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diff --git a/xfa/src/fxfa/app/xfa_textlayout.h b/xfa/src/fxfa/app/xfa_textlayout.h
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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_FXFA_APP_XFA_TEXTLAYOUT_H_
+#define XFA_SRC_FXFA_APP_XFA_TEXTLAYOUT_H_
+
+#include "xfa/src/fdp/include/fde_brs.h"
+#include "xfa/src/fdp/include/fde_css.h"
+#include "xfa/src/fdp/include/fde_rdv.h"
+#include "xfa/src/fgas/include/fx_rbk.h"
+#include "xfa/src/fxfa/app/xfa_ffdoc.h"
+#include "xfa/src/fxfa/parser/xfa_object.h"
+
+#define XFA_LOADERCNTXTFLG_FILTERSPACE 0x001
+
+class CXFA_Para;
+class CXFA_Font;
+class CXFA_TextTabstopsContext;
+
+class IXFA_TextProvider {
+ public:
+ virtual ~IXFA_TextProvider() {}
+ virtual CXFA_Node* GetTextNode(FX_BOOL& bRichText) = 0;
+ virtual CXFA_Para GetParaNode() = 0;
+ virtual CXFA_Font GetFontNode() = 0;
+ virtual FX_BOOL IsCheckButtonAndAutoWidth() = 0;
+ virtual CXFA_FFDoc* GetDocNode() = 0;
+ virtual FX_BOOL GetEmbbedObj(FX_BOOL bURI,
+ FX_BOOL bRaw,
+ const CFX_WideString& wsAttr,
+ CFX_WideString& wsValue) = 0;
+};
+
+class CXFA_CSSTagProvider : public IFDE_CSSTagProvider {
+ public:
+ CXFA_CSSTagProvider() : m_bTagAviliable(FALSE), m_bContent(FALSE) {}
+ virtual ~CXFA_CSSTagProvider();
+ virtual CFX_WideStringC GetTagName() { return m_wsTagName; }
+ virtual FX_POSITION GetFirstAttribute() {
+ return m_Attributes.GetStartPosition();
+ }
+ virtual void GetNextAttribute(FX_POSITION& pos,
+ CFX_WideStringC& wsAttr,
+ CFX_WideStringC& wsValue);
+ void SetTagNameObj(const CFX_WideString& wsName) { m_wsTagName = wsName; }
+ void SetAttribute(const CFX_WideString& wsAttr,
+ const CFX_WideString& wsValue);
+ FX_BOOL m_bTagAviliable;
+ FX_BOOL m_bContent;
+
+ protected:
+ CFX_WideString m_wsTagName;
+ CFX_MapPtrToPtr m_Attributes;
+};
+
+class CXFA_TextParseContext : public CFX_Target {
+ public:
+ CXFA_TextParseContext()
+ : m_pParentStyle(nullptr),
+ m_ppMatchedDecls(nullptr),
+ m_dwMatchedDecls(0),
+ m_eDisplay(FDE_CSSDISPLAY_None) {}
+ ~CXFA_TextParseContext() {
+ if (m_pParentStyle)
+ m_pParentStyle->Release();
+ FX_Free(m_ppMatchedDecls);
+ }
+ void SetDisplay(FDE_CSSDISPLAY eDisplay) { m_eDisplay = eDisplay; }
+ FDE_CSSDISPLAY GetDisplay() const { return m_eDisplay; }
+ void SetDecls(const IFDE_CSSDeclaration** ppDeclArray, int32_t iDeclCount);
+ const IFDE_CSSDeclaration** GetDecls() {
+ return (const IFDE_CSSDeclaration**)m_ppMatchedDecls;
+ }
+ FX_DWORD CountDecls() const { return m_dwMatchedDecls; }
