cmxexdc.h

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// $Id: cmxexdc.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.
       Copyright on certain contributions may be held in joint with their
              respective authors. See AUTHORS file for details.

LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

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-----------------

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=================================XARAHEADEREND============================
 */
// CMX export device context

#ifndef __CMXEXDC_H
#define __CMXEXDC_H

#include "kerneldc.h"
//#include "list.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "cmxform.h"
//#include "pathtype.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "docrect.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "gradtype.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "attr.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "arrows.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "bitmap.h" - in camtypes.h [AUTOMATICALLY REMOVED]

class Filter;
class CCDiskFile;
class Rect;
class CMXRenderRegion;
class DocColour;
class FillGeometryAttribute;
class KernelBitmap;
class CMXReferBitmap;
class CMXReferListItem;
class CMXReferPage;
class CMXExportDC;
class Operation;
class Document;
class PathName;

// how many overlapping lenses we allow
#define CMX_MAX_OVERLAP_LENSES      3

// the size of the cache for future values
#define CMXFUTUREVALUECACHESIZE     128

// macro for helping to set up future values
#define FUTURE_BACKLOC(obj, mem) (0-(sizeof(*obj) - ( ((INT32)(&((obj)->mem))) - ((INT32)(obj)) )))

// base class for information written, but not know yet
class CMXFutureUpdater : public CCObject
{
    CC_DECLARE_DYNAMIC(CMXFutureUpdater);

public:
    CMXFutureUpdater();
    ~CMXFutureUpdater();
    BOOL Init(CMXExportDC *pDC, INT32 RelativePos, UINT32 DataSize);
    virtual BOOL Write(CMXExportDC *pDC) = 0;
protected:
    BOOL WriteValue(CMXExportDC *pDC, INT32 Value);
    virtual void Reset(void) {};
private:
    INT32 AbsPosition;
    UINT32 DataSize;
};

// thing for writing lengths
class CMXFutureLength : public CMXFutureUpdater
{
    CC_DECLARE_DYNAMIC(CMXFutureLength);

public:
    CMXFutureLength();
    BOOL SetLengthStartPos(CMXExportDC *pDC, INT32 RelativePos);
    BOOL Write(CMXExportDC *pDC);
protected:
    void Reset(void);
private:
    INT32 StartPos;
};

// thing for writing numbers
class CMXFutureNumber : public CMXFutureUpdater
{
    CC_DECLARE_DYNAMIC(CMXFutureNumber);

public:
    BOOL Write(CMXExportDC *pDC);

    INT32 operator=(INT32 eq)   {return Number=eq;};
    INT32 operator++()      {return ++Number;};
    INT32 operator++(INT32) {return Number++;};
    INT32 operator--()      {return --Number;};
    INT32 operator--(INT32) {return Number--;};
    operator INT32()            {return Number;};
    
private:
    INT32 Number;
};

// thing for writing indexes (offsets to things later on in the file)
class CMXFutureIndex : public CMXFutureUpdater
{
    CC_DECLARE_DYNAMIC(CMXFutureIndex);

public:
    BOOL Write(CMXExportDC *pDC);
};

#define cmxINDEX_NONE           0
#define cmxINDEX_ARROW          1
#define cmxINDEX_BITMAP         2
#define cmxINDEX_EMBEDFILE      3
#define cmxINDEX_LAYER          4
#define cmxINDEX_PAGE           5
#define cmxINDEX_PROCEDURE      6
#define cmxINDEX_MASTERLAYER    7
#define cmxINDEX_MASTERINDEX    8

#define cmxDESC_NONE            0
#define cmxDESC_ARROW           1
#define cmxDESC_ARROWHEADS      2
#define cmxDESC_DOTDASH         3
#define cmxDESC_FONT            4
#define cmxDESC_IMAGE           5
#define cmxDESC_OUTLINE         6
#define cmxDESC_LINESTYLE       7
#define cmxDESC_PEN             8
#define cmxDESC_LENS            9
#define cmxDESC_SCREEN          10
#define cmxDESC_COLOUR          11

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

>   class CMXExportDC : public ExportDX

    Author:     Ben_Summers (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/6/96
    Purpose:    Export device context for CMX files.
    SeeAlso:    ExportDC

