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-rw-r--r--xfa/fgas/layout/fgas_rtfbreak.h237
1 files changed, 237 insertions, 0 deletions
diff --git a/xfa/fgas/layout/fgas_rtfbreak.h b/xfa/fgas/layout/fgas_rtfbreak.h
new file mode 100644
index 0000000000..7e395f6918
--- /dev/null
+++ b/xfa/fgas/layout/fgas_rtfbreak.h
@@ -0,0 +1,237 @@
+// 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_FGAS_LAYOUT_FGAS_RTFBREAK_H_
+#define XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_
+
+#include "core/include/fxcrt/fx_ucd.h"
+#include "core/include/fxge/fx_ge.h"
+#include "xfa/fgas/crt/fgas_memory.h"
+#include "xfa/fgas/crt/fgas_utils.h"
+#include "xfa/fgas/layout/fgas_textbreak.h"
+#include "xfa/fgas/layout/fgas_unicode.h"
+
+class IFX_Unknown;
+class IFX_Font;
+
+#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;
+ const CFX_RectF* 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_FGAS_LAYOUT_FGAS_RTFBREAK_H_
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