+ IFDE_CSSComputedStyle* m_pParentStyle;
+
+ protected:
+ IFDE_CSSDeclaration** m_ppMatchedDecls;
+ FX_DWORD m_dwMatchedDecls;
+ FDE_CSSDISPLAY m_eDisplay;
+};
+
+class CXFA_TextParser {
+ public:
+ CXFA_TextParser() : m_pAllocator(NULL), m_pSelector(NULL), m_pUASheet(NULL) {}
+ virtual ~CXFA_TextParser();
+ void Reset();
+ void DoParse(IFDE_XMLNode* pXMLContainer, IXFA_TextProvider* pTextProvider);
+ IFDE_CSSComputedStyle* CreateRootStyle(IXFA_TextProvider* pTextProvider);
+ IFDE_CSSComputedStyle* ComputeStyle(IFDE_XMLNode* pXMLNode,
+ IFDE_CSSComputedStyle* pParentStyle);
+ FX_BOOL IsParsed() const { return m_pAllocator != NULL; }
+
+ int32_t GetVAlgin(IXFA_TextProvider* pTextProvider) const;
+ FX_FLOAT GetTabInterval(IFDE_CSSComputedStyle* pStyle) const;
+ int32_t CountTabs(IFDE_CSSComputedStyle* pStyle) const;
+ FX_BOOL IsSpaceRun(IFDE_CSSComputedStyle* pStyle) const;
+ FX_BOOL GetTabstops(IFDE_CSSComputedStyle* pStyle,
+ CXFA_TextTabstopsContext* pTabstopContext);
+ IFX_Font* GetFont(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle) const;
+ FX_FLOAT GetFontSize(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle) const;
+ int32_t GetHorScale(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle,
+ IFDE_XMLNode* pXMLNode) const;
+ int32_t GetVerScale(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle) const;
+ void GetUnderline(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle,
+ int32_t& iUnderline,
+ int32_t& iPeriod) const;
+ void GetLinethrough(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle,
+ int32_t& iLinethrough) const;
+ FX_ARGB GetColor(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle) const;
+ FX_FLOAT GetBaseline(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle) const;
+ FX_FLOAT GetLineHeight(IXFA_TextProvider* pTextProvider,
+ IFDE_CSSComputedStyle* pStyle,
+ FX_BOOL bFirst,
+ FX_FLOAT fVerScale) const;
+ FX_BOOL GetEmbbedObj(IXFA_TextProvider* pTextProvider,
+ IFDE_XMLNode* pXMLNode,
+ CFX_WideString& wsValue);
+ CXFA_TextParseContext* GetParseContextFromMap(IFDE_XMLNode* pXMLNode);
+
+ private:
+ void InitCSSData(IXFA_TextProvider* pTextProvider);
+ void ParseRichText(IFDE_XMLNode* pXMLNode,
+ IFDE_CSSComputedStyle* pParentStyle);
+ void ParseTagInfo(IFDE_XMLNode* pXMLNode, CXFA_CSSTagProvider& tagProvider);
+ IFDE_CSSStyleSheet* LoadDefaultSheetStyle();
+ IFDE_CSSComputedStyle* CreateStyle(IFDE_CSSComputedStyle* pParentStyle);
+ IFX_MEMAllocator* m_pAllocator;
+ IFDE_CSSStyleSelector* m_pSelector;