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

class CMXExportDC : public ExportDC
{
public:
    CMXExportDC(Filter *);
    BOOL Init(CCLexFile*, CMXRenderRegion *pReg, BOOL bThirtyTwoBit, BOOL ClipboardExport);

    // data definitions local to this class
    typedef enum {
        CMXSECTION_NONE,        // not proccessing one
        CMXSECTION_HEADER,
        CMXSECTION_PAGE,
        CMXSECTION_REFLIST,
        CMXSECTION_INDEX,
        CMXSECTION_ARROW,
        CMXSECTION_ARROWHEADS,
        CMXSECTION_COLOUR,
        CMXSECTION_DOTDASH,
        CMXSECTION_FONT,
        CMXSECTION_IMAGE,
        CMXSECTION_OUTLINE,
        CMXSECTION_LINESTYLE,
        CMXSECTION_PEN,
        CMXSECTION_LENS,
        CMXSECTION_SCREEN,
        CMXSECTION_TRAILER,
        CMXSECTION_IMAGINFO,
        CMXSECTION_IMAGDATA,
        CMXSECTION_PROCBITFILL,
        CMXSECTION_PREVIEWBITMAP
    } CMXSectionType;

    // structure for caching future numbers
    typedef struct {
        INT32 Location;
        INT32 Data;
        UINT32 DataSize;
    } CMXFutureDataCacheEntry;
    
    // Functions to do the actual output to the CMX file.
    BOOL StartSection(CMXSectionType Type);
    BOOL EndSection(void);
    BOOL StartRIFFList(INT32 Type);
    BOOL EndRIFFList(void);
    BOOL CreateHeader(DocRect *pFileBBox);
    BOOL PolishOffThatFile(void);
    BOOL WriteNumber(INT32 Position, UINT32 DataSize, INT32 Value);
    BOOL WriteBBox(DocRect *BBox, BOOL Transform = TRUE);
    BOOL WriteString(StringBase *Str);
    void CleanUp(void);
    BOOL WriteReferenceList(void);
    BOOL WriteData(void *data, INT32 Size) {ExportFile->write(data, Size); return TRUE;};
    void WriteByte(BYTE Thing) {ExportFile->put(Thing);};   // will exception not return false
    BOOL WriteIndex(void);
    BOOL WriteAnIndex(INT32 Which);
    BOOL WriteADesc(INT32 Which);
    BOOL WriteDescriptionSections(void);
    BOOL WriteMatrix(Matrix *pMatrix = NULL);
    INT32 GetGroupCount(void) {return PageGroupCount;};
    static void CalcCorelBBox(DocCoord *Coords, INT32 NumCoords, DocRect *Result);
    void WriteAngle(double theta);
    BOOL WriteReferSections(void);
    void WriteSizeInFile(WORD Size) {if(ThirtyTwoBit) ExportFile->write(&Size, sizeof(Size));};
    BOOL WriteCamComment(void);
    BOOL WritePreviewBitmap(void);

    // access functions
    void SetTransMatrix(Matrix *pM)
    {
        pMatrix = pM;
        FIXED16 sf;
        pMatrix->Decompose(&sf);
        ScaleFactor = sf.MakeDouble();
    };

    Matrix *GetTransMatrix(void) {return pMatrix;};
    INT32 GetFilePosition();
    BOOL IsThirtyTwoBit() {return ThirtyTwoBit;};
    INT32 GetFirstInstrFilePosition(void) {return FirstInstrFilePosition;};
    INT32 GetCurrentInstrFilePosition(void) {return CurrentInstrFilePosition;};
    INT32 GetRefListOffset(void) {return RefListOffset;};
    INT32 GetInstructionTally(void) {return Tally;};
    WORD GetLayerNumber(void) {return LayerNumber;};
    CMXRenderRegion *GetRenderRegion(void) {return pRenderRegion;};
    double GetScaleFactor(void) {return ScaleFactor;};
    void SetInfo(Operation* op, PathName* ptPath, Document* ptDoc) {pOp = op, pPath = ptPath, TheDocument = ptDoc;};

    // functions to handle structural information
    BOOL StartPage(DocRect *BBox, BOOL IsProcedure = FALSE);
    BOOL EndPage(void);
    BOOL StartLayer(String_256 &Name);
    BOOL EndLayer(void);
    BOOL StartGroup(DocRect *BBox, BOOL TransformBBox = TRUE);
    BOOL EndGroup(void);
    void SetCMXFlag(INT32 flag);

