1L << 2)
typedef struct _FDE_HTXTEDTFIND {
FX_LPVOID pData;
} * FDE_HTXTEDTFIND;
#define FDE_TEXTEDITMODE_MultiLines (1L << 0)
#define FDE_TEXTEDITMODE_AutoLineWrap (1L << 1)
#define FDE_TEXTEDITMODE_ReadOnly (1L << 2)
#define FDE_TEXTEDITMODE_LimitArea_Vert (1L << 3)
#define FDE_TEXTEDITMODE_LimitArea_Horz (1L << 4)
#define FDE_TEXTEDITMODE_NoRedoUndo (1L << 5)
#define FDE_TEXTEDITMODE_FIELD_TAB (1L << 6)
#define FDE_TEXTEDITMODE_FIELD_AUTO (1L << 7)
#define FDE_TEXTEDITMODE_Validate (1L << 8)
#define FDE_TEXTEDITMODE_Password (1L << 9)
#define FDE_TEXTEDITALIGN_Left (0L << 0)
#define FDE_TEXTEDITALIGN_Center (1L << 0)
#define FDE_TEXTEDITALIGN_Right (2L << 0)
#define FDE_TEXTEDITALIGN_Normal (1L << 3)
#define FDE_TEXTEDITALIGN_Justified (1L << 4)
#define FDE_TEXTEDITALIGN_Distributed (1L << 5)
#define FDE_TEXTEDITLAYOUT_DocVertical (1L << 0)
#define FDE_TEXTEDITLAYOUT_CharVertial (1L << 1)
#define FDE_TEXTEDITLAYOUT_LineReserve (1L << 2)
#define FDE_TEXTEDITLAYOUT_RTL (1L << 3)
#define FDE_TEXTEDITLAYOUT_CombText (1L << 4)
#define FDE_TEXTEDITLAYOUT_ExpandTab (1L << 5)
#define FDE_TEXTEDITLAYOUT_ArabicContext (1L << 6)
#define FDE_TEXTEDITLAYOUT_ArabicShapes (1L << 7)
#define FDE_TEXTEDITLAYOUT_LastLineHeight (1L << 8)
enum FDE_TXTEDTMOVECARET {
MC_MoveNone = 0 ,
MC_Left ,
MC_Right ,
MC_Up ,
MC_Down ,
MC_WordBackward ,
MC_WordForward ,
MC_LineStart ,
MC_LineEnd ,
MC_ParagStart ,
MC_ParagEnd ,
MC_PageUp ,
MC_PageDown ,
MC_Home ,
MC_End ,
};
enum FDE_TXTEDT_MODIFY_RET {
FDE_TXTEDT_MODIFY_RET_F_Tab = -6,
FDE_TXTEDT_MODIFY_RET_F_Locked = -5,
FDE_TXTEDT_MODIFY_RET_F_Invalidate = -4,
FDE_TXTEDT_MODIFY_RET_F_Boundary = -3,
FDE_TXTEDT_MODIFY_RET_F_Full = -2,
FDE_TXTEDT_MODIFY_RET_F_Normal = -1,
FDE_TXTEDT_MODIFY_RET_S_Normal = 0,
FDE_TXTEDT_MODIFY_RET_S_Full = 1,
FDE_TXTEDT_MODIFY_RET_S_Part = 2,
FDE_TXTEDT_MODIFY_RET_S_Empty = 3,
FDE_TXTEDT_MODIFY_RET_T_Tab = 4,
};
enum FDE_TXTEDIT_LINEEND {
FDE_TXTEDIT_LINEEND_Auto,
FDE_TXTEDIT_LINEEND_CRLF,
FDE_TXTEDIT_LINEEND_CR,
FDE_TXTEDIT_LINEEND_LF,
};
struct _FDE_TXTEDTPARAMS {
_FDE_TXTEDTPARAMS()
: fPlateWidth(0)
, fPlateHeight(0)
, nLineCount(0)
, dwLayoutStyles(0)
, dwAlignment(0)
, dwMode(0)
, pFont(NULL)
, fFontSize(10.0f)
, dwFontColor(0xff000000)
, fLineSpace(10.0f)
, fTabWidth(36)
, bTabEquidistant(FALSE)
, wDefChar(0xFEFF)
, wLineBreakChar('\n')
, nCharRotation(0)
, nLineEnd(0)
, nHorzScale(100)
, fCharSpace(0)
, pEventSink(NULL)
{
}
FX_FLOAT fPlateWidth;
FX_FLOAT fPlateHeight;
FX_INT32 nLineCount;
FX_DWORD dwLayoutStyles;
FX_DWORD dwAlignment;
FX_DWORD dwMode;
IFX_Font *pFont;