+ IFDE_CSSStyleSheet* m_pUASheet;
+ CFX_MapPtrTemplate<IFDE_XMLNode*, CXFA_TextParseContext*>
+ m_mapXMLNodeToParseContext;
+};
+
+class CXFA_LoaderContext {
+ public:
+ CXFA_LoaderContext()
+ : m_bSaveLineHeight(FALSE),
+ m_fWidth(0),
+ m_fHeight(0),
+ m_fLastPos(0),
+ m_fStartLineOffset(0),
+ m_iChar(0),
+ m_iTotalLines(-1),
+ m_pXMLNode(NULL),
+ m_pNode(NULL),
+ m_pParentStyle(NULL),
+ m_dwFlags(0) {}
+ FX_BOOL m_bSaveLineHeight;
+ FX_FLOAT m_fWidth;
+ FX_FLOAT m_fHeight;
+ FX_FLOAT m_fLastPos;
+ FX_FLOAT m_fStartLineOffset;
+ int32_t m_iChar;
+ int32_t m_iLines;
+ int32_t m_iTotalLines;
+ IFDE_XMLNode* m_pXMLNode;
+ CXFA_Node* m_pNode;
+ IFDE_CSSComputedStyle* m_pParentStyle;
+ CFX_ArrayTemplate<FX_FLOAT> m_lineHeights;
+ FX_DWORD m_dwFlags;
+ CFX_FloatArray m_BlocksHeight;
+};
+
+class CXFA_LinkUserData : public IFX_Unknown, public CFX_Target {
+ public:
+ CXFA_LinkUserData(IFX_MEMAllocator* pAllocator, FX_WCHAR* pszText)
+ : m_pAllocator(pAllocator), m_dwRefCount(1) {
+ m_pszURLContent = pszText;
+ }
+ ~CXFA_LinkUserData() {}
+ virtual FX_DWORD Release() {
+ FX_DWORD dwRefCount = --m_dwRefCount;
+ if (dwRefCount <= 0) {
+ FXTARGET_DeleteWith(CXFA_LinkUserData, m_pAllocator, this);
+ }
+ return dwRefCount;
+ }
+ virtual FX_DWORD AddRef() { return ++m_dwRefCount; }
+
+ public:
+ const FX_WCHAR* GetLinkURL() { return m_pszURLContent; }
+
+ protected:
+ IFX_MEMAllocator* m_pAllocator;
+ FX_DWORD m_dwRefCount;
+ CFX_WideString m_pszURLContent;
+};
+
+class CXFA_TextUserData : public IFX_Unknown, public CFX_Target {
+ public:
+ CXFA_TextUserData(IFX_MEMAllocator* pAllocator, IFDE_CSSComputedStyle* pStyle)
+ : m_pStyle(pStyle),
+ m_pLinkData(nullptr),
+ m_pAllocator(pAllocator),
+ m_dwRefCount(0) {
+ FXSYS_assert(m_pAllocator);
+ if (m_pStyle)
+ m_pStyle->AddRef();
+ }
+ CXFA_TextUserData(IFX_MEMAllocator* pAllocator,
+ IFDE_CSSComputedStyle* pStyle,
+ CXFA_LinkUserData* pLinkData)
+ : m_pStyle(pStyle),
+ m_pLinkData(pLinkData),
+ m_pAllocator(pAllocator),
+ m_dwRefCount(0) {
+ FXSYS_assert(m_pAllocator);
+ if (m_pStyle)
+ m_pStyle->AddRef();
+ }
+ ~CXFA_TextUserData() {
+ if (m_pStyle)
+ m_pStyle->Release();
+ if (m_pLinkData)
+ m_pLinkData->Release();
+ }
+ virtual FX_DWORD Release() {
+ FX_DWORD dwRefCount = --m_dwRefCount;
+ if (dwRefCount == 0) {
+ FXTARGET_DeleteWith(CXFA_TextUserData, m_pAllocator, this);
+ }
+ return dwRefCount;
+ }
+ virtual FX_DWORD AddRef() { return ++m_dwRefCount; }
+
+ IFDE_CSSComputedStyle* m_pStyle;
+ CXFA_LinkUserData* m_pLinkData;
+
+ protected:
+ IFX_MEMAllocator* m_pAllocator;