    // functions to handle small structure information
    BOOL WriteCommand(UINT32 Tag, void *Data = 0, UINT32 Size = 0);
    BOOL StartCommand(UINT32 Tag);
    BOOL EndCommand(void);
    BOOL WriteTag(INT32 Tag, void *Data = 0, UINT32 Size = 0)
        {return DoWriteTag(Tag, Data, Size, FALSE);};
    BOOL StartTag(INT32 Tag);
    BOOL EndTag(void);
    BOOL StartNestedTag(INT32 Tag);
    BOOL EndNestedTag(void);
    BOOL WriteNestedTag(INT32 Tag, void *Data = 0, UINT32 Size = 0)
        {return DoWriteTag(Tag, Data, Size, TRUE);};
    // the following fn is necessary as some end tags require the full tag
    // but some don't. 
    BOOL WriteMinEndTag(void) {if(ThirtyTwoBit) WriteByte(cmxTAG_EndTag); return TRUE;};

    // attributes
    BOOL WriteAttributes(CMXRenderRegion *pReg, INT32 Tag, DocCoord *Coords, INT32 NumCoords, BOOL ForceNoFill = FALSE);
    BOOL WriteBlankAttributes(INT32 Tag);
    BOOL WriteAttrCheckLens(CMXRenderRegion *pReg, INT32 Tag, DocCoord *Coords, INT32 NumCoords, BOOL *WasLens);
    BOOL WriteAttrCheckIgnoreLens(CMXRenderRegion *pReg, DocCoord *Coords, INT32 NumCoords);
    BOOL WriteOutlineSpec(CMXRenderRegion *pReg);
    BOOL WriteFillSpec(CMXRenderRegion *pReg, DocCoord *Coords, INT32 NumCoords, BOOL NoFill);
    BOOL WriteFillType(WORD FillID);
    BOOL WriteFillSpecFlat(CMXRenderRegion *pReg, FillGeometryAttribute *pAttr);
    BOOL WriteFillSpecGrad(CMXRenderRegion *pReg, FillGeometryAttribute *pAttr, DocCoord *Coords, INT32 NumCoords);
    BOOL WriteFillSpecBitmap(CMXRenderRegion *pReg, FillGeometryAttribute *pAttr, DocCoord *Coords, INT32 NumCoords);

    // references
    WORD GetColourReference(DocColour *pTheLovelyColour);
    WORD GetBitmapReference(KernelBitmap *pTheLovelyBitmap, DocColour *pStartCol, DocColour *pEndCol, EFFECTTYPE Effect, CMXReferBitmap **ppRB = NULL);
    WORD GetProcedureReference(CMXReferListItem *pProc);
    WORD GetArrowReference(ArrowRec *pArrow);

    // thingy
    typedef enum {
        CMXBITMAPCOLOURSOURCE_NONE,
        CMXBITMAPCOLOURSOURCE_LINEANDFILL,
        CMXBITMAPCOLOURSOURCE_FILLGEOMETRY
    } CMXBitmapColourSource;

    // objects
    BOOL WritePath ( DocCoord   *Coords,
                     PathVerb   *Verbs,
                     INT32      NumCoords,
                     BOOL       Filled);

    BOOL WriteBitmap ( KernelBitmap             *pBitmap,
                       DocCoord                 *pParallelogram,
                       CMXBitmapColourSource    ColSource = CMXBITMAPCOLOURSOURCE_NONE,
                       BOOL                     TransformParallelogram = TRUE,
                       WORD                     BitmapReference = 0 );

    static double Round ( double ToRound );

protected:
    DoWriteTag(INT32 Tag, void *Data = 0, UINT32 Size = 0, BOOL Nested = FALSE);
    BOOL WriteFutureDataCache();

private:        // all the lovely data we'll need
    CMXRenderRegion *pRenderRegion;         // pointer to the render region -- we need it occasionally

    CMXSectionType CurrentSection;          // the type of the section we're currently thinking about
    CMXFutureLength SectionLengthFuture;    // the length of the section

