cmxifltr.h

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// $Id: cmxifltr.h 1282 2006-06-09 09:46:49Z alex $
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 */
// cmx import filter

#ifndef CMXIFLTR_H
#define CMXIFLTR_H

//#include "filters.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "cmxres.h"
//#include "paths.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "ccfile.h" - in camtypes.h [AUTOMATICALLY REMOVED]

#include "cmxistut.h"

class CMXImportFilterDataSet;
class CMXImportColourList;
class CMXImportRImage;
class CMXImportBitmap;
class Progress;
class SelOperation;

/********************************************************************************************

>   class CMXImportFilter : public VectorFilter

    Author:     Ben_Summers (Xara Group Ltd) <camelotdev@xara.com>
    Created:    05/08/96
    Purpose:    Import filter for CMX format (both 16 and 32 bit)

********************************************************************************************/

class CMXImportFilter : public VectorFilter
{
    CC_DECLARE_DYNAMIC(CMXImportFilter);
    friend class CMXImportRImage;
    friend class CMXImportBitmap;

public:
    CMXImportFilter();
    BOOL Init();
    
    INT32 HowCompatible(PathName& Filename, 
                    ADDR  HeaderStart, 
                    UINT32 HeaderSize,
                    UINT32 FileSize);

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

    BOOL DoExport(Operation*, CCLexFile*, PathName*, Document*, BOOL) {return FALSE;};

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

    // Function used by the gallery thumb nail code to check the file is the native/web format
    // and then get to the preview bitmap record and leave the file pointer sitting at the bitmap image
    static BOOL SkipToPreviewBitmap(CCLexFile * pFile);

protected:
    // data reading things
    BOOL ReadData(void *Out, char *Instructions);
    BOOL ReadPointList(Path **ppPath);
    CMXImportColourList *ReadColourList(void);
    BOOL LocateRootLevelRIFFSection(DWORD Section);
    void Seek(INT32 to) {pFile->seekIn(to + StartPosition);};
    INT32 Tell(void) {return pFile->tellIn() - StartPosition;};
    BOOL GotoSectionFromIndex(INT32 MasterIndexEntry, DWORD PredictedRIFFType, BOOL NonExistanceIsFormatError, BOOL *Found = NULL, INT32 *Size = NULL);

    // do stuff functions
    BOOL Stage1_ReadHeader(Spread *pSpread);
    BOOL Stage2_ReadMasterIndex(void);
    BOOL Stage3_ConvertDescriptionSections(void);
    BOOL Stage4_ConvertPage(void);
    BOOL Stage5_PlaceObjectsInTree(Spread *pSpread, SelOperation *pOp, ImportPosition *pPos);
    BOOL ProcessCommand(INT32 *ProgressThingy = NULL);

    // command handling functions -- call new ones Process_<name of instruction in CMX spec>
    BOOL Process_BeginPage(void);
    BOOL Process_EndPage(void);
    BOOL Process_BeginLayer(void);
    BOOL Process_EndLayer(void);
    BOOL Process_BeginGroup(void);
    BOOL Process_EndGroup(void);
    BOOL Process_EndSection(void);
    BOOL Process_PolyCurve(void);
    BOOL Process_PolyCurveContainer(cmxiPolyCurve &pc);
    BOOL Process_Rectangle ( void );                    // Graeme (1-2-00)
    BOOL Process_AddGlobalTransform(void);
    BOOL Process_SetGlobalTransform(void);
    BOOL Process_RestoreLastGlobalTransform(void);
    BOOL Process_DrawImage(void);
    BOOL Process_DrawImage_Cropped(cmxiDrawImage &db);
    BOOL Process_AddClippingRegion(void);
    BOOL Process_RemoveLastClippingRegion(void);
    BOOL Process_ClearClipping(void);
    BOOL Process_BeginTextStream(void);
    BOOL Process_TextFrame(void);
    BOOL Process_Characters(void);
    BOOL Process_CharInfo(void);
    BOOL Process_BeginParagraph(void);
    BOOL Process_EndParagraph(void);
    BOOL Process_EndTextStream(void);