+ FX_DWORD m_dwRefCount;
+};
+
+struct XFA_TEXTPIECE : public CFX_Target {
+ XFA_TEXTPIECE() : pszText(nullptr), pFont(nullptr), pLinkData(nullptr) {}
+ ~XFA_TEXTPIECE() {
+ if (pLinkData)
+ pLinkData->Release();
+ }
+
+ FX_WCHAR* pszText;
+ int32_t iChars;
+ int32_t* pWidths;
+ int32_t iHorScale;
+ int32_t iVerScale;
+ int32_t iBidiLevel;
+ int32_t iUnderline;
+ int32_t iPeriod;
+ int32_t iLineThrough;
+ IFX_Font* pFont;
+ FX_ARGB dwColor;
+ FX_FLOAT fFontSize;
+ CFX_RectF rtPiece;
+ CXFA_LinkUserData* pLinkData;
+};
+typedef CFX_ArrayTemplate<XFA_TEXTPIECE*> CXFA_PieceArray;
+
+class CXFA_PieceLine : public CFX_Target {
+ public:
+ CXFA_PieceLine() {}
+ CXFA_PieceArray m_textPieces;
+ CFX_Int32Array m_charCounts;
+};
+typedef CFX_ArrayTemplate<CXFA_PieceLine*> CXFA_PieceLineArray;
+
+struct XFA_TABSTOPS {
+ FX_DWORD dwAlign;
+ FX_FLOAT fTabstops;
+};
+
+class CXFA_TextTabstopsContext {
+ public:
+ CXFA_TextTabstopsContext()
+ : m_iTabCount(0),
+ m_iTabIndex(-1),
+ m_bTabstops(FALSE),
+ m_fTabWidth(0),
+ m_fLeft(0) {}
+ void Append(FX_DWORD dwAlign, FX_FLOAT fTabstops) {
+ int32_t i = 0;
+ for (i = 0; i < m_iTabCount; i++) {
+ XFA_TABSTOPS* pTabstop = m_tabstops.GetDataPtr(i);
+ if (fTabstops < pTabstop->fTabstops) {
+ break;
+ }
+ }
+ m_tabstops.InsertSpaceAt(i, 1);
+ XFA_TABSTOPS tabstop;
+ tabstop.dwAlign = dwAlign;
+ tabstop.fTabstops = fTabstops;
+ m_tabstops.SetAt(i, tabstop);
+ m_iTabCount++;
+ }
+ void RemoveAll() {
+ m_tabstops.RemoveAll();
+ m_iTabCount = 0;
+ }
+ void Reset() {
+ m_iTabIndex = -1;
+ m_bTabstops = FALSE;
+ m_fTabWidth = 0;
+ m_fLeft = 0;
+ }
+ CFX_ArrayTemplate<XFA_TABSTOPS> m_tabstops;
+ int32_t m_iTabCount;
+ int32_t m_iTabIndex;
+ FX_BOOL m_bTabstops;
+ FX_FLOAT m_fTabWidth;
+ FX_FLOAT m_fLeft;
+};
+
+class CXFA_TextLayout {
+ public:
+ CXFA_TextLayout(IXFA_TextProvider* pTextProvider);
+ virtual ~CXFA_TextLayout();
+ int32_t GetText(CFX_WideString& wsText);
+ FX_FLOAT GetLayoutHeight();
+ FX_FLOAT StartLayout(FX_FLOAT fWidth = -1);
+ FX_BOOL DoLayout(int32_t iBlockIndex,
+ FX_FLOAT& fCalcHeight,
+ FX_FLOAT fContentAreaHeight = -1,
+ FX_FLOAT fTextHeight = -1);
+
+ FX_BOOL CalcSize(const CFX_SizeF& minSize,
+ const CFX_SizeF& maxSize,
+ CFX_SizeF& defaultSize);
+ FX_BOOL Layout(const CFX_SizeF& size, FX_FLOAT* fHeight = NULL);
+ void ItemBlocks(const CFX_RectF& rtText, int32_t iBlockIndex);
+ FX_BOOL DrawString(CFX_RenderDevice* pFxDevice,
+ const CFX_Matrix& tmDoc2Device,
+ const CFX_RectF& rtClip,
+ int32_t iBlock = 0);