    BOOL ThirtyTwoBit;                      // the bitness of the file we're writing

    CMXFutureLength FileLengthFuture;       // length of file
    CMXFutureNumber Tally;                  // tally of commands in the file
    CMXFutureIndex PageEndIndexFuture;      // for index of end page command
    CMXFutureNumber PageInstructionCount;   // for instructions in page
    CMXFutureNumber PageGroupCount;         // for the number of groups in the page
    CMXFutureNumber PageFlags;              // for the page flags
    CMXFutureNumber LayerInstructionCount;  // for layer...
    CMXFutureNumber LayerFlags;             // for layer flags
    CMXFutureLength CommandLengthFuture;    // for the length of the current command
    CMXFutureIndex IndexSectionFuture;      // for the offset to the index section
    CMXFutureIndex TrailerIndexFuture;      // location of the index section
    CMXFutureIndex ThumbnailIndexFuture;    // location of the index section
    CMXFutureLength TagLengthFuture;        // for the size of each tag
    CMXFutureLength RIFFListLengthFuture;   // for size of riff lists

    BOOL DoingCommand;                      // whether we're currently doing a command or not
    BOOL DoingPage;                         // whether we're in a page or not
    BOOL DoingLayer;                        // whether we're in a layer or not
    BOOL DoingTag;                          // whether we're doing a tag
    WORD LayerNumber;                       // number of layer we're doing
    BOOL DoingRIFFList;                     // doing a RIFF list
    BOOL PageIsProc;                        // page is really a procedure

    INT32 NestedTagLevel;                       // level of nested tags
    List NestedTagList;
    List ReferList;                         // List of things to refer to
    CMXReferPage *PageRefer;                // address of the current page reference
    INT32 RefListOffset;                        // offset of reflist chunk in file
    List GroupList;                         // list of groups -- stack type thing
    Matrix *pMatrix;                        // matrix to transform all exported things by
    INT32 FirstInstrFilePosition;           // position of the first instruction in the file
    INT32 CurrentInstrFilePosition;         // the position of the current instruction in the file

    INT32 NumberOfEntriesUsedInCache;           // number of entries used in the cache
    CMXFutureDataCacheEntry FutureDataCache[CMXFUTUREVALUECACHESIZE];
                                            // the cache for writing number
    double ScaleFactor;                     // scale factor between cam and CMX coords

    // stuff to handle not putting out too many overlapped lens objects
    List LensBBoxes;                        // a list of lens bounding boxes to avoid overlapping them too much
    BOOL OverlappedLensesHaveBeenIgnored;   // whether we ignored something
    BOOL AreIgnoreingOverlappedLenses;      // a flag to tell whether the user said we could ignore them
    BOOL HaveAskedUserAboutLenses;          // whether we've asked the user about stuff

    Document *TheDocument;
    Operation *pOp;
    PathName *pPath;
};


// class for putting things into reference lists and other stuff
class CMXReferListItem : public ListItem
{
    CC_DECLARE_DYNAMIC(CMXReferListItem);

public:
    CMXReferListItem(CMXExportDC *pDC) {};

    virtual BOOL IsInReferenceList(void) {return FALSE;};
    virtual BOOL WriteInReferenceList(CMXExportDC *pDC) {return TRUE;};

    virtual INT32 IsInWhichIndex(void) {return cmxINDEX_NONE;};
    virtual BOOL WriteInIndex(CMXExportDC *pDC) {return TRUE;};
    virtual INT32 IndexEntrySize(CMXExportDC *pDC) {return 0;};     // size of entry which goes in index

    virtual INT32 IsInWhichDesc(void) {return cmxDESC_NONE;};
    virtual BOOL WriteInDesc(CMXExportDC *pDC) {return TRUE;};

    virtual BOOL IsASection(void) {return FALSE;};
    virtual BOOL WriteSection(CMXExportDC *pDC) {return TRUE;};

    virtual BOOL IsAProcedure(void) {return FALSE;};
};

// a version of the refer list item which gets an offset of where it is in the exported file
class CMXReferListItemOffset : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferListItemOffset);

public:
    CMXReferListItemOffset(CMXExportDC *pDC);

protected:
    INT32 Offset;
};

