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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 CORE_SRC_REFLOW_AUTOREFLOW_H_
#define CORE_SRC_REFLOW_AUTOREFLOW_H_
#include "../../include/reflow/reflowengine.h"
#include "reflowedpage.h"
class CPDF_AutoReflowElement;
class CPDF_AutoReflowLayoutProvider;
typedef CFX_ArrayTemplate<CPDF_AutoReflowElement*> CAR_ElmPtrArray;
typedef CFX_ArrayTemplate<CPDF_PageObject*> CAR_ObjPtrArray;
class CRF_CELL
{
public:
CRF_CELL() { };
~CRF_CELL() { };
CFX_PtrList m_ObjList;
int m_CellWritingMode;
FX_RECT m_BBox;
};
class CPDF_AutoReflowElement : public IPDF_LayoutElement
{
public:
CPDF_AutoReflowElement(LayoutType layoutType = LayoutUnknown , CPDF_AutoReflowElement* pParent = NULL) ;
~CPDF_AutoReflowElement();
LayoutType GetType()
{
return m_ElmType;
}
void GetRect(CFX_FloatRect& rcRect) {};
int CountAttrValues(LayoutAttr attr_type);
LayoutEnum GetEnumAttr(LayoutAttr attr_type, int index);
FX_FLOAT GetNumberAttr(LayoutAttr attr_type, int index);
FX_COLORREF GetColorAttr(LayoutAttr attr_type, int index);
int CountChildren()
{
return m_ChildArray.GetSize();
}
IPDF_LayoutElement* GetChild(int index)
{
return m_ChildArray.GetAt(index);
}
IPDF_LayoutElement* GetParent()
{
return m_pParentElm;
}
int CountObjects()
{
return m_ObjArray.GetSize();
}
CPDF_PageObject* GetObject(int index)
{
return m_ObjArray.GetAt(index);
}
CPDF_AutoReflowElement* m_pParentElm;
LayoutType m_ElmType;
CAR_ElmPtrArray m_ChildArray;
CAR_ObjPtrArray m_ObjArray;
FX_FLOAT m_SpaceBefore;
};
#define AUTOREFLOW_STEP_GENERATELINE 1
#define AUTOREFLOW_STEP_GENERATEParagraph 2
#define AUTOREFLOW_STEP_CREATEELEMENT 3
#define AUTOREFLOW_STEP_REMOVEDATA 4
class CPDF_AutoReflowLayoutProvider : public IPDF_LayoutProvider
{
public:
CPDF_AutoReflowLayoutProvider(CPDF_PageObjects* pPage, FX_BOOL bReadOrder);
~CPDF_AutoReflowLayoutProvider();
void SetLayoutProviderStyle(LAYOUTPROVIDER_STYLE Style)
{
m_Style = Style;
}
LayoutStatus StartLoad(IFX_Pause* pPause = NULL);
LayoutStatus Continue();
int GetPosition();
IPDF_LayoutElement* GetRoot()
{
return m_pRoot;
}
FX_FLOAT GetObjMinCell(CPDF_PageObject* pObj);
void Conver2AppreceOrder(const CPDF_PageObjects* pStreamOrderObjs, CPDF_PageObjects* pAppraceOrderObjs);
void ReleaseElm(CPDF_AutoReflowElement*& pElm, FX_BOOL bReleaseChildren = TRUE);
void GenerateCell();
void GenerateStructTree();
void GenerateLine(CFX_PtrArray& cellArray);
void GenerateParagraph(CFX_PtrArray& cellArray);
void CreateElement();
void AddObjectArray(CPDF_AutoReflowElement* pElm, CFX_PtrList& ObjList);
FX_FLOAT GetLayoutOrderHeight(CPDF_PageObject* pCurObj);
FX_FLOAT GetLayoutOrderWidth(CPDF_PageObject* pCurObj);
int GetWritingMode(CPDF_PageObject* pPreObj, CPDF_PageObject* pCurObj);
int GetRectStart(FX_RECT rect);
int GetRectEnd(FX_RECT rect);
int GetRectTop(FX_RECT rect);
int GetRectBottom(FX_RECT rect);
int GetRectHeight(FX_RECT rect);
int GetRectWidth(FX_RECT rect);
void ProcessObj(CFX_PtrArray& cellArray, CPDF_PageObject* pObj, CFX_AffineMatrix matrix);
int32_t LogicPreObj(CPDF_PageObject* pObj);
CPDF_AutoReflowElement* m_pRoot;
CPDF_AutoReflowElement* m_pCurrElm;
CPDF_Page* m_pPDFPage;
IFX_Pause* m_pPause;
CFX_AffineMatrix m_PDFDisplayMatrix;
CPDF_PageObject* m_pPreObj;
LayoutStatus m_Status;
int m_WritingMode;
CFX_PtrArray m_CellArray;
FX_BOOL m_bReadOrder;
LAYOUTPROVIDER_STYLE m_Style;
CFX_PtrArray m_cellArray;
int m_Step;
};
#endif // CORE_SRC_REFLOW_AUTOREFLOW_H_
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