FX_FLOAT fFontSize;
FX_ARGB dwFontColor;
FX_FLOAT fLineSpace;
FX_FLOAT fTabWidth;
FX_BOOL bTabEquidistant;
FX_WCHAR wDefChar;
FX_WCHAR wLineBreakChar;
FX_INT32 nCharRotation;
FX_INT32 nLineEnd;
FX_INT32 nHorzScale;
FX_FLOAT fCharSpace;
IFDE_TxtEdtEventSink * pEventSink;
};
typedef _FDE_TXTEDTPARAMS FDE_TXTEDTPARAMS;
typedef _FDE_TXTEDTPARAMS* FDE_LPTXTEDTPARAMS;
enum FDE_TXTEDT_TEXTCHANGE_TYPE {
FDE_TXTEDT_TEXTCHANGE_TYPE_Insert = 0 ,
FDE_TXTEDT_TEXTCHANGE_TYPE_Delete ,
FDE_TXTEDT_TEXTCHANGE_TYPE_Replace ,
};
struct _FDE_TXTEDT_TEXTCHANGE_INFO {
FX_INT32 nChangeType;
CFX_WideString wsInsert;
CFX_WideString wsDelete;
CFX_WideString wsPrevText;
};
typedef _FDE_TXTEDT_TEXTCHANGE_INFO FDE_TXTEDT_TEXTCHANGE_INFO;
typedef _FDE_TXTEDT_TEXTCHANGE_INFO* FDE_LPTXTEDT_TEXTCHANGE_INFO;
class IFDE_TxtEdtEventSink
{
public:
virtual void On_CaretChanged(IFDE_TxtEdtEngine * pEdit, FX_INT32 nPage, FX_BOOL bVisible = TRUE) = 0;
virtual void On_TextChanged(IFDE_TxtEdtEngine * pEdit, FDE_TXTEDT_TEXTCHANGE_INFO &ChangeInfo) = 0;
virtual void On_PageCountChanged(IFDE_TxtEdtEngine * pEdit) = 0;
virtual void On_SelChanged(IFDE_TxtEdtEngine * pEdit) = 0;
virtual FX_BOOL On_PageLoad(IFDE_TxtEdtEngine * pEdit, FX_INT32 nPageIndex, FX_INT32 nPurpose) = 0;
virtual FX_BOOL On_PageUnload(IFDE_TxtEdtEngine * pEdit, FX_INT32 nPageIndex, FX_INT32 nPurpose) = 0;
virtual FX_BOOL On_PageChange(IFDE_TxtEdtEngine * pEdit, FX_INT32 nPageIndex) = 0;
virtual void On_AddDoRecord(IFDE_TxtEdtEngine * pEdit, FX_BSTR bsDoRecord) = 0;
virtual FX_BOOL On_ValidateField(IFDE_TxtEdtEngine * pEdit, FX_INT32 nBlockIndex, FX_INT32 nFieldIndex, \
const CFX_WideString &wsFieldText, FX_INT32 nCharIndex) = 0;
virtual FX_BOOL On_ValidateBlock(IFDE_TxtEdtEngine * pEdit, FX_INT32 nBlockIndex) = 0;
virtual FX_BOOL On_GetBlockFormatText(IFDE_TxtEdtEngine * pEdit, FX_INT32 nBlockIndex, CFX_WideString &wsBlockText) = 0;
virtual FX_BOOL On_Validate(IFDE_TxtEdtEngine * pEdit, CFX_WideString &wsText) = 0;
};
class IFX_CharIter
{
public:
virtual void Release() = 0;
virtual FX_BOOL Next(FX_BOOL bPrev = FALSE) = 0;
virtual FX_WCHAR GetChar() = 0;
virtual void SetAt(FX_INT32 nIndex) = 0;
virtual FX_INT32 GetAt() const = 0;
virtual FX_BOOL IsEOF(FX_BOOL bTail = TRUE) const = 0;
virtual IFX_CharIter * Clone() = 0;
};
class IFDE_TxtEdtEngine
{
public:
static IFDE_TxtEdtEngine* Create();
virtual void Release() = 0;
virtual void SetEditParams(const FDE_TXTEDTPARAMS ¶ms) = 0;
virtual const FDE_TXTEDTPARAMS* GetEditParams() const = 0;
virtual FX_INT32 CountPages() const = 0;