// list item for layers
class CMXReferLayer : public CMXReferListItemOffset
{
    CC_DECLARE_DYNAMIC(CMXReferLayer);

public:
    CMXReferLayer(CMXExportDC *pDC) : CMXReferListItemOffset(pDC) {};

    void SetLayerDetails(WORD Number, String_256 *tName);

    BOOL IsInReferenceList(void) {return TRUE;};
    BOOL WriteInReferenceList(CMXExportDC *pDC);

    BOOL IsInWhichIndex(void) {return cmxINDEX_LAYER;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC);

protected:
    WORD LayerNumber;
    String_256 Name;
};

// list item for the default screen attributes
class CMXReferDefaultScreen : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferDefaultScreen);

public:
    CMXReferDefaultScreen(CMXExportDC *pDC) : CMXReferListItem(pDC) {};

    INT32 IsInWhichDesc(void) {return cmxDESC_SCREEN;};
    BOOL WriteInDesc(CMXExportDC *pDC);
};

// list item for dot-dash patterns
class CMXReferDotDash : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferDotDash);

public:
    CMXReferDotDash(CMXExportDC *pDC) : CMXReferListItem(pDC) {pDash = 0;};

    void Set(DashRec *ptDash) {pDash = ptDash;};

    INT32 IsInWhichDesc(void) {return cmxDESC_DOTDASH;};
    BOOL WriteInDesc(CMXExportDC *pDC);

    virtual BOOL AreYouThisDotDash(DashRec *ptDash) {return ((*pDash) == (*ptDash))?TRUE:FALSE;};

protected:
    DashRec *pDash;
};

// list item for default dot-dash attr
class CMXReferDefaultDotDash : public CMXReferDotDash
{
    CC_DECLARE_DYNAMIC(CMXReferDefaultDotDash);

public:
    CMXReferDefaultDotDash(CMXExportDC *pDC) : CMXReferDotDash(pDC) {};

    INT32 IsInWhichDesc(void) {return cmxDESC_DOTDASH;};
    BOOL WriteInDesc(CMXExportDC *pDC);

    BOOL AreYouThisDotDash(DashRec *ptDash) {return (ptDash->Elements == 0)?TRUE:FALSE;};
};

#define CMXDEFAULTDOTDASHREF    1

// list item for colours
class CMXReferColour : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferColour);

public:
    CMXReferColour(CMXExportDC *pDC) : CMXReferListItem(pDC) {};

    BOOL SetColour(DocColour *pCol) {Colour = *pCol; return TRUE;};
    BOOL AreYouThisColour(DocColour *pCompareColour)
        {return ((*pCompareColour) == (Colour))?TRUE:FALSE;};

    INT32 IsInWhichDesc(void) {return cmxDESC_COLOUR;};
    BOOL WriteInDesc(CMXExportDC *pDC);

protected:
    DocColour Colour;
};

// list item for pens
class CMXReferPen : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferPen);

public:
    CMXReferPen(CMXExportDC *pDC) : CMXReferListItem(pDC) {Width = -1;};

    BOOL SetWidth(MILLIPOINT TWidth) {ERROR2IF(Width != -1, FALSE, "width already set");
                                        Width = TWidth; return TRUE;};
    BOOL AreYouThisWidth(MILLIPOINT CompareWidth) {return (CompareWidth == Width)?TRUE:FALSE;};

    INT32 IsInWhichDesc(void) {return cmxDESC_PEN;};
    BOOL WriteInDesc(CMXExportDC *pDC);

protected:
    MILLIPOINT Width;
};

// list item for line styles
class CMXReferLineStyle : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferLineStyle);

public:
    CMXReferLineStyle(CMXExportDC *pDC) : CMXReferListItem(pDC) {};

    void SetLineStyle(cmxLineStyle *pLineStyle) {LineStyle = *pLineStyle;};
    BOOL AreYouThisStyle(cmxLineStyle *pLineStyle);

    INT32 IsInWhichDesc(void) {return cmxDESC_LINESTYLE;};
    BOOL WriteInDesc(CMXExportDC *pDC);

protected:
    cmxLineStyle LineStyle;
};

// list item for outlines
class CMXReferOutline : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferOutline);

public:
    CMXReferOutline(CMXExportDC *pDC) : CMXReferListItem(pDC) {};

    void SetOutline(cmxOutline *pOutline) {Outline = *pOutline;};
    BOOL AreYouThisOutline(cmxOutline *pOutline);

