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// Copyright 2017 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_FXFA_APP_CXFA_TEXTLAYOUT_H_
#define XFA_FXFA_APP_CXFA_TEXTLAYOUT_H_
#include <memory>
#include "core/fxcrt/fx_basic.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_string.h"
#include "xfa/fde/css/fde_css.h"
#include "xfa/fgas/layout/fgas_rtfbreak.h"
#include "xfa/fxfa/app/cxfa_textparser.h"
class CFDE_Brush;
class CFDE_Pen;
class CFDE_RenderDevice;
class CFDE_XMLNode;
class CFX_RTFBreak;
class CXFA_LoaderContext;
class CXFA_LinkUserData;
class CXFA_Node;
class CXFA_PieceLine;
class CXFA_TextProvider;
class CXFA_TextTabstopsContext;
class IFDE_CSSComputedStyle;
class XFA_TextPiece;
class CXFA_TextLayout {
public:
explicit CXFA_TextLayout(CXFA_TextProvider* pTextProvider);
~CXFA_TextLayout();
int32_t GetText(CFX_WideString& wsText);
FX_FLOAT GetLayoutHeight();
FX_FLOAT StartLayout(FX_FLOAT fWidth = -1);
bool DoLayout(int32_t iBlockIndex,
FX_FLOAT& fCalcHeight,
FX_FLOAT fContentAreaHeight = -1,
FX_FLOAT fTextHeight = -1);
bool CalcSize(const CFX_SizeF& minSize,
const CFX_SizeF& maxSize,
CFX_SizeF& defaultSize);
bool Layout(const CFX_SizeF& size, FX_FLOAT* fHeight = nullptr);
void ItemBlocks(const CFX_RectF& rtText, int32_t iBlockIndex);
bool DrawString(CFX_RenderDevice* pFxDevice,
const CFX_Matrix& tmDoc2Device,
const CFX_RectF& rtClip,
int32_t iBlock = 0);
bool IsLoaded() const { return m_pieceLines.GetSize() > 0; }
void Unload();
const CFX_ArrayTemplate<CXFA_PieceLine*>* GetPieceLines();
bool m_bHasBlock;
CFX_Int32Array m_Blocks;
private:
void GetTextDataNode();
CFDE_XMLNode* GetXMLContainerNode();
CFX_RTFBreak* CreateBreak(bool bDefault);
void InitBreak(FX_FLOAT fLineWidth);
void InitBreak(IFDE_CSSComputedStyle* pStyle,
FDE_CSSDISPLAY eDisplay,
FX_FLOAT fLineWidth,
CFDE_XMLNode* pXMLNode,
IFDE_CSSComputedStyle* pParentStyle = nullptr);
bool Loader(const CFX_SizeF& szText,
FX_FLOAT& fLinePos,
bool bSavePieces = true);
void LoadText(CXFA_Node* pNode,
const CFX_SizeF& szText,
FX_FLOAT& fLinePos,
bool bSavePieces);
bool LoadRichText(CFDE_XMLNode* pXMLNode,
const CFX_SizeF& szText,
FX_FLOAT& fLinePos,
IFDE_CSSComputedStyle* pParentStyle,
bool bSavePieces,
CXFA_LinkUserData* pLinkData = nullptr,
bool bEndBreak = true,
bool bIsOl = false,
int32_t iLiCount = 0);
bool AppendChar(const CFX_WideString& wsText,
FX_FLOAT& fLinePos,
FX_FLOAT fSpaceAbove,
bool bSavePieces);
void AppendTextLine(uint32_t dwStatus,
FX_FLOAT& fLinePos,
bool bSavePieces,
bool bEndBreak = false);
void EndBreak(uint32_t dwStatus, FX_FLOAT& fLinePos, bool bDefault);
bool IsEnd(bool bSavePieces);
void ProcessText(CFX_WideString& wsText);
void UpdateAlign(FX_FLOAT fHeight, FX_FLOAT fBottom);
void RenderString(CFDE_RenderDevice* pDevice,
CFDE_Brush* pBrush,
CXFA_PieceLine* pPieceLine,
int32_t iPiece,
FXTEXT_CHARPOS* pCharPos,
const CFX_Matrix& tmDoc2Device);
void RenderPath(CFDE_RenderDevice* pDevice,
CFDE_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,
bool bCharCode = false);
bool ToRun(const XFA_TextPiece* pPiece, FX_RTFTEXTOBJ& tr);
void DoTabstops(IFDE_CSSComputedStyle* pStyle, CXFA_PieceLine* pPieceLine);
bool Layout(int32_t iBlock);
int32_t CountBlocks() const;
CXFA_TextProvider* m_pTextProvider;
CXFA_Node* m_pTextDataNode;
bool m_bRichText;
std::unique_ptr<CFX_RTFBreak> m_pBreak;
std::unique_ptr<CXFA_LoaderContext> m_pLoader;
int32_t m_iLines;
FX_FLOAT m_fMaxWidth;
CXFA_TextParser m_textParser;
CFX_ArrayTemplate<CXFA_PieceLine*> m_pieceLines;
std::unique_ptr<CXFA_TextTabstopsContext> m_pTabstopContext;
bool m_bBlockContinue;
};
#endif // XFA_FXFA_APP_CXFA_TEXTLAYOUT_H_
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