Initial commit.

1 files changed, 372 insertions, 0 deletions

diff --git a/core/src/reflow/reflowedpage.h b/core/src/reflow/reflowedpage.h
new file mode 100644
index 0000000000..b76834132e
--- /dev/null
+++ b/core/src/reflow/reflowedpage.h
@@ -0,0 +1,372 @@
+// 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 _REFLOWED_PAGE_H
+#define _REFLOWED_PAGE_H
+#include "../../include/reflow/reflowengine.h"
+#define GET_SIGNED(a) ( (a)>0 ? a/a : (a==0 ? 0 : -a/a) )
+class CRF_Data;
+class CRF_LineData;
+class CRF_CharData;
+class CRF_PathData;
+class CRF_ImageData;
+class CRF_Table;
+class CRF_AttrOperation;
+class CRF_OperationDate;
+class CPDF_ReflowedPage;
+class CPDF_Rect;
+class CFX_Object;
+typedef CFX_SegmentedArray<CRF_Data*> CRF_DataPtrArray;
+class CRF_CharState;
+typedef CFX_SegmentedArray<CRF_CharState> CRF_CharStateArray;
+#define SST_GE		1
+#define SST_BLSE	2
+#define SST_ILSE	3
+#define SST_IE		4
+class CPDF_LayoutProcessor_Reflow : public IPDF_LayoutProcessor, public CFX_Object
+{
+public:
+    CPDF_LayoutProcessor_Reflow();
+    ~CPDF_LayoutProcessor_Reflow();
+    void Init(FX_FLOAT TopIndent, FX_FLOAT fWidth, FX_FLOAT fHeight, CPDF_ReflowedPage* pReflowedPage, int flags, FX_FLOAT lineSpace);
+
+    LayoutStatus	StartProcess(IPDF_LayoutElement* pElement, IFX_Pause* pPause, const CFX_AffineMatrix* pPDFMatrix = NULL);
+    LayoutStatus	Continue();
+    int				GetPosition();
+protected:
+    void	FitPageMode();
+    void	ProcessElement(IPDF_LayoutElement* pElement, FX_FLOAT reflowWidth);
+    FX_FLOAT GetElmWidth(IPDF_LayoutElement* pElement);
+    CFX_FloatRect GetElmBBox(IPDF_LayoutElement* pElement);
+    void	ProcessTable(FX_FLOAT dx);
+    void	ProcessObjs(IPDF_LayoutElement* pElement, FX_FLOAT reflowWidth);
+    void	ProcessObject(CPDF_PageObject* pObj, FX_FLOAT reflowWidth, CFX_AffineMatrix objMatrix);
+    void	ProcessTextObject(CPDF_TextObject *pObj, FX_FLOAT reflowWidth, CFX_AffineMatrix objMatrix);
+    void	ProcessPathObject(CPDF_PathObject *pObj, FX_FLOAT reflowWidth);
+    void	ProcessUnitaryObjs(CPDF_PageObjects *pObjs, FX_FLOAT reflowWidth, CFX_AffineMatrix objMatrix);
+    FX_INT32 LogicPreObj(CPDF_TextObject* pObj);
+    int ProcessInsertObject(CPDF_TextObject* pObj, CFX_AffineMatrix formMatrix);
+    FX_WCHAR GetPreChar();
+    FX_BOOL IsSameTextObject(CPDF_TextObject* pTextObj1, CPDF_TextObject* pTextObj2);
+    int GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const;
+    FX_BOOL	IsCanBreakAfter(FX_DWORD unicode);
+    FX_BOOL	IsCanBreakBefore(FX_DWORD unicode);
+    FX_INT32 GetElementTypes(LayoutType layoutType);
+    void				CreateRFData(CPDF_PageObject* pObj, CFX_AffineMatrix* pMatrix = NULL);
+    CRF_CharState*		GetCharState(CPDF_TextObject* pObj, CPDF_Font* pFont, FX_FLOAT fHeight, FX_ARGB color);
+    FX_FLOAT		ConverWidth(FX_FLOAT width);
