core/ASCOfficePDFReader/PDFDoc.h

#ifndef _PDF_DOC_H
#define _PDF_DOC_H

#include <stdio.h>
#include "XRef.h"
#include "Catalog.h"
#include "Page.h"

class StringExt;
class BaseStream;
class OutputDev;
class Links;
class LinkAction;
class LinkDest;
class Outline;
//-------------------------------------------------------------------------------------------------------------------------------
// PDFDoc
//-------------------------------------------------------------------------------------------------------------------------------

class PDFDoc 
{
public:

	PDFDoc(GlobalParams *pGlobalParams, CString wsFileName, StringExt *seOwnerPassword = NULL, StringExt *seUserPassword = NULL);
	PDFDoc(GlobalParams *pGlobalParams, wchar_t *sFileName, int nFileNameLen, StringExt *seOwnerPassword = NULL, StringExt *seUserPassword = NULL);
	PDFDoc(GlobalParams *pGlobalParams, BaseStream *pStream, StringExt *seOwnerPassword = NULL, StringExt *seUserPassword = NULL);
	~PDFDoc();

	// Íîðìàëüíî ëè îòêðûëñÿ PDF ôàéë?
	BOOL CheckValidation() 
	{ 
		return m_bValid; 
	}


	// Ïîëó÷àåì êîä îøèáêè, åñëè PDF ôàéë íå îòêðûëñÿ.
	int GetErrorCode() 
	{ 
		return m_nErrorCode; 
	}


	// Ñ÷èòûâàåì èìÿ ôàéëà.
	CString GetFileName() 
	{ 
		return m_wsFileName; 
	}


	// Ñ÷èòûâàåì òàáëèöó Xref.
	XRef *GetXRef() 
	{ 
		return m_pXref; 
	}


	// Ñ÷èòûâàåì îáúåêò Ñatalog.
	Catalog *GetCatalog() 
	{ 
		return m_pCatalog; 
	}


	// Ñ÷èòûâàåì ïîòîê.
	BaseStream *GetBaseStream() 
	{ 
		return m_pStream; 
	}


	// C÷èòûâàåì ïàðàìåòðû ñòðàíèöû.
	double GetPageMediaWidth (int nPageIndex)
    { 
		return m_pCatalog->GetPage(nPageIndex)->GetMediaWidth(); 
	}
	double GetPageMediaHeight(int nPageIndex)
    { 
		return m_pCatalog->GetPage(nPageIndex)->GetMediaHeight(); 
	}
	double GetPageCropWidth  (int nPageIndex)
    { 
		return m_pCatalog->GetPage(nPageIndex)->GetCropWidth(); 
	}
	double GetPageCropHeight (int nPageIndex)
    { 
		return m_pCatalog->GetPage(nPageIndex)->GetCropHeight(); 
	}
	int    GetPageRotate     (int nPageIndex)
    { 
		return m_pCatalog->GetPage(nPageIndex)->GetRotate(); 
	}


	// Ñ÷èòûâàåì êîëè÷åñòâî ñòðàíèö.
	int GetPagesCount() 
	{ 
		return m_pCatalog->GetPagesCount(); 
	}


	// Âîçâðàùàåì ñîäåðæèìîå ïîòîêà ìåòàäàííûõ îáúåêòà Catalog.
	StringExt *ReadMetadata() 
	{ 
		return m_pCatalog->ReadMetadata(); 
	}


	// Âîçâðàùàåì îáúåêò StructureTreeRoot.
	Object *GetStructTreeRoot() 
	{ 
		return m_pCatalog->GetStructTreeRoot(); 
	}


	// Âûâîäèì äàííóþ ñòðàíèöó íà óñòðîéñòâî pOut.
	void DisplayPage(OutputDev *pOut, int nPageIndex, double dHorDPI, double dVerDPI, int nRotate, BOOL bUseMediaBox, BOOL bCrop, BOOL bPrinting, BOOL (*pAbortCheckCbk)(void *pData) = NULL, void *pAbortCheckCbkData = NULL);
	// Âûâîäèì ñðàçó íåñêîëüêî ñòðàíèö.
	void DisplayPages(OutputDev *pOut, int nFirstPageIndex, int nLastPageIndex, double dHorDPI, double dVerDPI, int nRotate, BOOL bUseMediaBox, BOOL bCrop, BOOL bPrinting, BOOL (*pAbortCheckCbk)(void *pData) = NULL, void *pAbortCheckCbkData = NULL);
	// Âûâîäèì ÷àñòü ñòðàíèöû.
	void DisplayPageSlice(OutputDev *pOut, int nPageIndex, double dHorDPI, double dVerDPI, int nRotate, BOOL bUseMediaBox, BOOL bCrop, BOOL bPrinting, int nSliceX, int nSliceY, int nSliceW, int nSliceH, BOOL (*pAbortCheckCbk)(void *pData) = NULL, void *pAbortCheckCbkData = NULL);
	// Èùåì ñòðàíèöó ïî åå îáúåêòíûì íîìåðàì. Âîçâðàùàåì 0, åñëè ñòðàíèöà íå íàéäåíà.
	int FindPage(int nNum, int nGen) 
	{ 
		return m_pCatalog->FindPage( nNum, nGen ); 
	}