    // object processing things
    BOOL TransformNode(Node *pNode);
    BOOL SetAttributesForNode(Node *pNode, void *pAttr, BOOL DeleteStuff = TRUE);
    BOOL ClipNode(Node **pNode);
    BOOL ApplyAttributesToNode(Node *pNode);

    // attribute stuff
    BOOL SetNoFill(Node *pNode);
    BOOL SetNoStroke(Node *pNode);
    BOOL SetAttributesFountain(Node *pNode, cmxiFillSpec *Fill);
    BOOL SetAttributesLinearGrad(Node *pNode, cmxiFillSpec *GFill, DocRect &BBox, DocColour *StartColour, DocColour *EndColour);
    BOOL SetAttributesConicalGrad(Node *pNode, cmxiFillSpec *GFill, DocRect &BBox, DocColour *StartColour, DocColour *EndColour);
    BOOL SetAttributesRadialGrad(Node *pNode, cmxiFillSpec *GFill, DocRect &BBox, DocColour *StartColour, DocColour *EndColour, BOOL IsSquare = FALSE);
    BOOL SetAttributesBitmapFill(Node *pNode, INT32 VectorReference, cmxiTiling *Tile);
    BOOL SetAttributesTwoColourBitmapFill(Node *pNode, cmxiFillSpec *Fill);
    BOOL GetCorelBBox(NodeRenderableBounded *pNode, DocRect *BBox);
    BOOL GetTilingPoints(DocRect *BBox, cmxiTiling *Tile, DocCoord *StartPoint, DocCoord *EndPoint, DocCoord *EndPoint2);
    void SetNonTextAttributeIgnore();
    void SetNonTextAttributeNotIgnore();
    void SetTextAttributeIgnore();
    void SetTextAttributeNotIgnore();


    // misc stuff
    void CleanUpAfterImport(void);

    // approximation things
    void AttributeApproximated(void);
    void ClippingApproximated(void);
    void ObjectApproximated(void);

    // referency type stuff
    BOOL ConvertColours(void);
    DocColour *GetColourFromReference(INT32 Ref);
    BOOL AddColoursToDocument(void);
    BOOL ConvertPens(void);
    BOOL ConvertOutlines(void);
    BOOL ConvertLineStyles(void);
    BOOL ConvertDotDashes(void);
    BOOL ConvertArrowShapes(void);
    BOOL ConvertArrowheads(void);
    BOOL ReadEmbeddedFileIndex(void);
    BOOL ReadProcedureIndex(void);
    BOOL ReadBitmapIndex(void);
    BOOL ConvertFonts(void);
    BOOL ReadFontIndex(void);

    // transform and clipping things
public:
    Matrix *GetBaseMatrix(void);
    Matrix *GetCurrentMatrix(void);
    void SetMatrix(Matrix *pNewMatrix);
    void SetClippingPath(Path *pClipper = NULL);

private:
    CCLexFile *pFile;
    BOOL Is32Bit;
    BOOL CorelDraw7;
    INT32 StartPosition;        // the offset of the start of the CMX file

    // all the data we're using
    CMXImportFilterDataSet *Data;

#ifdef _DEBUG
public:
    static void FormatErrorBreakingFunction(void);
#endif // _DEBUG
};

// use to mark an error in the CMX file we're importing
#ifdef _DEBUG
#define CMXFORMATERROR(ret)     {Error::SetError(IDT_CMXFILTER_CMXERROR, 0); \
                                CMXImportFilter::FormatErrorBreakingFunction(); return ret;}
#else
#define CMXFORMATERROR(ret)     {Error::SetError(IDT_CMXFILTER_CMXERROR, 0); return ret;}
#endif



#endif // CMXIFLTR_H

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