rsmooth.h

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// $Id: rsmooth.h 1282 2006-06-09 09:46:49Z alex $
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 */
// Contains class definitions for retrosmoothing functions

/*
*/

#ifndef INC_RETSMOOTH
#define INC_RETSMOOTH

//#include "selop.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "doccoord.h" - in camtypes.h [AUTOMATICALLY REMOVED]

#define SMOOTH_MAX (2000*2000)
#define SMOOTH_MIN (256*256)

#define OPTOKEN_RETROSMOOTH _T("RetroSmooth")


//  define a region type to hold region start, end values

struct Set {
    INT32 first;
    BOOL Finclusive;
    INT32 last;
    BOOL Linclusive;
};

#define ITEM_TYPE Set

class NodePath;

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

    class DynArray

    Author:     Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>
    Created:    16/11/94
    Purpose:    A temporary class to control a dynamic array of doccoords.
                This will be replaced by a template class whenever we can
                use the template directive.
    
******************************************************************************/

class DynArray {

    public:
        DynArray();
        ~DynArray();
        BOOL        Initialise(INT32 inititems, INT32 newitems);
        ITEM_TYPE*  GetFirstItem();
        INT32       NumItems() { return UsedSlots; };
        BOOL        AddItem(ITEM_TYPE&);
        void        DeleteItems(INT32 firstitem, INT32 numitems);
        void        Empty(BOOL compress=TRUE);
        ITEM_TYPE&  operator[](const INT32 i);
        void        Compact();
        BOOL        CloneFrom(DynArray* SourceArray);

    private:
        BOOL    MakeSpaceInList(const INT32 numitems);

    private:
        MHANDLE BlockHandle;

        INT32   UsedSlots;
        INT32   UnusedSlots;
        INT32   SlotInitSize;
        INT32   SlotAllocSize;

};


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

> class RetroSmooth

    Author:     Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/11/94
    Purpose:    A new class to control retro smoothing of path regions.

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

class RetroSmooth
{
    public:
        RetroSmooth();
        BOOL    Initialise();
        void    Changing(NodePath* pNodePath, Spread* pSpread, double smooth);
        void    Finished();
        void    Invalidate();
        double  ReturnCachedAccuracy(Path* pPath);

        // non-undoable version of finished. does not launch an operation
        BOOL    FinishedNoUndo(NodePath* pNodePath);
        void    SetRenderFlag(BOOL Render);
    private:
        BOOL    Starting(NodePath* pDocNodePath);
        void    Update();
        BOOL    RenderRegions();
        BOOL    NewPathToSmooth(NodePath* pNodePath);
        BOOL    MatchRegions(NodePath* pNodePath);
        BOOL    RecordPathRegions(Path* pPath);
        void    AlterRegion(INT32 index, INT32 newstart, INT32 newend);
        INT32   FindMasterRegion();
        void    TranslateRetroData(Path* pPath);

    private:
        BOOL        RetroSmoothing;
        NodePath*   pRetroNode;             // a pointer to the current 'retro' node
        Spread*     pRetroSpread;
        Path        RetroPath;              // the original path points we need
        Path        RetroEorPath;           // the current path points after smoothing
        DynArray    RetroEorRegion;         // the working path regions
        double      RetroSmoothPercent;     // the current cached percentage
        double      RetroSmoothAcc;         // the current retro smoothing accurary
        INT32       RetroPathCRC;           // cyclic reduncancy for the EorPath
        INT32       RetroSelCRC;            // cyclic redundancy for the Selected points

        BOOL        m_bRender;              // flag to say whether or not we should do EOR rendering
};


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

>   class OpRetroSmooth : public SelOperation

    Author:     Mike_Kenny (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/10/94
    Purpose:    

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

class OpRetroSmooth : public SelOperation
{

CC_DECLARE_DYNCREATE(OpRetroSmooth)

public:
    OpRetroSmooth();
    static BOOL     Init();             
    static OpState  GetState(String_256*, OpDescriptor*);       
    void            GetOpName(String_256* OpName);
    void            DoRetroSmooth(NodePath* pNode, Path* pPath, double smoothacc);
};


#endif

---