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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 XFA_SRC_FGAS_INCLUDE_FX_RBK_H_
#define XFA_SRC_FGAS_INCLUDE_FX_RBK_H_
#include "core/include/fxcrt/fx_ucd.h"
#include "core/include/fxge/fx_ge.h"
#include "xfa/src/fgas/include/fx_mem.h"
#include "xfa/src/fgas/include/fx_tbk.h"
#include "xfa/src/fgas/include/fx_ucd.h"
#include "xfa/src/fgas/include/fx_utl.h"
class IFX_Unknown;
class IFX_Font;
class IFX_RTFBreak;
#define FX_RTFBREAKPOLICY_None 0x00
#define FX_RTFBREAKPOLICY_SpaceBreak 0x01
#define FX_RTFBREAKPOLICY_NumberBreak 0x02
#define FX_RTFBREAKPOLICY_InfixBreak 0x04
#define FX_RTFBREAKPOLICY_TabBreak 0x08
#define FX_RTFBREAKPOLICY_OrphanPositionedTab 0x10
#define FX_RTFBREAK_None 0x00
#define FX_RTFBREAK_PieceBreak 0x01
#define FX_RTFBREAK_LineBreak 0x02
#define FX_RTFBREAK_ParagraphBreak 0x03
#define FX_RTFBREAK_PageBreak 0x04
#define FX_RTFLAYOUTSTYLE_Pagination 0x01
#define FX_RTFLAYOUTSTYLE_VerticalLayout 0x02
#define FX_RTFLAYOUTSTYLE_VerticalChars 0x04
#define FX_RTFLAYOUTSTYLE_LineDirection 0x08
#define FX_RTFLAYOUTSTYLE_ExpandTab 0x10
#define FX_RTFLAYOUTSTYLE_ArabicNumber 0x20
#define FX_RTFLAYOUTSTYLE_SingleLine 0x40
#define FX_RTFLAYOUTSTYLE_MBCSCode 0x80
#define FX_RTFCHARSTYLE_Alignment 0x000F
#define FX_RTFCHARSTYLE_ArabicNumber 0x0010
#define FX_RTFCHARSTYLE_ArabicShadda 0x0020
#define FX_RTFCHARSTYLE_OddBidiLevel 0x0040
#define FX_RTFCHARSTYLE_RTLReadingOrder 0x0080
#define FX_RTFCHARSTYLE_ArabicContext 0x0300
#define FX_RTFCHARSTYLE_ArabicIndic 0x0400
#define FX_RTFCHARSTYLE_ArabicComma 0x0800
#define FX_RTFLINEALIGNMENT_Left 0
#define FX_RTFLINEALIGNMENT_Center 1
#define FX_RTFLINEALIGNMENT_Right 2
#define FX_RTFLINEALIGNMENT_Justified (1 << 2)
#define FX_RTFLINEALIGNMENT_Distributed (2 << 2)
#define FX_RTFLINEALIGNMENT_JustifiedLeft \
(FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Justified)
#define FX_RTFLINEALIGNMENT_JustifiedCenter \
(FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Justified)
#define FX_RTFLINEALIGNMENT_JustifiedRight \
(FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Justified)
#define FX_RTFLINEALIGNMENT_DistributedLeft \
(FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Distributed)
#define FX_RTFLINEALIGNMENT_DistributedCenter \
(FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Distributed)
#define FX_RTFLINEALIGNMENT_DistributedRight \
(FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Distributed)
#define FX_RTFLINEALIGNMENT_LowerMask 0x03
#define FX_RTFLINEALIGNMENT_HigherMask 0x0C
struct FX_RTFTEXTOBJ {
FX_RTFTEXTOBJ() {
pStr = NULL;
pWidths = NULL;
iLength = 0;
pFont = NULL;
fFontSize = 12.0f;
dwLayoutStyles = 0;
iCharRotation = 0;
iBidiLevel = 0;
pRect = NULL;
wLineBreakChar = L'\n';
iHorizontalScale = 100;
iVerticalScale = 100;
}
const FX_WCHAR* pStr;
int32_t* pWidths;
int32_t iLength;
IFX_Font* pFont;
FX_FLOAT fFontSize;
FX_DWORD dwLayoutStyles;
int32_t iCharRotation;
int32_t iBidiLevel;
FX_LPCRECTF pRect;
FX_WCHAR wLineBreakChar;
int32_t iHorizontalScale;
int32_t iVerticalScale;
};
class CFX_RTFPiece : public CFX_Target {
public:
CFX_RTFPiece()
: m_dwStatus(FX_RTFBREAK_PieceBreak),
m_iStartPos(0),
m_iWidth(-1),
m_iStartChar(0),
m_iChars(0),
m_iBidiLevel(0),
m_iBidiPos(0),
m_iFontSize(0),
m_iFontHeight(0),
m_iHorizontalScale(100),
m_iVerticalScale(100),
m_dwLayoutStyles(0),
m_dwIdentity(0),
m_pChars(NULL),
m_pUserData(NULL) {}
~CFX_RTFPiece() { Reset(); }
void AppendChar(const CFX_RTFChar& tc) {
FXSYS_assert(m_pChars != NULL);
m_pChars->Add(tc);
if (m_iWidth < 0) {
m_iWidth = tc.m_iCharWidth;
} else {
m_iWidth += tc.m_iCharWidth;
}
m_iChars++;
}
int32_t GetEndPos() const {
return m_iWidth < 0 ? m_iStartPos : m_iStartPos + m_iWidth;
}
int32_t GetLength() const { return m_iChars; }