+    void	AddData2CurrLine(CRF_Data* pData);
+    void	AddTemp2CurrLine(int begin, int count );
+    void	Transform(const CFX_AffineMatrix* pMatrix, CRF_Data* pData);
+    void	Transform(const CFX_AffineMatrix* pMatrix, CRF_DataPtrArray* pDataArray, int beginPos, int count = 0);
+    FX_FLOAT GetDatasWidth( int beginPos, int endpos);
+    void	UpdateCurrLine();
+    FX_BOOL	FinishedCurrLine();
+    int m_flags;
+    CFX_AffineMatrix m_PDFMatrix;
+    LayoutStatus	m_Status;
+    CPDF_TextObject* m_pPreObj;
+    CFX_AffineMatrix m_perMatrix;
+    IPDF_LayoutElement*	m_pLayoutElement;
+    IPDF_LayoutElement* m_pRootElement;
+    FX_FLOAT		m_CurrRefWidth;
+    IFX_Pause*		m_pPause;
+    LayoutEnum		m_CurrWritingMode;
+    CPDF_ReflowedPage*	m_pReflowedPage;
+    FX_FLOAT		m_fRefWidth;
+    FX_FLOAT		m_TopIndent;
+    FX_FLOAT		m_fLineSpace;
+    FX_FLOAT		m_fScreenHeight;
+    FX_FLOAT		m_fCurrMaxWidth;
+    FX_FLOAT		m_fCurrLineWidth;
+    FX_FLOAT		m_fCurrLineHeight;
+    CRF_DataPtrArray*	m_pCurrLine;
+    CRF_DataPtrArray*	m_pTempLine;
+    FX_BOOL			m_bIllustration;
+    FX_FLOAT		m_fLineHeight;
+    LayoutEnum		m_TextAlign;
+    FX_FLOAT		m_StartIndent;
+    CFX_ArrayTemplate<CRF_Table*> m_TableArray;
+    int				m_PausePosition;
+};
+struct RF_TableCell {
+    int			m_BeginPos;
+    int			m_EndPos;
+    FX_FLOAT m_MaxWidth;
+    FX_FLOAT m_PosX;
+    FX_FLOAT	m_PosY;
+    FX_FLOAT	m_CellWidth;
+    FX_FLOAT m_CellHeight;
+    int			m_RowSpan;
+    int			m_ColSpan;
+    LayoutEnum	m_BlockAlign;
+    LayoutEnum	m_InlineAlign;
+};
+typedef CFX_ArrayTemplate<RF_TableCell*> CRF_TableCellArray;
+class CRF_Table : public CFX_Object
+{
+public:
+    CRF_Table()
+    {
+        m_TableWidth = 0;
+        m_nCol = 0;
+    }
+    CRF_TableCellArray  m_pCellArray;
+    CFX_WordArray		m_nCell;
+    int					m_nCol;
+    FX_FLOAT			m_TableWidth;
+    FX_FLOAT			m_ReflowPageHeight;
+};
+class CRF_CharState : public CFX_Object
+{
+public:
+    CPDF_Font*	m_pFont;
+    FX_ARGB		m_Color;
+    FX_BOOL		m_bVert;
+    FX_FLOAT m_fFontSize;
+    FX_FLOAT m_fAscent;
+    FX_FLOAT m_fDescent;
+
+    CPDF_TextObject*	m_pTextObj;
+};
+class CRF_PageInfo : public CFX_Object
+{
+public:
+    CRF_PageInfo(CPDF_PageObject* pPageObj, CRF_PageInfo* pParent = NULL)
+        : m_pPageObj(pPageObj) , m_pParent(pParent)
+    {
+    }
+    CPDF_PageObject* GetPageObj()
+    {
+        return m_pPageObj;
+    }
+    CPDF_Dictionary* GetFormDict()
+    {
+        if (NULL == m_pParent) {
+            return NULL;
+        }
+        CPDF_PageObject* pParentObj = m_pParent->GetPageObj();
+        if (NULL == pParentObj || PDFPAGE_FORM != pParentObj->m_Type) {
+            return NULL;
+        }
+        return ((CPDF_FormObject*)pParentObj)->m_pForm->m_pResources;
+    }
+protected:
+    CPDF_PageObject*		m_pPageObj;
+    CRF_PageInfo*			m_pParent;
