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Diffstat (limited to 'xfa/fgas/layout/fgas_textbreak.h')
-rw-r--r--xfa/fgas/layout/fgas_textbreak.h222
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diff --git a/xfa/fgas/layout/fgas_textbreak.h b/xfa/fgas/layout/fgas_textbreak.h
new file mode 100644
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+++ b/xfa/fgas/layout/fgas_textbreak.h
@@ -0,0 +1,222 @@
+// 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_TEXTBREAK_H_
+#define XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_
+
+#include "core/include/fxcrt/fx_ucd.h"
+#include "core/include/fxge/fx_ge.h"
+#include "xfa/fgas/crt/fgas_utils.h"
+#include "xfa/fgas/layout/fgas_unicode.h"
+
+class IFX_Font;
+class CFX_Char;
+class IFX_TxtAccess;
+class CFX_TxtChar;
+class CFX_TxtPiece;
+class IFX_TxtBreak;
+
+#define FX_TXTBREAKPOLICY_None 0x00
+#define FX_TXTBREAKPOLICY_Pagination 0x01
+#define FX_TXTBREAKPOLICY_SpaceBreak 0x02
+#define FX_TXTBREAKPOLICY_NumberBreak 0x04
+#define FX_TXTBREAK_None 0x00
+#define FX_TXTBREAK_PieceBreak 0x01
+#define FX_TXTBREAK_LineBreak 0x02
+#define FX_TXTBREAK_ParagraphBreak 0x03
+#define FX_TXTBREAK_PageBreak 0x04
+#define FX_TXTBREAK_ControlChar 0x10
+#define FX_TXTBREAK_BreakChar 0x20
+#define FX_TXTBREAK_UnknownChar 0x40
+#define FX_TXTBREAK_RemoveChar 0x80
+#define FX_TXTLAYOUTSTYLE_MutipleFormat 0x0001
+#define FX_TXTLAYOUTSTYLE_VerticalLayout 0x0002
+#define FX_TXTLAYOUTSTYLE_VerticalChars 0x0004
+#define FX_TXTLAYOUTSTYLE_ReverseLine 0x0008
+#define FX_TXTLAYOUTSTYLE_ArabicContext 0x0010
+#define FX_TXTLAYOUTSTYLE_ArabicShapes 0x0020
+#define FX_TXTLAYOUTSTYLE_RTLReadingOrder 0x0040
+#define FX_TXTLAYOUTSTYLE_ExpandTab 0x0100
+#define FX_TXTLAYOUTSTYLE_SingleLine 0x0200
+#define FX_TXTLAYOUTSTYLE_CombText 0x0400
+#define FX_TXTCHARSTYLE_Alignment 0x000F
+#define FX_TXTCHARSTYLE_ArabicNumber 0x0010
+#define FX_TXTCHARSTYLE_ArabicShadda 0x0020
+#define FX_TXTCHARSTYLE_OddBidiLevel 0x0040
+#define FX_TXTCHARSTYLE_RTLReadingOrder 0x0080
+#define FX_TXTCHARSTYLE_ArabicContext 0x0300
+#define FX_TXTCHARSTYLE_ArabicIndic 0x0400
+#define FX_TXTCHARSTYLE_ArabicComma 0x0800
+#define FX_TXTLINEALIGNMENT_Left 0
+#define FX_TXTLINEALIGNMENT_Center 1
+#define FX_TXTLINEALIGNMENT_Right 2
+#define FX_TXTLINEALIGNMENT_Justified (1 << 2)
+#define FX_TXTLINEALIGNMENT_Distributed (2 << 2)
+#define FX_TXTLINEALIGNMENT_JustifiedLeft \
+ (FX_TXTLINEALIGNMENT_Left | FX_TXTLINEALIGNMENT_Justified)
+#define FX_TXTLINEALIGNMENT_JustifiedCenter \
+ (FX_TXTLINEALIGNMENT_Center | FX_TXTLINEALIGNMENT_Justified)
+#define FX_TXTLINEALIGNMENT_JustifiedRight \
+ (FX_TXTLINEALIGNMENT_Right | FX_TXTLINEALIGNMENT_Justified)
+#define FX_TXTLINEALIGNMENT_DistributedLeft \
+ (FX_TXTLINEALIGNMENT_Left | FX_TXTLINEALIGNMENT_Distributed)
+#define FX_TXTLINEALIGNMENT_DistributedCenter \
+ (FX_TXTLINEALIGNMENT_Center | FX_TXTLINEALIGNMENT_Distributed)
+#define FX_TXTLINEALIGNMENT_DistributedRight \
+ (FX_TXTLINEALIGNMENT_Right | FX_TXTLINEALIGNMENT_Distributed)
+#define FX_TXTLINEALIGNMENT_LowerMask 0x03
+#define FX_TXTLINEALIGNMENT_HigherMask 0x0C
+#define FX_TXTBREAK_MinimumTabWidth 160000
+
+class IFX_TxtAccess {
+ public:
+ virtual ~IFX_TxtAccess() {}