int32_t GetEndChar() const { return m_iStartChar + m_iChars; }
CFX_RTFChar& GetChar(int32_t index) {
FXSYS_assert(index > -1 && index < m_iChars && m_pChars != NULL);
return *m_pChars->GetDataPtr(m_iStartChar + index);
}
CFX_RTFChar* GetCharPtr(int32_t index) const {
FXSYS_assert(index > -1 && index < m_iChars && m_pChars != NULL);
return m_pChars->GetDataPtr(m_iStartChar + index);
}
void GetString(FX_WCHAR* pText) const {
FXSYS_assert(pText != NULL);
int32_t iEndChar = m_iStartChar + m_iChars;
CFX_RTFChar* pChar;
for (int32_t i = m_iStartChar; i < iEndChar; i++) {
pChar = m_pChars->GetDataPtr(i);
*pText++ = (FX_WCHAR)pChar->m_wCharCode;
}
}
void GetString(CFX_WideString& wsText) const {
FX_WCHAR* pText = wsText.GetBuffer(m_iChars);
GetString(pText);
wsText.ReleaseBuffer(m_iChars);
}
void GetWidths(int32_t* pWidths) const {
FXSYS_assert(pWidths != NULL);
int32_t iEndChar = m_iStartChar + m_iChars;
CFX_RTFChar* pChar;
for (int32_t i = m_iStartChar; i < iEndChar; i++) {
pChar = m_pChars->GetDataPtr(i);
*pWidths++ = pChar->m_iCharWidth;
}
}
void Reset() {
m_dwStatus = FX_RTFBREAK_PieceBreak;
if (m_iWidth > -1) {
m_iStartPos += m_iWidth;
}
m_iWidth = -1;
m_iStartChar += m_iChars;
m_iChars = 0;
m_iBidiLevel = 0;
m_iBidiPos = 0;
m_iHorizontalScale = 100;
m_iVerticalScale = 100;
}
FX_DWORD m_dwStatus;
int32_t m_iStartPos;
int32_t m_iWidth;
int32_t m_iStartChar;
int32_t m_iChars;
int32_t m_iBidiLevel;
int32_t m_iBidiPos;
int32_t m_iFontSize;
int32_t m_iFontHeight;
int32_t m_iHorizontalScale;
int32_t m_iVerticalScale;
FX_DWORD m_dwLayoutStyles;
FX_DWORD m_dwIdentity;
CFX_RTFCharArray* m_pChars;
IFX_Unknown* m_pUserData;
};
typedef CFX_BaseArrayTemplate<CFX_RTFPiece> CFX_RTFPieceArray;
class IFX_RTFBreak {
public:
static IFX_RTFBreak* Create(FX_DWORD dwPolicies);
virtual ~IFX_RTFBreak() {}
virtual void Release() = 0;
virtual void SetLineBoundary(FX_FLOAT fLineStart, FX_FLOAT fLineEnd) = 0;
virtual void SetLineStartPos(FX_FLOAT fLinePos) = 0;
virtual FX_DWORD GetLayoutStyles() const = 0;
virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles) = 0;
virtual void SetFont(IFX_Font* pFont) = 0;
virtual void SetFontSize(FX_FLOAT fFontSize) = 0;
virtual void SetTabWidth(FX_FLOAT fTabWidth) = 0;
virtual void AddPositionedTab(FX_FLOAT fTabPos) = 0;
virtual void SetPositionedTabs(const CFX_FloatArray& tabs) = 0;
virtual void ClearPositionedTabs() = 0;
virtual void SetDefaultChar(FX_WCHAR wch) = 0;
virtual void SetLineBreakChar(FX_WCHAR wch) = 0;
virtual void SetLineBreakTolerance(FX_FLOAT fTolerance) = 0;
virtual void SetHorizontalScale(int32_t iScale) = 0;
virtual void SetVerticalScale(int32_t iScale) = 0;
virtual void SetCharRotation(int32_t iCharRotation) = 0;
virtual void SetCharSpace(FX_FLOAT fCharSpace) = 0;
virtual void SetWordSpace(FX_BOOL bDefault, FX_FLOAT fWordSpace) = 0;
virtual void SetReadingOrder(FX_BOOL bRTL = FALSE) = 0;
virtual void SetAlignment(int32_t iAlignment = FX_RTFLINEALIGNMENT_Left) = 0;
virtual void SetUserData(IFX_Unknown* pUserData) = 0;
virtual FX_DWORD AppendChar(FX_WCHAR wch) = 0;
virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_RTFBREAK_PieceBreak) = 0;
virtual int32_t CountBreakPieces() const = 0;
virtual const CFX_RTFPiece* GetBreakPiece(int32_t index) const = 0;
virtual void GetLineRect(CFX_RectF& rect) const = 0;
virtual void ClearBreakPieces() = 0;
virtual void Reset() = 0;
virtual int32_t GetDisplayPos(
const FX_RTFTEXTOBJ* pText,
FXTEXT_CHARPOS* pCharPos,
FX_BOOL bCharCode = FALSE,
CFX_WideString* pWSForms = NULL,
FX_AdjustCharDisplayPos pAdjustPos = NULL) const = 0;
virtual int32_t GetCharRects(const FX_RTFTEXTOBJ* pText,
CFX_RectFArray& rtArray,
FX_BOOL bCharBBox = FALSE) const = 0;
};
#endif // XFA_SRC_FGAS_INCLUDE_FX_RBK_H_
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