    INT32 IsInWhichDesc(void) {return cmxDESC_OUTLINE;};
    BOOL WriteInDesc(CMXExportDC *pDC);

protected:
    cmxOutline Outline;
};

// list item for arrowheads
class CMXReferArrowheads : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferArrowheads);

public:
    CMXReferArrowheads(CMXExportDC *pDC) : CMXReferListItem(pDC) {};

    void SetArrowheads(WORD StartArrow, WORD EndArrow) {Start = StartArrow; End = EndArrow;};
    BOOL AreYouThisArrowheads(WORD StartArrow, WORD EndArrow) {return (Start == StartArrow) && (End == EndArrow);};

    INT32 IsInWhichDesc(void) {return cmxDESC_ARROWHEADS;};
    BOOL WriteInDesc(CMXExportDC *pDC);

protected:
    WORD Start, End;
};

// list item for the actual arrow description
class CMXReferArrow : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferArrow);

public:
    CMXReferArrow(CMXExportDC *pDC) : CMXReferListItem(pDC) {pArrow = 0;};
    
    void Set(ArrowRec *ptArrow) {pArrow = ptArrow;};

    INT32 IsInWhichDesc(void) {return cmxDESC_ARROW;};
    BOOL WriteInDesc(CMXExportDC *pDC);

    BOOL AreYouThisArrow(ArrowRec *ptArrow)
        {return ((ptArrow->ArrowID == pArrow->ArrowID) || (ptArrow == pArrow))?TRUE:FALSE;};

    INT32 IsInWhichIndex(void) {return cmxINDEX_ARROW;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC) {return sizeof(cmxArrowIndexEntry);};

protected:
    INT32 ArrowFilePosition;
    ArrowRec *pArrow;
};

// list item for lenses
class CMXReferLens : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferLens);

public:
    CMXReferLens(CMXExportDC *pDC) : CMXReferListItem(pDC) {};

    BOOL Set(CMXExportDC *pDC, DocRect *tBBox);

    BOOL IsInReferenceList(void) {return TRUE;};
    BOOL WriteInReferenceList(CMXExportDC *pDC);

    BOOL IsASection(void) {return TRUE;};
    BOOL WriteSection(CMXExportDC *pDC);

    BOOL IsAProcedure(void) {return TRUE;};

    INT32 IsInWhichIndex(void) {return cmxINDEX_PROCEDURE;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC) {return sizeof(cmxProcIndexEntry)+(pDC->IsThirtyTwoBit()?sizeof(WORD):0);};      // size of entry which goes in index

protected:
    INT32 CommandFilePosition;  // position of the layer instruction
    DocRect BBox;
    INT32 LayerNumber;
    INT32 LensDescFilePosition;
};

// list item for pages
class CMXReferPage : public CMXReferListItemOffset
{
    CC_DECLARE_DYNAMIC(CMXReferPage);

public:
    CMXReferPage(CMXExportDC *pDC) : CMXReferListItemOffset(pDC) {};

    void SetLayerTableOffset(INT32 off) {LayerTableOffset = off;};
    void SetRefListOffset(INT32 off) {RefListOffset = off;};

    BOOL IsInWhichIndex(void) {return cmxINDEX_PAGE;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC) {return sizeof(cmxPageIndexEntry)+(pDC->IsThirtyTwoBit()?sizeof(WORD):0);};

protected:
    INT32 LayerTableOffset;
    INT32 RefListOffset;
};

// list item for indexes
class CMXReferMasterIndex : public CMXReferListItemOffset
{
    CC_DECLARE_DYNAMIC(CMXReferMasterIndex);

public:
    CMXReferMasterIndex(CMXExportDC *pDC) : CMXReferListItemOffset(pDC) {};

    void SetType(WORD tType) {Type = tType;};

    BOOL IsInWhichIndex(void) {return cmxINDEX_MASTERINDEX;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC) {return sizeof(cmxMasterIndexEntry);};

protected:
    WORD Type;
};


// list item for master layer index
class CMXReferMasterLayer : public CMXReferListItemOffset
{
    CC_DECLARE_DYNAMIC(CMXReferMasterLayer);

public:
    CMXReferMasterLayer(CMXExportDC *pDC) : CMXReferListItemOffset(pDC) {};