+};
+class CPDF_ReflowedPage : public IPDF_ReflowedPage, public CFX_PrivateData, public CFX_Object
+{
+public:
+
+    CPDF_ReflowedPage(CFX_GrowOnlyPool*	pMemoryPool);
+    ~CPDF_ReflowedPage();
+    CFX_PrivateData*	GetPrivateDataCtrl()
+    {
+        return this;
+    };
+    void		GetDisplayMatrix(CFX_AffineMatrix& matrix, FX_INT32 xPos, FX_INT32 yPos, FX_INT32 xSize, FX_INT32 ySize, FX_INT32 iRotate, const CFX_AffineMatrix* pPageMatrix);
+
+    FX_FLOAT	GetPageHeight() ;
+    FX_FLOAT	GetPageWidth()
+    {
+        return m_PageWidth;
+    };
+    void		FocusGetData(const CFX_AffineMatrix matrix, FX_INT32 x, FX_INT32 y, CFX_ByteString& str);
+    FX_BOOL		FocusGetPosition(const CFX_AffineMatrix matrix, CFX_ByteString str, FX_INT32& x, FX_INT32& y);
+    CRF_DataPtrArray*	m_pReflowed;
+    FX_FLOAT			m_PageWidth;
+    FX_FLOAT			m_PageHeight;
+    FX_BOOL				m_bWaiting;
+    CRF_CharStateArray*	m_pCharState;
+    CFX_GrowOnlyPool*	m_pMemoryPool;
+    FX_BOOL				m_bCreateMemoryPool;
+    CPDF_Page*			m_pPDFPage;
+    FX_BOOL					RetainPageObjsMemberShip();
+    void					MarkPageObjMemberShip(CPDF_PageObject* pObj, CRF_PageInfo* pParent);
+    void					ReleasePageObjsMemberShip();
+    CPDF_Dictionary*		GetFormResDict(CPDF_PageObject* pObj);
+
+    CFX_MapPtrToPtr*		m_pPageInfos;
+};
+class CPDF_ProgressiveReflowPageParser : public IPDF_ProgressiveReflowPageParser, public CFX_Object
+{
+public:
+    CPDF_ProgressiveReflowPageParser();
+    ~CPDF_ProgressiveReflowPageParser() ;
+    void			Init();
+
+    ParseStatus		GetStatus()
+    {
+        return m_Status;
+    };
+
+    void			SetParserStyle(RF_ParseStyle style)
+    {
+        m_ParseStyle = style;
+    };
+    void			Start(IPDF_ReflowedPage* pReflowPage, CPDF_Page* pPage, FX_FLOAT TopIndent, FX_FLOAT fWidth, FX_FLOAT fHeight, IFX_Pause* pPause, int flags);
+    void			Continue(IFX_Pause* pPause);
+    int				GetPosition() ;
+
+    void			Clear();
+    ParseStatus		m_Status;
+protected:
+    RF_ParseStyle		m_ParseStyle;
+    CPDF_Page*			m_pPDFPage;
+    IFX_Pause*			m_pPause;
+    CPDF_ReflowedPage*	m_pReflowPage;
+    FX_FLOAT			m_TopIndent;
+    FX_FLOAT			m_ReflowedWidth;
+    FX_FLOAT			m_fScreenHeight;
+    IPDF_LayoutProvider*	m_pProvider;
+    IPDF_LayoutProcessor*	m_pReflowEngine;
+    int					m_nObjProcessed;
+    int m_flags;
+};
+class CPDF_ProgressiveReflowPageRender : public IPDF_ProgressiveReflowPageRender, public CFX_Object
+{
+public:
+    CPDF_ProgressiveReflowPageRender();
+    ~CPDF_ProgressiveReflowPageRender() ;
+
+    RenderStatus			GetStatus()
+    {
+        return m_Status;
+    };
+
+
+    void		SetDisplayColor(FX_COLORREF color);
+    void		Start(IPDF_ReflowedPage* pReflowPage, CFX_RenderDevice* pDevice, const CFX_AffineMatrix* pMatrix, IFX_Pause* pPause, int DitherBits);
+    void		Continue(IFX_Pause* pPause);
