core/ASCOfficePDFReader/Page.h

#ifndef _PAGE_H
#define _PAGE_H

#include "Object.h"
#include "GlobalParams.h"

class Dict;
class XRef;
class OutputDev;
class Links;
class Catalog;

//------------------------------------------------------------------------

class PDFRectangle 
{
public:

	PDFRectangle() 
	{ 
		m_dLeft = m_dBottom = m_dRight = m_dTop = 0; 
	}
	PDFRectangle(double dLeft, double dBottom, double dRight, double dTop)
	{ 
		m_dLeft   = dLeft; 
		m_dBottom = dBottom; 
		m_dRight  = dRight; 
		m_dTop    = dTop; 
	}
	BOOL IsValid() 
	{ 
		return m_dLeft != 0 || m_dBottom != 0 || m_dRight != 0 || m_dTop != 0; 
	}
	void ClipTo(PDFRectangle *pRect);

public:

	double m_dLeft;
	double m_dBottom;
	double m_dRight;
	double m_dTop;
};

//------------------------------------------------------------------------
// PageAttrs
//------------------------------------------------------------------------

class PageAttrs 
{
public:

	// Ñòðîèì íîâûé îáúåêò PageAttrs ëèáî ñ íà÷àëüíûìè íàñòðîéêàìè èç
	// pAttrs, ëèáî ñî ñòàíäàðòíûìè íà÷àëüíûìè íàñòðîéêàìè(åñëè pAttrs =
	// NULL).
	PageAttrs(PageAttrs *pAttrs, Dict *pDict);

	~PageAttrs();

	PDFRectangle *GetMediaBox() 
	{
		return &m_oMediaBox; 
	}
	PDFRectangle *GetCropBox() 
	{ 
		return &m_pCropBox; 
	}
	BOOL IsCropped() 
	{
		return m_bHaveCropBox; 
	}
	PDFRectangle *GetBleedBox() 
	{ 
		return &m_oBleedBox; 
	}
	PDFRectangle *GetTrimBox() 
	{
		return &m_oTrimBox; 
	}
	PDFRectangle *GetArtBox() 
	{
		return &m_oArtBox; 
	}
	int           GetRotate() 
	{ 
		return m_nRotate; 
	}
	StringExt    *GetLastModified()
    { 
		return ( m_oLastModified.IsString() ? m_oLastModified.GetString() : (StringExt *)NULL ); 
	}
	Dict         *GetBoxColorInfo()
    { 
		return ( m_oBoxColorInfo.IsDict() ? m_oBoxColorInfo.GetDict() : (Dict *)NULL ); 
	}
	Dict         *GetGroup()
    { 
		return ( m_oGroup.IsDict() ? m_oGroup.GetDict() : (Dict *)NULL ); 
	}
	Stream       *GetMetadata()
    { 
		return ( m_oMetadata.IsStream() ? m_oMetadata.GetStream() : (Stream *)NULL ); 
	}
	Dict         *GetPieceInfo()
    {
		return ( m_oPieceInfo.IsDict() ? m_oPieceInfo.GetDict() : (Dict *)NULL ); 
	}
	Dict         *GetSeparationInfo()
    { 
		return ( m_oSeparationInfo.IsDict() ? m_oSeparationInfo.GetDict() : (Dict *)NULL ); 
	}
	Dict         *GetResourceDict()
    { 
		return ( m_oResources.IsDict() ? m_oResources.GetDict() : (Dict *)NULL ); 
	}

private:

	BOOL ReadBox(Dict *pDict, char *sKey, PDFRectangle *pBox);

private:

	PDFRectangle m_oMediaBox;
	PDFRectangle m_pCropBox;
	BOOL         m_bHaveCropBox;
	PDFRectangle m_oBleedBox;
	PDFRectangle m_oTrimBox;
	PDFRectangle m_oArtBox;

	int          m_nRotate;

	Object       m_oLastModified;
	Object       m_oBoxColorInfo;
	Object       m_oGroup;
	Object       m_oMetadata;
	Object       m_oPieceInfo;
	Object       m_oSeparationInfo;
	Object       m_oResources;
};

//------------------------------------------------------------------------
// Page
//------------------------------------------------------------------------

class Page 
{
public:

	Page(GlobalParams *pGlobalParams, XRef *pXref, int nNum, Dict *pPageDict, PageAttrs *pAttrs);

	~Page();

