htmlfltr.h

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// $Id: htmlfltr.h 1282 2006-06-09 09:46:49Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
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----------------------------------

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=================================XARAHEADEREND============================
 */


#ifndef INC_HTMLFILTERS
#define INC_HTMLFILTERS


// include
#include "textfltr.h"
//#include "pathname.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "selop.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "ccfile.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "htmllist.h"


/********************************************************************************************
>   class HTMLFilter : public BaseTextFilter

    Author:     Olivier_Gascoin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/03/97
    Purpose:    A filter for html file, recognise only tags containing bitmaps
    SeeAlso:    BaseTextFilter
********************************************************************************************/

class HTMLFilter : public BaseTextFilter
{
    CC_DECLARE_DYNAMIC(HTMLFilter)

public:
    HTMLFilter();
    ~HTMLFilter();

    INT32 Init();
    // Initialise some member variables
    //BOOL Init1();
    // free memory used by member variables
    //BOOL DeInit1();

    // Function called before HowCompatible so that filters have a chance to do
    // something, if required. Baseclass version is present but does nothing.
    // Therefore, only needs to be overridden by a filter or set of filters which requires it.
    virtual BOOL PreHowCompatible();

    // HowCompatible() returns value in range 0 to 10:
    //   0 => "Definitely Not"
    //  10 => "Yes Sir, that's my file format"
    virtual INT32 HowCompatible(    PathName& Filename, 
                                ADDR  HeaderStart, 
                                UINT32 HeaderSize,
                                UINT32 FileSize );

    virtual BOOL DoImport(SelOperation*, CCLexFile*, Document*, 
                          BOOL AutoChosen = FALSE, ImportPosition *Pos = NULL,
                          KernelBitmap** ppImportedBitmap = NULL,
                          DocCoord* pPosTranslate = NULL, String_256* URL=NULL);

    //BOOL ScanListAndImport(HTMLFileList* HTMLList, CCLexFile* pFile, SelOperation *Op, Document *DestDoc);
    BOOL ScanListAndImport(HTMLFileList* HTMLList, String_256* Address, Document *DestDoc, SelOperation *Op, PathName pthImportFile);
    static BOOL DoImportBitmap(HTMLTAG_TYPE TagId, SelOperation *Op, Document *DestDoc, 
                                PathName Path, INT32 FileNum, INT32 FileNumber, 
                                DocCoord& PosTranslate, BOOL IsCentre, String_256* NewName);

    static BOOL ImportBitmap(SelOperation *Op, PathName &Path,
                            KernelBitmap** ppImportedBitmap,
                            DocCoord* pPosTranslate, INT32 FileNum, 
                            INT32 FileNumber, String_256* NewName);

    BOOL ParseHTMLFile(CCLexFile* pFile, HTMLFileList* HTMLList);
    BOOL GetTag(TCHAR*, TCHAR*, const TCHAR* TokenBuffer);
    BOOL GetAttribute(const TCHAR* AttrName, const TCHAR*, TCHAR*);
    TCHAR* SearchStr(const char* A, const char* B);

    virtual BOOL IsDefaultDocRequired(const TCHAR* pcszPathName) { return TRUE; }

    // unused
    virtual BOOL DoExport(Operation*, CCLexFile*, PathName*, Document*, BOOL) { return TRUE; }

public:
    //This variable is set to TRUE when we import a bitmap as part of an HTML document
    static BOOL ImportingHTML;
    
protected:
    //Graham 5/6/97: Calculates the Nth position at which to import a bitmap
    DocCoord GetImportPosition(Document* pdocTarget, INT32 iPosNum);

protected:
    String_256 m_WarningsString;
};


#endif  //INC_HTMLFILTERS

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