+ virtual FX_WCHAR GetChar(void* pIdentity, int32_t index) const = 0;
+ virtual int32_t GetWidth(void* pIdentity, int32_t index) const = 0;
+};
+
+struct FX_TXTRUN {
+ FX_TXTRUN() {
+ pAccess = NULL;
+ pIdentity = NULL;
+ pStr = NULL;
+ pWidths = NULL;
+ iLength = 0;
+ pFont = NULL;
+ fFontSize = 12;
+ dwStyles = 0;
+ iHorizontalScale = 100;
+ iVerticalScale = 100;
+ iCharRotation = 0;
+ dwCharStyles = 0;
+ pRect = NULL;
+ wLineBreakChar = L'\n';
+ bSkipSpace = TRUE;
+ }
+
+ IFX_TxtAccess* pAccess;
+ void* pIdentity;
+ const FX_WCHAR* pStr;
+ int32_t* pWidths;
+ int32_t iLength;
+ IFX_Font* pFont;
+ FX_FLOAT fFontSize;
+ FX_DWORD dwStyles;
+ int32_t iHorizontalScale;
+ int32_t iVerticalScale;
+ int32_t iCharRotation;
+ FX_DWORD dwCharStyles;
+ const CFX_RectF* pRect;
+ FX_WCHAR wLineBreakChar;
+ FX_BOOL bSkipSpace;
+};
+
+class CFX_TxtPiece : public CFX_Target {
+ public:
+ CFX_TxtPiece()
+ : m_dwStatus(FX_TXTBREAK_PieceBreak),
+ m_iStartPos(0),
+ m_iWidth(-1),
+ m_iStartChar(0),
+ m_iChars(0),
+ m_iBidiLevel(0),
+ m_iBidiPos(0),
+ m_iHorizontalScale(100),
+ m_iVerticalScale(100),
+ m_dwCharStyles(0),
+ m_pChars(NULL),
+ m_pUserData(NULL) {}
+ 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_TxtChar* 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_Char* 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_Char* pChar;
+ for (int32_t i = m_iStartChar; i < iEndChar; i++) {
+ pChar = m_pChars->GetDataPtr(i);
+ *pWidths++ = pChar->m_iCharWidth;
+ }
+ }
+ 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_iHorizontalScale;
+ int32_t m_iVerticalScale;
+ FX_DWORD m_dwCharStyles;
+ CFX_TxtCharArray* m_pChars;
+ void* m_pUserData;
+};
+typedef CFX_BaseArrayTemplate<CFX_TxtPiece> CFX_TxtPieceArray;
+
+class IFX_TxtBreak {
+ public:
+ static IFX_TxtBreak* Create(FX_DWORD dwPolicies);
+ virtual ~IFX_TxtBreak() {}
+ virtual void Release() = 0;
+ virtual void SetLineWidth(FX_FLOAT fLineWidth) = 0;
+ virtual void SetLinePos(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, FX_BOOL bEquidistant) = 0;
+ virtual void SetDefaultChar(FX_WCHAR wch) = 0;
+ virtual void SetParagraphBreakChar(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 SetAlignment(int32_t iAlignment) = 0;
+ virtual FX_DWORD GetContextCharStyles() const = 0;
+ virtual void SetContextCharStyles(FX_DWORD dwCharStyles) = 0;
+ virtual void SetCombWidth(FX_FLOAT fCombWidth) = 0;
+ virtual void SetUserData(void* pUserData) = 0;
+ virtual FX_DWORD AppendChar(FX_WCHAR wch) = 0;
+ virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_TXTBREAK_PieceBreak) = 0;
+ virtual int32_t CountBreakChars() const = 0;
+ virtual int32_t CountBreakPieces() const = 0;
+ virtual const CFX_TxtPiece* GetBreakPiece(int32_t index) const = 0;
+ virtual void ClearBreakPieces() = 0;
+ virtual void Reset() = 0;
+ virtual int32_t GetDisplayPos(
+ const FX_TXTRUN* pTxtRun,
+ FXTEXT_CHARPOS* pCharPos,
+ FX_BOOL bCharCode = FALSE,
+ CFX_WideString* pWSForms = NULL,
+ FX_AdjustCharDisplayPos pAdjustPos = NULL) const = 0;
+ virtual int32_t GetCharRects(const FX_TXTRUN* pTxtRun,
+ CFX_RectFArray& rtArray,
+ FX_BOOL bCharBBox = FALSE) const = 0;
+};
+
+#endif // XFA_FGAS_LAYOUT_FGAS_TEXTBREAK_H_
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