    BOOL IsInWhichIndex(void) {return cmxINDEX_MASTERLAYER;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC) {return (pDC->IsThirtyTwoBit())?sizeof(cmxMasterLayerEntry32):sizeof(cmxMasterLayerEntry16);};
};


// list item for bitmaps
class CMXReferBitmap : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferBitmap);

public:
    CMXReferBitmap(CMXExportDC *pDC) : CMXReferListItem(pDC)
        {Effect = EFFECT_RGB; Contone = FALSE;};

    void Set(KernelBitmap *pBitmap, DocColour *pStartCol, DocColour *pEndCol, EFFECTTYPE tEffect)
        {if(pStartCol != 0 && pEndCol != 0)
            {StartColour = *pStartCol; EndColour = *pEndCol; Contone = TRUE;}
            Effect = tEffect; Ref.Attach(pBitmap, NULL);};

    BOOL IsInWhichIndex(void) {return cmxINDEX_EMBEDFILE;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC) {return sizeof(cmxEmbedFileIndexEntry)+(pDC->IsThirtyTwoBit()?sizeof(WORD):0);};

    BOOL IsASection(void) {return TRUE;};
    BOOL WriteSection(CMXExportDC *pDC);

    BOOL AreYouThisBitmap(KernelBitmap *pBitmap, DocColour *pStartCol, DocColour *pEndCol, EFFECTTYPE tEffect)
        {return ((pBitmap == Ref.GetBitmap())
            && ( (!Contone && (pStartCol == NULL)) || ((pStartCol != NULL) && ((*pStartCol) == StartColour)))
            && ( (!Contone && (pEndCol == NULL  )) || ((pEndCol != NULL  ) && ((*pEndCol)   == EndColour  )))
            && (tEffect == Effect))
            ?TRUE:FALSE;};

    KernelBitmap *GetBitmap(void) {return Ref.GetBitmap();};

protected:
    INT32 BitmapFileOffset;
    KernelBitmapRef Ref;
    DocColour StartColour;
    DocColour EndColour;
    EFFECTTYPE Effect;
    BOOL Contone;
};

#define cmxBITMAPFILLTILESIZE_X     (1024*24)
#define cmxBITMAPFILLTILESIZE_Y     (1024*24)

class CMXReferBitmapFill : public CMXReferListItem
{
    CC_DECLARE_DYNAMIC(CMXReferBitmapFill);

public:
    CMXReferBitmapFill(CMXExportDC *pDC) : CMXReferListItem(pDC) {};

    void Set(WORD Ref) {BitmapReference = Ref;};

    BOOL IsASection(void) {return TRUE;};
    BOOL WriteSection(CMXExportDC *pDC);

    BOOL IsAProcedure(void) {return TRUE;};

    INT32 IsInWhichIndex(void) {return cmxINDEX_PROCEDURE;};
    BOOL WriteInIndex(CMXExportDC *pDC);
    INT32 IndexEntrySize(CMXExportDC *pDC) {return sizeof(cmxProcIndexEntry)+(pDC->IsThirtyTwoBit()?sizeof(WORD):0);};      // size of entry which goes in index

protected:
    WORD BitmapReference;
    INT32 ProcedureFilePosition;
};

// group record class
class CMXGroupRecord : public ListItem
{
    CC_DECLARE_DYNAMIC(CMXGroupRecord);

public:
    CMXGroupRecord(CMXExportDC *pDC);
    BOOL Write(CMXExportDC *pDC);

protected:
    INT32 Offset;
    INT32 TallyAtStart;
    INT32 GroupCountAtStart;
};


// nested tag class
class CMXNestedTagRecord : public ListItem
{
    CC_DECLARE_DYNAMIC(CMXNestedTagRecord);

public:
    CMXFutureLength LengthFuture;
};

class CMXLensBBox : public ListItem
{
    CC_DECLARE_DYNAMIC(CMXLensBBox);

public:
    CMXLensBBox(DocRect *bbox) {BBox = *bbox;};

    BOOL DoesIntersect(DocRect *pBBox) {return BBox.IsIntersectedWith(*pBBox);};

private:
    DocRect BBox;
};

#endif // __ CMXEXDC_H

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