virtual IFDE_TxtEdtPage* GetPage(FX_INT32 nIndex) = 0;
virtual FX_BOOL SetBufChunkSize(FX_INT32 nChunkSize) = 0;
virtual void SetTextByStream(IFX_Stream * pStream) = 0;
virtual void SetText(const CFX_WideString &wsText) = 0;
virtual FX_INT32 GetTextLength() const = 0;
virtual void GetText(CFX_WideString &wsText, FX_INT32 nStart, FX_INT32 nCount = -1) = 0;
virtual void ClearText() = 0;
virtual FX_INT32 GetCaretRect(CFX_RectF &rtCaret) const = 0;
virtual FX_INT32 GetCaretPos() const = 0;
virtual FX_INT32 SetCaretPos(FX_INT32 nIndex, FX_BOOL bBefore = TRUE) = 0;
virtual FX_INT32 MoveCaretPos(FDE_TXTEDTMOVECARET eMoveCaret, FX_BOOL bShift = FALSE, FX_BOOL bCtrl = FALSE) = 0;
virtual void Lock() = 0;
virtual void Unlock() = 0;
virtual FX_BOOL IsLocked() const = 0;
virtual FX_INT32 Insert(FX_INT32 nStart, FX_LPCWSTR lpText, FX_INT32 nLength) = 0;
virtual FX_INT32 Delete(FX_INT32 nStart, FX_BOOL bBackspace = FALSE) = 0;
virtual FX_INT32 DeleteRange(FX_INT32 nStart, FX_INT32 nCount = -1) = 0;
virtual FX_INT32 Replace(FX_INT32 nStart, FX_INT32 nLength, const CFX_WideString &wsReplace) = 0;
virtual void SetLimit(FX_INT32 nLimit) = 0;
virtual void SetAliasChar(FX_WCHAR wAlias) = 0;
virtual void SetFormatBlock(FX_INT32 nIndex, const CFX_WideString &wsBlockFormat) = 0;
virtual FX_INT32 CountEditBlocks() const = 0;
virtual void GetEditBlockText(FX_INT32 nIndex, CFX_WideString &wsBlockText) const = 0;
virtual FX_INT32 CountEditFields(FX_INT32 nBlockIndex) const = 0;
virtual void GetEditFieldText(FX_INT32 nBlockIndex, FX_INT32 nFieldIndex, CFX_WideString &wsFieldText) const = 0;
virtual void StartEdit() = 0;
virtual void EndEdit() = 0;
virtual void AddSelRange(FX_INT32 nStart, FX_INT32 nCount = -1) = 0;
virtual FX_INT32 CountSelRanges() = 0;
virtual FX_INT32 GetSelRange(FX_INT32 nIndex, FX_INT32 &nStart) = 0;
virtual void ClearSelection() = 0;
virtual FX_BOOL Redo(FX_BSTR bsRedo) = 0;
virtual FX_BOOL Undo(FX_BSTR bsUndo) = 0;
virtual FX_INT32 StartLayout() = 0;
virtual FX_INT32 DoLayout(IFX_Pause *pPause) = 0;
virtual void EndLayout() = 0;
virtual FX_BOOL Optimize(IFX_Pause * pPause = NULL) = 0;
virtual FX_INT32 CountParags() const = 0;
virtual IFDE_TxtEdtParag* GetParag(FX_INT32 nParagIndex) const = 0;
virtual IFX_CharIter* CreateCharIter() = 0;
};
class IFDE_TxtEdtParag
{
public:
virtual FX_INT32 GetTextLength() const = 0;
virtual FX_INT32 GetStartIndex() const = 0;
virtual FX_INT32 CountLines() const = 0;
virtual void GetLineRange(FX_INT32 nLineIndex, FX_INT32& nStart, FX_INT32& nCount) const = 0;
};
#endif
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