+ FX_BOOL IsLoaded() const { return m_pieceLines.GetSize() > 0; }
+ void Unload();
+ const CXFA_PieceLineArray* GetPieceLines();
+
+ FX_BOOL m_bHasBlock;
+ CFX_Int32Array m_Blocks;
+
+ private:
+ void GetTextDataNode();
+ IFDE_XMLNode* GetXMLContainerNode();
+ IFX_RTFBreak* CreateBreak(FX_BOOL bDefault);
+ void InitBreak(FX_FLOAT fLineWidth);
+ void InitBreak(IFDE_CSSComputedStyle* pStyle,
+ FDE_CSSDISPLAY eDisplay,
+ FX_FLOAT fLineWidth,
+ IFDE_XMLNode* pXMLNode,
+ IFDE_CSSComputedStyle* pParentStyle = NULL);
+ FX_BOOL Loader(const CFX_SizeF& szText,
+ FX_FLOAT& fLinePos,
+ FX_BOOL bSavePieces = TRUE);
+ void LoadText(CXFA_Node* pNode,
+ const CFX_SizeF& szText,
+ FX_FLOAT& fLinePos,
+ FX_BOOL bSavePieces);
+ FX_BOOL LoadRichText(IFDE_XMLNode* pXMLNode,
+ const CFX_SizeF& szText,
+ FX_FLOAT& fLinePos,
+ IFDE_CSSComputedStyle* pParentStyle,
+ FX_BOOL bSavePieces,
+ CXFA_LinkUserData* pLinkData = NULL,
+ FX_BOOL bEndBreak = TRUE,
+ FX_BOOL bIsOl = FALSE,
+ int32_t iLiCount = 0);
+ FX_BOOL AppendChar(const CFX_WideString& wsText,
+ FX_FLOAT& fLinePos,
+ FX_FLOAT fSpaceAbove,
+ FX_BOOL bSavePieces);
+ void AppendTextLine(FX_DWORD dwStatus,
+ FX_FLOAT& fLinePos,
+ FX_BOOL bSavePieces,
+ FX_BOOL bEndBreak = FALSE);
+ void EndBreak(FX_DWORD dwStatus, FX_FLOAT& fLinePos, FX_BOOL bDefault);
+ FX_BOOL IsEnd(FX_BOOL bSavePieces);
+ void ProcessText(CFX_WideString& wsText);
+ void UpdateAlign(FX_FLOAT fHeight, FX_FLOAT fBottom);
+ void RenderString(IFDE_RenderDevice* pDevice,
+ IFDE_SolidBrush* pBrush,
+ CXFA_PieceLine* pPieceLine,
+ int32_t iPiece,
+ FXTEXT_CHARPOS* pCharPos,
+ const CFX_Matrix& tmDoc2Device);
+ void RenderPath(IFDE_RenderDevice* pDevice,
+ IFDE_Pen* pPen,
+ CXFA_PieceLine* pPieceLine,
+ int32_t iPiece,
+ FXTEXT_CHARPOS* pCharPos,
+ const CFX_Matrix& tmDoc2Device);
+ int32_t GetDisplayPos(const XFA_TEXTPIECE* pPiece,
+ FXTEXT_CHARPOS* pCharPos,
+ FX_BOOL bCharCode = FALSE);
+ FX_BOOL ToRun(const XFA_TEXTPIECE* pPiece, FX_RTFTEXTOBJ& tr);
+ void DoTabstops(IFDE_CSSComputedStyle* pStyle, CXFA_PieceLine* pPieceLine);
+ FX_BOOL Layout(int32_t iBlock);
+ int32_t CountBlocks() const;
+
+ IXFA_TextProvider* m_pTextProvider;
+ CXFA_Node* m_pTextDataNode;
+ FX_BOOL m_bRichText;
+ IFX_MEMAllocator* m_pAllocator;
+ IFX_RTFBreak* m_pBreak;
+ CXFA_LoaderContext* m_pLoader;
+ int32_t m_iLines;
+ FX_FLOAT m_fMaxWidth;
+ CXFA_TextParser m_textParser;
+ CXFA_PieceLineArray m_pieceLines;
+ CXFA_TextTabstopsContext* m_pTabstopContext;
+ FX_BOOL m_bBlockContinue;
+};
+
+#endif // XFA_SRC_FXFA_APP_XFA_TEXTLAYOUT_H_