	// Âîçâðàùàåì Links äëÿ òåêóùåé ñòðàíèöû.
	Links *GetLinks(int nPageIndex);
	// Èùåì Destination ïî èìåíè. Âîçâðàùàåì Link destination èëè NULL, åñëè <seName> íå îáúåêò Destination.
	LinkDestination *FindDest(StringExt *seName)
	{ 
		return m_pCatalog->FindDest( seName ); 
	}


	// Îáðàáàòûâàåì Links äëÿ äàííîé ñòðàíèöû.
	void ProcessLinks(OutputDev *pOut, int nPageIndex);
	// Âîçâðàùàåì îáúåêò Îutline.
	Outline *GetOutline() 
	{
		return m_pOutline; 
	}
	// Çàøèôðîâàí ëè ôàéë?
	BOOL IsEncrypted() 
	{ 
		return m_pXref->CheckEncrypted(); 
	}

	// Ïðîâåðÿåì ðàçëè÷íûå îãðàíè÷åíèÿ.
	BOOL CheckPrint   (BOOL bIgnoreOwnerPassword = FALSE)
    { 
		return m_pXref->CheckPrint( bIgnoreOwnerPassword ); 
	}
	BOOL CheckChange  (BOOL bIgnoreOwnerPassword = FALSE)
    { 
		return m_pXref->CheckChange( bIgnoreOwnerPassword ); 
	}
	BOOL CheckCopy    (BOOL bIgnoreOwnerPassword = FALSE)
    { 
		return m_pXref->CheckCopy( bIgnoreOwnerPassword ); 
	}
	BOOL CheckAddNotes(BOOL bIgnoreOwnerPassword = FALSE)
    { 
		return m_pXref->CheckAddNotes( bIgnoreOwnerPassword ); 
	}

	// Äàííûé PDF ôàéë ÿâëÿåòñÿ ëèíåàðèçèðîâàííûì (ñì. Linearized PDF)
	BOOL IsLinearized();
	// Âîîçâðàùàåì îáúåê Info.
	Object *GetDocInfo(Object *pObject) 
	{ 
		return m_pXref->GetDocInfo( pObject ); 
	}
	Object *GetDocInfoCopy(Object *pObject) 
	{ 
		return m_pXref->GetDocInfoCopy( pObject ); 
	}

	// Âîçâðàùàåì âåðñèþ PDF ôàéëà.
	double GetPDFVersion() 
	{ 
		return m_dPDFVersion; 
	}

	// Ñîõðàíÿåì êîïèþ äàííîãî ôàéëà.
	BOOL SaveAs(CStringW wsName);



private:

	BOOL Setup(StringExt *seOwnerPassword, StringExt *seUserPassword);
	void CheckHeader();
	BOOL CheckEncryption(StringExt *seOwnerPassword, StringExt *seUserPassword);

private:

	CString     m_wsFileName;  // Èìÿ èñõîäíîãî ôàéëà.
	FILE       *m_pFile;       // Óêàçàòåëü íà ôàéëîâûé ïîòîê
	char       *m_pFileBuffer;
	HANDLE      m_hFile;
	HANDLE      m_hMapFile;
	BaseStream *m_pStream;     // Ïîòîê, â êîòîðûé ñ÷èòàí âåñü ôàéë
	double      m_dPDFVersion; // Âåðèñèÿ PDF ôàéëà (1.1 - 1.7)
	XRef       *m_pXref;       // Òàáëèöà Xref 
	Catalog    *m_pCatalog;    // Óêàçàòåëü íà îáúåêò Catalog
	Outline    *m_pOutline;    // Óêàçàòåëü íà Outline (ìåíþ)

	BOOL        m_bValid;      // Íîðìàëüíî ëè îòêðûëñÿ PDF ôàéë
	int         m_nErrorCode;  // Êîä îøèáêè

	GlobalParams *m_pGlobalParams;
};

#endif /* _PDF_DOC_H */