ndbldpth.h

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// $Id: ndbldpth.h 1282 2006-06-09 09:46:49Z alex $
// The NodeBlendPath renderable class
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
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 */

#ifndef INC_NODEBLENDPATH
#define INC_NODEBLENDPATH

//#include "ops.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "nodepath.h"
#include "brpress.h"

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

>   class NodeBlendPath : public NodePath

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    29/4/99
    Purpose:    defines the structure of a node blend path object. This object exists only as
                a child of a blend object
    SeeAlso:    NodeBlend (the parent object)

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

class NodeBlendPath : public NodePath
{   
    // Give my name out in memory dumps
CC_DECLARE_DYNCREATE( NodeBlendPath )

public:
     NodeBlendPath();
    ~NodeBlendPath();

    NodeBlendPath(  Node* ContextNode,  
                    AttachNodeDirection Direction,  
                    BOOL Locked = FALSE, 
                    BOOL Mangled = FALSE,  
                    BOOL Marked = FALSE, 
                    BOOL Selected = FALSE );

    // Virtual rendering functions       
    virtual BOOL    ExportRender( RenderRegion* pRender ); 
                
    virtual Node*   SimpleCopy();
    virtual void    Render( RenderRegion* pRender );
    virtual void    RenderEorDrag( RenderRegion* );
    virtual void    RenderObjectBlobs(RenderRegion* pRender);
    virtual DocRect GetBoundingRect(BOOL DontUseAttrs=FALSE, BOOL HitTest=FALSE);
    virtual CopyType GetCopyType() { return COMPLEXCOPY; };
    virtual INT32   ComplexCopy(CopyStage Stage, Range& RangeToCopy, Node** pOutput);

    virtual BOOL    AllowOp(ObjChangeParam* pParam, BOOL SetOpPermissionState,
                                                    BOOL DoPreTriggerEdit = TRUE);
    virtual BOOL    OnEdited(ObjChangeParam* pParam);

    virtual BOOL    DoBecomeA(BecomeA* pBecomeA);

    // Blob rendering
    void RenderBlendBlobs(RenderRegion* pRender);

    // Version 2 file format functions
    virtual BOOL WritePreChildrenWeb(BaseCamelotFilter* pFilter);
    virtual BOOL WritePreChildrenNative(BaseCamelotFilter* pFilter);

    virtual BOOL IsANodeBlendPath();


    BOOL        CopyNodePath(NodePath* pNodePathToCopy);
    NodePath*   CreateNodePathCopy();

    double  GetPathLength();
    BOOL    GetPointAtDistance(MILLIPOINT Dist,DocCoord* pPoint,double* pTangent);
    
    
    void DestroyCachedInformation();

    // DY 9/99 access functions to find out which NBP this is
    INT32 SetPathIndex();
    UINT32 GetPathIndex();

    virtual void PolyCopyNodeContents(NodeRenderable* pNodeCopy);

protected:
    void CopyNodeContents( NodeBlendPath* NodeCopy );       // Copies the contents of the path

    double m_CachedPathLength;
    CMap< MILLIPOINT, MILLIPOINT &, CPathPointInfo, CPathPointInfo & > *m_pCachedPointsAtDistance;

    // to keep track of blends containing multiple nodeblendpaths
    UINT32 m_Index;
private:
    BOOL InsideBlend();

    // CAM/AW EPS output functions
    BOOL ExportCAMEPS(RenderRegion* pRegion);
    BOOL ExportAWEPS(RenderRegion* pRegion);



};


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

>   class InitNodeBlendPathAction : public Action

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    4/5/99
    Purpose:    An action which destroys the cached info in a blend path node
    SeeAlso:    -

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

class InitNodeBlendPathAction : public Action
{

CC_DECLARE_DYNCREATE(InitNodeBlendPathAction)

public:
    InitNodeBlendPathAction() { m_pNodeBlendPath = NULL; }
    ~InitNodeBlendPathAction() {}
    virtual ActionCode Execute();
    static ActionCode Init( UndoableOperation* pOp,ActionList* pActionList,NodeBlendPath* pNodeBlendPath);
protected:
    NodeBlendPath* m_pNodeBlendPath;
};


#endif // INC_NODEBLENDPATH

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