	BOOL IsValid() 
	{ 
		return m_bValid; 
	}

	int GetNum() 
	{ 
		return m_nNumber; 
	}
	PDFRectangle *GetMediaBox() 
	{ 
		return m_pAttrs->GetMediaBox(); 
	}
	PDFRectangle *GetCropBox() 
	{ 
		return m_pAttrs->GetCropBox(); 
	}
	BOOL IsCropped() 
	{ 
		return m_pAttrs->IsCropped(); 
	}
	double GetMediaWidth() 
    { 
		return m_pAttrs->GetMediaBox()->m_dRight - m_pAttrs->GetMediaBox()->m_dLeft; 
	}
	double GetMediaHeight()
    { 
		return m_pAttrs->GetMediaBox()->m_dTop - m_pAttrs->GetMediaBox()->m_dBottom; 
	}
	double GetCropWidth() 
    { 
		return m_pAttrs->GetCropBox()->m_dRight - m_pAttrs->GetCropBox()->m_dLeft; 
	}
	double GetCropHeight()
    { 
		return m_pAttrs->GetCropBox()->m_dTop - m_pAttrs->GetCropBox()->m_dBottom; 
	}
	PDFRectangle *GetBleedBox() 
	{ 
		return m_pAttrs->GetBleedBox(); 
	}
	PDFRectangle *GetTrimBox() 
	{ 
		return m_pAttrs->GetTrimBox(); 
	}
	PDFRectangle *GetArtBox() 
	{ 
		return m_pAttrs->GetArtBox(); 
	}
	int GetRotate() 
	{ 
		return m_pAttrs->GetRotate(); 
	}
	StringExt *GetLastModified() 
	{ 
		return m_pAttrs->GetLastModified(); 
	}
	Dict *GetBoxColorInfo() 
	{ 
		return m_pAttrs->GetBoxColorInfo(); 
	}
	Dict *GetGroup() 
	{ 
		return m_pAttrs->GetGroup(); 
	}
	Stream *GetMetadata() 
	{ 
		return m_pAttrs->GetMetadata(); 
	}
	Dict *GetPieceInfo() 
	{ 
		return m_pAttrs->GetPieceInfo(); 
	}
	Dict *GetSeparationInfo() 
	{ 
		return m_pAttrs->GetSeparationInfo(); 
	}

	// Resource
	Dict *GetResourceDict() 
	{ 
		return m_pAttrs->GetResourceDict(); 
	}

	// Annotations
	Object *GetAnnots(Object *pObject) 
	{ 
		return m_oAnnots.Fetch( m_pXref, pObject); 
	}

	// Links
	Links *GetLinks(Catalog *catalog);

	// Contents
	Object *GetContents(Object *pObject) 
	{ 
		return m_oContents.Fetch( m_pXref, pObject); 
	}

	// 
	void Display(OutputDev *pOut, double dHorizDPI, double dVertDPI, int nRotate, BOOL bUseMediaBox, BOOL bCrop, BOOL bPrinting, Catalog *pCatalog, BOOL (*abortCheckCbk)(void *pData) = NULL, void *abortCheckCbkData = NULL);

	void DisplaySlice(OutputDev *pOut, double dHorizDPI, double dVertDPI, int nRotate, BOOL bUseMediaBox, BOOL bCrop, int nSliceX, int nSliceY, int nSliceW, int nSliceH, BOOL bPrinting, Catalog *pCatalog, BOOL (*abortCheckCbk)(void *pData) = NULL, void *abortCheckCbkData = NULL);

	void MakeBox(double dHorizDPI, double dVertDPI, int nRotate, BOOL bUseMediaBox, BOOL bUpSideDown, double dSliceX, double dSliceY, double dSliceW, double dSliceH, PDFRectangle *pBox, BOOL *pbCrop);

	void ProcessLinks(OutputDev *pOut, Catalog *pCatalog);

	void GetDefaultCTM(double *pCTM, double dHorizDPI, double dVertDPI, int nRotate, BOOL bUseMediaBox, BOOL bUpSideDown);

private:

	XRef      *m_pXref;     // Òàáëèöà xref äëÿ äàííîãî PDF äîêóìåíòà
	int        m_nNumber;   // Íîìåð ñòðàíèöû
	PageAttrs *m_pAttrs;    // Page attributes
	Object     m_oAnnots;   // Annotations
	Object     m_oContents; // Ñîäåðæèìîå ñòðàíèöû
	Object     m_oContents2; 
	BOOL       m_bValid;    // 

	GlobalParams *m_pGlobalParams;
};

#endif /* _PAGE_H */