+    int			GetPosition();
+
+
+    void				Clear();
+protected:
+    void				Display(IFX_Pause* pPause);
+    RenderStatus m_Status;
+    CPDF_ReflowedPage*	m_pReflowPage;
+    CFX_AffineMatrix*	m_pDisplayMatrix;
+    int					m_CurrNum;
+    IFX_FontEncoding*	m_pFontEncoding;
+    CFX_RenderDevice*	m_pFXDevice;
+    int					m_DitherBits;
+    FX_COLORREF			m_DisplayColor;
+    typedef struct CRF_TextDataAtt {
+        CRF_TextDataAtt()
+        {
+            pFont = NULL;
+            fFontSize = 0.0f;
+            Color = 0;
+        }
+        CRF_TextDataAtt(CPDF_Font* font, FX_FLOAT fontSize, FX_ARGB color)
+        {
+            pFont = font;
+            fFontSize = fontSize;
+            Color = color;
+        }
+        CPDF_Font*  pFont;
+        FX_FLOAT    fFontSize;
+        FX_ARGB		Color;
+    } CRF_TEXTDATAATT;
+    inline bool isTextDataAttSame(CRF_TEXTDATAATT data1, CRF_TEXTDATAATT data2)
+    {
+        if (data1.pFont != data2.pFont) {
+            return false;
+        }
+        if (data1.Color != data2.Color) {
+            return false;
+        }
+        if (fabs(data1.fFontSize - data2.fFontSize) > 0.0f) {
+            return false;
+        }
+        return true;
+    };
+};
+#define TYPE_UNKNOW		0
+#define TYPE_TEXT		1
+#define TYPE_PATH		2
+#define TYPE_IMAGE		3
+#define TYPE_LINE		4
+class CRF_Data : public CFX_Object
+{
+public:
+    typedef enum {Unknow, Text, Image, Path, Line, paragraph} RF_DataType;
+    CRF_Data()
+    {
+        m_Type = Unknow;
+        m_Width = 0;
+        m_PosY = 0;
+        m_PosX = 0;
+        m_Height = 0;
+    }
+    RF_DataType	GetType()
+    {
+        return m_Type;
+    }
+    virtual		~CRF_Data() {}
+    RF_DataType 	m_Type;
+    FX_FLOAT	m_PosX;
+    FX_FLOAT	m_PosY;
+    FX_FLOAT	m_Width;
+    FX_FLOAT	m_Height;
+};
+class CRF_LineData : public CRF_Data
+{
+public:
+    CRF_LineData()
+    {
+        m_Type = Line;
+    }
+};
+class CRF_CharData : public CRF_Data
+{
+public:
+    CRF_CharData()
+    {
+        m_Type = Text;
+        m_CharCode = -1;
+    }
+    CRF_CharState*	m_pCharState;
+    FX_DWORD		m_CharCode;
+};
+class CRF_ImageData : public CRF_Data
+{
+public:
+    CRF_ImageData()
+    {
+        m_Type = Image;
+        m_pBitmap = NULL;
+    }
+    ~CRF_ImageData()
+    {
+        if(m_pBitmap) {
+            delete m_pBitmap;
+        }
+        m_pBitmap = NULL;
+    }
+    CFX_AffineMatrix m_Matrix;
+    CFX_DIBitmap*	m_pBitmap;
+};
+class CRF_PathData : public CRF_Data
+{
+public:
+    CRF_PathData()
+    {
+        m_Type = Path;
+        m_bDecoration = FALSE;
+    }
+    ~CRF_PathData() {};
+    FX_BOOL			m_bDecoration;
+    CPDF_Path			m_pPathData;
+    CFX_AffineMatrix	m_pPath2Device;
+    CPDF_GraphState		m_pGraphState;
+    FX_ARGB		m_fill_argb;
+    FX_ARGB		m_stroke_argb;
+    int			m_fill_mode;
+};
+#endif